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                 startActivityForResult(intent, PREFERENCES_PAGE);
1450                 break;
1451
1452             case R.id.find_menu_id:
1453                 if (null == mFindDialog) {
1454                     mFindDialog = new FindDialog(this);
1455                 }
1456                 mFindDialog.setWebView(getTopWindow());
1457                 mFindDialog.show();
1458                 mMenuState = EMPTY_MENU;
1459                 break;
1460
1461             case R.id.select_text_id:
1462                 getTopWindow().emulateShiftHeld();
1463                 break;
1464             case R.id.page_info_menu_id:
1465                 showPageInfo(mTabControl.getCurrentTab(), false);
1466                 break;
1467
1468             case R.id.classic_history_menu_id:
1469                 bookmarksOrHistoryPicker(true);
1470                 break;
1471
1472             case R.id.share_page_menu_id:
1473                 Browser.sendString(this, getTopWindow().getUrl(),
1474                         getText(R.string.choosertitle_sharevia).toString());
1475                 break;
1476
1477             case R.id.dump_nav_menu_id:
1478                 getTopWindow().debugDump();
1479                 break;
1480
1481             case R.id.zoom_in_menu_id:
1482                 getTopWindow().zoomIn();
1483                 break;
1484
1485             case R.id.zoom_out_menu_id:
1486                 getTopWindow().zoomOut();
1487                 break;
1488
1489             case R.id.view_downloads_menu_id:
1490                 viewDownloads(null);
1491                 break;
1492
1493             case R.id.window_one_menu_id:
1494             case R.id.window_two_menu_id:
1495             case R.id.window_three_menu_id:
1496             case R.id.window_four_menu_id:
1497             case R.id.window_five_menu_id:
1498             case R.id.window_six_menu_id:
1499             case R.id.window_seven_menu_id:
1500             case R.id.window_eight_menu_id:
1501                 {
1502                     int menuid = item.getItemId();
1503                     for (int id = 0; id < WINDOW_SHORTCUT_ID_ARRAY.length; id++) {
1504                         if (WINDOW_SHORTCUT_ID_ARRAY[id] == menuid) {
1505                             Tab desiredTab = mTabControl.getTab(id);
1506                             if (desiredTab != null &&
1507                                     desiredTab != mTabControl.getCurrentTab()) {
1508                                 switchToTab(id);
1509                             }
1510                             break;
1511                         }
1512                     }
1513                 }
1514                 break;
1515
1516             default:
1517                 if (!super.onOptionsItemSelected(item)) {
1518                     return false;
1519                 }
1520                 // Otherwise fall through.
1521         }
1522         mCanChord = false;
1523         return true;
1524     }
1525
1526     public void closeFind() {
1527         mMenuState = R.id.MAIN_MENU;
1528     }
1529
1530     @Override
1531     public boolean onPrepareOptionsMenu(Menu menu) {
1532         // This happens when the user begins to hold down the menu key, so
1533         // allow them to chord to get a shortcut.
1534         mCanChord = true;
1535         // Note: setVisible will decide whether an item is visible; while
1536         // setEnabled() will decide whether an item is enabled, which also means
1537         // whether the matching shortcut key will function.
1538         super.onPrepareOptionsMenu(menu);
1539         switch (mMenuState) {
1540             case EMPTY_MENU:
1541                 if (mCurrentMenuState != mMenuState) {
1542                     menu.setGroupVisible(R.id.MAIN_MENU, false);
1543                     menu.setGroupEnabled(R.id.MAIN_MENU, false);
1544                     menu.setGroupEnabled(R.id.MAIN_SHORTCUT_MENU, false);
1545                 }
1546                 break;
1547             default:
1548                 if (mCurrentMenuState != mMenuState) {
1549                     menu.setGroupVisible(R.id.MAIN_MENU, true);
1550                     menu.setGroupEnabled(R.id.MAIN_MENU, true);
1551                     menu.setGroupEnabled(R.id.MAIN_SHORTCUT_MENU, true);
1552                 }
1553                 final WebView w = getTopWindow();
1554                 boolean canGoBack = false;
1555                 boolean canGoForward = false;
1556                 boolean isHome = false;
1557                 if (w != null) {
1558                     canGoBack = w.canGoBack();
1559                     canGoForward = w.canGoForward();
1560                     isHome = mSettings.getHomePage().equals(w.getUrl());
1561                 }
1562                 final MenuItem back = menu.findItem(R.id.back_menu_id);
1563                 back.setEnabled(canGoBack);
1564
1565                 final MenuItem home = menu.findItem(R.id.homepage_menu_id);
1566                 home.setEnabled(!isHome);
1567
1568                 menu.findItem(R.id.forward_menu_id)
1569                         .setEnabled(canGoForward);
1570
1571                 menu.findItem(R.id.new_tab_menu_id).setEnabled(
1572                         mTabControl.canCreateNewTab());
1573
1574                 // decide whether to show the share link option
1575                 PackageManager pm = getPackageManager();
1576                 Intent send = new Intent(Intent.ACTION_SEND);
1577                 send.setType("text/plain");
1578                 ResolveInfo ri = pm.resolveActivity(send, PackageManager.MATCH_DEFAULT_ONLY);
1579                 menu.findItem(R.id.share_page_menu_id).setVisible(ri != null);
1580
1581                 boolean isNavDump = mSettings.isNavDump();
1582                 final MenuItem nav = menu.findItem(R.id.dump_nav_menu_id);
1583                 nav.setVisible(isNavDump);
1584                 nav.setEnabled(isNavDump);
1585                 break;
1586         }
1587         mCurrentMenuState = mMenuState;
1588         return true;
1589     }
1590
1591     @Override
1592     public void onCreateContextMenu(ContextMenu menu, View v,
1593             ContextMenuInfo menuInfo) {
1594         WebView webview = (WebView) v;
1595         WebView.HitTestResult result = webview.getHitTestResult();
1596         if (result == null) {
1597             return;
1598         }
1599
1600         int type = result.getType();
1601         if (type == WebView.HitTestResult.UNKNOWN_TYPE) {
1602             Log.w(LOGTAG,
1603                     "We should not show context menu when nothing is touched");
1604             return;
1605         }
1606         if (type == WebView.HitTestResult.EDIT_TEXT_TYPE) {
1607             // let TextView handles context menu
1608             return;
1609         }
1610
1611         // Note, http://b/issue?id=1106666 is requesting that
1612         // an inflated menu can be used again. This is not available
1613         // yet, so inflate each time (yuk!)
1614         MenuInflater inflater = getMenuInflater();
1615         inflater.inflate(R.menu.browsercontext, menu);
1616
1617         // Show the correct menu group
1618         String extra = result.getExtra();
1619         menu.setGroupVisible(R.id.PHONE_MENU,
1620                 type == WebView.HitTestResult.PHONE_TYPE);
1621         menu.setGroupVisible(R.id.EMAIL_MENU,
1622                 type == WebView.HitTestResult.EMAIL_TYPE);
1623         menu.setGroupVisible(R.id.GEO_MENU,
1624                 type == WebView.HitTestResult.GEO_TYPE);
1625         menu.setGroupVisible(R.id.IMAGE_MENU,
1626                 type == WebView.HitTestResult.IMAGE_TYPE
1627                 || type == WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE);
1628         menu.setGroupVisible(R.id.ANCHOR_MENU,
1629                 type == WebView.HitTestResult.SRC_ANCHOR_TYPE
1630                 || type == WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE);
1631
1632         // Setup custom handling depending on the type
1633         switch (type) {
1634             case WebView.HitTestResult.PHONE_TYPE:
1635                 menu.setHeaderTitle(Uri.decode(extra));
1636                 menu.findItem(R.id.dial_context_menu_id).setIntent(
1637                         new Intent(Intent.ACTION_VIEW, Uri
1638                                 .parse(WebView.SCHEME_TEL + extra)));
1639                 Intent addIntent = new Intent(Intent.ACTION_INSERT_OR_EDIT);
1640                 addIntent.putExtra(Insert.PHONE, Uri.decode(extra));
1641                 addIntent.setType(ContactsContract.Contacts.CONTENT_ITEM_TYPE);
1642                 menu.findItem(R.id.add_contact_context_menu_id).setIntent(
1643                         addIntent);
1644                 menu.findItem(R.id.copy_phone_context_menu_id).setOnMenuItemClickListener(
1645                         new Copy(extra));
1646                 break;
1647
1648             case WebView.HitTestResult.EMAIL_TYPE:
1649                 menu.setHeaderTitle(extra);
1650                 menu.findItem(R.id.email_context_menu_id).setIntent(
1651                         new Intent(Intent.ACTION_VIEW, Uri
1652                                 .parse(WebView.SCHEME_MAILTO + extra)));
1653                 menu.findItem(R.id.copy_mail_context_menu_id).setOnMenuItemClickListener(
1654                         new Copy(extra));
1655                 break;
1656
1657             case WebView.HitTestResult.GEO_TYPE:
1658                 menu.setHeaderTitle(extra);
1659                 menu.findItem(R.id.map_context_menu_id).setIntent(
1660                         new Intent(Intent.ACTION_VIEW, Uri
1661                                 .parse(WebView.SCHEME_GEO
1662                                         + URLEncoder.encode(extra))));
1663                 menu.findItem(R.id.copy_geo_context_menu_id).setOnMenuItemClickListener(
1664                         new Copy(extra));
1665                 break;
1666
1667             case WebView.HitTestResult.SRC_ANCHOR_TYPE:
1668             case WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE:
1669                 TextView titleView = (TextView) LayoutInflater.from(this)
1670                         .inflate(android.R.layout.browser_link_context_header,
1671                         null);
1672                 titleView.setText(extra);
1673                 menu.setHeaderView(titleView);
1674                 // decide whether to show the open link in new tab option
1675                 menu.findItem(R.id.open_newtab_context_menu_id).setVisible(
1676                         mTabControl.canCreateNewTab());
1677                 menu.findItem(R.id.bookmark_context_menu_id).setVisible(
1678                         Bookmarks.urlHasAcceptableScheme(extra));
1679                 PackageManager pm = getPackageManager();
1680                 Intent send = new Intent(Intent.ACTION_SEND);
1681                 send.setType("text/plain");
1682                 ResolveInfo ri = pm.resolveActivity(send, PackageManager.MATCH_DEFAULT_ONLY);
1683                 menu.findItem(R.id.share_link_context_menu_id).setVisible(ri != null);
1684                 if (type == WebView.HitTestResult.SRC_ANCHOR_TYPE) {
1685                     break;
1686                 }
1687                 // otherwise fall through to handle image part
1688             case WebView.HitTestResult.IMAGE_TYPE:
1689                 if (type == WebView.HitTestResult.IMAGE_TYPE) {
1690                     menu.setHeaderTitle(extra);
1691                 }
1692                 menu.findItem(R.id.view_image_context_menu_id).setIntent(
1693                         new Intent(Intent.ACTION_VIEW, Uri.parse(extra)));
1694                 menu.findItem(R.id.download_context_menu_id).
1695                         setOnMenuItemClickListener(new Download(extra));
1696                 menu.findItem(R.id.set_wallpaper_context_menu_id).
1697                         setOnMenuItemClickListener(new SetAsWallpaper(extra));
1698                 break;
1699
1700             default:
1701                 Log.w(LOGTAG, "We should not get here.");
1702                 break;
1703         }
1704         hideFakeTitleBar();
1705     }
1706
1707     // Attach the given tab to the content view.
1708     // this should only be called for the current tab.
1709     private void attachTabToContentView(Tab t) {
1710         // Attach the container that contains the main WebView and any other UI
1711         // associated with the tab.
