gecko/mobile/android/base/Tab.java

578 lines
18 KiB
Java

/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Android code.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2009-2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Sriram Ramasubramanian <sriram@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
package org.mozilla.gecko;
import android.content.ContentResolver;
import android.database.ContentObserver;
import android.graphics.Bitmap;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.AsyncTask;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.Surface;
import android.view.View;
import org.json.JSONException;
import org.json.JSONObject;
import org.mozilla.gecko.db.BrowserDB;
import org.mozilla.gecko.gfx.Layer;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
public final class Tab {
private static final String LOGTAG = "GeckoTab";
private static final int kThumbnailWidth = 136;
private static final int kThumbnailHeight = 78;
private static float sMinDim = 0;
private static float sDensity = 1;
private static int sMinScreenshotWidth = 0;
private static int sMinScreenshotHeight = 0;
private int mId;
private String mUrl;
private String mTitle;
private Drawable mFavicon;
private String mFaviconUrl;
private String mSecurityMode;
private Drawable mThumbnail;
private List<HistoryEntry> mHistory;
private int mHistoryIndex;
private int mParentId;
private boolean mExternal;
private boolean mLoading;
private boolean mBookmark;
private HashMap<String, DoorHanger> mDoorHangers;
private long mFaviconLoadId;
private CheckBookmarkTask mCheckBookmarkTask;
private String mDocumentURI;
private String mContentType;
private boolean mHasTouchListeners;
private ArrayList<View> mPluginViews;
private HashMap<Surface, Layer> mPluginLayers;
private boolean mHasLoaded;
private ContentResolver mContentResolver;
private ContentObserver mContentObserver;
public static final class HistoryEntry {
public String mUri; // must never be null
public String mTitle; // must never be null
public HistoryEntry(String uri, String title) {
mUri = uri;
mTitle = title;
}
}
public Tab() {
this(-1, "", false, -1, "");
}
public Tab(int id, String url, boolean external, int parentId, String title) {
mId = id;
mUrl = url;
mExternal = external;
mParentId = parentId;
mTitle = title;
mFavicon = null;
mFaviconUrl = null;
mSecurityMode = "unknown";
mThumbnail = null;
mHistory = new ArrayList<HistoryEntry>();
mHistoryIndex = -1;
mBookmark = false;
mDoorHangers = new HashMap<String, DoorHanger>();
mFaviconLoadId = 0;
mDocumentURI = "";
mContentType = "";
mPluginViews = new ArrayList<View>();
mPluginLayers = new HashMap<Surface, Layer>();
mHasLoaded = false;
mContentResolver = Tabs.getInstance().getContentResolver();
mContentObserver = new ContentObserver(GeckoAppShell.getHandler()) {
public void onChange(boolean selfChange) {
updateBookmark();
}
};
BrowserDB.registerBookmarkObserver(mContentResolver, mContentObserver);
}
public void onDestroy() {
mDoorHangers = new HashMap<String, DoorHanger>();
BrowserDB.unregisterBookmarkObserver(mContentResolver, mContentObserver);
}
public int getId() {
return mId;
}
public int getParentId() {
return mParentId;
}
public String getURL() {
return mUrl;
}
public String getTitle() {
return mTitle;
}
public String getDisplayTitle() {
if (mTitle != null && mTitle.length() > 0) {
return mTitle;
}
return mUrl;
}
public Drawable getFavicon() {
return mFavicon;
}
public Drawable getThumbnail() {
return mThumbnail;
}
void initMetrics() {
