mobile/android/base/Tab.java

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/mobile/android/base/Tab.java	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,845 @@
     1.4 +/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
     1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +package org.mozilla.gecko;
    1.10 +
    1.11 +import java.util.ArrayList;
    1.12 +import java.util.Collection;
    1.13 +import java.util.HashMap;
    1.14 +import java.util.regex.Matcher;
    1.15 +import java.util.regex.Pattern;
    1.16 +
    1.17 +import org.json.JSONException;
    1.18 +import org.json.JSONObject;
    1.19 +import org.mozilla.gecko.db.BrowserContract.Bookmarks;
    1.20 +import org.mozilla.gecko.db.BrowserDB;
    1.21 +import org.mozilla.gecko.gfx.Layer;
    1.22 +import org.mozilla.gecko.util.ThreadUtils;
    1.23 +
    1.24 +import android.content.ContentResolver;
    1.25 +import android.content.Context;
    1.26 +import android.graphics.Bitmap;
    1.27 +import android.graphics.Color;
    1.28 +import android.graphics.drawable.BitmapDrawable;
    1.29 +import android.os.Build;
    1.30 +import android.text.TextUtils;
    1.31 +import android.util.Log;
    1.32 +import android.view.View;
    1.33 +
    1.34 +public class Tab {
    1.35 +    private static final String LOGTAG = "GeckoTab";
    1.36 +
    1.37 +    private static Pattern sColorPattern;
    1.38 +    private final int mId;
    1.39 +    private long mLastUsed;
    1.40 +    private String mUrl;
    1.41 +    private String mBaseDomain;
    1.42 +    private String mUserSearch;
    1.43 +    private String mTitle;
    1.44 +    private Bitmap mFavicon;
    1.45 +    private String mFaviconUrl;
    1.46 +    private int mFaviconSize;
    1.47 +    private boolean mHasFeeds;
    1.48 +    private boolean mHasOpenSearch;
    1.49 +    private SiteIdentity mSiteIdentity;
    1.50 +    private boolean mReaderEnabled;
    1.51 +    private BitmapDrawable mThumbnail;
    1.52 +    private int mHistoryIndex;
    1.53 +    private int mHistorySize;
    1.54 +    private int mParentId;
    1.55 +    private boolean mExternal;
    1.56 +    private boolean mBookmark;
    1.57 +    private boolean mReadingListItem;
    1.58 +    private int mFaviconLoadId;
    1.59 +    private String mContentType;
    1.60 +    private boolean mHasTouchListeners;
    1.61 +    private ZoomConstraints mZoomConstraints;
    1.62 +    private boolean mIsRTL;
    1.63 +    private ArrayList<View> mPluginViews;
    1.64 +    private HashMap<Object, Layer> mPluginLayers;
    1.65 +    private int mBackgroundColor;
    1.66 +    private int mState;
    1.67 +    private Bitmap mThumbnailBitmap;
    1.68 +    private boolean mDesktopMode;
    1.69 +    private boolean mEnteringReaderMode;
    1.70 +    private Context mAppContext;
    1.71 +    private ErrorType mErrorType = ErrorType.NONE;
    1.72 +    private static final int MAX_HISTORY_LIST_SIZE = 50;
    1.73 +    private volatile int mLoadProgress;
    1.74 +    private volatile int mRecordingCount = 0;
    1.75 +    private String mMostRecentHomePanel;
    1.76 +
    1.77 +    public static final int STATE_DELAYED = 0;
    1.78 +    public static final int STATE_LOADING = 1;
    1.79 +    public static final int STATE_SUCCESS = 2;
    1.80 +    public static final int STATE_ERROR = 3;
    1.81 +
    1.82 +    public static final int LOAD_PROGRESS_INIT = 10;
    1.83 +    public static final int LOAD_PROGRESS_START = 20;
    1.84 +    public static final int LOAD_PROGRESS_LOCATION_CHANGE = 60;
    1.85 +    public static final int LOAD_PROGRESS_LOADED = 80;
    1.86 +    public static final int LOAD_PROGRESS_STOP = 100;
    1.87 +
    1.88 +    private static final int DEFAULT_BACKGROUND_COLOR = Color.WHITE;
    1.89 +
    1.90 +    public enum ErrorType {
    1.91 +        CERT_ERROR,  // Pages with certificate problems
    1.92 +        BLOCKED,     // Pages blocked for phishing or malware warnings
    1.93 +        NET_ERROR,   // All other types of error
    1.94 +        NONE         // Non error pages
    1.95 +    }
    1.96 +
    1.97 +    public Tab(Context context, int id, String url, boolean external, int parentId, String title) {
