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 android.app.Activity;
  20 import android.app.AlertDialog;
  21 import android.app.ProgressDialog;
  22 import android.app.SearchManager;
  23 import android.content.ActivityNotFoundException;
  24 import android.content.BroadcastReceiver;
  25 import android.content.ComponentName;
  26 import android.content.ContentResolver;
  27 import android.content.ContentUris;
  28 import android.content.ContentValues;
  29 import android.content.Context;
  30 import android.content.DialogInterface;
  31 import android.content.Intent;
  32 import android.content.IntentFilter;
  33 import android.content.ServiceConnection;
  34 import android.content.pm.PackageInfo;
  35 import android.content.pm.PackageManager;
  36 import android.content.pm.ResolveInfo;
  37 import android.content.res.Configuration;
  38 import android.content.res.Resources;
  39 import android.database.Cursor;
  40 import android.graphics.Bitmap;
  41 import android.graphics.BitmapFactory;
  42 import android.graphics.Canvas;
  43 import android.graphics.Picture;
  44 import android.graphics.PixelFormat;
  45 import android.graphics.Rect;
  46 import android.graphics.drawable.Drawable;
  47 import android.net.ConnectivityManager;
  48 import android.net.NetworkInfo;
  49 import android.net.Uri;
  50 import android.net.WebAddress;
  51 import android.net.http.SslCertificate;
  52 import android.net.http.SslError;
  53 import android.os.AsyncTask;
  54 import android.os.Bundle;
  55 import android.os.Debug;
  56 import android.os.Environment;
  57 import android.os.Handler;
  58 import android.os.IBinder;
  59 import android.os.Message;
  60 import android.os.PowerManager;
  61 import android.os.Process;
  62 import android.os.RemoteException;
  63 import android.os.ServiceManager;
  64 import android.os.SystemClock;
  65 import android.provider.Browser;
  66 import android.provider.ContactsContract;
  67 import android.provider.ContactsContract.Intents.Insert;
  68 import android.provider.Downloads;
  69 import android.provider.MediaStore;
  70 import android.text.IClipboard;
  71 import android.text.TextUtils;
  72 import android.text.format.DateFormat;
  73 import android.util.AttributeSet;
  74 import android.util.Log;
  75 import android.view.ContextMenu;
  76 import android.view.Gravity;
  77 import android.view.KeyEvent;
  78 import android.view.LayoutInflater;
  79 import android.view.Menu;
  80 import android.view.MenuInflater;
  81 import android.view.MenuItem;
  82 import android.view.View;
  83 import android.view.ViewGroup;
  84 import android.view.Window;
  85 import android.view.WindowManager;
  86 import android.view.ContextMenu.ContextMenuInfo;
  87 import android.view.MenuItem.OnMenuItemClickListener;
  88 import android.webkit.CookieManager;
  89 import android.webkit.CookieSyncManager;
  90 import android.webkit.DownloadListener;
  91 import android.webkit.HttpAuthHandler;
  92 import android.webkit.PluginManager;
  93 import android.webkit.SslErrorHandler;
  94 import android.webkit.URLUtil;
  95 import android.webkit.ValueCallback;
  96 import android.webkit.WebChromeClient;
  97 import android.webkit.WebHistoryItem;
  98 import android.webkit.WebIconDatabase;
  99 import android.webkit.WebView;
 100 import android.widget.EditText;
 101 import android.widget.FrameLayout;
 102 import android.widget.LinearLayout;
 103 import android.widget.TextView;
 104 import android.widget.Toast;
 105
 106 import com.android.common.Patterns;
 107
 108 import com.google.android.googleapps.IGoogleLoginService;
 109 import com.google.android.googlelogin.GoogleLoginServiceConstants;
 110
 111 import java.io.ByteArrayOutputStream;
 112 import java.io.File;
 113 import java.io.IOException;
 114 import java.io.InputStream;
 115 import java.net.MalformedURLException;
 116 import java.net.URI;
 117 import java.net.URISyntaxException;
 118 import java.net.URL;
 119 import java.net.URLEncoder;
 120 import java.text.ParseException;
 121 import java.util.Date;
 122 import java.util.HashMap;
 123 import java.util.regex.Matcher;
 124 import java.util.regex.Pattern;
 125
 126 public class BrowserActivity extends Activity
 127     implements View.OnCreateContextMenuListener,
 128         DownloadListener {
 129
 130     /* Define some aliases to make these debugging flags easier to refer to.
 131      * This file imports android.provider.Browser, so we can't just refer to "Browser.DEBUG".
 132      */
 133     private final static boolean DEBUG = com.android.browser.Browser.DEBUG;
 134     private final static boolean LOGV_ENABLED = com.android.browser.Browser.LOGV_ENABLED;
 135     private final static boolean LOGD_ENABLED = com.android.browser.Browser.LOGD_ENABLED;
 136
 137     private IGoogleLoginService mGls = null;
 138     private ServiceConnection mGlsConnection = null;
 139
 140     // These are single-character shortcuts for searching popular sources.
 141     private static final int SHORTCUT_INVALID = 0;
 142     private static final int SHORTCUT_GOOGLE_SEARCH = 1;
 143     private static final int SHORTCUT_WIKIPEDIA_SEARCH = 2;
 144     private static final int SHORTCUT_DICTIONARY_SEARCH = 3;
 145     private static final int SHORTCUT_GOOGLE_MOBILE_LOCAL_SEARCH = 4;
 146
 147     private void setupHomePage() {
 148         final Runnable getAccount = new Runnable() {
 149             public void run() {
 150                 // Lower priority
 151                 Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
 152                 // get the default home page
 153                 String homepage = mSettings.getHomePage();
 154
 155                 try {
 156                     if (mGls == null) return;
 157
 158                     if (!homepage.startsWith("http://www.google.")) return;
 159                     if (homepage.indexOf('?') == -1) return;
 160
 161                     String hostedUser = mGls.getAccount(GoogleLoginServiceConstants.PREFER_HOSTED);
 162                     String googleUser = mGls.getAccount(GoogleLoginServiceConstants.REQUIRE_GOOGLE);
 163
 164                     // three cases:
 165                     //
 166                     //   hostedUser == googleUser
 167                     //      The device has only a google account
 168                     //
 169                     //   hostedUser != googleUser
 170                     //      The device has a hosted account and a google account
 171                     //
 172                     //   hostedUser != null, googleUser == null
 173                     //      The device has only a hosted account (so far)
 174
 175                     // developers might have no accounts at all
 176                     if (hostedUser == null) return;
 177
 178                     if (googleUser == null || !hostedUser.equals(googleUser)) {
 179                         String domain = hostedUser.substring(hostedUser.lastIndexOf('@')+1);
 180                         homepage = homepage.replace("?", "/a/" + domain + "?");
 181                     }
 182                 } catch (RemoteException ignore) {
 183                     // Login service died; carry on
 184                 } catch (RuntimeException ignore) {
 185                     // Login service died; carry on
 186                 } finally {
 187                     finish(homepage);
 188                 }
 189             }
 190
 191             private void finish(final String homepage) {
 192                 mHandler.post(new Runnable() {
 193                     public void run() {
 194                         mSettings.setHomePage(BrowserActivity.this, homepage);
 195                         resumeAfterCredentials();
 196
 197                         // as this is running in a separate thread,
 198                         // BrowserActivity's onDestroy() may have been called,
 199                         // which also calls unbindService().
 200                         if (mGlsConnection != null) {
 201                             // we no longer need to keep GLS open
 202                             unbindService(mGlsConnection);
 203                             mGlsConnection = null;
 204                         }
 205                     } });
 206             } };
 207
 208         final boolean[] done = { false };
 209
 210         // Open a connection to the Google Login Service.  The first
 211         // time the connection is established, set up the homepage depending on
 212         // the account in a background thread.
 213         mGlsConnection = new ServiceConnection() {
 214             public void onServiceConnected(ComponentName className, IBinder service) {
 215                 mGls = IGoogleLoginService.Stub.asInterface(service);
 216                 if (done[0] == false) {
 217                     done[0] = true;
 218                     Thread account = new Thread(getAccount);
 219                     account.setName("GLSAccount");
 220                     account.start();
 221                 }
 222             }
 223             public void onServiceDisconnected(ComponentName className) {
 224                 mGls = null;
 225             }
 226         };
 227
 228         bindService(GoogleLoginServiceConstants.SERVICE_INTENT,
 229                     mGlsConnection, Context.BIND_AUTO_CREATE);
 230     }
 231
 232     private static class ClearThumbnails extends AsyncTask<File, Void, Void> {
 233         @Override
 234         public Void doInBackground(File... files) {
 235             if (files != null) {
 236                 for (File f : files) {
 237                     if (!f.delete()) {
 238                       Log.e(LOGTAG, f.getPath() + " was not deleted");
 239                     }
 240                 }
 241             }
 242             return null;
 243         }
 244     }
 245
 246     /**
 247      * This layout holds everything you see below the status bar, including the
 248      * error console, the custom view container, and the webviews.
 249      */
 250     private FrameLayout mBrowserFrameLayout;
 251
 252     @Override
 253     public void onCreate(Bundle icicle) {
 254         if (LOGV_ENABLED) {
 255             Log.v(LOGTAG, this + " onStart");
 256         }
 257         super.onCreate(icicle);
 258         // test the browser in OpenGL
 259         // requestWindowFeature(Window.FEATURE_OPENGL);
 260
 261         setDefaultKeyMode(DEFAULT_KEYS_SEARCH_LOCAL);
 262
 263         mResolver = getContentResolver();
 264
 265         // If this was a web search request, pass it on to the default web
 266         // search provider and finish this activity.
 267         if (handleWebSearchIntent(getIntent())) {
 268             finish();
 269             return;
 270         }
 271
 272         mSecLockIcon = Resources.getSystem().getDrawable(
 273                 android.R.drawable.ic_secure);
 274         mMixLockIcon = Resources.getSystem().getDrawable(
 275                 android.R.drawable.ic_partial_secure);
 276
 277         FrameLayout frameLayout = (FrameLayout) getWindow().getDecorView()
 278                 .findViewById(com.android.internal.R.id.content);
 279         mBrowserFrameLayout = (FrameLayout) LayoutInflater.from(this)
 280                 .inflate(R.layout.custom_screen, null);
 281         mContentView = (FrameLayout) mBrowserFrameLayout.findViewById(
 282                 R.id.main_content);
 283         mErrorConsoleContainer = (LinearLayout) mBrowserFrameLayout
 284                 .findViewById(R.id.error_console);
 285         mCustomViewContainer = (FrameLayout) mBrowserFrameLayout
 286                 .findViewById(R.id.fullscreen_custom_content);
 287         frameLayout.addView(mBrowserFrameLayout, COVER_SCREEN_PARAMS);
 288         mTitleBar = new TitleBar(this);
 289         mFakeTitleBar = new TitleBar(this);
 290
 291         // Create the tab control and our initial tab
 292         mTabControl = new TabControl(this);
 293
 294         // Open the icon database and retain all the bookmark urls for favicons
 295         retainIconsOnStartup();
 296
 297         // Keep a settings instance handy.
 298         mSettings = BrowserSettings.getInstance();
 299         mSettings.setTabControl(mTabControl);
 300         mSettings.loadFromDb(this);
 301
 302         PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 303         mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "Browser");
 304
 305         /* enables registration for changes in network status from
 306            http stack */
 307         mNetworkStateChangedFilter = new IntentFilter();
 308         mNetworkStateChangedFilter.addAction(
 309                 ConnectivityManager.CONNECTIVITY_ACTION);
 310         mNetworkStateIntentReceiver = new BroadcastReceiver() {
 311                 @Override
 312                 public void onReceive(Context context, Intent intent) {
 313                     if (intent.getAction().equals(
 314                             ConnectivityManager.CONNECTIVITY_ACTION)) {
 315                         boolean noConnectivity = intent.getBooleanExtra(
 316                                 ConnectivityManager.EXTRA_NO_CONNECTIVITY, false);
 317                         onNetworkToggle(!noConnectivity);
 318                     }
 319                 }
 320             };
 321
 322         IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);
 323         filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
 324         filter.addDataScheme("package");
 325         mPackageInstallationReceiver = new BroadcastReceiver() {
 326             @Override
 327             public void onReceive(Context context, Intent intent) {
 328                 final String action = intent.getAction();
 329                 final String packageName = intent.getData()
 330                         .getSchemeSpecificPart();
 331                 final boolean replacing = intent.getBooleanExtra(
 332                         Intent.EXTRA_REPLACING, false);
 333                 if (Intent.ACTION_PACKAGE_REMOVED.equals(action) && replacing) {
 334                     // if it is replacing, refreshPlugins() when adding
 335                     return;
 336                 }
 337                 PackageManager pm = BrowserActivity.this.getPackageManager();
 338                 PackageInfo pkgInfo = null;
 339                 try {
 340                     pkgInfo = pm.getPackageInfo(packageName,
 341                             PackageManager.GET_PERMISSIONS);
 342                 } catch (PackageManager.NameNotFoundException e) {
 343                     return;
 344                 }
 345                 if (pkgInfo != null) {
 346                     String permissions[] = pkgInfo.requestedPermissions;
 347                     if (permissions == null) {
 348                         return;
 349                     }
 350                     boolean permissionOk = false;
 351                     for (String permit : permissions) {
 352                         if (PluginManager.PLUGIN_PERMISSION.equals(permit)) {
 353                             permissionOk = true;
 354                             break;
 355                         }
 356                     }
 357                     if (permissionOk) {
 358                         PluginManager.getInstance(BrowserActivity.this)
 359                                 .refreshPlugins(
 360                                         Intent.ACTION_PACKAGE_ADDED
 361                                                 .equals(action));
 362                     }
 363                 }
 364             }
 365         };
 366         registerReceiver(mPackageInstallationReceiver, filter);
 367
 368         if (!mTabControl.restoreState(icicle)) {
 369             // clear up the thumbnail directory if we can't restore the state as
 370             // none of the files in the directory are referenced any more.
 371             new ClearThumbnails().execute(
 372                     mTabControl.getThumbnailDir().listFiles());
 373             // there is no quit on Android. But if we can't restore the state,
 374             // we can treat it as a new Browser, remove the old session cookies.
 375             CookieManager.getInstance().removeSessionCookie();
 376             final Intent intent = getIntent();
 377             final Bundle extra = intent.getExtras();
 378             // Create an initial tab.
 379             // If the intent is ACTION_VIEW and data is not null, the Browser is
 380             // invoked to view the content by another application. In this case,
 381             // the tab will be close when exit.
 382             UrlData urlData = getUrlDataFromIntent(intent);
 383
 384             final Tab t = mTabControl.createNewTab(
 385                     Intent.ACTION_VIEW.equals(intent.getAction()) &&
 386                     intent.getData() != null,
 387                     intent.getStringExtra(Browser.EXTRA_APPLICATION_ID), urlData.mUrl);
 388             mTabControl.setCurrentTab(t);
 389             attachTabToContentView(t);
 390             WebView webView = t.getWebView();
 391             if (extra != null) {
 392                 int scale = extra.getInt(Browser.INITIAL_ZOOM_LEVEL, 0);
 393                 if (scale > 0 && scale <= 1000) {
 394                     webView.setInitialScale(scale);
 395                 }
 396             }
 397             // If we are not restoring from an icicle, then there is a high
 398             // likely hood this is the first run. So, check to see if the
 399             // homepage needs to be configured and copy any plugins from our
 400             // asset directory to the data partition.
 401             if ((extra == null || !extra.getBoolean("testing"))
 402                     && !mSettings.isLoginInitialized()) {
 403                 setupHomePage();
 404             }
 405
 406             if (urlData.isEmpty()) {
 407                 if (mSettings.isLoginInitialized()) {
 408                     webView.loadUrl(mSettings.getHomePage());
 409                 } else {
 410                     waitForCredentials();
 411                 }
 412             } else {
 413                 if (extra != null) {
 414                     urlData.setPostData(extra
 415                             .getByteArray(Browser.EXTRA_POST_DATA));
 416                 }
 417                 urlData.loadIn(webView);
 418             }
 419         } else {
 420             // TabControl.restoreState() will create a new tab even if
 421             // restoring the state fails.
 422             attachTabToContentView(mTabControl.getCurrentTab());
 423         }
 424
 425         // Read JavaScript flags if it exists.
 426         String jsFlags = mSettings.getJsFlags();
 427         if (jsFlags.trim().length() != 0) {
 428             mTabControl.getCurrentWebView().setJsFlags(jsFlags);
 429         }
 430     }
 431
 432     @Override
 433     protected void onNewIntent(Intent intent) {
 434         Tab current = mTabControl.getCurrentTab();
 435         // When a tab is closed on exit, the current tab index is set to -1.
 436         // Reset before proceed as Browser requires the current tab to be set.
 437         if (current == null) {
 438             // Try to reset the tab in case the index was incorrect.
 439             current = mTabControl.getTab(0);
 440             if (current == null) {
 441                 // No tabs at all so just ignore this intent.
 442                 return;
 443             }
 444             mTabControl.setCurrentTab(current);
 445             attachTabToContentView(current);
 446             resetTitleAndIcon(current.getWebView());
 447         }
 448         final String action = intent.getAction();
 449         final int flags = intent.getFlags();
 450         if (Intent.ACTION_MAIN.equals(action) ||
 451                 (flags & Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY) != 0) {
 452             // just resume the browser
 453             return;
 454         }
 455         if (Intent.ACTION_VIEW.equals(action)
 456                 || Intent.ACTION_SEARCH.equals(action)
 457                 || MediaStore.INTENT_ACTION_MEDIA_SEARCH.equals(action)
 458                 || Intent.ACTION_WEB_SEARCH.equals(action)) {
 459             // If this was a search request (e.g. search query directly typed into the address bar),
 460             // pass it on to the default web search provider.
 461             if (handleWebSearchIntent(intent)) {
 462                 return;
 463             }
 464
 465             UrlData urlData = getUrlDataFromIntent(intent);
 466             if (urlData.isEmpty()) {
 467                 urlData = new UrlData(mSettings.getHomePage());
 468             }
 469             urlData.setPostData(intent
 470                     .getByteArrayExtra(Browser.EXTRA_POST_DATA));
 471
 472             final String appId = intent
 473                     .getStringExtra(Browser.EXTRA_APPLICATION_ID);
 474             if (Intent.ACTION_VIEW.equals(action)
 475                     && !getPackageName().equals(appId)
 476                     && (flags & Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT) != 0) {
 477                 Tab appTab = mTabControl.getTabFromId(appId);
 478                 if (appTab != null) {
 479                     Log.i(LOGTAG, "Reusing tab for " + appId);
 480                     // Dismiss the subwindow if applicable.
 481                     dismissSubWindow(appTab);
 482                     // Since we might kill the WebView, remove it from the
 483                     // content view first.
 484                     removeTabFromContentView(appTab);
 485                     // Recreate the main WebView after destroying the old one.
