The Tor Browser: mobile/android/base/Tab.java@b8a032363ba2 (annotated)

mobile/android/base/Tab.java@b8a032363ba2 (annotated)

mobile/android/base/Tab.java

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 package org.mozilla.gecko;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import org.json.JSONException;
 import org.json.JSONObject;
 import org.mozilla.gecko.db.BrowserContract.Bookmarks;
 import org.mozilla.gecko.db.BrowserDB;
 import org.mozilla.gecko.gfx.Layer;
 import org.mozilla.gecko.util.ThreadUtils;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.Color;
 import android.graphics.drawable.BitmapDrawable;
 import android.os.Build;
 import android.text.TextUtils;
 import android.util.Log;
 import android.view.View;
 public class Tab {
     private static final String LOGTAG = "GeckoTab";
     private static Pattern sColorPattern;
     private final int mId;
     private long mLastUsed;
     private String mUrl;
     private String mBaseDomain;
     private String mUserSearch;
     private String mTitle;
     private Bitmap mFavicon;
     private String mFaviconUrl;
     private int mFaviconSize;
     private boolean mHasFeeds;
     private boolean mHasOpenSearch;
     private SiteIdentity mSiteIdentity;
     private boolean mReaderEnabled;
     private BitmapDrawable mThumbnail;
     private int mHistoryIndex;
     private int mHistorySize;
     private int mParentId;
     private boolean mExternal;
     private boolean mBookmark;
     private boolean mReadingListItem;
     private int mFaviconLoadId;
     private String mContentType;
     private boolean mHasTouchListeners;
     private ZoomConstraints mZoomConstraints;
     private boolean mIsRTL;
     private ArrayList<View> mPluginViews;
     private HashMap<Object, Layer> mPluginLayers;
     private int mBackgroundColor;
     private int mState;
     private Bitmap mThumbnailBitmap;
     private boolean mDesktopMode;
     private boolean mEnteringReaderMode;
     private Context mAppContext;
     private ErrorType mErrorType = ErrorType.NONE;
     private static final int MAX_HISTORY_LIST_SIZE = 50;
     private volatile int mLoadProgress;
     private volatile int mRecordingCount = 0;
     private String mMostRecentHomePanel;
     public static final int STATE_DELAYED = 0;
     public static final int STATE_LOADING = 1;
     public static final int STATE_SUCCESS = 2;
     public static final int STATE_ERROR = 3;
     public static final int LOAD_PROGRESS_INIT = 10;
     public static final int LOAD_PROGRESS_START = 20;
     public static final int LOAD_PROGRESS_LOCATION_CHANGE = 60;
     public static final int LOAD_PROGRESS_LOADED = 80;
     public static final int LOAD_PROGRESS_STOP = 100;
     private static final int DEFAULT_BACKGROUND_COLOR = Color.WHITE;
     public enum ErrorType {
         CERT_ERROR,  // Pages with certificate problems
         BLOCKED,     // Pages blocked for phishing or malware warnings
         NET_ERROR,   // All other types of error
         NONE         // Non error pages
     }
     public Tab(Context context, int id, String url, boolean external, int parentId, String title) {
         mAppContext = context.getApplicationContext();
         mId = id;
         mLastUsed = 0;
         mUrl = url;
         mBaseDomain = "";
         mUserSearch = "";
         mExternal = external;
         mParentId = parentId;
         mTitle = title == null ? "" : title;
         mFavicon = null;
         mFaviconUrl = null;
         mFaviconSize = 0;
         mHasFeeds = false;
         mHasOpenSearch = false;
         mSiteIdentity = new SiteIdentity();
         mReaderEnabled = false;
         mEnteringReaderMode = false;
         mThumbnail = null;
         mHistoryIndex = -1;
         mHistorySize = 0;
         mBookmark = false;
         mReadingListItem = false;
         mFaviconLoadId = 0;
         mContentType = "";
         mZoomConstraints = new ZoomConstraints(false);
         mPluginViews = new ArrayList<View>();
         mPluginLayers = new HashMap<Object, Layer>();
         mState = shouldShowProgress(url) ? STATE_LOADING : STATE_SUCCESS;
         mLoadProgress = LOAD_PROGRESS_INIT;
         // At startup, the background is set to a color specified by LayerView
         // when the LayerView is created. Shortly after, this background color
         // will be used before the tab's content is shown.