    1.98 +        mAppContext = context.getApplicationContext();
    1.99 +        mId = id;
   1.100 +        mLastUsed = 0;
   1.101 +        mUrl = url;
   1.102 +        mBaseDomain = "";
   1.103 +        mUserSearch = "";
   1.104 +        mExternal = external;
   1.105 +        mParentId = parentId;
   1.106 +        mTitle = title == null ? "" : title;
   1.107 +        mFavicon = null;
   1.108 +        mFaviconUrl = null;
   1.109 +        mFaviconSize = 0;
   1.110 +        mHasFeeds = false;
   1.111 +        mHasOpenSearch = false;
   1.112 +        mSiteIdentity = new SiteIdentity();
   1.113 +        mReaderEnabled = false;
   1.114 +        mEnteringReaderMode = false;
   1.115 +        mThumbnail = null;
   1.116 +        mHistoryIndex = -1;
   1.117 +        mHistorySize = 0;
   1.118 +        mBookmark = false;
   1.119 +        mReadingListItem = false;
   1.120 +        mFaviconLoadId = 0;
   1.121 +        mContentType = "";
   1.122 +        mZoomConstraints = new ZoomConstraints(false);
   1.123 +        mPluginViews = new ArrayList<View>();
   1.124 +        mPluginLayers = new HashMap<Object, Layer>();
   1.125 +        mState = shouldShowProgress(url) ? STATE_LOADING : STATE_SUCCESS;
   1.126 +        mLoadProgress = LOAD_PROGRESS_INIT;
   1.127 +
   1.128 +        // At startup, the background is set to a color specified by LayerView
   1.129 +        // when the LayerView is created. Shortly after, this background color
   1.130 +        // will be used before the tab's content is shown.
   1.131 +        mBackgroundColor = DEFAULT_BACKGROUND_COLOR;
   1.132 +
   1.133 +        updateBookmark();
   1.134 +    }
   1.135 +
   1.136 +    private ContentResolver getContentResolver() {
   1.137 +        return mAppContext.getContentResolver();
   1.138 +    }
   1.139 +
   1.140 +    public void onDestroy() {
   1.141 +        Tabs.getInstance().notifyListeners(this, Tabs.TabEvents.CLOSED);
   1.142 +    }
   1.143 +
   1.144 +    public int getId() {
   1.145 +        return mId;
   1.146 +    }
   1.147 +
   1.148 +    public synchronized void onChange() {
   1.149 +        mLastUsed = System.currentTimeMillis();
   1.150 +    }
   1.151 +
   1.152 +    public synchronized long getLastUsed() {
   1.153 +        return mLastUsed;
   1.154 +    }
   1.155 +
   1.156 +    public int getParentId() {
   1.157 +        return mParentId;
   1.158 +    }
   1.159 +
   1.160 +    // may be null if user-entered query hasn't yet been resolved to a URI
   1.161 +    public synchronized String getURL() {
   1.162 +        return mUrl;
   1.163 +    }
   1.164 +
   1.165 +    // mUserSearch should never be null, but it may be an empty string
   1.166 +    public synchronized String getUserSearch() {
   1.167 +        return mUserSearch;
   1.168 +    }
   1.169 +
   1.170 +    // mTitle should never be null, but it may be an empty string
   1.171 +    public synchronized String getTitle() {
   1.172 +        return mTitle;
   1.173 +    }
   1.174 +
   1.175 +    public String getDisplayTitle() {
   1.176 +        if (mTitle != null && mTitle.length() > 0) {
   1.177 +            return mTitle;
   1.178 +        }
   1.179 +
   1.180 +        return mUrl;
   1.181 +    }
   1.182 +
   1.183 +    public String getBaseDomain() {
   1.184 +        return mBaseDomain;
   1.185 +    }
   1.186 +
   1.187 +    public Bitmap getFavicon() {
   1.188 +        return mFavicon;
   1.189 +    }
   1.190 +
   1.191 +    public BitmapDrawable getThumbnail() {
   1.192 +        return mThumbnail;
   1.193 +    }
   1.194 +
   1.195 +    public String getMostRecentHomePanel() {
   1.196 +        return mMostRecentHomePanel;
   1.197 +    }
   1.198 +
   1.199 +    public void setMostRecentHomePanel(String panelId) {
   1.200 +        mMostRecentHomePanel = panelId;
   1.201 +    }
   1.202 +
   1.203 +    public Bitmap getThumbnailBitmap(int width, int height) {
   1.204 +        if (mThumbnailBitmap != null) {
   1.205 +            // Bug 787318 - Honeycomb has a bug with bitmap caching, we can't
   1.206 +            // reuse the bitmap there.