 486                     // If the WebView has the same original url and is on that
 487                     // page, it can be reused.
 488                     boolean needsLoad =
 489                             mTabControl.recreateWebView(appTab, urlData.mUrl);
 490
 491                     if (current != appTab) {
 492                         switchToTab(mTabControl.getTabIndex(appTab));
 493                         if (needsLoad) {
 494                             urlData.loadIn(appTab.getWebView());
 495                         }
 496                     } else {
 497                         // If the tab was the current tab, we have to attach
 498                         // it to the view system again.
 499                         attachTabToContentView(appTab);
 500                         if (needsLoad) {
 501                             urlData.loadIn(appTab.getWebView());
 502                         }
 503                     }
 504                     return;
 505                 } else {
 506                     // No matching application tab, try to find a regular tab
 507                     // with a matching url.
 508                     appTab = mTabControl.findUnusedTabWithUrl(urlData.mUrl);
 509                     if (appTab != null) {
 510                         if (current != appTab) {
 511                             switchToTab(mTabControl.getTabIndex(appTab));
 512                         }
 513                         // Otherwise, we are already viewing the correct tab.
 514                     } else {
 515                         // if FLAG_ACTIVITY_BROUGHT_TO_FRONT flag is on, the url
 516                         // will be opened in a new tab unless we have reached
 517                         // MAX_TABS. Then the url will be opened in the current
 518                         // tab. If a new tab is created, it will have "true" for
 519                         // exit on close.
 520                         openTabAndShow(urlData, true, appId);
 521                     }
 522                 }
 523             } else {
 524                 if (!urlData.isEmpty()
 525                         && urlData.mUrl.startsWith("about:debug")) {
 526                     if ("about:debug.dom".equals(urlData.mUrl)) {
 527                         current.getWebView().dumpDomTree(false);
 528                     } else if ("about:debug.dom.file".equals(urlData.mUrl)) {
 529                         current.getWebView().dumpDomTree(true);
 530                     } else if ("about:debug.render".equals(urlData.mUrl)) {
 531                         current.getWebView().dumpRenderTree(false);
 532                     } else if ("about:debug.render.file".equals(urlData.mUrl)) {
 533                         current.getWebView().dumpRenderTree(true);
 534                     } else if ("about:debug.display".equals(urlData.mUrl)) {
 535                         current.getWebView().dumpDisplayTree();
 536                     } else {
 537                         mSettings.toggleDebugSettings();
 538                     }
 539                     return;
 540                 }
 541                 // Get rid of the subwindow if it exists
 542                 dismissSubWindow(current);
 543                 urlData.loadIn(current.getWebView());
 544             }
 545         }
 546     }
 547
 548     private int parseUrlShortcut(String url) {
 549         if (url == null) return SHORTCUT_INVALID;
 550
 551         // FIXME: quick search, need to be customized by setting
 552         if (url.length() > 2 && url.charAt(1) == ' ') {
 553             switch (url.charAt(0)) {
 554             case 'g': return SHORTCUT_GOOGLE_SEARCH;
 555             case 'w': return SHORTCUT_WIKIPEDIA_SEARCH;
 556             case 'd': return SHORTCUT_DICTIONARY_SEARCH;
 557             case 'l': return SHORTCUT_GOOGLE_MOBILE_LOCAL_SEARCH;
 558             }
 559         }
 560         return SHORTCUT_INVALID;
 561     }
 562
 563     /**
 564      * Launches the default web search activity with the query parameters if the given intent's data
 565      * are identified as plain search terms and not URLs/shortcuts.
 566      * @return true if the intent was handled and web search activity was launched, false if not.
 567      */
 568     private boolean handleWebSearchIntent(Intent intent) {
 569         if (intent == null) return false;
 570
 571         String url = null;
 572         final String action = intent.getAction();
 573         if (Intent.ACTION_VIEW.equals(action)) {
 574             Uri data = intent.getData();
 575             if (data != null) url = data.toString();
 576         } else if (Intent.ACTION_SEARCH.equals(action)
 577                 || MediaStore.INTENT_ACTION_MEDIA_SEARCH.equals(action)
 578                 || Intent.ACTION_WEB_SEARCH.equals(action)) {
 579             url = intent.getStringExtra(SearchManager.QUERY);
 580         }
 581         return handleWebSearchRequest(url, intent.getBundleExtra(SearchManager.APP_DATA),
 582                 intent.getStringExtra(SearchManager.EXTRA_DATA_KEY));
 583     }
 584
 585     /**
 586      * Launches the default web search activity with the query parameters if the given url string
 587      * was identified as plain search terms and not URL/shortcut.
 588      * @return true if the request was handled and web search activity was launched, false if not.
 589      */
 590     private boolean handleWebSearchRequest(String inUrl, Bundle appData, String extraData) {
 591         if (inUrl == null) return false;
 592
 593         // In general, we shouldn't modify URL from Intent.
 594         // But currently, we get the user-typed URL from search box as well.
 595         String url = fixUrl(inUrl).trim();
 596
 597         // URLs and site specific search shortcuts are handled by the regular flow of control, so
 598         // return early.
 599         if (Patterns.WEB_URL.matcher(url).matches()
 600                 || ACCEPTED_URI_SCHEMA.matcher(url).matches()
 601                 || parseUrlShortcut(url) != SHORTCUT_INVALID) {
 602             return false;
 603         }
 604
 605         Browser.updateVisitedHistory(mResolver, url, false);
 606         Browser.addSearchUrl(mResolver, url);
 607
 608         Intent intent = new Intent(Intent.ACTION_WEB_SEARCH);
 609         intent.addCategory(Intent.CATEGORY_DEFAULT);
 610         intent.putExtra(SearchManager.QUERY, url);
 611         if (appData != null) {
 612             intent.putExtra(SearchManager.APP_DATA, appData);
 613         }
 614         if (extraData != null) {
 615             intent.putExtra(SearchManager.EXTRA_DATA_KEY, extraData);
 616         }
 617         intent.putExtra(Browser.EXTRA_APPLICATION_ID, getPackageName());
 618         startActivity(intent);
 619
 620         return true;
 621     }
 622
 623     private UrlData getUrlDataFromIntent(Intent intent) {
 624         String url = null;
 625         if (intent != null) {
 626             final String action = intent.getAction();
 627             if (Intent.ACTION_VIEW.equals(action)) {
 628                 url = smartUrlFilter(intent.getData());
 629                 if (url != null && url.startsWith("content:")) {
 630                     /* Append mimetype so webview knows how to display */
 631                     String mimeType = intent.resolveType(getContentResolver());
 632                     if (mimeType != null) {
 633                         url += "?" + mimeType;
 634                     }
 635                 }
 636                 if ("inline:".equals(url)) {
 637                     return new InlinedUrlData(
 638                             intent.getStringExtra(Browser.EXTRA_INLINE_CONTENT),
 639                             intent.getType(),
 640                             intent.getStringExtra(Browser.EXTRA_INLINE_ENCODING),
 641                             intent.getStringExtra(Browser.EXTRA_INLINE_FAILURL));
 642                 }
 643             } else if (Intent.ACTION_SEARCH.equals(action)
 644                     || MediaStore.INTENT_ACTION_MEDIA_SEARCH.equals(action)
 645                     || Intent.ACTION_WEB_SEARCH.equals(action)) {
 646                 url = intent.getStringExtra(SearchManager.QUERY);
 647                 if (url != null) {
 648                     mLastEnteredUrl = url;
 649                     Browser.updateVisitedHistory(mResolver, url, false);
 650                     // In general, we shouldn't modify URL from Intent.
 651                     // But currently, we get the user-typed URL from search box as well.
 652                     url = fixUrl(url);
 653                     url = smartUrlFilter(url);
 654                     String searchSource = "&source=android-" + GOOGLE_SEARCH_SOURCE_SUGGEST + "&";
 655                     if (url.contains(searchSource)) {
 656                         String source = null;
 657                         final Bundle appData = intent.getBundleExtra(SearchManager.APP_DATA);
 658                         if (appData != null) {
 659                             source = appData.getString(SearchManager.SOURCE);
 660                         }
 661                         if (TextUtils.isEmpty(source)) {
 662                             source = GOOGLE_SEARCH_SOURCE_UNKNOWN;
 663                         }
 664                         url = url.replace(searchSource, "&source=android-"+source+"&");
 665                     }
 666                 }
 667             }
 668         }
 669         return new UrlData(url);
 670     }
 671
 672     /* package */ static String fixUrl(String inUrl) {
 673         // FIXME: Converting the url to lower case
 674         // duplicates functionality in smartUrlFilter().
 675         // However, changing all current callers of fixUrl to
 676         // call smartUrlFilter in addition may have unwanted
 677         // consequences, and is deferred for now.
 678         int colon = inUrl.indexOf(':');
 679         boolean allLower = true;
 680         for (int index = 0; index < colon; index++) {
 681             char ch = inUrl.charAt(index);
 682             if (!Character.isLetter(ch)) {
 683                 break;
 684             }
 685             allLower &= Character.isLowerCase(ch);
 686             if (index == colon - 1 && !allLower) {
 687                 inUrl = inUrl.substring(0, colon).toLowerCase()
 688                         + inUrl.substring(colon);
 689             }
 690         }
 691         if (inUrl.startsWith("http://") || inUrl.startsWith("https://"))
 692             return inUrl;
 693         if (inUrl.startsWith("http:") ||
 694                 inUrl.startsWith("https:")) {
 695             if (inUrl.startsWith("http:/") || inUrl.startsWith("https:/")) {
 696                 inUrl = inUrl.replaceFirst("/", "//");
 697             } else inUrl = inUrl.replaceFirst(":", "://");
 698         }
 699         return inUrl;
 700     }
 701
 702     @Override
 703     protected void onResume() {
 704         super.onResume();
 705         if (LOGV_ENABLED) {
 706             Log.v(LOGTAG, "BrowserActivity.onResume: this=" + this);
 707         }
 708
 709         if (!mActivityInPause) {
 710             Log.e(LOGTAG, "BrowserActivity is already resumed.");
 711             return;
 712         }
 713
 714         mTabControl.resumeCurrentTab();
 715         mActivityInPause = false;
 716         resumeWebViewTimers();
 717
 718         if (mWakeLock.isHeld()) {
 719             mHandler.removeMessages(RELEASE_WAKELOCK);
 720             mWakeLock.release();
 721         }
 722
 723         if (mCredsDlg != null) {
 724             if (!mHandler.hasMessages(CANCEL_CREDS_REQUEST)) {
 725              // In case credential request never comes back
 726                 mHandler.sendEmptyMessageDelayed(CANCEL_CREDS_REQUEST, 6000);
 727             }
 728         }
 729
 730         registerReceiver(mNetworkStateIntentReceiver,
 731                          mNetworkStateChangedFilter);
 732         WebView.enablePlatformNotifications();
 733     }
 734
 735     /**
 736      * Since the actual title bar is embedded in the WebView, and removing it
 737      * would change its appearance, use a different TitleBar to show overlayed
 738      * at the top of the screen, when the menu is open or the page is loading.
 739      */
 740     private TitleBar mFakeTitleBar;
 741
 742     /**
 743      * Holder for the fake title bar.  It will have a foreground shadow, as well
 744      * as a white background, so the fake title bar looks like the real one.
 745      */
 746     private ViewGroup mFakeTitleBarHolder;
 747
 748     /**
 749      * Layout parameters for the fake title bar within mFakeTitleBarHolder
 750      */
 751     private FrameLayout.LayoutParams mFakeTitleBarParams
 752             = new FrameLayout.LayoutParams(
 753             ViewGroup.LayoutParams.FILL_PARENT,
 754             ViewGroup.LayoutParams.WRAP_CONTENT);
 755     /**
 756      * Keeps track of whether the options menu is open.  This is important in
 757      * determining whether to show or hide the title bar overlay.
 758      */
 759     private boolean mOptionsMenuOpen;
 760
 761     /**
 762      * Only meaningful when mOptionsMenuOpen is true.  This variable keeps track
 763      * of whether the configuration has changed.  The first onMenuOpened call
 764      * after a configuration change is simply a reopening of the same menu
 765      * (i.e. mIconView did not change).
 766      */
 767     private boolean mConfigChanged;
 768
 769     /**
 770      * Whether or not the options menu is in its smaller, icon menu form.  When
 771      * true, we want the title bar overlay to be up.  When false, we do not.
 772      * Only meaningful if mOptionsMenuOpen is true.
 773      */
 774     private boolean mIconView;
 775
 776     @Override
 777     public boolean onMenuOpened(int featureId, Menu menu) {
 778         if (Window.FEATURE_OPTIONS_PANEL == featureId) {
 779             if (mOptionsMenuOpen) {
 780                 if (mConfigChanged) {
 781                     // We do not need to make any changes to the state of the
 782                     // title bar, since the only thing that happened was a
 783                     // change in orientation
 784                     mConfigChanged = false;
 785                 } else {
 786                     if (mIconView) {
 787                         // Switching the menu to expanded view, so hide the
 788                         // title bar.
 789                         hideFakeTitleBar();
 790                         mIconView = false;
 791                     } else {
 792                         // Switching the menu back to icon view, so show the
 793                         // title bar once again.
 794                         showFakeTitleBar();
 795                         mIconView = true;
 796                     }
 797                 }
 798             } else {
 799                 // The options menu is closed, so open it, and show the title
 800                 showFakeTitleBar();
 801                 mOptionsMenuOpen = true;
 802                 mConfigChanged = false;
 803                 mIconView = true;
 804             }
 805         }
 806         return true;
 807     }
 808
 809     /**
 810      * Special class used exclusively for the shadow drawn underneath the fake
 811      * title bar.  The shadow does not need to be drawn if the WebView
 812      * underneath is scrolled to the top, because it will draw directly on top
 813      * of the embedded shadow.
 814      */
 815     private static class Shadow extends View {
 816         private WebView mWebView;
 817
 818         public Shadow(Context context, AttributeSet attrs) {
 819             super(context, attrs);
 820         }
 821
 822         public void setWebView(WebView view) {
 823             mWebView = view;
 824         }
 825
 826         @Override
 827         public void draw(Canvas canvas) {
 828             // In general onDraw is the method to override, but we care about
 829             // whether or not the background gets drawn, which happens in draw()
 830             if (mWebView == null || mWebView.getScrollY() > getHeight()) {
 831                 super.draw(canvas);
 832             }
 833             // Need to invalidate so that if the scroll position changes, we
 834             // still draw as appropriate.
 835             invalidate();
 836         }
 837     }
 838
 839     private void showFakeTitleBar() {
 840         final View decor = getWindow().peekDecorView();
 841         if (mFakeTitleBar.getParent() == null && mActiveTabsPage == null
 842                 && !mActivityInPause && decor != null
 843                 && decor.getWindowToken() != null) {
 844             Rect visRect = new Rect();
 845             if (!mBrowserFrameLayout.getGlobalVisibleRect(visRect)) {
 846                 if (LOGD_ENABLED) {
 847                     Log.d(LOGTAG, "showFakeTitleBar visRect failed");
 848                 }
 849                 return;
 850             }
 851
 852             WindowManager manager
 853                     = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
 854
 855             // Add the title bar to the window manager so it can receive touches
 856             // while the menu is up
 857             WindowManager.LayoutParams params
 858                     = new WindowManager.LayoutParams(
 859                     ViewGroup.LayoutParams.FILL_PARENT,
 860                     ViewGroup.LayoutParams.WRAP_CONTENT,
 861                     WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL,
 862                     WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
 863                     PixelFormat.TRANSLUCENT);
 864             params.gravity = Gravity.TOP;
 865             WebView mainView = mTabControl.getCurrentWebView();
 866             boolean atTop = mainView != null && mainView.getScrollY() == 0;
 867             params.windowAnimations = atTop ? 0 : R.style.TitleBar;
 868             // XXX : Without providing an offset, the fake title bar will be
 869             // placed underneath the status bar.  Use the global visible rect
 870             // of mBrowserFrameLayout to determine the bottom of the status bar
 871             params.y = visRect.top;
 872             // Add a holder for the title bar.  It also holds a shadow to show
 873             // below the title bar.
 874             if (mFakeTitleBarHolder == null) {
 875                 mFakeTitleBarHolder = (ViewGroup) LayoutInflater.from(this)
 876                     .inflate(R.layout.title_bar_bg, null);
 877             }
 878             Shadow shadow = (Shadow) mFakeTitleBarHolder.findViewById(
 879                     R.id.shadow);
 880             shadow.setWebView(mainView);
 881             mFakeTitleBarHolder.addView(mFakeTitleBar, 0, mFakeTitleBarParams);
 882             manager.addView(mFakeTitleBarHolder, params);
 883         }
 884     }
 885
 886     @Override
 887     public void onOptionsMenuClosed(Menu menu) {
 888         mOptionsMenuOpen = false;
 889         if (!mInLoad) {
 890             hideFakeTitleBar();
 891         } else if (!mIconView) {
 892             // The page is currently loading, and we are in expanded mode, so
 893             // we were not showing the menu.  Show it once again.  It will be
 894             // removed when the page finishes.
 895             showFakeTitleBar();
 896         }
 897     }
 898
 899     private void hideFakeTitleBar() {
 900         if (mFakeTitleBar.getParent() == null) return;
 901         WindowManager.LayoutParams params = (WindowManager.LayoutParams)
 902                 mFakeTitleBarHolder.getLayoutParams();
 903         WebView mainView = mTabControl.getCurrentWebView();
 904         // Although we decided whether or not to animate based on the current
 905         // scroll position, the scroll position may have changed since the
 906         // fake title bar was displayed.  Make sure it has the appropriate
 907         // animation/lack thereof before removing.
 908         params.windowAnimations = mainView != null && mainView.getScrollY() == 0
 909                 ? 0 : R.style.TitleBar;
 910         WindowManager manager
 911                     = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
 912         manager.updateViewLayout(mFakeTitleBarHolder, params);
 913         mFakeTitleBarHolder.removeView(mFakeTitleBar);
 914         manager.removeView(mFakeTitleBarHolder);
 915     }
 916
 917     /**
 918      * Special method for the fake title bar to call when displaying its context
 919      * menu, since it is in its own Window, and its parent does not show a
 920      * context menu.
 921      */
 922     /* package */ void showTitleBarContextMenu() {
 923         if (null == mTitleBar.getParent()) {
 924             return;
 925         }
 926         openContextMenu(mTitleBar);
 927     }
 928
 929     @Override
 930     public void onContextMenuClosed(Menu menu) {
 931         super.onContextMenuClosed(menu);
 932         if (mInLoad) {
 933             showFakeTitleBar();
 934         }
 935     }
 936
 937     /**
 938      *  onSaveInstanceState(Bundle map)
 939      *  onSaveInstanceState is called right before onStop(). The map contains
 940      *  the saved state.