1712         t.attachTabToContentView(mContentView);
1713
1714         if (mShouldShowErrorConsole) {
1715             ErrorConsoleView errorConsole = t.getErrorConsole(true);
1716             if (errorConsole.numberOfErrors() == 0) {
1717                 errorConsole.showConsole(ErrorConsoleView.SHOW_NONE);
1718             } else {
1719                 errorConsole.showConsole(ErrorConsoleView.SHOW_MINIMIZED);
1720             }
1721
1722             mErrorConsoleContainer.addView(errorConsole,
1723                     new LinearLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT,
1724                                                   ViewGroup.LayoutParams.WRAP_CONTENT));
1725         }
1726
1727         WebView view = t.getWebView();
1728         view.setEmbeddedTitleBar(mTitleBar);
1729         // Request focus on the top window.
1730         t.getTopWindow().requestFocus();
1731     }
1732
1733     // Attach a sub window to the main WebView of the given tab.
1734     void attachSubWindow(Tab t) {
1735         t.attachSubWindow(mContentView);
1736         getTopWindow().requestFocus();
1737     }
1738
1739     // Remove the given tab from the content view.
1740     private void removeTabFromContentView(Tab t) {
1741         // Remove the container that contains the main WebView.
1742         t.removeTabFromContentView(mContentView);
1743
1744         ErrorConsoleView errorConsole = t.getErrorConsole(false);
1745         if (errorConsole != null) {
1746             mErrorConsoleContainer.removeView(errorConsole);
1747         }
1748
1749         WebView view = t.getWebView();
1750         if (view != null) {
1751             view.setEmbeddedTitleBar(null);
1752         }
1753     }
1754
1755     // Remove the sub window if it exists. Also called by TabControl when the
1756     // user clicks the 'X' to dismiss a sub window.
1757     /* package */ void dismissSubWindow(Tab t) {
1758         t.removeSubWindow(mContentView);
1759         // dismiss the subwindow. This will destroy the WebView.
1760         t.dismissSubWindow();
1761         getTopWindow().requestFocus();
1762     }
1763
1764     // A wrapper function of {@link #openTabAndShow(UrlData, boolean, String)}
1765     // that accepts url as string.
1766     private Tab openTabAndShow(String url, boolean closeOnExit, String appId) {
1767         return openTabAndShow(new UrlData(url), closeOnExit, appId);
1768     }
1769
1770     // This method does a ton of stuff. It will attempt to create a new tab
1771     // if we haven't reached MAX_TABS. Otherwise it uses the current tab. If
1772     // url isn't null, it will load the given url.
1773     /* package */Tab openTabAndShow(UrlData urlData, boolean closeOnExit,
1774             String appId) {
1775         final Tab currentTab = mTabControl.getCurrentTab();
1776         if (mTabControl.canCreateNewTab()) {
1777             final Tab tab = mTabControl.createNewTab(closeOnExit, appId,
1778                     urlData.mUrl);
1779             WebView webview = tab.getWebView();
1780             // If the last tab was removed from the active tabs page, currentTab
1781             // will be null.
1782             if (currentTab != null) {
1783                 removeTabFromContentView(currentTab);
1784             }
1785             // We must set the new tab as the current tab to reflect the old
1786             // animation behavior.
1787             mTabControl.setCurrentTab(tab);
1788             attachTabToContentView(tab);
1789             if (!urlData.isEmpty()) {
1790                 urlData.loadIn(webview);
1791             }
1792             return tab;
1793         } else {
1794             // Get rid of the subwindow if it exists
1795             dismissSubWindow(currentTab);
1796             if (!urlData.isEmpty()) {
1797                 // Load the given url.
1798                 urlData.loadIn(currentTab.getWebView());
1799             }
1800         }
1801         return currentTab;
1802     }
1803
1804     private Tab openTab(String url) {
1805         if (mSettings.openInBackground()) {
1806             Tab t = mTabControl.createNewTab();
1807             if (t != null) {
1808                 WebView view = t.getWebView();
1809                 view.loadUrl(url);
1810             }
1811             return t;
1812         } else {
1813             return openTabAndShow(url, false, null);
1814         }
1815     }
1816
1817     private class Copy implements OnMenuItemClickListener {
1818         private CharSequence mText;
1819
1820         public boolean onMenuItemClick(MenuItem item) {
1821             copy(mText);
1822             return true;
1823         }
1824
1825         public Copy(CharSequence toCopy) {
1826             mText = toCopy;
1827         }
1828     }
1829
1830     private class Download implements OnMenuItemClickListener {
1831         private String mText;
1832
1833         public boolean onMenuItemClick(MenuItem item) {
1834             onDownloadStartNoStream(mText, null, null, null, -1);
1835             return true;
1836         }
1837
1838         public Download(String toDownload) {
1839             mText = toDownload;
1840         }
1841     }
1842
1843     private class SetAsWallpaper extends Thread implements
1844             OnMenuItemClickListener, DialogInterface.OnCancelListener {
1845         private URL mUrl;
1846         private ProgressDialog mWallpaperProgress;
1847         private boolean mCanceled = false;
1848
1849         public SetAsWallpaper(String url) {
1850             try {
1851                 mUrl = new URL(url);
1852             } catch (MalformedURLException e) {
1853                 mUrl = null;
1854             }
1855         }
1856
1857         public void onCancel(DialogInterface dialog) {
1858             mCanceled = true;
1859         }
1860
1861         public boolean onMenuItemClick(MenuItem item) {
1862             if (mUrl != null) {
1863                 // The user may have tried to set a image with a large file size as their
1864                 // background so it may take a few moments to perform the operation. Display
1865                 // a progress spinner while it is working.
1866                 mWallpaperProgress = new ProgressDialog(BrowserActivity.this);
1867                 mWallpaperProgress.setIndeterminate(true);
1868                 mWallpaperProgress.setMessage(getText(R.string.progress_dialog_setting_wallpaper));
1869                 mWallpaperProgress.setCancelable(true);
1870                 mWallpaperProgress.setOnCancelListener(this);
1871                 mWallpaperProgress.show();
1872                 start();
1873             }
1874             return true;
1875         }
1876
1877         public void run() {
1878             Drawable oldWallpaper = BrowserActivity.this.getWallpaper();
1879             try {
1880                 // TODO: This will cause the resource to be downloaded again, when we
1881                 // should in most cases be able to grab it from the cache. To fix this
1882                 // we should query WebCore to see if we can access a cached version and
1883                 // instead open an input stream on that. This pattern could also be used
1884                 // in the download manager where the same problem exists.
1885                 InputStream inputstream = mUrl.openStream();
1886                 if (inputstream != null) {
1887                     setWallpaper(inputstream);
1888                 }
1889             } catch (IOException e) {
1890                 Log.e(LOGTAG, "Unable to set new wallpaper");
1891                 // Act as though the user canceled the operation so we try to
1892                 // restore the old wallpaper.
1893                 mCanceled = true;
1894             }
1895
1896             if (mCanceled) {
1897                 // Restore the old wallpaper if the user cancelled whilst we were setting
1898                 // the new wallpaper.
1899                 int width = oldWallpaper.getIntrinsicWidth();
1900                 int height = oldWallpaper.getIntrinsicHeight();
1901                 Bitmap bm = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565);
1902                 Canvas canvas = new Canvas(bm);
1903                 oldWallpaper.setBounds(0, 0, width, height);
1904                 oldWallpaper.draw(canvas);
1905                 try {
1906                     setWallpaper(bm);
1907                 } catch (IOException e) {
1908                     Log.e(LOGTAG, "Unable to restore old wallpaper.");
1909                 }
1910                 mCanceled = false;
1911             }
1912
1913             if (mWallpaperProgress.isShowing()) {
1914                 mWallpaperProgress.dismiss();
1915             }
1916         }
1917     }
1918
1919     private void copy(CharSequence text) {
1920         try {
1921             IClipboard clip = IClipboard.Stub.asInterface(ServiceManager.getService("clipboard"));
1922             if (clip != null) {
1923                 clip.setClipboardText(text);
1924             }
1925         } catch (android.os.RemoteException e) {
1926             Log.e(LOGTAG, "Copy failed", e);
1927         }
1928     }
1929
1930     /**
1931      * Resets the browser title-view to whatever it must be
1932      * (for example, if we had a loading error)
1933      * When we have a new page, we call resetTitle, when we
1934      * have to reset the titlebar to whatever it used to be
1935      * (for example, if the user chose to stop loading), we
1936      * call resetTitleAndRevertLockIcon.
1937      */
1938     /* package */ void resetTitleAndRevertLockIcon() {
1939         mTabControl.getCurrentTab().revertLockIcon();
1940         updateLockIconToLatest();
1941         resetTitleIconAndProgress();
1942     }
1943
1944     /**
1945      * Reset the title, favicon, and progress.
1946      */
1947     private void resetTitleIconAndProgress() {
1948         WebView current = mTabControl.getCurrentWebView();
1949         if (current == null) {
1950             return;
1951         }
1952         resetTitleAndIcon(current);
1953         int progress = current.getProgress();
1954         current.getWebChromeClient().onProgressChanged(current, progress);
1955     }
1956
1957     // Reset the title and the icon based on the given item.
1958     private void resetTitleAndIcon(WebView view) {
1959         WebHistoryItem item = view.copyBackForwardList().getCurrentItem();
1960         if (item != null) {
1961             setUrlTitle(item.getUrl(), item.getTitle());
1962             setFavicon(item.getFavicon());
1963         } else {
1964             setUrlTitle(null, null);
1965             setFavicon(null);
1966         }
1967     }
1968
1969     /**
1970      * Sets a title composed of the URL and the title string.
1971      * @param url The URL of the site being loaded.
1972      * @param title The title of the site being loaded.
1973      */
1974     void setUrlTitle(String url, String title) {
1975         mUrl = url;
1976         mTitle = title;
1977
1978         mTitleBar.setTitleAndUrl(title, url);
1979         mFakeTitleBar.setTitleAndUrl(title, url);
1980     }
1981
1982     /**
1983      * @param url The URL to build a title version of the URL from.
1984      * @return The title version of the URL or null if fails.
1985      * The title version of the URL can be either the URL hostname,
1986      * or the hostname with an "https://" prefix (for secure URLs),
1987      * or an empty string if, for example, the URL in question is a
1988      * file:// URL with no hostname.
1989      */
1990     /* package */ static String buildTitleUrl(String url) {
1991         String titleUrl = null;
1992
1993         if (url != null) {
1994             try {
1995                 // parse the url string
1996                 URL urlObj = new URL(url);
1997                 if (urlObj != null) {
1998                     titleUrl = "";
1999
2000                     String protocol = urlObj.getProtocol();
2001                     String host = urlObj.getHost();
2002
2003                     if (host != null && 0 < host.length()) {
2004                         titleUrl = host;
2005                         if (protocol != null) {
2006                             // if a secure site, add an "https://" prefix!
2007                             if (protocol.equalsIgnoreCase("https")) {
2008                                 titleUrl = protocol + "://" + host;
2009                             }
2010                         }
2011                     }
2012                 }
2013             } catch (MalformedURLException e) {}
2014         }
2015
2016         return titleUrl;
2017     }
2018
2019     // Set the favicon in the title bar.
2020     void setFavicon(Bitmap icon) {
2021         mTitleBar.setFavicon(icon);
2022         mFakeTitleBar.setFavicon(icon);
2023     }
2024
2025     /**
2026      * Close the tab, remove its associated title bar, and adjust mTabControl's
2027      * current tab to a valid value.
2028      */
2029     /* package */ void closeTab(Tab t) {
2030         int currentIndex = mTabControl.getCurrentIndex();
2031         int removeIndex = mTabControl.getTabIndex(t);
2032         mTabControl.removeTab(t);
2033         if (currentIndex >= removeIndex && currentIndex != 0) {
2034             currentIndex--;
2035         }
2036         mTabControl.setCurrentTab(mTabControl.getTab(currentIndex));
2037         resetTitleIconAndProgress();
2038     }
2039
2040     private void goBackOnePageOrQuit() {
2041         Tab current = mTabControl.getCurrentTab();
2042         if (current == null) {
2043             /*
2044              * Instead of finishing the activity, simply push this to the back
2045              * of the stack and let ActivityManager to choose the foreground
2046              * activity. As BrowserActivity is singleTask, it will be always the
2047              * root of the task. So we can use either true or false for
2048              * moveTaskToBack().