   1.207 +            boolean honeycomb = (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB
   1.208 +                              && Build.VERSION.SDK_INT <= Build.VERSION_CODES.HONEYCOMB_MR2);
   1.209 +            boolean sizeChange = mThumbnailBitmap.getWidth() != width
   1.210 +                              || mThumbnailBitmap.getHeight() != height;
   1.211 +            if (honeycomb || sizeChange) {
   1.212 +                mThumbnailBitmap = null;
   1.213 +            }
   1.214 +        }
   1.215 +
   1.216 +        if (mThumbnailBitmap == null) {
   1.217 +            Bitmap.Config config = (GeckoAppShell.getScreenDepth() == 24) ?
   1.218 +                Bitmap.Config.ARGB_8888 : Bitmap.Config.RGB_565;
   1.219 +            mThumbnailBitmap = Bitmap.createBitmap(width, height, config);
   1.220 +        }
   1.221 +
   1.222 +        return mThumbnailBitmap;
   1.223 +    }
   1.224 +
   1.225 +    public void updateThumbnail(final Bitmap b) {
   1.226 +        ThreadUtils.postToBackgroundThread(new Runnable() {
   1.227 +            @Override
   1.228 +            public void run() {
   1.229 +                if (b != null) {
   1.230 +                    try {
   1.231 +                        mThumbnail = new BitmapDrawable(mAppContext.getResources(), b);
   1.232 +                        if (mState == Tab.STATE_SUCCESS)
   1.233 +                            saveThumbnailToDB();
   1.234 +                    } catch (OutOfMemoryError oom) {
   1.235 +                        Log.w(LOGTAG, "Unable to create/scale bitmap.", oom);
   1.236 +                        mThumbnail = null;
   1.237 +                    }
   1.238 +                } else {
   1.239 +                    mThumbnail = null;
   1.240 +                }
   1.241 +
   1.242 +                Tabs.getInstance().notifyListeners(Tab.this, Tabs.TabEvents.THUMBNAIL);
   1.243 +            }
   1.244 +        });
   1.245 +    }
   1.246 +
   1.247 +    public synchronized String getFaviconURL() {
   1.248 +        return mFaviconUrl;
   1.249 +    }
   1.250 +
   1.251 +    public boolean hasFeeds() {
   1.252 +        return mHasFeeds;
   1.253 +    }
   1.254 +
   1.255 +    public boolean hasOpenSearch() {
   1.256 +        return mHasOpenSearch;
   1.257 +    }
   1.258 +
   1.259 +    public SiteIdentity getSiteIdentity() {
   1.260 +        return mSiteIdentity;
   1.261 +    }
   1.262 +
   1.263 +    public boolean getReaderEnabled() {
   1.264 +        return mReaderEnabled;
   1.265 +    }
   1.266 +
   1.267 +    public boolean isBookmark() {
   1.268 +        return mBookmark;
   1.269 +    }
   1.270 +
   1.271 +    public boolean isReadingListItem() {
   1.272 +        return mReadingListItem;
   1.273 +    }
   1.274 +
   1.275 +    public boolean isExternal() {
   1.276 +        return mExternal;
   1.277 +    }
   1.278 +
   1.279 +    public synchronized void updateURL(String url) {
   1.280 +        if (url != null && url.length() > 0) {
   1.281 +            mUrl = url;
   1.282 +        }
   1.283 +    }
   1.284 +
   1.285 +    private synchronized void updateUserSearch(String userSearch) {
   1.286 +        mUserSearch = userSearch;
   1.287 +    }
   1.288 +
   1.289 +    public void setErrorType(String type) {
   1.290 +        if ("blocked".equals(type))
   1.291 +            setErrorType(ErrorType.BLOCKED);
   1.292 +        else if ("certerror".equals(type))
   1.293 +            setErrorType(ErrorType.CERT_ERROR);
   1.294 +        else if ("neterror".equals(type))
   1.295 +            setErrorType(ErrorType.NET_ERROR);
   1.296 +        else
   1.297 +            setErrorType(ErrorType.NONE);
   1.298 +    }
   1.299 +
   1.300 +    public void setErrorType(ErrorType type) {
   1.301 +        mErrorType = type;
   1.302 +    }
   1.303 +
   1.304 +    public ErrorType getErrorType() {
   1.305 +        return mErrorType;
   1.306 +    }
   1.307 +
   1.308 +    public void setContentType(String contentType) {
   1.309 +        mContentType = (contentType == null) ? "" : contentType;
   1.310 +    }
   1.311 +
   1.312 +    public String getContentType() {
   1.313 +        return mContentType;
   1.314 +    }
   1.315 +
   1.316 +    public synchronized void updateTitle(String title) {
   1.317 +        // Keep the title unchanged while entering reader mode.
   1.318 +        if (mEnteringReaderMode) {
   1.319 +            return;
   1.320 +        }
   1.321 +
   1.322 +        // If there was a title, but it hasn't changed, do nothing.