 941      */
 942     @Override
 943     protected void onSaveInstanceState(Bundle outState) {
 944         if (LOGV_ENABLED) {
 945             Log.v(LOGTAG, "BrowserActivity.onSaveInstanceState: this=" + this);
 946         }
 947         // the default implementation requires each view to have an id. As the
 948         // browser handles the state itself and it doesn't use id for the views,
 949         // don't call the default implementation. Otherwise it will trigger the
 950         // warning like this, "couldn't save which view has focus because the
 951         // focused view XXX has no id".
 952
 953         // Save all the tabs
 954         mTabControl.saveState(outState);
 955     }
 956
 957     @Override
 958     protected void onPause() {
 959         super.onPause();
 960
 961         if (mActivityInPause) {
 962             Log.e(LOGTAG, "BrowserActivity is already paused.");
 963             return;
 964         }
 965
 966         mTabControl.pauseCurrentTab();
 967         mActivityInPause = true;
 968         if (mTabControl.getCurrentIndex() >= 0 && !pauseWebViewTimers()) {
 969             mWakeLock.acquire();
 970             mHandler.sendMessageDelayed(mHandler
 971                     .obtainMessage(RELEASE_WAKELOCK), WAKELOCK_TIMEOUT);
 972         }
 973
 974         // Clear the credentials toast if it is up
 975         if (mCredsDlg != null && mCredsDlg.isShowing()) {
 976             mCredsDlg.dismiss();
 977         }
 978         mCredsDlg = null;
 979
 980         // FIXME: This removes the active tabs page and resets the menu to
 981         // MAIN_MENU.  A better solution might be to do this work in onNewIntent
 982         // but then we would need to save it in onSaveInstanceState and restore
 983         // it in onCreate/onRestoreInstanceState
 984         if (mActiveTabsPage != null) {
 985             removeActiveTabPage(true);
 986         }
 987
 988         cancelStopToast();
 989
 990         // unregister network state listener
 991         unregisterReceiver(mNetworkStateIntentReceiver);
 992         WebView.disablePlatformNotifications();
 993     }
 994
 995     @Override
 996     protected void onDestroy() {
 997         if (LOGV_ENABLED) {
 998             Log.v(LOGTAG, "BrowserActivity.onDestroy: this=" + this);
 999         }
1000         super.onDestroy();
1001
1002         if (mUploadMessage != null) {
1003             mUploadMessage.onReceiveValue(null);
1004             mUploadMessage = null;
1005         }
1006
1007         if (mTabControl == null) return;
1008
1009         // Remove the fake title bar if it is there
1010         hideFakeTitleBar();
1011
1012         // Remove the current tab and sub window
1013         Tab t = mTabControl.getCurrentTab();
1014         if (t != null) {
1015             dismissSubWindow(t);
1016             removeTabFromContentView(t);
1017         }
1018         // Destroy all the tabs
1019         mTabControl.destroy();
1020         WebIconDatabase.getInstance().close();
1021         if (mGlsConnection != null) {
1022             unbindService(mGlsConnection);
1023             mGlsConnection = null;
1024         }
1025
1026         unregisterReceiver(mPackageInstallationReceiver);
1027     }
1028
1029     @Override
1030     public void onConfigurationChanged(Configuration newConfig) {
1031         mConfigChanged = true;
1032         super.onConfigurationChanged(newConfig);
1033
1034         if (mPageInfoDialog != null) {
1035             mPageInfoDialog.dismiss();
1036             showPageInfo(
1037                 mPageInfoView,
1038                 mPageInfoFromShowSSLCertificateOnError.booleanValue());
1039         }
1040         if (mSSLCertificateDialog != null) {
1041             mSSLCertificateDialog.dismiss();
1042             showSSLCertificate(
1043                 mSSLCertificateView);
1044         }
1045         if (mSSLCertificateOnErrorDialog != null) {
1046             mSSLCertificateOnErrorDialog.dismiss();
1047             showSSLCertificateOnError(
1048                 mSSLCertificateOnErrorView,
1049                 mSSLCertificateOnErrorHandler,
1050                 mSSLCertificateOnErrorError);
1051         }
1052         if (mHttpAuthenticationDialog != null) {
1053             String title = ((TextView) mHttpAuthenticationDialog
1054                     .findViewById(com.android.internal.R.id.alertTitle)).getText()
1055                     .toString();
1056             String name = ((TextView) mHttpAuthenticationDialog
1057                     .findViewById(R.id.username_edit)).getText().toString();
1058             String password = ((TextView) mHttpAuthenticationDialog
1059                     .findViewById(R.id.password_edit)).getText().toString();
1060             int focusId = mHttpAuthenticationDialog.getCurrentFocus()
1061                     .getId();
1062             mHttpAuthenticationDialog.dismiss();
1063             showHttpAuthentication(mHttpAuthHandler, null, null, title,
1064                     name, password, focusId);
1065         }
1066     }
1067
1068     @Override
1069     public void onLowMemory() {
1070         super.onLowMemory();
1071         mTabControl.freeMemory();
1072     }
1073
1074     private boolean resumeWebViewTimers() {
1075         Tab tab = mTabControl.getCurrentTab();
1076         boolean inLoad = tab.inLoad();
1077         if ((!mActivityInPause && !inLoad) || (mActivityInPause && inLoad)) {
1078             CookieSyncManager.getInstance().startSync();
1079             WebView w = tab.getWebView();
1080             if (w != null) {
1081                 w.resumeTimers();
1082             }
1083             return true;
1084         } else {
1085             return false;
1086         }
1087     }
1088
1089     private boolean pauseWebViewTimers() {
1090         Tab tab = mTabControl.getCurrentTab();
1091         boolean inLoad = tab.inLoad();
1092         if (mActivityInPause && !inLoad) {
1093             CookieSyncManager.getInstance().stopSync();
1094             WebView w = mTabControl.getCurrentWebView();
1095             if (w != null) {
1096                 w.pauseTimers();
1097             }
1098             return true;
1099         } else {
1100             return false;
1101         }
1102     }
1103
1104     // FIXME: Do we want to call this when loading google for the first time?
1105     /*
1106      * This function is called when we are launching for the first time. We
1107      * are waiting for the login credentials before loading Google home
1108      * pages. This way the user will be logged in straight away.
1109      */
1110     private void waitForCredentials() {
1111         // Show a toast
1112         mCredsDlg = new ProgressDialog(this);
1113         mCredsDlg.setIndeterminate(true);
1114         mCredsDlg.setMessage(getText(R.string.retrieving_creds_dlg_msg));
1115         // If the user cancels the operation, then cancel the Google
1116         // Credentials request.
1117         mCredsDlg.setCancelMessage(mHandler.obtainMessage(CANCEL_CREDS_REQUEST));
1118         mCredsDlg.show();
1119
1120         // We set a timeout for the retrieval of credentials in onResume()
1121         // as that is when we have freed up some CPU time to get
1122         // the login credentials.
1123     }
1124
1125     /*
1126      * If we have received the credentials or we have timed out and we are
1127      * showing the credentials dialog, then it is time to move on.
1128      */
1129     private void resumeAfterCredentials() {
1130         if (mCredsDlg == null) {
1131             return;
1132         }
1133
1134         // Clear the toast
1135         if (mCredsDlg.isShowing()) {
1136             mCredsDlg.dismiss();
1137         }
1138         mCredsDlg = null;
1139
1140         // Clear any pending timeout
1141         mHandler.removeMessages(CANCEL_CREDS_REQUEST);
1142
1143         // Load the page
1144         WebView w = mTabControl.getCurrentWebView();
1145         if (w != null) {
1146             w.loadUrl(mSettings.getHomePage());
1147         }
1148
1149         // Update the settings, need to do this last as it can take a moment
1150         // to persist the settings. In the mean time we could be loading
1151         // content.
1152         mSettings.setLoginInitialized(this);
1153     }
1154
1155     // Open the icon database and retain all the icons for visited sites.
1156     private void retainIconsOnStartup() {
1157         final WebIconDatabase db = WebIconDatabase.getInstance();
1158         db.open(getDir("icons", 0).getPath());
1159         try {
1160             Cursor c = Browser.getAllBookmarks(mResolver);
1161             if (!c.moveToFirst()) {
1162                 c.deactivate();
1163                 return;
1164             }
1165             int urlIndex = c.getColumnIndex(Browser.BookmarkColumns.URL);
1166             do {
1167                 String url = c.getString(urlIndex);
1168                 db.retainIconForPageUrl(url);
1169             } while (c.moveToNext());
1170             c.deactivate();
1171         } catch (IllegalStateException e) {
1172             Log.e(LOGTAG, "retainIconsOnStartup", e);
1173         }
1174     }
1175
1176     // Helper method for getting the top window.
1177     WebView getTopWindow() {
1178         return mTabControl.getCurrentTopWebView();
1179     }
1180
1181     TabControl getTabControl() {
1182         return mTabControl;
1183     }
1184
1185     @Override
1186     public boolean onCreateOptionsMenu(Menu menu) {
1187         super.onCreateOptionsMenu(menu);
1188
1189         MenuInflater inflater = getMenuInflater();
1190         inflater.inflate(R.menu.browser, menu);
1191         mMenu = menu;
1192         updateInLoadMenuItems();
1193         return true;
1194     }
1195
1196     /**
1197      * As the menu can be open when loading state changes
1198      * we must manually update the state of the stop/reload menu
1199      * item
1200      */
1201     private void updateInLoadMenuItems() {
1202         if (mMenu == null) {
1203             return;
1204         }
1205         MenuItem src = mInLoad ?
1206                 mMenu.findItem(R.id.stop_menu_id):
1207                     mMenu.findItem(R.id.reload_menu_id);
1208         MenuItem dest = mMenu.findItem(R.id.stop_reload_menu_id);
1209         dest.setIcon(src.getIcon());
1210         dest.setTitle(src.getTitle());
1211     }
1212
1213     @Override
1214     public boolean onContextItemSelected(MenuItem item) {
1215         // chording is not an issue with context menus, but we use the same
1216         // options selector, so set mCanChord to true so we can access them.
1217         mCanChord = true;
1218         int id = item.getItemId();
1219         switch (id) {
1220             // For the context menu from the title bar
1221             case R.id.title_bar_share_page_url:
1222             case R.id.title_bar_copy_page_url:
1223                 WebView mainView = mTabControl.getCurrentWebView();
1224                 if (null == mainView) {
1225                     return false;
1226                 }
1227                 if (id == R.id.title_bar_share_page_url) {
1228                     Browser.sendString(this, mainView.getUrl());
1229                 } else {
1230                     copy(mainView.getUrl());
1231                 }
1232                 break;
1233             // -- Browser context menu
1234             case R.id.open_context_menu_id:
1235             case R.id.open_newtab_context_menu_id:
1236             case R.id.bookmark_context_menu_id:
1237             case R.id.save_link_context_menu_id:
1238             case R.id.share_link_context_menu_id:
1239             case R.id.copy_link_context_menu_id:
1240                 final WebView webView = getTopWindow();
1241                 if (null == webView) {
1242                     return false;
1243                 }
1244                 final HashMap hrefMap = new HashMap();
1245                 hrefMap.put("webview", webView);
1246                 final Message msg = mHandler.obtainMessage(
1247                         FOCUS_NODE_HREF, id, 0, hrefMap);
1248                 webView.requestFocusNodeHref(msg);
1249                 break;
1250
1251             default:
1252                 // For other context menus
1253                 return onOptionsItemSelected(item);
1254         }
1255         mCanChord = false;
1256         return true;
1257     }
1258
1259     private Bundle createGoogleSearchSourceBundle(String source) {
1260         Bundle bundle = new Bundle();
1261         bundle.putString(SearchManager.SOURCE, source);
1262         return bundle;
1263     }
1264
1265     /**
1266      * Overriding this to insert a local information bundle
1267      */
1268     @Override
1269     public boolean onSearchRequested() {
1270         if (mOptionsMenuOpen) closeOptionsMenu();
1271         String url = (getTopWindow() == null) ? null : getTopWindow().getUrl();
1272         startSearch(mSettings.getHomePage().equals(url) ? null : url, true,
1273                 createGoogleSearchSourceBundle(GOOGLE_SEARCH_SOURCE_SEARCHKEY), false);
1274         return true;
1275     }
1276
1277     @Override
1278     public void startSearch(String initialQuery, boolean selectInitialQuery,
1279             Bundle appSearchData, boolean globalSearch) {
1280         if (appSearchData == null) {
1281             appSearchData = createGoogleSearchSourceBundle(GOOGLE_SEARCH_SOURCE_TYPE);
1282         }
1283         super.startSearch(initialQuery, selectInitialQuery, appSearchData, globalSearch);
1284     }
1285
1286     /**
1287      * Switch tabs.  Called by the TitleBarSet when sliding the title bar
1288      * results in changing tabs.
1289      * @param index Index of the tab to change to, as defined by
1290      *              mTabControl.getTabIndex(Tab t).
1291      * @return boolean True if we successfully switched to a different tab.  If
1292      *                 the indexth tab is null, or if that tab is the same as
1293      *                 the current one, return false.
1294      */
1295     /* package */ boolean switchToTab(int index) {
1296         Tab tab = mTabControl.getTab(index);
1297         Tab currentTab = mTabControl.getCurrentTab();
1298         if (tab == null || tab == currentTab) {
1299             return false;
1300         }
1301         if (currentTab != null) {
1302             // currentTab may be null if it was just removed.  In that case,
1303             // we do not need to remove it
1304             removeTabFromContentView(currentTab);
1305         }
1306         mTabControl.setCurrentTab(tab);
1307         attachTabToContentView(tab);
1308         resetTitleIconAndProgress();
1309         updateLockIconToLatest();
1310         return true;
1311     }
1312
1313     /* package */ Tab openTabToHomePage() {
1314         return openTabAndShow(mSettings.getHomePage(), false, null);
1315     }
1316
1317     /* package */ void closeCurrentWindow() {
1318         final Tab current = mTabControl.getCurrentTab();
1319         if (mTabControl.getTabCount() == 1) {
1320             // This is the last tab.  Open a new one, with the home
1321             // page and close the current one.
1322             openTabToHomePage();
1323             closeTab(current);
1324             return;
1325         }
1326         final Tab parent = current.getParentTab();
1327         int indexToShow = -1;
1328         if (parent != null) {
1329             indexToShow = mTabControl.getTabIndex(parent);
1330         } else {
1331             final int currentIndex = mTabControl.getCurrentIndex();
1332             // Try to move to the tab to the right
1333             indexToShow = currentIndex + 1;
1334             if (indexToShow > mTabControl.getTabCount() - 1) {
1335                 // Try to move to the tab to the left
1336                 indexToShow = currentIndex - 1;
1337             }
1338         }
1339         if (switchToTab(indexToShow)) {
1340             // Close window
1341             closeTab(current);
1342         }
1343     }
1344
1345     private ActiveTabsPage mActiveTabsPage;
1346
1347     /**
1348      * Remove the active tabs page.
1349      * @param needToAttach If true, the active tabs page did not attach a tab
1350      *                     to the content view, so we need to do that here.
1351      */
1352     /* package */ void removeActiveTabPage(boolean needToAttach) {
1353         mContentView.removeView(mActiveTabsPage);
1354         mActiveTabsPage = null;
1355         mMenuState = R.id.MAIN_MENU;
1356         if (needToAttach) {
1357             attachTabToContentView(mTabControl.getCurrentTab());
1358         }
1359         getTopWindow().requestFocus();
1360     }
1361
1362     @Override
1363     public boolean onOptionsItemSelected(MenuItem item) {
1364         if (!mCanChord) {
1365             // The user has already fired a shortcut with this hold down of the
1366             // menu key.
1367             return false;
1368         }
1369         if (null == getTopWindow()) {
1370             return false;
1371         }
1372         if (mMenuIsDown) {
1373             // The shortcut action consumes the MENU. Even if it is still down,
1374             // it won't trigger the next shortcut action. In the case of the
1375             // shortcut action triggering a new activity, like Bookmarks, we
1376             // won't get onKeyUp for MENU. So it is important to reset it here.
1377             mMenuIsDown = false;
1378         }
1379         switch (item.getItemId()) {
1380             // -- Main menu
1381             case R.id.new_tab_menu_id:
1382                 openTabToHomePage();
1383                 break;
1384
1385             case R.id.goto_menu_id:
1386                 onSearchRequested();
1387                 break;
1388
1389             case R.id.bookmarks_menu_id:
1390                 bookmarksOrHistoryPicker(false);
1391                 break;
1392
1393             case R.id.active_tabs_menu_id:
1394                 mActiveTabsPage = new ActiveTabsPage(this, mTabControl);
1395                 removeTabFromContentView(mTabControl.getCurrentTab());
1396                 hideFakeTitleBar();
1397                 mContentView.addView(mActiveTabsPage, COVER_SCREEN_PARAMS);
1398                 mActiveTabsPage.requestFocus();
1399                 mMenuState = EMPTY_MENU;
1400                 break;
1401
1402             case R.id.add_bookmark_menu_id:
1403                 Intent i = new Intent(BrowserActivity.this,
1404                         AddBookmarkPage.class);
1405                 WebView w = getTopWindow();
1406                 i.putExtra("url", w.getUrl());
1407                 i.putExtra("title", w.getTitle());
1408                 i.putExtra("touch_icon_url", w.getTouchIconUrl());
1409                 i.putExtra("thumbnail", createScreenshot(w));
1410                 startActivity(i);
1411                 break;
1412
1413             case R.id.stop_reload_menu_id:
1414                 if (mInLoad) {
1415                     stopLoading();
1416                 } else {
1417                     getTopWindow().reload();
1418                 }
1419                 break;
1420
1421             case R.id.back_menu_id:
1422                 getTopWindow().goBack();
1423                 break;
1424
1425             case R.id.forward_menu_id:
1426                 getTopWindow().goForward();
1427                 break;
1428
1429             case R.id.close_menu_id:
1430                 // Close the subwindow if it exists.