         mBackgroundColor = DEFAULT_BACKGROUND_COLOR;
         updateBookmark();
     }
     private ContentResolver getContentResolver() {
         return mAppContext.getContentResolver();
     }
     public void onDestroy() {
         Tabs.getInstance().notifyListeners(this, Tabs.TabEvents.CLOSED);
     }
     public int getId() {
         return mId;
     }
     public synchronized void onChange() {
         mLastUsed = System.currentTimeMillis();
     }
     public synchronized long getLastUsed() {
         return mLastUsed;
     }
     public int getParentId() {
         return mParentId;
     }
     // may be null if user-entered query hasn't yet been resolved to a URI
     public synchronized String getURL() {
         return mUrl;
     }
     // mUserSearch should never be null, but it may be an empty string
     public synchronized String getUserSearch() {
         return mUserSearch;
     }
     // mTitle should never be null, but it may be an empty string
     public synchronized String getTitle() {
         return mTitle;
     }
     public String getDisplayTitle() {
         if (mTitle != null && mTitle.length() > 0) {
             return mTitle;
         }
         return mUrl;
     }
     public String getBaseDomain() {
         return mBaseDomain;
     }
     public Bitmap getFavicon() {
         return mFavicon;
     }
     public BitmapDrawable getThumbnail() {
         return mThumbnail;
     }
     public String getMostRecentHomePanel() {
         return mMostRecentHomePanel;
     }
     public void setMostRecentHomePanel(String panelId) {
         mMostRecentHomePanel = panelId;
     }
     public Bitmap getThumbnailBitmap(int width, int height) {
         if (mThumbnailBitmap != null) {
             // Bug 787318 - Honeycomb has a bug with bitmap caching, we can't
             // reuse the bitmap there.
             boolean honeycomb = (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB
                               && Build.VERSION.SDK_INT <= Build.VERSION_CODES.HONEYCOMB_MR2);
             boolean sizeChange = mThumbnailBitmap.getWidth() != width
                               || mThumbnailBitmap.getHeight() != height;
             if (honeycomb || sizeChange) {
                 mThumbnailBitmap = null;
             }
         }
         if (mThumbnailBitmap == null) {
             Bitmap.Config config = (GeckoAppShell.getScreenDepth() == 24) ?
                 Bitmap.Config.ARGB_8888 : Bitmap.Config.RGB_565;
             mThumbnailBitmap = Bitmap.createBitmap(width, height, config);
         }
         return mThumbnailBitmap;
     }
     public void updateThumbnail(final Bitmap b) {
         ThreadUtils.postToBackgroundThread(new Runnable() {
             @Override
             public void run() {
                 if (b != null) {
                     try {
                         mThumbnail = new BitmapDrawable(mAppContext.getResources(), b);
                         if (mState == Tab.STATE_SUCCESS)
                             saveThumbnailToDB();
                     } catch (OutOfMemoryError oom) {
                         Log.w(LOGTAG, "Unable to create/scale bitmap.", oom);
                         mThumbnail = null;
                     }
                 } else {
                     mThumbnail = null;
                 }
                 Tabs.getInstance().notifyListeners(Tab.this, Tabs.TabEvents.THUMBNAIL);
             }
         });
     }
     public synchronized String getFaviconURL() {
         return mFaviconUrl;
     }
     public boolean hasFeeds() {
         return mHasFeeds;
     }
     public boolean hasOpenSearch() {
         return mHasOpenSearch;
     }
     public SiteIdentity getSiteIdentity() {
         return mSiteIdentity;
     }
     public boolean getReaderEnabled() {
         return mReaderEnabled;
     }
     public boolean isBookmark() {
         return mBookmark;
     }
     public boolean isReadingListItem() {
         return mReadingListItem;
     }
     public boolean isExternal() {
         return mExternal;
     }
     public synchronized void updateURL(String url) {
         if (url != null && url.length() > 0) {
             mUrl = url;
         }
     }
     private synchronized void updateUserSearch(String userSearch) {
         mUserSearch = userSearch;
     }
     public void setErrorType(String type) {
         if ("blocked".equals(type))
             setErrorType(ErrorType.BLOCKED);
         else if ("certerror".equals(type))
             setErrorType(ErrorType.CERT_ERROR);
         else if ("neterror".equals(type))
             setErrorType(ErrorType.NET_ERROR);
         else
             setErrorType(ErrorType.NONE);
     }
     public void setErrorType(ErrorType type) {
         mErrorType = type;
     }
     public ErrorType getErrorType() {
         return mErrorType;
     }
     public void setContentType(String contentType) {
         mContentType = (contentType == null) ? "" : contentType;
     }
     public String getContentType() {
         return mContentType;
     }
     public synchronized void updateTitle(String title) {
         // Keep the title unchanged while entering reader mode.