   1.323 +        if (mTitle != null &&
   1.324 +            TextUtils.equals(mTitle, title)) {
   1.325 +            return;
   1.326 +        }
   1.327 +
   1.328 +        mTitle = (title == null ? "" : title);
   1.329 +        Tabs.getInstance().notifyListeners(this, Tabs.TabEvents.TITLE);
   1.330 +    }
   1.331 +
   1.332 +    public void setState(int state) {
   1.333 +        mState = state;
   1.334 +
   1.335 +        if (mState != Tab.STATE_LOADING)
   1.336 +            mEnteringReaderMode = false;
   1.337 +    }
   1.338 +
   1.339 +    public int getState() {
   1.340 +        return mState;
   1.341 +    }
   1.342 +
   1.343 +    public void setZoomConstraints(ZoomConstraints constraints) {
   1.344 +        mZoomConstraints = constraints;
   1.345 +    }
   1.346 +
   1.347 +    public ZoomConstraints getZoomConstraints() {
   1.348 +        return mZoomConstraints;
   1.349 +    }
   1.350 +
   1.351 +    public void setIsRTL(boolean aIsRTL) {
   1.352 +        mIsRTL = aIsRTL;
   1.353 +    }
   1.354 +
   1.355 +    public boolean getIsRTL() {
   1.356 +        return mIsRTL;
   1.357 +    }
   1.358 +
   1.359 +    public void setHasTouchListeners(boolean aValue) {
   1.360 +        mHasTouchListeners = aValue;
   1.361 +    }
   1.362 +
   1.363 +    public boolean getHasTouchListeners() {
   1.364 +        return mHasTouchListeners;
   1.365 +    }
   1.366 +
   1.367 +    public void setFaviconLoadId(int faviconLoadId) {
   1.368 +        mFaviconLoadId = faviconLoadId;
   1.369 +    }
   1.370 +
   1.371 +    public int getFaviconLoadId() {
   1.372 +        return mFaviconLoadId;
   1.373 +    }
   1.374 +
   1.375 +    /**
   1.376 +     * Returns true if the favicon changed.
   1.377 +     */
   1.378 +    public boolean updateFavicon(Bitmap favicon) {
   1.379 +        if (mFavicon == favicon) {
   1.380 +            return false;
   1.381 +        }
   1.382 +        mFavicon = favicon;
   1.383 +        return true;
   1.384 +    }
   1.385 +
   1.386 +    public synchronized void updateFaviconURL(String faviconUrl, int size) {
   1.387 +        // If we already have an "any" sized icon, don't update the icon.
   1.388 +        if (mFaviconSize == -1)
   1.389 +            return;
   1.390 +
   1.391 +        // Only update the favicon if it's bigger than the current favicon.
   1.392 +        // We use -1 to represent icons with sizes="any".
   1.393 +        if (size == -1 || size >= mFaviconSize) {
   1.394 +            mFaviconUrl = faviconUrl;
   1.395 +            mFaviconSize = size;
   1.396 +        }
   1.397 +    }
   1.398 +
   1.399 +    public synchronized void clearFavicon() {
   1.400 +        // Keep the favicon unchanged while entering reader mode
   1.401 +        if (mEnteringReaderMode)
   1.402 +            return;
   1.403 +
   1.404 +        mFavicon = null;
   1.405 +        mFaviconUrl = null;
   1.406 +        mFaviconSize = 0;
   1.407 +    }
   1.408 +
   1.409 +    public void setHasFeeds(boolean hasFeeds) {
   1.410 +        mHasFeeds = hasFeeds;
   1.411 +    }
   1.412 +
   1.413 +    public void setHasOpenSearch(boolean hasOpenSearch) {
   1.414 +        mHasOpenSearch = hasOpenSearch;
   1.415 +    }
   1.416 +
   1.417 +    public void updateIdentityData(JSONObject identityData) {
   1.418 +        mSiteIdentity.update(identityData);
   1.419 +    }
   1.420 +
   1.421 +    public void setReaderEnabled(boolean readerEnabled) {
   1.422 +        mReaderEnabled = readerEnabled;
   1.423 +        Tabs.getInstance().notifyListeners(this, Tabs.TabEvents.MENU_UPDATED);
   1.424 +    }
   1.425 +
   1.426 +    void updateBookmark() {
   1.427 +        if (getURL() == null) {
   1.428 +            return;
   1.429 +        }
   1.430 +
   1.431 +        ThreadUtils.postToBackgroundThread(new Runnable() {
   1.432 +            @Override
   1.433 +            public void run() {
   1.434 +                final String url = getURL();
   1.435 +                if (url == null) {
   1.436 +                    return;
   1.437 +                }
   1.438 +
   1.439 +                final int flags = BrowserDB.getItemFlags(getContentResolver(), url);
   1.440 +                mBookmark = (flags & Bookmarks.FLAG_BOOKMARK) > 0;
   1.441 +                mReadingListItem = (flags & Bookmarks.FLAG_READING) > 0;
