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.DownloadManager;
  22 import android.app.ProgressDialog;
  23 import android.app.SearchManager;
  24 import android.content.ActivityNotFoundException;
  25 import android.content.BroadcastReceiver;
  26 import android.content.ComponentName;
  27 import android.content.ContentProvider;
  28 import android.content.ContentProviderClient;
  29 import android.content.ContentResolver;
  30 import android.content.ContentUris;
  31 import android.content.ContentValues;
  32 import android.content.Context;
  33 import android.content.DialogInterface;
  34 import android.content.Intent;
  35 import android.content.IntentFilter;
  36 import android.content.pm.PackageInfo;
  37 import android.content.pm.PackageManager;
  38 import android.content.pm.ResolveInfo;
  39 import android.content.res.Configuration;
  40 import android.content.res.Resources;
  41 import android.database.Cursor;
  42 import android.database.DatabaseUtils;
  43 import android.graphics.Bitmap;
  44 import android.graphics.BitmapFactory;
  45 import android.graphics.Canvas;
  46 import android.graphics.Picture;
  47 import android.graphics.PixelFormat;
  48 import android.graphics.Rect;
  49 import android.graphics.drawable.Drawable;
  50 import android.net.ConnectivityManager;
  51 import android.net.NetworkInfo;
  52 import android.net.Uri;
  53 import android.net.WebAddress;
  54 import android.net.http.SslCertificate;
  55 import android.net.http.SslError;
  56 import android.os.AsyncTask;
  57 import android.os.Bundle;
  58 import android.os.Debug;
  59 import android.os.Environment;
  60 import android.os.Handler;
  61 import android.os.Message;
  62 import android.os.PowerManager;
  63 import android.os.Process;
  64 import android.os.ServiceManager;
  65 import android.os.SystemClock;
  66 import android.provider.Browser;
  67 import android.provider.ContactsContract;
  68 import android.provider.ContactsContract.Intents.Insert;
  69 import android.provider.Downloads;
  70 import android.provider.MediaStore;
  71 import android.speech.RecognizerResultsIntent;
  72 import android.text.IClipboard;
  73 import android.text.TextUtils;
  74 import android.text.format.DateFormat;
  75 import android.util.AttributeSet;
  76 import android.util.Log;
  77 import android.util.Patterns;
  78 import android.view.ContextMenu;
  79 import android.view.Gravity;
  80 import android.view.KeyEvent;
  81 import android.view.LayoutInflater;
  82 import android.view.Menu;
  83 import android.view.MenuInflater;
  84 import android.view.MenuItem;
  85 import android.view.View;
  86 import android.view.ViewGroup;
  87 import android.view.Window;
  88 import android.view.WindowManager;
  89 import android.view.ContextMenu.ContextMenuInfo;
  90 import android.view.MenuItem.OnMenuItemClickListener;
  91 import android.webkit.CookieManager;
  92 import android.webkit.CookieSyncManager;
  93 import android.webkit.DownloadListener;
  94 import android.webkit.HttpAuthHandler;
  95 import android.webkit.PluginManager;
  96 import android.webkit.SslErrorHandler;
  97 import android.webkit.URLUtil;
  98 import android.webkit.ValueCallback;
  99 import android.webkit.WebChromeClient;
 100 import android.webkit.WebHistoryItem;
 101 import android.webkit.WebIconDatabase;
 102 import android.webkit.WebView;
 103 import android.widget.EditText;
 104 import android.widget.FrameLayout;
 105 import android.widget.LinearLayout;
 106 import android.widget.TextView;
 107 import android.widget.Toast;
 108 import android.accounts.Account;
 109 import android.accounts.AccountManager;
 110 import android.accounts.AccountManagerFuture;
 111 import android.accounts.AuthenticatorException;
 112 import android.accounts.OperationCanceledException;
 113 import android.accounts.AccountManagerCallback;
 114
 115 import com.android.browser.search.SearchEngine;
 116 import com.android.common.Search;
 117 import com.android.common.speech.LoggingEvents;
 118
 119 import java.io.ByteArrayOutputStream;
 120 import java.io.File;
 121 import java.io.IOException;
 122 import java.io.InputStream;
 123 import java.net.MalformedURLException;
 124 import java.net.URI;
 125 import java.net.URISyntaxException;
 126 import java.net.URL;
 127 import java.net.URLEncoder;
 128 import java.text.ParseException;
 129 import java.util.Date;
 130 import java.util.HashMap;
 131 import java.util.HashSet;
 132 import java.util.Iterator;
 133 import java.util.List;
 134 import java.util.Map;
 135 import java.util.Set;
 136 import java.util.regex.Matcher;
 137 import java.util.regex.Pattern;
 138
 139 public class BrowserActivity extends Activity
 140     implements View.OnCreateContextMenuListener, DownloadListener {
 141
 142     /* Define some aliases to make these debugging flags easier to refer to.
 143      * This file imports android.provider.Browser, so we can't just refer to "Browser.DEBUG".
 144      */
 145     private final static boolean DEBUG = com.android.browser.Browser.DEBUG;
 146     private final static boolean LOGV_ENABLED = com.android.browser.Browser.LOGV_ENABLED;
 147     private final static boolean LOGD_ENABLED = com.android.browser.Browser.LOGD_ENABLED;
 148
 149     private static class ClearThumbnails extends AsyncTask<File, Void, Void> {
 150         @Override
 151         public Void doInBackground(File... files) {
 152             if (files != null) {
 153                 for (File f : files) {
 154                     if (!f.delete()) {
 155                       Log.e(LOGTAG, f.getPath() + " was not deleted");
 156                     }
 157                 }
 158             }
 159             return null;
 160         }
 161     }
 162
 163     /**
 164      * This layout holds everything you see below the status bar, including the
 165      * error console, the custom view container, and the webviews.
 166      */
 167     private FrameLayout mBrowserFrameLayout;
 168
 169     @Override
 170     public void onCreate(Bundle icicle) {
 171         if (LOGV_ENABLED) {
 172             Log.v(LOGTAG, this + " onStart");
 173         }
 174         super.onCreate(icicle);
 175         // test the browser in OpenGL
 176         // requestWindowFeature(Window.FEATURE_OPENGL);
 177
 178         // enable this to test the browser in 32bit
 179         if (false) {
 180             getWindow().setFormat(PixelFormat.RGBX_8888);
 181             BitmapFactory.setDefaultConfig(Bitmap.Config.ARGB_8888);
 182         }
 183
 184         setDefaultKeyMode(DEFAULT_KEYS_SEARCH_LOCAL);
 185
 186         mResolver = getContentResolver();
 187
 188         // Keep a settings instance handy.
 189         mSettings = BrowserSettings.getInstance();
 190
 191         mSettings.updateRlzValues(this);
 192
 193         // If this was a web search request, pass it on to the default web
 194         // search provider and finish this activity.
 195         if (handleWebSearchIntent(getIntent())) {
 196             finish();
 197             return;
 198         }
 199
 200         mSecLockIcon = Resources.getSystem().getDrawable(
 201                 android.R.drawable.ic_secure);
 202         mMixLockIcon = Resources.getSystem().getDrawable(
 203                 android.R.drawable.ic_partial_secure);
 204
 205         FrameLayout frameLayout = (FrameLayout) getWindow().getDecorView()
 206                 .findViewById(com.android.internal.R.id.content);
 207         mBrowserFrameLayout = (FrameLayout) LayoutInflater.from(this)
 208                 .inflate(R.layout.custom_screen, null);
 209         mContentView = (FrameLayout) mBrowserFrameLayout.findViewById(
 210                 R.id.main_content);
 211         mErrorConsoleContainer = (LinearLayout) mBrowserFrameLayout
 212                 .findViewById(R.id.error_console);
 213         mCustomViewContainer = (FrameLayout) mBrowserFrameLayout
 214                 .findViewById(R.id.fullscreen_custom_content);
 215         frameLayout.addView(mBrowserFrameLayout, COVER_SCREEN_PARAMS);
 216         mTitleBar = new TitleBar(this);
 217         // mTitleBar will be always shown in the fully loaded mode
 218         mTitleBar.setProgress(100);
 219         mFakeTitleBar = new TitleBar(this);
 220
 221         // Create the tab control and our initial tab
 222         mTabControl = new TabControl(this);
 223
 224         // Open the icon database and retain all the bookmark urls for favicons
 225         retainIconsOnStartup();
 226
 227         mSettings.setTabControl(mTabControl);
 228
 229         PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 230         mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "Browser");
 231
 232         // Find out if the network is currently up.
 233         ConnectivityManager cm = (ConnectivityManager) getSystemService(
 234                 Context.CONNECTIVITY_SERVICE);
 235         NetworkInfo info = cm.getActiveNetworkInfo();
 236         if (info != null) {
 237             mIsNetworkUp = info.isAvailable();
 238         }
 239
 240         /* enables registration for changes in network status from
 241            http stack */
 242         mNetworkStateChangedFilter = new IntentFilter();
 243         mNetworkStateChangedFilter.addAction(
 244                 ConnectivityManager.CONNECTIVITY_ACTION);
 245         mNetworkStateIntentReceiver = new BroadcastReceiver() {
 246                 @Override
 247                 public void onReceive(Context context, Intent intent) {
 248                     if (intent.getAction().equals(
 249                             ConnectivityManager.CONNECTIVITY_ACTION)) {
 250
 251                         NetworkInfo info = intent.getParcelableExtra(
 252                                 ConnectivityManager.EXTRA_NETWORK_INFO);
 253                         String typeName = info.getTypeName();
 254                         String subtypeName = info.getSubtypeName();
 255                         sendNetworkType(typeName.toLowerCase(),
 256                                 (subtypeName != null ? subtypeName.toLowerCase() : ""));
 257
 258                         onNetworkToggle(info.isAvailable());
 259                     }
 260                 }
 261             };
 262
 263         IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);
 264         filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
 265         filter.addDataScheme("package");
 266         mPackageInstallationReceiver = new BroadcastReceiver() {
 267             @Override
 268             public void onReceive(Context context, Intent intent) {
 269                 final String action = intent.getAction();
 270                 final String packageName = intent.getData()
 271                         .getSchemeSpecificPart();
 272                 final boolean replacing = intent.getBooleanExtra(
 273                         Intent.EXTRA_REPLACING, false);
 274                 if (Intent.ACTION_PACKAGE_REMOVED.equals(action) && replacing) {
 275                     // if it is replacing, refreshPlugins() when adding
 276                     return;
 277                 }
 278
 279                 if (sGoogleApps.contains(packageName)) {
 280                     BrowserActivity.this.packageChanged(packageName,
 281                             Intent.ACTION_PACKAGE_ADDED.equals(action));
 282                 }
 283
 284                 PackageManager pm = BrowserActivity.this.getPackageManager();
 285                 PackageInfo pkgInfo = null;
 286                 try {
 287                     pkgInfo = pm.getPackageInfo(packageName,
 288                             PackageManager.GET_PERMISSIONS);
 289                 } catch (PackageManager.NameNotFoundException e) {
 290                     return;
 291                 }
 292                 if (pkgInfo != null) {
 293                     String permissions[] = pkgInfo.requestedPermissions;
 294                     if (permissions == null) {
 295                         return;
 296                     }
 297                     boolean permissionOk = false;
 298                     for (String permit : permissions) {
 299                         if (PluginManager.PLUGIN_PERMISSION.equals(permit)) {
 300                             permissionOk = true;
 301                             break;
 302                         }
 303                     }
 304                     if (permissionOk) {
 305                         PluginManager.getInstance(BrowserActivity.this)
 306                                 .refreshPlugins(
 307                                         Intent.ACTION_PACKAGE_ADDED
 308                                                 .equals(action));
 309                     }
 310                 }
 311             }
 312         };
 313         registerReceiver(mPackageInstallationReceiver, filter);
 314
 315         if (!mTabControl.restoreState(icicle)) {
 316             // clear up the thumbnail directory if we can't restore the state as
 317             // none of the files in the directory are referenced any more.
 318             new ClearThumbnails().execute(
 319                     mTabControl.getThumbnailDir().listFiles());
 320             // there is no quit on Android. But if we can't restore the state,
 321             // we can treat it as a new Browser, remove the old session cookies.
 322             CookieManager.getInstance().removeSessionCookie();
 323             final Intent intent = getIntent();
 324             final Bundle extra = intent.getExtras();
 325             // Create an initial tab.
 326             // If the intent is ACTION_VIEW and data is not null, the Browser is
 327             // invoked to view the content by another application. In this case,
 328             // the tab will be close when exit.
 329             UrlData urlData = getUrlDataFromIntent(intent);
 330
 331             String action = intent.getAction();
 332             final Tab t = mTabControl.createNewTab(
 333                     (Intent.ACTION_VIEW.equals(action) &&
 334                     intent.getData() != null)
 335                     || RecognizerResultsIntent.ACTION_VOICE_SEARCH_RESULTS
 336                     .equals(action),
 337                     intent.getStringExtra(Browser.EXTRA_APPLICATION_ID), urlData.mUrl);
 338             mTabControl.setCurrentTab(t);
 339             attachTabToContentView(t);
 340             WebView webView = t.getWebView();
 341             if (extra != null) {
 342                 int scale = extra.getInt(Browser.INITIAL_ZOOM_LEVEL, 0);
 343                 if (scale > 0 && scale <= 1000) {
 344                     webView.setInitialScale(scale);
 345                 }
 346             }
 347
 348             if (urlData.isEmpty()) {
 349                 loadUrl(webView, mSettings.getHomePage());
 350             } else {
 351                 loadUrlDataIn(t, urlData);
 352             }
 353         } else {
 354             // TabControl.restoreState() will create a new tab even if
 355             // restoring the state fails.
 356             attachTabToContentView(mTabControl.getCurrentTab());
 357         }
 358
 359         // Delete old thumbnails to save space
 360         File dir = mTabControl.getThumbnailDir();
 361         if (dir.exists()) {
 362             for (String child : dir.list()) {
 363                 File f = new File(dir, child);
 364                 f.delete();
 365             }
 366         }
 367
 368         // Read JavaScript flags if it exists.
 369         String jsFlags = mSettings.getJsFlags();
 370         if (jsFlags.trim().length() != 0) {
 371             mTabControl.getCurrentWebView().setJsFlags(jsFlags);
 372         }
 373         // Work out which packages are installed on the system.
 374         getInstalledPackages();
 375
 376         // Start watching the default geolocation permissions
 377         mSystemAllowGeolocationOrigins
 378                 = new SystemAllowGeolocationOrigins(getApplicationContext());
 379         mSystemAllowGeolocationOrigins.start();
 380     }
 381
 382     /**
 383      * Feed the previously stored results strings to the BrowserProvider so that
 384      * the SearchDialog will show them instead of the standard searches.
 385      * @param result String to show on the editable line of the SearchDialog.
 386      */
 387     /* package */ void showVoiceSearchResults(String result) {
 388         ContentProviderClient client = mResolver.acquireContentProviderClient(
 389                 Browser.BOOKMARKS_URI);
 390         ContentProvider prov = client.getLocalContentProvider();
 391         BrowserProvider bp = (BrowserProvider) prov;
 392         bp.setQueryResults(mTabControl.getCurrentTab().getVoiceSearchResults());
 393         client.release();
 394
 395         Bundle bundle = createGoogleSearchSourceBundle(
 396                 GOOGLE_SEARCH_SOURCE_SEARCHKEY);
 397         bundle.putBoolean(SearchManager.CONTEXT_IS_VOICE, true);
 398         startSearch(result, false, bundle, false);
 399     }
 400
 401     @Override
 402     protected void onNewIntent(Intent intent) {
 403         Tab current = mTabControl.getCurrentTab();
 404         // When a tab is closed on exit, the current tab index is set to -1.
 405         // Reset before proceed as Browser requires the current tab to be set.
 406         if (current == null) {
 407             // Try to reset the tab in case the index was incorrect.
 408             current = mTabControl.getTab(0);
 409             if (current == null) {
 410                 // No tabs at all so just ignore this intent.
 411                 return;
 412             }
 413             mTabControl.setCurrentTab(current);
 414             attachTabToContentView(current);
 415             resetTitleAndIcon(current.getWebView());
 416         }
 417         final String action = intent.getAction();
 418         final int flags = intent.getFlags();
 419         if (Intent.ACTION_MAIN.equals(action) ||
 420                 (flags & Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY) != 0) {
 421             // just resume the browser
 422             return;
 423         }
 424         // In case the SearchDialog is open.
 425         ((SearchManager) getSystemService(Context.SEARCH_SERVICE))
 426                 .stopSearch();
 427         boolean activateVoiceSearch = RecognizerResultsIntent
 428                 .ACTION_VOICE_SEARCH_RESULTS.equals(action);
 429         if (Intent.ACTION_VIEW.equals(action)
 430                 || Intent.ACTION_SEARCH.equals(action)
 431                 || MediaStore.INTENT_ACTION_MEDIA_SEARCH.equals(action)
 432                 || Intent.ACTION_WEB_SEARCH.equals(action)
 433                 || activateVoiceSearch) {
 434             if (current.isInVoiceSearchMode()) {
 435                 String title = current.getVoiceDisplayTitle();
 436                 if (title != null && title.equals(intent.getStringExtra(
 437                         SearchManager.QUERY))) {
 438                     // The user submitted the same search as the last voice
 439                     // search, so do nothing.
 440                     return;
 441                 }
 442                 if (Intent.ACTION_SEARCH.equals(action)
 443                         && current.voiceSearchSourceIsGoogle()) {
 444                     Intent logIntent = new Intent(
 445                             LoggingEvents.ACTION_LOG_EVENT);
 446                     logIntent.putExtra(LoggingEvents.EXTRA_EVENT,
 447                             LoggingEvents.VoiceSearch.QUERY_UPDATED);
 448                     logIntent.putExtra(
 449                             LoggingEvents.VoiceSearch.EXTRA_QUERY_UPDATED_VALUE,
 450                             intent.getDataString());
 451                     sendBroadcast(logIntent);
 452                     // Note, onPageStarted will revert the voice title bar
 453                     // When http://b/issue?id=2379215 is fixed, we should update
 454                     // the title bar here.
 455                 }
 456             }
 457             // If this was a search request (e.g. search query directly typed into the address bar),
 458             // pass it on to the default web search provider.
 459             if (handleWebSearchIntent(intent)) {
 460                 return;
 461             }
 462
 463             UrlData urlData = getUrlDataFromIntent(intent);
 464             if (urlData.isEmpty()) {
 465                 urlData = new UrlData(mSettings.getHomePage());
 466             }
 467
 468             final String appId = intent
 469                     .getStringExtra(Browser.EXTRA_APPLICATION_ID);
 470             if (!TextUtils.isEmpty(urlData.mUrl) &&
 471                     urlData.mUrl.startsWith("javascript:")) {
 472                 // Always open javascript: URIs in new tabs
 473                 openTabAndShow(urlData, true, appId);
 474                 return;
 475             }
 476             if ((Intent.ACTION_VIEW.equals(action)
 477                     // If a voice search has no appId, it means that it came
 478                     // from the browser.  In that case, reuse the current tab.
 479                     || (activateVoiceSearch && appId != null))
 480                     && !getPackageName().equals(appId)
 481                     && (flags & Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT) != 0) {
 482                 Tab appTab = mTabControl.getTabFromId(appId);
 483                 if (appTab != null) {
 484                     Log.i(LOGTAG, "Reusing tab for " + appId);
 485                     // Dismiss the subwindow if applicable.
 486                     dismissSubWindow(appTab);
 487                     // Since we might kill the WebView, remove it from the
 488                     // content view first.
 489                     removeTabFromContentView(appTab);
 490                     // Recreate the main WebView after destroying the old one.
 491                     // If the WebView has the same original url and is on that
 492                     // page, it can be reused.