         if (mEnteringReaderMode) {
             return;
         }
         // If there was a title, but it hasn't changed, do nothing.
         if (mTitle != null &&
             TextUtils.equals(mTitle, title)) {
             return;
         }
         mTitle = (title == null ? "" : title);
         Tabs.getInstance().notifyListeners(this, Tabs.TabEvents.TITLE);
     }
     public void setState(int state) {
         mState = state;
         if (mState != Tab.STATE_LOADING)
             mEnteringReaderMode = false;
     }
     public int getState() {
         return mState;
     }
     public void setZoomConstraints(ZoomConstraints constraints) {
         mZoomConstraints = constraints;
     }
     public ZoomConstraints getZoomConstraints() {
         return mZoomConstraints;
     }
     public void setIsRTL(boolean aIsRTL) {
         mIsRTL = aIsRTL;
     }
     public boolean getIsRTL() {
         return mIsRTL;
     }
     public void setHasTouchListeners(boolean aValue) {
         mHasTouchListeners = aValue;
     }
     public boolean getHasTouchListeners() {
         return mHasTouchListeners;
     }
     public void setFaviconLoadId(int faviconLoadId) {
         mFaviconLoadId = faviconLoadId;
     }
     public int getFaviconLoadId() {
         return mFaviconLoadId;
     }
     /**
      * Returns true if the favicon changed.
      */
     public boolean updateFavicon(Bitmap favicon) {
         if (mFavicon == favicon) {
             return false;
         }
         mFavicon = favicon;
         return true;
     }
     public synchronized void updateFaviconURL(String faviconUrl, int size) {
         // If we already have an "any" sized icon, don't update the icon.
         if (mFaviconSize == -1)
             return;
         // Only update the favicon if it's bigger than the current favicon.
         // We use -1 to represent icons with sizes="any".
         if (size == -1 || size >= mFaviconSize) {
             mFaviconUrl = faviconUrl;
             mFaviconSize = size;
         }
     }
     public synchronized void clearFavicon() {
         // Keep the favicon unchanged while entering reader mode
         if (mEnteringReaderMode)
             return;
         mFavicon = null;
         mFaviconUrl = null;
         mFaviconSize = 0;
     }
     public void setHasFeeds(boolean hasFeeds) {
         mHasFeeds = hasFeeds;
     }
     public void setHasOpenSearch(boolean hasOpenSearch) {
         mHasOpenSearch = hasOpenSearch;
     }
     public void updateIdentityData(JSONObject identityData) {
         mSiteIdentity.update(identityData);
     }
     public void setReaderEnabled(boolean readerEnabled) {
         mReaderEnabled = readerEnabled;
         Tabs.getInstance().notifyListeners(this, Tabs.TabEvents.MENU_UPDATED);
     }
     void updateBookmark() {
         if (getURL() == null) {
             return;
         }
         ThreadUtils.postToBackgroundThread(new Runnable() {
             @Override
             public void run() {
                 final String url = getURL();
                 if (url == null) {
                     return;
                 }
                 final int flags = BrowserDB.getItemFlags(getContentResolver(), url);
                 mBookmark = (flags & Bookmarks.FLAG_BOOKMARK) > 0;
                 mReadingListItem = (flags & Bookmarks.FLAG_READING) > 0;