   1.442 +                Tabs.getInstance().notifyListeners(Tab.this, Tabs.TabEvents.MENU_UPDATED);
   1.443 +            }
   1.444 +        });
   1.445 +    }
   1.446 +
   1.447 +    public void addBookmark() {
   1.448 +        ThreadUtils.postToBackgroundThread(new Runnable() {
   1.449 +            @Override
   1.450 +            public void run() {
   1.451 +                String url = getURL();
   1.452 +                if (url == null)
   1.453 +                    return;
   1.454 +
   1.455 +                BrowserDB.addBookmark(getContentResolver(), mTitle, url);
   1.456 +            }
   1.457 +        });
   1.458 +    }
   1.459 +
   1.460 +    public void removeBookmark() {
   1.461 +        ThreadUtils.postToBackgroundThread(new Runnable() {
   1.462 +            @Override
   1.463 +            public void run() {
   1.464 +                String url = getURL();
   1.465 +                if (url == null)
   1.466 +                    return;
   1.467 +
   1.468 +                BrowserDB.removeBookmarksWithURL(getContentResolver(), url);
   1.469 +            }
   1.470 +        });
   1.471 +    }
   1.472 +
   1.473 +    public void addToReadingList() {
   1.474 +        if (!mReaderEnabled)
   1.475 +            return;
   1.476 +
   1.477 +        JSONObject json = new JSONObject();
   1.478 +        try {
   1.479 +            json.put("tabID", String.valueOf(getId()));
   1.480 +        } catch (JSONException e) {
   1.481 +            Log.e(LOGTAG, "JSON error - failing to add to reading list", e);
   1.482 +            return;
   1.483 +        }
   1.484 +
   1.485 +        GeckoEvent e = GeckoEvent.createBroadcastEvent("Reader:Add", json.toString());
   1.486 +        GeckoAppShell.sendEventToGecko(e);
   1.487 +    }
   1.488 +
   1.489 +    public void toggleReaderMode() {
   1.490 +        if (AboutPages.isAboutReader(mUrl)) {
   1.491 +            Tabs.getInstance().loadUrl(ReaderModeUtils.getUrlFromAboutReader(mUrl));
   1.492 +        } else if (mReaderEnabled) {
   1.493 +            mEnteringReaderMode = true;
   1.494 +            Tabs.getInstance().loadUrl(ReaderModeUtils.getAboutReaderForUrl(mUrl, mId));
   1.495 +        }
   1.496 +    }
   1.497 +
   1.498 +    public boolean isEnteringReaderMode() {
   1.499 +        return mEnteringReaderMode;
   1.500 +    }
   1.501 +
   1.502 +    public void doReload() {
   1.503 +        GeckoEvent e = GeckoEvent.createBroadcastEvent("Session:Reload", "");
   1.504 +        GeckoAppShell.sendEventToGecko(e);
   1.505 +    }
   1.506 +
   1.507 +    // Our version of nsSHistory::GetCanGoBack
   1.508 +    public boolean canDoBack() {
   1.509 +        return mHistoryIndex > 0;
   1.510 +    }
   1.511 +
   1.512 +    public boolean doBack() {
   1.513 +        if (!canDoBack())
   1.514 +            return false;
   1.515 +
   1.516 +        GeckoEvent e = GeckoEvent.createBroadcastEvent("Session:Back", "");
   1.517 +        GeckoAppShell.sendEventToGecko(e);
   1.518 +        return true;
   1.519 +    }
   1.520 +
   1.521 +    public boolean showBackHistory() {
   1.522 +        if (!canDoBack())
   1.523 +            return false;
   1.524 +        return this.showHistory(Math.max(mHistoryIndex - MAX_HISTORY_LIST_SIZE, 0), mHistoryIndex, mHistoryIndex);
   1.525 +    }
   1.526 +
   1.527 +    public boolean showForwardHistory() {
   1.528 +        if (!canDoForward())
   1.529 +            return false;
   1.530 +        return this.showHistory(mHistoryIndex, Math.min(mHistorySize - 1, mHistoryIndex + MAX_HISTORY_LIST_SIZE), mHistoryIndex);
   1.531 +    }
   1.532 +
   1.533 +    public boolean showAllHistory() {
   1.534 +        if (!canDoForward() && !canDoBack())
   1.535 +            return false;
   1.536 +
   1.537 +        int min = mHistoryIndex - MAX_HISTORY_LIST_SIZE / 2;
   1.538 +        int max = mHistoryIndex + MAX_HISTORY_LIST_SIZE / 2;
   1.539 +        if (min < 0) {
   1.540 +            max -= min;
   1.541 +        }
   1.542 +        if (max > mHistorySize - 1) {
   1.543 +            min -= max - (mHistorySize - 1);
   1.544 +            max = mHistorySize - 1;
   1.545 +        }
   1.546 +        min = Math.max(min, 0);
   1.547 +
   1.548 +        return this.showHistory(min, max, mHistoryIndex);
   1.549 +    }
   1.550 +
   1.551 +    /**
   1.552 +     * This method will show the history starting on fromIndex until toIndex of the history.