 493                     boolean needsLoad =
 494                             mTabControl.recreateWebView(appTab, urlData);
 495
 496                     if (current != appTab) {
 497                         switchToTab(mTabControl.getTabIndex(appTab));
 498                         if (needsLoad) {
 499                             loadUrlDataIn(appTab, urlData);
 500                         }
 501                     } else {
 502                         // If the tab was the current tab, we have to attach
 503                         // it to the view system again.
 504                         attachTabToContentView(appTab);
 505                         if (needsLoad) {
 506                             loadUrlDataIn(appTab, urlData);
 507                         }
 508                     }
 509                     return;
 510                 } else {
 511                     // No matching application tab, try to find a regular tab
 512                     // with a matching url.
 513                     appTab = mTabControl.findUnusedTabWithUrl(urlData.mUrl);
 514                     if (appTab != null) {
 515                         if (current != appTab) {
 516                             switchToTab(mTabControl.getTabIndex(appTab));
 517                         }
 518                         // Otherwise, we are already viewing the correct tab.
 519                     } else {
 520                         // if FLAG_ACTIVITY_BROUGHT_TO_FRONT flag is on, the url
 521                         // will be opened in a new tab unless we have reached
 522                         // MAX_TABS. Then the url will be opened in the current
 523                         // tab. If a new tab is created, it will have "true" for
 524                         // exit on close.
 525                         openTabAndShow(urlData, true, appId);
 526                     }
 527                 }
 528             } else {
 529                 if (!urlData.isEmpty()
 530                         && urlData.mUrl.startsWith("about:debug")) {
 531                     if ("about:debug.dom".equals(urlData.mUrl)) {
 532                         current.getWebView().dumpDomTree(false);
 533                     } else if ("about:debug.dom.file".equals(urlData.mUrl)) {
 534                         current.getWebView().dumpDomTree(true);
 535                     } else if ("about:debug.render".equals(urlData.mUrl)) {
 536                         current.getWebView().dumpRenderTree(false);
 537                     } else if ("about:debug.render.file".equals(urlData.mUrl)) {
 538                         current.getWebView().dumpRenderTree(true);
 539                     } else if ("about:debug.display".equals(urlData.mUrl)) {
 540                         current.getWebView().dumpDisplayTree();
 541                     } else if (urlData.mUrl.startsWith("about:debug.drag")) {
 542                         int index = urlData.mUrl.codePointAt(16) - '0';
 543                         if (index <= 0 || index > 9) {
 544                             current.getWebView().setDragTracker(null);
 545                         } else {
 546                             current.getWebView().setDragTracker(new MeshTracker(index));
 547                         }
 548                     } else {
 549                         mSettings.toggleDebugSettings();
 550                     }
 551                     return;
 552                 }
 553                 // Get rid of the subwindow if it exists
 554                 dismissSubWindow(current);
 555                 // If the current Tab is being used as an application tab,
 556                 // remove the association, since the new Intent means that it is
 557                 // no longer associated with that application.
 558                 current.setAppId(null);
 559                 loadUrlDataIn(current, urlData);
 560             }
 561         }
 562     }
 563
 564     /**
 565      * Launches the default web search activity with the query parameters if the given intent's data
 566      * are identified as plain search terms and not URLs/shortcuts.
 567      * @return true if the intent was handled and web search activity was launched, false if not.
 568      */
 569     private boolean handleWebSearchIntent(Intent intent) {
 570         if (intent == null) return false;
 571
 572         String url = null;
 573         final String action = intent.getAction();
 574         if (RecognizerResultsIntent.ACTION_VOICE_SEARCH_RESULTS.equals(
 575                 action)) {
 576             return false;
 577         }
 578         if (Intent.ACTION_VIEW.equals(action)) {
 579             Uri data = intent.getData();
 580             if (data != null) url = data.toString();
 581         } else if (Intent.ACTION_SEARCH.equals(action)
 582                 || MediaStore.INTENT_ACTION_MEDIA_SEARCH.equals(action)
 583                 || Intent.ACTION_WEB_SEARCH.equals(action)) {
 584             url = intent.getStringExtra(SearchManager.QUERY);
 585         }
 586         return handleWebSearchRequest(url, intent.getBundleExtra(SearchManager.APP_DATA),
 587                 intent.getStringExtra(SearchManager.EXTRA_DATA_KEY));
 588     }
 589
 590     /**
 591      * Launches the default web search activity with the query parameters if the given url string
 592      * was identified as plain search terms and not URL/shortcut.
 593      * @return true if the request was handled and web search activity was launched, false if not.
 594      */
 595     private boolean handleWebSearchRequest(String inUrl, Bundle appData, String extraData) {
 596         if (inUrl == null) return false;
 597
 598         // In general, we shouldn't modify URL from Intent.
 599         // But currently, we get the user-typed URL from search box as well.
 600         String url = fixUrl(inUrl).trim();
 601
 602         // URLs are handled by the regular flow of control, so
 603         // return early.
 604         if (Patterns.WEB_URL.matcher(url).matches()
 605                 || ACCEPTED_URI_SCHEMA.matcher(url).matches()) {
 606             return false;
 607         }
 608
 609         final ContentResolver cr = mResolver;
 610         final String newUrl = url;
 611         new AsyncTask<Void, Void, Void>() {
 612             protected Void doInBackground(Void... unused) {
 613                 Browser.updateVisitedHistory(cr, newUrl, false);
 614                 Browser.addSearchUrl(cr, newUrl);
 615                 return null;
 616             }
 617         }.execute();
 618
 619         SearchEngine searchEngine = mSettings.getSearchEngine();
 620         if (searchEngine == null) return false;
 621         searchEngine.startSearch(this, url, appData, extraData);
 622
 623         return true;
 624     }
 625
 626     private UrlData getUrlDataFromIntent(Intent intent) {
 627         String url = "";
 628         Map<String, String> headers = null;
 629         if (intent != null) {
 630             final String action = intent.getAction();
 631             if (Intent.ACTION_VIEW.equals(action)) {
 632                 url = smartUrlFilter(intent.getData());
 633                 if (url != null && url.startsWith("http")) {
 634                     final Bundle pairs = intent
 635                             .getBundleExtra(Browser.EXTRA_HEADERS);
 636                     if (pairs != null && !pairs.isEmpty()) {
 637                         Iterator<String> iter = pairs.keySet().iterator();
 638                         headers = new HashMap<String, String>();
 639                         while (iter.hasNext()) {
 640                             String key = iter.next();
 641                             headers.put(key, pairs.getString(key));
 642                         }
 643                     }
 644
 645                     // AppId will be set to the Browser for Search Bar initiated searches
 646                     final String appId = intent.getStringExtra(Browser.EXTRA_APPLICATION_ID);
 647                     if (getPackageName().equals(appId)) {
 648                         String rlz = mSettings.getRlzValue();
 649                         Uri uri = Uri.parse(url);
 650                         if (!rlz.isEmpty() && needsRlz(uri)) {
 651                             Uri rlzUri = addRlzParameter(uri, rlz);
 652                             url = rlzUri.toString();
 653                         }
 654                     }
 655                 }
 656             } else if (Intent.ACTION_SEARCH.equals(action)
 657                     || MediaStore.INTENT_ACTION_MEDIA_SEARCH.equals(action)
 658                     || Intent.ACTION_WEB_SEARCH.equals(action)) {
 659                 url = intent.getStringExtra(SearchManager.QUERY);
 660                 if (url != null) {
 661                     mLastEnteredUrl = url;
 662                     // In general, we shouldn't modify URL from Intent.
 663                     // But currently, we get the user-typed URL from search box as well.
 664                     url = fixUrl(url);
 665                     url = smartUrlFilter(url);
 666                     final ContentResolver cr = mResolver;
 667                     final String newUrl = url;
 668                     new AsyncTask<Void, Void, Void>() {
 669                         protected Void doInBackground(Void... unused) {
 670                             Browser.updateVisitedHistory(cr, newUrl, false);
 671                             return null;
 672                         }
 673                     }.execute();
 674                     String searchSource = "&source=android-" + GOOGLE_SEARCH_SOURCE_SUGGEST + "&";
 675                     if (url.contains(searchSource)) {
 676                         String source = null;
 677                         final Bundle appData = intent.getBundleExtra(SearchManager.APP_DATA);
 678                         if (appData != null) {
 679                             source = appData.getString(Search.SOURCE);
 680                         }
 681                         if (TextUtils.isEmpty(source)) {
 682                             source = GOOGLE_SEARCH_SOURCE_UNKNOWN;
 683                         }
 684                         url = url.replace(searchSource, "&source=android-"+source+"&");
 685                     }
 686                 }
 687             }
 688         }
 689         return new UrlData(url, headers, intent);
 690     }
 691     /* package */ void showVoiceTitleBar(String title) {
 692         mTitleBar.setInVoiceMode(true);
 693         mFakeTitleBar.setInVoiceMode(true);
 694
 695         mTitleBar.setDisplayTitle(title);
 696         mFakeTitleBar.setDisplayTitle(title);
 697     }
 698     /* package */ void revertVoiceTitleBar() {
 699         mTitleBar.setInVoiceMode(false);
 700         mFakeTitleBar.setInVoiceMode(false);
 701
 702         mTitleBar.setDisplayTitle(mUrl);
 703         mFakeTitleBar.setDisplayTitle(mUrl);
 704     }
 705     /* package */ static String fixUrl(String inUrl) {
 706         // FIXME: Converting the url to lower case
 707         // duplicates functionality in smartUrlFilter().
 708         // However, changing all current callers of fixUrl to
 709         // call smartUrlFilter in addition may have unwanted
 710         // consequences, and is deferred for now.
 711         int colon = inUrl.indexOf(':');
 712         boolean allLower = true;
 713         for (int index = 0; index < colon; index++) {
 714             char ch = inUrl.charAt(index);
 715             if (!Character.isLetter(ch)) {
 716                 break;
 717             }
 718             allLower &= Character.isLowerCase(ch);
 719             if (index == colon - 1 && !allLower) {
 720                 inUrl = inUrl.substring(0, colon).toLowerCase()
 721                         + inUrl.substring(colon);
 722             }
 723         }
 724         if (inUrl.startsWith("http://") || inUrl.startsWith("https://"))
 725             return inUrl;
 726         if (inUrl.startsWith("http:") ||
 727                 inUrl.startsWith("https:")) {
 728             if (inUrl.startsWith("http:/") || inUrl.startsWith("https:/")) {
 729                 inUrl = inUrl.replaceFirst("/", "//");
 730             } else inUrl = inUrl.replaceFirst(":", "://");
 731         }
 732         return inUrl;
 733     }
 734
 735     @Override
 736     protected void onResume() {
 737         super.onResume();
 738         if (LOGV_ENABLED) {
 739             Log.v(LOGTAG, "BrowserActivity.onResume: this=" + this);
 740         }
 741
 742         if (!mActivityInPause) {
 743             Log.e(LOGTAG, "BrowserActivity is already resumed.");
 744             return;
 745         }
 746
 747         mTabControl.resumeCurrentTab();
 748         mActivityInPause = false;
 749         resumeWebViewTimers();
 750
 751         if (mWakeLock.isHeld()) {
 752             mHandler.removeMessages(RELEASE_WAKELOCK);
 753             mWakeLock.release();
 754         }
 755
 756         registerReceiver(mNetworkStateIntentReceiver,
 757                          mNetworkStateChangedFilter);
 758         WebView.enablePlatformNotifications();
 759     }
 760
 761     /**
 762      * Since the actual title bar is embedded in the WebView, and removing it
 763      * would change its appearance, use a different TitleBar to show overlayed
 764      * at the top of the screen, when the menu is open or the page is loading.
 765      */
 766     private TitleBar mFakeTitleBar;
 767
 768     /**
 769      * Keeps track of whether the options menu is open.  This is important in
 770      * determining whether to show or hide the title bar overlay.
 771      */
 772     private boolean mOptionsMenuOpen;
 773
 774     /**
 775      * Only meaningful when mOptionsMenuOpen is true.  This variable keeps track
 776      * of whether the configuration has changed.  The first onMenuOpened call
 777      * after a configuration change is simply a reopening of the same menu
 778      * (i.e. mIconView did not change).
 779      */
 780     private boolean mConfigChanged;
 781
 782     /**
 783      * Whether or not the options menu is in its smaller, icon menu form.  When
 784      * true, we want the title bar overlay to be up.  When false, we do not.
 785      * Only meaningful if mOptionsMenuOpen is true.
 786      */
 787     private boolean mIconView;
 788
 789     @Override
 790     public boolean onMenuOpened(int featureId, Menu menu) {
 791         if (Window.FEATURE_OPTIONS_PANEL == featureId) {
 792             if (mOptionsMenuOpen) {
 793                 if (mConfigChanged) {
 794                     // We do not need to make any changes to the state of the
 795                     // title bar, since the only thing that happened was a
 796                     // change in orientation
 797                     mConfigChanged = false;
 798                 } else {
 799                     if (mIconView) {
 800                         // Switching the menu to expanded view, so hide the
 801                         // title bar.
 802                         hideFakeTitleBar();
 803                         mIconView = false;
 804                     } else {
 805                         // Switching the menu back to icon view, so show the
 806                         // title bar once again.
 807                         showFakeTitleBar();
 808                         mIconView = true;
 809                     }
 810                 }
 811             } else {
 812                 // The options menu is closed, so open it, and show the title
 813                 showFakeTitleBar();
 814                 mOptionsMenuOpen = true;
 815                 mConfigChanged = false;
 816                 mIconView = true;
 817             }
 818         }
 819         return true;
 820     }
 821
 822     private void showFakeTitleBar() {
 823         if (mFakeTitleBar.getParent() == null && mActiveTabsPage == null
 824                 && !mActivityInPause) {
 825             WebView mainView = mTabControl.getCurrentWebView();
 826             // if there is no current WebView, don't show the faked title bar;
 827             if (mainView == null) {
 828                 return;
 829             }
 830             // Do not need to check for null, since the current tab will have
 831             // at least a main WebView, or we would have returned above.
 832             if (dialogIsUp()) {
 833                 // Do not show the fake title bar, which would cover up the
 834                 // find or select dialog.
 835                 return;
 836             }
 837
 838             WindowManager manager
 839                     = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
 840
 841             // Add the title bar to the window manager so it can receive touches
 842             // while the menu is up
 843             WindowManager.LayoutParams params
 844                     = new WindowManager.LayoutParams(
 845                     ViewGroup.LayoutParams.MATCH_PARENT,
 846                     ViewGroup.LayoutParams.WRAP_CONTENT,
 847                     WindowManager.LayoutParams.TYPE_APPLICATION,
 848                     WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
 849                     PixelFormat.TRANSLUCENT);
 850             params.gravity = Gravity.TOP;
 851             boolean atTop = mainView.getScrollY() == 0;
 852             params.windowAnimations = atTop ? 0 : R.style.TitleBar;
 853             manager.addView(mFakeTitleBar, params);
 854         }
 855     }
 856
 857     @Override
 858     public void onOptionsMenuClosed(Menu menu) {
 859         mOptionsMenuOpen = false;
 860         if (!mInLoad) {
 861             hideFakeTitleBar();
 862         } else if (!mIconView) {
 863             // The page is currently loading, and we are in expanded mode, so
 864             // we were not showing the menu.  Show it once again.  It will be
 865             // removed when the page finishes.
 866             showFakeTitleBar();
 867         }
 868     }
 869
 870     private void hideFakeTitleBar() {
 871         if (mFakeTitleBar.getParent() == null) return;
 872         WindowManager.LayoutParams params = (WindowManager.LayoutParams)
 873                 mFakeTitleBar.getLayoutParams();
 874         WebView mainView = mTabControl.getCurrentWebView();
 875         // Although we decided whether or not to animate based on the current
 876         // scroll position, the scroll position may have changed since the
 877         // fake title bar was displayed.  Make sure it has the appropriate
 878         // animation/lack thereof before removing.
 879         params.windowAnimations = mainView != null && mainView.getScrollY() == 0
 880                 ? 0 : R.style.TitleBar;
 881         WindowManager manager
 882                     = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
 883         manager.updateViewLayout(mFakeTitleBar, params);
 884         manager.removeView(mFakeTitleBar);
 885     }
 886
 887     /**
 888      * Special method for the fake title bar to call when displaying its context
 889      * menu, since it is in its own Window, and its parent does not show a
 890      * context menu.
 891      */
 892     /* package */ void showTitleBarContextMenu() {
 893         if (null == mTitleBar.getParent()) {
 894             return;
 895         }
 896         openContextMenu(mTitleBar);
 897     }
 898
 899     @Override
 900     public void onContextMenuClosed(Menu menu) {
 901         super.onContextMenuClosed(menu);
 902         if (mInLoad) {
 903             showFakeTitleBar();
 904         }
 905     }
 906
 907     /**
 908      *  onSaveInstanceState(Bundle map)
 909      *  onSaveInstanceState is called right before onStop(). The map contains
 910      *  the saved state.
 911      */
 912     @Override
 913     protected void onSaveInstanceState(Bundle outState) {
 914         if (LOGV_ENABLED) {
 915             Log.v(LOGTAG, "BrowserActivity.onSaveInstanceState: this=" + this);
 916         }
 917         // the default implementation requires each view to have an id. As the
 918         // browser handles the state itself and it doesn't use id for the views,
 919         // don't call the default implementation. Otherwise it will trigger the
 920         // warning like this, "couldn't save which view has focus because the
 921         // focused view XXX has no id".