2049              */
2050             moveTaskToBack(true);
2051             return;
2052         }
2053         WebView w = current.getWebView();
2054         if (w.canGoBack()) {
2055             w.goBack();
2056         } else {
2057             // Check to see if we are closing a window that was created by
2058             // another window. If so, we switch back to that window.
2059             Tab parent = current.getParentTab();
2060             if (parent != null) {
2061                 switchToTab(mTabControl.getTabIndex(parent));
2062                 // Now we close the other tab
2063                 closeTab(current);
2064             } else {
2065                 if (current.closeOnExit()) {
2066                     // force the tab's inLoad() to be false as we are going to
2067                     // either finish the activity or remove the tab. This will
2068                     // ensure pauseWebViewTimers() taking action.
2069                     mTabControl.getCurrentTab().clearInLoad();
2070                     if (mTabControl.getTabCount() == 1) {
2071                         finish();
2072                         return;
2073                     }
2074                     // call pauseWebViewTimers() now, we won't be able to call
2075                     // it in onPause() as the WebView won't be valid.
2076                     // Temporarily change mActivityInPause to be true as
2077                     // pauseWebViewTimers() will do nothing if mActivityInPause
2078                     // is false.
2079                     boolean savedState = mActivityInPause;
2080                     if (savedState) {
2081                         Log.e(LOGTAG, "BrowserActivity is already paused "
2082                                 + "while handing goBackOnePageOrQuit.");
2083                     }
2084                     mActivityInPause = true;
2085                     pauseWebViewTimers();
2086                     mActivityInPause = savedState;
2087                     removeTabFromContentView(current);
2088                     mTabControl.removeTab(current);
2089                 }
2090                 /*
2091                  * Instead of finishing the activity, simply push this to the back
2092                  * of the stack and let ActivityManager to choose the foreground
2093                  * activity. As BrowserActivity is singleTask, it will be always the
2094                  * root of the task. So we can use either true or false for
2095                  * moveTaskToBack().
2096                  */
2097                 moveTaskToBack(true);
2098             }
2099         }
2100     }
2101
2102     boolean isMenuDown() {
2103         return mMenuIsDown;
2104     }
2105
2106     @Override
2107     public boolean onKeyDown(int keyCode, KeyEvent event) {
2108         // Even if MENU is already held down, we need to call to super to open
2109         // the IME on long press.
2110         if (KeyEvent.KEYCODE_MENU == keyCode) {
2111             mMenuIsDown = true;
2112             return super.onKeyDown(keyCode, event);
2113         }
2114         // The default key mode is DEFAULT_KEYS_SEARCH_LOCAL. As the MENU is
2115         // still down, we don't want to trigger the search. Pretend to consume
2116         // the key and do nothing.
2117         if (mMenuIsDown) return true;
2118
2119         switch(keyCode) {
2120             case KeyEvent.KEYCODE_SPACE:
2121                 // WebView/WebTextView handle the keys in the KeyDown. As
2122                 // the Activity's shortcut keys are only handled when WebView
2123                 // doesn't, have to do it in onKeyDown instead of onKeyUp.
2124                 if (event.isShiftPressed()) {
2125                     getTopWindow().pageUp(false);
2126                 } else {
2127                     getTopWindow().pageDown(false);
2128                 }
2129                 return true;
2130             case KeyEvent.KEYCODE_BACK:
2131                 if (event.getRepeatCount() == 0) {
2132                     event.startTracking();
2133                     return true;
2134                 } else if (mCustomView == null && mActiveTabsPage == null
2135                         && event.isLongPress()) {
2136                     bookmarksOrHistoryPicker(true);
2137                     return true;
2138                 }
2139                 break;
2140         }
2141         return super.onKeyDown(keyCode, event);
2142     }
2143
2144     @Override
2145     public boolean onKeyUp(int keyCode, KeyEvent event) {
2146         switch(keyCode) {
2147             case KeyEvent.KEYCODE_MENU:
2148                 mMenuIsDown = false;
2149                 break;
2150             case KeyEvent.KEYCODE_BACK:
2151                 if (event.isTracking() && !event.isCanceled()) {
2152                     if (mCustomView != null) {
2153                         // if a custom view is showing, hide it
2154                         mTabControl.getCurrentWebView().getWebChromeClient()
2155                                 .onHideCustomView();
2156                     } else if (mActiveTabsPage != null) {
2157                         // if tab page is showing, hide it
2158                         removeActiveTabPage(true);
2159                     } else {
2160                         WebView subwindow = mTabControl.getCurrentSubWindow();
2161                         if (subwindow != null) {
2162                             if (subwindow.canGoBack()) {
2163                                 subwindow.goBack();
2164                             } else {
2165                                 dismissSubWindow(mTabControl.getCurrentTab());
2166                             }
2167                         } else {
2168                             goBackOnePageOrQuit();
2169                         }
2170                     }
2171                     return true;
2172                 }
2173                 break;
2174         }
2175         return super.onKeyUp(keyCode, event);
2176     }
2177
2178     /* package */ void stopLoading() {
2179         mDidStopLoad = true;
2180         resetTitleAndRevertLockIcon();
2181         WebView w = getTopWindow();
2182         w.stopLoading();
2183         // FIXME: before refactor, it is using mWebViewClient. So I keep the
2184         // same logic here. But for subwindow case, should we call into the main
2185         // WebView's onPageFinished as we never call its onPageStarted and if
2186         // the page finishes itself, we don't call onPageFinished.
2187         mTabControl.getCurrentWebView().getWebViewClient().onPageFinished(w,
2188                 w.getUrl());
2189
2190         cancelStopToast();
2191         mStopToast = Toast
2192                 .makeText(this, R.string.stopping, Toast.LENGTH_SHORT);
2193         mStopToast.show();
2194     }
2195
2196     boolean didUserStopLoading() {
2197         return mDidStopLoad;
2198     }
2199
2200     private void cancelStopToast() {
2201         if (mStopToast != null) {
2202             mStopToast.cancel();
2203             mStopToast = null;
2204         }
2205     }
2206
2207     // called by a UI or non-UI thread to post the message
2208     public void postMessage(int what, int arg1, int arg2, Object obj,
2209             long delayMillis) {
2210         mHandler.sendMessageDelayed(mHandler.obtainMessage(what, arg1, arg2,
2211                 obj), delayMillis);
2212     }
2213
2214     // called by a UI or non-UI thread to remove the message
2215     void removeMessages(int what, Object object) {
2216         mHandler.removeMessages(what, object);
2217     }
2218
2219     // public message ids
2220     public final static int LOAD_URL                = 1001;
2221     public final static int STOP_LOAD               = 1002;
2222
2223     // Message Ids
2224     private static final int FOCUS_NODE_HREF         = 102;
2225     private static final int CANCEL_CREDS_REQUEST    = 103;
2226     private static final int RELEASE_WAKELOCK        = 107;
2227
2228     static final int UPDATE_BOOKMARK_THUMBNAIL       = 108;
2229
2230     // Private handler for handling javascript and saving passwords
2231     private Handler mHandler = new Handler() {
2232
2233         public void handleMessage(Message msg) {
2234             switch (msg.what) {
2235                 case FOCUS_NODE_HREF:
2236                 {
2237                     String url = (String) msg.getData().get("url");
2238                     String title = (String) msg.getData().get("title");
2239                     if (url == null || url.length() == 0) {
2240                         break;
2241                     }
2242                     HashMap focusNodeMap = (HashMap) msg.obj;
2243                     WebView view = (WebView) focusNodeMap.get("webview");
2244                     // Only apply the action if the top window did not change.
2245                     if (getTopWindow() != view) {
2246                         break;
2247                     }
2248                     switch (msg.arg1) {
2249                         case R.id.open_context_menu_id:
2250                         case R.id.view_image_context_menu_id:
2251                             loadURL(getTopWindow(), url);
2252                             break;
2253                         case R.id.open_newtab_context_menu_id:
2254                             final Tab parent = mTabControl.getCurrentTab();
2255                             final Tab newTab = openTab(url);
2256                             if (newTab != parent) {
2257                                 parent.addChildTab(newTab);
2258                             }
2259                             break;
2260                         case R.id.bookmark_context_menu_id:
2261                             Intent intent = new Intent(BrowserActivity.this,
2262                                     AddBookmarkPage.class);
2263                             intent.putExtra("url", url);
2264                             intent.putExtra("title", title);
2265                             startActivity(intent);
2266                             break;
2267                         case R.id.share_link_context_menu_id:
2268                             Browser.sendString(BrowserActivity.this, url,
2269                                     getText(R.string.choosertitle_sharevia).toString());
2270                             break;
2271                         case R.id.copy_link_context_menu_id:
2272                             copy(url);
2273                             break;
2274                         case R.id.save_link_context_menu_id:
2275                         case R.id.download_context_menu_id:
2276                             onDownloadStartNoStream(url, null, null, null, -1);
2277                             break;
2278                     }
2279                     break;
2280                 }
2281
2282                 case LOAD_URL:
2283                     loadURL(getTopWindow(), (String) msg.obj);
2284                     break;
2285
2286                 case STOP_LOAD:
2287                     stopLoading();
2288                     break;
2289
2290                 case CANCEL_CREDS_REQUEST:
2291                     resumeAfterCredentials();
2292                     break;
2293
2294                 case RELEASE_WAKELOCK:
2295                     if (mWakeLock.isHeld()) {
2296                         mWakeLock.release();
2297                         // if we reach here, Browser should be still in the
2298                         // background loading after WAKELOCK_TIMEOUT (5-min).
2299                         // To avoid burning the battery, stop loading.
2300                         mTabControl.stopAllLoading();
2301                     }
2302                     break;
2303
2304                 case UPDATE_BOOKMARK_THUMBNAIL:
2305                     WebView view = (WebView) msg.obj;
2306                     if (view != null) {
2307                         updateScreenshot(view);
2308                     }
2309                     break;
2310             }
2311         }
2312     };
2313
2314     private void updateScreenshot(WebView view) {
2315         // If this is a bookmarked site, add a screenshot to the database.
2316         // FIXME: When should we update?  Every time?
2317         // FIXME: Would like to make sure there is actually something to
2318         // draw, but the API for that (WebViewCore.pictureReady()) is not
2319         // currently accessible here.
2320
2321         ContentResolver cr = getContentResolver();
2322         final Cursor c = BrowserBookmarksAdapter.queryBookmarksForUrl(
2323                 cr, view.getOriginalUrl(), view.getUrl(), true);
2324         if (c != null) {
2325             boolean succeed = c.moveToFirst();
2326             ContentValues values = null;
2327             while (succeed) {
2328                 if (values == null) {
2329                     final ByteArrayOutputStream os
2330                             = new ByteArrayOutputStream();
2331                     Bitmap bm = createScreenshot(view);
2332                     if (bm == null) {
2333                         c.close();
2334                         return;
2335                     }
2336                     bm.compress(Bitmap.CompressFormat.PNG, 100, os);
2337                     values = new ContentValues();
2338                     values.put(Browser.BookmarkColumns.THUMBNAIL,
2339                             os.toByteArray());
2340                 }
2341                 cr.update(ContentUris.withAppendedId(Browser.BOOKMARKS_URI,
2342                         c.getInt(0)), values, null, null);
2343                 succeed = c.moveToNext();
2344             }
2345             c.close();
2346         }
2347     }
2348
2349     /**
2350      * Values for the size of the thumbnail created when taking a screenshot.
2351      * Lazily initialized.  Instead of using these directly, use
2352      * getDesiredThumbnailWidth() or getDesiredThumbnailHeight().
2353      */
2354     private static int THUMBNAIL_WIDTH = 0;
2355     private static int THUMBNAIL_HEIGHT = 0;
2356
2357     /**
2358      * Return the desired width for thumbnail screenshots, which are stored in
2359      * the database, and used on the bookmarks screen.