   1.553 +     */
   1.554 +    public boolean showHistory(int fromIndex, int toIndex, int selIndex) {
   1.555 +        JSONObject json = new JSONObject();
   1.556 +        try {
   1.557 +            json.put("fromIndex", fromIndex);
   1.558 +            json.put("toIndex", toIndex);
   1.559 +            json.put("selIndex", selIndex);
   1.560 +        } catch (JSONException e) {
   1.561 +            Log.e(LOGTAG, "JSON error", e);
   1.562 +        }
   1.563 +        GeckoEvent e = GeckoEvent.createBroadcastEvent("Session:ShowHistory", json.toString());
   1.564 +        GeckoAppShell.sendEventToGecko(e);
   1.565 +        return true;
   1.566 +    }
   1.567 +
   1.568 +    public void doStop() {
   1.569 +        GeckoEvent e = GeckoEvent.createBroadcastEvent("Session:Stop", "");
   1.570 +        GeckoAppShell.sendEventToGecko(e);
   1.571 +    }
   1.572 +
   1.573 +    // Our version of nsSHistory::GetCanGoForward
   1.574 +    public boolean canDoForward() {
   1.575 +        return mHistoryIndex < mHistorySize - 1;
   1.576 +    }
   1.577 +
   1.578 +    public boolean doForward() {
   1.579 +        if (!canDoForward())
   1.580 +            return false;
   1.581 +
   1.582 +        GeckoEvent e = GeckoEvent.createBroadcastEvent("Session:Forward", "");
   1.583 +        GeckoAppShell.sendEventToGecko(e);
   1.584 +        return true;
   1.585 +    }
   1.586 +
   1.587 +    void handleSessionHistoryMessage(String event, JSONObject message) throws JSONException {
   1.588 +        if (event.equals("New")) {
   1.589 +            final String url = message.getString("url");
   1.590 +            mHistoryIndex++;
   1.591 +            mHistorySize = mHistoryIndex + 1;
   1.592 +        } else if (event.equals("Back")) {
   1.593 +            if (!canDoBack()) {
   1.594 +                Log.w(LOGTAG, "Received unexpected back notification");
   1.595 +                return;
   1.596 +            }
   1.597 +            mHistoryIndex--;
   1.598 +        } else if (event.equals("Forward")) {
   1.599 +            if (!canDoForward()) {
   1.600 +                Log.w(LOGTAG, "Received unexpected forward notification");
   1.601 +                return;
   1.602 +            }
   1.603 +            mHistoryIndex++;
   1.604 +        } else if (event.equals("Goto")) {
   1.605 +            int index = message.getInt("index");
   1.606 +            if (index < 0 || index >= mHistorySize) {
   1.607 +                Log.w(LOGTAG, "Received unexpected history-goto notification");
   1.608 +                return;
   1.609 +            }
   1.610 +            mHistoryIndex = index;
   1.611 +        } else if (event.equals("Purge")) {
   1.612 +            int numEntries = message.getInt("numEntries");
   1.613 +            if (numEntries > mHistorySize) {
   1.614 +                Log.w(LOGTAG, "Received unexpectedly large number of history entries to purge");
   1.615 +                mHistoryIndex = -1;
   1.616 +                mHistorySize = 0;
   1.617 +                return;
   1.618 +            }
   1.619 +
   1.620 +            mHistorySize -= numEntries;
   1.621 +            mHistoryIndex -= numEntries;
   1.622 +
   1.623 +            // If we weren't at the last history entry, mHistoryIndex may have become too small
   1.624 +            if (mHistoryIndex < -1)
   1.625 +                mHistoryIndex = -1;
   1.626 +        }
   1.627 +    }
   1.628 +
   1.629 +    void handleLocationChange(JSONObject message) throws JSONException {
   1.630 +        final String uri = message.getString("uri");
   1.631 +        final String oldUrl = getURL();
   1.632 +        final boolean sameDocument = message.getBoolean("sameDocument");
   1.633 +        mEnteringReaderMode = ReaderModeUtils.isEnteringReaderMode(oldUrl, uri);
   1.634 +
   1.635 +        if (!TextUtils.equals(oldUrl, uri)) {
   1.636 +            updateURL(uri);
   1.637 +            updateBookmark();
   1.638 +            if (!sameDocument) {
   1.639 +                // We can unconditionally clear the favicon and title here: we
   1.640 +                // already filtered both cases in which this was a (pseudo-)
   1.641 +                // spurious location change, so we're definitely loading a new
   1.642 +                // page.