                 Tabs.getInstance().notifyListeners(Tab.this, Tabs.TabEvents.MENU_UPDATED);
             }
         });
     }
     public void addBookmark() {
         ThreadUtils.postToBackgroundThread(new Runnable() {
             @Override
             public void run() {
                 String url = getURL();
                 if (url == null)
                     return;
                 BrowserDB.addBookmark(getContentResolver(), mTitle, url);
             }
         });
     }
     public void removeBookmark() {
         ThreadUtils.postToBackgroundThread(new Runnable() {
             @Override
             public void run() {
                 String url = getURL();
                 if (url == null)
                     return;
                 BrowserDB.removeBookmarksWithURL(getContentResolver(), url);
             }
         });
     }
     public void addToReadingList() {
         if (!mReaderEnabled)
             return;
         JSONObject json = new JSONObject();
         try {
             json.put("tabID", String.valueOf(getId()));
         } catch (JSONException e) {
             Log.e(LOGTAG, "JSON error - failing to add to reading list", e);
             return;
         }
         GeckoEvent e = GeckoEvent.createBroadcastEvent("Reader:Add", json.toString());
         GeckoAppShell.sendEventToGecko(e);
     }
     public void toggleReaderMode() {
         if (AboutPages.isAboutReader(mUrl)) {
             Tabs.getInstance().loadUrl(ReaderModeUtils.getUrlFromAboutReader(mUrl));
         } else if (mReaderEnabled) {
             mEnteringReaderMode = true;
             Tabs.getInstance().loadUrl(ReaderModeUtils.getAboutReaderForUrl(mUrl, mId));
         }
     }
     public boolean isEnteringReaderMode() {
         return mEnteringReaderMode;
     }
     public void doReload() {
         GeckoEvent e = GeckoEvent.createBroadcastEvent("Session:Reload", "");
         GeckoAppShell.sendEventToGecko(e);
     }
     // Our version of nsSHistory::GetCanGoBack
     public boolean canDoBack() {
         return mHistoryIndex > 0;
     }
     public boolean doBack() {
         if (!canDoBack())
             return false;
         GeckoEvent e = GeckoEvent.createBroadcastEvent("Session:Back", "");
         GeckoAppShell.sendEventToGecko(e);
         return true;
     }
     public boolean showBackHistory() {
         if (!canDoBack())
             return false;
         return this.showHistory(Math.max(mHistoryIndex - MAX_HISTORY_LIST_SIZE, 0), mHistoryIndex, mHistoryIndex);
     }
     public boolean showForwardHistory() {
         if (!canDoForward())
             return false;
         return this.showHistory(mHistoryIndex, Math.min(mHistorySize - 1, mHistoryIndex + MAX_HISTORY_LIST_SIZE), mHistoryIndex);
     }
     public boolean showAllHistory() {
         if (!canDoForward() && !canDoBack())
             return false;
         int min = mHistoryIndex - MAX_HISTORY_LIST_SIZE / 2;
         int max = mHistoryIndex + MAX_HISTORY_LIST_SIZE / 2;
         if (min < 0) {
             max -= min;
         }
         if (max > mHistorySize - 1) {
             min -= max - (mHistorySize - 1);
             max = mHistorySize - 1;
         }
         min = Math.max(min, 0);
         return this.showHistory(min, max, mHistoryIndex);
     }
     /**
      * This method will show the history starting on fromIndex until toIndex of the history.