2360      * @param context Context for finding out the density of the screen.
2361      * @return int desired width for thumbnail screenshot.
2362      */
2363     /* package */ static int getDesiredThumbnailWidth(Context context) {
2364         if (THUMBNAIL_WIDTH == 0) {
2365             float density = context.getResources().getDisplayMetrics().density;
2366             THUMBNAIL_WIDTH = (int) (90 * density);
2367             THUMBNAIL_HEIGHT = (int) (80 * density);
2368         }
2369         return THUMBNAIL_WIDTH;
2370     }
2371
2372     /**
2373      * Return the desired height for thumbnail screenshots, which are stored in
2374      * the database, and used on the bookmarks screen.
2375      * @param context Context for finding out the density of the screen.
2376      * @return int desired height for thumbnail screenshot.
2377      */
2378     /* package */ static int getDesiredThumbnailHeight(Context context) {
2379         // To ensure that they are both initialized.
2380         getDesiredThumbnailWidth(context);
2381         return THUMBNAIL_HEIGHT;
2382     }
2383
2384     private Bitmap createScreenshot(WebView view) {
2385         Picture thumbnail = view.capturePicture();
2386         if (thumbnail == null) {
2387             return null;
2388         }
2389         Bitmap bm = Bitmap.createBitmap(getDesiredThumbnailWidth(this),
2390                 getDesiredThumbnailHeight(this), Bitmap.Config.ARGB_4444);
2391         Canvas canvas = new Canvas(bm);
2392         // May need to tweak these values to determine what is the
2393         // best scale factor
2394         int thumbnailWidth = thumbnail.getWidth();
2395         int thumbnailHeight = thumbnail.getHeight();
2396         float scaleFactorX = 1.0f;
2397         float scaleFactorY = 1.0f;
2398         if (thumbnailWidth > 0) {
2399             scaleFactorX = (float) getDesiredThumbnailWidth(this) /
2400                     (float)thumbnailWidth;
2401         } else {
2402             return null;
2403         }
2404
2405         if (view.getWidth() > view.getHeight() &&
2406                 thumbnailHeight < view.getHeight() && thumbnailHeight > 0) {
2407             // If the device is in landscape and the page is shorter
2408             // than the height of the view, stretch the thumbnail to fill the
2409             // space.
2410             scaleFactorY = (float) getDesiredThumbnailHeight(this) /
2411                     (float)thumbnailHeight;
2412         } else {
2413             // In the portrait case, this looks nice.
2414             scaleFactorY = scaleFactorX;
2415         }
2416
2417         canvas.scale(scaleFactorX, scaleFactorY);
2418
2419         thumbnail.draw(canvas);
2420         return bm;
2421     }
2422
2423     // -------------------------------------------------------------------------
2424     // Helper function for WebViewClient.
2425     //-------------------------------------------------------------------------
2426
2427     // Use in overrideUrlLoading
2428     /* package */ final static String SCHEME_WTAI = "wtai://wp/";
2429     /* package */ final static String SCHEME_WTAI_MC = "wtai://wp/mc;";
2430     /* package */ final static String SCHEME_WTAI_SD = "wtai://wp/sd;";
2431     /* package */ final static String SCHEME_WTAI_AP = "wtai://wp/ap;";
2432
2433     void onPageStarted(WebView view, String url, Bitmap favicon) {
2434         // when BrowserActivity just starts, onPageStarted may be called before
2435         // onResume as it is triggered from onCreate. Call resumeWebViewTimers
2436         // to start the timer. As we won't switch tabs while an activity is in
2437         // pause state, we can ensure calling resume and pause in pair.
2438         if (mActivityInPause) resumeWebViewTimers();
2439
2440         resetLockIcon(url);
2441         setUrlTitle(url, null);
2442         setFavicon(favicon);
2443         // Keep this initial progress in sync with initialProgressValue (* 100)
2444         // in ProgressTracker.cpp
2445         // Show some progress so that the user knows the page is beginning to
2446         // load
2447         onProgressChanged(view, 10);
2448         mDidStopLoad = false;
2449         if (!mIsNetworkUp) createAndShowNetworkDialog();
2450
2451         if (mSettings.isTracing()) {
2452             String host;
2453             try {
2454                 WebAddress uri = new WebAddress(url);
2455                 host = uri.mHost;
2456             } catch (android.net.ParseException ex) {
2457                 host = "browser";
2458             }
2459             host = host.replace('.', '_');
2460             host += ".trace";
2461             mInTrace = true;
2462             Debug.startMethodTracing(host, 20 * 1024 * 1024);
2463         }
2464
2465         // Performance probe
2466         if (false) {
2467             mStart = SystemClock.uptimeMillis();
2468             mProcessStart = Process.getElapsedCpuTime();
2469             long[] sysCpu = new long[7];
2470             if (Process.readProcFile("/proc/stat", SYSTEM_CPU_FORMAT, null,
2471                     sysCpu, null)) {
2472                 mUserStart = sysCpu[0] + sysCpu[1];
2473                 mSystemStart = sysCpu[2];
2474                 mIdleStart = sysCpu[3];
2475                 mIrqStart = sysCpu[4] + sysCpu[5] + sysCpu[6];
2476             }
2477             mUiStart = SystemClock.currentThreadTimeMillis();
2478         }
2479     }
2480
2481     void onPageFinished(WebView view, String url) {
2482         // Reset the title and icon in case we stopped a provisional load.
2483         resetTitleAndIcon(view);
2484         // Update the lock icon image only once we are done loading
2485         updateLockIconToLatest();
2486         // pause the WebView timer and release the wake lock if it is finished
2487         // while BrowserActivity is in pause state.
2488         if (mActivityInPause && pauseWebViewTimers()) {
2489             if (mWakeLock.isHeld()) {
2490                 mHandler.removeMessages(RELEASE_WAKELOCK);
2491                 mWakeLock.release();
2492             }
2493         }
2494
2495         // Performance probe
2496         if (false) {
2497             long[] sysCpu = new long[7];
2498             if (Process.readProcFile("/proc/stat", SYSTEM_CPU_FORMAT, null,
2499                     sysCpu, null)) {
2500                 String uiInfo = "UI thread used "
2501                         + (SystemClock.currentThreadTimeMillis() - mUiStart)
2502                         + " ms";
2503                 if (LOGD_ENABLED) {
2504                     Log.d(LOGTAG, uiInfo);
2505                 }
2506                 //The string that gets written to the log
2507                 String performanceString = "It took total "
2508                         + (SystemClock.uptimeMillis() - mStart)
2509                         + " ms clock time to load the page."
2510                         + "\nbrowser process used "
2511                         + (Process.getElapsedCpuTime() - mProcessStart)
2512                         + " ms, user processes used "
2513                         + (sysCpu[0] + sysCpu[1] - mUserStart) * 10
2514                         + " ms, kernel used "
2515                         + (sysCpu[2] - mSystemStart) * 10
2516                         + " ms, idle took " + (sysCpu[3] - mIdleStart) * 10
2517                         + " ms and irq took "
2518                         + (sysCpu[4] + sysCpu[5] + sysCpu[6] - mIrqStart)
2519                         * 10 + " ms, " + uiInfo;
2520                 if (LOGD_ENABLED) {
2521                     Log.d(LOGTAG, performanceString + "\nWebpage: " + url);
2522                 }
2523                 if (url != null) {
2524                     // strip the url to maintain consistency
2525                     String newUrl = new String(url);
2526                     if (newUrl.startsWith("http://www.")) {
2527                         newUrl = newUrl.substring(11);
2528                     } else if (newUrl.startsWith("http://")) {
2529                         newUrl = newUrl.substring(7);
2530                     } else if (newUrl.startsWith("https://www.")) {
2531                         newUrl = newUrl.substring(12);
2532                     } else if (newUrl.startsWith("https://")) {
2533                         newUrl = newUrl.substring(8);
2534                     }
2535                     if (LOGD_ENABLED) {
2536                         Log.d(LOGTAG, newUrl + " loaded");
2537                     }
2538                 }
2539             }
2540          }
2541
2542         if (mInTrace) {
2543             mInTrace = false;
2544             Debug.stopMethodTracing();
2545         }
2546     }
2547
2548     boolean shouldOverrideUrlLoading(WebView view, String url) {
2549         if (url.startsWith(SCHEME_WTAI)) {
2550             // wtai://wp/mc;number
2551             // number=string(phone-number)
2552             if (url.startsWith(SCHEME_WTAI_MC)) {
2553                 Intent intent = new Intent(Intent.ACTION_VIEW,
2554                         Uri.parse(WebView.SCHEME_TEL +
2555                         url.substring(SCHEME_WTAI_MC.length())));
2556                 startActivity(intent);
2557                 return true;
2558             }
2559             // wtai://wp/sd;dtmf
2560             // dtmf=string(dialstring)
2561             if (url.startsWith(SCHEME_WTAI_SD)) {
2562                 // TODO: only send when there is active voice connection
2563                 return false;
2564             }
2565             // wtai://wp/ap;number;name
2566             // number=string(phone-number)
2567             // name=string
2568             if (url.startsWith(SCHEME_WTAI_AP)) {
2569                 // TODO
2570                 return false;
2571             }
2572         }
2573
2574         // The "about:" schemes are internal to the browser; don't want these to
2575         // be dispatched to other apps.
2576         if (url.startsWith("about:")) {
2577             return false;
2578         }
2579
2580         Intent intent;
2581         // perform generic parsing of the URI to turn it into an Intent.
2582         try {
2583             intent = Intent.parseUri(url, Intent.URI_INTENT_SCHEME);
2584         } catch (URISyntaxException ex) {
2585             Log.w("Browser", "Bad URI " + url + ": " + ex.getMessage());
2586             return false;
2587         }
2588
2589         // check whether the intent can be resolved. If not, we will see
2590         // whether we can download it from the Market.
2591         if (getPackageManager().resolveActivity(intent, 0) == null) {
2592             String packagename = intent.getPackage();
2593             if (packagename != null) {
2594                 intent = new Intent(Intent.ACTION_VIEW, Uri
2595                         .parse("market://search?q=pname:" + packagename));
2596                 intent.addCategory(Intent.CATEGORY_BROWSABLE);
2597                 startActivity(intent);
2598                 return true;
2599             } else {
2600                 return false;
2601             }
2602         }
2603
2604         // sanitize the Intent, ensuring web pages can not bypass browser
2605         // security (only access to BROWSABLE activities).
2606         intent.addCategory(Intent.CATEGORY_BROWSABLE);
2607         intent.setComponent(null);
2608         try {
2609             if (startActivityIfNeeded(intent, -1)) {
2610                 return true;
2611             }
2612         } catch (ActivityNotFoundException ex) {
2613             // ignore the error. If no application can handle the URL,
2614             // eg about:blank, assume the browser can handle it.
2615         }
2616
2617         if (mMenuIsDown) {
2618             openTab(url);
2619             closeOptionsMenu();
2620             return true;
2621         }
2622         return false;
2623     }
2624
2625     // -------------------------------------------------------------------------
2626     // Helper function for WebChromeClient
2627     // -------------------------------------------------------------------------
2628
2629     void onProgressChanged(WebView view, int newProgress) {
2630         mTitleBar.setProgress(newProgress);
2631         mFakeTitleBar.setProgress(newProgress);
2632
2633         if (newProgress == 100) {
2634             // onProgressChanged() may continue to be called after the main
2635             // frame has finished loading, as any remaining sub frames continue
2636             // to load. We'll only get called once though with newProgress as
2637             // 100 when everything is loaded. (onPageFinished is called once
2638             // when the main frame completes loading regardless of the state of
2639             // any sub frames so calls to onProgressChanges may continue after
2640             // onPageFinished has executed)
2641             if (mInLoad) {
2642                 mInLoad = false;
2643                 updateInLoadMenuItems();
2644                 // If the options menu is open, leave the title bar
2645                 if (!mOptionsMenuOpen || !mIconView) {
2646                     hideFakeTitleBar();
2647                 }
2648             }
2649         } else if (!mInLoad) {
2650             // onPageFinished may have already been called but a subframe is
2651             // still loading and updating the progress. Reset mInLoad and update
2652             // the menu items.
