src/com/android/browser/BrowserActivity.java

   1 /*
   2  * Copyright (C) 2006 The Android Open Source Project
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package com.android.browser;
  18
  19 import com.google.android.googleapps.IGoogleLoginService;
  20 import com.google.android.googlelogin.GoogleLoginServiceConstants;
  21
  22 import android.app.Activity;
  23 import android.app.AlertDialog;
  24 import android.app.ProgressDialog;
  25 import android.app.SearchManager;
  26 import android.content.ActivityNotFoundException;
  27 import android.content.BroadcastReceiver;
  28 import android.content.ComponentName;
  29 import android.content.ContentResolver;
  30 import android.content.ContentUris;
  31 import android.content.ContentValues;
  32 import android.content.Context;
  33 import android.content.DialogInterface;
  34 import android.content.Intent;
  35 import android.content.IntentFilter;
  36 import android.content.ServiceConnection;
  37 import android.content.DialogInterface.OnCancelListener;
  38 import android.content.pm.PackageInfo;
  39 import android.content.pm.PackageManager;
  40 import android.content.pm.ResolveInfo;
  41 import android.content.res.AssetManager;
  42 import android.content.res.Configuration;
  43 import android.content.res.Resources;
  44 import android.database.Cursor;
  45 import android.database.sqlite.SQLiteDatabase;
  46 import android.database.sqlite.SQLiteException;
  47 import android.graphics.Bitmap;
  48 import android.graphics.BitmapFactory;
  49 import android.graphics.Canvas;
  50 import android.graphics.DrawFilter;
  51 import android.graphics.Paint;
  52 import android.graphics.PaintFlagsDrawFilter;
  53 import android.graphics.Picture;
  54 import android.graphics.PixelFormat;
  55 import android.graphics.Rect;
  56 import android.graphics.drawable.Drawable;
  57 import android.hardware.SensorListener;
  58 import android.hardware.SensorManager;
  59 import android.net.ConnectivityManager;
  60 import android.net.NetworkInfo;
  61 import android.net.Uri;
  62 import android.net.WebAddress;
  63 import android.net.http.EventHandler;
  64 import android.net.http.SslCertificate;
  65 import android.net.http.SslError;
  66 import android.os.AsyncTask;
  67 import android.os.Bundle;
  68 import android.os.Debug;
  69 import android.os.Environment;
  70 import android.os.Handler;
  71 import android.os.IBinder;
  72 import android.os.Message;
  73 import android.os.PowerManager;
  74 import android.os.Process;
  75 import android.os.RemoteException;
  76 import android.os.ServiceManager;
  77 import android.os.SystemClock;
  78 import android.provider.Browser;
  79 import android.provider.Contacts;
  80 import android.provider.Downloads;
  81 import android.provider.MediaStore;
  82 import android.provider.Contacts.Intents.Insert;
  83 import android.text.IClipboard;
  84 import android.text.TextUtils;
  85 import android.text.format.DateFormat;
  86 import android.text.util.Regex;
  87 import android.util.Log;
  88 import android.view.ContextMenu;
  89 import android.view.Gravity;
  90 import android.view.KeyEvent;
  91 import android.view.LayoutInflater;
  92 import android.view.Menu;
  93 import android.view.MenuInflater;
  94 import android.view.MenuItem;
  95 import android.view.View;
  96 import android.view.ViewGroup;
  97 import android.view.Window;
  98 import android.view.WindowManager;
  99 import android.view.ContextMenu.ContextMenuInfo;
 100 import android.view.MenuItem.OnMenuItemClickListener;
 101 import android.view.animation.AlphaAnimation;
 102 import android.view.animation.Animation;
 103 import android.view.animation.AnimationSet;
 104 import android.view.animation.DecelerateInterpolator;
 105 import android.view.animation.ScaleAnimation;
 106 import android.view.animation.TranslateAnimation;
 107 import android.webkit.CookieManager;
 108 import android.webkit.CookieSyncManager;
 109 import android.webkit.DownloadListener;
 110 import android.webkit.GeolocationPermissions;
 111 import android.webkit.HttpAuthHandler;
 112 import android.webkit.PluginManager;
 113 import android.webkit.SslErrorHandler;
 114 import android.webkit.URLUtil;
 115 import android.webkit.WebChromeClient;
 116 import android.webkit.WebChromeClient.CustomViewCallback;
 117 import android.webkit.WebHistoryItem;
 118 import android.webkit.WebIconDatabase;
 119 import android.webkit.WebStorage;
 120 import android.webkit.WebView;
 121 import android.webkit.WebViewClient;
 122 import android.widget.EditText;
 123 import android.widget.FrameLayout;
 124 import android.widget.LinearLayout;
 125 import android.widget.TextView;
 126 import android.widget.Toast;
 127
 128 import java.io.BufferedOutputStream;
 129 import java.io.ByteArrayOutputStream;
 130 import java.io.File;
 131 import java.io.FileInputStream;
 132 import java.io.FileOutputStream;
 133 import java.io.IOException;
 134 import java.io.InputStream;
 135 import java.net.MalformedURLException;
 136 import java.net.URI;
 137 import java.net.URISyntaxException;
 138 import java.net.URL;
 139 import java.net.URLEncoder;
 140 import java.text.ParseException;
 141 import java.util.Date;
 142 import java.util.Enumeration;
 143 import java.util.HashMap;
 144 import java.util.LinkedList;
 145 import java.util.Vector;
 146 import java.util.regex.Matcher;
 147 import java.util.regex.Pattern;
 148 import java.util.zip.ZipEntry;
 149 import java.util.zip.ZipFile;
 150
 151 public class BrowserActivity extends Activity
 152     implements KeyTracker.OnKeyTracker,
 153         View.OnCreateContextMenuListener,
 154         DownloadListener {
 155
 156     /* Define some aliases to make these debugging flags easier to refer to.
 157      * This file imports android.provider.Browser, so we can't just refer to "Browser.DEBUG".
 158      */
 159     private final static boolean DEBUG = com.android.browser.Browser.DEBUG;
 160     private final static boolean LOGV_ENABLED = com.android.browser.Browser.LOGV_ENABLED;
 161     private final static boolean LOGD_ENABLED = com.android.browser.Browser.LOGD_ENABLED;
 162
 163     private IGoogleLoginService mGls = null;
 164     private ServiceConnection mGlsConnection = null;
 165
 166     private SensorManager mSensorManager = null;
 167
 168     // These are single-character shortcuts for searching popular sources.
 169     private static final int SHORTCUT_INVALID = 0;
 170     private static final int SHORTCUT_GOOGLE_SEARCH = 1;
 171     private static final int SHORTCUT_WIKIPEDIA_SEARCH = 2;
 172     private static final int SHORTCUT_DICTIONARY_SEARCH = 3;
 173     private static final int SHORTCUT_GOOGLE_MOBILE_LOCAL_SEARCH = 4;
 174
 175     /* Whitelisted webpages
 176     private static HashSet<String> sWhiteList;
 177
 178     static {
 179         sWhiteList = new HashSet<String>();
 180         sWhiteList.add("cnn.com/");
 181         sWhiteList.add("espn.go.com/");
 182         sWhiteList.add("nytimes.com/");
 183         sWhiteList.add("engadget.com/");
 184         sWhiteList.add("yahoo.com/");
 185         sWhiteList.add("msn.com/");
 186         sWhiteList.add("amazon.com/");
 187         sWhiteList.add("consumerist.com/");
 188         sWhiteList.add("google.com/m/news");
 189     }
 190     */
 191
 192     private void setupHomePage() {
 193         final Runnable getAccount = new Runnable() {
 194             public void run() {
 195                 // Lower priority
 196                 Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
 197                 // get the default home page
 198                 String homepage = mSettings.getHomePage();
 199
 200                 try {
 201                     if (mGls == null) return;
 202
 203                     if (!homepage.startsWith("http://www.google.")) return;
 204                     if (homepage.indexOf('?') == -1) return;
 205
 206                     String hostedUser = mGls.getAccount(GoogleLoginServiceConstants.PREFER_HOSTED);
 207                     String googleUser = mGls.getAccount(GoogleLoginServiceConstants.REQUIRE_GOOGLE);
 208
 209                     // three cases:
 210                     //
 211                     //   hostedUser == googleUser
 212                     //      The device has only a google account
 213                     //
 214                     //   hostedUser != googleUser
 215                     //      The device has a hosted account and a google account
 216                     //
 217                     //   hostedUser != null, googleUser == null
 218                     //      The device has only a hosted account (so far)
 219
 220                     // developers might have no accounts at all
 221                     if (hostedUser == null) return;
 222
 223                     if (googleUser == null || !hostedUser.equals(googleUser)) {
 224                         String domain = hostedUser.substring(hostedUser.lastIndexOf('@')+1);
 225                         homepage = homepage.replace("?", "/a/" + domain + "?");
 226                     }
 227                 } catch (RemoteException ignore) {
 228                     // Login service died; carry on
 229                 } catch (RuntimeException ignore) {
 230                     // Login service died; carry on
 231                 } finally {
 232                     finish(homepage);
 233                 }
 234             }
 235
 236             private void finish(final String homepage) {
 237                 mHandler.post(new Runnable() {
 238                     public void run() {
 239                         mSettings.setHomePage(BrowserActivity.this, homepage);
 240                         resumeAfterCredentials();
 241
 242                         // as this is running in a separate thread,
 243                         // BrowserActivity's onDestroy() may have been called,
 244                         // which also calls unbindService().
 245                         if (mGlsConnection != null) {
 246                             // we no longer need to keep GLS open
 247                             unbindService(mGlsConnection);
 248                             mGlsConnection = null;
 249                         }
 250                     } });
 251             } };
 252
 253         final boolean[] done = { false };
 254
 255         // Open a connection to the Google Login Service.  The first
 256         // time the connection is established, set up the homepage depending on
 257         // the account in a background thread.
 258         mGlsConnection = new ServiceConnection() {
 259             public void onServiceConnected(ComponentName className, IBinder service) {
 260                 mGls = IGoogleLoginService.Stub.asInterface(service);
 261                 if (done[0] == false) {
 262                     done[0] = true;
 263                     Thread account = new Thread(getAccount);
 264                     account.setName("GLSAccount");
 265                     account.start();
 266                 }
 267             }
 268             public void onServiceDisconnected(ComponentName className) {
 269                 mGls = null;
 270             }
 271         };
 272
 273         bindService(GoogleLoginServiceConstants.SERVICE_INTENT,
 274                     mGlsConnection, Context.BIND_AUTO_CREATE);
 275     }
 276
 277     private static class ClearThumbnails extends AsyncTask<File, Void, Void> {
 278         @Override
 279         public Void doInBackground(File... files) {
 280             if (files != null) {
 281                 for (File f : files) {
 282                     if (!f.delete()) {
 283                       Log.e(LOGTAG, f.getPath() + " was not deleted");
 284                     }
 285                 }
 286             }
 287             return null;
 288         }
 289     }
 290
 291     /**
 292      * This layout holds everything you see below the status bar, including the
 293      * error console, the custom view container, and the webviews.
 294      */
 295     private FrameLayout mBrowserFrameLayout;
 296
 297     @Override public void onCreate(Bundle icicle) {
 298         if (LOGV_ENABLED) {
 299             Log.v(LOGTAG, this + " onStart");
 300         }
 301         super.onCreate(icicle);
 302         // test the browser in OpenGL
 303         // requestWindowFeature(Window.FEATURE_OPENGL);
 304
 305         setDefaultKeyMode(DEFAULT_KEYS_SEARCH_LOCAL);
 306
 307         mResolver = getContentResolver();
 308
 309         //
 310         // start MASF proxy service
 311         //
 312         //Intent proxyServiceIntent = new Intent();
 313         //proxyServiceIntent.setComponent
 314         //    (new ComponentName(
 315         //        "com.android.masfproxyservice",
 316         //        "com.android.masfproxyservice.MasfProxyService"));
 317         //startService(proxyServiceIntent, null);
 318
 319         mSecLockIcon = Resources.getSystem().getDrawable(
 320                 android.R.drawable.ic_secure);
 321         mMixLockIcon = Resources.getSystem().getDrawable(
 322                 android.R.drawable.ic_partial_secure);
 323
 324         FrameLayout frameLayout = (FrameLayout) getWindow().getDecorView()
 325                 .findViewById(com.android.internal.R.id.content);
 326         mBrowserFrameLayout = (FrameLayout) LayoutInflater.from(this)
 327                 .inflate(R.layout.custom_screen, null);
 328         mContentView = (FrameLayout) mBrowserFrameLayout.findViewById(
 329                 R.id.main_content);
 330         mErrorConsoleContainer = (LinearLayout) mBrowserFrameLayout
 331                 .findViewById(R.id.error_console);
 332         mCustomViewContainer = (FrameLayout) mBrowserFrameLayout
 333                 .findViewById(R.id.fullscreen_custom_content);
 334         frameLayout.addView(mBrowserFrameLayout, COVER_SCREEN_PARAMS);
 335         mTitleBar = new TitleBar(this);
 336
 337         // Create the tab control and our initial tab
 338         mTabControl = new TabControl(this);
 339
 340         // Open the icon database and retain all the bookmark urls for favicons
 341         retainIconsOnStartup();
 342
 343         // Keep a settings instance handy.
 344         mSettings = BrowserSettings.getInstance();
 345         mSettings.setTabControl(mTabControl);
 346         mSettings.loadFromDb(this);
 347
 348         PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 349         mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "Browser");
 350
 351         /* enables registration for changes in network status from
 352            http stack */
 353         mNetworkStateChangedFilter = new IntentFilter();
 354         mNetworkStateChangedFilter.addAction(
 355                 ConnectivityManager.CONNECTIVITY_ACTION);
 356         mNetworkStateIntentReceiver = new BroadcastReceiver() {
 357                 @Override
 358                 public void onReceive(Context context, Intent intent) {
 359                     if (intent.getAction().equals(
 360                             ConnectivityManager.CONNECTIVITY_ACTION)) {
 361                         NetworkInfo info =
 362                                 (NetworkInfo) intent.getParcelableExtra(
 363                                         ConnectivityManager.EXTRA_NETWORK_INFO);
 364                         onNetworkToggle(
 365                                 (info != null) ? info.isConnected() : false);
 366                     }
 367                 }
 368             };
 369
 370         IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);
 371         filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
 372         filter.addDataScheme("package");
 373         mPackageInstallationReceiver = new BroadcastReceiver() {
 374             @Override
 375             public void onReceive(Context context, Intent intent) {
 376                 final String action = intent.getAction();
 377                 final String packageName = intent.getData()
 378                         .getSchemeSpecificPart();
 379                 final boolean replacing = intent.getBooleanExtra(
 380                         Intent.EXTRA_REPLACING, false);
 381                 if (Intent.ACTION_PACKAGE_REMOVED.equals(action) && replacing) {
 382                     // if it is replacing, refreshPlugins() when adding
 383                     return;
 384                 }
 385                 PackageManager pm = BrowserActivity.this.getPackageManager();
 386                 PackageInfo pkgInfo = null;
 387                 try {
 388                     pkgInfo = pm.getPackageInfo(packageName,
 389                             PackageManager.GET_PERMISSIONS);
 390                 } catch (PackageManager.NameNotFoundException e) {
 391                     return;
 392                 }
 393                 if (pkgInfo != null) {
 394                     String permissions[] = pkgInfo.requestedPermissions;
 395                     if (permissions == null) {
 396                         return;
 397                     }
 398                     boolean permissionOk = false;
 399                     for (String permit : permissions) {
 400                         if (PluginManager.PLUGIN_PERMISSION.equals(permit)) {
 401                             permissionOk = true;
 402                             break;
 403                         }
 404                     }
 405                     if (permissionOk) {
 406                         PluginManager.getInstance(BrowserActivity.this)
 407                                 .refreshPlugins(
 408                                         Intent.ACTION_PACKAGE_ADDED
 409                                                 .equals(action));
 410                     }
 411                 }
 412             }
 413         };
 414         registerReceiver(mPackageInstallationReceiver, filter);
 415
 416         // If this was a web search request, pass it on to the default web search provider.
 417         if (handleWebSearchIntent(getIntent())) {
 418             moveTaskToBack(true);
 419             return;
 420         }
 421
 422         if (!mTabControl.restoreState(icicle)) {
 423             // clear up the thumbnail directory if we can't restore the state as
 424             // none of the files in the directory are referenced any more.
 425             new ClearThumbnails().execute(
 426                     mTabControl.getThumbnailDir().listFiles());
 427             // there is no quit on Android. But if we can't restore the state,
 428             // we can treat it as a new Browser, remove the old session cookies.
 429             CookieManager.getInstance().removeSessionCookie();
 430             final Intent intent = getIntent();
 431             final Bundle extra = intent.getExtras();
 432             // Create an initial tab.
 433             // If the intent is ACTION_VIEW and data is not null, the Browser is
 434             // invoked to view the content by another application. In this case,
 435             // the tab will be close when exit.
 436             UrlData urlData = getUrlDataFromIntent(intent);
 437
 438             final TabControl.Tab t = mTabControl.createNewTab(
 439                     Intent.ACTION_VIEW.equals(intent.getAction()) &&
 440                     intent.getData() != null,
 441                     intent.getStringExtra(Browser.EXTRA_APPLICATION_ID), urlData.mUrl);
 442             mTabControl.setCurrentTab(t);
 443             attachTabToContentView(t);
 444             WebView webView = t.getWebView();
 445             if (extra != null) {
 446                 int scale = extra.getInt(Browser.INITIAL_ZOOM_LEVEL, 0);
 447                 if (scale > 0 && scale <= 1000) {
 448                     webView.setInitialScale(scale);
 449                 }
 450             }
 451             // If we are not restoring from an icicle, then there is a high
 452             // likely hood this is the first run. So, check to see if the
 453             // homepage needs to be configured and copy any plugins from our
 454             // asset directory to the data partition.
 455             if ((extra == null || !extra.getBoolean("testing"))
 456                     && !mSettings.isLoginInitialized()) {
 457                 setupHomePage();
 458             }
 459
 460             if (urlData.isEmpty()) {
 461                 if (mSettings.isLoginInitialized()) {
 462                     webView.loadUrl(mSettings.getHomePage());
 463                 } else {
 464                     waitForCredentials();
 465                 }
 466             } else {
 467                 if (extra != null) {
 468                     urlData.setPostData(extra
 469                             .getByteArray(Browser.EXTRA_POST_DATA));
 470                 }
 471                 urlData.loadIn(webView);
 472             }
 473         } else {
 474             // TabControl.restoreState() will create a new tab even if
 475             // restoring the state fails.
 476             attachTabToContentView(mTabControl.getCurrentTab());
 477         }
 478
 479         // Read JavaScript flags if it exists.
 480         String jsFlags = mSettings.getJsFlags();
 481         if (jsFlags.trim().length() != 0) {
 482             mTabControl.getCurrentWebView().setJsFlags(jsFlags);
 483         }
 484     }
 485
 486     @Override
 487     protected void onNewIntent(Intent intent) {
 488         TabControl.Tab current = mTabControl.getCurrentTab();
 489         // When a tab is closed on exit, the current tab index is set to -1.
 490         // Reset before proceed as Browser requires the current tab to be set.
 491         if (current == null) {
 492             // Try to reset the tab in case the index was incorrect.
 493             current = mTabControl.getTab(0);
 494             if (current == null) {
 495                 // No tabs at all so just ignore this intent.
 496                 return;
 497             }
 498             mTabControl.setCurrentTab(current);
 499             attachTabToContentView(current);
 500             resetTitleAndIcon(current.getWebView());
 501         }
 502         final String action = intent.getAction();
 503         final int flags = intent.getFlags();
 504         if (Intent.ACTION_MAIN.equals(action) ||
 505                 (flags & Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY) != 0) {
 506             // just resume the browser
 507             return;
 508         }
 509         if (Intent.ACTION_VIEW.equals(action)
 510                 || Intent.ACTION_SEARCH.equals(action)
 511                 || MediaStore.INTENT_ACTION_MEDIA_SEARCH.equals(action)
 512                 || Intent.ACTION_WEB_SEARCH.equals(action)) {
 513             // If this was a search request (e.g. search query directly typed into the address bar),
 514             // pass it on to the default web search provider.
 515             if (handleWebSearchIntent(intent)) {
 516                 return;
 517             }
 518
 519             UrlData urlData = getUrlDataFromIntent(intent);
 520             if (urlData.isEmpty()) {
 521                 urlData = new UrlData(mSettings.getHomePage());
 522             }
 523             urlData.setPostData(intent
 524                     .getByteArrayExtra(Browser.EXTRA_POST_DATA));
 525
 526             final String appId = intent
 527                     .getStringExtra(Browser.EXTRA_APPLICATION_ID);
 528             if (Intent.ACTION_VIEW.equals(action)
 529                     && !getPackageName().equals(appId)
 530                     && (flags & Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT) != 0) {
 531                 TabControl.Tab appTab = mTabControl.getTabFromId(appId);
 532                 if (appTab != null) {
 533                     Log.i(LOGTAG, "Reusing tab for " + appId);
 534                     // Dismiss the subwindow if applicable.
 535                     dismissSubWindow(appTab);
 536                     // Since we might kill the WebView, remove it from the
 537                     // content view first.
 538                     removeTabFromContentView(appTab);
 539                     // Recreate the main WebView after destroying the old one.
 540                     // If the WebView has the same original url and is on that
 541                     // page, it can be reused.
 542                     boolean needsLoad =
 543                             mTabControl.recreateWebView(appTab, urlData.mUrl);
 544
 545                     if (current != appTab) {
 546                         switchToTab(mTabControl.getTabIndex(appTab));
 547                         if (needsLoad) {
 548                             urlData.loadIn(appTab.getWebView());
 549                         }
 550                     } else {
 551                         // If the tab was the current tab, we have to attach
 552                         // it to the view system again.