 922
 923         // Save all the tabs
 924         mTabControl.saveState(outState);
 925     }
 926
 927     @Override
 928     protected void onPause() {
 929         super.onPause();
 930
 931         if (mActivityInPause) {
 932             Log.e(LOGTAG, "BrowserActivity is already paused.");
 933             return;
 934         }
 935
 936         mTabControl.pauseCurrentTab();
 937         mActivityInPause = true;
 938         if (mTabControl.getCurrentIndex() >= 0 && !pauseWebViewTimers()) {
 939             mWakeLock.acquire();
 940             mHandler.sendMessageDelayed(mHandler
 941                     .obtainMessage(RELEASE_WAKELOCK), WAKELOCK_TIMEOUT);
 942         }
 943
 944         // FIXME: This removes the active tabs page and resets the menu to
 945         // MAIN_MENU.  A better solution might be to do this work in onNewIntent
 946         // but then we would need to save it in onSaveInstanceState and restore
 947         // it in onCreate/onRestoreInstanceState
 948         if (mActiveTabsPage != null) {
 949             removeActiveTabPage(true);
 950         }
 951
 952         cancelStopToast();
 953
 954         // unregister network state listener
 955         unregisterReceiver(mNetworkStateIntentReceiver);
 956         WebView.disablePlatformNotifications();
 957
 958         if (mCustomView != null) {
 959             mTabControl.getCurrentWebView().getWebChromeClient().onHideCustomView();
 960         }
 961     }
 962
 963     @Override
 964     protected void onDestroy() {
 965         if (LOGV_ENABLED) {
 966             Log.v(LOGTAG, "BrowserActivity.onDestroy: this=" + this);
 967         }
 968         super.onDestroy();
 969
 970         if (mUploadMessage != null) {
 971             mUploadMessage.onReceiveValue(null);
 972             mUploadMessage = null;
 973         }
 974
 975         if (mTabControl == null) return;
 976
 977         // Remove the fake title bar if it is there
 978         hideFakeTitleBar();
 979
 980         // Remove the current tab and sub window
 981         Tab t = mTabControl.getCurrentTab();
 982         if (t != null) {
 983             dismissSubWindow(t);
 984             removeTabFromContentView(t);
 985         }
 986         // Destroy all the tabs
 987         mTabControl.destroy();
 988         WebIconDatabase.getInstance().close();
 989
 990         unregisterReceiver(mPackageInstallationReceiver);
 991
 992         // Stop watching the default geolocation permissions
 993         mSystemAllowGeolocationOrigins.stop();
 994         mSystemAllowGeolocationOrigins = null;
 995     }
 996
 997     @Override
 998     public void onConfigurationChanged(Configuration newConfig) {
 999         mConfigChanged = true;
1000         super.onConfigurationChanged(newConfig);
1001
1002         if (mPageInfoDialog != null) {
1003             mPageInfoDialog.dismiss();
1004             showPageInfo(
1005                 mPageInfoView,
1006                 mPageInfoFromShowSSLCertificateOnError);
1007         }
1008         if (mSSLCertificateDialog != null) {
1009             mSSLCertificateDialog.dismiss();
1010             showSSLCertificate(
1011                 mSSLCertificateView);
1012         }
1013         if (mSSLCertificateOnErrorDialog != null) {
1014             mSSLCertificateOnErrorDialog.dismiss();
1015             showSSLCertificateOnError(
1016                 mSSLCertificateOnErrorView,
1017                 mSSLCertificateOnErrorHandler,
1018                 mSSLCertificateOnErrorError);
1019         }
1020         if (mHttpAuthenticationDialog != null) {
1021             String title = ((TextView) mHttpAuthenticationDialog
1022                     .findViewById(com.android.internal.R.id.alertTitle)).getText()
1023                     .toString();
1024             String name = ((TextView) mHttpAuthenticationDialog
1025                     .findViewById(R.id.username_edit)).getText().toString();
1026             String password = ((TextView) mHttpAuthenticationDialog
1027                     .findViewById(R.id.password_edit)).getText().toString();
1028             int focusId = mHttpAuthenticationDialog.getCurrentFocus()
1029                     .getId();
1030             mHttpAuthenticationDialog.dismiss();
1031             showHttpAuthentication(mHttpAuthHandler, null, null, title,
1032                     name, password, focusId);
1033         }
1034     }
1035
1036     @Override
1037     public void onLowMemory() {
1038         super.onLowMemory();
1039         mTabControl.freeMemory();
1040     }
1041
1042     private void resumeWebViewTimers() {
1043         Tab tab = mTabControl.getCurrentTab();
1044         if (tab == null) return; // monkey can trigger this
1045         boolean inLoad = tab.inLoad();
1046         if ((!mActivityInPause && !inLoad) || (mActivityInPause && inLoad)) {
1047             CookieSyncManager.getInstance().startSync();
1048             WebView w = tab.getWebView();
1049             if (w != null) {
1050                 w.resumeTimers();
1051             }
1052         }
1053     }
1054
1055     private boolean pauseWebViewTimers() {
1056         Tab tab = mTabControl.getCurrentTab();
1057         boolean inLoad = tab.inLoad();
1058         if (mActivityInPause && !inLoad) {
1059             CookieSyncManager.getInstance().stopSync();
1060             WebView w = mTabControl.getCurrentWebView();
1061             if (w != null) {
1062                 w.pauseTimers();
1063             }
1064             return true;
1065         } else {
1066             return false;
1067         }
1068     }
1069
1070     // Open the icon database and retain all the icons for visited sites.
1071     private void retainIconsOnStartup() {
1072         final WebIconDatabase db = WebIconDatabase.getInstance();
1073         db.open(getDir("icons", 0).getPath());
1074         Cursor c = null;
1075         try {
1076             c = Browser.getAllBookmarks(mResolver);
1077             if (c.moveToFirst()) {
1078                 int urlIndex = c.getColumnIndex(Browser.BookmarkColumns.URL);
1079                 do {
1080                     String url = c.getString(urlIndex);
1081                     db.retainIconForPageUrl(url);
1082                 } while (c.moveToNext());
1083             }
1084         } catch (IllegalStateException e) {
1085             Log.e(LOGTAG, "retainIconsOnStartup", e);
1086         } finally {
1087             if (c!= null) c.close();
1088         }
1089     }
1090
1091     // Helper method for getting the top window.
1092     WebView getTopWindow() {
1093         return mTabControl.getCurrentTopWebView();
1094     }
1095
1096     TabControl getTabControl() {
1097         return mTabControl;
1098     }
1099
1100     @Override
1101     public boolean onCreateOptionsMenu(Menu menu) {
1102         super.onCreateOptionsMenu(menu);
1103
1104         MenuInflater inflater = getMenuInflater();
1105         inflater.inflate(R.menu.browser, menu);
1106         mMenu = menu;
1107         updateInLoadMenuItems();
1108         return true;
1109     }
1110
1111     /**
1112      * As the menu can be open when loading state changes
1113      * we must manually update the state of the stop/reload menu
1114      * item
1115      */
1116     private void updateInLoadMenuItems() {
1117         if (mMenu == null) {
1118             return;
1119         }
1120         MenuItem src = mInLoad ?
1121                 mMenu.findItem(R.id.stop_menu_id):
1122                     mMenu.findItem(R.id.reload_menu_id);
1123         MenuItem dest = mMenu.findItem(R.id.stop_reload_menu_id);
1124         dest.setIcon(src.getIcon());
1125         dest.setTitle(src.getTitle());
1126     }
1127
1128     @Override
1129     public boolean onContextItemSelected(MenuItem item) {
1130         // chording is not an issue with context menus, but we use the same
1131         // options selector, so set mCanChord to true so we can access them.
1132         mCanChord = true;
1133         int id = item.getItemId();
1134         boolean result = true;
1135         switch (id) {
1136             // For the context menu from the title bar
1137             case R.id.title_bar_copy_page_url:
1138                 Tab currentTab = mTabControl.getCurrentTab();
1139                 if (null == currentTab) {
1140                     result = false;
1141                     break;
1142                 }
1143                 WebView mainView = currentTab.getWebView();
1144                 if (null == mainView) {
1145                     result = false;
1146                     break;
1147                 }
1148                 copy(mainView.getUrl());
1149                 break;
1150             // -- Browser context menu
1151             case R.id.open_context_menu_id:
1152             case R.id.open_newtab_context_menu_id:
1153             case R.id.bookmark_context_menu_id:
1154             case R.id.save_link_context_menu_id:
1155             case R.id.share_link_context_menu_id:
1156             case R.id.copy_link_context_menu_id:
1157                 final WebView webView = getTopWindow();
1158                 if (null == webView) {
1159                     result = false;
1160                     break;
1161                 }
1162                 final HashMap hrefMap = new HashMap();
1163                 hrefMap.put("webview", webView);
1164                 final Message msg = mHandler.obtainMessage(
1165                         FOCUS_NODE_HREF, id, 0, hrefMap);
1166                 webView.requestFocusNodeHref(msg);
1167                 break;
1168
1169             default:
1170                 // For other context menus
1171                 result = onOptionsItemSelected(item);
1172         }
1173         mCanChord = false;
1174         return result;
1175     }
1176
1177     private Bundle createGoogleSearchSourceBundle(String source) {
1178         Bundle bundle = new Bundle();
1179         bundle.putString(Search.SOURCE, source);
1180         return bundle;
1181     }
1182
1183     /* package */ void editUrl() {
1184         if (mOptionsMenuOpen) closeOptionsMenu();
1185         String url = (getTopWindow() == null) ? null : getTopWindow().getUrl();
1186         startSearch(mSettings.getHomePage().equals(url) ? null : url, true,
1187                 null, false);
1188     }
1189
1190     /**
1191      * Overriding this to insert a local information bundle
1192      */
1193     @Override
1194     public void startSearch(String initialQuery, boolean selectInitialQuery,
1195             Bundle appSearchData, boolean globalSearch) {
1196         if (appSearchData == null) {
1197             appSearchData = createGoogleSearchSourceBundle(GOOGLE_SEARCH_SOURCE_TYPE);
1198         }
1199
1200         SearchEngine searchEngine = mSettings.getSearchEngine();
1201         if (searchEngine != null && !searchEngine.supportsVoiceSearch()) {
1202             appSearchData.putBoolean(SearchManager.DISABLE_VOICE_SEARCH, true);
1203         }
1204
1205         super.startSearch(initialQuery, selectInitialQuery, appSearchData, globalSearch);
1206     }
1207
1208     /**
1209      * Switch tabs.  Called by the TitleBarSet when sliding the title bar
1210      * results in changing tabs.
1211      * @param index Index of the tab to change to, as defined by
1212      *              mTabControl.getTabIndex(Tab t).
1213      * @return boolean True if we successfully switched to a different tab.  If
1214      *                 the indexth tab is null, or if that tab is the same as
1215      *                 the current one, return false.
1216      */
1217     /* package */ boolean switchToTab(int index) {
1218         Tab tab = mTabControl.getTab(index);
1219         Tab currentTab = mTabControl.getCurrentTab();
1220         if (tab == null || tab == currentTab) {
1221             return false;
1222         }
1223         if (currentTab != null) {
1224             // currentTab may be null if it was just removed.  In that case,
1225             // we do not need to remove it
1226             removeTabFromContentView(currentTab);
1227         }
1228         mTabControl.setCurrentTab(tab);
1229         attachTabToContentView(tab);
1230         resetTitleIconAndProgress();
1231         updateLockIconToLatest();
1232         return true;
1233     }
1234
1235     /* package */ Tab openTabToHomePage() {
1236         return openTabAndShow(mSettings.getHomePage(), false, null);
1237     }
1238
1239     /* package */ void closeCurrentWindow() {
1240         final Tab current = mTabControl.getCurrentTab();
1241         if (mTabControl.getTabCount() == 1) {
1242             // This is the last tab.  Open a new one, with the home
1243             // page and close the current one.
1244             openTabToHomePage();
1245             closeTab(current);
1246             return;
1247         }
1248         final Tab parent = current.getParentTab();
1249         int indexToShow = -1;
1250         if (parent != null) {
1251             indexToShow = mTabControl.getTabIndex(parent);
1252         } else {
1253             final int currentIndex = mTabControl.getCurrentIndex();
1254             // Try to move to the tab to the right
1255             indexToShow = currentIndex + 1;
1256             if (indexToShow > mTabControl.getTabCount() - 1) {
1257                 // Try to move to the tab to the left
1258                 indexToShow = currentIndex - 1;
1259             }
1260         }
1261         if (switchToTab(indexToShow)) {
1262             // Close window
1263             closeTab(current);
1264         }
1265     }
1266
1267     private ActiveTabsPage mActiveTabsPage;
1268
1269     /**
1270      * Remove the active tabs page.
1271      * @param needToAttach If true, the active tabs page did not attach a tab
1272      *                     to the content view, so we need to do that here.
1273      */
1274     /* package */ void removeActiveTabPage(boolean needToAttach) {
1275         mContentView.removeView(mActiveTabsPage);
1276         mActiveTabsPage = null;
1277         mMenuState = R.id.MAIN_MENU;
1278         if (needToAttach) {
1279             attachTabToContentView(mTabControl.getCurrentTab());
1280         }
1281         getTopWindow().requestFocus();
1282     }
1283
1284     private WebView showDialog(WebDialog dialog) {
1285         Tab tab = mTabControl.getCurrentTab();
1286         if (tab.getSubWebView() == null) {
1287             // If the find or select is being performed on the main webview,
1288             // remove the embedded title bar.
1289             WebView mainView = tab.getWebView();
1290             if (mainView != null) {
1291                 mainView.setEmbeddedTitleBar(null);
1292             }
1293         }
1294         hideFakeTitleBar();
1295         mMenuState = EMPTY_MENU;
1296         return tab.showDialog(dialog);
1297     }
1298
1299     @Override
1300     public boolean onOptionsItemSelected(MenuItem item) {
1301         if (!mCanChord) {
1302             // The user has already fired a shortcut with this hold down of the
1303             // menu key.
1304             return false;
1305         }
1306         if (null == getTopWindow()) {
1307             return false;
1308         }
1309         if (mMenuIsDown) {
1310             // The shortcut action consumes the MENU. Even if it is still down,
1311             // it won't trigger the next shortcut action. In the case of the
1312             // shortcut action triggering a new activity, like Bookmarks, we
1313             // won't get onKeyUp for MENU. So it is important to reset it here.
1314             mMenuIsDown = false;
1315         }
1316         switch (item.getItemId()) {
1317             // -- Main menu
1318             case R.id.new_tab_menu_id:
1319                 openTabToHomePage();
1320                 break;
1321
1322             case R.id.goto_menu_id:
1323                 editUrl();
1324                 break;
1325
1326             case R.id.bookmarks_menu_id:
1327                 bookmarksOrHistoryPicker(false);
1328                 break;
1329
1330             case R.id.active_tabs_menu_id:
1331                 mActiveTabsPage = new ActiveTabsPage(this, mTabControl);
1332                 removeTabFromContentView(mTabControl.getCurrentTab());
1333                 hideFakeTitleBar();
1334                 mContentView.addView(mActiveTabsPage, COVER_SCREEN_PARAMS);
1335                 mActiveTabsPage.requestFocus();
1336                 mMenuState = EMPTY_MENU;
1337                 break;
1338
1339             case R.id.add_bookmark_menu_id:
1340                 Intent i = new Intent(BrowserActivity.this,
1341                         AddBookmarkPage.class);
1342                 WebView w = getTopWindow();
1343                 i.putExtra("url", w.getUrl());
1344                 i.putExtra("title", w.getTitle());
1345                 i.putExtra("touch_icon_url", w.getTouchIconUrl());
1346                 i.putExtra("thumbnail", createScreenshot(w));
1347                 startActivity(i);
1348                 break;
1349
1350             case R.id.stop_reload_menu_id:
1351                 if (mInLoad) {
1352                     stopLoading();
1353                 } else {
1354                     getTopWindow().reload();
1355                 }
1356                 break;
1357
1358             case R.id.back_menu_id:
1359                 getTopWindow().goBack();
1360                 break;
1361
1362             case R.id.forward_menu_id:
1363                 getTopWindow().goForward();
1364                 break;
1365
1366             case R.id.close_menu_id:
1367                 // Close the subwindow if it exists.
1368                 if (mTabControl.getCurrentSubWindow() != null) {
1369                     dismissSubWindow(mTabControl.getCurrentTab());
1370                     break;
1371                 }
1372                 closeCurrentWindow();
1373                 break;
1374
1375             case R.id.homepage_menu_id:
1376                 Tab current = mTabControl.getCurrentTab();
1377                 if (current != null) {
1378                     dismissSubWindow(current);
1379                     loadUrl(current.getWebView(), mSettings.getHomePage());
1380                 }
1381                 break;
1382
1383             case R.id.preferences_menu_id:
1384                 Intent intent = new Intent(this,
1385                         BrowserPreferencesPage.class);
1386                 intent.putExtra(BrowserPreferencesPage.CURRENT_PAGE,
1387                         getTopWindow().getUrl());
1388                 startActivityForResult(intent, PREFERENCES_PAGE);
1389                 break;
1390
1391             case R.id.find_menu_id:
1392                 showFindDialog();
1393                 break;
1394
1395             case R.id.select_text_id:
1396                 if (true) {
1397                     Tab currentTab = mTabControl.getCurrentTab();
1398                     if (currentTab != null) {
1399                         currentTab.getWebView().setUpSelect();
1400                     }
1401                 } else {
1402                     showSelectDialog();
1403                 }
1404                 break;
1405
1406             case R.id.page_info_menu_id:
1407                 showPageInfo(mTabControl.getCurrentTab(), false);
1408                 break;
1409
1410             case R.id.classic_history_menu_id:
1411                 bookmarksOrHistoryPicker(true);
1412                 break;
1413
1414             case R.id.title_bar_share_page_url:
1415             case R.id.share_page_menu_id:
1416                 Tab currentTab = mTabControl.getCurrentTab();
1417                 if (null == currentTab) {
1418                     mCanChord = false;
1419                     return false;
1420                 }
1421                 currentTab.populatePickerData();
1422                 sharePage(this, currentTab.getTitle(),
1423                         currentTab.getUrl(), currentTab.getFavicon(),
1424                         createScreenshot(currentTab.getWebView()));
1425                 break;
1426
1427             case R.id.dump_nav_menu_id:
1428                 getTopWindow().debugDump();
1429                 break;
1430
1431             case R.id.dump_counters_menu_id:
1432                 getTopWindow().dumpV8Counters();
1433                 break;
1434
1435             case R.id.zoom_in_menu_id:
1436                 getTopWindow().zoomIn();
1437                 break;
1438
1439             case R.id.zoom_out_menu_id:
1440                 getTopWindow().zoomOut();
1441                 break;
1442
1443             case R.id.view_downloads_menu_id:
1444                 viewDownloads();
1445                 break;
1446
1447             case R.id.window_one_menu_id:
1448             case R.id.window_two_menu_id:
1449             case R.id.window_three_menu_id:
1450             case R.id.window_four_menu_id:
1451             case R.id.window_five_menu_id:
1452             case R.id.window_six_menu_id:
1453             case R.id.window_seven_menu_id:
1454             case R.id.window_eight_menu_id:
1455                 {
1456                     int menuid = item.getItemId();
1457                     for (int id = 0; id < WINDOW_SHORTCUT_ID_ARRAY.length; id++) {
1458                         if (WINDOW_SHORTCUT_ID_ARRAY[id] == menuid) {
1459                             Tab desiredTab = mTabControl.getTab(id);
1460                             if (desiredTab != null &&
1461                                     desiredTab != mTabControl.getCurrentTab()) {
1462                                 switchToTab(id);
1463                             }
1464                             break;
1465                         }
1466                     }
1467                 }
1468                 break;
1469
1470             default:
1471                 if (!super.onOptionsItemSelected(item)) {
1472                     return false;
1473                 }
1474                 // Otherwise fall through.
1475         }
1476         mCanChord = false;
1477         return true;
1478     }
1479
1480     private boolean dialogIsUp() {
1481         return null != mFindDialog && mFindDialog.isVisible() ||
1482             null != mSelectDialog && mSelectDialog.isVisible();
1483     }
1484
1485     private boolean closeDialog(WebDialog dialog) {
1486         if (null == dialog || !dialog.isVisible()) return false;
1487         Tab currentTab = mTabControl.getCurrentTab();
1488         currentTab.closeDialog(dialog);
1489         dialog.dismiss();
1490         return true;
1491     }
1492
1493     /*
1494      * Remove the find dialog or select dialog.
1495      */
1496     public void closeDialogs() {
1497         if (!(closeDialog(mFindDialog) || closeDialog(mSelectDialog))) return;
1498         // If the Find was being performed in the main WebView, replace the
1499         // embedded title bar.
1500         Tab currentTab = mTabControl.getCurrentTab();
1501         if (currentTab.getSubWebView() == null) {
1502             WebView mainView = currentTab.getWebView();
1503             if (mainView != null) {
1504                 mainView.setEmbeddedTitleBar(mTitleBar);
1505             }
1506         }
1507         mMenuState = R.id.MAIN_MENU;
1508         if (mInLoad) {
1509             // The title bar was hidden, because otherwise it would cover up the
1510             // find or select dialog.  Now that the dialog has been removed,
1511             // show the fake title bar once again.
1512             showFakeTitleBar();
1513         }
1514     }
1515
1516     public void showFindDialog() {
1517         if (null == mFindDialog) {
1518             mFindDialog = new FindDialog(this);
1519         }
1520         showDialog(mFindDialog).setFindIsUp(true);
1521     }
1522
1523     public void setFindDialogText(String text) {
1524         mFindDialog.setText(text);
1525     }
1526
1527     public void showSelectDialog() {
1528         if (null == mSelectDialog) {
1529             mSelectDialog = new SelectDialog(this);
1530         }
1531         showDialog(mSelectDialog).setUpSelect();
1532         mSelectDialog.hideSoftInput();
1533     }
1534
1535     @Override
1536     public boolean onPrepareOptionsMenu(Menu menu) {
1537         // This happens when the user begins to hold down the menu key, so
1538         // allow them to chord to get a shortcut.