2653             mInLoad = true;
2654             updateInLoadMenuItems();
2655             if (!mOptionsMenuOpen || mIconView) {
2656                 // This page has begun to load, so show the title bar
2657                 showFakeTitleBar();
2658             }
2659         }
2660     }
2661
2662     void onShowCustomView(View view, WebChromeClient.CustomViewCallback callback) {
2663         if (mCustomView != null)
2664             return;
2665
2666         // Add the custom view to its container.
2667         mCustomViewContainer.addView(view, COVER_SCREEN_GRAVITY_CENTER);
2668         mCustomView = view;
2669         mCustomViewCallback = callback;
2670         // Save the menu state and set it to empty while the custom
2671         // view is showing.
2672         mOldMenuState = mMenuState;
2673         mMenuState = EMPTY_MENU;
2674         // Hide the content view.
2675         mContentView.setVisibility(View.GONE);
2676         // Finally show the custom view container.
2677         setStatusBarVisibility(false);
2678         mCustomViewContainer.setVisibility(View.VISIBLE);
2679         mCustomViewContainer.bringToFront();
2680     }
2681
2682     void onHideCustomView() {
2683         if (mCustomView == null)
2684             return;
2685
2686         // Hide the custom view.
2687         mCustomView.setVisibility(View.GONE);
2688         // Remove the custom view from its container.
2689         mCustomViewContainer.removeView(mCustomView);
2690         mCustomView = null;
2691         // Reset the old menu state.
2692         mMenuState = mOldMenuState;
2693         mOldMenuState = EMPTY_MENU;
2694         mCustomViewContainer.setVisibility(View.GONE);
2695         mCustomViewCallback.onCustomViewHidden();
2696         // Show the content view.
2697         setStatusBarVisibility(true);
2698         mContentView.setVisibility(View.VISIBLE);
2699     }
2700
2701     Bitmap getDefaultVideoPoster() {
2702         if (mDefaultVideoPoster == null) {
2703             mDefaultVideoPoster = BitmapFactory.decodeResource(
2704                     getResources(), R.drawable.default_video_poster);
2705         }
2706         return mDefaultVideoPoster;
2707     }
2708
2709     View getVideoLoadingProgressView() {
2710         if (mVideoProgressView == null) {
2711             LayoutInflater inflater = LayoutInflater.from(BrowserActivity.this);
2712             mVideoProgressView = inflater.inflate(
2713                     R.layout.video_loading_progress, null);
2714         }
2715         return mVideoProgressView;
2716     }
2717
2718     /*
2719      * The Object used to inform the WebView of the file to upload.
2720      */
2721     private ValueCallback<Uri> mUploadMessage;
2722
2723     void openFileChooser(ValueCallback<Uri> uploadMsg) {
2724         if (mUploadMessage != null) return;
2725         mUploadMessage = uploadMsg;
2726         Intent i = new Intent(Intent.ACTION_GET_CONTENT);
2727         i.addCategory(Intent.CATEGORY_OPENABLE);
2728         i.setType("*/*");
2729         BrowserActivity.this.startActivityForResult(Intent.createChooser(i,
2730                 getString(R.string.choose_upload)), FILE_SELECTED);
2731     }
2732
2733     // -------------------------------------------------------------------------
2734     // Implement functions for DownloadListener
2735     // -------------------------------------------------------------------------
2736
2737     /**
2738      * Notify the host application a download should be done, or that
2739      * the data should be streamed if a streaming viewer is available.
2740      * @param url The full url to the content that should be downloaded
2741      * @param contentDisposition Content-disposition http header, if
2742      *                           present.
2743      * @param mimetype The mimetype of the content reported by the server
2744      * @param contentLength The file size reported by the server
2745      */
2746     public void onDownloadStart(String url, String userAgent,
2747             String contentDisposition, String mimetype, long contentLength) {
2748         // if we're dealing wih A/V content that's not explicitly marked
2749         //     for download, check if it's streamable.
2750         if (contentDisposition == null
2751                 || !contentDisposition.regionMatches(
2752                         true, 0, "attachment", 0, 10)) {
2753             // query the package manager to see if there's a registered handler
2754             //     that matches.
2755             Intent intent = new Intent(Intent.ACTION_VIEW);
2756             intent.setDataAndType(Uri.parse(url), mimetype);
2757             ResolveInfo info = getPackageManager().resolveActivity(intent,
2758                     PackageManager.MATCH_DEFAULT_ONLY);
2759             if (info != null) {
2760                 ComponentName myName = getComponentName();
2761                 // If we resolved to ourselves, we don't want to attempt to
2762                 // load the url only to try and download it again.
2763                 if (!myName.getPackageName().equals(
2764                         info.activityInfo.packageName)
2765                         || !myName.getClassName().equals(
2766                                 info.activityInfo.name)) {
2767                     // someone (other than us) knows how to handle this mime
2768                     // type with this scheme, don't download.
2769                     try {
2770                         startActivity(intent);
2771                         return;
2772                     } catch (ActivityNotFoundException ex) {
2773                         if (LOGD_ENABLED) {
2774                             Log.d(LOGTAG, "activity not found for " + mimetype
2775                                     + " over " + Uri.parse(url).getScheme(),
2776                                     ex);
2777                         }
2778                         // Best behavior is to fall back to a download in this
2779                         // case
2780                     }
2781                 }
2782             }
2783         }
2784         onDownloadStartNoStream(url, userAgent, contentDisposition, mimetype, contentLength);
2785     }
2786
2787     /**
2788      * Notify the host application a download should be done, even if there
2789      * is a streaming viewer available for thise type.
2790      * @param url The full url to the content that should be downloaded
2791      * @param contentDisposition Content-disposition http header, if
2792      *                           present.
2793      * @param mimetype The mimetype of the content reported by the server
2794      * @param contentLength The file size reported by the server
2795      */
2796     /*package */ void onDownloadStartNoStream(String url, String userAgent,
2797             String contentDisposition, String mimetype, long contentLength) {
2798
2799         String filename = URLUtil.guessFileName(url,
2800                 contentDisposition, mimetype);
2801
2802         // Check to see if we have an SDCard
2803         String status = Environment.getExternalStorageState();
2804         if (!status.equals(Environment.MEDIA_MOUNTED)) {
2805             int title;
2806             String msg;
2807
2808             // Check to see if the SDCard is busy, same as the music app
2809             if (status.equals(Environment.MEDIA_SHARED)) {
2810                 msg = getString(R.string.download_sdcard_busy_dlg_msg);
2811                 title = R.string.download_sdcard_busy_dlg_title;
2812             } else {
2813                 msg = getString(R.string.download_no_sdcard_dlg_msg, filename);
2814                 title = R.string.download_no_sdcard_dlg_title;
2815             }
2816
2817             new AlertDialog.Builder(this)
2818                 .setTitle(title)
2819                 .setIcon(android.R.drawable.ic_dialog_alert)
2820                 .setMessage(msg)
2821                 .setPositiveButton(R.string.ok, null)
2822                 .show();
2823             return;
2824         }
2825
2826         // java.net.URI is a lot stricter than KURL so we have to undo
2827         // KURL's percent-encoding and redo the encoding using java.net.URI.
2828         URI uri = null;
2829         try {
2830             // Undo the percent-encoding that KURL may have done.
2831             String newUrl = new String(URLUtil.decode(url.getBytes()));
2832             // Parse the url into pieces
2833             WebAddress w = new WebAddress(newUrl);
2834             String frag = null;
2835             String query = null;
2836             String path = w.mPath;
2837             // Break the path into path, query, and fragment
2838             if (path.length() > 0) {
2839                 // Strip the fragment
2840                 int idx = path.lastIndexOf('#');
2841                 if (idx != -1) {
2842                     frag = path.substring(idx + 1);
2843                     path = path.substring(0, idx);
2844                 }
2845                 idx = path.lastIndexOf('?');
2846                 if (idx != -1) {
2847                     query = path.substring(idx + 1);
2848                     path = path.substring(0, idx);
2849                 }
2850             }
2851             uri = new URI(w.mScheme, w.mAuthInfo, w.mHost, w.mPort, path,
2852                     query, frag);
2853         } catch (Exception e) {
2854             Log.e(LOGTAG, "Could not parse url for download: " + url, e);
2855             return;
2856         }
2857
2858         // XXX: Have to use the old url since the cookies were stored using the
2859         // old percent-encoded url.
2860         String cookies = CookieManager.getInstance().getCookie(url);
2861
2862         ContentValues values = new ContentValues();
2863         values.put(Downloads.COLUMN_URI, uri.toString());
2864         values.put(Downloads.COLUMN_COOKIE_DATA, cookies);
2865         values.put(Downloads.COLUMN_USER_AGENT, userAgent);
2866         values.put(Downloads.COLUMN_NOTIFICATION_PACKAGE,
2867                 getPackageName());
2868         values.put(Downloads.COLUMN_NOTIFICATION_CLASS,
2869                 BrowserDownloadPage.class.getCanonicalName());
2870         values.put(Downloads.COLUMN_VISIBILITY, Downloads.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
2871         values.put(Downloads.COLUMN_MIME_TYPE, mimetype);
2872         values.put(Downloads.COLUMN_FILE_NAME_HINT, filename);
2873         values.put(Downloads.COLUMN_DESCRIPTION, uri.getHost());
2874         if (contentLength > 0) {
2875             values.put(Downloads.COLUMN_TOTAL_BYTES, contentLength);
2876         }
2877         if (mimetype == null) {
2878             // We must have long pressed on a link or image to download it. We
2879             // are not sure of the mimetype in this case, so do a head request
2880             new FetchUrlMimeType(this).execute(values);
2881         } else {
2882             final Uri contentUri =
2883                     getContentResolver().insert(Downloads.CONTENT_URI, values);
2884             viewDownloads(contentUri);
2885         }
2886
2887     }
2888
2889     // -------------------------------------------------------------------------
2890
2891     /**
2892      * Resets the lock icon. This method is called when we start a new load and
2893      * know the url to be loaded.
2894      */
2895     private void resetLockIcon(String url) {
2896         // Save the lock-icon state (we revert to it if the load gets cancelled)
2897         mTabControl.getCurrentTab().resetLockIcon(url);
2898         updateLockIconImage(LOCK_ICON_UNSECURE);
2899     }
2900
2901     /**
2902      * Update the lock icon to correspond to our latest state.
2903      */
2904     private void updateLockIconToLatest() {
2905         updateLockIconImage(mTabControl.getCurrentTab().getLockIconType());
2906     }
2907
2908     /**
2909      * Updates the lock-icon image in the title-bar.
2910      */
2911     private void updateLockIconImage(int lockIconType) {
2912         Drawable d = null;
2913         if (lockIconType == LOCK_ICON_SECURE) {
2914             d = mSecLockIcon;
2915         } else if (lockIconType == LOCK_ICON_MIXED) {
2916             d = mMixLockIcon;
2917         }
2918         mTitleBar.setLock(d);
2919         mFakeTitleBar.setLock(d);
2920     }
2921
2922     /**
2923      * Displays a page-info dialog.
2924      * @param tab The tab to show info about
2925      * @param fromShowSSLCertificateOnError The flag that indicates whether
2926      * this dialog was opened from the SSL-certificate-on-error dialog or
2927      * not. This is important, since we need to know whether to return to
2928      * the parent dialog or simply dismiss.