 553                         attachTabToContentView(appTab);
 554                         if (needsLoad) {
 555                             urlData.loadIn(appTab.getWebView());
 556                         }
 557                     }
 558                     return;
 559                 } else {
 560                     // No matching application tab, try to find a regular tab
 561                     // with a matching url.
 562                     appTab = mTabControl.findUnusedTabWithUrl(urlData.mUrl);
 563                     if (appTab != null) {
 564                         if (current != appTab) {
 565                             switchToTab(mTabControl.getTabIndex(appTab));
 566                         }
 567                         // Otherwise, we are already viewing the correct tab.
 568                     } else {
 569                         // if FLAG_ACTIVITY_BROUGHT_TO_FRONT flag is on, the url
 570                         // will be opened in a new tab unless we have reached
 571                         // MAX_TABS. Then the url will be opened in the current
 572                         // tab. If a new tab is created, it will have "true" for
 573                         // exit on close.
 574                         openTabAndShow(urlData, true, appId);
 575                     }
 576                 }
 577             } else {
 578                 if ("about:debug".equals(urlData.mUrl)) {
 579                     mSettings.toggleDebugSettings();
 580                     return;
 581                 }
 582                 // Get rid of the subwindow if it exists
 583                 dismissSubWindow(current);
 584                 urlData.loadIn(current.getWebView());
 585             }
 586         }
 587     }
 588
 589     private int parseUrlShortcut(String url) {
 590         if (url == null) return SHORTCUT_INVALID;
 591
 592         // FIXME: quick search, need to be customized by setting
 593         if (url.length() > 2 && url.charAt(1) == ' ') {
 594             switch (url.charAt(0)) {
 595             case 'g': return SHORTCUT_GOOGLE_SEARCH;
 596             case 'w': return SHORTCUT_WIKIPEDIA_SEARCH;
 597             case 'd': return SHORTCUT_DICTIONARY_SEARCH;
 598             case 'l': return SHORTCUT_GOOGLE_MOBILE_LOCAL_SEARCH;
 599             }
 600         }
 601         return SHORTCUT_INVALID;
 602     }
 603
 604     /**
 605      * Launches the default web search activity with the query parameters if the given intent's data
 606      * are identified as plain search terms and not URLs/shortcuts.
 607      * @return true if the intent was handled and web search activity was launched, false if not.
 608      */
 609     private boolean handleWebSearchIntent(Intent intent) {
 610         if (intent == null) return false;
 611
 612         String url = null;
 613         final String action = intent.getAction();
 614         if (Intent.ACTION_VIEW.equals(action)) {
 615             url = intent.getData().toString();
 616         } else if (Intent.ACTION_SEARCH.equals(action)
 617                 || MediaStore.INTENT_ACTION_MEDIA_SEARCH.equals(action)
 618                 || Intent.ACTION_WEB_SEARCH.equals(action)) {
 619             url = intent.getStringExtra(SearchManager.QUERY);
 620         }
 621         return handleWebSearchRequest(url, intent.getBundleExtra(SearchManager.APP_DATA));
 622     }
 623
 624     /**
 625      * Launches the default web search activity with the query parameters if the given url string
 626      * was identified as plain search terms and not URL/shortcut.
 627      * @return true if the request was handled and web search activity was launched, false if not.
 628      */
 629     private boolean handleWebSearchRequest(String inUrl, Bundle appData) {
 630         if (inUrl == null) return false;
 631
 632         // In general, we shouldn't modify URL from Intent.
 633         // But currently, we get the user-typed URL from search box as well.
 634         String url = fixUrl(inUrl).trim();
 635
 636         // URLs and site specific search shortcuts are handled by the regular flow of control, so
 637         // return early.
 638         if (Regex.WEB_URL_PATTERN.matcher(url).matches()
 639                 || ACCEPTED_URI_SCHEMA.matcher(url).matches()
 640                 || parseUrlShortcut(url) != SHORTCUT_INVALID) {
 641             return false;
 642         }
 643
 644         Browser.updateVisitedHistory(mResolver, url, false);
 645         Browser.addSearchUrl(mResolver, url);
 646
 647         Intent intent = new Intent(Intent.ACTION_WEB_SEARCH);
 648         intent.addCategory(Intent.CATEGORY_DEFAULT);
 649         intent.putExtra(SearchManager.QUERY, url);
 650         if (appData != null) {
 651             intent.putExtra(SearchManager.APP_DATA, appData);
 652         }
 653         intent.putExtra(Browser.EXTRA_APPLICATION_ID, getPackageName());
 654         startActivity(intent);
 655
 656         return true;
 657     }
 658
 659     private UrlData getUrlDataFromIntent(Intent intent) {
 660         String url = null;
 661         if (intent != null) {
 662             final String action = intent.getAction();
 663             if (Intent.ACTION_VIEW.equals(action)) {
 664                 url = smartUrlFilter(intent.getData());
 665                 if (url != null && url.startsWith("content:")) {
 666                     /* Append mimetype so webview knows how to display */
 667                     String mimeType = intent.resolveType(getContentResolver());
 668                     if (mimeType != null) {
 669                         url += "?" + mimeType;
 670                     }
 671                 }
 672                 if ("inline:".equals(url)) {
 673                     return new InlinedUrlData(
 674                             intent.getStringExtra(Browser.EXTRA_INLINE_CONTENT),
 675                             intent.getType(),
 676                             intent.getStringExtra(Browser.EXTRA_INLINE_ENCODING),
 677                             intent.getStringExtra(Browser.EXTRA_INLINE_FAILURL));
 678                 }
 679             } else if (Intent.ACTION_SEARCH.equals(action)
 680                     || MediaStore.INTENT_ACTION_MEDIA_SEARCH.equals(action)
 681                     || Intent.ACTION_WEB_SEARCH.equals(action)) {
 682                 url = intent.getStringExtra(SearchManager.QUERY);
 683                 if (url != null) {
 684                     mLastEnteredUrl = url;
 685                     // Don't add Urls, just search terms.
 686                     // Urls will get added when the page is loaded.
 687                     if (!Regex.WEB_URL_PATTERN.matcher(url).matches()) {
 688                         Browser.updateVisitedHistory(mResolver, url, false);
 689                     }
 690                     // In general, we shouldn't modify URL from Intent.
 691                     // But currently, we get the user-typed URL from search box as well.
 692                     url = fixUrl(url);
 693                     url = smartUrlFilter(url);
 694                     String searchSource = "&source=android-" + GOOGLE_SEARCH_SOURCE_SUGGEST + "&";
 695                     if (url.contains(searchSource)) {
 696                         String source = null;
 697                         final Bundle appData = intent.getBundleExtra(SearchManager.APP_DATA);
 698                         if (appData != null) {
 699                             source = appData.getString(SearchManager.SOURCE);
 700                         }
 701                         if (TextUtils.isEmpty(source)) {
 702                             source = GOOGLE_SEARCH_SOURCE_UNKNOWN;
 703                         }
 704                         url = url.replace(searchSource, "&source=android-"+source+"&");
 705                     }
 706                 }
 707             }
 708         }
 709         return new UrlData(url);
 710     }
 711
 712     /* package */ static String fixUrl(String inUrl) {
 713         // FIXME: Converting the url to lower case
 714         // duplicates functionality in smartUrlFilter().
 715         // However, changing all current callers of fixUrl to
 716         // call smartUrlFilter in addition may have unwanted
 717         // consequences, and is deferred for now.
 718         int colon = inUrl.indexOf(':');
 719         boolean allLower = true;
 720         for (int index = 0; index < colon; index++) {
 721             char ch = inUrl.charAt(index);
 722             if (!Character.isLetter(ch)) {
 723                 break;
 724             }
 725             allLower &= Character.isLowerCase(ch);
 726             if (index == colon - 1 && !allLower) {
 727                 inUrl = inUrl.substring(0, colon).toLowerCase()
 728                         + inUrl.substring(colon);
 729             }
 730         }
 731         if (inUrl.startsWith("http://") || inUrl.startsWith("https://"))
 732             return inUrl;
 733         if (inUrl.startsWith("http:") ||
 734                 inUrl.startsWith("https:")) {
 735             if (inUrl.startsWith("http:/") || inUrl.startsWith("https:/")) {
 736                 inUrl = inUrl.replaceFirst("/", "//");
 737             } else inUrl = inUrl.replaceFirst(":", "://");
 738         }
 739         return inUrl;
 740     }
 741
 742     /**
 743      * Looking for the pattern like this
 744      *
 745      *          *
 746      *         * *
 747      *      ***   *     *******
 748      *             *   *
 749      *              * *
 750      *               *
 751      */
 752     private final SensorListener mSensorListener = new SensorListener() {
 753         private long mLastGestureTime;
 754         private float[] mPrev = new float[3];
 755         private float[] mPrevDiff = new float[3];
 756         private float[] mDiff = new float[3];
 757         private float[] mRevertDiff = new float[3];
 758
 759         public void onSensorChanged(int sensor, float[] values) {
 760             boolean show = false;
 761             float[] diff = new float[3];
 762
 763             for (int i = 0; i < 3; i++) {
 764                 diff[i] = values[i] - mPrev[i];
 765                 if (Math.abs(diff[i]) > 1) {
 766                     show = true;
 767                 }
 768                 if ((diff[i] > 1.0 && mDiff[i] < 0.2)
 769                         || (diff[i] < -1.0 && mDiff[i] > -0.2)) {
 770                     // start track when there is a big move, or revert
 771                     mRevertDiff[i] = mDiff[i];
 772                     mDiff[i] = 0;
 773                 } else if (diff[i] > -0.2 && diff[i] < 0.2) {
 774                     // reset when it is flat
 775                     mDiff[i] = mRevertDiff[i]  = 0;
 776                 }
 777                 mDiff[i] += diff[i];
 778                 mPrevDiff[i] = diff[i];
 779                 mPrev[i] = values[i];
 780             }
 781
 782             if (false) {
 783                 // only shows if we think the delta is big enough, in an attempt
 784                 // to detect "serious" moves left/right or up/down
 785                 Log.d("BrowserSensorHack", "sensorChanged " + sensor + " ("
 786                         + values[0] + ", " + values[1] + ", " + values[2] + ")"
 787                         + " diff(" + diff[0] + " " + diff[1] + " " + diff[2]
 788                         + ")");
 789                 Log.d("BrowserSensorHack", "      mDiff(" + mDiff[0] + " "
 790                         + mDiff[1] + " " + mDiff[2] + ")" + " mRevertDiff("
 791                         + mRevertDiff[0] + " " + mRevertDiff[1] + " "
 792                         + mRevertDiff[2] + ")");
 793             }
 794
 795             long now = android.os.SystemClock.uptimeMillis();
 796             if (now - mLastGestureTime > 1000) {
 797                 mLastGestureTime = 0;
 798
 799                 float y = mDiff[1];
 800                 float z = mDiff[2];
 801                 float ay = Math.abs(y);
 802                 float az = Math.abs(z);
 803                 float ry = mRevertDiff[1];
 804                 float rz = mRevertDiff[2];
 805                 float ary = Math.abs(ry);
 806                 float arz = Math.abs(rz);
 807                 boolean gestY = ay > 2.5f && ary > 1.0f && ay > ary;
 808                 boolean gestZ = az > 3.5f && arz > 1.0f && az > arz;
 809
 810                 if ((gestY || gestZ) && !(gestY && gestZ)) {
 811                     WebView view = mTabControl.getCurrentWebView();
 812
 813                     if (view != null) {
 814                         if (gestZ) {
 815                             if (z < 0) {
 816                                 view.zoomOut();
 817                             } else {
 818                                 view.zoomIn();
 819                             }
 820                         } else {
 821                             view.flingScroll(0, Math.round(y * 100));
 822                         }
 823                     }
 824                     mLastGestureTime = now;
 825                 }
 826             }
 827         }
 828
 829         public void onAccuracyChanged(int sensor, int accuracy) {
 830             // TODO Auto-generated method stub
 831
 832         }
 833     };
 834
 835     @Override protected void onResume() {
 836         super.onResume();
 837         if (LOGV_ENABLED) {
 838             Log.v(LOGTAG, "BrowserActivity.onResume: this=" + this);
 839         }
 840
 841         if (!mActivityInPause) {
 842             Log.e(LOGTAG, "BrowserActivity is already resumed.");
 843             return;
 844         }
 845
 846         mTabControl.resumeCurrentTab();
 847         mActivityInPause = false;
 848         resumeWebViewTimers();
 849
 850         if (mWakeLock.isHeld()) {
 851             mHandler.removeMessages(RELEASE_WAKELOCK);
 852             mWakeLock.release();
 853         }
 854
 855         if (mCredsDlg != null) {
 856             if (!mHandler.hasMessages(CANCEL_CREDS_REQUEST)) {
 857              // In case credential request never comes back
 858                 mHandler.sendEmptyMessageDelayed(CANCEL_CREDS_REQUEST, 6000);
 859             }
 860         }
 861
 862         registerReceiver(mNetworkStateIntentReceiver,
 863                          mNetworkStateChangedFilter);
 864         WebView.enablePlatformNotifications();
 865
 866         if (mSettings.doFlick()) {
 867             if (mSensorManager == null) {
 868                 mSensorManager = (SensorManager) getSystemService(
 869                         Context.SENSOR_SERVICE);
 870             }
 871             mSensorManager.registerListener(mSensorListener,
 872                     SensorManager.SENSOR_ACCELEROMETER,
 873                     SensorManager.SENSOR_DELAY_FASTEST);
 874         } else {
 875             mSensorManager = null;
 876         }
 877     }
 878
 879     /**
 880      * Since the actual title bar is embedded in the WebView, and removing it
 881      * would change its appearance, create a temporary title bar to go at
 882      * the top of the screen while the menu is open.
 883      */
 884     private TitleBar mFakeTitleBar;
 885
 886     /**
 887      * Holder for the fake title bar.  It will have a foreground shadow, as well
 888      * as a white background, so the fake title bar looks like the real one.
 889      */
 890     private ViewGroup mFakeTitleBarHolder;
 891
 892     /**
 893      * Layout parameters for the fake title bar within mFakeTitleBarHolder
 894      */
 895     private FrameLayout.LayoutParams mFakeTitleBarParams
 896             = new FrameLayout.LayoutParams(
 897             ViewGroup.LayoutParams.FILL_PARENT,
 898             ViewGroup.LayoutParams.WRAP_CONTENT);
 899     /**
 900      * Keeps track of whether the options menu is open.  This is important in
 901      * determining whether to show or hide the title bar overlay.
 902      */
 903     private boolean mOptionsMenuOpen;
 904
 905     /**
 906      * Only meaningful when mOptionsMenuOpen is true.  This variable keeps track
 907      * of whether the configuration has changed.  The first onMenuOpened call
 908      * after a configuration change is simply a reopening of the same menu
 909      * (i.e. mIconView did not change).
 910      */
 911     private boolean mConfigChanged;
 912
 913     /**
 914      * Whether or not the options menu is in its smaller, icon menu form.  When
 915      * true, we want the title bar overlay to be up.  When false, we do not.
 916      * Only meaningful if mOptionsMenuOpen is true.
 917      */
 918     private boolean mIconView;
 919
 920     @Override
 921     public boolean onMenuOpened(int featureId, Menu menu) {
 922         if (Window.FEATURE_OPTIONS_PANEL == featureId) {
 923             if (mOptionsMenuOpen) {
 924                 if (mConfigChanged) {
 925                     // We do not need to make any changes to the state of the
 926                     // title bar, since the only thing that happened was a
 927                     // change in orientation
 928                     mConfigChanged = false;
 929                 } else {
 930                     if (mIconView) {
 931                         // Switching the menu to expanded view, so hide the
 932                         // title bar.
 933                         hideFakeTitleBar();
 934                         mIconView = false;
 935                     } else {
 936                         // Switching the menu back to icon view, so show the
 937                         // title bar once again.
 938                         showFakeTitleBar();
 939                         mIconView = true;
 940                     }
 941                 }
 942             } else {
 943                 // The options menu is closed, so open it, and show the title
 944                 showFakeTitleBar();
 945                 mOptionsMenuOpen = true;
 946                 mConfigChanged = false;
 947                 mIconView = true;
 948             }
 949         }
 950         return true;
 951     }
 952
 953     private void showFakeTitleBar() {
 954         if (mFakeTitleBar == null && mActiveTabsPage == null
 955                 && !mActivityInPause) {
 956             final WebView webView = getTopWindow();
 957             mFakeTitleBar = new TitleBar(this);
 958             mFakeTitleBar.setTitleAndUrl(null, webView.getUrl());
 959             mFakeTitleBar.setProgress(webView.getProgress());
 960             mFakeTitleBar.setFavicon(webView.getFavicon());
 961             updateLockIconToLatest();
 962
 963             WindowManager manager
 964                     = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
 965
 966             // Add the title bar to the window manager so it can receive touches
 967             // while the menu is up
 968             WindowManager.LayoutParams params
 969                     = new WindowManager.LayoutParams(
 970                     ViewGroup.LayoutParams.FILL_PARENT,
 971                     ViewGroup.LayoutParams.WRAP_CONTENT,
 972                     WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL,
 973                     WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
 974                     PixelFormat.OPAQUE);
 975             params.gravity = Gravity.TOP;
 976             WebView mainView = mTabControl.getCurrentWebView();
 977             params.windowAnimations = mainView == null
 978                     || mainView.getScrollY() != 0
 979                     ? com.android.internal.R.style.Animation_DropDownDown : 0;
 980             // XXX : Without providing an offset, the fake title bar will be
 981             // placed underneath the status bar.  Use the global visible rect
 982             // of mBrowserFrameLayout to determine the bottom of the status bar
 983             Rect rectangle = new Rect();
 984             mBrowserFrameLayout.getGlobalVisibleRect(rectangle);
 985             params.y = rectangle.top;
 986             // Add a holder for the title bar.  It is a FrameLayout, which
 987             // allows it to have an overlay shadow.  It also has a white
 988             // background, which is the same as the background when it is
 989             // placed in a WebView.
 990             if (mFakeTitleBarHolder == null) {
 991                 mFakeTitleBarHolder = (ViewGroup) LayoutInflater.from(this)
 992                     .inflate(R.layout.title_bar_bg, null);
 993             }
 994             mFakeTitleBarHolder.addView(mFakeTitleBar, mFakeTitleBarParams);
 995             manager.addView(mFakeTitleBarHolder, params);
 996         }
 997     }
 998
 999     @Override
1000     public void onOptionsMenuClosed(Menu menu) {
1001         mOptionsMenuOpen = false;
1002         if (!mInLoad) {
1003             hideFakeTitleBar();
1004         } else if (!mIconView) {
1005             // The page is currently loading, and we are in expanded mode, so
1006             // we were not showing the menu.  Show it once again.  It will be
1007             // removed when the page finishes.
1008             showFakeTitleBar();
1009         }
1010     }
1011     private void hideFakeTitleBar() {
1012         if (mFakeTitleBar == null) return;
1013         WindowManager manager
1014                     = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
1015         mFakeTitleBarHolder.removeView(mFakeTitleBar);
1016         manager.removeView(mFakeTitleBarHolder);
1017         mFakeTitleBar = null;
1018     }
1019
1020     /**
1021      *  onSaveInstanceState(Bundle map)
1022      *  onSaveInstanceState is called right before onStop(). The map contains
1023      *  the saved state.
1024      */
1025     @Override protected void onSaveInstanceState(Bundle outState) {
1026         if (LOGV_ENABLED) {
1027             Log.v(LOGTAG, "BrowserActivity.onSaveInstanceState: this=" + this);
1028         }
1029         // the default implementation requires each view to have an id. As the
1030         // browser handles the state itself and it doesn't use id for the views,
1031         // don't call the default implementation. Otherwise it will trigger the
1032         // warning like this, "couldn't save which view has focus because the
1033         // focused view XXX has no id".