1539         mCanChord = true;
1540         // Note: setVisible will decide whether an item is visible; while
1541         // setEnabled() will decide whether an item is enabled, which also means
1542         // whether the matching shortcut key will function.
1543         super.onPrepareOptionsMenu(menu);
1544         switch (mMenuState) {
1545             case EMPTY_MENU:
1546                 if (mCurrentMenuState != mMenuState) {
1547                     menu.setGroupVisible(R.id.MAIN_MENU, false);
1548                     menu.setGroupEnabled(R.id.MAIN_MENU, false);
1549                     menu.setGroupEnabled(R.id.MAIN_SHORTCUT_MENU, false);
1550                 }
1551                 break;
1552             default:
1553                 if (mCurrentMenuState != mMenuState) {
1554                     menu.setGroupVisible(R.id.MAIN_MENU, true);
1555                     menu.setGroupEnabled(R.id.MAIN_MENU, true);
1556                     menu.setGroupEnabled(R.id.MAIN_SHORTCUT_MENU, true);
1557                 }
1558                 final WebView w = getTopWindow();
1559                 boolean canGoBack = false;
1560                 boolean canGoForward = false;
1561                 boolean isHome = false;
1562                 if (w != null) {
1563                     canGoBack = w.canGoBack();
1564                     canGoForward = w.canGoForward();
1565                     isHome = mSettings.getHomePage().equals(w.getUrl());
1566                 }
1567                 final MenuItem back = menu.findItem(R.id.back_menu_id);
1568                 back.setEnabled(canGoBack);
1569
1570                 final MenuItem home = menu.findItem(R.id.homepage_menu_id);
1571                 home.setEnabled(!isHome);
1572
1573                 menu.findItem(R.id.forward_menu_id)
1574                         .setEnabled(canGoForward);
1575
1576                 menu.findItem(R.id.new_tab_menu_id).setEnabled(
1577                         mTabControl.canCreateNewTab());
1578
1579                 // decide whether to show the share link option
1580                 PackageManager pm = getPackageManager();
1581                 Intent send = new Intent(Intent.ACTION_SEND);
1582                 send.setType("text/plain");
1583                 ResolveInfo ri = pm.resolveActivity(send, PackageManager.MATCH_DEFAULT_ONLY);
1584                 menu.findItem(R.id.share_page_menu_id).setVisible(ri != null);
1585
1586                 boolean isNavDump = mSettings.isNavDump();
1587                 final MenuItem nav = menu.findItem(R.id.dump_nav_menu_id);
1588                 nav.setVisible(isNavDump);
1589                 nav.setEnabled(isNavDump);
1590
1591                 boolean showDebugSettings = mSettings.showDebugSettings();
1592                 final MenuItem counter = menu.findItem(R.id.dump_counters_menu_id);
1593                 counter.setVisible(showDebugSettings);
1594                 counter.setEnabled(showDebugSettings);
1595
1596                 break;
1597         }
1598         mCurrentMenuState = mMenuState;
1599         return true;
1600     }
1601
1602     @Override
1603     public void onCreateContextMenu(ContextMenu menu, View v,
1604             ContextMenuInfo menuInfo) {
1605         if (v instanceof TitleBar) {
1606             return;
1607         }
1608         WebView webview = (WebView) v;
1609         WebView.HitTestResult result = webview.getHitTestResult();
1610         if (result == null) {
1611             return;
1612         }
1613
1614         int type = result.getType();
1615         if (type == WebView.HitTestResult.UNKNOWN_TYPE) {
1616             Log.w(LOGTAG,
1617                     "We should not show context menu when nothing is touched");
1618             return;
1619         }
1620         if (type == WebView.HitTestResult.EDIT_TEXT_TYPE) {
1621             // let TextView handles context menu
1622             return;
1623         }
1624
1625         // Note, http://b/issue?id=1106666 is requesting that
1626         // an inflated menu can be used again. This is not available
1627         // yet, so inflate each time (yuk!)
1628         MenuInflater inflater = getMenuInflater();
1629         inflater.inflate(R.menu.browsercontext, menu);
1630
1631         // Show the correct menu group
1632         String extra = result.getExtra();
1633         menu.setGroupVisible(R.id.PHONE_MENU,
1634                 type == WebView.HitTestResult.PHONE_TYPE);
1635         menu.setGroupVisible(R.id.EMAIL_MENU,
1636                 type == WebView.HitTestResult.EMAIL_TYPE);
1637         menu.setGroupVisible(R.id.GEO_MENU,
1638                 type == WebView.HitTestResult.GEO_TYPE);
1639         menu.setGroupVisible(R.id.IMAGE_MENU,
1640                 type == WebView.HitTestResult.IMAGE_TYPE
1641                 || type == WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE);
1642         menu.setGroupVisible(R.id.ANCHOR_MENU,
1643                 type == WebView.HitTestResult.SRC_ANCHOR_TYPE
1644                 || type == WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE);
1645
1646         // Setup custom handling depending on the type
1647         switch (type) {
1648             case WebView.HitTestResult.PHONE_TYPE:
1649                 menu.setHeaderTitle(Uri.decode(extra));
1650                 menu.findItem(R.id.dial_context_menu_id).setIntent(
1651                         new Intent(Intent.ACTION_VIEW, Uri
1652                                 .parse(WebView.SCHEME_TEL + extra)));
1653                 Intent addIntent = new Intent(Intent.ACTION_INSERT_OR_EDIT);
1654                 addIntent.putExtra(Insert.PHONE, Uri.decode(extra));
1655                 addIntent.setType(ContactsContract.Contacts.CONTENT_ITEM_TYPE);
1656                 menu.findItem(R.id.add_contact_context_menu_id).setIntent(
1657                         addIntent);
1658                 menu.findItem(R.id.copy_phone_context_menu_id).setOnMenuItemClickListener(
1659                         new Copy(extra));
1660                 break;
1661
1662             case WebView.HitTestResult.EMAIL_TYPE:
1663                 menu.setHeaderTitle(extra);
1664                 menu.findItem(R.id.email_context_menu_id).setIntent(
1665                         new Intent(Intent.ACTION_VIEW, Uri
1666                                 .parse(WebView.SCHEME_MAILTO + extra)));
1667                 menu.findItem(R.id.copy_mail_context_menu_id).setOnMenuItemClickListener(
1668                         new Copy(extra));
1669                 break;
1670
1671             case WebView.HitTestResult.GEO_TYPE:
1672                 menu.setHeaderTitle(extra);
1673                 menu.findItem(R.id.map_context_menu_id).setIntent(
1674                         new Intent(Intent.ACTION_VIEW, Uri
1675                                 .parse(WebView.SCHEME_GEO
1676                                         + URLEncoder.encode(extra))));
1677                 menu.findItem(R.id.copy_geo_context_menu_id).setOnMenuItemClickListener(
1678                         new Copy(extra));
1679                 break;
1680
1681             case WebView.HitTestResult.SRC_ANCHOR_TYPE:
1682             case WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE:
1683                 TextView titleView = (TextView) LayoutInflater.from(this)
1684                         .inflate(android.R.layout.browser_link_context_header,
1685                         null);
1686                 titleView.setText(extra);
1687                 menu.setHeaderView(titleView);
1688                 // decide whether to show the open link in new tab option
1689                 menu.findItem(R.id.open_newtab_context_menu_id).setVisible(
1690                         mTabControl.canCreateNewTab());
1691                 menu.findItem(R.id.bookmark_context_menu_id).setVisible(
1692                         Bookmarks.urlHasAcceptableScheme(extra));
1693                 PackageManager pm = getPackageManager();
1694                 Intent send = new Intent(Intent.ACTION_SEND);
1695                 send.setType("text/plain");
1696                 ResolveInfo ri = pm.resolveActivity(send, PackageManager.MATCH_DEFAULT_ONLY);
1697                 menu.findItem(R.id.share_link_context_menu_id).setVisible(ri != null);
1698                 if (type == WebView.HitTestResult.SRC_ANCHOR_TYPE) {
1699                     break;
1700                 }
1701                 // otherwise fall through to handle image part
1702             case WebView.HitTestResult.IMAGE_TYPE:
1703                 if (type == WebView.HitTestResult.IMAGE_TYPE) {
1704                     menu.setHeaderTitle(extra);
1705                 }
1706                 menu.findItem(R.id.view_image_context_menu_id).setIntent(
1707                         new Intent(Intent.ACTION_VIEW, Uri.parse(extra)));
1708                 menu.findItem(R.id.download_context_menu_id).
1709                         setOnMenuItemClickListener(new Download(extra));
1710                 menu.findItem(R.id.set_wallpaper_context_menu_id).
1711                         setOnMenuItemClickListener(new SetAsWallpaper(extra));
1712                 break;
1713
1714             default:
1715                 Log.w(LOGTAG, "We should not get here.");
1716                 break;
1717         }
1718         hideFakeTitleBar();
1719     }
1720
1721     // Attach the given tab to the content view.
1722     // this should only be called for the current tab.
1723     private void attachTabToContentView(Tab t) {
1724         // Attach the container that contains the main WebView and any other UI
1725         // associated with the tab.
1726         t.attachTabToContentView(mContentView);
1727
1728         if (mShouldShowErrorConsole) {
1729             ErrorConsoleView errorConsole = t.getErrorConsole(true);
1730             if (errorConsole.numberOfErrors() == 0) {
1731                 errorConsole.showConsole(ErrorConsoleView.SHOW_NONE);
1732             } else {
1733                 errorConsole.showConsole(ErrorConsoleView.SHOW_MINIMIZED);
1734             }
1735
1736             mErrorConsoleContainer.addView(errorConsole,
1737                     new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
1738                                                   ViewGroup.LayoutParams.WRAP_CONTENT));
1739         }
1740
1741         WebView view = t.getWebView();
1742         view.setEmbeddedTitleBar(mTitleBar);
1743         if (t.isInVoiceSearchMode()) {
1744             showVoiceTitleBar(t.getVoiceDisplayTitle());
1745         } else {
1746             revertVoiceTitleBar();
1747         }
1748         // Request focus on the top window.
1749         t.getTopWindow().requestFocus();
1750     }
1751
1752     // Attach a sub window to the main WebView of the given tab.
1753     void attachSubWindow(Tab t) {
1754         t.attachSubWindow(mContentView);
1755         getTopWindow().requestFocus();
1756     }
1757
1758     // Remove the given tab from the content view.
1759     private void removeTabFromContentView(Tab t) {
1760         // Remove the container that contains the main WebView.
1761         t.removeTabFromContentView(mContentView);
1762
1763         ErrorConsoleView errorConsole = t.getErrorConsole(false);
1764         if (errorConsole != null) {
1765             mErrorConsoleContainer.removeView(errorConsole);
1766         }
1767
1768         WebView view = t.getWebView();
1769         if (view != null) {
1770             view.setEmbeddedTitleBar(null);
1771         }
1772     }
1773
1774     // Remove the sub window if it exists. Also called by TabControl when the
1775     // user clicks the 'X' to dismiss a sub window.
1776     /* package */ void dismissSubWindow(Tab t) {
1777         t.removeSubWindow(mContentView);
1778         // dismiss the subwindow. This will destroy the WebView.
1779         t.dismissSubWindow();
1780         getTopWindow().requestFocus();
1781     }
1782
1783     // A wrapper function of {@link #openTabAndShow(UrlData, boolean, String)}
1784     // that accepts url as string.
1785     private Tab openTabAndShow(String url, boolean closeOnExit, String appId) {
1786         return openTabAndShow(new UrlData(url), closeOnExit, appId);
1787     }
1788
1789     // This method does a ton of stuff. It will attempt to create a new tab
1790     // if we haven't reached MAX_TABS. Otherwise it uses the current tab. If
1791     // url isn't null, it will load the given url.
1792     /* package */Tab openTabAndShow(UrlData urlData, boolean closeOnExit,
1793             String appId) {
1794         Tab currentTab = mTabControl.getCurrentTab();
1795         if (!mTabControl.canCreateNewTab()) {
1796             Tab closeTab = mTabControl.getTab(0);
1797             closeTab(closeTab);
1798             if (closeTab == currentTab) {
1799                 currentTab = null;
1800             }
1801         }
1802         final Tab tab = mTabControl.createNewTab(closeOnExit, appId,
1803                 urlData.mUrl);
1804         WebView webview = tab.getWebView();
1805         // If the last tab was removed from the active tabs page, currentTab
1806         // will be null.
1807         if (currentTab != null) {
1808             removeTabFromContentView(currentTab);
1809         }
1810         // We must set the new tab as the current tab to reflect the old
1811         // animation behavior.
1812         mTabControl.setCurrentTab(tab);
1813         attachTabToContentView(tab);
1814         if (!urlData.isEmpty()) {
1815             loadUrlDataIn(tab, urlData);
1816         }
1817         return tab;
1818     }
1819
1820     private Tab openTab(String url) {
1821         if (mSettings.openInBackground()) {
1822             Tab t = mTabControl.createNewTab();
1823             if (t != null) {
1824                 WebView view = t.getWebView();
1825                 loadUrl(view, url);
1826             }
1827             return t;
1828         } else {
1829             return openTabAndShow(url, false, null);
1830         }
1831     }
1832
1833     private class Copy implements OnMenuItemClickListener {
1834         private CharSequence mText;
1835
1836         public boolean onMenuItemClick(MenuItem item) {
1837             copy(mText);
1838             return true;
1839         }
1840
1841         public Copy(CharSequence toCopy) {
1842             mText = toCopy;
1843         }
1844     }
1845
1846     private class Download implements OnMenuItemClickListener {
1847         private String mText;
1848
1849         public boolean onMenuItemClick(MenuItem item) {
1850             onDownloadStartNoStream(mText, null, null, null, -1);
1851             return true;
1852         }
1853
1854         public Download(String toDownload) {
1855             mText = toDownload;
1856         }
1857     }
1858
1859     private class SetAsWallpaper extends Thread implements
1860             OnMenuItemClickListener, DialogInterface.OnCancelListener {
1861         private URL mUrl;
1862         private ProgressDialog mWallpaperProgress;
1863         private boolean mCanceled = false;
1864
1865         public SetAsWallpaper(String url) {
1866             try {
1867                 mUrl = new URL(url);
1868             } catch (MalformedURLException e) {
1869                 mUrl = null;
1870             }
1871         }
1872
1873         public void onCancel(DialogInterface dialog) {
1874             mCanceled = true;
1875         }
1876
1877         public boolean onMenuItemClick(MenuItem item) {
1878             if (mUrl != null) {
1879                 // The user may have tried to set a image with a large file size as their
1880                 // background so it may take a few moments to perform the operation. Display
1881                 // a progress spinner while it is working.
1882                 mWallpaperProgress = new ProgressDialog(BrowserActivity.this);
1883                 mWallpaperProgress.setIndeterminate(true);
1884                 mWallpaperProgress.setMessage(getText(R.string.progress_dialog_setting_wallpaper));
1885                 mWallpaperProgress.setCancelable(true);
1886                 mWallpaperProgress.setOnCancelListener(this);
1887                 mWallpaperProgress.show();
1888                 start();
1889             }
1890             return true;
1891         }
1892
1893         public void run() {
1894             Drawable oldWallpaper = BrowserActivity.this.getWallpaper();
1895             try {
1896                 // TODO: This will cause the resource to be downloaded again, when we
1897                 // should in most cases be able to grab it from the cache. To fix this
1898                 // we should query WebCore to see if we can access a cached version and
1899                 // instead open an input stream on that. This pattern could also be used
1900                 // in the download manager where the same problem exists.
1901                 InputStream inputstream = mUrl.openStream();
1902                 if (inputstream != null) {
1903                     setWallpaper(inputstream);
1904                 }
1905             } catch (IOException e) {
1906                 Log.e(LOGTAG, "Unable to set new wallpaper");
1907                 // Act as though the user canceled the operation so we try to
1908                 // restore the old wallpaper.
1909                 mCanceled = true;
1910             }
1911
1912             if (mCanceled) {
1913                 // Restore the old wallpaper if the user cancelled whilst we were setting
1914                 // the new wallpaper.
1915                 int width = oldWallpaper.getIntrinsicWidth();
1916                 int height = oldWallpaper.getIntrinsicHeight();
1917                 Bitmap bm = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565);
1918                 Canvas canvas = new Canvas(bm);
1919                 oldWallpaper.setBounds(0, 0, width, height);
1920                 oldWallpaper.draw(canvas);
1921                 try {
1922                     setWallpaper(bm);
1923                 } catch (IOException e) {
1924                     Log.e(LOGTAG, "Unable to restore old wallpaper.");
1925                 }
1926                 mCanceled = false;
1927             }
1928
1929             if (mWallpaperProgress.isShowing()) {
1930                 mWallpaperProgress.dismiss();
1931             }
1932         }
1933     }
1934
1935     private void copy(CharSequence text) {
1936         try {
1937             IClipboard clip = IClipboard.Stub.asInterface(ServiceManager.getService("clipboard"));
1938             if (clip != null) {
1939                 clip.setClipboardText(text);
1940             }
1941         } catch (android.os.RemoteException e) {
1942             Log.e(LOGTAG, "Copy failed", e);
1943         }
1944     }
1945
1946     /**
1947      * Resets the browser title-view to whatever it must be
1948      * (for example, if we had a loading error)
1949      * When we have a new page, we call resetTitle, when we
1950      * have to reset the titlebar to whatever it used to be
1951      * (for example, if the user chose to stop loading), we
1952      * call resetTitleAndRevertLockIcon.
1953      */
1954     /* package */ void resetTitleAndRevertLockIcon() {
1955         mTabControl.getCurrentTab().revertLockIcon();
1956         updateLockIconToLatest();
1957         resetTitleIconAndProgress();
1958     }
1959
1960     /**
1961      * Reset the title, favicon, and progress.
1962      */
1963     private void resetTitleIconAndProgress() {
1964         WebView current = mTabControl.getCurrentWebView();
1965         if (current == null) {
1966             return;
1967         }
1968         resetTitleAndIcon(current);
1969         int progress = current.getProgress();
1970         current.getWebChromeClient().onProgressChanged(current, progress);
1971     }
1972
1973     // Reset the title and the icon based on the given item.
1974     private void resetTitleAndIcon(WebView view) {
1975         WebHistoryItem item = view.copyBackForwardList().getCurrentItem();
1976         if (item != null) {
1977             setUrlTitle(item.getUrl(), item.getTitle());
1978             setFavicon(item.getFavicon());
1979         } else {
1980             setUrlTitle(null, null);
1981             setFavicon(null);
1982         }
1983     }
1984
1985     /**
1986      * Sets a title composed of the URL and the title string.
1987      * @param url The URL of the site being loaded.
1988      * @param title The title of the site being loaded.
1989      */
1990     void setUrlTitle(String url, String title) {
1991         mUrl = url;
1992         mTitle = title;
1993
1994         // If we are in voice search mode, the title has already been set.
1995         if (mTabControl.getCurrentTab().isInVoiceSearchMode()) return;
1996         mTitleBar.setDisplayTitle(url);
1997         mFakeTitleBar.setDisplayTitle(url);
1998     }
1999
2000     /**
2001      * @param url The URL to build a title version of the URL from.
2002      * @return The title version of the URL or null if fails.
2003      * The title version of the URL can be either the URL hostname,
2004      * or the hostname with an "https://" prefix (for secure URLs),
2005      * or an empty string if, for example, the URL in question is a
2006      * file:// URL with no hostname.