1431                 if (mTabControl.getCurrentSubWindow() != null) {
1432                     dismissSubWindow(mTabControl.getCurrentTab());
1433                     break;
1434                 }
1435                 closeCurrentWindow();
1436                 break;
1437
1438             case R.id.homepage_menu_id:
1439                 Tab current = mTabControl.getCurrentTab();
1440                 if (current != null) {
1441                     dismissSubWindow(current);
1442                     current.getWebView().loadUrl(mSettings.getHomePage());
1443                 }
1444                 break;
1445
1446             case R.id.preferences_menu_id:
1447                 Intent intent = new Intent(this,
1448                         BrowserPreferencesPage.class);
1449                 intent.putExtra(BrowserPreferencesPage.CURRENT_PAGE,
1450                         getTopWindow().getUrl());
1451                 startActivityForResult(intent, PREFERENCES_PAGE);
1452                 break;
1453
1454             case R.id.find_menu_id:
1455                 if (null == mFindDialog) {
1456                     mFindDialog = new FindDialog(this);
1457                 }
1458                 mFindDialog.setWebView(getTopWindow());
1459                 mFindDialog.show();
1460                 mMenuState = EMPTY_MENU;
1461                 break;
1462
1463             case R.id.select_text_id:
1464                 getTopWindow().emulateShiftHeld();
1465                 break;
1466             case R.id.page_info_menu_id:
1467                 showPageInfo(mTabControl.getCurrentTab(), false);
1468                 break;
1469
1470             case R.id.classic_history_menu_id:
1471                 bookmarksOrHistoryPicker(true);
1472                 break;
1473
1474             case R.id.share_page_menu_id:
1475                 Browser.sendString(this, getTopWindow().getUrl(),
1476                         getText(R.string.choosertitle_sharevia).toString());
1477                 break;
1478
1479             case R.id.dump_nav_menu_id:
1480                 getTopWindow().debugDump();
1481                 break;
1482
1483             case R.id.zoom_in_menu_id:
1484                 getTopWindow().zoomIn();
1485                 break;
1486
1487             case R.id.zoom_out_menu_id:
1488                 getTopWindow().zoomOut();
1489                 break;
1490
1491             case R.id.view_downloads_menu_id:
1492                 viewDownloads(null);
1493                 break;
1494
1495             case R.id.window_one_menu_id:
1496             case R.id.window_two_menu_id:
1497             case R.id.window_three_menu_id:
1498             case R.id.window_four_menu_id:
1499             case R.id.window_five_menu_id:
1500             case R.id.window_six_menu_id:
1501             case R.id.window_seven_menu_id:
1502             case R.id.window_eight_menu_id:
1503                 {
1504                     int menuid = item.getItemId();
1505                     for (int id = 0; id < WINDOW_SHORTCUT_ID_ARRAY.length; id++) {
1506                         if (WINDOW_SHORTCUT_ID_ARRAY[id] == menuid) {
1507                             Tab desiredTab = mTabControl.getTab(id);
1508                             if (desiredTab != null &&
1509                                     desiredTab != mTabControl.getCurrentTab()) {
1510                                 switchToTab(id);
1511                             }
1512                             break;
1513                         }
1514                     }
1515                 }
1516                 break;
1517
1518             default:
1519                 if (!super.onOptionsItemSelected(item)) {
1520                     return false;
1521                 }
1522                 // Otherwise fall through.
1523         }
1524         mCanChord = false;
1525         return true;
1526     }
1527
1528     public void closeFind() {
1529         mMenuState = R.id.MAIN_MENU;
1530     }
1531
1532     @Override
1533     public boolean onPrepareOptionsMenu(Menu menu) {
1534         // This happens when the user begins to hold down the menu key, so
1535         // allow them to chord to get a shortcut.
1536         mCanChord = true;
1537         // Note: setVisible will decide whether an item is visible; while
1538         // setEnabled() will decide whether an item is enabled, which also means
1539         // whether the matching shortcut key will function.
1540         super.onPrepareOptionsMenu(menu);
1541         switch (mMenuState) {
1542             case EMPTY_MENU:
1543                 if (mCurrentMenuState != mMenuState) {
1544                     menu.setGroupVisible(R.id.MAIN_MENU, false);
1545                     menu.setGroupEnabled(R.id.MAIN_MENU, false);
1546                     menu.setGroupEnabled(R.id.MAIN_SHORTCUT_MENU, false);
1547                 }
1548                 break;
1549             default:
1550                 if (mCurrentMenuState != mMenuState) {
1551                     menu.setGroupVisible(R.id.MAIN_MENU, true);
1552                     menu.setGroupEnabled(R.id.MAIN_MENU, true);
1553                     menu.setGroupEnabled(R.id.MAIN_SHORTCUT_MENU, true);
1554                 }
1555                 final WebView w = getTopWindow();
1556                 boolean canGoBack = false;
1557                 boolean canGoForward = false;
1558                 boolean isHome = false;
1559                 if (w != null) {
1560                     canGoBack = w.canGoBack();
1561                     canGoForward = w.canGoForward();
1562                     isHome = mSettings.getHomePage().equals(w.getUrl());
1563                 }
1564                 final MenuItem back = menu.findItem(R.id.back_menu_id);
1565                 back.setEnabled(canGoBack);
1566
1567                 final MenuItem home = menu.findItem(R.id.homepage_menu_id);
1568                 home.setEnabled(!isHome);
1569
1570                 menu.findItem(R.id.forward_menu_id)
1571                         .setEnabled(canGoForward);
1572
1573                 menu.findItem(R.id.new_tab_menu_id).setEnabled(
1574                         mTabControl.canCreateNewTab());
1575
1576                 // decide whether to show the share link option
1577                 PackageManager pm = getPackageManager();
1578                 Intent send = new Intent(Intent.ACTION_SEND);
1579                 send.setType("text/plain");
1580                 ResolveInfo ri = pm.resolveActivity(send, PackageManager.MATCH_DEFAULT_ONLY);
1581                 menu.findItem(R.id.share_page_menu_id).setVisible(ri != null);
1582
1583                 boolean isNavDump = mSettings.isNavDump();
1584                 final MenuItem nav = menu.findItem(R.id.dump_nav_menu_id);
1585                 nav.setVisible(isNavDump);
1586                 nav.setEnabled(isNavDump);
1587                 break;
1588         }
1589         mCurrentMenuState = mMenuState;
1590         return true;
1591     }
1592
1593     @Override
1594     public void onCreateContextMenu(ContextMenu menu, View v,
1595             ContextMenuInfo menuInfo) {
1596         WebView webview = (WebView) v;
1597         WebView.HitTestResult result = webview.getHitTestResult();
1598         if (result == null) {
1599             return;
1600         }
1601
1602         int type = result.getType();
1603         if (type == WebView.HitTestResult.UNKNOWN_TYPE) {
1604             Log.w(LOGTAG,
1605                     "We should not show context menu when nothing is touched");
1606             return;
1607         }
1608         if (type == WebView.HitTestResult.EDIT_TEXT_TYPE) {
1609             // let TextView handles context menu
1610             return;
1611         }
1612
1613         // Note, http://b/issue?id=1106666 is requesting that
1614         // an inflated menu can be used again. This is not available
1615         // yet, so inflate each time (yuk!)
1616         MenuInflater inflater = getMenuInflater();
1617         inflater.inflate(R.menu.browsercontext, menu);
1618
1619         // Show the correct menu group
1620         String extra = result.getExtra();
1621         menu.setGroupVisible(R.id.PHONE_MENU,
1622                 type == WebView.HitTestResult.PHONE_TYPE);
1623         menu.setGroupVisible(R.id.EMAIL_MENU,
1624                 type == WebView.HitTestResult.EMAIL_TYPE);
1625         menu.setGroupVisible(R.id.GEO_MENU,
1626                 type == WebView.HitTestResult.GEO_TYPE);
1627         menu.setGroupVisible(R.id.IMAGE_MENU,
1628                 type == WebView.HitTestResult.IMAGE_TYPE
1629                 || type == WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE);
1630         menu.setGroupVisible(R.id.ANCHOR_MENU,
1631                 type == WebView.HitTestResult.SRC_ANCHOR_TYPE
1632                 || type == WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE);
1633
1634         // Setup custom handling depending on the type
1635         switch (type) {
1636             case WebView.HitTestResult.PHONE_TYPE:
1637                 menu.setHeaderTitle(Uri.decode(extra));
1638                 menu.findItem(R.id.dial_context_menu_id).setIntent(
1639                         new Intent(Intent.ACTION_VIEW, Uri
1640                                 .parse(WebView.SCHEME_TEL + extra)));
1641                 Intent addIntent = new Intent(Intent.ACTION_INSERT_OR_EDIT);
1642                 addIntent.putExtra(Insert.PHONE, Uri.decode(extra));
1643                 addIntent.setType(ContactsContract.Contacts.CONTENT_ITEM_TYPE);
1644                 menu.findItem(R.id.add_contact_context_menu_id).setIntent(
1645                         addIntent);
1646                 menu.findItem(R.id.copy_phone_context_menu_id).setOnMenuItemClickListener(
1647                         new Copy(extra));
1648                 break;
1649
1650             case WebView.HitTestResult.EMAIL_TYPE:
1651                 menu.setHeaderTitle(extra);
1652                 menu.findItem(R.id.email_context_menu_id).setIntent(
1653                         new Intent(Intent.ACTION_VIEW, Uri
1654                                 .parse(WebView.SCHEME_MAILTO + extra)));
1655                 menu.findItem(R.id.copy_mail_context_menu_id).setOnMenuItemClickListener(
1656                         new Copy(extra));
1657                 break;
1658
1659             case WebView.HitTestResult.GEO_TYPE:
1660                 menu.setHeaderTitle(extra);
1661                 menu.findItem(R.id.map_context_menu_id).setIntent(
1662                         new Intent(Intent.ACTION_VIEW, Uri
1663                                 .parse(WebView.SCHEME_GEO
1664                                         + URLEncoder.encode(extra))));
1665                 menu.findItem(R.id.copy_geo_context_menu_id).setOnMenuItemClickListener(
1666                         new Copy(extra));
1667                 break;
1668
1669             case WebView.HitTestResult.SRC_ANCHOR_TYPE:
1670             case WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE:
1671                 TextView titleView = (TextView) LayoutInflater.from(this)
1672                         .inflate(android.R.layout.browser_link_context_header,
1673                         null);
1674                 titleView.setText(extra);
1675                 menu.setHeaderView(titleView);
1676                 // decide whether to show the open link in new tab option
1677                 menu.findItem(R.id.open_newtab_context_menu_id).setVisible(
1678                         mTabControl.canCreateNewTab());
1679                 menu.findItem(R.id.bookmark_context_menu_id).setVisible(
1680                         Bookmarks.urlHasAcceptableScheme(extra));
1681                 PackageManager pm = getPackageManager();
1682                 Intent send = new Intent(Intent.ACTION_SEND);
1683                 send.setType("text/plain");
1684                 ResolveInfo ri = pm.resolveActivity(send, PackageManager.MATCH_DEFAULT_ONLY);
1685                 menu.findItem(R.id.share_link_context_menu_id).setVisible(ri != null);
1686                 if (type == WebView.HitTestResult.SRC_ANCHOR_TYPE) {
1687                     break;
1688                 }
1689                 // otherwise fall through to handle image part
1690             case WebView.HitTestResult.IMAGE_TYPE:
1691                 if (type == WebView.HitTestResult.IMAGE_TYPE) {
1692                     menu.setHeaderTitle(extra);
1693                 }
1694                 menu.findItem(R.id.view_image_context_menu_id).setIntent(
1695                         new Intent(Intent.ACTION_VIEW, Uri.parse(extra)));
1696                 menu.findItem(R.id.download_context_menu_id).
1697                         setOnMenuItemClickListener(new Download(extra));
1698                 menu.findItem(R.id.set_wallpaper_context_menu_id).
1699                         setOnMenuItemClickListener(new SetAsWallpaper(extra));
1700                 break;
1701
1702             default:
1703                 Log.w(LOGTAG, "We should not get here.");
1704                 break;
1705         }
1706         hideFakeTitleBar();
1707     }
1708
1709     // Attach the given tab to the content view.
1710     // this should only be called for the current tab.
1711     private void attachTabToContentView(Tab t) {
1712         // Attach the container that contains the main WebView and any other UI
1713         // associated with the tab.
1714         t.attachTabToContentView(mContentView);
1715
1716         if (mShouldShowErrorConsole) {
1717             ErrorConsoleView errorConsole = t.getErrorConsole(true);
1718             if (errorConsole.numberOfErrors() == 0) {
1719                 errorConsole.showConsole(ErrorConsoleView.SHOW_NONE);
1720             } else {
1721                 errorConsole.showConsole(ErrorConsoleView.SHOW_MINIMIZED);
1722             }
1723
1724             mErrorConsoleContainer.addView(errorConsole,
1725                     new LinearLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT,
1726                                                   ViewGroup.LayoutParams.WRAP_CONTENT));
1727         }
1728
1729         WebView view = t.getWebView();
1730         view.setEmbeddedTitleBar(mTitleBar);
1731         // Request focus on the top window.
1732         t.getTopWindow().requestFocus();
1733     }
1734
1735     // Attach a sub window to the main WebView of the given tab.
1736     void attachSubWindow(Tab t) {
1737         t.attachSubWindow(mContentView);
1738         getTopWindow().requestFocus();
1739     }
1740
1741     // Remove the given tab from the content view.
1742     private void removeTabFromContentView(Tab t) {
1743         // Remove the container that contains the main WebView.
1744         t.removeTabFromContentView(mContentView);
1745
1746         ErrorConsoleView errorConsole = t.getErrorConsole(false);
1747         if (errorConsole != null) {
1748             mErrorConsoleContainer.removeView(errorConsole);
1749         }
1750
1751         WebView view = t.getWebView();
1752         if (view != null) {
1753             view.setEmbeddedTitleBar(null);
1754         }
1755     }
1756
1757     // Remove the sub window if it exists. Also called by TabControl when the
1758     // user clicks the 'X' to dismiss a sub window.
1759     /* package */ void dismissSubWindow(Tab t) {
1760         t.removeSubWindow(mContentView);
1761         // dismiss the subwindow. This will destroy the WebView.
1762         t.dismissSubWindow();
1763         getTopWindow().requestFocus();
1764     }
1765
1766     // A wrapper function of {@link #openTabAndShow(UrlData, boolean, String)}
1767     // that accepts url as string.
1768     private Tab openTabAndShow(String url, boolean closeOnExit, String appId) {
1769         return openTabAndShow(new UrlData(url), closeOnExit, appId);
1770     }
1771
1772     // This method does a ton of stuff. It will attempt to create a new tab
1773     // if we haven't reached MAX_TABS. Otherwise it uses the current tab. If
1774     // url isn't null, it will load the given url.
1775     /* package */Tab openTabAndShow(UrlData urlData, boolean closeOnExit,
1776             String appId) {
1777         final Tab currentTab = mTabControl.getCurrentTab();
1778         if (mTabControl.canCreateNewTab()) {
1779             final Tab tab = mTabControl.createNewTab(closeOnExit, appId,
1780                     urlData.mUrl);
1781             WebView webview = tab.getWebView();
1782             // If the last tab was removed from the active tabs page, currentTab
1783             // will be null.
1784             if (currentTab != null) {
1785                 removeTabFromContentView(currentTab);
1786             }
1787             // We must set the new tab as the current tab to reflect the old
1788             // animation behavior.
1789             mTabControl.setCurrentTab(tab);
1790             attachTabToContentView(tab);
1791             if (!urlData.isEmpty()) {
1792                 urlData.loadIn(webview);
1793             }
1794             return tab;
1795         } else {
1796             // Get rid of the subwindow if it exists
1797             dismissSubWindow(currentTab);
1798             if (!urlData.isEmpty()) {
1799                 // Load the given url.
1800                 urlData.loadIn(currentTab.getWebView());
1801             }
1802         }
1803         return currentTab;
1804     }
1805
1806     private Tab openTab(String url) {
1807         if (mSettings.openInBackground()) {
1808             Tab t = mTabControl.createNewTab();
1809             if (t != null) {
1810                 WebView view = t.getWebView();
1811                 view.loadUrl(url);
1812             }
1813             return t;
1814         } else {
1815             return openTabAndShow(url, false, null);
1816         }
1817     }
1818
1819     private class Copy implements OnMenuItemClickListener {
1820         private CharSequence mText;
1821
1822         public boolean onMenuItemClick(MenuItem item) {
1823             copy(mText);
1824             return true;
1825         }
1826
1827         public Copy(CharSequence toCopy) {
1828             mText = toCopy;
1829         }
1830     }
1831
1832     private class Download implements OnMenuItemClickListener {
1833         private String mText;
1834
1835         public boolean onMenuItemClick(MenuItem item) {
1836             onDownloadStartNoStream(mText, null, null, null, -1);
1837             return true;
1838         }
1839
1840         public Download(String toDownload) {
1841             mText = toDownload;
1842         }
1843     }
1844
1845     private class SetAsWallpaper extends Thread implements
1846             OnMenuItemClickListener, DialogInterface.OnCancelListener {
1847         private URL mUrl;
1848         private ProgressDialog mWallpaperProgress;
1849         private boolean mCanceled = false;
1850
1851         public SetAsWallpaper(String url) {
1852             try {
1853                 mUrl = new URL(url);
1854             } catch (MalformedURLException e) {
1855                 mUrl = null;
1856             }
1857         }
1858
1859         public void onCancel(DialogInterface dialog) {
1860             mCanceled = true;
1861         }
1862
1863         public boolean onMenuItemClick(MenuItem item) {
1864             if (mUrl != null) {
1865                 // The user may have tried to set a image with a large file size as their
1866                 // background so it may take a few moments to perform the operation. Display
1867                 // a progress spinner while it is working.
1868                 mWallpaperProgress = new ProgressDialog(BrowserActivity.this);
1869                 mWallpaperProgress.setIndeterminate(true);
1870                 mWallpaperProgress.setMessage(getText(R.string.progress_dialog_setting_wallpaper));
1871                 mWallpaperProgress.setCancelable(true);
1872                 mWallpaperProgress.setOnCancelListener(this);
1873                 mWallpaperProgress.show();
1874                 start();
1875             }
1876             return true;
1877         }
1878
1879         public void run() {
1880             Drawable oldWallpaper = BrowserActivity.this.getWallpaper();
1881             try {
1882                 // TODO: This will cause the resource to be downloaded again, when we
1883                 // should in most cases be able to grab it from the cache. To fix this
1884                 // we should query WebCore to see if we can access a cached version and
1885                 // instead open an input stream on that. This pattern could also be used
1886                 // in the download manager where the same problem exists.
1887                 InputStream inputstream = mUrl.openStream();
1888                 if (inputstream != null) {
1889                     setWallpaper(inputstream);
1890                 }
1891             } catch (IOException e) {
1892                 Log.e(LOGTAG, "Unable to set new wallpaper");
1893                 // Act as though the user canceled the operation so we try to
1894                 // restore the old wallpaper.
1895                 mCanceled = true;
1896             }
1897
1898             if (mCanceled) {
1899                 // Restore the old wallpaper if the user cancelled whilst we were setting
1900                 // the new wallpaper.