1034
1035         // Save all the tabs
1036         mTabControl.saveState(outState);
1037     }
1038
1039     @Override protected void onPause() {
1040         super.onPause();
1041
1042         if (mActivityInPause) {
1043             Log.e(LOGTAG, "BrowserActivity is already paused.");
1044             return;
1045         }
1046
1047         mTabControl.pauseCurrentTab();
1048         mActivityInPause = true;
1049         if (mTabControl.getCurrentIndex() >= 0 && !pauseWebViewTimers()) {
1050             mWakeLock.acquire();
1051             mHandler.sendMessageDelayed(mHandler
1052                     .obtainMessage(RELEASE_WAKELOCK), WAKELOCK_TIMEOUT);
1053         }
1054
1055         // Clear the credentials toast if it is up
1056         if (mCredsDlg != null && mCredsDlg.isShowing()) {
1057             mCredsDlg.dismiss();
1058         }
1059         mCredsDlg = null;
1060
1061         // FIXME: This removes the active tabs page and resets the menu to
1062         // MAIN_MENU.  A better solution might be to do this work in onNewIntent
1063         // but then we would need to save it in onSaveInstanceState and restore
1064         // it in onCreate/onRestoreInstanceState
1065         if (mActiveTabsPage != null) {
1066             removeActiveTabPage(true);
1067         }
1068
1069         cancelStopToast();
1070
1071         // unregister network state listener
1072         unregisterReceiver(mNetworkStateIntentReceiver);
1073         WebView.disablePlatformNotifications();
1074
1075         if (mSensorManager != null) {
1076             mSensorManager.unregisterListener(mSensorListener);
1077         }
1078     }
1079
1080     @Override protected void onDestroy() {
1081         if (LOGV_ENABLED) {
1082             Log.v(LOGTAG, "BrowserActivity.onDestroy: this=" + this);
1083         }
1084         super.onDestroy();
1085         // Remove the current tab and sub window
1086         TabControl.Tab t = mTabControl.getCurrentTab();
1087         if (t != null) {
1088             dismissSubWindow(t);
1089             removeTabFromContentView(t);
1090         }
1091         // Destroy all the tabs
1092         mTabControl.destroy();
1093         WebIconDatabase.getInstance().close();
1094         if (mGlsConnection != null) {
1095             unbindService(mGlsConnection);
1096             mGlsConnection = null;
1097         }
1098
1099         //
1100         // stop MASF proxy service
1101         //
1102         //Intent proxyServiceIntent = new Intent();
1103         //proxyServiceIntent.setComponent
1104         //   (new ComponentName(
1105         //        "com.android.masfproxyservice",
1106         //        "com.android.masfproxyservice.MasfProxyService"));
1107         //stopService(proxyServiceIntent);
1108
1109         unregisterReceiver(mPackageInstallationReceiver);
1110     }
1111
1112     @Override
1113     public void onConfigurationChanged(Configuration newConfig) {
1114         mConfigChanged = true;
1115         super.onConfigurationChanged(newConfig);
1116
1117         if (mPageInfoDialog != null) {
1118             mPageInfoDialog.dismiss();
1119             showPageInfo(
1120                 mPageInfoView,
1121                 mPageInfoFromShowSSLCertificateOnError.booleanValue());
1122         }
1123         if (mSSLCertificateDialog != null) {
1124             mSSLCertificateDialog.dismiss();
1125             showSSLCertificate(
1126                 mSSLCertificateView);
1127         }
1128         if (mSSLCertificateOnErrorDialog != null) {
1129             mSSLCertificateOnErrorDialog.dismiss();
1130             showSSLCertificateOnError(
1131                 mSSLCertificateOnErrorView,
1132                 mSSLCertificateOnErrorHandler,
1133                 mSSLCertificateOnErrorError);
1134         }
1135         if (mHttpAuthenticationDialog != null) {
1136             String title = ((TextView) mHttpAuthenticationDialog
1137                     .findViewById(com.android.internal.R.id.alertTitle)).getText()
1138                     .toString();
1139             String name = ((TextView) mHttpAuthenticationDialog
1140                     .findViewById(R.id.username_edit)).getText().toString();
1141             String password = ((TextView) mHttpAuthenticationDialog
1142                     .findViewById(R.id.password_edit)).getText().toString();
1143             int focusId = mHttpAuthenticationDialog.getCurrentFocus()
1144                     .getId();
1145             mHttpAuthenticationDialog.dismiss();
1146             showHttpAuthentication(mHttpAuthHandler, null, null, title,
1147                     name, password, focusId);
1148         }
1149         if (mFindDialog != null && mFindDialog.isShowing()) {
1150             mFindDialog.onConfigurationChanged(newConfig);
1151         }
1152     }
1153
1154     @Override public void onLowMemory() {
1155         super.onLowMemory();
1156         mTabControl.freeMemory();
1157     }
1158
1159     private boolean resumeWebViewTimers() {
1160         if ((!mActivityInPause && !mPageStarted) ||
1161                 (mActivityInPause && mPageStarted)) {
1162             CookieSyncManager.getInstance().startSync();
1163             WebView w = mTabControl.getCurrentWebView();
1164             if (w != null) {
1165                 w.resumeTimers();
1166             }
1167             return true;
1168         } else {
1169             return false;
1170         }
1171     }
1172
1173     private boolean pauseWebViewTimers() {
1174         if (mActivityInPause && !mPageStarted) {
1175             CookieSyncManager.getInstance().stopSync();
1176             WebView w = mTabControl.getCurrentWebView();
1177             if (w != null) {
1178                 w.pauseTimers();
1179             }
1180             return true;
1181         } else {
1182             return false;
1183         }
1184     }
1185
1186     // FIXME: Do we want to call this when loading google for the first time?
1187     /*
1188      * This function is called when we are launching for the first time. We
1189      * are waiting for the login credentials before loading Google home
1190      * pages. This way the user will be logged in straight away.
1191      */
1192     private void waitForCredentials() {
1193         // Show a toast
1194         mCredsDlg = new ProgressDialog(this);
1195         mCredsDlg.setIndeterminate(true);
1196         mCredsDlg.setMessage(getText(R.string.retrieving_creds_dlg_msg));
1197         // If the user cancels the operation, then cancel the Google
1198         // Credentials request.
1199         mCredsDlg.setCancelMessage(mHandler.obtainMessage(CANCEL_CREDS_REQUEST));
1200         mCredsDlg.show();
1201
1202         // We set a timeout for the retrieval of credentials in onResume()
1203         // as that is when we have freed up some CPU time to get
1204         // the login credentials.
1205     }
1206
1207     /*
1208      * If we have received the credentials or we have timed out and we are
1209      * showing the credentials dialog, then it is time to move on.
1210      */
1211     private void resumeAfterCredentials() {
1212         if (mCredsDlg == null) {
1213             return;
1214         }
1215
1216         // Clear the toast
1217         if (mCredsDlg.isShowing()) {
1218             mCredsDlg.dismiss();
1219         }
1220         mCredsDlg = null;
1221
1222         // Clear any pending timeout
1223         mHandler.removeMessages(CANCEL_CREDS_REQUEST);
1224
1225         // Load the page
1226         WebView w = mTabControl.getCurrentWebView();
1227         if (w != null) {
1228             w.loadUrl(mSettings.getHomePage());
1229         }
1230
1231         // Update the settings, need to do this last as it can take a moment
1232         // to persist the settings. In the mean time we could be loading
1233         // content.
1234         mSettings.setLoginInitialized(this);
1235     }
1236
1237     // Open the icon database and retain all the icons for visited sites.
1238     private void retainIconsOnStartup() {
1239         final WebIconDatabase db = WebIconDatabase.getInstance();
1240         db.open(getDir("icons", 0).getPath());
1241         try {
1242             Cursor c = Browser.getAllBookmarks(mResolver);
1243             if (!c.moveToFirst()) {
1244                 c.deactivate();
1245                 return;
1246             }
1247             int urlIndex = c.getColumnIndex(Browser.BookmarkColumns.URL);
1248             do {
1249                 String url = c.getString(urlIndex);
1250                 db.retainIconForPageUrl(url);
1251             } while (c.moveToNext());
1252             c.deactivate();
1253         } catch (IllegalStateException e) {
1254             Log.e(LOGTAG, "retainIconsOnStartup", e);
1255         }
1256     }
1257
1258     // Helper method for getting the top window.
1259     WebView getTopWindow() {
1260         return mTabControl.getCurrentTopWebView();
1261     }
1262
1263     @Override
1264     public boolean onCreateOptionsMenu(Menu menu) {
1265         super.onCreateOptionsMenu(menu);
1266
1267         MenuInflater inflater = getMenuInflater();
1268         inflater.inflate(R.menu.browser, menu);
1269         mMenu = menu;
1270         updateInLoadMenuItems();
1271         return true;
1272     }
1273
1274     /**
1275      * As the menu can be open when loading state changes
1276      * we must manually update the state of the stop/reload menu
1277      * item
1278      */
1279     private void updateInLoadMenuItems() {
1280         if (mMenu == null) {
1281             return;
1282         }
1283         MenuItem src = mInLoad ?
1284                 mMenu.findItem(R.id.stop_menu_id):
1285                     mMenu.findItem(R.id.reload_menu_id);
1286         MenuItem dest = mMenu.findItem(R.id.stop_reload_menu_id);
1287         dest.setIcon(src.getIcon());
1288         dest.setTitle(src.getTitle());
1289     }
1290
1291     @Override
1292     public boolean onContextItemSelected(MenuItem item) {
1293         // chording is not an issue with context menus, but we use the same
1294         // options selector, so set mCanChord to true so we can access them.
1295         mCanChord = true;
1296         int id = item.getItemId();
1297         final WebView webView = getTopWindow();
1298         if (null == webView) {
1299             return false;
1300         }
1301         final HashMap hrefMap = new HashMap();
1302         hrefMap.put("webview", webView);
1303         final Message msg = mHandler.obtainMessage(
1304                 FOCUS_NODE_HREF, id, 0, hrefMap);
1305         switch (id) {
1306             // -- Browser context menu
1307             case R.id.open_context_menu_id:
1308             case R.id.open_newtab_context_menu_id:
1309             case R.id.bookmark_context_menu_id:
1310             case R.id.save_link_context_menu_id:
1311             case R.id.share_link_context_menu_id:
1312             case R.id.copy_link_context_menu_id:
1313                 webView.requestFocusNodeHref(msg);
1314                 break;
1315
1316             default:
1317                 // For other context menus
1318                 return onOptionsItemSelected(item);
1319         }
1320         mCanChord = false;
1321         return true;
1322     }
1323
1324     private Bundle createGoogleSearchSourceBundle(String source) {
1325         Bundle bundle = new Bundle();
1326         bundle.putString(SearchManager.SOURCE, source);
1327         return bundle;
1328     }
1329
1330     /**
1331      * Overriding this to insert a local information bundle
1332      */
1333     @Override
1334     public boolean onSearchRequested() {
1335         if (mOptionsMenuOpen) closeOptionsMenu();
1336         String url = (getTopWindow() == null) ? null : getTopWindow().getUrl();
1337         startSearch(mSettings.getHomePage().equals(url) ? null : url, true,
1338                 createGoogleSearchSourceBundle(GOOGLE_SEARCH_SOURCE_SEARCHKEY), false);
1339         return true;
1340     }
1341
1342     @Override
1343     public void startSearch(String initialQuery, boolean selectInitialQuery,
1344             Bundle appSearchData, boolean globalSearch) {
1345         if (appSearchData == null) {
1346             appSearchData = createGoogleSearchSourceBundle(GOOGLE_SEARCH_SOURCE_TYPE);
1347         }
1348         super.startSearch(initialQuery, selectInitialQuery, appSearchData, globalSearch);
1349     }
1350
1351     /**
1352      * Switch tabs.  Called by the TitleBarSet when sliding the title bar
1353      * results in changing tabs.
1354      * @param index Index of the tab to change to, as defined by
1355      *              mTabControl.getTabIndex(Tab t).
1356      * @return boolean True if we successfully switched to a different tab.  If
1357      *                 the indexth tab is null, or if that tab is the same as
1358      *                 the current one, return false.
1359      */
1360     /* package */ boolean switchToTab(int index) {
1361         TabControl.Tab tab = mTabControl.getTab(index);
1362         TabControl.Tab currentTab = mTabControl.getCurrentTab();
1363         if (tab == null || tab == currentTab) {
1364             return false;
1365         }
1366         if (currentTab != null) {
1367             // currentTab may be null if it was just removed.  In that case,
1368             // we do not need to remove it
1369             removeTabFromContentView(currentTab);
1370         }
1371         mTabControl.setCurrentTab(tab);
1372         attachTabToContentView(tab);
1373         resetTitleIconAndProgress();
1374         updateLockIconToLatest();
1375         return true;
1376     }
1377
1378     /* package */ TabControl.Tab openTabToHomePage() {
1379         return openTabAndShow(mSettings.getHomePage(), false, null);
1380     }
1381
1382     /* package */ void closeCurrentWindow() {
1383         final TabControl.Tab current = mTabControl.getCurrentTab();
1384         if (mTabControl.getTabCount() == 1) {
1385             // This is the last tab.  Open a new one, with the home
1386             // page and close the current one.
1387             TabControl.Tab newTab = openTabToHomePage();
1388             closeTab(current);
1389             return;
1390         }
1391         final TabControl.Tab parent = current.getParentTab();
1392         int indexToShow = -1;
1393         if (parent != null) {
1394             indexToShow = mTabControl.getTabIndex(parent);
1395         } else {
1396             final int currentIndex = mTabControl.getCurrentIndex();
1397             // Try to move to the tab to the right
1398             indexToShow = currentIndex + 1;
1399             if (indexToShow > mTabControl.getTabCount() - 1) {
1400                 // Try to move to the tab to the left
1401                 indexToShow = currentIndex - 1;
1402             }
1403         }
1404         if (switchToTab(indexToShow)) {
1405             // Close window
1406             closeTab(current);
1407         }
1408     }
1409
1410     private ActiveTabsPage mActiveTabsPage;
1411
1412     /**
1413      * Remove the active tabs page.
1414      * @param needToAttach If true, the active tabs page did not attach a tab
1415      *                     to the content view, so we need to do that here.
1416      */
1417     /* package */ void removeActiveTabPage(boolean needToAttach) {
1418         mContentView.removeView(mActiveTabsPage);
1419         mActiveTabsPage = null;
1420         mMenuState = R.id.MAIN_MENU;
1421         if (needToAttach) {
1422             attachTabToContentView(mTabControl.getCurrentTab());
1423         }
1424         getTopWindow().requestFocus();
1425     }
1426
1427     @Override
1428     public boolean onOptionsItemSelected(MenuItem item) {
1429         if (!mCanChord) {
1430             // The user has already fired a shortcut with this hold down of the
1431             // menu key.
1432             return false;
1433         }
1434         if (null == getTopWindow()) {
1435             return false;
1436         }
1437         if (mMenuIsDown) {
1438             // The shortcut action consumes the MENU. Even if it is still down,
1439             // it won't trigger the next shortcut action. In the case of the
1440             // shortcut action triggering a new activity, like Bookmarks, we
1441             // won't get onKeyUp for MENU. So it is important to reset it here.
1442             mMenuIsDown = false;
1443         }
1444         switch (item.getItemId()) {
1445             // -- Main menu
1446             case R.id.new_tab_menu_id:
1447                 openTabToHomePage();
1448                 break;
1449
1450             case R.id.goto_menu_id:
1451                 bookmarksOrHistoryPicker(false);
1452                 break;
1453
1454             case R.id.active_tabs_menu_id:
1455                 mActiveTabsPage = new ActiveTabsPage(this, mTabControl);
1456                 removeTabFromContentView(mTabControl.getCurrentTab());
1457                 hideFakeTitleBar();
1458                 mContentView.addView(mActiveTabsPage, COVER_SCREEN_PARAMS);
1459                 mActiveTabsPage.requestFocus();
1460                 mMenuState = EMPTY_MENU;
1461                 break;
1462
1463             case R.id.add_bookmark_menu_id:
1464                 Intent i = new Intent(BrowserActivity.this,
1465                         AddBookmarkPage.class);
1466                 WebView w = getTopWindow();
1467                 i.putExtra("url", w.getUrl());
1468                 i.putExtra("title", w.getTitle());
1469                 i.putExtra("touch_icon_url", w.getTouchIconUrl());
1470                 startActivity(i);
1471                 break;
1472
1473             case R.id.stop_reload_menu_id:
1474                 if (mInLoad) {
1475                     stopLoading();
1476                 } else {
1477                     getTopWindow().reload();
1478                 }
1479                 break;
1480
1481             case R.id.back_menu_id:
1482                 getTopWindow().goBack();
1483                 break;
1484
1485             case R.id.forward_menu_id:
1486                 getTopWindow().goForward();
1487                 break;
1488
1489             case R.id.close_menu_id:
1490                 // Close the subwindow if it exists.
1491                 if (mTabControl.getCurrentSubWindow() != null) {
1492                     dismissSubWindow(mTabControl.getCurrentTab());
1493                     break;
1494                 }
1495                 closeCurrentWindow();
1496                 break;
1497
1498             case R.id.homepage_menu_id:
1499                 TabControl.Tab current = mTabControl.getCurrentTab();
1500                 if (current != null) {
1501                     dismissSubWindow(current);
1502                     current.getWebView().loadUrl(mSettings.getHomePage());
1503                 }
1504                 break;
1505
1506             case R.id.preferences_menu_id:
1507                 Intent intent = new Intent(this,
1508                         BrowserPreferencesPage.class);
1509                 startActivityForResult(intent, PREFERENCES_PAGE);
1510                 break;
1511
1512             case R.id.find_menu_id:
1513                 if (null == mFindDialog) {
1514                     mFindDialog = new FindDialog(this);
1515                 }
1516                 mFindDialog.setWebView(getTopWindow());
1517                 mFindDialog.show();
1518                 mMenuState = EMPTY_MENU;
1519                 break;
1520
1521             case R.id.select_text_id:
1522                 getTopWindow().emulateShiftHeld();
1523                 break;
1524             case R.id.page_info_menu_id:
1525                 showPageInfo(mTabControl.getCurrentTab(), false);
1526                 break;
1527
1528             case R.id.classic_history_menu_id:
1529                 bookmarksOrHistoryPicker(true);
1530                 break;
1531
1532             case R.id.share_page_menu_id:
1533                 Browser.sendString(this, getTopWindow().getUrl());
1534                 break;
1535
1536             case R.id.dump_nav_menu_id:
1537                 getTopWindow().debugDump();
1538                 break;
1539
1540             case R.id.zoom_in_menu_id:
1541                 getTopWindow().zoomIn();
1542                 break;
1543
1544             case R.id.zoom_out_menu_id:
1545                 getTopWindow().zoomOut();
1546                 break;
1547
1548             case R.id.view_downloads_menu_id:
1549                 viewDownloads(null);
1550                 break;
1551
1552             case R.id.window_one_menu_id:
1553             case R.id.window_two_menu_id:
1554             case R.id.window_three_menu_id:
1555             case R.id.window_four_menu_id:
1556             case R.id.window_five_menu_id:
1557             case R.id.window_six_menu_id:
1558             case R.id.window_seven_menu_id:
1559             case R.id.window_eight_menu_id:
1560                 {
1561                     int menuid = item.getItemId();
1562                     for (int id = 0; id < WINDOW_SHORTCUT_ID_ARRAY.length; id++) {
1563                         if (WINDOW_SHORTCUT_ID_ARRAY[id] == menuid) {
1564                             TabControl.Tab desiredTab = mTabControl.getTab(id);
1565                             if (desiredTab != null &&
1566                                     desiredTab != mTabControl.getCurrentTab()) {
1567                                 switchToTab(id);
1568                             }
1569                             break;
1570                         }
1571                     }
1572                 }
1573                 break;
1574
1575             default:
1576                 if (!super.onOptionsItemSelected(item)) {
1577                     return false;
1578                 }
1579                 // Otherwise fall through.
1580         }
1581         mCanChord = false;
1582         return true;
1583     }
1584
1585     public void closeFind() {
1586         mMenuState = R.id.MAIN_MENU;
1587     }
1588
1589     @Override public boolean onPrepareOptionsMenu(Menu menu)
1590     {
1591         // This happens when the user begins to hold down the menu key, so
1592         // allow them to chord to get a shortcut.
1593         mCanChord = true;
1594         // Note: setVisible will decide whether an item is visible; while
1595         // setEnabled() will decide whether an item is enabled, which also means
1596         // whether the matching shortcut key will function.
1597         super.onPrepareOptionsMenu(menu);
1598         switch (mMenuState) {
1599             case EMPTY_MENU:
1600                 if (mCurrentMenuState != mMenuState) {
1601                     menu.setGroupVisible(R.id.MAIN_MENU, false);
1602                     menu.setGroupEnabled(R.id.MAIN_MENU, false);
1603                     menu.setGroupEnabled(R.id.MAIN_SHORTCUT_MENU, false);
1604                 }
1605                 break;
1606             default:
1607                 if (mCurrentMenuState != mMenuState) {
1608                     menu.setGroupVisible(R.id.MAIN_MENU, true);
1609                     menu.setGroupEnabled(R.id.MAIN_MENU, true);
1610                     menu.setGroupEnabled(R.id.MAIN_SHORTCUT_MENU, true);
1611                 }
1612                 final WebView w = getTopWindow();
1613                 boolean canGoBack = false;
1614                 boolean canGoForward = false;
1615                 boolean isHome = false;
1616                 if (w != null) {
1617                     canGoBack = w.canGoBack();
1618                     canGoForward = w.canGoForward();
1619                     isHome = mSettings.getHomePage().equals(w.getUrl());
1620                 }
1621                 final MenuItem back = menu.findItem(R.id.back_menu_id);
1622                 back.setEnabled(canGoBack);
1623
1624                 final MenuItem home = menu.findItem(R.id.homepage_menu_id);
1625                 home.setEnabled(!isHome);
1626
1627                 menu.findItem(R.id.forward_menu_id)
1628                         .setEnabled(canGoForward);
1629
1630                 menu.findItem(R.id.new_tab_menu_id).setEnabled(
1631                         mTabControl.getTabCount() < TabControl.MAX_TABS);
1632
1633                 // decide whether to show the share link option
1634                 PackageManager pm = getPackageManager();
1635                 Intent send = new Intent(Intent.ACTION_SEND);
1636                 send.setType("text/plain");
1637                 ResolveInfo ri = pm.resolveActivity(send, PackageManager.MATCH_DEFAULT_ONLY);
1638                 menu.findItem(R.id.share_page_menu_id).setVisible(ri != null);
1639
1640                 boolean isNavDump = mSettings.isNavDump();
1641                 final MenuItem nav = menu.findItem(R.id.dump_nav_menu_id);
1642                 nav.setVisible(isNavDump);
1643                 nav.setEnabled(isNavDump);
1644                 break;
1645         }
1646         mCurrentMenuState = mMenuState;
1647         return true;
1648     }
1649
1650     @Override
1651     public void onCreateContextMenu(ContextMenu menu, View v,
1652             ContextMenuInfo menuInfo) {
1653         WebView webview = (WebView) v;
1654         WebView.HitTestResult result = webview.getHitTestResult();
1655         if (result == null) {
1656             return;
1657         }
1658
1659         int type = result.getType();
1660         if (type == WebView.HitTestResult.UNKNOWN_TYPE) {
1661             Log.w(LOGTAG,
1662                     "We should not show context menu when nothing is touched");
1663             return;
1664         }
1665         if (type == WebView.HitTestResult.EDIT_TEXT_TYPE) {
1666             // let TextView handles context menu
1667             return;
1668         }
1669
1670         // Note, http://b/issue?id=1106666 is requesting that
1671         // an inflated menu can be used again. This is not available
1672         // yet, so inflate each time (yuk!)