2929      */
2930     private void showPageInfo(final Tab tab,
2931                               final boolean fromShowSSLCertificateOnError) {
2932         final LayoutInflater factory = LayoutInflater
2933                 .from(this);
2934
2935         final View pageInfoView = factory.inflate(R.layout.page_info, null);
2936
2937         final WebView view = tab.getWebView();
2938
2939         String url = null;
2940         String title = null;
2941
2942         if (view == null) {
2943             url = tab.getUrl();
2944             title = tab.getTitle();
2945         } else if (view == mTabControl.getCurrentWebView()) {
2946              // Use the cached title and url if this is the current WebView
2947             url = mUrl;
2948             title = mTitle;
2949         } else {
2950             url = view.getUrl();
2951             title = view.getTitle();
2952         }
2953
2954         if (url == null) {
2955             url = "";
2956         }
2957         if (title == null) {
2958             title = "";
2959         }
2960
2961         ((TextView) pageInfoView.findViewById(R.id.address)).setText(url);
2962         ((TextView) pageInfoView.findViewById(R.id.title)).setText(title);
2963
2964         mPageInfoView = tab;
2965         mPageInfoFromShowSSLCertificateOnError = new Boolean(fromShowSSLCertificateOnError);
2966
2967         AlertDialog.Builder alertDialogBuilder =
2968             new AlertDialog.Builder(this)
2969             .setTitle(R.string.page_info).setIcon(android.R.drawable.ic_dialog_info)
2970             .setView(pageInfoView)
2971             .setPositiveButton(
2972                 R.string.ok,
2973                 new DialogInterface.OnClickListener() {
2974                     public void onClick(DialogInterface dialog,
2975                                         int whichButton) {
2976                         mPageInfoDialog = null;
2977                         mPageInfoView = null;
2978                         mPageInfoFromShowSSLCertificateOnError = null;
2979
2980                         // if we came here from the SSL error dialog
2981                         if (fromShowSSLCertificateOnError) {
2982                             // go back to the SSL error dialog
2983                             showSSLCertificateOnError(
2984                                 mSSLCertificateOnErrorView,
2985                                 mSSLCertificateOnErrorHandler,
2986                                 mSSLCertificateOnErrorError);
2987                         }
2988                     }
2989                 })
2990             .setOnCancelListener(
2991                 new DialogInterface.OnCancelListener() {
2992                     public void onCancel(DialogInterface dialog) {
2993                         mPageInfoDialog = null;
2994                         mPageInfoView = null;
2995                         mPageInfoFromShowSSLCertificateOnError = null;
2996
2997                         // if we came here from the SSL error dialog
2998                         if (fromShowSSLCertificateOnError) {
2999                             // go back to the SSL error dialog
3000                             showSSLCertificateOnError(
3001                                 mSSLCertificateOnErrorView,
3002                                 mSSLCertificateOnErrorHandler,
3003                                 mSSLCertificateOnErrorError);
3004                         }
3005                     }
3006                 });
3007
3008         // if we have a main top-level page SSL certificate set or a certificate
3009         // error
3010         if (fromShowSSLCertificateOnError ||
3011                 (view != null && view.getCertificate() != null)) {
3012             // add a 'View Certificate' button
3013             alertDialogBuilder.setNeutralButton(
3014                 R.string.view_certificate,
3015                 new DialogInterface.OnClickListener() {
3016                     public void onClick(DialogInterface dialog,
3017                                         int whichButton) {
3018                         mPageInfoDialog = null;
3019                         mPageInfoView = null;
3020                         mPageInfoFromShowSSLCertificateOnError = null;
3021
3022                         // if we came here from the SSL error dialog
3023                         if (fromShowSSLCertificateOnError) {
3024                             // go back to the SSL error dialog
3025                             showSSLCertificateOnError(
3026                                 mSSLCertificateOnErrorView,
3027                                 mSSLCertificateOnErrorHandler,
3028                                 mSSLCertificateOnErrorError);
3029                         } else {
3030                             // otherwise, display the top-most certificate from
3031                             // the chain
3032                             if (view.getCertificate() != null) {
3033                                 showSSLCertificate(tab);
3034                             }
3035                         }
3036                     }
3037                 });
3038         }
3039
3040         mPageInfoDialog = alertDialogBuilder.show();
3041     }
3042
3043        /**
3044      * Displays the main top-level page SSL certificate dialog
3045      * (accessible from the Page-Info dialog).
3046      * @param tab The tab to show certificate for.
3047      */
3048     private void showSSLCertificate(final Tab tab) {
3049         final View certificateView =
3050                 inflateCertificateView(tab.getWebView().getCertificate());
3051         if (certificateView == null) {
3052             return;
3053         }
3054
3055         LayoutInflater factory = LayoutInflater.from(this);
3056
3057         final LinearLayout placeholder =
3058                 (LinearLayout)certificateView.findViewById(R.id.placeholder);
3059
3060         LinearLayout ll = (LinearLayout) factory.inflate(
3061             R.layout.ssl_success, placeholder);
3062         ((TextView)ll.findViewById(R.id.success))
3063             .setText(R.string.ssl_certificate_is_valid);
3064
3065         mSSLCertificateView = tab;
3066         mSSLCertificateDialog =
3067             new AlertDialog.Builder(this)
3068                 .setTitle(R.string.ssl_certificate).setIcon(
3069                     R.drawable.ic_dialog_browser_certificate_secure)
3070                 .setView(certificateView)
3071                 .setPositiveButton(R.string.ok,
3072                         new DialogInterface.OnClickListener() {
3073                             public void onClick(DialogInterface dialog,
3074                                     int whichButton) {
3075                                 mSSLCertificateDialog = null;
3076                                 mSSLCertificateView = null;
3077
3078                                 showPageInfo(tab, false);
3079                             }
3080                         })
3081                 .setOnCancelListener(
3082                         new DialogInterface.OnCancelListener() {
3083                             public void onCancel(DialogInterface dialog) {
3084                                 mSSLCertificateDialog = null;
3085                                 mSSLCertificateView = null;
3086
3087                                 showPageInfo(tab, false);
3088                             }
3089                         })
3090                 .show();
3091     }
3092
3093     /**
3094      * Displays the SSL error certificate dialog.
3095      * @param view The target web-view.
3096      * @param handler The SSL error handler responsible for cancelling the
3097      * connection that resulted in an SSL error or proceeding per user request.
3098      * @param error The SSL error object.
3099      */
3100     void showSSLCertificateOnError(
3101         final WebView view, final SslErrorHandler handler, final SslError error) {
3102
3103         final View certificateView =
3104             inflateCertificateView(error.getCertificate());
3105         if (certificateView == null) {
3106             return;
3107         }
3108
3109         LayoutInflater factory = LayoutInflater.from(this);
3110
3111         final LinearLayout placeholder =
3112                 (LinearLayout)certificateView.findViewById(R.id.placeholder);
3113
3114         if (error.hasError(SslError.SSL_UNTRUSTED)) {
3115             LinearLayout ll = (LinearLayout)factory
3116                 .inflate(R.layout.ssl_warning, placeholder);
3117             ((TextView)ll.findViewById(R.id.warning))
3118                 .setText(R.string.ssl_untrusted);
3119         }
3120
3121         if (error.hasError(SslError.SSL_IDMISMATCH)) {
3122             LinearLayout ll = (LinearLayout)factory
3123                 .inflate(R.layout.ssl_warning, placeholder);
3124             ((TextView)ll.findViewById(R.id.warning))
3125                 .setText(R.string.ssl_mismatch);
3126         }
3127
3128         if (error.hasError(SslError.SSL_EXPIRED)) {
3129             LinearLayout ll = (LinearLayout)factory
3130                 .inflate(R.layout.ssl_warning, placeholder);
3131             ((TextView)ll.findViewById(R.id.warning))
3132                 .setText(R.string.ssl_expired);
3133         }
3134
3135         if (error.hasError(SslError.SSL_NOTYETVALID)) {
3136             LinearLayout ll = (LinearLayout)factory
3137                 .inflate(R.layout.ssl_warning, placeholder);
3138             ((TextView)ll.findViewById(R.id.warning))
3139                 .setText(R.string.ssl_not_yet_valid);
3140         }
3141
3142         mSSLCertificateOnErrorHandler = handler;
3143         mSSLCertificateOnErrorView = view;
3144         mSSLCertificateOnErrorError = error;
3145         mSSLCertificateOnErrorDialog =
3146             new AlertDialog.Builder(this)
3147                 .setTitle(R.string.ssl_certificate).setIcon(
3148                     R.drawable.ic_dialog_browser_certificate_partially_secure)
3149                 .setView(certificateView)
3150                 .setPositiveButton(R.string.ok,
3151                         new DialogInterface.OnClickListener() {
3152                             public void onClick(DialogInterface dialog,
3153                                     int whichButton) {
3154                                 mSSLCertificateOnErrorDialog = null;
3155                                 mSSLCertificateOnErrorView = null;
3156                                 mSSLCertificateOnErrorHandler = null;
3157                                 mSSLCertificateOnErrorError = null;
3158
3159                                 view.getWebViewClient().onReceivedSslError(
3160                                                 view, handler, error);
3161                             }
3162                         })
3163                  .setNeutralButton(R.string.page_info_view,
3164                         new DialogInterface.OnClickListener() {
3165                             public void onClick(DialogInterface dialog,
3166                                     int whichButton) {
3167                                 mSSLCertificateOnErrorDialog = null;
3168
3169                                 // do not clear the dialog state: we will
3170                                 // need to show the dialog again once the
3171                                 // user is done exploring the page-info details
3172
3173                                 showPageInfo(mTabControl.getTabFromView(view),
3174                                         true);
3175                             }
3176                         })
3177                 .setOnCancelListener(
3178                         new DialogInterface.OnCancelListener() {
3179                             public void onCancel(DialogInterface dialog) {
3180                                 mSSLCertificateOnErrorDialog = null;
3181                                 mSSLCertificateOnErrorView = null;
3182                                 mSSLCertificateOnErrorHandler = null;
3183                                 mSSLCertificateOnErrorError = null;
3184
3185                                 view.getWebViewClient().onReceivedSslError(
3186                                                 view, handler, error);
3187                             }
3188                         })
3189                 .show();
3190     }
3191
3192     /**
3193      * Inflates the SSL certificate view (helper method).
3194      * @param certificate The SSL certificate.
3195      * @return The resultant certificate view with issued-to, issued-by,
3196      * issued-on, expires-on, and possibly other fields set.
3197      * If the input certificate is null, returns null.
3198      */
3199     private View inflateCertificateView(SslCertificate certificate) {
3200         if (certificate == null) {
3201             return null;
3202         }
3203
3204         LayoutInflater factory = LayoutInflater.from(this);
3205
3206         View certificateView = factory.inflate(
3207             R.layout.ssl_certificate, null);
3208
3209         // issued to:
3210         SslCertificate.DName issuedTo = certificate.getIssuedTo();
3211         if (issuedTo != null) {
3212             ((TextView) certificateView.findViewById(R.id.to_common))
3213                 .setText(issuedTo.getCName());
3214             ((TextView) certificateView.findViewById(R.id.to_org))
3215                 .setText(issuedTo.getOName());
3216             ((TextView) certificateView.findViewById(R.id.to_org_unit))
3217                 .setText(issuedTo.getUName());
3218         }
3219
3220         // issued by:
3221         SslCertificate.DName issuedBy = certificate.getIssuedBy();
3222         if (issuedBy != null) {
3223             ((TextView) certificateView.findViewById(R.id.by_common))
3224                 .setText(issuedBy.getCName());
3225             ((TextView) certificateView.findViewById(R.id.by_org))
3226                 .setText(issuedBy.getOName());
3227             ((TextView) certificateView.findViewById(R.id.by_org_unit))
3228                 .setText(issuedBy.getUName());
3229         }
3230
3231         // issued on:
3232         String issuedOn = reformatCertificateDate(
3233             certificate.getValidNotBefore());
3234         ((TextView) certificateView.findViewById(R.id.issued_on))
3235             .setText(issuedOn);
3236
3237         // expires on:
3238         String expiresOn = reformatCertificateDate(
3239             certificate.getValidNotAfter());
3240         ((TextView) certificateView.findViewById(R.id.expires_on))
3241             .setText(expiresOn);
3242
3243         return certificateView;
3244     }
3245
3246     /**
3247      * Re-formats the certificate date (Date.toString()) string to
3248      * a properly localized date string.