      */
     public boolean showHistory(int fromIndex, int toIndex, int selIndex) {
         JSONObject json = new JSONObject();
         try {
             json.put("fromIndex", fromIndex);
             json.put("toIndex", toIndex);
             json.put("selIndex", selIndex);
         } catch (JSONException e) {
             Log.e(LOGTAG, "JSON error", e);
         }
         GeckoEvent e = GeckoEvent.createBroadcastEvent("Session:ShowHistory", json.toString());
         GeckoAppShell.sendEventToGecko(e);
         return true;
     }
     public void doStop() {
         GeckoEvent e = GeckoEvent.createBroadcastEvent("Session:Stop", "");
         GeckoAppShell.sendEventToGecko(e);
     }
     // Our version of nsSHistory::GetCanGoForward
     public boolean canDoForward() {
         return mHistoryIndex < mHistorySize - 1;
     }
     public boolean doForward() {
         if (!canDoForward())
             return false;
         GeckoEvent e = GeckoEvent.createBroadcastEvent("Session:Forward", "");
         GeckoAppShell.sendEventToGecko(e);
         return true;
     }
     void handleSessionHistoryMessage(String event, JSONObject message) throws JSONException {
         if (event.equals("New")) {
             final String url = message.getString("url");
             mHistoryIndex++;
             mHistorySize = mHistoryIndex + 1;
         } else if (event.equals("Back")) {
             if (!canDoBack()) {
                 Log.w(LOGTAG, "Received unexpected back notification");
                 return;
             }
             mHistoryIndex--;
         } else if (event.equals("Forward")) {
             if (!canDoForward()) {
                 Log.w(LOGTAG, "Received unexpected forward notification");
                 return;
             }
             mHistoryIndex++;
         } else if (event.equals("Goto")) {
             int index = message.getInt("index");
             if (index < 0 || index >= mHistorySize) {
                 Log.w(LOGTAG, "Received unexpected history-goto notification");
                 return;
             }
             mHistoryIndex = index;
         } else if (event.equals("Purge")) {
             int numEntries = message.getInt("numEntries");
             if (numEntries > mHistorySize) {
                 Log.w(LOGTAG, "Received unexpectedly large number of history entries to purge");
                 mHistoryIndex = -1;
                 mHistorySize = 0;
                 return;
             }
             mHistorySize -= numEntries;
             mHistoryIndex -= numEntries;
             // If we weren't at the last history entry, mHistoryIndex may have become too small
             if (mHistoryIndex < -1)
                 mHistoryIndex = -1;
         }
     }
     void handleLocationChange(JSONObject message) throws JSONException {
         final String uri = message.getString("uri");
         final String oldUrl = getURL();
         final boolean sameDocument = message.getBoolean("sameDocument");
         mEnteringReaderMode = ReaderModeUtils.isEnteringReaderMode(oldUrl, uri);
         if (!TextUtils.equals(oldUrl, uri)) {
             updateURL(uri);
             updateBookmark();
             if (!sameDocument) {
                 // We can unconditionally clear the favicon and title here: we
                 // already filtered both cases in which this was a (pseudo-)
                 // spurious location change, so we're definitely loading a new
                 // page.
                 clearFavicon();
                 updateTitle(null);
             }
         }
         if (sameDocument) {
             // We can get a location change event for the same document with an anchor tag
             // Notify listeners so that buttons like back or forward will update themselves
             Tabs.getInstance().notifyListeners(this, Tabs.TabEvents.LOCATION_CHANGE, oldUrl);
             return;
         }
         setContentType(message.getString("contentType"));
         updateUserSearch(message.getString("userSearch"));
         mBaseDomain = message.optString("baseDomain");
         setHasFeeds(false);
         setHasOpenSearch(false);
         updateIdentityData(null);
         setReaderEnabled(false);
         setZoomConstraints(new ZoomConstraints(true));
         setHasTouchListeners(false);
         setBackgroundColor(DEFAULT_BACKGROUND_COLOR);
         setErrorType(ErrorType.NONE);
         setLoadProgressIfLoading(LOAD_PROGRESS_LOCATION_CHANGE);
         Tabs.getInstance().notifyListeners(this, Tabs.TabEvents.LOCATION_CHANGE, oldUrl);
     }
     private static boolean shouldShowProgress(final String url) {
         return !AboutPages.isAboutPage(url);
     }
     void handleDocumentStart(boolean restoring, String url) {
         setLoadProgress(LOAD_PROGRESS_START);
         setState((!restoring && shouldShowProgress(url)) ? STATE_LOADING : STATE_SUCCESS);