1673         MenuInflater inflater = getMenuInflater();
1674         inflater.inflate(R.menu.browsercontext, menu);
1675
1676         // Show the correct menu group
1677         String extra = result.getExtra();
1678         menu.setGroupVisible(R.id.PHONE_MENU,
1679                 type == WebView.HitTestResult.PHONE_TYPE);
1680         menu.setGroupVisible(R.id.EMAIL_MENU,
1681                 type == WebView.HitTestResult.EMAIL_TYPE);
1682         menu.setGroupVisible(R.id.GEO_MENU,
1683                 type == WebView.HitTestResult.GEO_TYPE);
1684         menu.setGroupVisible(R.id.IMAGE_MENU,
1685                 type == WebView.HitTestResult.IMAGE_TYPE
1686                 || type == WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE);
1687         menu.setGroupVisible(R.id.ANCHOR_MENU,
1688                 type == WebView.HitTestResult.SRC_ANCHOR_TYPE
1689                 || type == WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE);
1690
1691         // Setup custom handling depending on the type
1692         switch (type) {
1693             case WebView.HitTestResult.PHONE_TYPE:
1694                 menu.setHeaderTitle(Uri.decode(extra));
1695                 menu.findItem(R.id.dial_context_menu_id).setIntent(
1696                         new Intent(Intent.ACTION_VIEW, Uri
1697                                 .parse(WebView.SCHEME_TEL + extra)));
1698                 Intent addIntent = new Intent(Intent.ACTION_INSERT_OR_EDIT);
1699                 addIntent.putExtra(Insert.PHONE, Uri.decode(extra));
1700                 addIntent.setType(Contacts.People.CONTENT_ITEM_TYPE);
1701                 menu.findItem(R.id.add_contact_context_menu_id).setIntent(
1702                         addIntent);
1703                 menu.findItem(R.id.copy_phone_context_menu_id).setOnMenuItemClickListener(
1704                         new Copy(extra));
1705                 break;
1706
1707             case WebView.HitTestResult.EMAIL_TYPE:
1708                 menu.setHeaderTitle(extra);
1709                 menu.findItem(R.id.email_context_menu_id).setIntent(
1710                         new Intent(Intent.ACTION_VIEW, Uri
1711                                 .parse(WebView.SCHEME_MAILTO + extra)));
1712                 menu.findItem(R.id.copy_mail_context_menu_id).setOnMenuItemClickListener(
1713                         new Copy(extra));
1714                 break;
1715
1716             case WebView.HitTestResult.GEO_TYPE:
1717                 menu.setHeaderTitle(extra);
1718                 menu.findItem(R.id.map_context_menu_id).setIntent(
1719                         new Intent(Intent.ACTION_VIEW, Uri
1720                                 .parse(WebView.SCHEME_GEO
1721                                         + URLEncoder.encode(extra))));
1722                 menu.findItem(R.id.copy_geo_context_menu_id).setOnMenuItemClickListener(
1723                         new Copy(extra));
1724                 break;
1725
1726             case WebView.HitTestResult.SRC_ANCHOR_TYPE:
1727             case WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE:
1728                 TextView titleView = (TextView) LayoutInflater.from(this)
1729                         .inflate(android.R.layout.browser_link_context_header,
1730                         null);
1731                 titleView.setText(extra);
1732                 menu.setHeaderView(titleView);
1733                 // decide whether to show the open link in new tab option
1734                 menu.findItem(R.id.open_newtab_context_menu_id).setVisible(
1735                         mTabControl.getTabCount() < TabControl.MAX_TABS);
1736                 PackageManager pm = getPackageManager();
1737                 Intent send = new Intent(Intent.ACTION_SEND);
1738                 send.setType("text/plain");
1739                 ResolveInfo ri = pm.resolveActivity(send, PackageManager.MATCH_DEFAULT_ONLY);
1740                 menu.findItem(R.id.share_link_context_menu_id).setVisible(ri != null);
1741                 if (type == WebView.HitTestResult.SRC_ANCHOR_TYPE) {
1742                     break;
1743                 }
1744                 // otherwise fall through to handle image part
1745             case WebView.HitTestResult.IMAGE_TYPE:
1746                 if (type == WebView.HitTestResult.IMAGE_TYPE) {
1747                     menu.setHeaderTitle(extra);
1748                 }
1749                 menu.findItem(R.id.view_image_context_menu_id).setIntent(
1750                         new Intent(Intent.ACTION_VIEW, Uri.parse(extra)));
1751                 menu.findItem(R.id.download_context_menu_id).
1752                         setOnMenuItemClickListener(new Download(extra));
1753                 break;
1754
1755             default:
1756                 Log.w(LOGTAG, "We should not get here.");
1757                 break;
1758         }
1759     }
1760
1761     // Attach the given tab to the content view.
1762     // this should only be called for the current tab.
1763     private void attachTabToContentView(TabControl.Tab t) {
1764         // Attach the container that contains the main WebView and any other UI
1765         // associated with the tab.
1766         t.attachTabToContentView(mContentView);
1767
1768         if (mShouldShowErrorConsole) {
1769             ErrorConsoleView errorConsole = mTabControl.getCurrentErrorConsole(true);
1770             if (errorConsole.numberOfErrors() == 0) {
1771                 errorConsole.showConsole(ErrorConsoleView.SHOW_NONE);
1772             } else {
1773                 errorConsole.showConsole(ErrorConsoleView.SHOW_MINIMIZED);
1774             }
1775
1776             mErrorConsoleContainer.addView(errorConsole,
1777                     new LinearLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT,
1778                                                   ViewGroup.LayoutParams.WRAP_CONTENT));
1779         }
1780
1781         setLockIconType(t.getLockIconType());
1782         setPrevLockType(t.getPrevLockIconType());
1783
1784         // this is to match the code in removeTabFromContentView()
1785         if (!mPageStarted && t.getTopWindow().getProgress() < 100) {
1786             mPageStarted = true;
1787         }
1788
1789         WebView view = t.getWebView();
1790         view.setEmbeddedTitleBar(mTitleBar);
1791         // Request focus on the top window.
1792         t.getTopWindow().requestFocus();
1793     }
1794
1795     // Attach a sub window to the main WebView of the given tab.
1796     private void attachSubWindow(TabControl.Tab t) {
1797         t.attachSubWindow(mContentView);
1798         getTopWindow().requestFocus();
1799     }
1800
1801     // Remove the given tab from the content view.
1802     private void removeTabFromContentView(TabControl.Tab t) {
1803         // Remove the container that contains the main WebView.
1804         t.removeTabFromContentView(mContentView);
1805
1806         if (mTabControl.getCurrentErrorConsole(false) != null) {
1807             mErrorConsoleContainer.removeView(mTabControl.getCurrentErrorConsole(false));
1808         }
1809
1810         WebView view = t.getWebView();
1811         if (view != null) {
1812             view.setEmbeddedTitleBar(null);
1813         }
1814
1815         // unlike attachTabToContentView(), removeTabFromContentView() can be
1816         // called for the non-current tab. Need to add the check.
1817         if (t == mTabControl.getCurrentTab()) {
1818             t.setLockIconType(getLockIconType());
1819             t.setPrevLockIconType(getPrevLockType());
1820
1821             // this is not a perfect solution. But currently there is one
1822             // WebViewClient for all the WebView. if user switches from an
1823             // in-load window to an already loaded window, mPageStarted will not
1824             // be set to false. If user leaves the Browser, pauseWebViewTimers()
1825             // won't do anything and leaves the timer running even Browser is in
1826             // the background.
1827             if (mPageStarted) {
1828                 mPageStarted = false;
1829             }
1830         }
1831     }
1832
1833     // Remove the sub window if it exists. Also called by TabControl when the
1834     // user clicks the 'X' to dismiss a sub window.
1835     /* package */ void dismissSubWindow(TabControl.Tab t) {
1836         t.removeSubWindow(mContentView);
1837         // Tell the TabControl to dismiss the subwindow. This will destroy
1838         // the WebView.
1839         mTabControl.dismissSubWindow(t);
1840         getTopWindow().requestFocus();
1841     }
1842
1843     // A wrapper function of {@link #openTabAndShow(UrlData, boolean, String)}
1844     // that accepts url as string.
1845     private TabControl.Tab openTabAndShow(String url, boolean closeOnExit,
1846             String appId) {
1847         return openTabAndShow(new UrlData(url), closeOnExit, appId);
1848     }
1849
1850     // This method does a ton of stuff. It will attempt to create a new tab
1851     // if we haven't reached MAX_TABS. Otherwise it uses the current tab. If
1852     // url isn't null, it will load the given url.
1853     /* package */ TabControl.Tab openTabAndShow(UrlData urlData,
1854             boolean closeOnExit, String appId) {
1855         final boolean newTab = mTabControl.getTabCount() != TabControl.MAX_TABS;
1856         final TabControl.Tab currentTab = mTabControl.getCurrentTab();
1857         if (newTab) {
1858             final TabControl.Tab tab = mTabControl.createNewTab(
1859                     closeOnExit, appId, urlData.mUrl);
1860             WebView webview = tab.getWebView();
1861             // If the last tab was removed from the active tabs page, currentTab
1862             // will be null.
1863             if (currentTab != null) {
1864                 removeTabFromContentView(currentTab);
1865             }
1866             // We must set the new tab as the current tab to reflect the old
1867             // animation behavior.
1868             mTabControl.setCurrentTab(tab);
1869             attachTabToContentView(tab);
1870             if (!urlData.isEmpty()) {
1871                 urlData.loadIn(webview);
1872             }
1873             return tab;
1874         } else {
1875             // Get rid of the subwindow if it exists
1876             dismissSubWindow(currentTab);
1877             if (!urlData.isEmpty()) {
1878                 // Load the given url.
1879                 urlData.loadIn(currentTab.getWebView());
1880             }
1881         }
1882         return currentTab;
1883     }
1884
1885     private TabControl.Tab openTab(String url) {
1886         if (mSettings.openInBackground()) {
1887             TabControl.Tab t = mTabControl.createNewTab();
1888             if (t != null) {
1889                 WebView view = t.getWebView();
1890                 view.loadUrl(url);
1891             }
1892             return t;
1893         } else {
1894             return openTabAndShow(url, false, null);
1895         }
1896     }
1897
1898     private class Copy implements OnMenuItemClickListener {
1899         private CharSequence mText;
1900
1901         public boolean onMenuItemClick(MenuItem item) {
1902             copy(mText);
1903             return true;
1904         }
1905
1906         public Copy(CharSequence toCopy) {
1907             mText = toCopy;
1908         }
1909     }
1910
1911     private class Download implements OnMenuItemClickListener {
1912         private String mText;
1913
1914         public boolean onMenuItemClick(MenuItem item) {
1915             onDownloadStartNoStream(mText, null, null, null, -1);
1916             return true;
1917         }
1918
1919         public Download(String toDownload) {
1920             mText = toDownload;
1921         }
1922     }
1923
1924     private void copy(CharSequence text) {
1925         try {
1926             IClipboard clip = IClipboard.Stub.asInterface(ServiceManager.getService("clipboard"));
1927             if (clip != null) {
1928                 clip.setClipboardText(text);
1929             }
1930         } catch (android.os.RemoteException e) {
1931             Log.e(LOGTAG, "Copy failed", e);
1932         }
1933     }
1934
1935     /**
1936      * Resets the browser title-view to whatever it must be
1937      * (for example, if we had a loading error)
1938      * When we have a new page, we call resetTitle, when we
1939      * have to reset the titlebar to whatever it used to be
1940      * (for example, if the user chose to stop loading), we
1941      * call resetTitleAndRevertLockIcon.
1942      */
1943     /* package */ void resetTitleAndRevertLockIcon() {
1944         revertLockIcon();
1945         resetTitleIconAndProgress();
1946     }
1947
1948     /**
1949      * Reset the title, favicon, and progress.
1950      */
1951     private void resetTitleIconAndProgress() {
1952         WebView current = mTabControl.getCurrentWebView();
1953         if (current == null) {
1954             return;
1955         }
1956         resetTitleAndIcon(current);
1957         int progress = current.getProgress();
1958         mWebChromeClient.onProgressChanged(current, progress);
1959     }
1960
1961     // Reset the title and the icon based on the given item.
1962     private void resetTitleAndIcon(WebView view) {
1963         WebHistoryItem item = view.copyBackForwardList().getCurrentItem();
1964         if (item != null) {
1965             setUrlTitle(item.getUrl(), item.getTitle());
1966             setFavicon(item.getFavicon());
1967         } else {
1968             setUrlTitle(null, null);
1969             setFavicon(null);
1970         }
1971     }
1972
1973     /**
1974      * Sets a title composed of the URL and the title string.
1975      * @param url The URL of the site being loaded.
1976      * @param title The title of the site being loaded.
1977      */
1978     private void setUrlTitle(String url, String title) {
1979         mUrl = url;
1980         mTitle = title;
1981
1982         mTitleBar.setTitleAndUrl(title, url);
1983         if (mFakeTitleBar != null) {
1984             mFakeTitleBar.setTitleAndUrl(title, url);
1985         }
1986     }
1987
1988     /**
1989      * @param url The URL to build a title version of the URL from.
1990      * @return The title version of the URL or null if fails.
1991      * The title version of the URL can be either the URL hostname,
1992      * or the hostname with an "https://" prefix (for secure URLs),
1993      * or an empty string if, for example, the URL in question is a
1994      * file:// URL with no hostname.
1995      */
1996     /* package */ static String buildTitleUrl(String url) {
1997         String titleUrl = null;
1998
1999         if (url != null) {
2000             try {
2001                 // parse the url string
2002                 URL urlObj = new URL(url);
2003                 if (urlObj != null) {
2004                     titleUrl = "";
2005
2006                     String protocol = urlObj.getProtocol();
2007                     String host = urlObj.getHost();
2008
2009                     if (host != null && 0 < host.length()) {
2010                         titleUrl = host;
2011                         if (protocol != null) {
2012                             // if a secure site, add an "https://" prefix!
2013                             if (protocol.equalsIgnoreCase("https")) {
2014                                 titleUrl = protocol + "://" + host;
2015                             }
2016                         }
2017                     }
2018                 }
2019             } catch (MalformedURLException e) {}
2020         }
2021
2022         return titleUrl;
2023     }
2024
2025     // Set the favicon in the title bar.
2026     private void setFavicon(Bitmap icon) {
2027         mTitleBar.setFavicon(icon);
2028         if (mFakeTitleBar != null) {
2029             mFakeTitleBar.setFavicon(icon);
2030         }
2031     }
2032
2033     /**
2034      * Saves the current lock-icon state before resetting
2035      * the lock icon. If we have an error, we may need to
2036      * roll back to the previous state.
2037      */
2038     private void saveLockIcon() {
2039         mPrevLockType = mLockIconType;
2040     }
2041
2042     /**
2043      * Reverts the lock-icon state to the last saved state,
2044      * for example, if we had an error, and need to cancel
2045      * the load.
2046      */
2047     private void revertLockIcon() {
2048         mLockIconType = mPrevLockType;
2049
2050         if (LOGV_ENABLED) {
2051             Log.v(LOGTAG, "BrowserActivity.revertLockIcon:" +
2052                   " revert lock icon to " + mLockIconType);
2053         }
2054
2055         updateLockIconToLatest();
2056     }
2057
2058     /**
2059      * Close the tab, remove its associated title bar, and adjust mTabControl's
2060      * current tab to a valid value.
2061      */
2062     /* package */ void closeTab(TabControl.Tab t) {
2063         int currentIndex = mTabControl.getCurrentIndex();
2064         int removeIndex = mTabControl.getTabIndex(t);
2065         mTabControl.removeTab(t);
2066         if (currentIndex >= removeIndex && currentIndex != 0) {
2067             currentIndex--;
2068         }
2069         mTabControl.setCurrentTab(mTabControl.getTab(currentIndex));
2070     }
2071
2072     private void goBackOnePageOrQuit() {
2073         TabControl.Tab current = mTabControl.getCurrentTab();
2074         if (current == null) {
2075             /*
2076              * Instead of finishing the activity, simply push this to the back
2077              * of the stack and let ActivityManager to choose the foreground
2078              * activity. As BrowserActivity is singleTask, it will be always the
2079              * root of the task. So we can use either true or false for
2080              * moveTaskToBack().
2081              */
2082             moveTaskToBack(true);
2083         }
2084         WebView w = current.getWebView();
2085         if (w.canGoBack()) {
2086             w.goBack();
2087         } else {
2088             // Check to see if we are closing a window that was created by
2089             // another window. If so, we switch back to that window.
2090             TabControl.Tab parent = current.getParentTab();
2091             if (parent != null) {
2092                 switchToTab(mTabControl.getTabIndex(parent));
2093                 // Now we close the other tab
2094                 closeTab(current);
2095             } else {
2096                 if (current.closeOnExit()) {
2097                     // force mPageStarted to be false as we are going to either
2098                     // finish the activity or remove the tab. This will ensure
2099                     // pauseWebView() taking action.
2100                     mPageStarted = false;
2101                     if (mTabControl.getTabCount() == 1) {
2102                         finish();
2103                         return;
2104                     }
2105                     // call pauseWebViewTimers() now, we won't be able to call
2106                     // it in onPause() as the WebView won't be valid.
2107                     // Temporarily change mActivityInPause to be true as
2108                     // pauseWebViewTimers() will do nothing if mActivityInPause
2109                     // is false.
2110                     boolean savedState = mActivityInPause;
2111                     if (savedState) {
2112                         Log.e(LOGTAG, "BrowserActivity is already paused "
2113                                 + "while handing goBackOnePageOrQuit.");
2114                     }
2115                     mActivityInPause = true;
2116                     pauseWebViewTimers();
2117                     mActivityInPause = savedState;
2118                     removeTabFromContentView(current);
2119                     mTabControl.removeTab(current);
2120                 }
2121                 /*
2122                  * Instead of finishing the activity, simply push this to the back
2123                  * of the stack and let ActivityManager to choose the foreground
2124                  * activity. As BrowserActivity is singleTask, it will be always the
2125                  * root of the task. So we can use either true or false for
2126                  * moveTaskToBack().
2127                  */
2128                 moveTaskToBack(true);
2129             }
2130         }
2131     }
2132
2133     public KeyTracker.State onKeyTracker(int keyCode,
2134                                          KeyEvent event,
2135                                          KeyTracker.Stage stage,
2136                                          int duration) {
2137         // if onKeyTracker() is called after activity onStop()
2138         // because of accumulated key events,
2139         // we should ignore it as browser is not active any more.
2140         WebView topWindow = getTopWindow();
2141         if (topWindow == null && mCustomView == null)
2142             return KeyTracker.State.NOT_TRACKING;
2143
2144         if (keyCode == KeyEvent.KEYCODE_BACK) {
2145             // Check if a custom view is currently showing and, if it is, hide it.
2146             if (mCustomView != null) {
2147                 mWebChromeClient.onHideCustomView();
2148                 return KeyTracker.State.DONE_TRACKING;
2149             }
2150             if (stage == KeyTracker.Stage.LONG_REPEAT) {
2151                 bookmarksOrHistoryPicker(true);
2152                 return KeyTracker.State.DONE_TRACKING;
2153             } else if (stage == KeyTracker.Stage.UP) {
2154                 // FIXME: Currently, we do not have a notion of the
2155                 // history picker for the subwindow, but maybe we
2156                 // should?
2157                 WebView subwindow = mTabControl.getCurrentSubWindow();
2158                 if (subwindow != null) {
2159                     if (subwindow.canGoBack()) {
2160                         subwindow.goBack();
2161                     } else {
2162                         dismissSubWindow(mTabControl.getCurrentTab());
2163                     }
2164                 } else {
2165                     goBackOnePageOrQuit();
2166                 }
2167                 return KeyTracker.State.DONE_TRACKING;
2168             }
2169             return KeyTracker.State.KEEP_TRACKING;
2170         }
2171         return KeyTracker.State.NOT_TRACKING;
2172     }
2173
2174     @Override public boolean onKeyDown(int keyCode, KeyEvent event) {
2175         if (keyCode == KeyEvent.KEYCODE_MENU) {
2176             mMenuIsDown = true;
2177         } else if (mMenuIsDown) {
2178             // The default key mode is DEFAULT_KEYS_SEARCH_LOCAL. As the MENU is
2179             // still down, we don't want to trigger the search. Pretend to
2180             // consume the key and do nothing.