2007      */
2008     /* package */ static String buildTitleUrl(String url) {
2009         String titleUrl = null;
2010
2011         if (url != null) {
2012             try {
2013                 // parse the url string
2014                 URL urlObj = new URL(url);
2015                 if (urlObj != null) {
2016                     titleUrl = "";
2017
2018                     String protocol = urlObj.getProtocol();
2019                     String host = urlObj.getHost();
2020
2021                     if (host != null && 0 < host.length()) {
2022                         titleUrl = host;
2023                         if (protocol != null) {
2024                             // if a secure site, add an "https://" prefix!
2025                             if (protocol.equalsIgnoreCase("https")) {
2026                                 titleUrl = protocol + "://" + host;
2027                             }
2028                         }
2029                     }
2030                 }
2031             } catch (MalformedURLException e) {}
2032         }
2033
2034         return titleUrl;
2035     }
2036
2037     // Set the favicon in the title bar.
2038     void setFavicon(Bitmap icon) {
2039         mTitleBar.setFavicon(icon);
2040         mFakeTitleBar.setFavicon(icon);
2041     }
2042
2043     /**
2044      * Close the tab, remove its associated title bar, and adjust mTabControl's
2045      * current tab to a valid value.
2046      */
2047     /* package */ void closeTab(Tab t) {
2048         int currentIndex = mTabControl.getCurrentIndex();
2049         int removeIndex = mTabControl.getTabIndex(t);
2050         mTabControl.removeTab(t);
2051         if (currentIndex >= removeIndex && currentIndex != 0) {
2052             currentIndex--;
2053         }
2054         mTabControl.setCurrentTab(mTabControl.getTab(currentIndex));
2055         resetTitleIconAndProgress();
2056     }
2057
2058     /* package */ void goBackOnePageOrQuit() {
2059         Tab current = mTabControl.getCurrentTab();
2060         if (current == null) {
2061             /*
2062              * Instead of finishing the activity, simply push this to the back
2063              * of the stack and let ActivityManager to choose the foreground
2064              * activity. As BrowserActivity is singleTask, it will be always the
2065              * root of the task. So we can use either true or false for
2066              * moveTaskToBack().
2067              */
2068             moveTaskToBack(true);
2069             return;
2070         }
2071         WebView w = current.getWebView();
2072         if (w.canGoBack()) {
2073             w.goBack();
2074         } else {
2075             // Check to see if we are closing a window that was created by
2076             // another window. If so, we switch back to that window.
2077             Tab parent = current.getParentTab();
2078             if (parent != null) {
2079                 switchToTab(mTabControl.getTabIndex(parent));
2080                 // Now we close the other tab
2081                 closeTab(current);
2082             } else {
2083                 if (current.closeOnExit()) {
2084                     // force the tab's inLoad() to be false as we are going to
2085                     // either finish the activity or remove the tab. This will
2086                     // ensure pauseWebViewTimers() taking action.
2087                     mTabControl.getCurrentTab().clearInLoad();
2088                     if (mTabControl.getTabCount() == 1) {
2089                         finish();
2090                         return;
2091                     }
2092                     // call pauseWebViewTimers() now, we won't be able to call
2093                     // it in onPause() as the WebView won't be valid.
2094                     // Temporarily change mActivityInPause to be true as
2095                     // pauseWebViewTimers() will do nothing if mActivityInPause
2096                     // is false.
2097                     boolean savedState = mActivityInPause;
2098                     if (savedState) {
2099                         Log.e(LOGTAG, "BrowserActivity is already paused "
2100                                 + "while handing goBackOnePageOrQuit.");
2101                     }
2102                     mActivityInPause = true;
2103                     pauseWebViewTimers();
2104                     mActivityInPause = savedState;
2105                     removeTabFromContentView(current);
2106                     mTabControl.removeTab(current);
2107                 }
2108                 /*
2109                  * Instead of finishing the activity, simply push this to the back
2110                  * of the stack and let ActivityManager to choose the foreground
2111                  * activity. As BrowserActivity is singleTask, it will be always the
2112                  * root of the task. So we can use either true or false for
2113                  * moveTaskToBack().
2114                  */
2115                 moveTaskToBack(true);
2116             }
2117         }
2118     }
2119
2120     boolean isMenuDown() {
2121         return mMenuIsDown;
2122     }
2123
2124     @Override
2125     public boolean onKeyDown(int keyCode, KeyEvent event) {
2126         // Even if MENU is already held down, we need to call to super to open
2127         // the IME on long press.
2128         if (KeyEvent.KEYCODE_MENU == keyCode) {
2129             mMenuIsDown = true;
2130             return super.onKeyDown(keyCode, event);
2131         }
2132         // The default key mode is DEFAULT_KEYS_SEARCH_LOCAL. As the MENU is
2133         // still down, we don't want to trigger the search. Pretend to consume
2134         // the key and do nothing.
2135         if (mMenuIsDown) return true;
2136
2137         switch(keyCode) {
2138             case KeyEvent.KEYCODE_SPACE:
2139                 // WebView/WebTextView handle the keys in the KeyDown. As
2140                 // the Activity's shortcut keys are only handled when WebView
2141                 // doesn't, have to do it in onKeyDown instead of onKeyUp.
2142                 if (event.isShiftPressed()) {
2143                     getTopWindow().pageUp(false);
2144                 } else {
2145                     getTopWindow().pageDown(false);
2146                 }
2147                 return true;
2148             case KeyEvent.KEYCODE_BACK:
2149                 if (event.getRepeatCount() == 0) {
2150                     event.startTracking();
2151                     return true;
2152                 } else if (mCustomView == null && mActiveTabsPage == null
2153                         && event.isLongPress()) {
2154                     bookmarksOrHistoryPicker(true);
2155                     return true;
2156                 }
2157                 break;
2158         }
2159         return super.onKeyDown(keyCode, event);
2160     }
2161
2162     @Override
2163     public boolean onKeyUp(int keyCode, KeyEvent event) {
2164         switch(keyCode) {
2165             case KeyEvent.KEYCODE_MENU:
2166                 mMenuIsDown = false;
2167                 break;
2168             case KeyEvent.KEYCODE_BACK:
2169                 if (event.isTracking() && !event.isCanceled()) {
2170                     if (mCustomView != null) {
2171                         // if a custom view is showing, hide it
2172                         mTabControl.getCurrentWebView().getWebChromeClient()
2173                                 .onHideCustomView();
2174                     } else if (mActiveTabsPage != null) {
2175                         // if tab page is showing, hide it
2176                         removeActiveTabPage(true);
2177                     } else {
2178                         WebView subwindow = mTabControl.getCurrentSubWindow();
2179                         if (subwindow != null) {
2180                             if (subwindow.canGoBack()) {
2181                                 subwindow.goBack();
2182                             } else {
2183                                 dismissSubWindow(mTabControl.getCurrentTab());
2184                             }
2185                         } else {
2186                             goBackOnePageOrQuit();
2187                         }
2188                     }
2189                     return true;
2190                 }
2191                 break;
2192         }
2193         return super.onKeyUp(keyCode, event);
2194     }
2195
2196     /* package */ void stopLoading() {
2197         mDidStopLoad = true;
2198         resetTitleAndRevertLockIcon();
2199         WebView w = getTopWindow();
2200         w.stopLoading();
2201         // FIXME: before refactor, it is using mWebViewClient. So I keep the
2202         // same logic here. But for subwindow case, should we call into the main
2203         // WebView's onPageFinished as we never call its onPageStarted and if
2204         // the page finishes itself, we don't call onPageFinished.
2205         mTabControl.getCurrentWebView().getWebViewClient().onPageFinished(w,
2206                 w.getUrl());
2207
2208         cancelStopToast();
2209         mStopToast = Toast
2210                 .makeText(this, R.string.stopping, Toast.LENGTH_SHORT);
2211         mStopToast.show();
2212     }
2213
2214     boolean didUserStopLoading() {
2215         return mDidStopLoad;
2216     }
2217
2218     private void cancelStopToast() {
2219         if (mStopToast != null) {
2220             mStopToast.cancel();
2221             mStopToast = null;
2222         }
2223     }
2224
2225     // called by a UI or non-UI thread to post the message
2226     public void postMessage(int what, int arg1, int arg2, Object obj,
2227             long delayMillis) {
2228         mHandler.sendMessageDelayed(mHandler.obtainMessage(what, arg1, arg2,
2229                 obj), delayMillis);
2230     }
2231
2232     // called by a UI or non-UI thread to remove the message
2233     void removeMessages(int what, Object object) {
2234         mHandler.removeMessages(what, object);
2235     }
2236
2237     // public message ids
2238     public final static int LOAD_URL                = 1001;
2239     public final static int STOP_LOAD               = 1002;
2240
2241     // Message Ids
2242     private static final int FOCUS_NODE_HREF         = 102;
2243     private static final int RELEASE_WAKELOCK        = 107;
2244
2245     static final int UPDATE_BOOKMARK_THUMBNAIL       = 108;
2246
2247     // Private handler for handling javascript and saving passwords
2248     private Handler mHandler = new Handler() {
2249
2250         public void handleMessage(Message msg) {
2251             switch (msg.what) {
2252                 case FOCUS_NODE_HREF:
2253                 {
2254                     String url = (String) msg.getData().get("url");
2255                     String title = (String) msg.getData().get("title");
2256                     if (url == null || url.length() == 0) {
2257                         break;
2258                     }
2259                     HashMap focusNodeMap = (HashMap) msg.obj;
2260                     WebView view = (WebView) focusNodeMap.get("webview");
2261                     // Only apply the action if the top window did not change.
2262                     if (getTopWindow() != view) {
2263                         break;
2264                     }
2265                     switch (msg.arg1) {
2266                         case R.id.open_context_menu_id:
2267                         case R.id.view_image_context_menu_id:
2268                             loadUrlFromContext(getTopWindow(), url);
2269                             break;
2270                         case R.id.open_newtab_context_menu_id:
2271                             final Tab parent = mTabControl.getCurrentTab();
2272                             final Tab newTab = openTab(url);
2273                             if (newTab != parent) {
2274                                 parent.addChildTab(newTab);
2275                             }
2276                             break;
2277                         case R.id.bookmark_context_menu_id:
2278                             Intent intent = new Intent(BrowserActivity.this,
2279                                     AddBookmarkPage.class);
2280                             intent.putExtra("url", url);
2281                             intent.putExtra("title", title);
2282                             startActivity(intent);
2283                             break;
2284                         case R.id.share_link_context_menu_id:
2285                             // See if this site has been visited before
2286                             StringBuilder sb = new StringBuilder(
2287                                     Browser.BookmarkColumns.URL + " = ");
2288                             DatabaseUtils.appendEscapedSQLString(sb, url);
2289                             Cursor c = mResolver.query(Browser.BOOKMARKS_URI,
2290                                     Browser.HISTORY_PROJECTION,
2291                                     sb.toString(),
2292                                     null,
2293                                     null);
2294                             if (c.moveToFirst()) {
2295                                 // The site has been visited before, so grab the
2296                                 // info from the database.
2297                                 Bitmap favicon = null;
2298                                 Bitmap thumbnail = null;
2299                                 String linkTitle = c.getString(Browser.
2300                                         HISTORY_PROJECTION_TITLE_INDEX);
2301                                 byte[] data = c.getBlob(Browser.
2302                                         HISTORY_PROJECTION_FAVICON_INDEX);
2303                                 if (data != null) {
2304                                     favicon = BitmapFactory.decodeByteArray(
2305                                             data, 0, data.length);
2306                                 }
2307                                 data = c.getBlob(Browser.
2308                                         HISTORY_PROJECTION_THUMBNAIL_INDEX);
2309                                 if (data != null) {
2310                                     thumbnail = BitmapFactory.decodeByteArray(
2311                                             data, 0, data.length);
2312                                 }
2313                                 sharePage(BrowserActivity.this,
2314                                         linkTitle, url, favicon, thumbnail);
2315                             } else {
2316                                 Browser.sendString(BrowserActivity.this, url,
2317                                         getString(
2318                                         R.string.choosertitle_sharevia));
2319                             }
2320                             break;
2321                         case R.id.copy_link_context_menu_id:
2322                             copy(url);
2323                             break;
2324                         case R.id.save_link_context_menu_id:
2325                         case R.id.download_context_menu_id:
2326                             onDownloadStartNoStream(url, null, null, null, -1);
2327                             break;
2328                     }
2329                     break;
2330                 }
2331
2332                 case LOAD_URL:
2333                     loadUrlFromContext(getTopWindow(), (String) msg.obj);
2334                     break;
2335
2336                 case STOP_LOAD:
2337                     stopLoading();
2338                     break;
2339
2340                 case RELEASE_WAKELOCK:
2341                     if (mWakeLock.isHeld()) {
2342                         mWakeLock.release();
2343                         // if we reach here, Browser should be still in the
2344                         // background loading after WAKELOCK_TIMEOUT (5-min).
2345                         // To avoid burning the battery, stop loading.
2346                         mTabControl.stopAllLoading();
2347                     }
2348                     break;
2349
2350                 case UPDATE_BOOKMARK_THUMBNAIL:
2351                     WebView view = (WebView) msg.obj;
2352                     if (view != null) {
2353                         updateScreenshot(view);
2354                     }
2355                     break;
2356             }
2357         }
2358     };
2359
2360     /**
2361      * Share a page, providing the title, url, favicon, and a screenshot.  Uses
2362      * an {@link Intent} to launch the Activity chooser.
2363      * @param c Context used to launch a new Activity.
2364      * @param title Title of the page.  Stored in the Intent with
2365      *          {@link Intent#EXTRA_SUBJECT}
2366      * @param url URL of the page.  Stored in the Intent with
2367      *          {@link Intent#EXTRA_TEXT}
2368      * @param favicon Bitmap of the favicon for the page.  Stored in the Intent
2369      *          with {@link Browser#EXTRA_SHARE_FAVICON}
2370      * @param screenshot Bitmap of a screenshot of the page.  Stored in the
2371      *          Intent with {@link Browser#EXTRA_SHARE_SCREENSHOT}
2372      */
2373     public static final void sharePage(Context c, String title, String url,
2374             Bitmap favicon, Bitmap screenshot) {
2375         Intent send = new Intent(Intent.ACTION_SEND);
2376         send.setType("text/plain");
2377         send.putExtra(Intent.EXTRA_TEXT, url);
2378         send.putExtra(Intent.EXTRA_SUBJECT, title);
2379         send.putExtra(Browser.EXTRA_SHARE_FAVICON, favicon);
2380         send.putExtra(Browser.EXTRA_SHARE_SCREENSHOT, screenshot);
2381         try {
2382             c.startActivity(Intent.createChooser(send, c.getString(
2383                     R.string.choosertitle_sharevia)));
2384         } catch(android.content.ActivityNotFoundException ex) {
2385             // if no app handles it, do nothing
2386         }
2387     }
2388
2389     private void updateScreenshot(WebView view) {
2390         // If this is a bookmarked site, add a screenshot to the database.
2391         // FIXME: When should we update?  Every time?
2392         // FIXME: Would like to make sure there is actually something to
2393         // draw, but the API for that (WebViewCore.pictureReady()) is not
2394         // currently accessible here.
2395
2396         final Bitmap bm = createScreenshot(view);
2397         if (bm == null) {
2398             return;
2399         }
2400
2401         final ContentResolver cr = getContentResolver();
2402         final String url = view.getUrl();
2403         final String originalUrl = view.getOriginalUrl();
2404
2405         new AsyncTask<Void, Void, Void>() {
2406             @Override
2407             protected Void doInBackground(Void... unused) {
2408                 Cursor c = null;
2409                 try {
2410                     c = BrowserBookmarksAdapter.queryBookmarksForUrl(
2411                             cr, originalUrl, url, true);
2412                     if (c != null) {
2413                         if (c.moveToFirst()) {
2414                             ContentValues values = new ContentValues();
2415                             final ByteArrayOutputStream os
2416                                     = new ByteArrayOutputStream();
2417                             bm.compress(Bitmap.CompressFormat.PNG, 100, os);
2418                             values.put(Browser.BookmarkColumns.THUMBNAIL,
2419                                     os.toByteArray());
2420                             do {
2421                                 cr.update(ContentUris.withAppendedId(
2422                                         Browser.BOOKMARKS_URI, c.getInt(0)),
2423                                         values, null, null);
2424                             } while (c.moveToNext());
2425                         }
2426                     }
2427                 } catch (IllegalStateException e) {
2428                     // Ignore
2429                 } finally {
2430                     if (c != null) c.close();
2431                 }
2432                 return null;
2433             }
2434         }.execute();
2435     }
2436
2437     /**
2438      * Values for the size of the thumbnail created when taking a screenshot.
2439      * Lazily initialized.  Instead of using these directly, use
2440      * getDesiredThumbnailWidth() or getDesiredThumbnailHeight().
2441      */
2442     private static int THUMBNAIL_WIDTH = 0;
2443     private static int THUMBNAIL_HEIGHT = 0;
2444
2445     /**
2446      * Return the desired width for thumbnail screenshots, which are stored in
2447      * the database, and used on the bookmarks screen.
2448      * @param context Context for finding out the density of the screen.
2449      * @return int desired width for thumbnail screenshot.
2450      */
2451     /* package */ static int getDesiredThumbnailWidth(Context context) {
2452         if (THUMBNAIL_WIDTH == 0) {
2453             float density = context.getResources().getDisplayMetrics().density;
2454             THUMBNAIL_WIDTH = (int) (90 * density);
2455             THUMBNAIL_HEIGHT = (int) (80 * density);
2456         }
2457         return THUMBNAIL_WIDTH;
2458     }
2459
2460     /**
2461      * Return the desired height for thumbnail screenshots, which are stored in
2462      * the database, and used on the bookmarks screen.
2463      * @param context Context for finding out the density of the screen.
2464      * @return int desired height for thumbnail screenshot.
2465      */
2466     /* package */ static int getDesiredThumbnailHeight(Context context) {
2467         // To ensure that they are both initialized.
2468         getDesiredThumbnailWidth(context);
2469         return THUMBNAIL_HEIGHT;
2470     }
2471
2472     private Bitmap createScreenshot(WebView view) {
2473         Picture thumbnail = view.capturePicture();
2474         if (thumbnail == null) {
2475             return null;
2476         }
2477         Bitmap bm = Bitmap.createBitmap(getDesiredThumbnailWidth(this),
2478                 getDesiredThumbnailHeight(this), Bitmap.Config.RGB_565);
2479         Canvas canvas = new Canvas(bm);
2480         // May need to tweak these values to determine what is the
2481         // best scale factor
2482         int thumbnailWidth = thumbnail.getWidth();
2483         int thumbnailHeight = thumbnail.getHeight();
2484         float scaleFactorX = 1.0f;
2485         float scaleFactorY = 1.0f;
2486         if (thumbnailWidth > 0) {
2487             scaleFactorX = (float) getDesiredThumbnailWidth(this) /
2488                     (float)thumbnailWidth;
2489         } else {
2490             return null;
2491         }
2492
2493         if (view.getWidth() > view.getHeight() &&
2494                 thumbnailHeight < view.getHeight() && thumbnailHeight > 0) {
2495             // If the device is in landscape and the page is shorter
2496             // than the height of the view, stretch the thumbnail to fill the
2497             // space.
2498             scaleFactorY = (float) getDesiredThumbnailHeight(this) /
2499                     (float)thumbnailHeight;
2500         } else {
2501             // In the portrait case, this looks nice.
2502             scaleFactorY = scaleFactorX;
2503         }
2504
2505         canvas.scale(scaleFactorX, scaleFactorY);
2506
2507         thumbnail.draw(canvas);
2508         return bm;
2509     }
2510
2511     // -------------------------------------------------------------------------
2512     // Helper function for WebViewClient.