   1.643 +                clearFavicon();
   1.644 +                updateTitle(null);
   1.645 +            }
   1.646 +        }
   1.647 +
   1.648 +        if (sameDocument) {
   1.649 +            // We can get a location change event for the same document with an anchor tag
   1.650 +            // Notify listeners so that buttons like back or forward will update themselves
   1.651 +            Tabs.getInstance().notifyListeners(this, Tabs.TabEvents.LOCATION_CHANGE, oldUrl);
   1.652 +            return;
   1.653 +        }
   1.654 +
   1.655 +        setContentType(message.getString("contentType"));
   1.656 +        updateUserSearch(message.getString("userSearch"));
   1.657 +        mBaseDomain = message.optString("baseDomain");
   1.658 +
   1.659 +        setHasFeeds(false);
   1.660 +        setHasOpenSearch(false);
   1.661 +        updateIdentityData(null);
   1.662 +        setReaderEnabled(false);
   1.663 +        setZoomConstraints(new ZoomConstraints(true));
   1.664 +        setHasTouchListeners(false);
   1.665 +        setBackgroundColor(DEFAULT_BACKGROUND_COLOR);
   1.666 +        setErrorType(ErrorType.NONE);
   1.667 +        setLoadProgressIfLoading(LOAD_PROGRESS_LOCATION_CHANGE);
   1.668 +
   1.669 +        Tabs.getInstance().notifyListeners(this, Tabs.TabEvents.LOCATION_CHANGE, oldUrl);
   1.670 +    }
   1.671 +
   1.672 +    private static boolean shouldShowProgress(final String url) {
   1.673 +        return !AboutPages.isAboutPage(url);
   1.674 +    }
   1.675 +
   1.676 +    void handleDocumentStart(boolean restoring, String url) {
   1.677 +        setLoadProgress(LOAD_PROGRESS_START);
   1.678 +        setState((!restoring && shouldShowProgress(url)) ? STATE_LOADING : STATE_SUCCESS);
   1.679 +        updateIdentityData(null);
   1.680 +        setReaderEnabled(false);
   1.681 +    }
   1.682 +
   1.683 +    void handleDocumentStop(boolean success) {
   1.684 +        setState(success ? STATE_SUCCESS : STATE_ERROR);
   1.685 +
   1.686 +        final String oldURL = getURL();
   1.687 +        final Tab tab = this;
   1.688 +        tab.setLoadProgress(LOAD_PROGRESS_STOP);
   1.689 +        ThreadUtils.getBackgroundHandler().postDelayed(new Runnable() {
   1.690 +            @Override
   1.691 +            public void run() {
   1.692 +                // tab.getURL() may return null
   1.693 +                if (!TextUtils.equals(oldURL, getURL()))
   1.694 +                    return;
   1.695 +
   1.696 +                ThumbnailHelper.getInstance().getAndProcessThumbnailFor(tab);
   1.697 +            }
   1.698 +        }, 500);
   1.699 +    }
   1.700 +
   1.701 +    void handleContentLoaded() {
   1.702 +        setLoadProgressIfLoading(LOAD_PROGRESS_LOADED);
   1.703 +    }
   1.704 +
   1.705 +    protected void saveThumbnailToDB() {
   1.706 +        final BitmapDrawable thumbnail = mThumbnail;
   1.707 +        if (thumbnail == null) {
   1.708 +            return;
   1.709 +        }
   1.710 +
   1.711 +        try {
   1.712 +            String url = getURL();
   1.713 +            if (url == null) {
   1.714 +                return;
   1.715 +            }
   1.716 +
   1.717 +            BrowserDB.updateThumbnailForUrl(getContentResolver(), url, thumbnail);
   1.718 +        } catch (Exception e) {
   1.719 +            // ignore
   1.720 +        }
   1.721 +    }
   1.722 +
   1.723 +    public void addPluginView(View view) {
   1.724 +        mPluginViews.add(view);
   1.725 +    }
   1.726 +
   1.727 +    public void removePluginView(View view) {
   1.728 +        mPluginViews.remove(view);
   1.729 +    }
   1.730 +
   1.731 +    public View[] getPluginViews() {
   1.732 +        return mPluginViews.toArray(new View[mPluginViews.size()]);
   1.733 +    }
   1.734 +
   1.735 +    public void addPluginLayer(Object surfaceOrView, Layer layer) {
   1.736 +        synchronized(mPluginLayers) {
   1.737 +            mPluginLayers.put(surfaceOrView, layer);
   1.738 +        }
   1.739 +    }
   1.740 +
   1.741 +    public Layer getPluginLayer(Object surfaceOrView) {