1901                 int width = oldWallpaper.getIntrinsicWidth();
1902                 int height = oldWallpaper.getIntrinsicHeight();
1903                 Bitmap bm = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565);
1904                 Canvas canvas = new Canvas(bm);
1905                 oldWallpaper.setBounds(0, 0, width, height);
1906                 oldWallpaper.draw(canvas);
1907                 try {
1908                     setWallpaper(bm);
1909                 } catch (IOException e) {
1910                     Log.e(LOGTAG, "Unable to restore old wallpaper.");
1911                 }
1912                 mCanceled = false;
1913             }
1914
1915             if (mWallpaperProgress.isShowing()) {
1916                 mWallpaperProgress.dismiss();
1917             }
1918         }
1919     }
1920
1921     private void copy(CharSequence text) {
1922         try {
1923             IClipboard clip = IClipboard.Stub.asInterface(ServiceManager.getService("clipboard"));
1924             if (clip != null) {
1925                 clip.setClipboardText(text);
1926             }
1927         } catch (android.os.RemoteException e) {
1928             Log.e(LOGTAG, "Copy failed", e);
1929         }
1930     }
1931
1932     /**
1933      * Resets the browser title-view to whatever it must be
1934      * (for example, if we had a loading error)
1935      * When we have a new page, we call resetTitle, when we
1936      * have to reset the titlebar to whatever it used to be
1937      * (for example, if the user chose to stop loading), we
1938      * call resetTitleAndRevertLockIcon.
1939      */
1940     /* package */ void resetTitleAndRevertLockIcon() {
1941         mTabControl.getCurrentTab().revertLockIcon();
1942         updateLockIconToLatest();
1943         resetTitleIconAndProgress();
1944     }
1945
1946     /**
1947      * Reset the title, favicon, and progress.
1948      */
1949     private void resetTitleIconAndProgress() {
1950         WebView current = mTabControl.getCurrentWebView();
1951         if (current == null) {
1952             return;
1953         }
1954         resetTitleAndIcon(current);
1955         int progress = current.getProgress();
1956         current.getWebChromeClient().onProgressChanged(current, progress);
1957     }
1958
1959     // Reset the title and the icon based on the given item.
1960     private void resetTitleAndIcon(WebView view) {
1961         WebHistoryItem item = view.copyBackForwardList().getCurrentItem();
1962         if (item != null) {
1963             setUrlTitle(item.getUrl(), item.getTitle());
1964             setFavicon(item.getFavicon());
1965         } else {
1966             setUrlTitle(null, null);
1967             setFavicon(null);
1968         }
1969     }
1970
1971     /**
1972      * Sets a title composed of the URL and the title string.
1973      * @param url The URL of the site being loaded.
1974      * @param title The title of the site being loaded.
1975      */
1976     void setUrlTitle(String url, String title) {
1977         mUrl = url;
1978         mTitle = title;
1979
1980         mTitleBar.setTitleAndUrl(title, url);
1981         mFakeTitleBar.setTitleAndUrl(title, url);
1982     }
1983
1984     /**
1985      * @param url The URL to build a title version of the URL from.
1986      * @return The title version of the URL or null if fails.
1987      * The title version of the URL can be either the URL hostname,
1988      * or the hostname with an "https://" prefix (for secure URLs),
1989      * or an empty string if, for example, the URL in question is a
1990      * file:// URL with no hostname.
1991      */
1992     /* package */ static String buildTitleUrl(String url) {
1993         String titleUrl = null;
1994
1995         if (url != null) {
1996             try {
1997                 // parse the url string
1998                 URL urlObj = new URL(url);
1999                 if (urlObj != null) {
2000                     titleUrl = "";
2001
2002                     String protocol = urlObj.getProtocol();
2003                     String host = urlObj.getHost();
2004
2005                     if (host != null && 0 < host.length()) {
2006                         titleUrl = host;
2007                         if (protocol != null) {
2008                             // if a secure site, add an "https://" prefix!
2009                             if (protocol.equalsIgnoreCase("https")) {
2010                                 titleUrl = protocol + "://" + host;
2011                             }
2012                         }
2013                     }
2014                 }
2015             } catch (MalformedURLException e) {}
2016         }
2017
2018         return titleUrl;
2019     }
2020
2021     // Set the favicon in the title bar.
2022     void setFavicon(Bitmap icon) {
2023         mTitleBar.setFavicon(icon);
2024         mFakeTitleBar.setFavicon(icon);
2025     }
2026
2027     /**
2028      * Close the tab, remove its associated title bar, and adjust mTabControl's
2029      * current tab to a valid value.
2030      */
2031     /* package */ void closeTab(Tab t) {
2032         int currentIndex = mTabControl.getCurrentIndex();
2033         int removeIndex = mTabControl.getTabIndex(t);
2034         mTabControl.removeTab(t);
2035         if (currentIndex >= removeIndex && currentIndex != 0) {
2036             currentIndex--;
2037         }
2038         mTabControl.setCurrentTab(mTabControl.getTab(currentIndex));
2039         resetTitleIconAndProgress();
2040     }
2041
2042     private void goBackOnePageOrQuit() {
2043         Tab current = mTabControl.getCurrentTab();
2044         if (current == null) {
2045             /*
2046              * Instead of finishing the activity, simply push this to the back
2047              * of the stack and let ActivityManager to choose the foreground
2048              * activity. As BrowserActivity is singleTask, it will be always the
2049              * root of the task. So we can use either true or false for
2050              * moveTaskToBack().
2051              */
2052             moveTaskToBack(true);
2053             return;
2054         }
2055         WebView w = current.getWebView();
2056         if (w.canGoBack()) {
2057             w.goBack();
2058         } else {
2059             // Check to see if we are closing a window that was created by
2060             // another window. If so, we switch back to that window.
2061             Tab parent = current.getParentTab();
2062             if (parent != null) {
2063                 switchToTab(mTabControl.getTabIndex(parent));
2064                 // Now we close the other tab
2065                 closeTab(current);
2066             } else {
2067                 if (current.closeOnExit()) {
2068                     // force the tab's inLoad() to be false as we are going to
2069                     // either finish the activity or remove the tab. This will
2070                     // ensure pauseWebViewTimers() taking action.
2071                     mTabControl.getCurrentTab().clearInLoad();
2072                     if (mTabControl.getTabCount() == 1) {
2073                         finish();
2074                         return;
2075                     }
2076                     // call pauseWebViewTimers() now, we won't be able to call
2077                     // it in onPause() as the WebView won't be valid.
2078                     // Temporarily change mActivityInPause to be true as
2079                     // pauseWebViewTimers() will do nothing if mActivityInPause
2080                     // is false.
2081                     boolean savedState = mActivityInPause;
2082                     if (savedState) {
2083                         Log.e(LOGTAG, "BrowserActivity is already paused "
2084                                 + "while handing goBackOnePageOrQuit.");
2085                     }
2086                     mActivityInPause = true;
2087                     pauseWebViewTimers();
2088                     mActivityInPause = savedState;
2089                     removeTabFromContentView(current);
2090                     mTabControl.removeTab(current);
2091                 }
2092                 /*
2093                  * Instead of finishing the activity, simply push this to the back
2094                  * of the stack and let ActivityManager to choose the foreground
2095                  * activity. As BrowserActivity is singleTask, it will be always the
2096                  * root of the task. So we can use either true or false for
2097                  * moveTaskToBack().
2098                  */
2099                 moveTaskToBack(true);
2100             }
2101         }
2102     }
2103
2104     boolean isMenuDown() {
2105         return mMenuIsDown;
2106     }
2107
2108     @Override
2109     public boolean onKeyDown(int keyCode, KeyEvent event) {
2110         // Even if MENU is already held down, we need to call to super to open
2111         // the IME on long press.
2112         if (KeyEvent.KEYCODE_MENU == keyCode) {
2113             mMenuIsDown = true;
2114             return super.onKeyDown(keyCode, event);
2115         }
2116         // The default key mode is DEFAULT_KEYS_SEARCH_LOCAL. As the MENU is
2117         // still down, we don't want to trigger the search. Pretend to consume
2118         // the key and do nothing.
2119         if (mMenuIsDown) return true;
2120
2121         switch(keyCode) {
2122             case KeyEvent.KEYCODE_SPACE:
2123                 // WebView/WebTextView handle the keys in the KeyDown. As
2124                 // the Activity's shortcut keys are only handled when WebView
2125                 // doesn't, have to do it in onKeyDown instead of onKeyUp.
2126                 if (event.isShiftPressed()) {
2127                     getTopWindow().pageUp(false);
2128                 } else {
2129                     getTopWindow().pageDown(false);
2130                 }
2131                 return true;
2132             case KeyEvent.KEYCODE_BACK:
2133                 if (event.getRepeatCount() == 0) {
2134                     event.startTracking();
2135                     return true;
2136                 } else if (mCustomView == null && mActiveTabsPage == null
2137                         && event.isLongPress()) {
2138                     bookmarksOrHistoryPicker(true);
2139                     return true;
2140                 }
2141                 break;
2142         }
2143         return super.onKeyDown(keyCode, event);
2144     }
2145
2146     @Override
2147     public boolean onKeyUp(int keyCode, KeyEvent event) {
2148         switch(keyCode) {
2149             case KeyEvent.KEYCODE_MENU:
2150                 mMenuIsDown = false;
2151                 break;
2152             case KeyEvent.KEYCODE_BACK:
2153                 if (event.isTracking() && !event.isCanceled()) {
2154                     if (mCustomView != null) {
2155                         // if a custom view is showing, hide it
2156                         mTabControl.getCurrentWebView().getWebChromeClient()
2157                                 .onHideCustomView();
2158                     } else if (mActiveTabsPage != null) {
2159                         // if tab page is showing, hide it
2160                         removeActiveTabPage(true);
2161                     } else {
2162                         WebView subwindow = mTabControl.getCurrentSubWindow();
2163                         if (subwindow != null) {
2164                             if (subwindow.canGoBack()) {
2165                                 subwindow.goBack();
2166                             } else {
2167                                 dismissSubWindow(mTabControl.getCurrentTab());
2168                             }
2169                         } else {
2170                             goBackOnePageOrQuit();
2171                         }
2172                     }
2173                     return true;
2174                 }
2175                 break;
2176         }
2177         return super.onKeyUp(keyCode, event);
2178     }
2179
2180     /* package */ void stopLoading() {
2181         mDidStopLoad = true;
2182         resetTitleAndRevertLockIcon();
2183         WebView w = getTopWindow();
2184         w.stopLoading();
2185         // FIXME: before refactor, it is using mWebViewClient. So I keep the
2186         // same logic here. But for subwindow case, should we call into the main
2187         // WebView's onPageFinished as we never call its onPageStarted and if
2188         // the page finishes itself, we don't call onPageFinished.
2189         mTabControl.getCurrentWebView().getWebViewClient().onPageFinished(w,
2190                 w.getUrl());
2191
2192         cancelStopToast();
2193         mStopToast = Toast
2194                 .makeText(this, R.string.stopping, Toast.LENGTH_SHORT);
2195         mStopToast.show();
2196     }
2197
2198     boolean didUserStopLoading() {
2199         return mDidStopLoad;
2200     }
2201
2202     private void cancelStopToast() {
2203         if (mStopToast != null) {
2204             mStopToast.cancel();
2205             mStopToast = null;
2206         }
2207     }
2208
2209     // called by a UI or non-UI thread to post the message
2210     public void postMessage(int what, int arg1, int arg2, Object obj,
2211             long delayMillis) {
2212         mHandler.sendMessageDelayed(mHandler.obtainMessage(what, arg1, arg2,
2213                 obj), delayMillis);
2214     }
2215
2216     // called by a UI or non-UI thread to remove the message
2217     void removeMessages(int what, Object object) {
2218         mHandler.removeMessages(what, object);
2219     }
2220
2221     // public message ids
2222     public final static int LOAD_URL                = 1001;
2223     public final static int STOP_LOAD               = 1002;
2224
2225     // Message Ids
2226     private static final int FOCUS_NODE_HREF         = 102;
2227     private static final int CANCEL_CREDS_REQUEST    = 103;
2228     private static final int RELEASE_WAKELOCK        = 107;
2229
2230     static final int UPDATE_BOOKMARK_THUMBNAIL       = 108;
2231
2232     // Private handler for handling javascript and saving passwords
2233     private Handler mHandler = new Handler() {
2234
2235         public void handleMessage(Message msg) {
2236             switch (msg.what) {
2237                 case FOCUS_NODE_HREF:
2238                 {
2239                     String url = (String) msg.getData().get("url");
2240                     String title = (String) msg.getData().get("title");
2241                     if (url == null || url.length() == 0) {
2242                         break;
2243                     }
2244                     HashMap focusNodeMap = (HashMap) msg.obj;
2245                     WebView view = (WebView) focusNodeMap.get("webview");
2246                     // Only apply the action if the top window did not change.
2247                     if (getTopWindow() != view) {
2248                         break;
2249                     }
2250                     switch (msg.arg1) {
2251                         case R.id.open_context_menu_id:
2252                         case R.id.view_image_context_menu_id:
2253                             loadURL(getTopWindow(), url);
2254                             break;
2255                         case R.id.open_newtab_context_menu_id:
2256                             final Tab parent = mTabControl.getCurrentTab();
2257                             final Tab newTab = openTab(url);
2258                             if (newTab != parent) {
2259                                 parent.addChildTab(newTab);
2260                             }
2261                             break;
2262                         case R.id.bookmark_context_menu_id:
2263                             Intent intent = new Intent(BrowserActivity.this,
2264                                     AddBookmarkPage.class);
2265                             intent.putExtra("url", url);
2266                             intent.putExtra("title", title);
2267                             startActivity(intent);
2268                             break;
2269                         case R.id.share_link_context_menu_id:
2270                             Browser.sendString(BrowserActivity.this, url,
2271                                     getText(R.string.choosertitle_sharevia).toString());
2272                             break;
2273                         case R.id.copy_link_context_menu_id:
2274                             copy(url);
2275                             break;
2276                         case R.id.save_link_context_menu_id:
2277                         case R.id.download_context_menu_id:
2278                             onDownloadStartNoStream(url, null, null, null, -1);
2279                             break;
2280                     }
2281                     break;
2282                 }
2283
2284                 case LOAD_URL:
2285                     loadURL(getTopWindow(), (String) msg.obj);
2286                     break;
2287
2288                 case STOP_LOAD:
2289                     stopLoading();
2290                     break;
2291
2292                 case CANCEL_CREDS_REQUEST:
2293                     resumeAfterCredentials();
2294                     break;
2295
2296                 case RELEASE_WAKELOCK:
2297                     if (mWakeLock.isHeld()) {
2298                         mWakeLock.release();
2299                         // if we reach here, Browser should be still in the
2300                         // background loading after WAKELOCK_TIMEOUT (5-min).
2301                         // To avoid burning the battery, stop loading.
2302                         mTabControl.stopAllLoading();
2303                     }
2304                     break;
2305
2306                 case UPDATE_BOOKMARK_THUMBNAIL:
2307                     WebView view = (WebView) msg.obj;
2308                     if (view != null) {
2309                         updateScreenshot(view);
2310                     }
2311                     break;
2312             }
2313         }
2314     };
2315
2316     private void updateScreenshot(WebView view) {
2317         // If this is a bookmarked site, add a screenshot to the database.
2318         // FIXME: When should we update?  Every time?
2319         // FIXME: Would like to make sure there is actually something to
2320         // draw, but the API for that (WebViewCore.pictureReady()) is not
2321         // currently accessible here.
2322
2323         ContentResolver cr = getContentResolver();
2324         final Cursor c = BrowserBookmarksAdapter.queryBookmarksForUrl(
2325                 cr, view.getOriginalUrl(), view.getUrl(), true);
2326         if (c != null) {
2327             boolean succeed = c.moveToFirst();
2328             ContentValues values = null;
2329             while (succeed) {
2330                 if (values == null) {
2331                     final ByteArrayOutputStream os
2332                             = new ByteArrayOutputStream();
2333                     Bitmap bm = createScreenshot(view);
2334                     if (bm == null) {
2335                         c.close();
2336                         return;
2337                     }
2338                     bm.compress(Bitmap.CompressFormat.PNG, 100, os);
2339                     values = new ContentValues();
2340                     values.put(Browser.BookmarkColumns.THUMBNAIL,
2341                             os.toByteArray());
2342                 }
2343                 cr.update(ContentUris.withAppendedId(Browser.BOOKMARKS_URI,
2344                         c.getInt(0)), values, null, null);
2345                 succeed = c.moveToNext();
2346             }
2347             c.close();
2348         }
2349     }
2350
2351     /**
2352      * Values for the size of the thumbnail created when taking a screenshot.
2353      * Lazily initialized.  Instead of using these directly, use
2354      * getDesiredThumbnailWidth() or getDesiredThumbnailHeight().
2355      */
2356     private static int THUMBNAIL_WIDTH = 0;
2357     private static int THUMBNAIL_HEIGHT = 0;
2358
2359     /**
2360      * Return the desired width for thumbnail screenshots, which are stored in
2361      * the database, and used on the bookmarks screen.
2362      * @param context Context for finding out the density of the screen.
2363      * @return int desired width for thumbnail screenshot.
2364      */
2365     /* package */ static int getDesiredThumbnailWidth(Context context) {
2366         if (THUMBNAIL_WIDTH == 0) {
2367             float density = context.getResources().getDisplayMetrics().density;
2368             THUMBNAIL_WIDTH = (int) (90 * density);
2369             THUMBNAIL_HEIGHT = (int) (80 * density);
2370         }
2371         return THUMBNAIL_WIDTH;
2372     }
2373
2374     /**
2375      * Return the desired height for thumbnail screenshots, which are stored in
2376      * the database, and used on the bookmarks screen.
2377      * @param context Context for finding out the density of the screen.
2378      * @return int desired height for thumbnail screenshot.
2379      */
2380     /* package */ static int getDesiredThumbnailHeight(Context context) {
2381         // To ensure that they are both initialized.
2382         getDesiredThumbnailWidth(context);
2383         return THUMBNAIL_HEIGHT;
2384     }
2385
2386     private Bitmap createScreenshot(WebView view) {
2387         Picture thumbnail = view.capturePicture();
2388         if (thumbnail == null) {
2389             return null;
2390         }
2391         Bitmap bm = Bitmap.createBitmap(getDesiredThumbnailWidth(this),
2392                 getDesiredThumbnailHeight(this), Bitmap.Config.ARGB_4444);
2393         Canvas canvas = new Canvas(bm);
2394         // May need to tweak these values to determine what is the
2395         // best scale factor
2396         int thumbnailWidth = thumbnail.getWidth();
2397         int thumbnailHeight = thumbnail.getHeight();
2398         float scaleFactorX = 1.0f;
2399         float scaleFactorY = 1.0f;
2400         if (thumbnailWidth > 0) {
2401             scaleFactorX = (float) getDesiredThumbnailWidth(this) /
2402                     (float)thumbnailWidth;
2403         } else {
2404             return null;
2405         }
2406
2407         if (view.getWidth() > view.getHeight() &&
2408                 thumbnailHeight < view.getHeight() && thumbnailHeight > 0) {
2409             // If the device is in landscape and the page is shorter
2410             // than the height of the view, stretch the thumbnail to fill the
2411             // space.
2412             scaleFactorY = (float) getDesiredThumbnailHeight(this) /
2413                     (float)thumbnailHeight;
2414         } else {
2415             // In the portrait case, this looks nice.