2513     //-------------------------------------------------------------------------
2514
2515     // Use in overrideUrlLoading
2516     /* package */ final static String SCHEME_WTAI = "wtai://wp/";
2517     /* package */ final static String SCHEME_WTAI_MC = "wtai://wp/mc;";
2518     /* package */ final static String SCHEME_WTAI_SD = "wtai://wp/sd;";
2519     /* package */ final static String SCHEME_WTAI_AP = "wtai://wp/ap;";
2520
2521     // Keep this initial progress in sync with initialProgressValue (* 100)
2522     // in ProgressTracker.cpp
2523     private final static int INITIAL_PROGRESS = 10;
2524
2525     void onPageStarted(WebView view, String url, Bitmap favicon) {
2526         // when BrowserActivity just starts, onPageStarted may be called before
2527         // onResume as it is triggered from onCreate. Call resumeWebViewTimers
2528         // to start the timer. As we won't switch tabs while an activity is in
2529         // pause state, we can ensure calling resume and pause in pair.
2530         if (mActivityInPause) resumeWebViewTimers();
2531
2532         resetLockIcon(url);
2533         setUrlTitle(url, null);
2534         setFavicon(favicon);
2535         // Show some progress so that the user knows the page is beginning to
2536         // load
2537         onProgressChanged(view, INITIAL_PROGRESS);
2538         mDidStopLoad = false;
2539         if (!mIsNetworkUp) createAndShowNetworkDialog();
2540         closeDialogs();
2541         if (mSettings.isTracing()) {
2542             String host;
2543             try {
2544                 WebAddress uri = new WebAddress(url);
2545                 host = uri.mHost;
2546             } catch (android.net.ParseException ex) {
2547                 host = "browser";
2548             }
2549             host = host.replace('.', '_');
2550             host += ".trace";
2551             mInTrace = true;
2552             Debug.startMethodTracing(host, 20 * 1024 * 1024);
2553         }
2554
2555         // Performance probe
2556         if (false) {
2557             mStart = SystemClock.uptimeMillis();
2558             mProcessStart = Process.getElapsedCpuTime();
2559             long[] sysCpu = new long[7];
2560             if (Process.readProcFile("/proc/stat", SYSTEM_CPU_FORMAT, null,
2561                     sysCpu, null)) {
2562                 mUserStart = sysCpu[0] + sysCpu[1];
2563                 mSystemStart = sysCpu[2];
2564                 mIdleStart = sysCpu[3];
2565                 mIrqStart = sysCpu[4] + sysCpu[5] + sysCpu[6];
2566             }
2567             mUiStart = SystemClock.currentThreadTimeMillis();
2568         }
2569     }
2570
2571     void onPageFinished(WebView view, String url) {
2572         // Reset the title and icon in case we stopped a provisional load.
2573         resetTitleAndIcon(view);
2574         // Update the lock icon image only once we are done loading
2575         updateLockIconToLatest();
2576         // pause the WebView timer and release the wake lock if it is finished
2577         // while BrowserActivity is in pause state.
2578         if (mActivityInPause && pauseWebViewTimers()) {
2579             if (mWakeLock.isHeld()) {
2580                 mHandler.removeMessages(RELEASE_WAKELOCK);
2581                 mWakeLock.release();
2582             }
2583         }
2584
2585         // Performance probe
2586         if (false) {
2587             long[] sysCpu = new long[7];
2588             if (Process.readProcFile("/proc/stat", SYSTEM_CPU_FORMAT, null,
2589                     sysCpu, null)) {
2590                 String uiInfo = "UI thread used "
2591                         + (SystemClock.currentThreadTimeMillis() - mUiStart)
2592                         + " ms";
2593                 if (LOGD_ENABLED) {
2594                     Log.d(LOGTAG, uiInfo);
2595                 }
2596                 //The string that gets written to the log
2597                 String performanceString = "It took total "
2598                         + (SystemClock.uptimeMillis() - mStart)
2599                         + " ms clock time to load the page."
2600                         + "\nbrowser process used "
2601                         + (Process.getElapsedCpuTime() - mProcessStart)
2602                         + " ms, user processes used "
2603                         + (sysCpu[0] + sysCpu[1] - mUserStart) * 10
2604                         + " ms, kernel used "
2605                         + (sysCpu[2] - mSystemStart) * 10
2606                         + " ms, idle took " + (sysCpu[3] - mIdleStart) * 10
2607                         + " ms and irq took "
2608                         + (sysCpu[4] + sysCpu[5] + sysCpu[6] - mIrqStart)
2609                         * 10 + " ms, " + uiInfo;
2610                 if (LOGD_ENABLED) {
2611                     Log.d(LOGTAG, performanceString + "\nWebpage: " + url);
2612                 }
2613                 if (url != null) {
2614                     // strip the url to maintain consistency
2615                     String newUrl = new String(url);
2616                     if (newUrl.startsWith("http://www.")) {
2617                         newUrl = newUrl.substring(11);
2618                     } else if (newUrl.startsWith("http://")) {
2619                         newUrl = newUrl.substring(7);
2620                     } else if (newUrl.startsWith("https://www.")) {
2621                         newUrl = newUrl.substring(12);
2622                     } else if (newUrl.startsWith("https://")) {
2623                         newUrl = newUrl.substring(8);
2624                     }
2625                     if (LOGD_ENABLED) {
2626                         Log.d(LOGTAG, newUrl + " loaded");
2627                     }
2628                 }
2629             }
2630          }
2631
2632         if (mInTrace) {
2633             mInTrace = false;
2634             Debug.stopMethodTracing();
2635         }
2636     }
2637
2638     boolean shouldOverrideUrlLoading(WebView view, String url) {
2639         if (url.startsWith(SCHEME_WTAI)) {
2640             // wtai://wp/mc;number
2641             // number=string(phone-number)
2642             if (url.startsWith(SCHEME_WTAI_MC)) {
2643                 Intent intent = new Intent(Intent.ACTION_VIEW,
2644                         Uri.parse(WebView.SCHEME_TEL +
2645                         url.substring(SCHEME_WTAI_MC.length())));
2646                 startActivity(intent);
2647                 return true;
2648             }
2649             // wtai://wp/sd;dtmf
2650             // dtmf=string(dialstring)
2651             if (url.startsWith(SCHEME_WTAI_SD)) {
2652                 // TODO: only send when there is active voice connection
2653                 return false;
2654             }
2655             // wtai://wp/ap;number;name
2656             // number=string(phone-number)
2657             // name=string
2658             if (url.startsWith(SCHEME_WTAI_AP)) {
2659                 // TODO
2660                 return false;
2661             }
2662         }
2663
2664         // The "about:" schemes are internal to the browser; don't want these to
2665         // be dispatched to other apps. Similarly, javascript: schemas are private
2666         // to the page
2667         if (url.startsWith("about:") || url.startsWith("javascript:")) {
2668             return false;
2669         }
2670
2671         Intent intent;
2672         // perform generic parsing of the URI to turn it into an Intent.
2673         try {
2674             intent = Intent.parseUri(url, Intent.URI_INTENT_SCHEME);
2675         } catch (URISyntaxException ex) {
2676             Log.w("Browser", "Bad URI " + url + ": " + ex.getMessage());
2677             return false;
2678         }
2679
2680         // check whether the intent can be resolved. If not, we will see
2681         // whether we can download it from the Market.
2682         if (getPackageManager().resolveActivity(intent, 0) == null) {
2683             String packagename = intent.getPackage();
2684             if (packagename != null) {
2685                 intent = new Intent(Intent.ACTION_VIEW, Uri
2686                         .parse("market://search?q=pname:" + packagename));
2687                 intent.addCategory(Intent.CATEGORY_BROWSABLE);
2688                 startActivity(intent);
2689                 return true;
2690             } else {
2691                 return false;
2692             }
2693         }
2694
2695         // sanitize the Intent, ensuring web pages can not bypass browser
2696         // security (only access to BROWSABLE activities).
2697         intent.addCategory(Intent.CATEGORY_BROWSABLE);
2698         intent.setComponent(null);
2699         try {
2700             if (startActivityIfNeeded(intent, -1)) {
2701                 return true;
2702             }
2703         } catch (ActivityNotFoundException ex) {
2704             // ignore the error. If no application can handle the URL,
2705             // eg about:blank, assume the browser can handle it.
2706         }
2707
2708         if (mMenuIsDown) {
2709             openTab(url);
2710             closeOptionsMenu();
2711             return true;
2712         }
2713         return false;
2714     }
2715
2716     // -------------------------------------------------------------------------
2717     // Helper function for WebChromeClient
2718     // -------------------------------------------------------------------------
2719
2720     void onProgressChanged(WebView view, int newProgress) {
2721         mFakeTitleBar.setProgress(newProgress);
2722
2723         if (newProgress == 100) {
2724             // onProgressChanged() may continue to be called after the main
2725             // frame has finished loading, as any remaining sub frames continue
2726             // to load. We'll only get called once though with newProgress as
2727             // 100 when everything is loaded. (onPageFinished is called once
2728             // when the main frame completes loading regardless of the state of
2729             // any sub frames so calls to onProgressChanges may continue after
2730             // onPageFinished has executed)
2731             if (mInLoad) {
2732                 mInLoad = false;
2733                 updateInLoadMenuItems();
2734                 // If the options menu is open, leave the title bar
2735                 if (!mOptionsMenuOpen || !mIconView) {
2736                     hideFakeTitleBar();
2737                 }
2738             }
2739         } else {
2740             if (!mInLoad) {
2741                 // onPageFinished may have already been called but a subframe is
2742                 // still loading and updating the progress. Reset mInLoad and
2743                 // update the menu items.
2744                 mInLoad = true;
2745                 updateInLoadMenuItems();
2746             }
2747             // When the page first begins to load, the Activity may still be
2748             // paused, in which case showFakeTitleBar will do nothing.  Call
2749             // again as the page continues to load so that it will be shown.
2750             // (Calling it will the fake title bar is already showing will also
2751             // do nothing.
2752             if (!mOptionsMenuOpen || mIconView) {
2753                 // This page has begun to load, so show the title bar
2754                 showFakeTitleBar();
2755             }
2756         }
2757     }
2758
2759     void onShowCustomView(View view, WebChromeClient.CustomViewCallback callback) {
2760         // if a view already exists then immediately terminate the new one
2761         if (mCustomView != null) {
2762             callback.onCustomViewHidden();
2763             return;
2764         }
2765
2766         // Add the custom view to its container.
2767         mCustomViewContainer.addView(view, COVER_SCREEN_GRAVITY_CENTER);
2768         mCustomView = view;
2769         mCustomViewCallback = callback;
2770         // Save the menu state and set it to empty while the custom
2771         // view is showing.
2772         mOldMenuState = mMenuState;
2773         mMenuState = EMPTY_MENU;
2774         // Hide the content view.
2775         mContentView.setVisibility(View.GONE);
2776         // Finally show the custom view container.
2777         setStatusBarVisibility(false);
2778         mCustomViewContainer.setVisibility(View.VISIBLE);
2779         mCustomViewContainer.bringToFront();
2780     }
2781
2782     void onHideCustomView() {
2783         if (mCustomView == null)
2784             return;
2785         // Hide the custom view.
2786         mCustomView.setVisibility(View.GONE);
2787         // Remove the custom view from its container.
2788         mCustomViewContainer.removeView(mCustomView);
2789         mCustomView = null;
2790         // Reset the old menu state.
2791         mMenuState = mOldMenuState;
2792         mOldMenuState = EMPTY_MENU;
2793         mCustomViewContainer.setVisibility(View.GONE);
2794         mCustomViewCallback.onCustomViewHidden();
2795         // Show the content view.
2796         setStatusBarVisibility(true);
2797         mContentView.setVisibility(View.VISIBLE);
2798     }
2799
2800     Bitmap getDefaultVideoPoster() {
2801         if (mDefaultVideoPoster == null) {
2802             mDefaultVideoPoster = BitmapFactory.decodeResource(
2803                     getResources(), R.drawable.default_video_poster);
2804         }
2805         return mDefaultVideoPoster;
2806     }
2807
2808     View getVideoLoadingProgressView() {
2809         if (mVideoProgressView == null) {
2810             LayoutInflater inflater = LayoutInflater.from(BrowserActivity.this);
2811             mVideoProgressView = inflater.inflate(
2812                     R.layout.video_loading_progress, null);
2813         }
2814         return mVideoProgressView;
2815     }
2816
2817     /*
2818      * The Object used to inform the WebView of the file to upload.
2819      */
2820     private ValueCallback<Uri> mUploadMessage;
2821
2822     void openFileChooser(ValueCallback<Uri> uploadMsg) {
2823         if (mUploadMessage != null) return;
2824         mUploadMessage = uploadMsg;
2825         Intent i = new Intent(Intent.ACTION_GET_CONTENT);
2826         i.addCategory(Intent.CATEGORY_OPENABLE);
2827         i.setType("*/*");
2828         BrowserActivity.this.startActivityForResult(Intent.createChooser(i,
2829                 getString(R.string.choose_upload)), FILE_SELECTED);
2830     }
2831
2832     // -------------------------------------------------------------------------
2833     // Implement functions for DownloadListener
2834     // -------------------------------------------------------------------------
2835
2836     /**
2837      * Notify the host application a download should be done, or that
2838      * the data should be streamed if a streaming viewer is available.
2839      * @param url The full url to the content that should be downloaded
2840      * @param contentDisposition Content-disposition http header, if
2841      *                           present.
2842      * @param mimetype The mimetype of the content reported by the server
2843      * @param contentLength The file size reported by the server
2844      */
2845     public void onDownloadStart(String url, String userAgent,
2846             String contentDisposition, String mimetype, long contentLength) {
2847         // if we're dealing wih A/V content that's not explicitly marked
2848         //     for download, check if it's streamable.
2849         if (contentDisposition == null
2850                 || !contentDisposition.regionMatches(
2851                         true, 0, "attachment", 0, 10)) {
2852             // query the package manager to see if there's a registered handler
2853             //     that matches.
2854             Intent intent = new Intent(Intent.ACTION_VIEW);
2855             intent.setDataAndType(Uri.parse(url), mimetype);
2856             ResolveInfo info = getPackageManager().resolveActivity(intent,
2857                     PackageManager.MATCH_DEFAULT_ONLY);
2858             if (info != null) {
2859                 ComponentName myName = getComponentName();
2860                 // If we resolved to ourselves, we don't want to attempt to
2861                 // load the url only to try and download it again.
2862                 if (!myName.getPackageName().equals(
2863                         info.activityInfo.packageName)
2864                         || !myName.getClassName().equals(
2865                                 info.activityInfo.name)) {
2866                     // someone (other than us) knows how to handle this mime
2867                     // type with this scheme, don't download.
2868                     try {
2869                         startActivity(intent);
2870                         return;
2871                     } catch (ActivityNotFoundException ex) {
2872                         if (LOGD_ENABLED) {
2873                             Log.d(LOGTAG, "activity not found for " + mimetype
2874                                     + " over " + Uri.parse(url).getScheme(),
2875                                     ex);
2876                         }
2877                         // Best behavior is to fall back to a download in this
2878                         // case
2879                     }
2880                 }
2881             }
2882         }
2883         onDownloadStartNoStream(url, userAgent, contentDisposition, mimetype, contentLength);
2884     }
2885
2886     // This is to work around the fact that java.net.URI throws Exceptions
2887     // instead of just encoding URL's properly
2888     // Helper method for onDownloadStartNoStream
2889     private static String encodePath(String path) {
2890         char[] chars = path.toCharArray();
2891
2892         boolean needed = false;
2893         for (char c : chars) {
2894             if (c == '[' || c == ']') {
2895                 needed = true;
2896                 break;
2897             }
2898         }
2899         if (needed == false) {
2900             return path;
2901         }
2902
2903         StringBuilder sb = new StringBuilder("");
2904         for (char c : chars) {
2905             if (c == '[' || c == ']') {
2906                 sb.append('%');
2907                 sb.append(Integer.toHexString(c));
2908             } else {
2909                 sb.append(c);
2910             }
2911         }
2912
2913         return sb.toString();
2914     }
2915
2916     /**
2917      * Notify the host application a download should be done, even if there
2918      * is a streaming viewer available for thise type.
2919      * @param url The full url to the content that should be downloaded
2920      * @param contentDisposition Content-disposition http header, if
2921      *                           present.
2922      * @param mimetype The mimetype of the content reported by the server
2923      * @param contentLength The file size reported by the server
2924      */
2925     /*package */ void onDownloadStartNoStream(String url, String userAgent,
2926             String contentDisposition, String mimetype, long contentLength) {
2927
2928         String filename = URLUtil.guessFileName(url,
2929                 contentDisposition, mimetype);
2930
2931         // Check to see if we have an SDCard
2932         String status = Environment.getExternalStorageState();
2933         if (!status.equals(Environment.MEDIA_MOUNTED)) {
2934             int title;
2935             String msg;
2936
2937             // Check to see if the SDCard is busy, same as the music app
2938             if (status.equals(Environment.MEDIA_SHARED)) {
2939                 msg = getString(R.string.download_sdcard_busy_dlg_msg);
2940                 title = R.string.download_sdcard_busy_dlg_title;
2941             } else {
2942                 msg = getString(R.string.download_no_sdcard_dlg_msg, filename);
2943                 title = R.string.download_no_sdcard_dlg_title;
2944             }
2945
2946             new AlertDialog.Builder(this)
2947                 .setTitle(title)
2948                 .setIcon(android.R.drawable.ic_dialog_alert)
2949                 .setMessage(msg)
2950                 .setPositiveButton(R.string.ok, null)
2951                 .show();
2952             return;
2953         }
2954
2955         // java.net.URI is a lot stricter than KURL so we have to encode some
2956         // extra characters. Fix for b 2538060 and b 1634719
2957         WebAddress webAddress;
2958         try {
2959             webAddress = new WebAddress(url);
2960             webAddress.mPath = encodePath(webAddress.mPath);
2961         } catch (Exception e) {
2962             // This only happens for very bad urls, we want to chatch the
2963             // exception here
2964             Log.e(LOGTAG, "Exception trying to parse url:" + url);
2965             return;
2966         }
2967
2968         // XXX: Have to use the old url since the cookies were stored using the
2969         // old percent-encoded url.
2970         String cookies = CookieManager.getInstance().getCookie(url);
2971
2972         ContentValues values = new ContentValues();
2973         values.put(Downloads.Impl.COLUMN_URI, webAddress.toString());
2974         values.put(Downloads.Impl.COLUMN_COOKIE_DATA, cookies);
2975         values.put(Downloads.Impl.COLUMN_USER_AGENT, userAgent);
2976         values.put(Downloads.Impl.COLUMN_NOTIFICATION_PACKAGE,
2977                 getPackageName());
2978         values.put(Downloads.Impl.COLUMN_NOTIFICATION_CLASS,
2979                 OpenDownloadReceiver.class.getCanonicalName());
2980         values.put(Downloads.Impl.COLUMN_VISIBILITY,
2981                 Downloads.Impl.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
2982         values.put(Downloads.Impl.COLUMN_MIME_TYPE, mimetype);
2983         values.put(Downloads.Impl.COLUMN_FILE_NAME_HINT, filename);
2984         values.put(Downloads.Impl.COLUMN_DESCRIPTION, webAddress.mHost);
2985         if (contentLength > 0) {
2986             values.put(Downloads.Impl.COLUMN_TOTAL_BYTES, contentLength);
2987         }
2988         if (mimetype == null) {
2989             // We must have long pressed on a link or image to download it. We
2990             // are not sure of the mimetype in this case, so do a head request
2991             new FetchUrlMimeType(this).execute(values);
2992         } else {
2993             final Uri contentUri =
2994                     getContentResolver().insert(Downloads.Impl.CONTENT_URI, values);
2995         }
2996         Toast.makeText(this, R.string.download_pending, Toast.LENGTH_SHORT)
2997                 .show();
2998     }
2999
3000     // -------------------------------------------------------------------------
3001
3002     /**
3003      * Resets the lock icon. This method is called when we start a new load and
3004      * know the url to be loaded.
