gecko/mobile/android/base/Tab.java

668 lines
20 KiB
Java

/* -*- 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.BrowserDB;
import org.mozilla.gecko.gfx.Layer;
import org.mozilla.gecko.util.ThreadUtils;
import android.content.ContentResolver;
import android.graphics.Bitmap;
import android.graphics.Color;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
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 mTitle;
private Bitmap mFavicon;
private String mFaviconUrl;
private int mFaviconSize;
private boolean mFeedsEnabled;
private JSONObject mIdentityData;
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 long mFaviconLoadId;
private String mDocumentURI;
private String mContentType;
private boolean mHasTouchListeners;
private ZoomConstraints mZoomConstraints;
private ArrayList<View> mPluginViews;
private HashMap<Object, Layer> mPluginLayers;
private int mBackgroundColor = Color.WHITE;
private int mState;
private Bitmap mThumbnailBitmap;
private boolean mDesktopMode;
private boolean mEnteringReaderMode;
private static final int MAX_HISTORY_LIST_SIZE = 50;
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 Tab(int id, String url, boolean external, int parentId, String title) {
mId = id;
mLastUsed = 0;
mUrl = url;
mExternal = external;
mParentId = parentId;
mTitle = title == null ? "" : title;
mFavicon = null;
mFaviconUrl = null;
mFaviconSize = 0;
mFeedsEnabled = false;
mIdentityData = null;
mReaderEnabled = false;
mEnteringReaderMode = false;
mThumbnail = null;
mHistoryIndex = -1;
mHistorySize = 0;
mBookmark = false;
mReadingListItem = false;
mFaviconLoadId = 0;
mDocumentURI = "";
mContentType = "";
mZoomConstraints = new ZoomConstraints(false);
mPluginViews = new ArrayList<View>();
mPluginLayers = new HashMap<Object, Layer>();
mState = shouldShowProgress(url) ? STATE_SUCCESS : STATE_LOADING;
}
private ContentResolver getContentResolver() {
return Tabs.getInstance().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;
}
// 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 Bitmap getFavicon() {
return mFavicon;
}
public Drawable getThumbnail() {
return mThumbnail;
}
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) {
mThumbnailBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565);
}
return mThumbnailBitmap;
}
public void updateThumbnail(final Bitmap b) {
ThreadUtils.postToBackgroundThread(new Runnable() {
@Override
public void run() {
if (b != null) {
try {
mThumbnail = new BitmapDrawable(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 getFeedsEnabled() {
return mFeedsEnabled;
}
public String getSecurityMode() {
try {
return mIdentityData.getString("mode");
} catch (Exception e) {
// If mIdentityData is null, or we get a JSONException
return SiteIdentityPopup.UNKNOWN;
}
}
public JSONObject getIdentityData() {
return mIdentityData;
}
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;
updateBookmark();
}
}
public void setDocumentURI(String documentURI) {
mDocumentURI = documentURI;
}
public String getDocumentURI() {
return mDocumentURI;
}
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;
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 setHasTouchListeners(boolean aValue) {
mHasTouchListeners = aValue;
}
public boolean getHasTouchListeners() {
return mHasTouchListeners;
}
public void setFaviconLoadId(long faviconLoadId) {
mFaviconLoadId = faviconLoadId;
}
public long getFaviconLoadId() {
return mFaviconLoadId;
}
public void updateFavicon(Bitmap favicon) {
mFavicon = favicon;
}
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 setFeedsEnabled(boolean feedsEnabled) {
mFeedsEnabled = feedsEnabled;
}
public void updateIdentityData(JSONObject identityData) {
mIdentityData = identityData;
}
public void setReaderEnabled(boolean readerEnabled) {
mReaderEnabled = readerEnabled;
Tabs.getInstance().notifyListeners(this, Tabs.TabEvents.MENU_UPDATED);
}
void updateBookmark() {
ThreadUtils.postToBackgroundThread(new Runnable() {
@Override
public void run() {
final String url = getURL();
if (url == null)
return;
if (url.equals(getURL())) {
mBookmark = BrowserDB.isBookmark(getContentResolver(), url);
mReadingListItem = BrowserDB.isReadingListItem(getContentResolver(), url);
}
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;
GeckoEvent e = GeckoEvent.createBroadcastEvent("Reader:Add", String.valueOf(getId()));
GeckoAppShell.sendEventToGecko(e);
}
public void readerMode() {
if (!mReaderEnabled)
return;
mEnteringReaderMode = true;
Tabs.getInstance().loadUrl(ReaderModeUtils.getAboutReaderForUrl(getURL(), mId, mReadingListItem));
}
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");
mEnteringReaderMode = ReaderModeUtils.isEnteringReaderMode(mUrl, uri);
updateURL(uri);
setDocumentURI(message.getString("documentURI"));
if (message.getBoolean("sameDocument")) {
// We can get a location change event for the same document with an anchor tag
return;
}
setContentType(message.getString("contentType"));
clearFavicon();
setFeedsEnabled(false);
updateTitle(null);
updateIdentityData(null);
setReaderEnabled(false);
setZoomConstraints(new ZoomConstraints(true));
setHasTouchListeners(false);
setBackgroundColor(Color.WHITE);
Tabs.getInstance().notifyListeners(this, Tabs.TabEvents.LOCATION_CHANGE, uri);
}
private boolean shouldShowProgress(String url) {
return "about:home".equals(url) || ReaderModeUtils.isAboutReader(url);
}
void handleDocumentStart(boolean showProgress, String url) {
setState(shouldShowProgress(url) ? STATE_SUCCESS : STATE_LOADING);
updateIdentityData(null);
setReaderEnabled(false);
}
void handleDocumentStop(boolean success) {
setState(success ? STATE_SUCCESS : STATE_ERROR);
final String oldURL = getURL();
final Tab tab = this;
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);
}
protected void saveThumbnailToDB() {
try {
String url = getURL();
if (url == null)
return;
BrowserDB.updateThumbnailForUrl(getContentResolver(), url, mThumbnail);
} 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;
}
}