2416             scaleFactorY = scaleFactorX;
2417         }
2418
2419         canvas.scale(scaleFactorX, scaleFactorY);
2420
2421         thumbnail.draw(canvas);
2422         return bm;
2423     }
2424
2425     // -------------------------------------------------------------------------
2426     // Helper function for WebViewClient.
2427     //-------------------------------------------------------------------------
2428
2429     // Use in overrideUrlLoading
2430     /* package */ final static String SCHEME_WTAI = "wtai://wp/";
2431     /* package */ final static String SCHEME_WTAI_MC = "wtai://wp/mc;";
2432     /* package */ final static String SCHEME_WTAI_SD = "wtai://wp/sd;";
2433     /* package */ final static String SCHEME_WTAI_AP = "wtai://wp/ap;";
2434
2435     void onPageStarted(WebView view, String url, Bitmap favicon) {
2436         // when BrowserActivity just starts, onPageStarted may be called before
2437         // onResume as it is triggered from onCreate. Call resumeWebViewTimers
2438         // to start the timer. As we won't switch tabs while an activity is in
2439         // pause state, we can ensure calling resume and pause in pair.
2440         if (mActivityInPause) resumeWebViewTimers();
2441
2442         resetLockIcon(url);
2443         setUrlTitle(url, null);
2444         setFavicon(favicon);
2445         // Keep this initial progress in sync with initialProgressValue (* 100)
2446         // in ProgressTracker.cpp
2447         // Show some progress so that the user knows the page is beginning to
2448         // load
2449         onProgressChanged(view, 10);
2450         mDidStopLoad = false;
2451         if (!mIsNetworkUp) createAndShowNetworkDialog();
2452
2453         if (mSettings.isTracing()) {
2454             String host;
2455             try {
2456                 WebAddress uri = new WebAddress(url);
2457                 host = uri.mHost;
2458             } catch (android.net.ParseException ex) {
2459                 host = "browser";
2460             }
2461             host = host.replace('.', '_');
2462             host += ".trace";
2463             mInTrace = true;
2464             Debug.startMethodTracing(host, 20 * 1024 * 1024);
2465         }
2466
2467         // Performance probe
2468         if (false) {
2469             mStart = SystemClock.uptimeMillis();
2470             mProcessStart = Process.getElapsedCpuTime();
2471             long[] sysCpu = new long[7];
2472             if (Process.readProcFile("/proc/stat", SYSTEM_CPU_FORMAT, null,
2473                     sysCpu, null)) {
2474                 mUserStart = sysCpu[0] + sysCpu[1];
2475                 mSystemStart = sysCpu[2];
2476                 mIdleStart = sysCpu[3];
2477                 mIrqStart = sysCpu[4] + sysCpu[5] + sysCpu[6];
2478             }
2479             mUiStart = SystemClock.currentThreadTimeMillis();
2480         }
2481     }
2482
2483     void onPageFinished(WebView view, String url) {
2484         // Reset the title and icon in case we stopped a provisional load.
2485         resetTitleAndIcon(view);
2486         // Update the lock icon image only once we are done loading
2487         updateLockIconToLatest();
2488         // pause the WebView timer and release the wake lock if it is finished
2489         // while BrowserActivity is in pause state.
2490         if (mActivityInPause && pauseWebViewTimers()) {
2491             if (mWakeLock.isHeld()) {
2492                 mHandler.removeMessages(RELEASE_WAKELOCK);
2493                 mWakeLock.release();
2494             }
2495         }
2496
2497         // Performance probe
2498         if (false) {
2499             long[] sysCpu = new long[7];
2500             if (Process.readProcFile("/proc/stat", SYSTEM_CPU_FORMAT, null,
2501                     sysCpu, null)) {
2502                 String uiInfo = "UI thread used "
2503                         + (SystemClock.currentThreadTimeMillis() - mUiStart)
2504                         + " ms";
2505                 if (LOGD_ENABLED) {
2506                     Log.d(LOGTAG, uiInfo);
2507                 }
2508                 //The string that gets written to the log
2509                 String performanceString = "It took total "
2510                         + (SystemClock.uptimeMillis() - mStart)
2511                         + " ms clock time to load the page."
2512                         + "\nbrowser process used "
2513                         + (Process.getElapsedCpuTime() - mProcessStart)
2514                         + " ms, user processes used "
2515                         + (sysCpu[0] + sysCpu[1] - mUserStart) * 10
2516                         + " ms, kernel used "
2517                         + (sysCpu[2] - mSystemStart) * 10
2518                         + " ms, idle took " + (sysCpu[3] - mIdleStart) * 10
2519                         + " ms and irq took "
2520                         + (sysCpu[4] + sysCpu[5] + sysCpu[6] - mIrqStart)
2521                         * 10 + " ms, " + uiInfo;
2522                 if (LOGD_ENABLED) {
2523                     Log.d(LOGTAG, performanceString + "\nWebpage: " + url);
2524                 }
2525                 if (url != null) {
2526                     // strip the url to maintain consistency
2527                     String newUrl = new String(url);
2528                     if (newUrl.startsWith("http://www.")) {
2529                         newUrl = newUrl.substring(11);
2530                     } else if (newUrl.startsWith("http://")) {
2531                         newUrl = newUrl.substring(7);
2532                     } else if (newUrl.startsWith("https://www.")) {
2533                         newUrl = newUrl.substring(12);
2534                     } else if (newUrl.startsWith("https://")) {
2535                         newUrl = newUrl.substring(8);
2536                     }
2537                     if (LOGD_ENABLED) {
2538                         Log.d(LOGTAG, newUrl + " loaded");
2539                     }
2540                 }
2541             }
2542          }
2543
2544         if (mInTrace) {
2545             mInTrace = false;
2546             Debug.stopMethodTracing();
2547         }
2548     }
2549
2550     boolean shouldOverrideUrlLoading(WebView view, String url) {
2551         if (url.startsWith(SCHEME_WTAI)) {
2552             // wtai://wp/mc;number
2553             // number=string(phone-number)
2554             if (url.startsWith(SCHEME_WTAI_MC)) {
2555                 Intent intent = new Intent(Intent.ACTION_VIEW,
2556                         Uri.parse(WebView.SCHEME_TEL +
2557                         url.substring(SCHEME_WTAI_MC.length())));
2558                 startActivity(intent);
2559                 return true;
2560             }
2561             // wtai://wp/sd;dtmf
2562             // dtmf=string(dialstring)
2563             if (url.startsWith(SCHEME_WTAI_SD)) {
2564                 // TODO: only send when there is active voice connection
2565                 return false;
2566             }
2567             // wtai://wp/ap;number;name
2568             // number=string(phone-number)
2569             // name=string
2570             if (url.startsWith(SCHEME_WTAI_AP)) {
2571                 // TODO
2572                 return false;
2573             }
2574         }
2575
2576         // The "about:" schemes are internal to the browser; don't want these to
2577         // be dispatched to other apps.
2578         if (url.startsWith("about:")) {
2579             return false;
2580         }
2581
2582         Intent intent;
2583         // perform generic parsing of the URI to turn it into an Intent.
2584         try {
2585             intent = Intent.parseUri(url, Intent.URI_INTENT_SCHEME);
2586         } catch (URISyntaxException ex) {
2587             Log.w("Browser", "Bad URI " + url + ": " + ex.getMessage());
2588             return false;
2589         }
2590
2591         // check whether the intent can be resolved. If not, we will see
2592         // whether we can download it from the Market.
2593         if (getPackageManager().resolveActivity(intent, 0) == null) {
2594             String packagename = intent.getPackage();
2595             if (packagename != null) {
2596                 intent = new Intent(Intent.ACTION_VIEW, Uri
2597                         .parse("market://search?q=pname:" + packagename));
2598                 intent.addCategory(Intent.CATEGORY_BROWSABLE);
2599                 startActivity(intent);
2600                 return true;
2601             } else {
2602                 return false;
2603             }
2604         }
2605
2606         // sanitize the Intent, ensuring web pages can not bypass browser
2607         // security (only access to BROWSABLE activities).
2608         intent.addCategory(Intent.CATEGORY_BROWSABLE);
2609         intent.setComponent(null);
2610         try {
2611             if (startActivityIfNeeded(intent, -1)) {
2612                 return true;
2613             }
2614         } catch (ActivityNotFoundException ex) {
2615             // ignore the error. If no application can handle the URL,
2616             // eg about:blank, assume the browser can handle it.
2617         }
2618
2619         if (mMenuIsDown) {
2620             openTab(url);
2621             closeOptionsMenu();
2622             return true;
2623         }
2624         return false;
2625     }
2626
2627     // -------------------------------------------------------------------------
2628     // Helper function for WebChromeClient
2629     // -------------------------------------------------------------------------
2630
2631     void onProgressChanged(WebView view, int newProgress) {
2632         mTitleBar.setProgress(newProgress);
2633         mFakeTitleBar.setProgress(newProgress);
2634
2635         if (newProgress == 100) {
2636             // onProgressChanged() may continue to be called after the main
2637             // frame has finished loading, as any remaining sub frames continue
2638             // to load. We'll only get called once though with newProgress as
2639             // 100 when everything is loaded. (onPageFinished is called once
2640             // when the main frame completes loading regardless of the state of
2641             // any sub frames so calls to onProgressChanges may continue after
2642             // onPageFinished has executed)
2643             if (mInLoad) {
2644                 mInLoad = false;
2645                 updateInLoadMenuItems();
2646                 // If the options menu is open, leave the title bar
2647                 if (!mOptionsMenuOpen || !mIconView) {
2648                     hideFakeTitleBar();
2649                 }
2650             }
2651         } else if (!mInLoad) {
2652             // onPageFinished may have already been called but a subframe is
2653             // still loading and updating the progress. Reset mInLoad and update
2654             // the menu items.
2655             mInLoad = true;
2656             updateInLoadMenuItems();
2657             if (!mOptionsMenuOpen || mIconView) {
2658                 // This page has begun to load, so show the title bar
2659                 showFakeTitleBar();
2660             }
2661         }
2662     }
2663
2664     void onShowCustomView(View view, WebChromeClient.CustomViewCallback callback) {
2665         if (mCustomView != null)
2666             return;
2667
2668         // Add the custom view to its container.
2669         mCustomViewContainer.addView(view, COVER_SCREEN_GRAVITY_CENTER);
2670         mCustomView = view;
2671         mCustomViewCallback = callback;
2672         // Save the menu state and set it to empty while the custom
2673         // view is showing.
2674         mOldMenuState = mMenuState;
2675         mMenuState = EMPTY_MENU;
2676         // Hide the content view.
2677         mContentView.setVisibility(View.GONE);
2678         // Finally show the custom view container.
2679         setStatusBarVisibility(false);
2680         mCustomViewContainer.setVisibility(View.VISIBLE);
2681         mCustomViewContainer.bringToFront();
2682     }
2683
2684     void onHideCustomView() {
2685         if (mCustomView == null)
2686             return;
2687
2688         // Hide the custom view.
2689         mCustomView.setVisibility(View.GONE);
2690         // Remove the custom view from its container.
2691         mCustomViewContainer.removeView(mCustomView);
2692         mCustomView = null;
2693         // Reset the old menu state.
2694         mMenuState = mOldMenuState;
2695         mOldMenuState = EMPTY_MENU;
2696         mCustomViewContainer.setVisibility(View.GONE);
2697         mCustomViewCallback.onCustomViewHidden();
2698         // Show the content view.
2699         setStatusBarVisibility(true);
2700         mContentView.setVisibility(View.VISIBLE);
2701     }
2702
2703     Bitmap getDefaultVideoPoster() {
2704         if (mDefaultVideoPoster == null) {
2705             mDefaultVideoPoster = BitmapFactory.decodeResource(
2706                     getResources(), R.drawable.default_video_poster);
2707         }
2708         return mDefaultVideoPoster;
2709     }
2710
2711     View getVideoLoadingProgressView() {
2712         if (mVideoProgressView == null) {
2713             LayoutInflater inflater = LayoutInflater.from(BrowserActivity.this);
2714             mVideoProgressView = inflater.inflate(
2715                     R.layout.video_loading_progress, null);
2716         }
2717         return mVideoProgressView;
2718     }
2719
2720     /*
2721      * The Object used to inform the WebView of the file to upload.
2722      */
2723     private ValueCallback<Uri> mUploadMessage;
2724
2725     void openFileChooser(ValueCallback<Uri> uploadMsg) {
2726         if (mUploadMessage != null) return;
2727         mUploadMessage = uploadMsg;
2728         Intent i = new Intent(Intent.ACTION_GET_CONTENT);
2729         i.addCategory(Intent.CATEGORY_OPENABLE);
2730         i.setType("*/*");
2731         BrowserActivity.this.startActivityForResult(Intent.createChooser(i,
2732                 getString(R.string.choose_upload)), FILE_SELECTED);
2733     }
2734
2735     // -------------------------------------------------------------------------
2736     // Implement functions for DownloadListener
2737     // -------------------------------------------------------------------------
2738
2739     /**
2740      * Notify the host application a download should be done, or that
2741      * the data should be streamed if a streaming viewer is available.
2742      * @param url The full url to the content that should be downloaded
2743      * @param contentDisposition Content-disposition http header, if
2744      *                           present.
2745      * @param mimetype The mimetype of the content reported by the server
2746      * @param contentLength The file size reported by the server
2747      */
2748     public void onDownloadStart(String url, String userAgent,
2749             String contentDisposition, String mimetype, long contentLength) {
2750         // if we're dealing wih A/V content that's not explicitly marked
2751         //     for download, check if it's streamable.
2752         if (contentDisposition == null
2753                 || !contentDisposition.regionMatches(
2754                         true, 0, "attachment", 0, 10)) {
2755             // query the package manager to see if there's a registered handler
2756             //     that matches.
2757             Intent intent = new Intent(Intent.ACTION_VIEW);
2758             intent.setDataAndType(Uri.parse(url), mimetype);
2759             ResolveInfo info = getPackageManager().resolveActivity(intent,
2760                     PackageManager.MATCH_DEFAULT_ONLY);
2761             if (info != null) {
2762                 ComponentName myName = getComponentName();
2763                 // If we resolved to ourselves, we don't want to attempt to
2764                 // load the url only to try and download it again.
2765                 if (!myName.getPackageName().equals(
2766                         info.activityInfo.packageName)
2767                         || !myName.getClassName().equals(
2768                                 info.activityInfo.name)) {
2769                     // someone (other than us) knows how to handle this mime
2770                     // type with this scheme, don't download.
2771                     try {
2772                         startActivity(intent);
2773                         return;
2774                     } catch (ActivityNotFoundException ex) {
2775                         if (LOGD_ENABLED) {
2776                             Log.d(LOGTAG, "activity not found for " + mimetype
2777                                     + " over " + Uri.parse(url).getScheme(),
2778                                     ex);
2779                         }
2780                         // Best behavior is to fall back to a download in this
2781                         // case
2782                     }
2783                 }
2784             }
2785         }
2786         onDownloadStartNoStream(url, userAgent, contentDisposition, mimetype, contentLength);
2787     }
2788
2789     /**
2790      * Notify the host application a download should be done, even if there
2791      * is a streaming viewer available for thise type.
2792      * @param url The full url to the content that should be downloaded
2793      * @param contentDisposition Content-disposition http header, if
2794      *                           present.
2795      * @param mimetype The mimetype of the content reported by the server
2796      * @param contentLength The file size reported by the server
2797      */
2798     /*package */ void onDownloadStartNoStream(String url, String userAgent,
2799             String contentDisposition, String mimetype, long contentLength) {
2800
2801         String filename = URLUtil.guessFileName(url,
2802                 contentDisposition, mimetype);
2803
2804         // Check to see if we have an SDCard
2805         String status = Environment.getExternalStorageState();
2806         if (!status.equals(Environment.MEDIA_MOUNTED)) {
2807             int title;
2808             String msg;
2809
2810             // Check to see if the SDCard is busy, same as the music app
2811             if (status.equals(Environment.MEDIA_SHARED)) {
2812                 msg = getString(R.string.download_sdcard_busy_dlg_msg);
2813                 title = R.string.download_sdcard_busy_dlg_title;
2814             } else {
2815                 msg = getString(R.string.download_no_sdcard_dlg_msg, filename);
2816                 title = R.string.download_no_sdcard_dlg_title;
2817             }
2818
2819             new AlertDialog.Builder(this)
2820                 .setTitle(title)
2821                 .setIcon(android.R.drawable.ic_dialog_alert)
2822                 .setMessage(msg)
2823                 .setPositiveButton(R.string.ok, null)
2824                 .show();
2825             return;
2826         }
2827
2828         // java.net.URI is a lot stricter than KURL so we have to undo
2829         // KURL's percent-encoding and redo the encoding using java.net.URI.
2830         URI uri = null;
2831         try {
2832             // Undo the percent-encoding that KURL may have done.
2833             String newUrl = new String(URLUtil.decode(url.getBytes()));
2834             // Parse the url into pieces
2835             WebAddress w = new WebAddress(newUrl);
2836             String frag = null;
2837             String query = null;
2838             String path = w.mPath;
2839             // Break the path into path, query, and fragment
2840             if (path.length() > 0) {
2841                 // Strip the fragment
2842                 int idx = path.lastIndexOf('#');
2843                 if (idx != -1) {
2844                     frag = path.substring(idx + 1);
2845                     path = path.substring(0, idx);
2846                 }
2847                 idx = path.lastIndexOf('?');
2848                 if (idx != -1) {
2849                     query = path.substring(idx + 1);
2850                     path = path.substring(0, idx);
2851                 }
2852             }
2853             uri = new URI(w.mScheme, w.mAuthInfo, w.mHost, w.mPort, path,
2854                     query, frag);
2855         } catch (Exception e) {
2856             Log.e(LOGTAG, "Could not parse url for download: " + url, e);
2857             return;
2858         }
2859
2860         // XXX: Have to use the old url since the cookies were stored using the
2861         // old percent-encoded url.
2862         String cookies = CookieManager.getInstance().getCookie(url);
2863
2864         ContentValues values = new ContentValues();
2865         values.put(Downloads.COLUMN_URI, uri.toString());
2866         values.put(Downloads.COLUMN_COOKIE_DATA, cookies);
2867         values.put(Downloads.COLUMN_USER_AGENT, userAgent);
2868         values.put(Downloads.COLUMN_NOTIFICATION_PACKAGE,
2869                 getPackageName());
2870         values.put(Downloads.COLUMN_NOTIFICATION_CLASS,
2871                 BrowserDownloadPage.class.getCanonicalName());
2872         values.put(Downloads.COLUMN_VISIBILITY, Downloads.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
2873         values.put(Downloads.COLUMN_MIME_TYPE, mimetype);
2874         values.put(Downloads.COLUMN_FILE_NAME_HINT, filename);
2875         values.put(Downloads.COLUMN_DESCRIPTION, uri.getHost());
2876         if (contentLength > 0) {
2877             values.put(Downloads.COLUMN_TOTAL_BYTES, contentLength);
2878         }
2879         if (mimetype == null) {
2880             // We must have long pressed on a link or image to download it. We
2881             // are not sure of the mimetype in this case, so do a head request
2882             new FetchUrlMimeType(this).execute(values);
2883         } else {
2884             final Uri contentUri =
2885                     getContentResolver().insert(Downloads.CONTENT_URI, values);
2886             viewDownloads(contentUri);
2887         }
2888
2889     }
2890
2891     // -------------------------------------------------------------------------
2892
2893     /**
2894      * Resets the lock icon. This method is called when we start a new load and
2895      * know the url to be loaded.