3005      */
3006     private void resetLockIcon(String url) {
3007         // Save the lock-icon state (we revert to it if the load gets cancelled)
3008         mTabControl.getCurrentTab().resetLockIcon(url);
3009         updateLockIconImage(LOCK_ICON_UNSECURE);
3010     }
3011
3012     /**
3013      * Update the lock icon to correspond to our latest state.
3014      */
3015     private void updateLockIconToLatest() {
3016         updateLockIconImage(mTabControl.getCurrentTab().getLockIconType());
3017     }
3018
3019     /**
3020      * Updates the lock-icon image in the title-bar.
3021      */
3022     private void updateLockIconImage(int lockIconType) {
3023         Drawable d = null;
3024         if (lockIconType == LOCK_ICON_SECURE) {
3025             d = mSecLockIcon;
3026         } else if (lockIconType == LOCK_ICON_MIXED) {
3027             d = mMixLockIcon;
3028         }
3029         mTitleBar.setLock(d);
3030         mFakeTitleBar.setLock(d);
3031     }
3032
3033     /**
3034      * Displays a page-info dialog.
3035      * @param tab The tab to show info about
3036      * @param fromShowSSLCertificateOnError The flag that indicates whether
3037      * this dialog was opened from the SSL-certificate-on-error dialog or
3038      * not. This is important, since we need to know whether to return to
3039      * the parent dialog or simply dismiss.
3040      */
3041     private void showPageInfo(final Tab tab,
3042                               final boolean fromShowSSLCertificateOnError) {
3043         final LayoutInflater factory = LayoutInflater
3044                 .from(this);
3045
3046         final View pageInfoView = factory.inflate(R.layout.page_info, null);
3047
3048         final WebView view = tab.getWebView();
3049
3050         String url = null;
3051         String title = null;
3052
3053         if (view == null) {
3054             url = tab.getUrl();
3055             title = tab.getTitle();
3056         } else if (view == mTabControl.getCurrentWebView()) {
3057              // Use the cached title and url if this is the current WebView
3058             url = mUrl;
3059             title = mTitle;
3060         } else {
3061             url = view.getUrl();
3062             title = view.getTitle();
3063         }
3064
3065         if (url == null) {
3066             url = "";
3067         }
3068         if (title == null) {
3069             title = "";
3070         }
3071
3072         ((TextView) pageInfoView.findViewById(R.id.address)).setText(url);
3073         ((TextView) pageInfoView.findViewById(R.id.title)).setText(title);
3074
3075         mPageInfoView = tab;
3076         mPageInfoFromShowSSLCertificateOnError = fromShowSSLCertificateOnError;
3077
3078         AlertDialog.Builder alertDialogBuilder =
3079             new AlertDialog.Builder(this)
3080             .setTitle(R.string.page_info).setIcon(android.R.drawable.ic_dialog_info)
3081             .setView(pageInfoView)
3082             .setPositiveButton(
3083                 R.string.ok,
3084                 new DialogInterface.OnClickListener() {
3085                     public void onClick(DialogInterface dialog,
3086                                         int whichButton) {
3087                         mPageInfoDialog = null;
3088                         mPageInfoView = null;
3089
3090                         // if we came here from the SSL error dialog
3091                         if (fromShowSSLCertificateOnError) {
3092                             // go back to the SSL error dialog
3093                             showSSLCertificateOnError(
3094                                 mSSLCertificateOnErrorView,
3095                                 mSSLCertificateOnErrorHandler,
3096                                 mSSLCertificateOnErrorError);
3097                         }
3098                     }
3099                 })
3100             .setOnCancelListener(
3101                 new DialogInterface.OnCancelListener() {
3102                     public void onCancel(DialogInterface dialog) {
3103                         mPageInfoDialog = null;
3104                         mPageInfoView = null;
3105
3106                         // if we came here from the SSL error dialog
3107                         if (fromShowSSLCertificateOnError) {
3108                             // go back to the SSL error dialog
3109                             showSSLCertificateOnError(
3110                                 mSSLCertificateOnErrorView,
3111                                 mSSLCertificateOnErrorHandler,
3112                                 mSSLCertificateOnErrorError);
3113                         }
3114                     }
3115                 });
3116
3117         // if we have a main top-level page SSL certificate set or a certificate
3118         // error
3119         if (fromShowSSLCertificateOnError ||
3120                 (view != null && view.getCertificate() != null)) {
3121             // add a 'View Certificate' button
3122             alertDialogBuilder.setNeutralButton(
3123                 R.string.view_certificate,
3124                 new DialogInterface.OnClickListener() {
3125                     public void onClick(DialogInterface dialog,
3126                                         int whichButton) {
3127                         mPageInfoDialog = null;
3128                         mPageInfoView = null;
3129
3130                         // if we came here from the SSL error dialog
3131                         if (fromShowSSLCertificateOnError) {
3132                             // go back to the SSL error dialog
3133                             showSSLCertificateOnError(
3134                                 mSSLCertificateOnErrorView,
3135                                 mSSLCertificateOnErrorHandler,
3136                                 mSSLCertificateOnErrorError);
3137                         } else {
3138                             // otherwise, display the top-most certificate from
3139                             // the chain
3140                             if (view.getCertificate() != null) {
3141                                 showSSLCertificate(tab);
3142                             }
3143                         }
3144                     }
3145                 });
3146         }
3147
3148         mPageInfoDialog = alertDialogBuilder.show();
3149     }
3150
3151        /**
3152      * Displays the main top-level page SSL certificate dialog
3153      * (accessible from the Page-Info dialog).
3154      * @param tab The tab to show certificate for.
3155      */
3156     private void showSSLCertificate(final Tab tab) {
3157         final View certificateView =
3158                 inflateCertificateView(tab.getWebView().getCertificate());
3159         if (certificateView == null) {
3160             return;
3161         }
3162
3163         LayoutInflater factory = LayoutInflater.from(this);
3164
3165         final LinearLayout placeholder =
3166                 (LinearLayout)certificateView.findViewById(R.id.placeholder);
3167
3168         LinearLayout ll = (LinearLayout) factory.inflate(
3169             R.layout.ssl_success, placeholder);
3170         ((TextView)ll.findViewById(R.id.success))
3171             .setText(R.string.ssl_certificate_is_valid);
3172
3173         mSSLCertificateView = tab;
3174         mSSLCertificateDialog =
3175             new AlertDialog.Builder(this)
3176                 .setTitle(R.string.ssl_certificate).setIcon(
3177                     R.drawable.ic_dialog_browser_certificate_secure)
3178                 .setView(certificateView)
3179                 .setPositiveButton(R.string.ok,
3180                         new DialogInterface.OnClickListener() {
3181                             public void onClick(DialogInterface dialog,
3182                                     int whichButton) {
3183                                 mSSLCertificateDialog = null;
3184                                 mSSLCertificateView = null;
3185
3186                                 showPageInfo(tab, false);
3187                             }
3188                         })
3189                 .setOnCancelListener(
3190                         new DialogInterface.OnCancelListener() {
3191                             public void onCancel(DialogInterface dialog) {
3192                                 mSSLCertificateDialog = null;
3193                                 mSSLCertificateView = null;
3194
3195                                 showPageInfo(tab, false);
3196                             }
3197                         })
3198                 .show();
3199     }
3200
3201     /**
3202      * Displays the SSL error certificate dialog.
3203      * @param view The target web-view.
3204      * @param handler The SSL error handler responsible for cancelling the
3205      * connection that resulted in an SSL error or proceeding per user request.
3206      * @param error The SSL error object.
3207      */
3208     void showSSLCertificateOnError(
3209         final WebView view, final SslErrorHandler handler, final SslError error) {
3210
3211         final View certificateView =
3212             inflateCertificateView(error.getCertificate());
3213         if (certificateView == null) {
3214             return;
3215         }
3216
3217         LayoutInflater factory = LayoutInflater.from(this);
3218
3219         final LinearLayout placeholder =
3220                 (LinearLayout)certificateView.findViewById(R.id.placeholder);
3221
3222         if (error.hasError(SslError.SSL_UNTRUSTED)) {
3223             LinearLayout ll = (LinearLayout)factory
3224                 .inflate(R.layout.ssl_warning, placeholder);
3225             ((TextView)ll.findViewById(R.id.warning))
3226                 .setText(R.string.ssl_untrusted);
3227         }
3228
3229         if (error.hasError(SslError.SSL_IDMISMATCH)) {
3230             LinearLayout ll = (LinearLayout)factory
3231                 .inflate(R.layout.ssl_warning, placeholder);
3232             ((TextView)ll.findViewById(R.id.warning))
3233                 .setText(R.string.ssl_mismatch);
3234         }
3235
3236         if (error.hasError(SslError.SSL_EXPIRED)) {
3237             LinearLayout ll = (LinearLayout)factory
3238                 .inflate(R.layout.ssl_warning, placeholder);
3239             ((TextView)ll.findViewById(R.id.warning))
3240                 .setText(R.string.ssl_expired);
3241         }
3242
3243         if (error.hasError(SslError.SSL_NOTYETVALID)) {
3244             LinearLayout ll = (LinearLayout)factory
3245                 .inflate(R.layout.ssl_warning, placeholder);
3246             ((TextView)ll.findViewById(R.id.warning))
3247                 .setText(R.string.ssl_not_yet_valid);
3248         }
3249
3250         mSSLCertificateOnErrorHandler = handler;
3251         mSSLCertificateOnErrorView = view;
3252         mSSLCertificateOnErrorError = error;
3253         mSSLCertificateOnErrorDialog =
3254             new AlertDialog.Builder(this)
3255                 .setTitle(R.string.ssl_certificate).setIcon(
3256                     R.drawable.ic_dialog_browser_certificate_partially_secure)
3257                 .setView(certificateView)
3258                 .setPositiveButton(R.string.ok,
3259                         new DialogInterface.OnClickListener() {
3260                             public void onClick(DialogInterface dialog,
3261                                     int whichButton) {
3262                                 mSSLCertificateOnErrorDialog = null;
3263                                 mSSLCertificateOnErrorView = null;
3264                                 mSSLCertificateOnErrorHandler = null;
3265                                 mSSLCertificateOnErrorError = null;
3266
3267                                 view.getWebViewClient().onReceivedSslError(
3268                                                 view, handler, error);
3269                             }
3270                         })
3271                  .setNeutralButton(R.string.page_info_view,
3272                         new DialogInterface.OnClickListener() {
3273                             public void onClick(DialogInterface dialog,
3274                                     int whichButton) {
3275                                 mSSLCertificateOnErrorDialog = null;
3276
3277                                 // do not clear the dialog state: we will
3278                                 // need to show the dialog again once the
3279                                 // user is done exploring the page-info details
3280
3281                                 showPageInfo(mTabControl.getTabFromView(view),
3282                                         true);
3283                             }
3284                         })
3285                 .setOnCancelListener(
3286                         new DialogInterface.OnCancelListener() {
3287                             public void onCancel(DialogInterface dialog) {
3288                                 mSSLCertificateOnErrorDialog = null;
3289                                 mSSLCertificateOnErrorView = null;
3290                                 mSSLCertificateOnErrorHandler = null;
3291                                 mSSLCertificateOnErrorError = null;
3292
3293                                 view.getWebViewClient().onReceivedSslError(
3294                                                 view, handler, error);
3295                             }
3296                         })
3297                 .show();
3298     }
3299
3300     /**
3301      * Inflates the SSL certificate view (helper method).
3302      * @param certificate The SSL certificate.
3303      * @return The resultant certificate view with issued-to, issued-by,
3304      * issued-on, expires-on, and possibly other fields set.
3305      * If the input certificate is null, returns null.
3306      */
3307     private View inflateCertificateView(SslCertificate certificate) {
3308         if (certificate == null) {
3309             return null;
3310         }
3311
3312         LayoutInflater factory = LayoutInflater.from(this);
3313
3314         View certificateView = factory.inflate(
3315             R.layout.ssl_certificate, null);
3316
3317         // issued to:
3318         SslCertificate.DName issuedTo = certificate.getIssuedTo();
3319         if (issuedTo != null) {
3320             ((TextView) certificateView.findViewById(R.id.to_common))
3321                 .setText(issuedTo.getCName());
3322             ((TextView) certificateView.findViewById(R.id.to_org))
3323                 .setText(issuedTo.getOName());
3324             ((TextView) certificateView.findViewById(R.id.to_org_unit))
3325                 .setText(issuedTo.getUName());
3326         }
3327
3328         // issued by:
3329         SslCertificate.DName issuedBy = certificate.getIssuedBy();
3330         if (issuedBy != null) {
3331             ((TextView) certificateView.findViewById(R.id.by_common))
3332                 .setText(issuedBy.getCName());
3333             ((TextView) certificateView.findViewById(R.id.by_org))
3334                 .setText(issuedBy.getOName());
3335             ((TextView) certificateView.findViewById(R.id.by_org_unit))
3336                 .setText(issuedBy.getUName());
3337         }
3338
3339         // issued on:
3340         String issuedOn = formatCertificateDate(
3341             certificate.getValidNotBeforeDate());
3342         ((TextView) certificateView.findViewById(R.id.issued_on))
3343             .setText(issuedOn);
3344
3345         // expires on:
3346         String expiresOn = formatCertificateDate(
3347             certificate.getValidNotAfterDate());
3348         ((TextView) certificateView.findViewById(R.id.expires_on))
3349             .setText(expiresOn);
3350
3351         return certificateView;
3352     }
3353
3354     /**
3355      * Formats the certificate date to a properly localized date string.
3356      * @return Properly localized version of the certificate date string and
3357      * the "" if it fails to localize.
3358      */
3359     private String formatCertificateDate(Date certificateDate) {
3360       if (certificateDate == null) {
3361           return "";
3362       }
3363       String formattedDate = DateFormat.getDateFormat(this).format(certificateDate);
3364       if (formattedDate == null) {
3365           return "";
3366       }
3367       return formattedDate;
3368     }
3369
3370     /**
3371      * Displays an http-authentication dialog.
3372      */
3373     void showHttpAuthentication(final HttpAuthHandler handler,
3374             final String host, final String realm, final String title,
3375             final String name, final String password, int focusId) {
3376         LayoutInflater factory = LayoutInflater.from(this);
3377         final View v = factory
3378                 .inflate(R.layout.http_authentication, null);
3379         if (name != null) {
3380             ((EditText) v.findViewById(R.id.username_edit)).setText(name);
3381         }
3382         if (password != null) {
3383             ((EditText) v.findViewById(R.id.password_edit)).setText(password);
3384         }
3385
3386         String titleText = title;
3387         if (titleText == null) {
3388             titleText = getText(R.string.sign_in_to).toString().replace(
3389                     "%s1", host).replace("%s2", realm);
3390         }
3391
3392         mHttpAuthHandler = handler;
3393         AlertDialog dialog = new AlertDialog.Builder(this)
3394                 .setTitle(titleText)
3395                 .setIcon(android.R.drawable.ic_dialog_alert)
3396                 .setView(v)
3397                 .setPositiveButton(R.string.action,
3398                         new DialogInterface.OnClickListener() {
3399                              public void onClick(DialogInterface dialog,
3400                                      int whichButton) {
3401                                 String nm = ((EditText) v
3402                                         .findViewById(R.id.username_edit))
3403                                         .getText().toString();
3404                                 String pw = ((EditText) v
3405                                         .findViewById(R.id.password_edit))
3406                                         .getText().toString();
3407                                 BrowserActivity.this.setHttpAuthUsernamePassword
3408                                         (host, realm, nm, pw);
3409                                 handler.proceed(nm, pw);
3410                                 mHttpAuthenticationDialog = null;
3411                                 mHttpAuthHandler = null;
3412                             }})
3413                 .setNegativeButton(R.string.cancel,
3414                         new DialogInterface.OnClickListener() {
3415                             public void onClick(DialogInterface dialog,
3416                                     int whichButton) {
3417                                 handler.cancel();
3418                                 BrowserActivity.this.resetTitleAndRevertLockIcon();
3419                                 mHttpAuthenticationDialog = null;
3420                                 mHttpAuthHandler = null;
3421                             }})
3422                 .setOnCancelListener(new DialogInterface.OnCancelListener() {
3423                         public void onCancel(DialogInterface dialog) {
3424                             handler.cancel();
3425                             BrowserActivity.this.resetTitleAndRevertLockIcon();
3426                             mHttpAuthenticationDialog = null;
3427                             mHttpAuthHandler = null;
3428                         }})
3429                 .create();
3430         // Make the IME appear when the dialog is displayed if applicable.
3431         dialog.getWindow().setSoftInputMode(
3432                 WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
3433         dialog.show();
3434         if (focusId != 0) {
3435             dialog.findViewById(focusId).requestFocus();
3436         } else {
3437             v.findViewById(R.id.username_edit).requestFocus();
3438         }
3439         mHttpAuthenticationDialog = dialog;
3440     }
3441
3442     public int getProgress() {
3443         WebView w = mTabControl.getCurrentWebView();
3444         if (w != null) {
3445             return w.getProgress();
3446         } else {
3447             return 100;
3448         }
3449     }
3450
3451     /**
3452      * Set HTTP authentication password.
3453      *
3454      * @param host The host for the password
3455      * @param realm The realm for the password
3456      * @param username The username for the password. If it is null, it means
3457      *            password can't be saved.
3458      * @param password The password
3459      */
3460     public void setHttpAuthUsernamePassword(String host, String realm,
3461                                             String username,
3462                                             String password) {
3463         WebView w = getTopWindow();
3464         if (w != null) {
3465             w.setHttpAuthUsernamePassword(host, realm, username, password);
3466         }
3467     }
3468
3469     /**
3470      * connectivity manager says net has come or gone... inform the user
3471      * @param up true if net has come up, false if net has gone down
3472      */
3473     public void onNetworkToggle(boolean up) {
3474         if (up == mIsNetworkUp) {
3475             return;
3476         } else if (up) {
3477             mIsNetworkUp = true;
3478             if (mAlertDialog != null) {
3479                 mAlertDialog.cancel();
3480                 mAlertDialog = null;
3481             }
3482         } else {
3483             mIsNetworkUp = false;
3484             if (mInLoad) {
3485                 createAndShowNetworkDialog();
3486            }
3487         }
3488         WebView w = mTabControl.getCurrentWebView();
3489         if (w != null) {
3490             w.setNetworkAvailable(up);
3491         }
3492     }
3493
3494     boolean isNetworkUp() {
3495         return mIsNetworkUp;
3496     }
3497
3498     // This method shows the network dialog alerting the user that the net is
3499     // down. It will only show the dialog if mAlertDialog is null.
3500     private void createAndShowNetworkDialog() {
3501         if (mAlertDialog == null) {
3502             mAlertDialog = new AlertDialog.Builder(this)
3503                     .setTitle(R.string.loadSuspendedTitle)
3504                     .setMessage(R.string.loadSuspended)
3505                     .setPositiveButton(R.string.ok, null)
3506                     .show();
3507         }
3508     }
3509
3510     @Override
3511     protected void onActivityResult(int requestCode, int resultCode,
3512                                     Intent intent) {
3513         if (getTopWindow() == null) return;
3514
3515         switch (requestCode) {
3516             case COMBO_PAGE:
3517                 if (resultCode == RESULT_OK && intent != null) {
3518                     String data = intent.getAction();
3519                     Bundle extras = intent.getExtras();
3520                     if (extras != null && extras.getBoolean("new_window", false)) {
3521                         openTab(data);
3522                     } else {
3523                         final Tab currentTab =
3524                                 mTabControl.getCurrentTab();
3525                         dismissSubWindow(currentTab);
3526                         if (data != null && data.length() != 0) {
3527                             loadUrl(getTopWindow(), data);
3528                         }
3529                     }
3530                 }
3531                 // Deliberately fall through to PREFERENCES_PAGE, since the
3532                 // same extra may be attached to the COMBO_PAGE
3533             case PREFERENCES_PAGE:
3534                 if (resultCode == RESULT_OK && intent != null) {
3535                     String action = intent.getStringExtra(Intent.EXTRA_TEXT);
3536                     if (BrowserSettings.PREF_CLEAR_HISTORY.equals(action)) {
3537                         mTabControl.removeParentChildRelationShips();
3538                     }
3539                 }
3540                 break;
3541             // Choose a file from the file picker.