3249      * @return Properly localized version of the certificate date string and
3250      * the original certificate date string if fails to localize.
3251      * If the original string is null, returns an empty string "".
3252      */
3253     private String reformatCertificateDate(String certificateDate) {
3254       String reformattedDate = null;
3255
3256       if (certificateDate != null) {
3257           Date date = null;
3258           try {
3259               date = java.text.DateFormat.getInstance().parse(certificateDate);
3260           } catch (ParseException e) {
3261               date = null;
3262           }
3263
3264           if (date != null) {
3265               reformattedDate =
3266                   DateFormat.getDateFormat(this).format(date);
3267           }
3268       }
3269
3270       return reformattedDate != null ? reformattedDate :
3271           (certificateDate != null ? certificateDate : "");
3272     }
3273
3274     /**
3275      * Displays an http-authentication dialog.
3276      */
3277     void showHttpAuthentication(final HttpAuthHandler handler,
3278             final String host, final String realm, final String title,
3279             final String name, final String password, int focusId) {
3280         LayoutInflater factory = LayoutInflater.from(this);
3281         final View v = factory
3282                 .inflate(R.layout.http_authentication, null);
3283         if (name != null) {
3284             ((EditText) v.findViewById(R.id.username_edit)).setText(name);
3285         }
3286         if (password != null) {
3287             ((EditText) v.findViewById(R.id.password_edit)).setText(password);
3288         }
3289
3290         String titleText = title;
3291         if (titleText == null) {
3292             titleText = getText(R.string.sign_in_to).toString().replace(
3293                     "%s1", host).replace("%s2", realm);
3294         }
3295
3296         mHttpAuthHandler = handler;
3297         AlertDialog dialog = new AlertDialog.Builder(this)
3298                 .setTitle(titleText)
3299                 .setIcon(android.R.drawable.ic_dialog_alert)
3300                 .setView(v)
3301                 .setPositiveButton(R.string.action,
3302                         new DialogInterface.OnClickListener() {
3303                              public void onClick(DialogInterface dialog,
3304                                      int whichButton) {
3305                                 String nm = ((EditText) v
3306                                         .findViewById(R.id.username_edit))
3307                                         .getText().toString();
3308                                 String pw = ((EditText) v
3309                                         .findViewById(R.id.password_edit))
3310                                         .getText().toString();
3311                                 BrowserActivity.this.setHttpAuthUsernamePassword
3312                                         (host, realm, nm, pw);
3313                                 handler.proceed(nm, pw);
3314                                 mHttpAuthenticationDialog = null;
3315                                 mHttpAuthHandler = null;
3316                             }})
3317                 .setNegativeButton(R.string.cancel,
3318                         new DialogInterface.OnClickListener() {
3319                             public void onClick(DialogInterface dialog,
3320                                     int whichButton) {
3321                                 handler.cancel();
3322                                 BrowserActivity.this.resetTitleAndRevertLockIcon();
3323                                 mHttpAuthenticationDialog = null;
3324                                 mHttpAuthHandler = null;
3325                             }})
3326                 .setOnCancelListener(new DialogInterface.OnCancelListener() {
3327                         public void onCancel(DialogInterface dialog) {
3328                             handler.cancel();
3329                             BrowserActivity.this.resetTitleAndRevertLockIcon();
3330                             mHttpAuthenticationDialog = null;
3331                             mHttpAuthHandler = null;
3332                         }})
3333                 .create();
3334         // Make the IME appear when the dialog is displayed if applicable.
3335         dialog.getWindow().setSoftInputMode(
3336                 WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
3337         dialog.show();
3338         if (focusId != 0) {
3339             dialog.findViewById(focusId).requestFocus();
3340         } else {
3341             v.findViewById(R.id.username_edit).requestFocus();
3342         }
3343         mHttpAuthenticationDialog = dialog;
3344     }
3345
3346     public int getProgress() {
3347         WebView w = mTabControl.getCurrentWebView();
3348         if (w != null) {
3349             return w.getProgress();
3350         } else {
3351             return 100;
3352         }
3353     }
3354
3355     /**
3356      * Set HTTP authentication password.
3357      *
3358      * @param host The host for the password
3359      * @param realm The realm for the password
3360      * @param username The username for the password. If it is null, it means
3361      *            password can't be saved.
3362      * @param password The password
3363      */
3364     public void setHttpAuthUsernamePassword(String host, String realm,
3365                                             String username,
3366                                             String password) {
3367         WebView w = mTabControl.getCurrentWebView();
3368         if (w != null) {
3369             w.setHttpAuthUsernamePassword(host, realm, username, password);
3370         }
3371     }
3372
3373     /**
3374      * connectivity manager says net has come or gone... inform the user
3375      * @param up true if net has come up, false if net has gone down
3376      */
3377     public void onNetworkToggle(boolean up) {
3378         if (up == mIsNetworkUp) {
3379             return;
3380         } else if (up) {
3381             mIsNetworkUp = true;
3382             if (mAlertDialog != null) {
3383                 mAlertDialog.cancel();
3384                 mAlertDialog = null;
3385             }
3386         } else {
3387             mIsNetworkUp = false;
3388             if (mInLoad) {
3389                 createAndShowNetworkDialog();
3390            }
3391         }
3392         WebView w = mTabControl.getCurrentWebView();
3393         if (w != null) {
3394             w.setNetworkAvailable(up);
3395         }
3396     }
3397
3398     boolean isNetworkUp() {
3399         return mIsNetworkUp;
3400     }
3401
3402     // This method shows the network dialog alerting the user that the net is
3403     // down. It will only show the dialog if mAlertDialog is null.
3404     private void createAndShowNetworkDialog() {
3405         if (mAlertDialog == null) {
3406             mAlertDialog = new AlertDialog.Builder(this)
3407                     .setTitle(R.string.loadSuspendedTitle)
3408                     .setMessage(R.string.loadSuspended)
3409                     .setPositiveButton(R.string.ok, null)
3410                     .show();
3411         }
3412     }
3413
3414     @Override
3415     protected void onActivityResult(int requestCode, int resultCode,
3416                                     Intent intent) {
3417         if (getTopWindow() == null) return;
3418
3419         switch (requestCode) {
3420             case COMBO_PAGE:
3421                 if (resultCode == RESULT_OK && intent != null) {
3422                     String data = intent.getAction();
3423                     Bundle extras = intent.getExtras();
3424                     if (extras != null && extras.getBoolean("new_window", false)) {
3425                         openTab(data);
3426                     } else {
3427                         final Tab currentTab =
3428                                 mTabControl.getCurrentTab();
3429                         dismissSubWindow(currentTab);
3430                         if (data != null && data.length() != 0) {
3431                             getTopWindow().loadUrl(data);
3432                         }
3433                     }
3434                 }
3435                 break;
3436             // Choose a file from the file picker.
3437             case FILE_SELECTED:
3438                 if (null == mUploadMessage) break;
3439                 Uri result = intent == null || resultCode != RESULT_OK ? null
3440                         : intent.getData();
3441                 mUploadMessage.onReceiveValue(result);
3442                 mUploadMessage = null;
3443                 break;
3444             default:
3445                 break;
3446         }
3447         getTopWindow().requestFocus();
3448     }
3449
3450     /*
3451      * This method is called as a result of the user selecting the options
3452      * menu to see the download window, or when a download changes state. It
3453      * shows the download window ontop of the current window.
3454      */
3455     /* package */ void viewDownloads(Uri downloadRecord) {
3456         Intent intent = new Intent(this,
3457                 BrowserDownloadPage.class);
3458         intent.setData(downloadRecord);
3459         startActivityForResult(intent, BrowserActivity.DOWNLOAD_PAGE);
3460
3461     }
3462
3463     /**
3464      * Open the Go page.
3465      * @param startWithHistory If true, open starting on the history tab.
3466      *                         Otherwise, start with the bookmarks tab.
3467      */
3468     /* package */ void bookmarksOrHistoryPicker(boolean startWithHistory) {
3469         WebView current = mTabControl.getCurrentWebView();
3470         if (current == null) {
3471             return;
3472         }
3473         Intent intent = new Intent(this,
3474                 CombinedBookmarkHistoryActivity.class);
3475         String title = current.getTitle();
3476         String url = current.getUrl();
3477         Bitmap thumbnail = createScreenshot(current);
3478
3479         // Just in case the user opens bookmarks before a page finishes loading
3480         // so the current history item, and therefore the page, is null.
3481         if (null == url) {
3482             url = mLastEnteredUrl;
3483             // This can happen.
3484             if (null == url) {
3485                 url = mSettings.getHomePage();
3486             }
3487         }
3488         // In case the web page has not yet received its associated title.
3489         if (title == null) {
3490             title = url;
3491         }
3492         intent.putExtra("title", title);
3493         intent.putExtra("url", url);
3494         intent.putExtra("thumbnail", thumbnail);
3495         // Disable opening in a new window if we have maxed out the windows
3496         intent.putExtra("disable_new_window", !mTabControl.canCreateNewTab());
3497         intent.putExtra("touch_icon_url", current.getTouchIconUrl());
3498         if (startWithHistory) {
3499             intent.putExtra(CombinedBookmarkHistoryActivity.STARTING_TAB,
3500                     CombinedBookmarkHistoryActivity.HISTORY_TAB);
3501         }
3502         startActivityForResult(intent, COMBO_PAGE);
3503     }
3504
3505     // Called when loading from context menu or LOAD_URL message
3506     private void loadURL(WebView view, String url) {
3507         // In case the user enters nothing.
3508         if (url != null && url.length() != 0 && view != null) {
3509             url = smartUrlFilter(url);
3510             if (!view.getWebViewClient().shouldOverrideUrlLoading(view, url)) {
3511                 view.loadUrl(url);
3512             }
3513         }
3514     }
3515
3516     private String smartUrlFilter(Uri inUri) {
3517         if (inUri != null) {
3518             return smartUrlFilter(inUri.toString());
3519         }
3520         return null;
3521     }
3522
3523     protected static final Pattern ACCEPTED_URI_SCHEMA = Pattern.compile(
3524             "(?i)" + // switch on case insensitive matching
3525             "(" +    // begin group for schema
3526             "(?:http|https|file):\\/\\/" +
3527             "|(?:inline|data|about|content|javascript):" +
3528             ")" +
3529             "(.*)" );
3530
3531     /**
3532      * Attempts to determine whether user input is a URL or search
3533      * terms.  Anything with a space is passed to search.
3534      *
3535      * Converts to lowercase any mistakenly uppercased schema (i.e.,
3536      * "Http://" converts to "http://"
3537      *
3538      * @return Original or modified URL
3539      *
3540      */
3541     String smartUrlFilter(String url) {
3542
3543         String inUrl = url.trim();
3544         boolean hasSpace = inUrl.indexOf(' ') != -1;
3545
3546         Matcher matcher = ACCEPTED_URI_SCHEMA.matcher(inUrl);
3547         if (matcher.matches()) {
3548             // force scheme to lowercase
3549             String scheme = matcher.group(1);
3550             String lcScheme = scheme.toLowerCase();
3551             if (!lcScheme.equals(scheme)) {
3552                 inUrl = lcScheme + matcher.group(2);
3553             }
3554             if (hasSpace) {
3555                 inUrl = inUrl.replace(" ", "%20");
3556             }
3557             return inUrl;
3558         }
3559         if (hasSpace) {
3560             // FIXME: Is this the correct place to add to searches?
3561             // what if someone else calls this function?