         updateIdentityData(null);
         setReaderEnabled(false);
     }
     void handleDocumentStop(boolean success) {
         setState(success ? STATE_SUCCESS : STATE_ERROR);
         final String oldURL = getURL();
         final Tab tab = this;
         tab.setLoadProgress(LOAD_PROGRESS_STOP);
         ThreadUtils.getBackgroundHandler().postDelayed(new Runnable() {
             @Override
             public void run() {
                 // tab.getURL() may return null
                 if (!TextUtils.equals(oldURL, getURL()))
                     return;
                 ThumbnailHelper.getInstance().getAndProcessThumbnailFor(tab);
             }
         }, 500);
     }
     void handleContentLoaded() {
         setLoadProgressIfLoading(LOAD_PROGRESS_LOADED);
     }
     protected void saveThumbnailToDB() {
         final BitmapDrawable thumbnail = mThumbnail;
         if (thumbnail == null) {
             return;
         }
         try {
             String url = getURL();
             if (url == null) {
                 return;
             }
             BrowserDB.updateThumbnailForUrl(getContentResolver(), url, thumbnail);
         } catch (Exception e) {
             // ignore
         }
     }
     public void addPluginView(View view) {
         mPluginViews.add(view);
     }
     public void removePluginView(View view) {
         mPluginViews.remove(view);
     }
     public View[] getPluginViews() {
         return mPluginViews.toArray(new View[mPluginViews.size()]);
     }
     public void addPluginLayer(Object surfaceOrView, Layer layer) {
         synchronized(mPluginLayers) {
             mPluginLayers.put(surfaceOrView, layer);
         }
     }
     public Layer getPluginLayer(Object surfaceOrView) {
         synchronized(mPluginLayers) {
             return mPluginLayers.get(surfaceOrView);
         }
     }
     public Collection<Layer> getPluginLayers() {
         synchronized(mPluginLayers) {
             return new ArrayList<Layer>(mPluginLayers.values());
         }
     }
     public Layer removePluginLayer(Object surfaceOrView) {
         synchronized(mPluginLayers) {
             return mPluginLayers.remove(surfaceOrView);
         }
     }
     public int getBackgroundColor() {
         return mBackgroundColor;
     }
     /** Sets a new color for the background. */
     public void setBackgroundColor(int color) {
         mBackgroundColor = color;
     }
     /** Parses and sets a new color for the background. */
     public void setBackgroundColor(String newColor) {
         setBackgroundColor(parseColorFromGecko(newColor));
     }
     // Parses a color from an RGB triple of the form "rgb([0-9]+, [0-9]+, [0-9]+)". If the color
     // cannot be parsed, returns white.
     private static int parseColorFromGecko(String string) {
         if (sColorPattern == null) {
             sColorPattern = Pattern.compile("rgb\\((\\d+),\\s*(\\d+),\\s*(\\d+)\\)");
         }
         Matcher matcher = sColorPattern.matcher(string);
         if (!matcher.matches()) {
             return Color.WHITE;
         }
         int r = Integer.parseInt(matcher.group(1));
         int g = Integer.parseInt(matcher.group(2));
         int b = Integer.parseInt(matcher.group(3));
         return Color.rgb(r, g, b);
     }
     public void setDesktopMode(boolean enabled) {
         mDesktopMode = enabled;
     }
     public boolean getDesktopMode() {
         return mDesktopMode;
     }
     public boolean isPrivate() {
         return false;
     }
     /**
      * Sets the tab load progress to the given percentage.
      *
      * @param progressPercentage Percentage to set progress to (0-100)
      */
     void setLoadProgress(int progressPercentage) {
         mLoadProgress = progressPercentage;
     }
     /**
      * Sets the tab load progress to the given percentage only if the tab is
      * currently loading.
      *
      * about:neterror can trigger a STOP before other page load events (bug
      * 976426), so any post-START events should make sure the page is loading
      * before updating progress.
      *
      * @param progressPercentage Percentage to set progress to (0-100)
      */
     void setLoadProgressIfLoading(int progressPercentage) {
         if (getState() == STATE_LOADING) {
             setLoadProgress(progressPercentage);
         }
     }
     /**
      * Gets the tab load progress percentage.
      *
      * @return Current progress percentage
      */
     public int getLoadProgress() {
         return mLoadProgress;
     }
     public void setRecording(boolean isRecording) {
         if (isRecording) {
             mRecordingCount++;
         } else {
             mRecordingCount--;
         }
     }
     public boolean isRecording() {
         return mRecordingCount > 0;
     }
 }

The Tor Browser / annotate

mobile/android/base/Tab.java@b8a032363ba2 (annotated)

mobile/android/base/Tab.java