3542             case FILE_SELECTED:
3543                 if (null == mUploadMessage) break;
3544                 Uri result = intent == null || resultCode != RESULT_OK ? null
3545                         : intent.getData();
3546                 mUploadMessage.onReceiveValue(result);
3547                 mUploadMessage = null;
3548                 break;
3549             default:
3550                 break;
3551         }
3552         getTopWindow().requestFocus();
3553     }
3554
3555     /*
3556      * This method is called as a result of the user selecting the options
3557      * menu to see the download window. It shows the download window on top of
3558      * the current window.
3559      */
3560     private void viewDownloads() {
3561         Intent intent = new Intent(DownloadManager.ACTION_VIEW_DOWNLOADS);
3562         startActivity(intent);
3563     }
3564
3565     /**
3566      * Open the Go page.
3567      * @param startWithHistory If true, open starting on the history tab.
3568      *                         Otherwise, start with the bookmarks tab.
3569      */
3570     /* package */ void bookmarksOrHistoryPicker(boolean startWithHistory) {
3571         WebView current = mTabControl.getCurrentWebView();
3572         if (current == null) {
3573             return;
3574         }
3575         Intent intent = new Intent(this,
3576                 CombinedBookmarkHistoryActivity.class);
3577         String title = current.getTitle();
3578         String url = current.getUrl();
3579         Bitmap thumbnail = createScreenshot(current);
3580
3581         // Just in case the user opens bookmarks before a page finishes loading
3582         // so the current history item, and therefore the page, is null.
3583         if (null == url) {
3584             url = mLastEnteredUrl;
3585             // This can happen.
3586             if (null == url) {
3587                 url = mSettings.getHomePage();
3588             }
3589         }
3590         // In case the web page has not yet received its associated title.
3591         if (title == null) {
3592             title = url;
3593         }
3594         intent.putExtra("title", title);
3595         intent.putExtra("url", url);
3596         intent.putExtra("thumbnail", thumbnail);
3597         // Disable opening in a new window if we have maxed out the windows
3598         intent.putExtra("disable_new_window", !mTabControl.canCreateNewTab());
3599         intent.putExtra("touch_icon_url", current.getTouchIconUrl());
3600         if (startWithHistory) {
3601             intent.putExtra(CombinedBookmarkHistoryActivity.STARTING_TAB,
3602                     CombinedBookmarkHistoryActivity.HISTORY_TAB);
3603         }
3604         startActivityForResult(intent, COMBO_PAGE);
3605     }
3606
3607     // Called when loading from context menu or LOAD_URL message
3608     private void loadUrlFromContext(WebView view, String url) {
3609         // In case the user enters nothing.
3610         if (url != null && url.length() != 0 && view != null) {
3611             url = smartUrlFilter(url);
3612             if (!view.getWebViewClient().shouldOverrideUrlLoading(view, url)) {
3613                 loadUrl(view, url);
3614             }
3615         }
3616     }
3617
3618     /**
3619      * Load the URL into the given WebView and update the title bar
3620      * to reflect the new load.  Call this instead of WebView.loadUrl
3621      * directly.
3622      * @param view The WebView used to load url.
3623      * @param url The URL to load.
3624      */
3625     private void loadUrl(WebView view, String url) {
3626         updateTitleBarForNewLoad(view, url);
3627         view.loadUrl(url);
3628     }
3629
3630     /**
3631      * Load UrlData into a Tab and update the title bar to reflect the new
3632      * load.  Call this instead of UrlData.loadIn directly.
3633      * @param t The Tab used to load.
3634      * @param data The UrlData being loaded.
3635      */
3636     private void loadUrlDataIn(Tab t, UrlData data) {
3637         updateTitleBarForNewLoad(t.getWebView(), data.mUrl);
3638         data.loadIn(t);
3639     }
3640
3641     /**
3642      * If the WebView is the top window, update the title bar to reflect
3643      * loading the new URL.  i.e. set its text, clear the favicon (which
3644      * will be set once the page begins loading), and set the progress to
3645      * INITIAL_PROGRESS to show that the page has begun to load. Called
3646      * by loadUrl and loadUrlDataIn.
3647      * @param view The WebView that is starting a load.
3648      * @param url The URL that is being loaded.
3649      */
3650     private void updateTitleBarForNewLoad(WebView view, String url) {
3651         if (view == getTopWindow()) {
3652             setUrlTitle(url, null);
3653             setFavicon(null);
3654             onProgressChanged(view, INITIAL_PROGRESS);
3655         }
3656     }
3657
3658     private String smartUrlFilter(Uri inUri) {
3659         if (inUri != null) {
3660             return smartUrlFilter(inUri.toString());
3661         }
3662         return null;
3663     }
3664
3665     protected static final Pattern ACCEPTED_URI_SCHEMA = Pattern.compile(
3666             "(?i)" + // switch on case insensitive matching
3667             "(" +    // begin group for schema
3668             "(?:http|https|file):\\/\\/" +
3669             "|(?:inline|data|about|javascript):" +
3670             ")" +
3671             "(.*)" );
3672
3673     /**
3674      * Attempts to determine whether user input is a URL or search
3675      * terms.  Anything with a space is passed to search.
3676      *
3677      * Converts to lowercase any mistakenly uppercased schema (i.e.,
3678      * "Http://" converts to "http://"
3679      *
3680      * @return Original or modified URL
3681      *
3682      */
3683     String smartUrlFilter(String url) {
3684
3685         String inUrl = url.trim();
3686         boolean hasSpace = inUrl.indexOf(' ') != -1;
3687
3688         Matcher matcher = ACCEPTED_URI_SCHEMA.matcher(inUrl);
3689         if (matcher.matches()) {
3690             // force scheme to lowercase
3691             String scheme = matcher.group(1);
3692             String lcScheme = scheme.toLowerCase();
3693             if (!lcScheme.equals(scheme)) {
3694                 inUrl = lcScheme + matcher.group(2);
3695             }
3696             if (hasSpace) {
3697                 inUrl = inUrl.replace(" ", "%20");
3698             }
3699             return inUrl;
3700         }
3701         if (!hasSpace) {
3702             if (Patterns.WEB_URL.matcher(inUrl).matches()) {
3703                 return URLUtil.guessUrl(inUrl);
3704             }
3705         }
3706
3707         // FIXME: Is this the correct place to add to searches?
3708         // what if someone else calls this function?
3709
3710         Browser.addSearchUrl(mResolver, inUrl);
3711         return URLUtil.composeSearchUrl(inUrl, QuickSearch_G, QUERY_PLACE_HOLDER);
3712     }
3713
3714     /* package */ void setShouldShowErrorConsole(boolean flag) {
3715         if (flag == mShouldShowErrorConsole) {
3716             // Nothing to do.
3717             return;
3718         }
3719         Tab t = mTabControl.getCurrentTab();
3720         if (t == null) {
3721             // There is no current tab so we cannot toggle the error console
3722             return;
3723         }
3724
3725         mShouldShowErrorConsole = flag;
3726
3727         ErrorConsoleView errorConsole = t.getErrorConsole(true);
3728
3729         if (flag) {
3730             // Setting the show state of the console will cause it's the layout to be inflated.
3731             if (errorConsole.numberOfErrors() > 0) {
3732                 errorConsole.showConsole(ErrorConsoleView.SHOW_MINIMIZED);
3733             } else {
3734                 errorConsole.showConsole(ErrorConsoleView.SHOW_NONE);
3735             }
3736
3737             // Now we can add it to the main view.
3738             mErrorConsoleContainer.addView(errorConsole,
3739                     new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
3740                                                   ViewGroup.LayoutParams.WRAP_CONTENT));
3741         } else {
3742             mErrorConsoleContainer.removeView(errorConsole);
3743         }
3744
3745     }
3746
3747     boolean shouldShowErrorConsole() {
3748         return mShouldShowErrorConsole;
3749     }
3750
3751     private void setStatusBarVisibility(boolean visible) {
3752         int flag = visible ? 0 : WindowManager.LayoutParams.FLAG_FULLSCREEN;
3753         getWindow().setFlags(flag, WindowManager.LayoutParams.FLAG_FULLSCREEN);
3754     }
3755
3756
3757     private void sendNetworkType(String type, String subtype) {
3758         WebView w = mTabControl.getCurrentWebView();
3759         if (w != null) {
3760             w.setNetworkType(type, subtype);
3761         }
3762     }
3763
3764     private void packageChanged(String packageName, boolean wasAdded) {
3765         WebView w = mTabControl.getCurrentWebView();
3766         if (w == null) {
3767             return;
3768         }
3769
3770         if (wasAdded) {
3771             w.addPackageName(packageName);
3772         } else {
3773             w.removePackageName(packageName);
3774         }
3775     }
3776
3777     private void addPackageNames(Set<String> packageNames) {
3778         WebView w = mTabControl.getCurrentWebView();
3779         if (w == null) {
3780             return;
3781         }
3782
3783         w.addPackageNames(packageNames);
3784     }
3785
3786     private void getInstalledPackages() {
3787         AsyncTask<Void, Void, Set<String> > task =
3788             new AsyncTask<Void, Void, Set<String> >() {
3789             protected Set<String> doInBackground(Void... unused) {
3790                 Set<String> installedPackages = new HashSet<String>();
3791                 PackageManager pm = BrowserActivity.this.getPackageManager();
3792                 if (pm != null) {
3793                     List<PackageInfo> packages = pm.getInstalledPackages(0);
3794                     for (PackageInfo p : packages) {
3795                         if (BrowserActivity.this.sGoogleApps.contains(p.packageName)) {
3796                             installedPackages.add(p.packageName);
3797                         }
3798                     }
3799                 }
3800
3801                 return installedPackages;
3802             }
3803
3804             // Executes on the UI thread
3805             protected void onPostExecute(Set<String> installedPackages) {
3806                 addPackageNames(installedPackages);
3807             }
3808         };
3809         task.execute();
3810     }
3811
3812     final static int LOCK_ICON_UNSECURE = 0;
3813     final static int LOCK_ICON_SECURE   = 1;
3814     final static int LOCK_ICON_MIXED    = 2;
3815
3816     private BrowserSettings mSettings;
3817     private TabControl      mTabControl;
3818     private ContentResolver mResolver;
3819     private FrameLayout     mContentView;
3820     private View            mCustomView;
3821     private FrameLayout     mCustomViewContainer;
3822     private WebChromeClient.CustomViewCallback mCustomViewCallback;
3823
3824     // FIXME, temp address onPrepareMenu performance problem. When we move everything out of
3825     // view, we should rewrite this.
3826     private int mCurrentMenuState = 0;
3827     private int mMenuState = R.id.MAIN_MENU;
3828     private int mOldMenuState = EMPTY_MENU;
3829     private static final int EMPTY_MENU = -1;
3830     private Menu mMenu;
3831
3832     private FindDialog mFindDialog;
3833     private SelectDialog mSelectDialog;
3834     // Used to prevent chording to result in firing two shortcuts immediately
3835     // one after another.  Fixes bug 1211714.
3836     boolean mCanChord;
3837
3838     private boolean mInLoad;
3839     private boolean mIsNetworkUp;
3840     private boolean mDidStopLoad;
3841
3842     /* package */ boolean mActivityInPause = true;
3843
3844     private boolean mMenuIsDown;
3845
3846     private static boolean mInTrace;
3847
3848     // Performance probe
3849     private static final int[] SYSTEM_CPU_FORMAT = new int[] {
3850             Process.PROC_SPACE_TERM | Process.PROC_COMBINE,
3851             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 1: user time
3852             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 2: nice time
3853             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 3: sys time
3854             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 4: idle time
3855             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 5: iowait time
3856             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG, // 6: irq time
3857             Process.PROC_SPACE_TERM | Process.PROC_OUT_LONG  // 7: softirq time
3858     };
3859
3860     private long mStart;
3861     private long mProcessStart;
3862     private long mUserStart;
3863     private long mSystemStart;
3864     private long mIdleStart;
3865     private long mIrqStart;
3866
3867     private long mUiStart;
3868
3869     private Drawable    mMixLockIcon;
3870     private Drawable    mSecLockIcon;
3871
3872     /* hold a ref so we can auto-cancel if necessary */
3873     private AlertDialog mAlertDialog;
3874
3875     // The up-to-date URL and title (these can be different from those stored
3876     // in WebView, since it takes some time for the information in WebView to
3877     // get updated)
3878     private String mUrl;
3879     private String mTitle;
3880
3881     // As PageInfo has different style for landscape / portrait, we have
3882     // to re-open it when configuration changed
3883     private AlertDialog mPageInfoDialog;
3884     private Tab mPageInfoView;
3885     // If the Page-Info dialog is launched from the SSL-certificate-on-error
3886     // dialog, we should not just dismiss it, but should get back to the
3887     // SSL-certificate-on-error dialog. This flag is used to store this state
3888     private boolean mPageInfoFromShowSSLCertificateOnError;
3889
3890     // as SSLCertificateOnError has different style for landscape / portrait,
3891     // we have to re-open it when configuration changed
3892     private AlertDialog mSSLCertificateOnErrorDialog;
3893     private WebView mSSLCertificateOnErrorView;
3894     private SslErrorHandler mSSLCertificateOnErrorHandler;
3895     private SslError mSSLCertificateOnErrorError;
3896
3897     // as SSLCertificate has different style for landscape / portrait, we
3898     // have to re-open it when configuration changed
3899     private AlertDialog mSSLCertificateDialog;
3900     private Tab mSSLCertificateView;
3901
3902     // as HttpAuthentication has different style for landscape / portrait, we
3903     // have to re-open it when configuration changed
3904     private AlertDialog mHttpAuthenticationDialog;
3905     private HttpAuthHandler mHttpAuthHandler;
3906
3907     /*package*/ static final FrameLayout.LayoutParams COVER_SCREEN_PARAMS =
3908                                             new FrameLayout.LayoutParams(
3909                                             ViewGroup.LayoutParams.MATCH_PARENT,
3910                                             ViewGroup.LayoutParams.MATCH_PARENT);
3911     /*package*/ static final FrameLayout.LayoutParams COVER_SCREEN_GRAVITY_CENTER =
3912                                             new FrameLayout.LayoutParams(
3913                                             ViewGroup.LayoutParams.MATCH_PARENT,
3914                                             ViewGroup.LayoutParams.MATCH_PARENT,
3915                                             Gravity.CENTER);
3916     // Google search
3917     final static String QuickSearch_G = "http://www.google.com/m?q=%s";
3918
3919     final static String QUERY_PLACE_HOLDER = "%s";
3920
3921     // "source" parameter for Google search through search key
3922     final static String GOOGLE_SEARCH_SOURCE_SEARCHKEY = "browser-key";
3923     // "source" parameter for Google search through goto menu
3924     final static String GOOGLE_SEARCH_SOURCE_GOTO = "browser-goto";
3925     // "source" parameter for Google search through simplily type
3926     final static String GOOGLE_SEARCH_SOURCE_TYPE = "browser-type";
3927     // "source" parameter for Google search suggested by the browser
3928     final static String GOOGLE_SEARCH_SOURCE_SUGGEST = "browser-suggest";
3929     // "source" parameter for Google search from unknown source
3930     final static String GOOGLE_SEARCH_SOURCE_UNKNOWN = "unknown";
3931
3932     private final static String LOGTAG = "browser";
3933
3934     private String mLastEnteredUrl;
3935
3936     private PowerManager.WakeLock mWakeLock;
3937     private final static int WAKELOCK_TIMEOUT = 5 * 60 * 1000; // 5 minutes
3938
3939     private Toast mStopToast;
3940
3941     private TitleBar mTitleBar;
3942
3943     private LinearLayout mErrorConsoleContainer = null;
3944     private boolean mShouldShowErrorConsole = false;
3945
3946     // As the ids are dynamically created, we can't guarantee that they will
3947     // be in sequence, so this static array maps ids to a window number.
3948     final static private int[] WINDOW_SHORTCUT_ID_ARRAY =
3949     { R.id.window_one_menu_id, R.id.window_two_menu_id, R.id.window_three_menu_id,
3950       R.id.window_four_menu_id, R.id.window_five_menu_id, R.id.window_six_menu_id,
3951       R.id.window_seven_menu_id, R.id.window_eight_menu_id };
3952
3953     // monitor platform changes
3954     private IntentFilter mNetworkStateChangedFilter;
3955     private BroadcastReceiver mNetworkStateIntentReceiver;
3956
3957     private BroadcastReceiver mPackageInstallationReceiver;
3958
3959     private SystemAllowGeolocationOrigins mSystemAllowGeolocationOrigins;
3960
3961     // activity requestCode
3962     final static int COMBO_PAGE                 = 1;
3963     final static int PREFERENCES_PAGE           = 3;
3964     final static int FILE_SELECTED              = 4;
3965
3966     // the default <video> poster
3967     private Bitmap mDefaultVideoPoster;
3968     // the video progress view
3969     private View mVideoProgressView;
3970
3971     // The Google packages we monitor for the navigator.isApplicationInstalled()
3972     // API. Add as needed.
3973     private static Set<String> sGoogleApps;
3974     static {
3975         sGoogleApps = new HashSet<String>();
3976         sGoogleApps.add("com.google.android.youtube");
3977     }
3978
3979     /**
3980      * A UrlData class to abstract how the content will be set to WebView.
3981      * This base class uses loadUrl to show the content.
3982      */
3983     /* package */ static class UrlData {
3984         final String mUrl;
3985         final Map<String, String> mHeaders;
3986         final Intent mVoiceIntent;
3987
3988         UrlData(String url) {
3989             this.mUrl = url;
3990             this.mHeaders = null;
3991             this.mVoiceIntent = null;
3992         }
3993
3994         UrlData(String url, Map<String, String> headers, Intent intent) {
3995             this.mUrl = url;
3996             this.mHeaders = headers;
3997             if (RecognizerResultsIntent.ACTION_VOICE_SEARCH_RESULTS
3998                     .equals(intent.getAction())) {
3999                 this.mVoiceIntent = intent;
4000             } else {
4001                 this.mVoiceIntent = null;
4002             }
4003         }
4004
4005         boolean isEmpty() {
4006             return mVoiceIntent == null && (mUrl == null || mUrl.length() == 0);
4007         }
4008
4009         /**
4010          * Load this UrlData into the given Tab.  Use loadUrlDataIn to update
4011          * the title bar as well.
4012          */
4013         public void loadIn(Tab t) {
4014             if (mVoiceIntent != null) {
4015                 t.activateVoiceSearchMode(mVoiceIntent);
4016             } else {
4017                 t.getWebView().loadUrl(mUrl, mHeaders);
4018             }
4019         }
4020     };
4021
4022     /* package */ static final UrlData EMPTY_URL_DATA = new UrlData(null);
4023
4024     private static boolean needsRlz(Uri uri) {
4025         if ((uri.getQueryParameter("rlz") == null) &&
4026             (uri.getQueryParameter("q") != null) &&
4027             UrlUtils.isGoogleUri(uri)) {
4028             return true;
4029         }
4030         return false;
4031     }
4032
4033     private static Uri addRlzParameter(Uri uri, String rlz) {
4034         if (rlz.isEmpty()) {
4035             return uri;
4036         }
4037         return uri.buildUpon().appendQueryParameter("rlz", rlz).build();
4038     }
4039 }