3562             int shortcut = parseUrlShortcut(inUrl);
3563             if (shortcut != SHORTCUT_INVALID) {
3564                 Browser.addSearchUrl(mResolver, inUrl);
3565                 String query = inUrl.substring(2);
3566                 switch (shortcut) {
3567                 case SHORTCUT_GOOGLE_SEARCH:
3568                     return URLUtil.composeSearchUrl(query, QuickSearch_G, QUERY_PLACE_HOLDER);
3569                 case SHORTCUT_WIKIPEDIA_SEARCH:
3570                     return URLUtil.composeSearchUrl(query, QuickSearch_W, QUERY_PLACE_HOLDER);
3571                 case SHORTCUT_DICTIONARY_SEARCH:
3572                     return URLUtil.composeSearchUrl(query, QuickSearch_D, QUERY_PLACE_HOLDER);
3573                 case SHORTCUT_GOOGLE_MOBILE_LOCAL_SEARCH:
3574                     // FIXME: we need location in this case
3575                     return URLUtil.composeSearchUrl(query, QuickSearch_L, QUERY_PLACE_HOLDER);
3576                 }
3577             }
3578         } else {
3579             if (Patterns.WEB_URL.matcher(inUrl).matches()) {
3580                 return URLUtil.guessUrl(inUrl);
3581             }
3582         }
3583
3584         Browser.addSearchUrl(mResolver, inUrl);
3585         return URLUtil.composeSearchUrl(inUrl, QuickSearch_G, QUERY_PLACE_HOLDER);
3586     }
3587
3588     /* package */ void setShouldShowErrorConsole(boolean flag) {
3589         if (flag == mShouldShowErrorConsole) {
3590             // Nothing to do.
3591             return;
3592         }
3593
3594         mShouldShowErrorConsole = flag;
3595
3596         ErrorConsoleView errorConsole = mTabControl.getCurrentTab()
3597                 .getErrorConsole(true);
3598
3599         if (flag) {
3600             // Setting the show state of the console will cause it's the layout to be inflated.
3601             if (errorConsole.numberOfErrors() > 0) {
3602                 errorConsole.showConsole(ErrorConsoleView.SHOW_MINIMIZED);
3603             } else {
3604                 errorConsole.showConsole(ErrorConsoleView.SHOW_NONE);
3605             }
3606
3607             // Now we can add it to the main view.
3608             mErrorConsoleContainer.addView(errorConsole,
3609                     new LinearLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT,
3610                                                   ViewGroup.LayoutParams.WRAP_CONTENT));
3611         } else {
3612             mErrorConsoleContainer.removeView(errorConsole);
3613         }
3614
3615     }
3616
3617     boolean shouldShowErrorConsole() {
3618         return mShouldShowErrorConsole;
3619     }
3620
3621     private void setStatusBarVisibility(boolean visible) {
3622         int flag = visible ? 0 : WindowManager.LayoutParams.FLAG_FULLSCREEN;
3623         getWindow().setFlags(flag, WindowManager.LayoutParams.FLAG_FULLSCREEN);
3624     }
3625
3626     final static int LOCK_ICON_UNSECURE = 0;
3627     final static int LOCK_ICON_SECURE   = 1;
3628     final static int LOCK_ICON_MIXED    = 2;
3629
3630     private BrowserSettings mSettings;
3631     private TabControl      mTabControl;
3632     private ContentResolver mResolver;
3633     private FrameLayout     mContentView;
3634     private View            mCustomView;
3635     private FrameLayout     mCustomViewContainer;
3636     private WebChromeClient.CustomViewCallback mCustomViewCallback;
3637
3638     // FIXME, temp address onPrepareMenu performance problem. When we move everything out of
3639     // view, we should rewrite this.
3640     private int mCurrentMenuState = 0;
3641     private int mMenuState = R.id.MAIN_MENU;
3642     private int mOldMenuState = EMPTY_MENU;
3643     private static final int EMPTY_MENU = -1;
3644     private Menu mMenu;
3645
3646     private FindDialog mFindDialog;
3647     // Used to prevent chording to result in firing two shortcuts immediately
3648     // one after another.  Fixes bug 1211714.
3649     boolean mCanChord;
3650
3651     private boolean mInLoad;
3652     private boolean mIsNetworkUp;
3653     private boolean mDidStopLoad;
3654
3655     private boolean mActivityInPause = true;
3656
3657     private boolean mMenuIsDown;
3658
3659     private static boolean mInTrace;
3660
3661     // Performance probe
3662     private static final int[] SYSTEM_CPU_FORMAT = new int[] {
3663             Process.PROC_SPACE_TERM | Process.PROC_COMBINE,
3664             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 1: user time
3665             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 2: nice time
3666             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 3: sys time
3667             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 4: idle time
3668             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 5: iowait time
3669             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 6: irq time
3670             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG  // 7: softirq time
3671     };
3672
3673     private long mStart;
3674     private long mProcessStart;
3675     private long mUserStart;
3676     private long mSystemStart;
3677     private long mIdleStart;
3678     private long mIrqStart;
3679
3680     private long mUiStart;
3681
3682     private Drawable    mMixLockIcon;
3683     private Drawable    mSecLockIcon;
3684
3685     /* hold a ref so we can auto-cancel if necessary */
3686     private AlertDialog mAlertDialog;
3687
3688     // Wait for credentials before loading google.com
3689     private ProgressDialog mCredsDlg;
3690
3691     // The up-to-date URL and title (these can be different from those stored
3692     // in WebView, since it takes some time for the information in WebView to
3693     // get updated)
3694     private String mUrl;
3695     private String mTitle;
3696
3697     // As PageInfo has different style for landscape / portrait, we have
3698     // to re-open it when configuration changed
3699     private AlertDialog mPageInfoDialog;
3700     private Tab mPageInfoView;
3701     // If the Page-Info dialog is launched from the SSL-certificate-on-error
3702     // dialog, we should not just dismiss it, but should get back to the
3703     // SSL-certificate-on-error dialog. This flag is used to store this state
3704     private Boolean mPageInfoFromShowSSLCertificateOnError;
3705
3706     // as SSLCertificateOnError has different style for landscape / portrait,
3707     // we have to re-open it when configuration changed
3708     private AlertDialog mSSLCertificateOnErrorDialog;
3709     private WebView mSSLCertificateOnErrorView;
3710     private SslErrorHandler mSSLCertificateOnErrorHandler;
3711     private SslError mSSLCertificateOnErrorError;
3712
3713     // as SSLCertificate has different style for landscape / portrait, we
3714     // have to re-open it when configuration changed
3715     private AlertDialog mSSLCertificateDialog;
3716     private Tab mSSLCertificateView;
3717
3718     // as HttpAuthentication has different style for landscape / portrait, we
3719     // have to re-open it when configuration changed
3720     private AlertDialog mHttpAuthenticationDialog;
3721     private HttpAuthHandler mHttpAuthHandler;
3722
3723     /*package*/ static final FrameLayout.LayoutParams COVER_SCREEN_PARAMS =
3724                                             new FrameLayout.LayoutParams(
3725                                             ViewGroup.LayoutParams.FILL_PARENT,
3726                                             ViewGroup.LayoutParams.FILL_PARENT);
3727     /*package*/ static final FrameLayout.LayoutParams COVER_SCREEN_GRAVITY_CENTER =
3728                                             new FrameLayout.LayoutParams(
3729                                             ViewGroup.LayoutParams.FILL_PARENT,
3730                                             ViewGroup.LayoutParams.FILL_PARENT,
3731                                             Gravity.CENTER);
3732     // Google search
3733     final static String QuickSearch_G = "http://www.google.com/m?q=%s";
3734     // Wikipedia search
3735     final static String QuickSearch_W = "http://en.wikipedia.org/w/index.php?search=%s&go=Go";
3736     // Dictionary search
3737     final static String QuickSearch_D = "http://dictionary.reference.com/search?q=%s";
3738     // Google Mobile Local search
3739     final static String QuickSearch_L = "http://www.google.com/m/search?site=local&q=%s&near=mountain+view";
3740
3741     final static String QUERY_PLACE_HOLDER = "%s";
3742
3743     // "source" parameter for Google search through search key
3744     final static String GOOGLE_SEARCH_SOURCE_SEARCHKEY = "browser-key";
3745     // "source" parameter for Google search through goto menu
3746     final static String GOOGLE_SEARCH_SOURCE_GOTO = "browser-goto";
3747     // "source" parameter for Google search through simplily type
3748     final static String GOOGLE_SEARCH_SOURCE_TYPE = "browser-type";
3749     // "source" parameter for Google search suggested by the browser
3750     final static String GOOGLE_SEARCH_SOURCE_SUGGEST = "browser-suggest";
3751     // "source" parameter for Google search from unknown source
3752     final static String GOOGLE_SEARCH_SOURCE_UNKNOWN = "unknown";
3753
3754     private final static String LOGTAG = "browser";
3755
3756     private String mLastEnteredUrl;
3757
3758     private PowerManager.WakeLock mWakeLock;
3759     private final static int WAKELOCK_TIMEOUT = 5 * 60 * 1000; // 5 minutes
3760
3761     private Toast mStopToast;
3762
3763     private TitleBar mTitleBar;
3764
3765     private LinearLayout mErrorConsoleContainer = null;
3766     private boolean mShouldShowErrorConsole = false;
3767
3768     // As the ids are dynamically created, we can't guarantee that they will
3769     // be in sequence, so this static array maps ids to a window number.
3770     final static private int[] WINDOW_SHORTCUT_ID_ARRAY =
3771     { R.id.window_one_menu_id, R.id.window_two_menu_id, R.id.window_three_menu_id,
3772       R.id.window_four_menu_id, R.id.window_five_menu_id, R.id.window_six_menu_id,
3773       R.id.window_seven_menu_id, R.id.window_eight_menu_id };
3774
3775     // monitor platform changes
3776     private IntentFilter mNetworkStateChangedFilter;
3777     private BroadcastReceiver mNetworkStateIntentReceiver;
3778
3779     private BroadcastReceiver mPackageInstallationReceiver;
3780
3781     // activity requestCode
3782     final static int COMBO_PAGE                 = 1;
3783     final static int DOWNLOAD_PAGE              = 2;
3784     final static int PREFERENCES_PAGE           = 3;
3785     final static int FILE_SELECTED              = 4;
3786
3787     // the default <video> poster
3788     private Bitmap mDefaultVideoPoster;
3789     // the video progress view
3790     private View mVideoProgressView;
3791
3792     /**
3793      * A UrlData class to abstract how the content will be set to WebView.
3794      * This base class uses loadUrl to show the content.
3795      */
3796     private static class UrlData {
3797         String mUrl;
3798         byte[] mPostData;
3799
3800         UrlData(String url) {
3801             this.mUrl = url;
3802         }
3803
3804         void setPostData(byte[] postData) {
3805             mPostData = postData;
3806         }
3807
3808         boolean isEmpty() {
3809             return mUrl == null || mUrl.length() == 0;
3810         }
3811
3812         public void loadIn(WebView webView) {
3813             if (mPostData != null) {
3814                 webView.postUrl(mUrl, mPostData);
3815             } else {
3816                 webView.loadUrl(mUrl);
3817             }
3818         }
3819     };
3820
3821     /**
3822      * A subclass of UrlData class that can display inlined content using
3823      * {@link WebView#loadDataWithBaseURL(String, String, String, String, String)}.
3824      */
3825     private static class InlinedUrlData extends UrlData {
3826         InlinedUrlData(String inlined, String mimeType, String encoding, String failUrl) {
3827             super(failUrl);
3828             mInlined = inlined;
3829             mMimeType = mimeType;
3830             mEncoding = encoding;
3831         }
3832         String mMimeType;
3833         String mInlined;
3834         String mEncoding;
3835         @Override
3836         boolean isEmpty() {
3837             return mInlined == null || mInlined.length() == 0 || super.isEmpty();
3838         }
3839
3840         @Override
3841         public void loadIn(WebView webView) {
3842             webView.loadDataWithBaseURL(null, mInlined, mMimeType, mEncoding, mUrl);
3843         }
3844     }
3845
3846     /* package */ static final UrlData EMPTY_URL_DATA = new UrlData(null);
3847 }