2181             return true;
2182         }
2183         boolean handled =  mKeyTracker.doKeyDown(keyCode, event);
2184         if (!handled) {
2185             switch (keyCode) {
2186                 case KeyEvent.KEYCODE_SPACE:
2187                     if (event.isShiftPressed()) {
2188                         getTopWindow().pageUp(false);
2189                     } else {
2190                         getTopWindow().pageDown(false);
2191                     }
2192                     handled = true;
2193                     break;
2194
2195                 default:
2196                     break;
2197             }
2198         }
2199         return handled || super.onKeyDown(keyCode, event);
2200     }
2201
2202     @Override public boolean onKeyUp(int keyCode, KeyEvent event) {
2203         if (keyCode == KeyEvent.KEYCODE_MENU) {
2204             mMenuIsDown = false;
2205         }
2206         return mKeyTracker.doKeyUp(keyCode, event) || super.onKeyUp(keyCode, event);
2207     }
2208
2209     /* package */ void stopLoading() {
2210         resetTitleAndRevertLockIcon();
2211         WebView w = getTopWindow();
2212         w.stopLoading();
2213         mWebViewClient.onPageFinished(w, w.getUrl());
2214
2215         cancelStopToast();
2216         mStopToast = Toast
2217                 .makeText(this, R.string.stopping, Toast.LENGTH_SHORT);
2218         mStopToast.show();
2219     }
2220
2221     private void cancelStopToast() {
2222         if (mStopToast != null) {
2223             mStopToast.cancel();
2224             mStopToast = null;
2225         }
2226     }
2227
2228     // called by a non-UI thread to post the message
2229     public void postMessage(int what, int arg1, int arg2, Object obj) {
2230         mHandler.sendMessage(mHandler.obtainMessage(what, arg1, arg2, obj));
2231     }
2232
2233     // public message ids
2234     public final static int LOAD_URL                = 1001;
2235     public final static int STOP_LOAD               = 1002;
2236
2237     // Message Ids
2238     private static final int FOCUS_NODE_HREF         = 102;
2239     private static final int CANCEL_CREDS_REQUEST    = 103;
2240     private static final int RELEASE_WAKELOCK        = 107;
2241
2242     // Private handler for handling javascript and saving passwords
2243     private Handler mHandler = new Handler() {
2244
2245         public void handleMessage(Message msg) {
2246             switch (msg.what) {
2247                 case FOCUS_NODE_HREF:
2248                     String url = (String) msg.getData().get("url");
2249                     if (url == null || url.length() == 0) {
2250                         break;
2251                     }
2252                     HashMap focusNodeMap = (HashMap) msg.obj;
2253                     WebView view = (WebView) focusNodeMap.get("webview");
2254                     // Only apply the action if the top window did not change.
2255                     if (getTopWindow() != view) {
2256                         break;
2257                     }
2258                     switch (msg.arg1) {
2259                         case R.id.open_context_menu_id:
2260                         case R.id.view_image_context_menu_id:
2261                             loadURL(getTopWindow(), url);
2262                             break;
2263                         case R.id.open_newtab_context_menu_id:
2264                             final TabControl.Tab parent = mTabControl
2265                                     .getCurrentTab();
2266                             final TabControl.Tab newTab = openTab(url);
2267                             if (newTab != parent) {
2268                                 parent.addChildTab(newTab);
2269                             }
2270                             break;
2271                         case R.id.bookmark_context_menu_id:
2272                             Intent intent = new Intent(BrowserActivity.this,
2273                                     AddBookmarkPage.class);
2274                             intent.putExtra("url", url);
2275                             startActivity(intent);
2276                             break;
2277                         case R.id.share_link_context_menu_id:
2278                             Browser.sendString(BrowserActivity.this, url);
2279                             break;
2280                         case R.id.copy_link_context_menu_id:
2281                             copy(url);
2282                             break;
2283                         case R.id.save_link_context_menu_id:
2284                         case R.id.download_context_menu_id:
2285                             onDownloadStartNoStream(url, null, null, null, -1);
2286                             break;
2287                     }
2288                     break;
2289
2290                 case LOAD_URL:
2291                     loadURL(getTopWindow(), (String) msg.obj);
2292                     break;
2293
2294                 case STOP_LOAD:
2295                     stopLoading();
2296                     break;
2297
2298                 case CANCEL_CREDS_REQUEST:
2299                     resumeAfterCredentials();
2300                     break;
2301
2302                 case RELEASE_WAKELOCK:
2303                     if (mWakeLock.isHeld()) {
2304                         mWakeLock.release();
2305                     }
2306                     break;
2307             }
2308         }
2309     };
2310
2311     private void updateScreenshot(WebView view) {
2312         // If this is a bookmarked site, add a screenshot to the database.
2313         // FIXME: When should we update?  Every time?
2314         // FIXME: Would like to make sure there is actually something to
2315         // draw, but the API for that (WebViewCore.pictureReady()) is not
2316         // currently accessible here.
2317         ContentResolver cr = getContentResolver();
2318         final Cursor c = BrowserBookmarksAdapter.queryBookmarksForUrl(
2319                 cr, view.getOriginalUrl(), view.getUrl(), false);
2320         if (c != null) {
2321             boolean succeed = c.moveToFirst();
2322             ContentValues values = null;
2323             while (succeed) {
2324                 if (values == null) {
2325                     final ByteArrayOutputStream os
2326                             = new ByteArrayOutputStream();
2327                     Picture thumbnail = view.capturePicture();
2328                     // Keep width and height in sync with BrowserBookmarksPage
2329                     // and bookmark_thumb
2330                     Bitmap bm = Bitmap.createBitmap(100, 80,
2331                             Bitmap.Config.ARGB_4444);
2332                     Canvas canvas = new Canvas(bm);
2333                     // May need to tweak these values to determine what is the
2334                     // best scale factor
2335                     canvas.scale(.5f, .5f);
2336                     thumbnail.draw(canvas);
2337                     bm.compress(Bitmap.CompressFormat.PNG, 100, os);
2338                     values = new ContentValues();
2339                     values.put(Browser.BookmarkColumns.THUMBNAIL,
2340                             os.toByteArray());
2341                 }
2342                 cr.update(ContentUris.withAppendedId(Browser.BOOKMARKS_URI,
2343                         c.getInt(0)), values, null, null);
2344                 succeed = c.moveToNext();
2345             }
2346             c.close();
2347         }
2348     }
2349
2350     // -------------------------------------------------------------------------
2351     // WebViewClient implementation.
2352     //-------------------------------------------------------------------------
2353
2354     // Use in overrideUrlLoading
2355     /* package */ final static String SCHEME_WTAI = "wtai://wp/";
2356     /* package */ final static String SCHEME_WTAI_MC = "wtai://wp/mc;";
2357     /* package */ final static String SCHEME_WTAI_SD = "wtai://wp/sd;";
2358     /* package */ final static String SCHEME_WTAI_AP = "wtai://wp/ap;";
2359
2360     /* package */ WebViewClient getWebViewClient() {
2361         return mWebViewClient;
2362     }
2363
2364     private void updateIcon(WebView view, Bitmap icon) {
2365         if (icon != null) {
2366             BrowserBookmarksAdapter.updateBookmarkFavicon(mResolver,
2367                     view, icon);
2368         }
2369         setFavicon(icon);
2370     }
2371
2372     private final WebViewClient mWebViewClient = new WebViewClient() {
2373         @Override
2374         public void onPageStarted(WebView view, String url, Bitmap favicon) {
2375             resetLockIcon(url);
2376             setUrlTitle(url, null);
2377
2378             ErrorConsoleView errorConsole = mTabControl.getCurrentErrorConsole(false);
2379             if (errorConsole != null) {
2380                 errorConsole.clearErrorMessages();
2381                 if (mShouldShowErrorConsole) {
2382                     errorConsole.showConsole(ErrorConsoleView.SHOW_NONE);
2383                 }
2384             }
2385
2386             // Call updateIcon instead of setFavicon so the bookmark
2387             // database can be updated.
2388             updateIcon(view, favicon);
2389
2390             if (mSettings.isTracing()) {
2391                 String host;
2392                 try {
2393                     WebAddress uri = new WebAddress(url);
2394                     host = uri.mHost;
2395                 } catch (android.net.ParseException ex) {
2396                     host = "browser";
2397                 }
2398                 host = host.replace('.', '_');
2399                 host += ".trace";
2400                 mInTrace = true;
2401                 Debug.startMethodTracing(host, 20 * 1024 * 1024);
2402             }
2403
2404             // Performance probe
2405             if (false) {
2406                 mStart = SystemClock.uptimeMillis();
2407                 mProcessStart = Process.getElapsedCpuTime();
2408                 long[] sysCpu = new long[7];
2409                 if (Process.readProcFile("/proc/stat", SYSTEM_CPU_FORMAT, null,
2410                         sysCpu, null)) {
2411                     mUserStart = sysCpu[0] + sysCpu[1];
2412                     mSystemStart = sysCpu[2];
2413                     mIdleStart = sysCpu[3];
2414                     mIrqStart = sysCpu[4] + sysCpu[5] + sysCpu[6];
2415                 }
2416                 mUiStart = SystemClock.currentThreadTimeMillis();
2417             }
2418
2419             if (!mPageStarted) {
2420                 mPageStarted = true;
2421                 // if onResume() has been called, resumeWebViewTimers() does
2422                 // nothing.
2423                 resumeWebViewTimers();
2424             }
2425
2426             // reset sync timer to avoid sync starts during loading a page
2427             CookieSyncManager.getInstance().resetSync();
2428
2429             mInLoad = true;
2430             WebView currentWebView = mTabControl.getCurrentWebView();
2431             if (currentWebView == null || currentWebView.getScrollY() != 0) {
2432                 // This page has begun to load, so show the title bar
2433                 showFakeTitleBar();
2434             }
2435             updateInLoadMenuItems();
2436             if (!mIsNetworkUp) {
2437                 createAndShowNetworkDialog();
2438                 if (view != null) {
2439                     view.setNetworkAvailable(false);
2440                 }
2441             }
2442         }
2443
2444         @Override
2445         public void onPageFinished(WebView view, String url) {
2446             // Reset the title and icon in case we stopped a provisional
2447             // load.
2448             resetTitleAndIcon(view);
2449
2450             // Update the lock icon image only once we are done loading
2451             updateLockIconToLatest();
2452             updateScreenshot(view);
2453
2454             // Performance probe
2455             if (false) {
2456                 long[] sysCpu = new long[7];
2457                 if (Process.readProcFile("/proc/stat", SYSTEM_CPU_FORMAT, null,
2458                         sysCpu, null)) {
2459                     String uiInfo = "UI thread used "
2460                             + (SystemClock.currentThreadTimeMillis() - mUiStart)
2461                             + " ms";
2462                     if (LOGD_ENABLED) {
2463                         Log.d(LOGTAG, uiInfo);
2464                     }
2465                     //The string that gets written to the log
2466                     String performanceString = "It took total "
2467                             + (SystemClock.uptimeMillis() - mStart)
2468                             + " ms clock time to load the page."
2469                             + "\nbrowser process used "
2470                             + (Process.getElapsedCpuTime() - mProcessStart)
2471                             + " ms, user processes used "
2472                             + (sysCpu[0] + sysCpu[1] - mUserStart) * 10
2473                             + " ms, kernel used "
2474                             + (sysCpu[2] - mSystemStart) * 10
2475                             + " ms, idle took " + (sysCpu[3] - mIdleStart) * 10
2476                             + " ms and irq took "
2477                             + (sysCpu[4] + sysCpu[5] + sysCpu[6] - mIrqStart)
2478                             * 10 + " ms, " + uiInfo;
2479                     if (LOGD_ENABLED) {
2480                         Log.d(LOGTAG, performanceString + "\nWebpage: " + url);
2481                     }
2482                     if (url != null) {
2483                         // strip the url to maintain consistency
2484                         String newUrl = new String(url);
2485                         if (newUrl.startsWith("http://www.")) {
2486                             newUrl = newUrl.substring(11);
2487                         } else if (newUrl.startsWith("http://")) {
2488                             newUrl = newUrl.substring(7);
2489                         } else if (newUrl.startsWith("https://www.")) {
2490                             newUrl = newUrl.substring(12);
2491                         } else if (newUrl.startsWith("https://")) {
2492                             newUrl = newUrl.substring(8);
2493                         }
2494                         if (LOGD_ENABLED) {
2495                             Log.d(LOGTAG, newUrl + " loaded");
2496                         }
2497                         /*
2498                         if (sWhiteList.contains(newUrl)) {
2499                             // The string that gets pushed to the statistcs
2500                             // service
2501                             performanceString = performanceString
2502                                     + "\nWebpage: "
2503                                     + newUrl
2504                                     + "\nCarrier: "
2505                                     + android.os.SystemProperties
2506                                             .get("gsm.sim.operator.alpha");
2507                             if (mWebView != null
2508                                     && mWebView.getContext() != null
2509                                     && mWebView.getContext().getSystemService(
2510                                     Context.CONNECTIVITY_SERVICE) != null) {
2511                                 ConnectivityManager cManager =
2512                                         (ConnectivityManager) mWebView
2513                                         .getContext().getSystemService(
2514                                         Context.CONNECTIVITY_SERVICE);
2515                                 NetworkInfo nInfo = cManager
2516                                         .getActiveNetworkInfo();
2517                                 if (nInfo != null) {
2518                                     performanceString = performanceString
2519                                             + "\nNetwork Type: "
2520                                             + nInfo.getType().toString();
2521                                 }
2522                             }
2523                             Checkin.logEvent(mResolver,
2524                                     Checkin.Events.Tag.WEBPAGE_LOAD,
2525                                     performanceString);
2526                             Log.w(LOGTAG, "pushed to the statistics service");
2527                         }
2528                         */
2529                     }
2530                 }
2531              }
2532
2533             if (mInTrace) {
2534                 mInTrace = false;
2535                 Debug.stopMethodTracing();
2536             }
2537
2538             if (mPageStarted) {
2539                 mPageStarted = false;
2540                 // pauseWebViewTimers() will do nothing and return false if
2541                 // onPause() is not called yet.
2542                 if (pauseWebViewTimers()) {
2543                     if (mWakeLock.isHeld()) {
2544                         mHandler.removeMessages(RELEASE_WAKELOCK);
2545                         mWakeLock.release();
2546                     }
2547                 }
2548             }
2549         }
2550
2551         // return true if want to hijack the url to let another app to handle it
2552         @Override
2553         public boolean shouldOverrideUrlLoading(WebView view, String url) {
2554             if (url.startsWith(SCHEME_WTAI)) {
2555                 // wtai://wp/mc;number
2556                 // number=string(phone-number)
2557                 if (url.startsWith(SCHEME_WTAI_MC)) {
2558                     Intent intent = new Intent(Intent.ACTION_VIEW,
2559                             Uri.parse(WebView.SCHEME_TEL +
2560                             url.substring(SCHEME_WTAI_MC.length())));
2561                     startActivity(intent);
2562                     return true;
2563                 }
2564                 // wtai://wp/sd;dtmf
2565                 // dtmf=string(dialstring)
2566                 if (url.startsWith(SCHEME_WTAI_SD)) {
2567                     // TODO
2568                     // only send when there is active voice connection
2569                     return false;
2570                 }
2571                 // wtai://wp/ap;number;name
2572                 // number=string(phone-number)
2573                 // name=string
2574                 if (url.startsWith(SCHEME_WTAI_AP)) {
2575                     // TODO
2576                     return false;
2577                 }
2578             }
2579
2580             // The "about:" schemes are internal to the browser; don't
2581             // want these to be dispatched to other apps.
2582             if (url.startsWith("about:")) {
2583                 return false;
2584             }
2585
2586             Intent intent;
2587
2588             // perform generic parsing of the URI to turn it into an Intent.
2589             try {
2590                 intent = Intent.parseUri(url, Intent.URI_INTENT_SCHEME);
2591             } catch (URISyntaxException ex) {
2592                 Log.w("Browser", "Bad URI " + url + ": " + ex.getMessage());
2593                 return false;
2594             }
2595
2596             // check whether the intent can be resolved. If not, we will see
2597             // whether we can download it from the Market.
2598             if (getPackageManager().resolveActivity(intent, 0) == null) {
2599                 String packagename = intent.getPackage();
2600                 if (packagename != null) {
2601                     intent = new Intent(Intent.ACTION_VIEW, Uri
2602                             .parse("market://search?q=pname:" + packagename));
2603                     intent.addCategory(Intent.CATEGORY_BROWSABLE);
2604                     startActivity(intent);
2605                     return true;
2606                 } else {
2607                     return false;
2608                 }
2609             }
2610
2611             // sanitize the Intent, ensuring web pages can not bypass browser
2612             // security (only access to BROWSABLE activities).
2613             intent.addCategory(Intent.CATEGORY_BROWSABLE);
2614             intent.setComponent(null);
2615             try {
2616                 if (startActivityIfNeeded(intent, -1)) {
2617                     return true;
2618                 }
2619             } catch (ActivityNotFoundException ex) {
2620                 // ignore the error. If no application can handle the URL,
2621                 // eg about:blank, assume the browser can handle it.
2622             }
2623
2624             if (mMenuIsDown) {
2625                 openTab(url);
2626                 closeOptionsMenu();
2627                 return true;
2628             }
2629
2630             return false;
2631         }
2632
2633         /**
2634          * Updates the lock icon. This method is called when we discover another
2635          * resource to be loaded for this page (for example, javascript). While
2636          * we update the icon type, we do not update the lock icon itself until
2637          * we are done loading, it is slightly more secure this way.
2638          */
2639         @Override
2640         public void onLoadResource(WebView view, String url) {
2641             if (url != null && url.length() > 0) {
2642                 // It is only if the page claims to be secure
2643                 // that we may have to update the lock:
2644                 if (mLockIconType == LOCK_ICON_SECURE) {
2645                     // If NOT a 'safe' url, change the lock to mixed content!
2646                     if (!(URLUtil.isHttpsUrl(url) || URLUtil.isDataUrl(url) || URLUtil.isAboutUrl(url))) {
2647                         mLockIconType = LOCK_ICON_MIXED;
2648                         if (LOGV_ENABLED) {
2649                             Log.v(LOGTAG, "BrowserActivity.updateLockIcon:" +
2650                                   " updated lock icon to " + mLockIconType + " due to " + url);
2651                         }
2652                     }
2653                 }
2654             }
2655         }
2656
2657         /**
2658          * Show the dialog, asking the user if they would like to continue after
2659          * an excessive number of HTTP redirects.
2660          */
2661         @Override
2662         public void onTooManyRedirects(WebView view, final Message cancelMsg,
2663                 final Message continueMsg) {
2664             new AlertDialog.Builder(BrowserActivity.this)
2665                 .setTitle(R.string.browserFrameRedirect)
2666                 .setMessage(R.string.browserFrame307Post)
2667                 .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
2668                     public void onClick(DialogInterface dialog, int which) {
2669                         continueMsg.sendToTarget();
2670                     }})
2671                 .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
2672                     public void onClick(DialogInterface dialog, int which) {
2673                         cancelMsg.sendToTarget();
2674                     }})
2675                 .setOnCancelListener(new OnCancelListener() {
2676                     public void onCancel(DialogInterface dialog) {
2677                         cancelMsg.sendToTarget();
2678                     }})
2679                 .show();
2680         }
2681
2682         // Container class for the next error dialog that needs to be
2683         // displayed.
2684         class ErrorDialog {
2685             public final int mTitle;
2686             public final String mDescription;
2687             public final int mError;
2688             ErrorDialog(int title, String desc, int error) {
2689                 mTitle = title;
2690                 mDescription = desc;
2691                 mError = error;
2692             }
2693         };
2694
2695         private void processNextError() {
2696             if (mQueuedErrors == null) {
2697                 return;
2698             }
2699             // The first one is currently displayed so just remove it.
2700             mQueuedErrors.removeFirst();
2701             if (mQueuedErrors.size() == 0) {
2702                 mQueuedErrors = null;
2703                 return;
2704             }
2705             showError(mQueuedErrors.getFirst());
2706         }
2707
2708         private DialogInterface.OnDismissListener mDialogListener =
2709                 new DialogInterface.OnDismissListener() {
2710                     public void onDismiss(DialogInterface d) {
2711                         processNextError();
2712                     }
2713                 };
2714         private LinkedList<ErrorDialog> mQueuedErrors;
2715
2716         private void queueError(int err, String desc) {
2717             if (mQueuedErrors == null) {
2718                 mQueuedErrors = new LinkedList<ErrorDialog>();
2719             }
2720             for (ErrorDialog d : mQueuedErrors) {
2721                 if (d.mError == err) {
2722                     // Already saw a similar error, ignore the new one.
2723                     return;
2724                 }
2725             }
2726             ErrorDialog errDialog = new ErrorDialog(
2727                     err == WebViewClient.ERROR_FILE_NOT_FOUND ?
2728                     R.string.browserFrameFileErrorLabel :
2729                     R.string.browserFrameNetworkErrorLabel,
2730                     desc, err);
2731             mQueuedErrors.addLast(errDialog);
2732
2733             // Show the dialog now if the queue was empty.
2734             if (mQueuedErrors.size() == 1) {
2735                 showError(errDialog);
2736             }
2737         }
2738
2739         private void showError(ErrorDialog errDialog) {
2740             AlertDialog d = new AlertDialog.Builder(BrowserActivity.this)
2741                     .setTitle(errDialog.mTitle)
2742                     .setMessage(errDialog.mDescription)
2743                     .setPositiveButton(R.string.ok, null)
2744                     .create();
2745             d.setOnDismissListener(mDialogListener);
2746             d.show();
2747         }
2748
2749         /**
2750          * Show a dialog informing the user of the network error reported by
2751          * WebCore.
2752          */
2753         @Override
2754         public void onReceivedError(WebView view, int errorCode,
2755                 String description, String failingUrl) {
2756             if (errorCode != WebViewClient.ERROR_HOST_LOOKUP &&
2757                     errorCode != WebViewClient.ERROR_CONNECT &&
2758                     errorCode != WebViewClient.ERROR_BAD_URL &&
2759                     errorCode != WebViewClient.ERROR_UNSUPPORTED_SCHEME &&
2760                     errorCode != WebViewClient.ERROR_FILE) {
2761                 queueError(errorCode, description);
2762             }
2763             Log.e(LOGTAG, "onReceivedError " + errorCode + " " + failingUrl
2764                     + " " + description);
2765
2766             // We need to reset the title after an error.
2767             resetTitleAndRevertLockIcon();
2768         }
2769
2770         /**
2771          * Check with the user if it is ok to resend POST data as the page they
2772          * are trying to navigate to is the result of a POST.