2896      */
2897     private void resetLockIcon(String url) {
2898         // Save the lock-icon state (we revert to it if the load gets cancelled)
2899         mTabControl.getCurrentTab().resetLockIcon(url);
2900         updateLockIconImage(LOCK_ICON_UNSECURE);
2901     }
2902
2903     /**
2904      * Update the lock icon to correspond to our latest state.
2905      */
2906     private void updateLockIconToLatest() {
2907         updateLockIconImage(mTabControl.getCurrentTab().getLockIconType());
2908     }
2909
2910     /**
2911      * Updates the lock-icon image in the title-bar.
2912      */
2913     private void updateLockIconImage(int lockIconType) {
2914         Drawable d = null;
2915         if (lockIconType == LOCK_ICON_SECURE) {
2916             d = mSecLockIcon;
2917         } else if (lockIconType == LOCK_ICON_MIXED) {
2918             d = mMixLockIcon;
2919         }
2920         mTitleBar.setLock(d);
2921         mFakeTitleBar.setLock(d);
2922     }
2923
2924     /**
2925      * Displays a page-info dialog.
2926      * @param tab The tab to show info about
2927      * @param fromShowSSLCertificateOnError The flag that indicates whether
2928      * this dialog was opened from the SSL-certificate-on-error dialog or
2929      * not. This is important, since we need to know whether to return to
2930      * the parent dialog or simply dismiss.
2931      */
2932     private void showPageInfo(final Tab tab,
2933                               final boolean fromShowSSLCertificateOnError) {
2934         final LayoutInflater factory = LayoutInflater
2935                 .from(this);
2936
2937         final View pageInfoView = factory.inflate(R.layout.page_info, null);
2938
2939         final WebView view = tab.getWebView();
2940
2941         String url = null;
2942         String title = null;
2943
2944         if (view == null) {
2945             url = tab.getUrl();
2946             title = tab.getTitle();
2947         } else if (view == mTabControl.getCurrentWebView()) {
2948              // Use the cached title and url if this is the current WebView
2949             url = mUrl;
2950             title = mTitle;
2951         } else {
2952             url = view.getUrl();
2953             title = view.getTitle();
2954         }
2955
2956         if (url == null) {
2957             url = "";
2958         }
2959         if (title == null) {
2960             title = "";
2961         }
2962
2963         ((TextView) pageInfoView.findViewById(R.id.address)).setText(url);
2964         ((TextView) pageInfoView.findViewById(R.id.title)).setText(title);
2965
2966         mPageInfoView = tab;
2967         mPageInfoFromShowSSLCertificateOnError = new Boolean(fromShowSSLCertificateOnError);
2968
2969         AlertDialog.Builder alertDialogBuilder =
2970             new AlertDialog.Builder(this)
2971             .setTitle(R.string.page_info).setIcon(android.R.drawable.ic_dialog_info)
2972             .setView(pageInfoView)
2973             .setPositiveButton(
2974                 R.string.ok,
2975                 new DialogInterface.OnClickListener() {
2976                     public void onClick(DialogInterface dialog,
2977                                         int whichButton) {
2978                         mPageInfoDialog = null;
2979                         mPageInfoView = null;
2980                         mPageInfoFromShowSSLCertificateOnError = null;
2981
2982                         // if we came here from the SSL error dialog
2983                         if (fromShowSSLCertificateOnError) {
2984                             // go back to the SSL error dialog
2985                             showSSLCertificateOnError(
2986                                 mSSLCertificateOnErrorView,
2987                                 mSSLCertificateOnErrorHandler,
2988                                 mSSLCertificateOnErrorError);
2989                         }
2990                     }
2991                 })
2992             .setOnCancelListener(
2993                 new DialogInterface.OnCancelListener() {
2994                     public void onCancel(DialogInterface dialog) {
2995                         mPageInfoDialog = null;
2996                         mPageInfoView = null;
2997                         mPageInfoFromShowSSLCertificateOnError = null;
2998
2999                         // if we came here from the SSL error dialog
3000                         if (fromShowSSLCertificateOnError) {
3001                             // go back to the SSL error dialog
3002                             showSSLCertificateOnError(
3003                                 mSSLCertificateOnErrorView,
3004                                 mSSLCertificateOnErrorHandler,
3005                                 mSSLCertificateOnErrorError);
3006                         }
3007                     }
3008                 });
3009
3010         // if we have a main top-level page SSL certificate set or a certificate
3011         // error
3012         if (fromShowSSLCertificateOnError ||
3013                 (view != null && view.getCertificate() != null)) {
3014             // add a 'View Certificate' button
3015             alertDialogBuilder.setNeutralButton(
3016                 R.string.view_certificate,
3017                 new DialogInterface.OnClickListener() {
3018                     public void onClick(DialogInterface dialog,
3019                                         int whichButton) {
3020                         mPageInfoDialog = null;
3021                         mPageInfoView = null;
3022                         mPageInfoFromShowSSLCertificateOnError = null;
3023
3024                         // if we came here from the SSL error dialog
3025                         if (fromShowSSLCertificateOnError) {
3026                             // go back to the SSL error dialog
3027                             showSSLCertificateOnError(
3028                                 mSSLCertificateOnErrorView,
3029                                 mSSLCertificateOnErrorHandler,
3030                                 mSSLCertificateOnErrorError);
3031                         } else {
3032                             // otherwise, display the top-most certificate from
3033                             // the chain
3034                             if (view.getCertificate() != null) {
3035                                 showSSLCertificate(tab);
3036                             }
3037                         }
3038                     }
3039                 });
3040         }
3041
3042         mPageInfoDialog = alertDialogBuilder.show();
3043     }
3044
3045        /**
3046      * Displays the main top-level page SSL certificate dialog
3047      * (accessible from the Page-Info dialog).
3048      * @param tab The tab to show certificate for.
3049      */
3050     private void showSSLCertificate(final Tab tab) {
3051         final View certificateView =
3052                 inflateCertificateView(tab.getWebView().getCertificate());
3053         if (certificateView == null) {
3054             return;
3055         }
3056
3057         LayoutInflater factory = LayoutInflater.from(this);
3058
3059         final LinearLayout placeholder =
3060                 (LinearLayout)certificateView.findViewById(R.id.placeholder);
3061
3062         LinearLayout ll = (LinearLayout) factory.inflate(
3063             R.layout.ssl_success, placeholder);
3064         ((TextView)ll.findViewById(R.id.success))
3065             .setText(R.string.ssl_certificate_is_valid);
3066
3067         mSSLCertificateView = tab;
3068         mSSLCertificateDialog =
3069             new AlertDialog.Builder(this)
3070                 .setTitle(R.string.ssl_certificate).setIcon(
3071                     R.drawable.ic_dialog_browser_certificate_secure)
3072                 .setView(certificateView)
3073                 .setPositiveButton(R.string.ok,
3074                         new DialogInterface.OnClickListener() {
3075                             public void onClick(DialogInterface dialog,
3076                                     int whichButton) {
3077                                 mSSLCertificateDialog = null;
3078                                 mSSLCertificateView = null;
3079
3080                                 showPageInfo(tab, false);
3081                             }
3082                         })
3083                 .setOnCancelListener(
3084                         new DialogInterface.OnCancelListener() {
3085                             public void onCancel(DialogInterface dialog) {
3086                                 mSSLCertificateDialog = null;
3087                                 mSSLCertificateView = null;
3088
3089                                 showPageInfo(tab, false);
3090                             }
3091                         })
3092                 .show();
3093     }
3094
3095     /**
3096      * Displays the SSL error certificate dialog.
3097      * @param view The target web-view.
3098      * @param handler The SSL error handler responsible for cancelling the
3099      * connection that resulted in an SSL error or proceeding per user request.
3100      * @param error The SSL error object.
3101      */
3102     void showSSLCertificateOnError(
3103         final WebView view, final SslErrorHandler handler, final SslError error) {
3104
3105         final View certificateView =
3106             inflateCertificateView(error.getCertificate());
3107         if (certificateView == null) {
3108             return;
3109         }
3110
3111         LayoutInflater factory = LayoutInflater.from(this);
3112
3113         final LinearLayout placeholder =
3114                 (LinearLayout)certificateView.findViewById(R.id.placeholder);
3115
3116         if (error.hasError(SslError.SSL_UNTRUSTED)) {
3117             LinearLayout ll = (LinearLayout)factory
3118                 .inflate(R.layout.ssl_warning, placeholder);
3119             ((TextView)ll.findViewById(R.id.warning))
3120                 .setText(R.string.ssl_untrusted);
3121         }
3122
3123         if (error.hasError(SslError.SSL_IDMISMATCH)) {
3124             LinearLayout ll = (LinearLayout)factory
3125                 .inflate(R.layout.ssl_warning, placeholder);
3126             ((TextView)ll.findViewById(R.id.warning))
3127                 .setText(R.string.ssl_mismatch);
3128         }
3129
3130         if (error.hasError(SslError.SSL_EXPIRED)) {
3131             LinearLayout ll = (LinearLayout)factory
3132                 .inflate(R.layout.ssl_warning, placeholder);
3133             ((TextView)ll.findViewById(R.id.warning))
3134                 .setText(R.string.ssl_expired);
3135         }
3136
3137         if (error.hasError(SslError.SSL_NOTYETVALID)) {
3138             LinearLayout ll = (LinearLayout)factory
3139                 .inflate(R.layout.ssl_warning, placeholder);
3140             ((TextView)ll.findViewById(R.id.warning))
3141                 .setText(R.string.ssl_not_yet_valid);
3142         }
3143
3144         mSSLCertificateOnErrorHandler = handler;
3145         mSSLCertificateOnErrorView = view;
3146         mSSLCertificateOnErrorError = error;
3147         mSSLCertificateOnErrorDialog =
3148             new AlertDialog.Builder(this)
3149                 .setTitle(R.string.ssl_certificate).setIcon(
3150                     R.drawable.ic_dialog_browser_certificate_partially_secure)
3151                 .setView(certificateView)
3152                 .setPositiveButton(R.string.ok,
3153                         new DialogInterface.OnClickListener() {
3154                             public void onClick(DialogInterface dialog,
3155                                     int whichButton) {
3156                                 mSSLCertificateOnErrorDialog = null;
3157                                 mSSLCertificateOnErrorView = null;
3158                                 mSSLCertificateOnErrorHandler = null;
3159                                 mSSLCertificateOnErrorError = null;
3160
3161                                 view.getWebViewClient().onReceivedSslError(
3162                                                 view, handler, error);
3163                             }
3164                         })
3165                  .setNeutralButton(R.string.page_info_view,
3166                         new DialogInterface.OnClickListener() {
3167                             public void onClick(DialogInterface dialog,
3168                                     int whichButton) {
3169                                 mSSLCertificateOnErrorDialog = null;
3170
3171                                 // do not clear the dialog state: we will
3172                                 // need to show the dialog again once the
3173                                 // user is done exploring the page-info details
3174
3175                                 showPageInfo(mTabControl.getTabFromView(view),
3176                                         true);
3177                             }
3178                         })
3179                 .setOnCancelListener(
3180                         new DialogInterface.OnCancelListener() {
3181                             public void onCancel(DialogInterface dialog) {
3182                                 mSSLCertificateOnErrorDialog = null;
3183                                 mSSLCertificateOnErrorView = null;
3184                                 mSSLCertificateOnErrorHandler = null;
3185                                 mSSLCertificateOnErrorError = null;
3186
3187                                 view.getWebViewClient().onReceivedSslError(
3188                                                 view, handler, error);
3189                             }
3190                         })
3191                 .show();
3192     }
3193
3194     /**
3195      * Inflates the SSL certificate view (helper method).
3196      * @param certificate The SSL certificate.
3197      * @return The resultant certificate view with issued-to, issued-by,
3198      * issued-on, expires-on, and possibly other fields set.
3199      * If the input certificate is null, returns null.
3200      */
3201     private View inflateCertificateView(SslCertificate certificate) {
3202         if (certificate == null) {
3203             return null;
3204         }
3205
3206         LayoutInflater factory = LayoutInflater.from(this);
3207
3208         View certificateView = factory.inflate(
3209             R.layout.ssl_certificate, null);
3210
3211         // issued to:
3212         SslCertificate.DName issuedTo = certificate.getIssuedTo();
3213         if (issuedTo != null) {
3214             ((TextView) certificateView.findViewById(R.id.to_common))
3215                 .setText(issuedTo.getCName());
3216             ((TextView) certificateView.findViewById(R.id.to_org))
3217                 .setText(issuedTo.getOName());
3218             ((TextView) certificateView.findViewById(R.id.to_org_unit))
3219                 .setText(issuedTo.getUName());
3220         }
3221
3222         // issued by:
3223         SslCertificate.DName issuedBy = certificate.getIssuedBy();
3224         if (issuedBy != null) {
3225             ((TextView) certificateView.findViewById(R.id.by_common))
3226                 .setText(issuedBy.getCName());
3227             ((TextView) certificateView.findViewById(R.id.by_org))
3228                 .setText(issuedBy.getOName());
3229             ((TextView) certificateView.findViewById(R.id.by_org_unit))
3230                 .setText(issuedBy.getUName());
3231         }
3232
3233         // issued on:
3234         String issuedOn = reformatCertificateDate(
3235             certificate.getValidNotBefore());
3236         ((TextView) certificateView.findViewById(R.id.issued_on))
3237             .setText(issuedOn);
3238
3239         // expires on:
3240         String expiresOn = reformatCertificateDate(
3241             certificate.getValidNotAfter());
3242         ((TextView) certificateView.findViewById(R.id.expires_on))
3243             .setText(expiresOn);
3244
3245         return certificateView;
3246     }
3247
3248     /**
3249      * Re-formats the certificate date (Date.toString()) string to
3250      * a properly localized date string.
3251      * @return Properly localized version of the certificate date string and
3252      * the original certificate date string if fails to localize.
3253      * If the original string is null, returns an empty string "".
3254      */
3255     private String reformatCertificateDate(String certificateDate) {
3256       String reformattedDate = null;
3257
3258       if (certificateDate != null) {
3259           Date date = null;
3260           try {
3261               date = java.text.DateFormat.getInstance().parse(certificateDate);
3262           } catch (ParseException e) {
3263               date = null;
3264           }
3265
3266           if (date != null) {
3267               reformattedDate =
3268                   DateFormat.getDateFormat(this).format(date);
3269           }
3270       }
3271
3272       return reformattedDate != null ? reformattedDate :
3273           (certificateDate != null ? certificateDate : "");
3274     }
3275
3276     /**
3277      * Displays an http-authentication dialog.
3278      */
3279     void showHttpAuthentication(final HttpAuthHandler handler,
3280             final String host, final String realm, final String title,
3281             final String name, final String password, int focusId) {
3282         LayoutInflater factory = LayoutInflater.from(this);
3283         final View v = factory
3284                 .inflate(R.layout.http_authentication, null);
3285         if (name != null) {
3286             ((EditText) v.findViewById(R.id.username_edit)).setText(name);
3287         }
3288         if (password != null) {
3289             ((EditText) v.findViewById(R.id.password_edit)).setText(password);
3290         }
3291
3292         String titleText = title;
3293         if (titleText == null) {
3294             titleText = getText(R.string.sign_in_to).toString().replace(
3295                     "%s1", host).replace("%s2", realm);
3296         }
3297
3298         mHttpAuthHandler = handler;
3299         AlertDialog dialog = new AlertDialog.Builder(this)
3300                 .setTitle(titleText)
3301                 .setIcon(android.R.drawable.ic_dialog_alert)
3302                 .setView(v)
3303                 .setPositiveButton(R.string.action,
3304                         new DialogInterface.OnClickListener() {
3305                              public void onClick(DialogInterface dialog,
3306                                      int whichButton) {
3307                                 String nm = ((EditText) v
3308                                         .findViewById(R.id.username_edit))
3309                                         .getText().toString();
3310                                 String pw = ((EditText) v
3311                                         .findViewById(R.id.password_edit))
3312                                         .getText().toString();
3313                                 BrowserActivity.this.setHttpAuthUsernamePassword
3314                                         (host, realm, nm, pw);
3315                                 handler.proceed(nm, pw);
3316                                 mHttpAuthenticationDialog = null;
3317                                 mHttpAuthHandler = null;
3318                             }})
3319                 .setNegativeButton(R.string.cancel,
3320                         new DialogInterface.OnClickListener() {
3321                             public void onClick(DialogInterface dialog,
3322                                     int whichButton) {
3323                                 handler.cancel();
3324                                 BrowserActivity.this.resetTitleAndRevertLockIcon();
3325                                 mHttpAuthenticationDialog = null;
3326                                 mHttpAuthHandler = null;
3327                             }})
3328                 .setOnCancelListener(new DialogInterface.OnCancelListener() {
3329                         public void onCancel(DialogInterface dialog) {
3330                             handler.cancel();
3331                             BrowserActivity.this.resetTitleAndRevertLockIcon();
3332                             mHttpAuthenticationDialog = null;
3333                             mHttpAuthHandler = null;
3334                         }})
3335                 .create();
3336         // Make the IME appear when the dialog is displayed if applicable.
3337         dialog.getWindow().setSoftInputMode(
3338                 WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
3339         dialog.show();
3340         if (focusId != 0) {
3341             dialog.findViewById(focusId).requestFocus();
3342         } else {
3343             v.findViewById(R.id.username_edit).requestFocus();
3344         }
3345         mHttpAuthenticationDialog = dialog;
3346     }
3347
3348     public int getProgress() {
3349         WebView w = mTabControl.getCurrentWebView();
3350         if (w != null) {
3351             return w.getProgress();
3352         } else {
3353             return 100;
3354         }
3355     }
3356
3357     /**
3358      * Set HTTP authentication password.
3359      *
3360      * @param host The host for the password
3361      * @param realm The realm for the password
3362      * @param username The username for the password. If it is null, it means
3363      *            password can't be saved.