   1.742 +        synchronized(mPluginLayers) {
   1.743 +            return mPluginLayers.get(surfaceOrView);
   1.744 +        }
   1.745 +    }
   1.746 +
   1.747 +    public Collection<Layer> getPluginLayers() {
   1.748 +        synchronized(mPluginLayers) {
   1.749 +            return new ArrayList<Layer>(mPluginLayers.values());
   1.750 +        }
   1.751 +    }
   1.752 +
   1.753 +    public Layer removePluginLayer(Object surfaceOrView) {
   1.754 +        synchronized(mPluginLayers) {
   1.755 +            return mPluginLayers.remove(surfaceOrView);
   1.756 +        }
   1.757 +    }
   1.758 +
   1.759 +    public int getBackgroundColor() {
   1.760 +        return mBackgroundColor;
   1.761 +    }
   1.762 +
   1.763 +    /** Sets a new color for the background. */
   1.764 +    public void setBackgroundColor(int color) {
   1.765 +        mBackgroundColor = color;
   1.766 +    }
   1.767 +
   1.768 +    /** Parses and sets a new color for the background. */
   1.769 +    public void setBackgroundColor(String newColor) {
   1.770 +        setBackgroundColor(parseColorFromGecko(newColor));
   1.771 +    }
   1.772 +
   1.773 +    // Parses a color from an RGB triple of the form "rgb([0-9]+, [0-9]+, [0-9]+)". If the color
   1.774 +    // cannot be parsed, returns white.
   1.775 +    private static int parseColorFromGecko(String string) {
   1.776 +        if (sColorPattern == null) {
   1.777 +            sColorPattern = Pattern.compile("rgb\\((\\d+),\\s*(\\d+),\\s*(\\d+)\\)");
   1.778 +        }
   1.779 +
   1.780 +        Matcher matcher = sColorPattern.matcher(string);
   1.781 +        if (!matcher.matches()) {
   1.782 +            return Color.WHITE;
   1.783 +        }
   1.784 +
   1.785 +        int r = Integer.parseInt(matcher.group(1));
   1.786 +        int g = Integer.parseInt(matcher.group(2));
   1.787 +        int b = Integer.parseInt(matcher.group(3));
   1.788 +        return Color.rgb(r, g, b);
   1.789 +    }
   1.790 +
   1.791 +    public void setDesktopMode(boolean enabled) {
   1.792 +        mDesktopMode = enabled;
   1.793 +    }
   1.794 +
   1.795 +    public boolean getDesktopMode() {
   1.796 +        return mDesktopMode;
   1.797 +    }
   1.798 +
   1.799 +    public boolean isPrivate() {
   1.800 +        return false;
   1.801 +    }
   1.802 +
   1.803 +    /**
   1.804 +     * Sets the tab load progress to the given percentage.
   1.805 +     *
   1.806 +     * @param progressPercentage Percentage to set progress to (0-100)
   1.807 +     */
   1.808 +    void setLoadProgress(int progressPercentage) {
   1.809 +        mLoadProgress = progressPercentage;
   1.810 +    }
   1.811 +
   1.812 +    /**
   1.813 +     * Sets the tab load progress to the given percentage only if the tab is
   1.814 +     * currently loading.
   1.815 +     *
   1.816 +     * about:neterror can trigger a STOP before other page load events (bug
   1.817 +     * 976426), so any post-START events should make sure the page is loading
   1.818 +     * before updating progress.
   1.819 +     *
   1.820 +     * @param progressPercentage Percentage to set progress to (0-100)
   1.821 +     */
   1.822 +    void setLoadProgressIfLoading(int progressPercentage) {
   1.823 +        if (getState() == STATE_LOADING) {
   1.824 +            setLoadProgress(progressPercentage);
   1.825 +        }
   1.826 +    }
   1.827 +
   1.828 +    /**
   1.829 +     * Gets the tab load progress percentage.
   1.830 +     *
   1.831 +     * @return Current progress percentage
   1.832 +     */
   1.833 +    public int getLoadProgress() {
   1.834 +        return mLoadProgress;
   1.835 +    }
   1.836 +
   1.837 +    public void setRecording(boolean isRecording) {
   1.838 +        if (isRecording) {
   1.839 +            mRecordingCount++;
   1.840 +        } else {
   1.841 +            mRecordingCount--;
   1.842 +        }
   1.843 +    }
   1.844 +
   1.845 +    public boolean isRecording() {
   1.846 +        return mRecordingCount > 0;
   1.847 +    }
   1.848 +}

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