2773          */
2774         @Override
2775         public void onFormResubmission(WebView view, final Message dontResend,
2776                                        final Message resend) {
2777             new AlertDialog.Builder(BrowserActivity.this)
2778                 .setTitle(R.string.browserFrameFormResubmitLabel)
2779                 .setMessage(R.string.browserFrameFormResubmitMessage)
2780                 .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
2781                     public void onClick(DialogInterface dialog, int which) {
2782                         resend.sendToTarget();
2783                     }})
2784                 .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
2785                     public void onClick(DialogInterface dialog, int which) {
2786                         dontResend.sendToTarget();
2787                     }})
2788                 .setOnCancelListener(new OnCancelListener() {
2789                     public void onCancel(DialogInterface dialog) {
2790                         dontResend.sendToTarget();
2791                     }})
2792                 .show();
2793         }
2794
2795         /**
2796          * Insert the url into the visited history database.
2797          * @param url The url to be inserted.
2798          * @param isReload True if this url is being reloaded.
2799          * FIXME: Not sure what to do when reloading the page.
2800          */
2801         @Override
2802         public void doUpdateVisitedHistory(WebView view, String url,
2803                 boolean isReload) {
2804             if (url.regionMatches(true, 0, "about:", 0, 6)) {
2805                 return;
2806             }
2807             // remove "client" before updating it to the history so that it wont
2808             // show up in the auto-complete list.
2809             int index = url.indexOf("client=ms-");
2810             if (index > 0 && url.contains(".google.")) {
2811                 int end = url.indexOf('&', index);
2812                 if (end > 0) {
2813                     url = url.substring(0, index-1).concat(url.substring(end));
2814                 } else {
2815                     url = url.substring(0, index-1);
2816                 }
2817             }
2818             Browser.updateVisitedHistory(mResolver, url, true);
2819             WebIconDatabase.getInstance().retainIconForPageUrl(url);
2820         }
2821
2822         /**
2823          * Displays SSL error(s) dialog to the user.
2824          */
2825         @Override
2826         public void onReceivedSslError(
2827             final WebView view, final SslErrorHandler handler, final SslError error) {
2828
2829             if (mSettings.showSecurityWarnings()) {
2830                 final LayoutInflater factory =
2831                     LayoutInflater.from(BrowserActivity.this);
2832                 final View warningsView =
2833                     factory.inflate(R.layout.ssl_warnings, null);
2834                 final LinearLayout placeholder =
2835                     (LinearLayout)warningsView.findViewById(R.id.placeholder);
2836
2837                 if (error.hasError(SslError.SSL_UNTRUSTED)) {
2838                     LinearLayout ll = (LinearLayout)factory
2839                         .inflate(R.layout.ssl_warning, null);
2840                     ((TextView)ll.findViewById(R.id.warning))
2841                         .setText(R.string.ssl_untrusted);
2842                     placeholder.addView(ll);
2843                 }
2844
2845                 if (error.hasError(SslError.SSL_IDMISMATCH)) {
2846                     LinearLayout ll = (LinearLayout)factory
2847                         .inflate(R.layout.ssl_warning, null);
2848                     ((TextView)ll.findViewById(R.id.warning))
2849                         .setText(R.string.ssl_mismatch);
2850                     placeholder.addView(ll);
2851                 }
2852
2853                 if (error.hasError(SslError.SSL_EXPIRED)) {
2854                     LinearLayout ll = (LinearLayout)factory
2855                         .inflate(R.layout.ssl_warning, null);
2856                     ((TextView)ll.findViewById(R.id.warning))
2857                         .setText(R.string.ssl_expired);
2858                     placeholder.addView(ll);
2859                 }
2860
2861                 if (error.hasError(SslError.SSL_NOTYETVALID)) {
2862                     LinearLayout ll = (LinearLayout)factory
2863                         .inflate(R.layout.ssl_warning, null);
2864                     ((TextView)ll.findViewById(R.id.warning))
2865                         .setText(R.string.ssl_not_yet_valid);
2866                     placeholder.addView(ll);
2867                 }
2868
2869                 new AlertDialog.Builder(BrowserActivity.this)
2870                     .setTitle(R.string.security_warning)
2871                     .setIcon(android.R.drawable.ic_dialog_alert)
2872                     .setView(warningsView)
2873                     .setPositiveButton(R.string.ssl_continue,
2874                             new DialogInterface.OnClickListener() {
2875                                 public void onClick(DialogInterface dialog, int whichButton) {
2876                                     handler.proceed();
2877                                 }
2878                             })
2879                     .setNeutralButton(R.string.view_certificate,
2880                             new DialogInterface.OnClickListener() {
2881                                 public void onClick(DialogInterface dialog, int whichButton) {
2882                                     showSSLCertificateOnError(view, handler, error);
2883                                 }
2884                             })
2885                     .setNegativeButton(R.string.cancel,
2886                             new DialogInterface.OnClickListener() {
2887                                 public void onClick(DialogInterface dialog, int whichButton) {
2888                                     handler.cancel();
2889                                     BrowserActivity.this.resetTitleAndRevertLockIcon();
2890                                 }
2891                             })
2892                     .setOnCancelListener(
2893                             new DialogInterface.OnCancelListener() {
2894                                 public void onCancel(DialogInterface dialog) {
2895                                     handler.cancel();
2896                                     BrowserActivity.this.resetTitleAndRevertLockIcon();
2897                                 }
2898                             })
2899                     .show();
2900             } else {
2901                 handler.proceed();
2902             }
2903         }
2904
2905         /**
2906          * Handles an HTTP authentication request.
2907          *
2908          * @param handler The authentication handler
2909          * @param host The host
2910          * @param realm The realm
2911          */
2912         @Override
2913         public void onReceivedHttpAuthRequest(WebView view,
2914                 final HttpAuthHandler handler, final String host, final String realm) {
2915             String username = null;
2916             String password = null;
2917
2918             boolean reuseHttpAuthUsernamePassword =
2919                 handler.useHttpAuthUsernamePassword();
2920
2921             if (reuseHttpAuthUsernamePassword &&
2922                     (mTabControl.getCurrentWebView() != null)) {
2923                 String[] credentials =
2924                         mTabControl.getCurrentWebView()
2925                                 .getHttpAuthUsernamePassword(host, realm);
2926                 if (credentials != null && credentials.length == 2) {
2927                     username = credentials[0];
2928                     password = credentials[1];
2929                 }
2930             }
2931
2932             if (username != null && password != null) {
2933                 handler.proceed(username, password);
2934             } else {
2935                 showHttpAuthentication(handler, host, realm, null, null, null, 0);
2936             }
2937         }
2938
2939         @Override
2940         public boolean shouldOverrideKeyEvent(WebView view, KeyEvent event) {
2941             if (mMenuIsDown) {
2942                 // only check shortcut key when MENU is held
2943                 return getWindow().isShortcutKey(event.getKeyCode(), event);
2944             } else {
2945                 return false;
2946             }
2947         }
2948
2949         @Override
2950         public void onUnhandledKeyEvent(WebView view, KeyEvent event) {
2951             if (view != mTabControl.getCurrentTopWebView()) {
2952                 return;
2953             }
2954             if (event.isDown()) {
2955                 BrowserActivity.this.onKeyDown(event.getKeyCode(), event);
2956             } else {
2957                 BrowserActivity.this.onKeyUp(event.getKeyCode(), event);
2958             }
2959         }
2960     };
2961
2962     //--------------------------------------------------------------------------
2963     // WebChromeClient implementation
2964     //--------------------------------------------------------------------------
2965
2966     /* package */ WebChromeClient getWebChromeClient() {
2967         return mWebChromeClient;
2968     }
2969
2970     private final WebChromeClient mWebChromeClient = new WebChromeClient() {
2971         // Helper method to create a new tab or sub window.
2972         private void createWindow(final boolean dialog, final Message msg) {
2973             if (dialog) {
2974                 mTabControl.createSubWindow();
2975                 final TabControl.Tab t = mTabControl.getCurrentTab();
2976                 attachSubWindow(t);
2977                 WebView.WebViewTransport transport =
2978                         (WebView.WebViewTransport) msg.obj;
2979                 transport.setWebView(t.getSubWebView());
2980                 msg.sendToTarget();
2981             } else {
2982                 final TabControl.Tab parent = mTabControl.getCurrentTab();
2983                 final TabControl.Tab newTab
2984                         = openTabAndShow(EMPTY_URL_DATA, false, null);
2985                 if (newTab != parent) {
2986                     parent.addChildTab(newTab);
2987                 }
2988                 WebView.WebViewTransport transport =
2989                         (WebView.WebViewTransport) msg.obj;
2990                 transport.setWebView(mTabControl.getCurrentWebView());
2991                 msg.sendToTarget();
2992             }
2993         }
2994
2995         @Override
2996         public boolean onCreateWindow(WebView view, final boolean dialog,
2997                 final boolean userGesture, final Message resultMsg) {
2998             // Short-circuit if we can't create any more tabs or sub windows.
2999             if (dialog && mTabControl.getCurrentSubWindow() != null) {
3000                 new AlertDialog.Builder(BrowserActivity.this)
3001                         .setTitle(R.string.too_many_subwindows_dialog_title)
3002                         .setIcon(android.R.drawable.ic_dialog_alert)
3003                         .setMessage(R.string.too_many_subwindows_dialog_message)
3004                         .setPositiveButton(R.string.ok, null)
3005                         .show();
3006                 return false;
3007             } else if (mTabControl.getTabCount() >= TabControl.MAX_TABS) {
3008                 new AlertDialog.Builder(BrowserActivity.this)
3009                         .setTitle(R.string.too_many_windows_dialog_title)
3010                         .setIcon(android.R.drawable.ic_dialog_alert)
3011                         .setMessage(R.string.too_many_windows_dialog_message)
3012                         .setPositiveButton(R.string.ok, null)
3013                         .show();
3014                 return false;
3015             }
3016
3017             // Short-circuit if this was a user gesture.
3018             if (userGesture) {
3019                 createWindow(dialog, resultMsg);
3020                 return true;
3021             }
3022
3023             // Allow the popup and create the appropriate window.
3024             final AlertDialog.OnClickListener allowListener =
3025                     new AlertDialog.OnClickListener() {
3026                         public void onClick(DialogInterface d,
3027                                 int which) {
3028                             createWindow(dialog, resultMsg);
3029                         }
3030                     };
3031
3032             // Block the popup by returning a null WebView.
3033             final AlertDialog.OnClickListener blockListener =
3034                     new AlertDialog.OnClickListener() {
3035                         public void onClick(DialogInterface d, int which) {
3036                             resultMsg.sendToTarget();
3037                         }
3038                     };
3039
3040             // Build a confirmation dialog to display to the user.
3041             final AlertDialog d =
3042                     new AlertDialog.Builder(BrowserActivity.this)
3043                     .setTitle(R.string.attention)
3044                     .setIcon(android.R.drawable.ic_dialog_alert)
3045                     .setMessage(R.string.popup_window_attempt)
3046                     .setPositiveButton(R.string.allow, allowListener)
3047                     .setNegativeButton(R.string.block, blockListener)
3048                     .setCancelable(false)
3049                     .create();
3050
3051             // Show the confirmation dialog.
3052             d.show();
3053             return true;
3054         }
3055
3056         @Override
3057         public void onCloseWindow(WebView window) {
3058             final TabControl.Tab current = mTabControl.getCurrentTab();
3059             final TabControl.Tab parent = current.getParentTab();
3060             if (parent != null) {
3061                 // JavaScript can only close popup window.
3062                 switchToTab(mTabControl.getTabIndex(parent));
3063                 // Now we need to close the window
3064                 closeTab(current);
3065             }
3066         }
3067
3068         @Override
3069         public void onProgressChanged(WebView view, int newProgress) {
3070             mTitleBar.setProgress(newProgress);
3071             if (mFakeTitleBar != null) {
3072                 mFakeTitleBar.setProgress(newProgress);
3073             }
3074
3075             if (newProgress == 100) {
3076                 // onProgressChanged() is called for sub-frame too while
3077                 // onPageFinished() is only called for the main frame. sync
3078                 // cookie and cache promptly here.
3079                 CookieSyncManager.getInstance().sync();
3080                 if (mInLoad) {
3081                     mInLoad = false;
3082                     updateInLoadMenuItems();
3083                     // If the options menu is open, leave the title bar
3084                     if (!mOptionsMenuOpen || !mIconView) {
3085                         hideFakeTitleBar();
3086                     }
3087                 }
3088             } else if (!mInLoad) {
3089                 // onPageFinished may have already been called but a subframe
3090                 // is still loading and updating the progress. Reset mInLoad
3091                 // and update the menu items.
3092                 mInLoad = true;
3093                 updateInLoadMenuItems();
3094                 WebView currentWebView = mTabControl.getCurrentWebView();
3095                 if ((currentWebView == null || currentWebView.getScrollY() != 0)
3096                         && (!mOptionsMenuOpen || mIconView)) {
3097                     // This page has begun to load, so show the title bar
3098                     showFakeTitleBar();
3099                 }
3100             }
3101         }
3102
3103         @Override
3104         public void onReceivedTitle(WebView view, String title) {
3105             String url = view.getUrl();
3106
3107             // here, if url is null, we want to reset the title
3108             setUrlTitle(url, title);
3109
3110             if (url == null ||
3111                 url.length() >= SQLiteDatabase.SQLITE_MAX_LIKE_PATTERN_LENGTH) {
3112                 return;
3113             }
3114             // See if we can find the current url in our history database and
3115             // add the new title to it.
3116             if (url.startsWith("http://www.")) {
3117                 url = url.substring(11);
3118             } else if (url.startsWith("http://")) {
3119                 url = url.substring(4);
3120             }
3121             try {
3122                 url = "%" + url;
3123                 String [] selArgs = new String[] { url };
3124
3125                 String where = Browser.BookmarkColumns.URL + " LIKE ? AND "
3126                         + Browser.BookmarkColumns.BOOKMARK + " = 0";
3127                 Cursor c = mResolver.query(Browser.BOOKMARKS_URI,
3128                     Browser.HISTORY_PROJECTION, where, selArgs, null);
3129                 if (c.moveToFirst()) {
3130                     // Current implementation of database only has one entry per
3131                     // url.
3132                     ContentValues map = new ContentValues();
3133                     map.put(Browser.BookmarkColumns.TITLE, title);
3134                     mResolver.update(Browser.BOOKMARKS_URI, map,
3135                             "_id = " + c.getInt(0), null);
3136                 }
3137                 c.close();
3138             } catch (IllegalStateException e) {
3139                 Log.e(LOGTAG, "BrowserActivity onReceived title", e);
3140             } catch (SQLiteException ex) {
3141                 Log.e(LOGTAG, "onReceivedTitle() caught SQLiteException: ", ex);
3142             }
3143         }
3144
3145         @Override
3146         public void onReceivedIcon(WebView view, Bitmap icon) {
3147             updateIcon(view, icon);
3148         }
3149
3150         @Override
3151         public void onReceivedTouchIconUrl(WebView view, String url) {
3152             final ContentResolver cr = getContentResolver();
3153             final Cursor c =
3154                     BrowserBookmarksAdapter.queryBookmarksForUrl(cr,
3155                             view.getOriginalUrl(), view.getUrl(), true);
3156             if (c != null) {
3157                 if (c.getCount() > 0) {
3158                     new DownloadTouchIcon(cr, c, view).execute(url);
3159                 } else {
3160                     c.close();
3161                 }
3162             }
3163         }
3164
3165         @Override
3166         public void onShowCustomView(View view, WebChromeClient.CustomViewCallback callback) {
3167             if (mCustomView != null)
3168                 return;
3169
3170             // Add the custom view to its container.
3171             mCustomViewContainer.addView(view, COVER_SCREEN_GRAVITY_CENTER);
3172             mCustomView = view;
3173             mCustomViewCallback = callback;
3174             // Save the menu state and set it to empty while the custom
3175             // view is showing.
3176             mOldMenuState = mMenuState;
3177             mMenuState = EMPTY_MENU;
3178             // Hide the content view.
3179             mContentView.setVisibility(View.GONE);
3180             // Finally show the custom view container.
3181             mCustomViewContainer.setVisibility(View.VISIBLE);
3182             mCustomViewContainer.bringToFront();
3183         }
3184
3185         @Override
3186         public void onHideCustomView() {
3187             if (mCustomView == null)
3188                 return;
3189
3190             // Hide the custom view.
3191             mCustomView.setVisibility(View.GONE);
3192             // Remove the custom view from its container.
3193             mCustomViewContainer.removeView(mCustomView);
3194             mCustomView = null;
3195             // Reset the old menu state.
3196             mMenuState = mOldMenuState;
3197             mOldMenuState = EMPTY_MENU;
3198             mCustomViewContainer.setVisibility(View.GONE);
3199             mCustomViewCallback.onCustomViewHidden();
3200             // Show the content view.
3201             mContentView.setVisibility(View.VISIBLE);
3202         }
3203
3204         /**
3205          * The origin has exceeded its database quota.
3206          * @param url the URL that exceeded the quota
3207          * @param databaseIdentifier the identifier of the database on
3208          *     which the transaction that caused the quota overflow was run
3209          * @param currentQuota the current quota for the origin.
3210          * @param estimatedSize the estimated size of the database.
3211          * @param totalUsedQuota is the sum of all origins' quota.
3212          * @param quotaUpdater The callback to run when a decision to allow or
3213          *     deny quota has been made. Don't forget to call this!
3214          */
3215         @Override
3216         public void onExceededDatabaseQuota(String url,
3217             String databaseIdentifier, long currentQuota, long estimatedSize,
3218             long totalUsedQuota, WebStorage.QuotaUpdater quotaUpdater) {
3219             mSettings.getWebStorageSizeManager().onExceededDatabaseQuota(
3220                     url, databaseIdentifier, currentQuota, estimatedSize,
3221                     totalUsedQuota, quotaUpdater);
3222         }
3223
3224         /**
3225          * The Application Cache has exceeded its max size.
3226          * @param spaceNeeded is the amount of disk space that would be needed
3227          * in order for the last appcache operation to succeed.
3228          * @param totalUsedQuota is the sum of all origins' quota.
3229          * @param quotaUpdater A callback to inform the WebCore thread that a new
3230          * app cache size is available. This callback must always be executed at
3231          * some point to ensure that the sleeping WebCore thread is woken up.
3232          */
3233         @Override
3234         public void onReachedMaxAppCacheSize(long spaceNeeded,
3235                 long totalUsedQuota, WebStorage.QuotaUpdater quotaUpdater) {
3236             mSettings.getWebStorageSizeManager().onReachedMaxAppCacheSize(
3237                     spaceNeeded, totalUsedQuota, quotaUpdater);
3238         }
3239
3240         /**
3241          * Instructs the browser to show a prompt to ask the user to set the
3242          * Geolocation permission state for the specified origin.
3243          * @param origin The origin for which Geolocation permissions are
3244          *     requested.
3245          * @param callback The callback to call once the user has set the
3246          *     Geolocation permission state.
3247          */
3248         @Override
3249         public void onGeolocationPermissionsShowPrompt(String origin,
3250                 GeolocationPermissions.Callback callback) {
3251             mTabControl.getCurrentTab().getGeolocationPermissionsPrompt().show(
3252                     origin, callback);
3253         }
3254
3255         /**
3256          * Instructs the browser to hide the Geolocation permissions prompt.
3257          */
3258         @Override
3259         public void onGeolocationPermissionsHidePrompt() {
3260             mTabControl.getCurrentTab().getGeolocationPermissionsPrompt().hide();
3261         }
3262
3263         /* Adds a JavaScript error message to the system log.
3264          * @param message The error message to report.
3265          * @param lineNumber The line number of the error.
3266          * @param sourceID The name of the source file that caused the error.
3267          */
3268         @Override
3269         public void addMessageToConsole(String message, int lineNumber, String sourceID) {
3270             ErrorConsoleView errorConsole = mTabControl.getCurrentErrorConsole(true);
3271             errorConsole.addErrorMessage(message, sourceID, lineNumber);
3272                 if (mShouldShowErrorConsole &&
3273                         errorConsole.getShowState() != ErrorConsoleView.SHOW_MAXIMIZED) {
3274                     errorConsole.showConsole(ErrorConsoleView.SHOW_MINIMIZED);
3275                 }
3276             Log.w(LOGTAG, "Console: " + message + " " + sourceID + ":" + lineNumber);
3277         }
3278
3279         /**
3280          * Ask the browser for an icon to represent a <video> element.
3281          * This icon will be used if the Web page did not specify a poster attribute.
3282          *
3283          * @return Bitmap The icon or null if no such icon is available.
3284          * @hide pending API Council approval
3285          */
3286         @Override
3287         public Bitmap getDefaultVideoPoster() {
3288             if (mDefaultVideoPoster == null) {
3289                 mDefaultVideoPoster = BitmapFactory.decodeResource(
3290                         getResources(), R.drawable.default_video_poster);
3291             }
3292             return mDefaultVideoPoster;
3293         }
3294
3295         /**
3296          * Ask the host application for a custom progress view to show while
3297          * a <video> is loading.
3298          *
3299          * @return View The progress view.
3300          * @hide pending API Council approval
3301          */
3302         @Override
3303         public View getVideoLoadingProgressView() {
3304             if (mVideoProgressView == null) {
3305                 LayoutInflater inflater = LayoutInflater.from(BrowserActivity.this);
3306                 mVideoProgressView = inflater.inflate(R.layout.video_loading_progress, null);
3307             }
3308             return mVideoProgressView;
3309         }
3310     };
3311
3312     /**
3313      * Notify the host application a download should be done, or that
3314      * the data should be streamed if a streaming viewer is available.
3315      * @param url The full url to the content that should be downloaded
3316      * @param contentDisposition Content-disposition http header, if
3317      *                           present.
3318      * @param mimetype The mimetype of the content reported by the server
3319      * @param contentLength The file size reported by the server
3320      */
3321     public void onDownloadStart(String url, String userAgent,
3322             String contentDisposition, String mimetype, long contentLength) {
3323         // if we're dealing wih A/V content that's not explicitly marked
3324         //     for download, check if it's streamable.