3364      * @param password The password
3365      */
3366     public void setHttpAuthUsernamePassword(String host, String realm,
3367                                             String username,
3368                                             String password) {
3369         WebView w = mTabControl.getCurrentWebView();
3370         if (w != null) {
3371             w.setHttpAuthUsernamePassword(host, realm, username, password);
3372         }
3373     }
3374
3375     /**
3376      * connectivity manager says net has come or gone... inform the user
3377      * @param up true if net has come up, false if net has gone down
3378      */
3379     public void onNetworkToggle(boolean up) {
3380         if (up == mIsNetworkUp) {
3381             return;
3382         } else if (up) {
3383             mIsNetworkUp = true;
3384             if (mAlertDialog != null) {
3385                 mAlertDialog.cancel();
3386                 mAlertDialog = null;
3387             }
3388         } else {
3389             mIsNetworkUp = false;
3390             if (mInLoad) {
3391                 createAndShowNetworkDialog();
3392            }
3393         }
3394         WebView w = mTabControl.getCurrentWebView();
3395         if (w != null) {
3396             w.setNetworkAvailable(up);
3397         }
3398     }
3399
3400     boolean isNetworkUp() {
3401         return mIsNetworkUp;
3402     }
3403
3404     // This method shows the network dialog alerting the user that the net is
3405     // down. It will only show the dialog if mAlertDialog is null.
3406     private void createAndShowNetworkDialog() {
3407         if (mAlertDialog == null) {
3408             mAlertDialog = new AlertDialog.Builder(this)
3409                     .setTitle(R.string.loadSuspendedTitle)
3410                     .setMessage(R.string.loadSuspended)
3411                     .setPositiveButton(R.string.ok, null)
3412                     .show();
3413         }
3414     }
3415
3416     @Override
3417     protected void onActivityResult(int requestCode, int resultCode,
3418                                     Intent intent) {
3419         if (getTopWindow() == null) return;
3420
3421         switch (requestCode) {
3422             case COMBO_PAGE:
3423                 if (resultCode == RESULT_OK && intent != null) {
3424                     String data = intent.getAction();
3425                     Bundle extras = intent.getExtras();
3426                     if (extras != null && extras.getBoolean("new_window", false)) {
3427                         openTab(data);
3428                     } else {
3429                         final Tab currentTab =
3430                                 mTabControl.getCurrentTab();
3431                         dismissSubWindow(currentTab);
3432                         if (data != null && data.length() != 0) {
3433                             getTopWindow().loadUrl(data);
3434                         }
3435                     }
3436                 }
3437                 break;
3438             // Choose a file from the file picker.
3439             case FILE_SELECTED:
3440                 if (null == mUploadMessage) break;
3441                 Uri result = intent == null || resultCode != RESULT_OK ? null
3442                         : intent.getData();
3443                 mUploadMessage.onReceiveValue(result);
3444                 mUploadMessage = null;
3445                 break;
3446             default:
3447                 break;
3448         }
3449         getTopWindow().requestFocus();
3450     }
3451
3452     /*
3453      * This method is called as a result of the user selecting the options
3454      * menu to see the download window, or when a download changes state. It
3455      * shows the download window ontop of the current window.
3456      */
3457     /* package */ void viewDownloads(Uri downloadRecord) {
3458         Intent intent = new Intent(this,
3459                 BrowserDownloadPage.class);
3460         intent.setData(downloadRecord);
3461         startActivityForResult(intent, BrowserActivity.DOWNLOAD_PAGE);
3462
3463     }
3464
3465     /**
3466      * Open the Go page.
3467      * @param startWithHistory If true, open starting on the history tab.
3468      *                         Otherwise, start with the bookmarks tab.
3469      */
3470     /* package */ void bookmarksOrHistoryPicker(boolean startWithHistory) {
3471         WebView current = mTabControl.getCurrentWebView();
3472         if (current == null) {
3473             return;
3474         }
3475         Intent intent = new Intent(this,
3476                 CombinedBookmarkHistoryActivity.class);
3477         String title = current.getTitle();
3478         String url = current.getUrl();
3479         Bitmap thumbnail = createScreenshot(current);
3480
3481         // Just in case the user opens bookmarks before a page finishes loading
3482         // so the current history item, and therefore the page, is null.
3483         if (null == url) {
3484             url = mLastEnteredUrl;
3485             // This can happen.
3486             if (null == url) {
3487                 url = mSettings.getHomePage();
3488             }
3489         }
3490         // In case the web page has not yet received its associated title.
3491         if (title == null) {
3492             title = url;
3493         }
3494         intent.putExtra("title", title);
3495         intent.putExtra("url", url);
3496         intent.putExtra("thumbnail", thumbnail);
3497         // Disable opening in a new window if we have maxed out the windows
3498         intent.putExtra("disable_new_window", !mTabControl.canCreateNewTab());
3499         intent.putExtra("touch_icon_url", current.getTouchIconUrl());
3500         if (startWithHistory) {
3501             intent.putExtra(CombinedBookmarkHistoryActivity.STARTING_TAB,
3502                     CombinedBookmarkHistoryActivity.HISTORY_TAB);
3503         }
3504         startActivityForResult(intent, COMBO_PAGE);
3505     }
3506
3507     // Called when loading from context menu or LOAD_URL message
3508     private void loadURL(WebView view, String url) {
3509         // In case the user enters nothing.
3510         if (url != null && url.length() != 0 && view != null) {
3511             url = smartUrlFilter(url);
3512             if (!view.getWebViewClient().shouldOverrideUrlLoading(view, url)) {
3513                 view.loadUrl(url);
3514             }
3515         }
3516     }
3517
3518     private String smartUrlFilter(Uri inUri) {
3519         if (inUri != null) {
3520             return smartUrlFilter(inUri.toString());
3521         }
3522         return null;
3523     }
3524
3525     protected static final Pattern ACCEPTED_URI_SCHEMA = Pattern.compile(
3526             "(?i)" + // switch on case insensitive matching
3527             "(" +    // begin group for schema
3528             "(?:http|https|file):\\/\\/" +
3529             "|(?:inline|data|about|content|javascript):" +
3530             ")" +
3531             "(.*)" );
3532
3533     /**
3534      * Attempts to determine whether user input is a URL or search
3535      * terms.  Anything with a space is passed to search.
3536      *
3537      * Converts to lowercase any mistakenly uppercased schema (i.e.,
3538      * "Http://" converts to "http://"
3539      *
3540      * @return Original or modified URL
3541      *
3542      */
3543     String smartUrlFilter(String url) {
3544
3545         String inUrl = url.trim();
3546         boolean hasSpace = inUrl.indexOf(' ') != -1;
3547
3548         Matcher matcher = ACCEPTED_URI_SCHEMA.matcher(inUrl);
3549         if (matcher.matches()) {
3550             // force scheme to lowercase
3551             String scheme = matcher.group(1);
3552             String lcScheme = scheme.toLowerCase();
3553             if (!lcScheme.equals(scheme)) {
3554                 inUrl = lcScheme + matcher.group(2);
3555             }
3556             if (hasSpace) {
3557                 inUrl = inUrl.replace(" ", "%20");
3558             }
3559             return inUrl;
3560         }
3561         if (hasSpace) {
3562             // FIXME: Is this the correct place to add to searches?
3563             // what if someone else calls this function?
3564             int shortcut = parseUrlShortcut(inUrl);
3565             if (shortcut != SHORTCUT_INVALID) {
3566                 Browser.addSearchUrl(mResolver, inUrl);
3567                 String query = inUrl.substring(2);
3568                 switch (shortcut) {
3569                 case SHORTCUT_GOOGLE_SEARCH:
3570                     return URLUtil.composeSearchUrl(query, QuickSearch_G, QUERY_PLACE_HOLDER);
3571                 case SHORTCUT_WIKIPEDIA_SEARCH:
3572                     return URLUtil.composeSearchUrl(query, QuickSearch_W, QUERY_PLACE_HOLDER);
3573                 case SHORTCUT_DICTIONARY_SEARCH:
3574                     return URLUtil.composeSearchUrl(query, QuickSearch_D, QUERY_PLACE_HOLDER);
3575                 case SHORTCUT_GOOGLE_MOBILE_LOCAL_SEARCH:
3576                     // FIXME: we need location in this case
3577                     return URLUtil.composeSearchUrl(query, QuickSearch_L, QUERY_PLACE_HOLDER);
3578                 }
3579             }
3580         } else {
3581             if (Patterns.WEB_URL.matcher(inUrl).matches()) {
3582                 return URLUtil.guessUrl(inUrl);
3583             }
3584         }
3585
3586         Browser.addSearchUrl(mResolver, inUrl);
3587         return URLUtil.composeSearchUrl(inUrl, QuickSearch_G, QUERY_PLACE_HOLDER);
3588     }
3589
3590     /* package */ void setShouldShowErrorConsole(boolean flag) {
3591         if (flag == mShouldShowErrorConsole) {
3592             // Nothing to do.
3593             return;
3594         }
3595
3596         mShouldShowErrorConsole = flag;
3597
3598         ErrorConsoleView errorConsole = mTabControl.getCurrentTab()
3599                 .getErrorConsole(true);
3600
3601         if (flag) {
3602             // Setting the show state of the console will cause it's the layout to be inflated.
3603             if (errorConsole.numberOfErrors() > 0) {
3604                 errorConsole.showConsole(ErrorConsoleView.SHOW_MINIMIZED);
3605             } else {
3606                 errorConsole.showConsole(ErrorConsoleView.SHOW_NONE);
3607             }
3608
3609             // Now we can add it to the main view.
3610             mErrorConsoleContainer.addView(errorConsole,
3611                     new LinearLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT,
3612                                                   ViewGroup.LayoutParams.WRAP_CONTENT));
3613         } else {
3614             mErrorConsoleContainer.removeView(errorConsole);
3615         }
3616
3617     }
3618
3619     boolean shouldShowErrorConsole() {
3620         return mShouldShowErrorConsole;
3621     }
3622
3623     private void setStatusBarVisibility(boolean visible) {
3624         int flag = visible ? 0 : WindowManager.LayoutParams.FLAG_FULLSCREEN;
3625         getWindow().setFlags(flag, WindowManager.LayoutParams.FLAG_FULLSCREEN);
3626     }
3627
3628     final static int LOCK_ICON_UNSECURE = 0;
3629     final static int LOCK_ICON_SECURE   = 1;
3630     final static int LOCK_ICON_MIXED    = 2;
3631
3632     private BrowserSettings mSettings;
3633     private TabControl      mTabControl;
3634     private ContentResolver mResolver;
3635     private FrameLayout     mContentView;
3636     private View            mCustomView;
3637     private FrameLayout     mCustomViewContainer;
3638     private WebChromeClient.CustomViewCallback mCustomViewCallback;
3639
3640     // FIXME, temp address onPrepareMenu performance problem. When we move everything out of
3641     // view, we should rewrite this.
3642     private int mCurrentMenuState = 0;
3643     private int mMenuState = R.id.MAIN_MENU;
3644     private int mOldMenuState = EMPTY_MENU;
3645     private static final int EMPTY_MENU = -1;
3646     private Menu mMenu;
3647
3648     private FindDialog mFindDialog;
3649     // Used to prevent chording to result in firing two shortcuts immediately
3650     // one after another.  Fixes bug 1211714.
3651     boolean mCanChord;
3652
3653     private boolean mInLoad;
3654     private boolean mIsNetworkUp;
3655     private boolean mDidStopLoad;
3656
3657     private boolean mActivityInPause = true;
3658
3659     private boolean mMenuIsDown;
3660
3661     private static boolean mInTrace;
3662
3663     // Performance probe
3664     private static final int[] SYSTEM_CPU_FORMAT = new int[] {
3665             Process.PROC_SPACE_TERM | Process.PROC_COMBINE,
3666             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 1: user time
3667             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 2: nice time
3668             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 3: sys time
3669             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 4: idle time
3670             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 5: iowait time
3671             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 6: irq time
3672             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG  // 7: softirq time
3673     };
3674
3675     private long mStart;
3676     private long mProcessStart;
3677     private long mUserStart;
3678     private long mSystemStart;
3679     private long mIdleStart;
3680     private long mIrqStart;
3681
3682     private long mUiStart;
3683
3684     private Drawable    mMixLockIcon;
3685     private Drawable    mSecLockIcon;
3686
3687     /* hold a ref so we can auto-cancel if necessary */
3688     private AlertDialog mAlertDialog;
3689
3690     // Wait for credentials before loading google.com
3691     private ProgressDialog mCredsDlg;
3692
3693     // The up-to-date URL and title (these can be different from those stored
3694     // in WebView, since it takes some time for the information in WebView to
3695     // get updated)
3696     private String mUrl;
3697     private String mTitle;
3698
3699     // As PageInfo has different style for landscape / portrait, we have
3700     // to re-open it when configuration changed
3701     private AlertDialog mPageInfoDialog;
3702     private Tab mPageInfoView;
3703     // If the Page-Info dialog is launched from the SSL-certificate-on-error
3704     // dialog, we should not just dismiss it, but should get back to the
3705     // SSL-certificate-on-error dialog. This flag is used to store this state
3706     private Boolean mPageInfoFromShowSSLCertificateOnError;
3707
3708     // as SSLCertificateOnError has different style for landscape / portrait,
3709     // we have to re-open it when configuration changed
3710     private AlertDialog mSSLCertificateOnErrorDialog;
3711     private WebView mSSLCertificateOnErrorView;
3712     private SslErrorHandler mSSLCertificateOnErrorHandler;
3713     private SslError mSSLCertificateOnErrorError;
3714
3715     // as SSLCertificate has different style for landscape / portrait, we
3716     // have to re-open it when configuration changed
3717     private AlertDialog mSSLCertificateDialog;
3718     private Tab mSSLCertificateView;
3719
3720     // as HttpAuthentication has different style for landscape / portrait, we
3721     // have to re-open it when configuration changed
3722     private AlertDialog mHttpAuthenticationDialog;
3723     private HttpAuthHandler mHttpAuthHandler;
3724
3725     /*package*/ static final FrameLayout.LayoutParams COVER_SCREEN_PARAMS =
3726                                             new FrameLayout.LayoutParams(
3727                                             ViewGroup.LayoutParams.FILL_PARENT,
3728                                             ViewGroup.LayoutParams.FILL_PARENT);
3729     /*package*/ static final FrameLayout.LayoutParams COVER_SCREEN_GRAVITY_CENTER =
3730                                             new FrameLayout.LayoutParams(
3731                                             ViewGroup.LayoutParams.FILL_PARENT,
3732                                             ViewGroup.LayoutParams.FILL_PARENT,
3733                                             Gravity.CENTER);
3734     // Google search
3735     final static String QuickSearch_G = "http://www.google.com/m?q=%s";
3736     // Wikipedia search
3737     final static String QuickSearch_W = "http://en.wikipedia.org/w/index.php?search=%s&go=Go";
3738     // Dictionary search
3739     final static String QuickSearch_D = "http://dictionary.reference.com/search?q=%s";
3740     // Google Mobile Local search
3741     final static String QuickSearch_L = "http://www.google.com/m/search?site=local&q=%s&near=mountain+view";
3742
3743     final static String QUERY_PLACE_HOLDER = "%s";
3744
3745     // "source" parameter for Google search through search key
3746     final static String GOOGLE_SEARCH_SOURCE_SEARCHKEY = "browser-key";
3747     // "source" parameter for Google search through goto menu
3748     final static String GOOGLE_SEARCH_SOURCE_GOTO = "browser-goto";
3749     // "source" parameter for Google search through simplily type
3750     final static String GOOGLE_SEARCH_SOURCE_TYPE = "browser-type";
3751     // "source" parameter for Google search suggested by the browser
3752     final static String GOOGLE_SEARCH_SOURCE_SUGGEST = "browser-suggest";
3753     // "source" parameter for Google search from unknown source
3754     final static String GOOGLE_SEARCH_SOURCE_UNKNOWN = "unknown";
3755
3756     private final static String LOGTAG = "browser";
3757
3758     private String mLastEnteredUrl;
3759
3760     private PowerManager.WakeLock mWakeLock;
3761     private final static int WAKELOCK_TIMEOUT = 5 * 60 * 1000; // 5 minutes
3762
3763     private Toast mStopToast;
3764
3765     private TitleBar mTitleBar;
3766
3767     private LinearLayout mErrorConsoleContainer = null;
3768     private boolean mShouldShowErrorConsole = false;
3769
3770     // As the ids are dynamically created, we can't guarantee that they will
3771     // be in sequence, so this static array maps ids to a window number.
3772     final static private int[] WINDOW_SHORTCUT_ID_ARRAY =
3773     { R.id.window_one_menu_id, R.id.window_two_menu_id, R.id.window_three_menu_id,
3774       R.id.window_four_menu_id, R.id.window_five_menu_id, R.id.window_six_menu_id,
3775       R.id.window_seven_menu_id, R.id.window_eight_menu_id };
3776
3777     // monitor platform changes
3778     private IntentFilter mNetworkStateChangedFilter;
3779     private BroadcastReceiver mNetworkStateIntentReceiver;
3780
3781     private BroadcastReceiver mPackageInstallationReceiver;
3782
3783     // activity requestCode
3784     final static int COMBO_PAGE                 = 1;
3785     final static int DOWNLOAD_PAGE              = 2;
3786     final static int PREFERENCES_PAGE           = 3;
3787     final static int FILE_SELECTED              = 4;
3788
3789     // the default <video> poster
3790     private Bitmap mDefaultVideoPoster;
3791     // the video progress view
3792     private View mVideoProgressView;
3793
3794     /**
3795      * A UrlData class to abstract how the content will be set to WebView.
3796      * This base class uses loadUrl to show the content.
3797      */
3798     private static class UrlData {
3799         String mUrl;
3800         byte[] mPostData;
3801
3802         UrlData(String url) {
3803             this.mUrl = url;
3804         }
3805
3806         void setPostData(byte[] postData) {
3807             mPostData = postData;
3808         }
3809
3810         boolean isEmpty() {
3811             return mUrl == null || mUrl.length() == 0;
3812         }
3813
3814         public void loadIn(WebView webView) {
3815             if (mPostData != null) {
3816                 webView.postUrl(mUrl, mPostData);
3817             } else {
3818                 webView.loadUrl(mUrl);
3819             }
3820         }
3821     };
3822
3823     /**
3824      * A subclass of UrlData class that can display inlined content using
3825      * {@link WebView#loadDataWithBaseURL(String, String, String, String, String)}.
3826      */
3827     private static class InlinedUrlData extends UrlData {
3828         InlinedUrlData(String inlined, String mimeType, String encoding, String failUrl) {
3829             super(failUrl);
3830             mInlined = inlined;
3831             mMimeType = mimeType;
3832             mEncoding = encoding;
3833         }
3834         String mMimeType;
3835         String mInlined;
3836         String mEncoding;
3837         @Override
3838         boolean isEmpty() {
3839             return mInlined == null || mInlined.length() == 0 || super.isEmpty();
3840         }
3841
3842         @Override
3843         public void loadIn(WebView webView) {
3844             webView.loadDataWithBaseURL(null, mInlined, mMimeType, mEncoding, mUrl);
3845         }
3846     }
3847
3848     /* package */ static final UrlData EMPTY_URL_DATA = new UrlData(null);
3849 }