3325         if (contentDisposition == null
3326                 || !contentDisposition.regionMatches(
3327                         true, 0, "attachment", 0, 10)) {
3328             // query the package manager to see if there's a registered handler
3329             //     that matches.
3330             Intent intent = new Intent(Intent.ACTION_VIEW);
3331             intent.setDataAndType(Uri.parse(url), mimetype);
3332             ResolveInfo info = getPackageManager().resolveActivity(intent,
3333                     PackageManager.MATCH_DEFAULT_ONLY);
3334             if (info != null) {
3335                 ComponentName myName = getComponentName();
3336                 // If we resolved to ourselves, we don't want to attempt to
3337                 // load the url only to try and download it again.
3338                 if (!myName.getPackageName().equals(
3339                         info.activityInfo.packageName)
3340                         || !myName.getClassName().equals(
3341                                 info.activityInfo.name)) {
3342                     // someone (other than us) knows how to handle this mime
3343                     // type with this scheme, don't download.
3344                     try {
3345                         startActivity(intent);
3346                         return;
3347                     } catch (ActivityNotFoundException ex) {
3348                         if (LOGD_ENABLED) {
3349                             Log.d(LOGTAG, "activity not found for " + mimetype
3350                                     + " over " + Uri.parse(url).getScheme(),
3351                                     ex);
3352                         }
3353                         // Best behavior is to fall back to a download in this
3354                         // case
3355                     }
3356                 }
3357             }
3358         }
3359         onDownloadStartNoStream(url, userAgent, contentDisposition, mimetype, contentLength);
3360     }
3361
3362     /**
3363      * Notify the host application a download should be done, even if there
3364      * is a streaming viewer available for thise type.
3365      * @param url The full url to the content that should be downloaded
3366      * @param contentDisposition Content-disposition http header, if
3367      *                           present.
3368      * @param mimetype The mimetype of the content reported by the server
3369      * @param contentLength The file size reported by the server
3370      */
3371     /*package */ void onDownloadStartNoStream(String url, String userAgent,
3372             String contentDisposition, String mimetype, long contentLength) {
3373
3374         String filename = URLUtil.guessFileName(url,
3375                 contentDisposition, mimetype);
3376
3377         // Check to see if we have an SDCard
3378         String status = Environment.getExternalStorageState();
3379         if (!status.equals(Environment.MEDIA_MOUNTED)) {
3380             int title;
3381             String msg;
3382
3383             // Check to see if the SDCard is busy, same as the music app
3384             if (status.equals(Environment.MEDIA_SHARED)) {
3385                 msg = getString(R.string.download_sdcard_busy_dlg_msg);
3386                 title = R.string.download_sdcard_busy_dlg_title;
3387             } else {
3388                 msg = getString(R.string.download_no_sdcard_dlg_msg, filename);
3389                 title = R.string.download_no_sdcard_dlg_title;
3390             }
3391
3392             new AlertDialog.Builder(this)
3393                 .setTitle(title)
3394                 .setIcon(android.R.drawable.ic_dialog_alert)
3395                 .setMessage(msg)
3396                 .setPositiveButton(R.string.ok, null)
3397                 .show();
3398             return;
3399         }
3400
3401         // java.net.URI is a lot stricter than KURL so we have to undo
3402         // KURL's percent-encoding and redo the encoding using java.net.URI.
3403         URI uri = null;
3404         try {
3405             // Undo the percent-encoding that KURL may have done.
3406             String newUrl = new String(URLUtil.decode(url.getBytes()));
3407             // Parse the url into pieces
3408             WebAddress w = new WebAddress(newUrl);
3409             String frag = null;
3410             String query = null;
3411             String path = w.mPath;
3412             // Break the path into path, query, and fragment
3413             if (path.length() > 0) {
3414                 // Strip the fragment
3415                 int idx = path.lastIndexOf('#');
3416                 if (idx != -1) {
3417                     frag = path.substring(idx + 1);
3418                     path = path.substring(0, idx);
3419                 }
3420                 idx = path.lastIndexOf('?');
3421                 if (idx != -1) {
3422                     query = path.substring(idx + 1);
3423                     path = path.substring(0, idx);
3424                 }
3425             }
3426             uri = new URI(w.mScheme, w.mAuthInfo, w.mHost, w.mPort, path,
3427                     query, frag);
3428         } catch (Exception e) {
3429             Log.e(LOGTAG, "Could not parse url for download: " + url, e);
3430             return;
3431         }
3432
3433         // XXX: Have to use the old url since the cookies were stored using the
3434         // old percent-encoded url.
3435         String cookies = CookieManager.getInstance().getCookie(url);
3436
3437         ContentValues values = new ContentValues();
3438         values.put(Downloads.COLUMN_URI, uri.toString());
3439         values.put(Downloads.COLUMN_COOKIE_DATA, cookies);
3440         values.put(Downloads.COLUMN_USER_AGENT, userAgent);
3441         values.put(Downloads.COLUMN_NOTIFICATION_PACKAGE,
3442                 getPackageName());
3443         values.put(Downloads.COLUMN_NOTIFICATION_CLASS,
3444                 BrowserDownloadPage.class.getCanonicalName());
3445         values.put(Downloads.COLUMN_VISIBILITY, Downloads.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
3446         values.put(Downloads.COLUMN_MIME_TYPE, mimetype);
3447         values.put(Downloads.COLUMN_FILE_NAME_HINT, filename);
3448         values.put(Downloads.COLUMN_DESCRIPTION, uri.getHost());
3449         if (contentLength > 0) {
3450             values.put(Downloads.COLUMN_TOTAL_BYTES, contentLength);
3451         }
3452         if (mimetype == null) {
3453             // We must have long pressed on a link or image to download it. We
3454             // are not sure of the mimetype in this case, so do a head request
3455             new FetchUrlMimeType(this).execute(values);
3456         } else {
3457             final Uri contentUri =
3458                     getContentResolver().insert(Downloads.CONTENT_URI, values);
3459             viewDownloads(contentUri);
3460         }
3461
3462     }
3463
3464     /**
3465      * Resets the lock icon. This method is called when we start a new load and
3466      * know the url to be loaded.
3467      */
3468     private void resetLockIcon(String url) {
3469         // Save the lock-icon state (we revert to it if the load gets cancelled)
3470         saveLockIcon();
3471
3472         mLockIconType = LOCK_ICON_UNSECURE;
3473         if (URLUtil.isHttpsUrl(url)) {
3474             mLockIconType = LOCK_ICON_SECURE;
3475             if (LOGV_ENABLED) {
3476                 Log.v(LOGTAG, "BrowserActivity.resetLockIcon:" +
3477                       " reset lock icon to " + mLockIconType);
3478             }
3479         }
3480
3481         updateLockIconImage(LOCK_ICON_UNSECURE);
3482     }
3483
3484     /* package */ void setLockIconType(int type) {
3485         mLockIconType = type;
3486     }
3487
3488     /* package */ int getLockIconType() {
3489         return mLockIconType;
3490     }
3491
3492     /* package */ void setPrevLockType(int type) {
3493         mPrevLockType = type;
3494     }
3495
3496     /* package */ int getPrevLockType() {
3497         return mPrevLockType;
3498     }
3499
3500     /**
3501      * Update the lock icon to correspond to our latest state.
3502      */
3503     /* package */ void updateLockIconToLatest() {
3504         updateLockIconImage(mLockIconType);
3505     }
3506
3507     /**
3508      * Updates the lock-icon image in the title-bar.
3509      */
3510     private void updateLockIconImage(int lockIconType) {
3511         Drawable d = null;
3512         if (lockIconType == LOCK_ICON_SECURE) {
3513             d = mSecLockIcon;
3514         } else if (lockIconType == LOCK_ICON_MIXED) {
3515             d = mMixLockIcon;
3516         }
3517         mTitleBar.setLock(d);
3518         if (mFakeTitleBar != null) {
3519             mFakeTitleBar.setLock(d);
3520         }
3521     }
3522
3523     /**
3524      * Displays a page-info dialog.
3525      * @param tab The tab to show info about
3526      * @param fromShowSSLCertificateOnError The flag that indicates whether
3527      * this dialog was opened from the SSL-certificate-on-error dialog or
3528      * not. This is important, since we need to know whether to return to
3529      * the parent dialog or simply dismiss.
3530      */
3531     private void showPageInfo(final TabControl.Tab tab,
3532                               final boolean fromShowSSLCertificateOnError) {
3533         final LayoutInflater factory = LayoutInflater
3534                 .from(this);
3535
3536         final View pageInfoView = factory.inflate(R.layout.page_info, null);
3537
3538         final WebView view = tab.getWebView();
3539
3540         String url = null;
3541         String title = null;
3542
3543         if (view == null) {
3544             url = tab.getUrl();
3545             title = tab.getTitle();
3546         } else if (view == mTabControl.getCurrentWebView()) {
3547              // Use the cached title and url if this is the current WebView
3548             url = mUrl;
3549             title = mTitle;
3550         } else {
3551             url = view.getUrl();
3552             title = view.getTitle();
3553         }
3554
3555         if (url == null) {
3556             url = "";
3557         }
3558         if (title == null) {
3559             title = "";
3560         }
3561
3562         ((TextView) pageInfoView.findViewById(R.id.address)).setText(url);
3563         ((TextView) pageInfoView.findViewById(R.id.title)).setText(title);
3564
3565         mPageInfoView = tab;
3566         mPageInfoFromShowSSLCertificateOnError = new Boolean(fromShowSSLCertificateOnError);
3567
3568         AlertDialog.Builder alertDialogBuilder =
3569             new AlertDialog.Builder(this)
3570             .setTitle(R.string.page_info).setIcon(android.R.drawable.ic_dialog_info)
3571             .setView(pageInfoView)
3572             .setPositiveButton(
3573                 R.string.ok,
3574                 new DialogInterface.OnClickListener() {
3575                     public void onClick(DialogInterface dialog,
3576                                         int whichButton) {
3577                         mPageInfoDialog = null;
3578                         mPageInfoView = null;
3579                         mPageInfoFromShowSSLCertificateOnError = null;
3580
3581                         // if we came here from the SSL error dialog
3582                         if (fromShowSSLCertificateOnError) {
3583                             // go back to the SSL error dialog
3584                             showSSLCertificateOnError(
3585                                 mSSLCertificateOnErrorView,
3586                                 mSSLCertificateOnErrorHandler,
3587                                 mSSLCertificateOnErrorError);
3588                         }
3589                     }
3590                 })
3591             .setOnCancelListener(
3592                 new DialogInterface.OnCancelListener() {
3593                     public void onCancel(DialogInterface dialog) {
3594                         mPageInfoDialog = null;
3595                         mPageInfoView = null;
3596                         mPageInfoFromShowSSLCertificateOnError = null;
3597
3598                         // if we came here from the SSL error dialog
3599                         if (fromShowSSLCertificateOnError) {
3600                             // go back to the SSL error dialog
3601                             showSSLCertificateOnError(
3602                                 mSSLCertificateOnErrorView,
3603                                 mSSLCertificateOnErrorHandler,
3604                                 mSSLCertificateOnErrorError);
3605                         }
3606                     }
3607                 });
3608
3609         // if we have a main top-level page SSL certificate set or a certificate
3610         // error
3611         if (fromShowSSLCertificateOnError ||
3612                 (view != null && view.getCertificate() != null)) {
3613             // add a 'View Certificate' button
3614             alertDialogBuilder.setNeutralButton(
3615                 R.string.view_certificate,
3616                 new DialogInterface.OnClickListener() {
3617                     public void onClick(DialogInterface dialog,
3618                                         int whichButton) {
3619                         mPageInfoDialog = null;
3620                         mPageInfoView = null;
3621                         mPageInfoFromShowSSLCertificateOnError = null;
3622
3623                         // if we came here from the SSL error dialog
3624                         if (fromShowSSLCertificateOnError) {
3625                             // go back to the SSL error dialog
3626                             showSSLCertificateOnError(
3627                                 mSSLCertificateOnErrorView,
3628                                 mSSLCertificateOnErrorHandler,
3629                                 mSSLCertificateOnErrorError);
3630                         } else {
3631                             // otherwise, display the top-most certificate from
3632                             // the chain
3633                             if (view.getCertificate() != null) {
3634                                 showSSLCertificate(tab);
3635                             }
3636                         }
3637                     }
3638                 });
3639         }
3640
3641         mPageInfoDialog = alertDialogBuilder.show();
3642     }
3643
3644        /**
3645      * Displays the main top-level page SSL certificate dialog
3646      * (accessible from the Page-Info dialog).
3647      * @param tab The tab to show certificate for.
3648      */
3649     private void showSSLCertificate(final TabControl.Tab tab) {
3650         final View certificateView =
3651                 inflateCertificateView(tab.getWebView().getCertificate());
3652         if (certificateView == null) {
3653             return;
3654         }
3655
3656         LayoutInflater factory = LayoutInflater.from(this);
3657
3658         final LinearLayout placeholder =
3659                 (LinearLayout)certificateView.findViewById(R.id.placeholder);
3660
3661         LinearLayout ll = (LinearLayout) factory.inflate(
3662             R.layout.ssl_success, placeholder);
3663         ((TextView)ll.findViewById(R.id.success))
3664             .setText(R.string.ssl_certificate_is_valid);
3665
3666         mSSLCertificateView = tab;
3667         mSSLCertificateDialog =
3668             new AlertDialog.Builder(this)
3669                 .setTitle(R.string.ssl_certificate).setIcon(
3670                     R.drawable.ic_dialog_browser_certificate_secure)
3671                 .setView(certificateView)
3672                 .setPositiveButton(R.string.ok,
3673                         new DialogInterface.OnClickListener() {
3674                             public void onClick(DialogInterface dialog,
3675                                     int whichButton) {
3676                                 mSSLCertificateDialog = null;
3677                                 mSSLCertificateView = null;
3678
3679                                 showPageInfo(tab, false);
3680                             }
3681                         })
3682                 .setOnCancelListener(
3683                         new DialogInterface.OnCancelListener() {
3684                             public void onCancel(DialogInterface dialog) {
3685                                 mSSLCertificateDialog = null;
3686                                 mSSLCertificateView = null;
3687
3688                                 showPageInfo(tab, false);
3689                             }
3690                         })
3691                 .show();
3692     }
3693
3694     /**
3695      * Displays the SSL error certificate dialog.
3696      * @param view The target web-view.
3697      * @param handler The SSL error handler responsible for cancelling the
3698      * connection that resulted in an SSL error or proceeding per user request.
3699      * @param error The SSL error object.
3700      */
3701     private void showSSLCertificateOnError(
3702         final WebView view, final SslErrorHandler handler, final SslError error) {
3703
3704         final View certificateView =
3705             inflateCertificateView(error.getCertificate());
3706         if (certificateView == null) {
3707             return;
3708         }
3709
3710         LayoutInflater factory = LayoutInflater.from(this);
3711
3712         final LinearLayout placeholder =
3713                 (LinearLayout)certificateView.findViewById(R.id.placeholder);
3714
3715         if (error.hasError(SslError.SSL_UNTRUSTED)) {
3716             LinearLayout ll = (LinearLayout)factory
3717                 .inflate(R.layout.ssl_warning, placeholder);
3718             ((TextView)ll.findViewById(R.id.warning))
3719                 .setText(R.string.ssl_untrusted);
3720         }
3721
3722         if (error.hasError(SslError.SSL_IDMISMATCH)) {
3723             LinearLayout ll = (LinearLayout)factory
3724                 .inflate(R.layout.ssl_warning, placeholder);
3725             ((TextView)ll.findViewById(R.id.warning))
3726                 .setText(R.string.ssl_mismatch);
3727         }
3728
3729         if (error.hasError(SslError.SSL_EXPIRED)) {
3730             LinearLayout ll = (LinearLayout)factory
3731                 .inflate(R.layout.ssl_warning, placeholder);
3732             ((TextView)ll.findViewById(R.id.warning))
3733                 .setText(R.string.ssl_expired);
3734         }
3735
3736         if (error.hasError(SslError.SSL_NOTYETVALID)) {
3737             LinearLayout ll = (LinearLayout)factory
3738                 .inflate(R.layout.ssl_warning, placeholder);
3739             ((TextView)ll.findViewById(R.id.warning))
3740                 .setText(R.string.ssl_not_yet_valid);
3741         }
3742
3743         mSSLCertificateOnErrorHandler = handler;
3744         mSSLCertificateOnErrorView = view;
3745         mSSLCertificateOnErrorError = error;
3746         mSSLCertificateOnErrorDialog =
3747             new AlertDialog.Builder(this)
3748                 .setTitle(R.string.ssl_certificate).setIcon(
3749                     R.drawable.ic_dialog_browser_certificate_partially_secure)
3750                 .setView(certificateView)
3751                 .setPositiveButton(R.string.ok,
3752                         new DialogInterface.OnClickListener() {
3753                             public void onClick(DialogInterface dialog,
3754                                     int whichButton) {
3755                                 mSSLCertificateOnErrorDialog = null;
3756                                 mSSLCertificateOnErrorView = null;
3757                                 mSSLCertificateOnErrorHandler = null;
3758                                 mSSLCertificateOnErrorError = null;
3759
3760                                 mWebViewClient.onReceivedSslError(
3761                                     view, handler, error);
3762                             }
3763                         })
3764                  .setNeutralButton(R.string.page_info_view,
3765                         new DialogInterface.OnClickListener() {
3766                             public void onClick(DialogInterface dialog,
3767                                     int whichButton) {
3768                                 mSSLCertificateOnErrorDialog = null;
3769
3770                                 // do not clear the dialog state: we will
3771                                 // need to show the dialog again once the
3772                                 // user is done exploring the page-info details
3773
3774                                 showPageInfo(mTabControl.getTabFromView(view),
3775                                         true);
3776                             }
3777                         })
3778                 .setOnCancelListener(
3779                         new DialogInterface.OnCancelListener() {
3780                             public void onCancel(DialogInterface dialog) {
3781                                 mSSLCertificateOnErrorDialog = null;
3782                                 mSSLCertificateOnErrorView = null;
3783                                 mSSLCertificateOnErrorHandler = null;
3784                                 mSSLCertificateOnErrorError = null;
3785
3786                                 mWebViewClient.onReceivedSslError(
3787                                     view, handler, error);
3788                             }
3789                         })
3790                 .show();
3791     }
3792
3793     /**
3794      * Inflates the SSL certificate view (helper method).
3795      * @param certificate The SSL certificate.
3796      * @return The resultant certificate view with issued-to, issued-by,
3797      * issued-on, expires-on, and possibly other fields set.
3798      * If the input certificate is null, returns null.
3799      */
3800     private View inflateCertificateView(SslCertificate certificate) {
3801         if (certificate == null) {
3802             return null;
3803         }
3804
3805         LayoutInflater factory = LayoutInflater.from(this);
3806
3807         View certificateView = factory.inflate(
3808             R.layout.ssl_certificate, null);
3809
3810         // issued to:
3811         SslCertificate.DName issuedTo = certificate.getIssuedTo();
3812         if (issuedTo != null) {
3813             ((TextView) certificateView.findViewById(R.id.to_common))
3814                 .setText(issuedTo.getCName());
3815             ((TextView) certificateView.findViewById(R.id.to_org))
3816                 .setText(issuedTo.getOName());
3817             ((TextView) certificateView.findViewById(R.id.to_org_unit))
3818                 .setText(issuedTo.getUName());
3819         }
3820
3821         // issued by:
3822         SslCertificate.DName issuedBy = certificate.getIssuedBy();
3823         if (issuedBy != null) {
3824             ((TextView) certificateView.findViewById(R.id.by_common))
3825                 .setText(issuedBy.getCName());
3826             ((TextView) certificateView.findViewById(R.id.by_org))
3827                 .setText(issuedBy.getOName());
3828             ((TextView) certificateView.findViewById(R.id.by_org_unit))
3829                 .setText(issuedBy.getUName());
3830         }
3831
3832         // issued on:
3833         String issuedOn = reformatCertificateDate(
3834             certificate.getValidNotBefore());
3835         ((TextView) certificateView.findViewById(R.id.issued_on))
3836             .setText(issuedOn);
3837
3838         // expires on:
3839         String expiresOn = reformatCertificateDate(
3840             certificate.getValidNotAfter());
3841         ((TextView) certificateView.findViewById(R.id.expires_on))
3842             .setText(expiresOn);
3843
3844         return certificateView;
3845     }
3846
3847     /**
3848      * Re-formats the certificate date (Date.toString()) string to
3849      * a properly localized date string.
3850      * @return Properly localized version of the certificate date string and
3851      * the original certificate date string if fails to localize.
3852      * If the original string is null, returns an empty string "".
3853      */
3854     private String reformatCertificateDate(String certificateDate) {
3855       String reformattedDate = null;
3856
3857       if (certificateDate != null) {
3858           Date date = null;
3859           try {
3860               date = java.text.DateFormat.getInstance().parse(certificateDate);
3861           } catch (ParseException e) {
3862               date = null;
3863           }
3864
3865           if (date != null) {
3866               reformattedDate =
3867                   DateFormat.getDateFormat(this).format(date);
3868           }
3869       }
3870
3871       return reformattedDate != null ? reformattedDate :
3872           (certificateDate != null ? certificateDate : "");
3873     }
3874
3875     /**
3876      * Displays an http-authentication dialog.
3877      */
3878     private void showHttpAuthentication(final HttpAuthHandler handler,
3879             final String host, final String realm, final String title,
3880             final String name, final String password, int focusId) {
3881         LayoutInflater factory = LayoutInflater.from(this);
3882         final View v = factory
3883                 .inflate(R.layout.http_authentication, null);
3884         if (name != null) {
3885             ((EditText) v.findViewById(R.id.username_edit)).setText(name);
3886         }
3887         if (password != null) {
3888             ((EditText) v.findViewById(R.id.password_edit)).setText(password);
3889         }
3890
3891         String titleText = title;
3892         if (titleText == null) {
3893             titleText = getText(R.string.sign_in_to).toString().replace(
3894                     "%s1", host).replace("%s2", realm);
3895         }
3896
3897         mHttpAuthHandler = handler;
3898         AlertDialog dialog = new AlertDialog.Builder(this)
3899                 .setTitle(titleText)
3900                 .setIcon(android.R.drawable.ic_dialog_alert)
3901                 .setView(v)
3902                 .setPositiveButton(R.string.action,
3903                         new DialogInterface.OnClickListener() {
3904                              public void onClick(DialogInterface dialog,
3905                                      int whichButton) {
3906                                 String nm = ((EditText) v
3907                                         .findViewById(R.id.username_edit))
3908                                         .getText().toString();
3909                                 String pw = ((EditText) v
3910                                         .findViewById(R.id.password_edit))
3911                                         .getText().toString();
3912                                 BrowserActivity.this.setHttpAuthUsernamePassword
3913                                         (host, realm, nm, pw);
3914                                 handler.proceed(nm, pw);
3915                                 mHttpAuthenticationDialog = null;
3916                                 mHttpAuthHandler = null;
3917                             }})
3918                 .setNegativeButton(R.string.cancel,
3919                         new DialogInterface.OnClickListener() {
3920                             public void onClick(DialogInterface dialog,
3921                                     int whichButton) {
3922                                 handler.cancel();
3923                                 BrowserActivity.this.resetTitleAndRevertLockIcon();
3924                                 mHttpAuthenticationDialog = null;
3925                                 mHttpAuthHandler = null;
3926                             }})
3927                 .setOnCancelListener(new DialogInterface.OnCancelListener() {
3928                         public void onCancel(DialogInterface dialog) {
3929                             handler.cancel();
3930                             BrowserActivity.this.resetTitleAndRevertLockIcon();
3931                             mHttpAuthenticationDialog = null;
3932                             mHttpAuthHandler = null;
3933                         }})
3934                 .create();
3935         // Make the IME appear when the dialog is displayed if applicable.
3936         dialog.getWindow().setSoftInputMode(
3937                 WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
3938         dialog.show();
3939         if (focusId != 0) {
3940             dialog.findViewById(focusId).requestFocus();
3941         } else {
3942             v.findViewById(R.id.username_edit).requestFocus();
3943         }
3944         mHttpAuthenticationDialog = dialog;
3945     }
3946
3947     public int getProgress() {
3948         WebView w = mTabControl.getCurrentWebView();
3949         if (w != null) {
3950             return w.getProgress();
3951         } else {
3952             return 100;
3953         }
3954     }
3955
3956     /**
3957      * Set HTTP authentication password.
3958      *
3959      * @param host The host for the password
3960      * @param realm The realm for the password
3961      * @param username The username for the password. If it is null, it means
3962      *            password can't be saved.
3963      * @param password The password
3964      */
3965     public void setHttpAuthUsernamePassword(String host, String realm,
3966                                             String username,
3967                                             String password) {
3968         WebView w = mTabControl.getCurrentWebView();
3969         if (w != null) {
3970             w.setHttpAuthUsernamePassword(host, realm, username, password);
3971         }
3972     }
3973
3974     /**
3975      * connectivity manager says net has come or gone... inform the user
3976      * @param up true if net has come up, false if net has gone down
3977      */
3978     public void onNetworkToggle(boolean up) {
3979         if (up == mIsNetworkUp) {
3980             return;
3981         } else if (up) {
3982             mIsNetworkUp = true;
3983             if (mAlertDialog != null) {
3984                 mAlertDialog.cancel();
3985                 mAlertDialog = null;
3986             }
3987         } else {
3988             mIsNetworkUp = false;
3989             if (mInLoad) {
3990                 createAndShowNetworkDialog();
3991            }
3992         }
3993         WebView w = mTabControl.getCurrentWebView();
3994         if (w != null) {
3995             w.setNetworkAvailable(up);
3996         }
3997     }
3998
3999     // This method shows the network dialog alerting the user that the net is
4000     // down. It will only show the dialog if mAlertDialog is null.
4001     private void createAndShowNetworkDialog() {
4002         if (mAlertDialog == null) {
4003             mAlertDialog = new AlertDialog.Builder(this)
4004                     .setTitle(R.string.loadSuspendedTitle)
4005                     .setMessage(R.string.loadSuspended)
4006                     .setPositiveButton(R.string.ok, null)
4007                     .show();
4008         }
4009     }
4010
4011     @Override
4012     protected void onActivityResult(int requestCode, int resultCode,
4013                                     Intent intent) {
4014         switch (requestCode) {
4015             case COMBO_PAGE:
4016                 if (resultCode == RESULT_OK && intent != null) {
4017                     String data = intent.getAction();
4018                     Bundle extras = intent.getExtras();
4019                     if (extras != null && extras.getBoolean("new_window", false)) {
4020                         openTab(data);
4021                     } else {
4022                         final TabControl.Tab currentTab =
4023                                 mTabControl.getCurrentTab();
4024                         dismissSubWindow(currentTab);
4025                         if (data != null && data.length() != 0) {
4026                             getTopWindow().loadUrl(data);
4027                         }
4028                     }
4029                 }
4030                 break;
4031             default:
4032                 break;
4033         }
4034         getTopWindow().requestFocus();
4035     }
4036
4037     /*
4038      * This method is called as a result of the user selecting the options
4039      * menu to see the download window, or when a download changes state. It
4040      * shows the download window ontop of the current window.
4041      */
4042     /* package */ void viewDownloads(Uri downloadRecord) {
4043         Intent intent = new Intent(this,
4044                 BrowserDownloadPage.class);
4045         intent.setData(downloadRecord);
4046         startActivityForResult(intent, this.DOWNLOAD_PAGE);
4047
4048     }
4049
4050     /**
4051      * Open the Go page.
4052      * @param startWithHistory If true, open starting on the history tab.
4053      *                         Otherwise, start with the bookmarks tab.
4054      */
4055     /* package */ void bookmarksOrHistoryPicker(boolean startWithHistory) {
4056         WebView current = mTabControl.getCurrentWebView();
4057         if (current == null) {
4058             return;
4059         }
4060         Intent intent = new Intent(this,
4061                 CombinedBookmarkHistoryActivity.class);
4062         String title = current.getTitle();
4063         String url = current.getUrl();
4064         // Just in case the user opens bookmarks before a page finishes loading
4065         // so the current history item, and therefore the page, is null.
4066         if (null == url) {
4067             url = mLastEnteredUrl;
4068             // This can happen.
4069             if (null == url) {
4070                 url = mSettings.getHomePage();
4071             }
4072         }
4073         // In case the web page has not yet received its associated title.
4074         if (title == null) {
4075             title = url;
4076         }
4077         intent.putExtra("title", title);
4078         intent.putExtra("url", url);
4079         // Disable opening in a new window if we have maxed out the windows
4080         intent.putExtra("disable_new_window", mTabControl.getTabCount()
4081                 >= TabControl.MAX_TABS);
4082         intent.putExtra("touch_icon_url", current.getTouchIconUrl());
4083         if (startWithHistory) {
4084             intent.putExtra(CombinedBookmarkHistoryActivity.STARTING_TAB,
4085                     CombinedBookmarkHistoryActivity.HISTORY_TAB);
4086         }
4087         startActivityForResult(intent, COMBO_PAGE);
4088     }
4089
4090     // Called when loading from context menu or LOAD_URL message
4091     private void loadURL(WebView view, String url) {
4092         // In case the user enters nothing.
4093         if (url != null && url.length() != 0 && view != null) {
4094             url = smartUrlFilter(url);
4095             if (!mWebViewClient.shouldOverrideUrlLoading(view, url)) {
4096                 view.loadUrl(url);
4097             }
4098         }
4099     }
4100
4101     private String smartUrlFilter(Uri inUri) {
4102         if (inUri != null) {
4103             return smartUrlFilter(inUri.toString());
4104         }
4105         return null;
4106     }
4107
4108
4109     // get window count
4110
4111     int getWindowCount(){
4112       if(mTabControl != null){
4113         return mTabControl.getTabCount();
4114       }
4115       return 0;
4116     }
4117
4118     protected static final Pattern ACCEPTED_URI_SCHEMA = Pattern.compile(
4119             "(?i)" + // switch on case insensitive matching
4120             "(" +    // begin group for schema
4121             "(?:http|https|file):\\/\\/" +
4122             "|(?:inline|data|about|content|javascript):" +
4123             ")" +
4124             "(.*)" );
4125
4126     /**
4127      * Attempts to determine whether user input is a URL or search
4128      * terms.  Anything with a space is passed to search.
4129      *
4130      * Converts to lowercase any mistakenly uppercased schema (i.e.,
4131      * "Http://" converts to "http://"
4132      *
4133      * @return Original or modified URL
4134      *
4135      */
4136     String smartUrlFilter(String url) {
4137
4138         String inUrl = url.trim();
4139         boolean hasSpace = inUrl.indexOf(' ') != -1;
4140
4141         Matcher matcher = ACCEPTED_URI_SCHEMA.matcher(inUrl);
4142         if (matcher.matches()) {
4143             // force scheme to lowercase
4144             String scheme = matcher.group(1);
4145             String lcScheme = scheme.toLowerCase();
4146             if (!lcScheme.equals(scheme)) {
4147                 inUrl = lcScheme + matcher.group(2);
4148             }
4149             if (hasSpace) {
4150                 inUrl = inUrl.replace(" ", "%20");
4151             }
4152             return inUrl;
4153         }
4154         if (hasSpace) {
4155             // FIXME: Is this the correct place to add to searches?
4156             // what if someone else calls this function?
4157             int shortcut = parseUrlShortcut(inUrl);
4158             if (shortcut != SHORTCUT_INVALID) {
4159                 Browser.addSearchUrl(mResolver, inUrl);
4160                 String query = inUrl.substring(2);
4161                 switch (shortcut) {
4162                 case SHORTCUT_GOOGLE_SEARCH:
4163                     return URLUtil.composeSearchUrl(query, QuickSearch_G, QUERY_PLACE_HOLDER);
4164                 case SHORTCUT_WIKIPEDIA_SEARCH:
4165                     return URLUtil.composeSearchUrl(query, QuickSearch_W, QUERY_PLACE_HOLDER);
4166                 case SHORTCUT_DICTIONARY_SEARCH:
4167                     return URLUtil.composeSearchUrl(query, QuickSearch_D, QUERY_PLACE_HOLDER);
4168                 case SHORTCUT_GOOGLE_MOBILE_LOCAL_SEARCH:
4169                     // FIXME: we need location in this case
4170                     return URLUtil.composeSearchUrl(query, QuickSearch_L, QUERY_PLACE_HOLDER);
4171                 }
4172             }
4173         } else {
4174             if (Regex.WEB_URL_PATTERN.matcher(inUrl).matches()) {
4175                 return URLUtil.guessUrl(inUrl);
4176             }
4177         }
4178
4179         Browser.addSearchUrl(mResolver, inUrl);
4180         return URLUtil.composeSearchUrl(inUrl, QuickSearch_G, QUERY_PLACE_HOLDER);
4181     }
4182
4183     /* package */ void setShouldShowErrorConsole(boolean flag) {
4184         if (flag == mShouldShowErrorConsole) {
4185             // Nothing to do.
4186             return;
4187         }
4188
4189         mShouldShowErrorConsole = flag;
4190
4191         ErrorConsoleView errorConsole = mTabControl.getCurrentErrorConsole(true);
4192
4193         if (flag) {
4194             // Setting the show state of the console will cause it's the layout to be inflated.
4195             if (errorConsole.numberOfErrors() > 0) {
4196                 errorConsole.showConsole(ErrorConsoleView.SHOW_MINIMIZED);
4197             } else {
4198                 errorConsole.showConsole(ErrorConsoleView.SHOW_NONE);
4199             }
4200
4201             // Now we can add it to the main view.
4202             mErrorConsoleContainer.addView(errorConsole,
4203                     new LinearLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT,
4204                                                   ViewGroup.LayoutParams.WRAP_CONTENT));
4205         } else {
4206             mErrorConsoleContainer.removeView(errorConsole);
4207         }
4208
4209     }
4210
4211     final static int LOCK_ICON_UNSECURE = 0;
4212     final static int LOCK_ICON_SECURE   = 1;
4213     final static int LOCK_ICON_MIXED    = 2;
4214
4215     private int mLockIconType = LOCK_ICON_UNSECURE;
4216     private int mPrevLockType = LOCK_ICON_UNSECURE;
4217
4218     private BrowserSettings mSettings;
4219     private TabControl      mTabControl;
4220     private ContentResolver mResolver;
4221     private FrameLayout     mContentView;
4222     private View            mCustomView;
4223     private FrameLayout     mCustomViewContainer;
4224     private WebChromeClient.CustomViewCallback mCustomViewCallback;
4225
4226     // FIXME, temp address onPrepareMenu performance problem. When we move everything out of
4227     // view, we should rewrite this.
4228     private int mCurrentMenuState = 0;
4229     private int mMenuState = R.id.MAIN_MENU;
4230     private int mOldMenuState = EMPTY_MENU;
4231     private static final int EMPTY_MENU = -1;
4232     private Menu mMenu;
4233
4234     private FindDialog mFindDialog;
4235     // Used to prevent chording to result in firing two shortcuts immediately
4236     // one after another.  Fixes bug 1211714.
4237     boolean mCanChord;
4238
4239     private boolean mInLoad;
4240     private boolean mIsNetworkUp;
4241
4242     private boolean mPageStarted;
4243     private boolean mActivityInPause = true;
4244
4245     private boolean mMenuIsDown;
4246
4247     private final KeyTracker mKeyTracker = new KeyTracker(this);
4248
4249     // As trackball doesn't send repeat down, we have to track it ourselves
4250     private boolean mTrackTrackball;
4251
4252     private static boolean mInTrace;
4253
4254     // Performance probe
4255     private static final int[] SYSTEM_CPU_FORMAT = new int[] {
4256             Process.PROC_SPACE_TERM | Process.PROC_COMBINE,
4257             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 1: user time
4258             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 2: nice time
4259             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 3: sys time
4260             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 4: idle time
4261             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 5: iowait time
4262             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 6: irq time
4263             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG  // 7: softirq time
4264     };
4265
4266     private long mStart;
4267     private long mProcessStart;
4268     private long mUserStart;
4269     private long mSystemStart;
4270     private long mIdleStart;
4271     private long mIrqStart;
4272
4273     private long mUiStart;
4274
4275     private Drawable    mMixLockIcon;
4276     private Drawable    mSecLockIcon;
4277
4278     /* hold a ref so we can auto-cancel if necessary */
4279     private AlertDialog mAlertDialog;
4280
4281     // Wait for credentials before loading google.com
4282     private ProgressDialog mCredsDlg;
4283
4284     // The up-to-date URL and title (these can be different from those stored
4285     // in WebView, since it takes some time for the information in WebView to
4286     // get updated)
4287     private String mUrl;
4288     private String mTitle;
4289
4290     // As PageInfo has different style for landscape / portrait, we have
4291     // to re-open it when configuration changed
4292     private AlertDialog mPageInfoDialog;
4293     private TabControl.Tab mPageInfoView;
4294     // If the Page-Info dialog is launched from the SSL-certificate-on-error
4295     // dialog, we should not just dismiss it, but should get back to the
4296     // SSL-certificate-on-error dialog. This flag is used to store this state
4297     private Boolean mPageInfoFromShowSSLCertificateOnError;
4298
4299     // as SSLCertificateOnError has different style for landscape / portrait,
4300     // we have to re-open it when configuration changed
4301     private AlertDialog mSSLCertificateOnErrorDialog;
4302     private WebView mSSLCertificateOnErrorView;
4303     private SslErrorHandler mSSLCertificateOnErrorHandler;
4304     private SslError mSSLCertificateOnErrorError;
4305
4306     // as SSLCertificate has different style for landscape / portrait, we
4307     // have to re-open it when configuration changed
4308     private AlertDialog mSSLCertificateDialog;
4309     private TabControl.Tab mSSLCertificateView;
4310
4311     // as HttpAuthentication has different style for landscape / portrait, we
4312     // have to re-open it when configuration changed
4313     private AlertDialog mHttpAuthenticationDialog;
4314     private HttpAuthHandler mHttpAuthHandler;
4315
4316     /*package*/ static final FrameLayout.LayoutParams COVER_SCREEN_PARAMS =
4317                                             new FrameLayout.LayoutParams(
4318                                             ViewGroup.LayoutParams.FILL_PARENT,
4319                                             ViewGroup.LayoutParams.FILL_PARENT);
4320     /*package*/ static final FrameLayout.LayoutParams COVER_SCREEN_GRAVITY_CENTER =
4321                                             new FrameLayout.LayoutParams(
4322                                             ViewGroup.LayoutParams.FILL_PARENT,
4323                                             ViewGroup.LayoutParams.FILL_PARENT,
4324                                             Gravity.CENTER);
4325     // Google search
4326     final static String QuickSearch_G = "http://www.google.com/m?q=%s";
4327     // Wikipedia search
4328     final static String QuickSearch_W = "http://en.wikipedia.org/w/index.php?search=%s&go=Go";
4329     // Dictionary search
4330     final static String QuickSearch_D = "http://dictionary.reference.com/search?q=%s";
4331     // Google Mobile Local search
4332     final static String QuickSearch_L = "http://www.google.com/m/search?site=local&q=%s&near=mountain+view";
4333
4334     final static String QUERY_PLACE_HOLDER = "%s";
4335
4336     // "source" parameter for Google search through search key
4337     final static String GOOGLE_SEARCH_SOURCE_SEARCHKEY = "browser-key";
4338     // "source" parameter for Google search through goto menu
4339     final static String GOOGLE_SEARCH_SOURCE_GOTO = "browser-goto";
4340     // "source" parameter for Google search through simplily type
4341     final static String GOOGLE_SEARCH_SOURCE_TYPE = "browser-type";
4342     // "source" parameter for Google search suggested by the browser
4343     final static String GOOGLE_SEARCH_SOURCE_SUGGEST = "browser-suggest";
4344     // "source" parameter for Google search from unknown source
4345     final static String GOOGLE_SEARCH_SOURCE_UNKNOWN = "unknown";
4346
4347     private final static String LOGTAG = "browser";
4348
4349     private String mLastEnteredUrl;
4350
4351     private PowerManager.WakeLock mWakeLock;
4352     private final static int WAKELOCK_TIMEOUT = 5 * 60 * 1000; // 5 minutes
4353
4354     private Toast mStopToast;
4355
4356     private TitleBar mTitleBar;
4357
4358     private LinearLayout mErrorConsoleContainer = null;
4359     private boolean mShouldShowErrorConsole = false;
4360
4361     // As the ids are dynamically created, we can't guarantee that they will
4362     // be in sequence, so this static array maps ids to a window number.
4363     final static private int[] WINDOW_SHORTCUT_ID_ARRAY =
4364     { R.id.window_one_menu_id, R.id.window_two_menu_id, R.id.window_three_menu_id,
4365       R.id.window_four_menu_id, R.id.window_five_menu_id, R.id.window_six_menu_id,
4366       R.id.window_seven_menu_id, R.id.window_eight_menu_id };
4367
4368     // monitor platform changes
4369     private IntentFilter mNetworkStateChangedFilter;
4370     private BroadcastReceiver mNetworkStateIntentReceiver;
4371
4372     private BroadcastReceiver mPackageInstallationReceiver;
4373
4374     // activity requestCode
4375     final static int COMBO_PAGE                 = 1;
4376     final static int DOWNLOAD_PAGE              = 2;
4377     final static int PREFERENCES_PAGE           = 3;
4378
4379     // the default <video> poster
4380     private Bitmap mDefaultVideoPoster;
4381     // the video progress view
4382     private View mVideoProgressView;
4383
4384     /**
4385      * A UrlData class to abstract how the content will be set to WebView.
4386      * This base class uses loadUrl to show the content.
4387      */
4388     private static class UrlData {
4389         String mUrl;
4390         byte[] mPostData;
4391
4392         UrlData(String url) {
4393             this.mUrl = url;
4394         }
4395
4396         void setPostData(byte[] postData) {
4397             mPostData = postData;
4398         }
4399
4400         boolean isEmpty() {
4401             return mUrl == null || mUrl.length() == 0;
4402         }
4403
4404         public void loadIn(WebView webView) {
4405             if (mPostData != null) {
4406                 webView.postUrl(mUrl, mPostData);
4407             } else {
4408                 webView.loadUrl(mUrl);
4409             }
4410         }
4411     };
4412
4413     /**
4414      * A subclass of UrlData class that can display inlined content using
4415      * {@link WebView#loadDataWithBaseURL(String, String, String, String, String)}.
4416      */
4417     private static class InlinedUrlData extends UrlData {
4418         InlinedUrlData(String inlined, String mimeType, String encoding, String failUrl) {
4419             super(failUrl);
4420             mInlined = inlined;
4421             mMimeType = mimeType;
4422             mEncoding = encoding;
4423         }
4424         String mMimeType;
4425         String mInlined;
4426         String mEncoding;
4427         @Override
4428         boolean isEmpty() {
4429             return mInlined == null || mInlined.length() == 0 || super.isEmpty();
4430         }
4431
4432         @Override
4433         public void loadIn(WebView webView) {
4434             webView.loadDataWithBaseURL(null, mInlined, mMimeType, mEncoding, mUrl);
4435         }
4436     }
4437
4438     /* package */ static final UrlData EMPTY_URL_DATA = new UrlData(null);
4439 }