DisplayMetrics metrics = new DisplayMetrics();
GeckoApp.mAppContext.getWindowManager().getDefaultDisplay().getMetrics(metrics);
sMinDim = Math.min(metrics.widthPixels / kThumbnailWidth, metrics.heightPixels / kThumbnailHeight);
sDensity = metrics.density;
}
float getMinDim() {
if (sMinDim == 0)
initMetrics();
return sMinDim;
}
float getDensity() {
if (sDensity == 0.0f)
initMetrics();
return sDensity;
}
int getMinScreenshotWidth() {
if (sMinScreenshotWidth != 0)
return sMinScreenshotWidth;
return sMinScreenshotWidth = (int)(getMinDim() * kThumbnailWidth);
}
int getMinScreenshotHeight() {
if (sMinScreenshotHeight != 0)
return sMinScreenshotHeight;
return sMinScreenshotHeight = (int)(getMinDim() * kThumbnailHeight);
}
int getThumbnailWidth() {
return (int)(kThumbnailWidth * getDensity());
}
int getThumbnailHeight() {
return (int)(kThumbnailHeight * getDensity());
}
public void updateThumbnail(final Bitmap b) {
final Tab tab = this;
GeckoAppShell.getHandler().post(new Runnable() {
public void run() {
if (b != null) {
try {
Bitmap cropped = null;
/* Crop to screen width if the bitmap is larger than the screen width or height. If smaller and the
* the aspect ratio is correct, just use the bitmap as is. Otherwise, fit the smaller
* smaller dimension, then crop the larger dimention.
*/
if (getMinScreenshotWidth() < b.getWidth() && getMinScreenshotHeight() < b.getHeight())
cropped = Bitmap.createBitmap(b, 0, 0, getMinScreenshotWidth(), getMinScreenshotHeight());
else if (b.getWidth() * getMinScreenshotHeight() == b.getHeight() * getMinScreenshotWidth())
cropped = b;
else if (b.getWidth() * getMinScreenshotHeight() < b.getHeight() * getMinScreenshotWidth())
cropped = Bitmap.createBitmap(b, 0, 0, b.getWidth(),
b.getWidth() * getMinScreenshotHeight() / getMinScreenshotWidth());
else
cropped = Bitmap.createBitmap(b, 0, 0,
b.getHeight() * getMinScreenshotWidth() / getMinScreenshotHeight(),
b.getHeight());
Bitmap bitmap = Bitmap.createScaledBitmap(cropped, getThumbnailWidth(), getThumbnailHeight(), false);
saveThumbnailToDB(new BitmapDrawable(bitmap));
if (!cropped.equals(b))
b.recycle();
mThumbnail = new BitmapDrawable(bitmap);
cropped.recycle();
} catch (OutOfMemoryError oom) {
Log.e(LOGTAG, "Unable to create/scale bitmap", oom);
mThumbnail = null;
}
} else {
mThumbnail = null;
}
GeckoApp.mAppContext.mMainHandler.post(new Runnable() {
public void run() {
GeckoApp.mAppContext.onTabsChanged(tab);
}
});
}
});
}
public String getFaviconURL() {
return mFaviconUrl;
}
public String getSecurityMode() {
return mSecurityMode;
}
public boolean isLoading() {
return mLoading;
}
public boolean isBookmark() {
return mBookmark;
}
public boolean isExternal() {
return mExternal;
}
public void updateURL(String url) {
if (url != null && url.length() > 0) {
mUrl = url;
Log.i(LOGTAG, "Updated url: " + url + " for tab with id: " + mId);
updateBookmark();
updateHistoryEntry(mUrl, mTitle);
}
}
public void setDocumentURI(String documentURI) {
mDocumentURI = documentURI;
}
public String getDocumentURI() {
return mDocumentURI;
}
public void setContentType(String contentType) {
mContentType = contentType;
}
public String getContentType() {
return mContentType;
}
public void updateTitle(String title) {
mTitle = (title == null ? "" : title);
Log.i(LOGTAG, "Updated title: " + mTitle + " for tab with id: " + mId);
updateHistoryEntry(mUrl, mTitle);
}
private void updateHistoryEntry(final String uri, final String title) {
final HistoryEntry he = getLastHistoryEntry();
if (he != null) {
he.mUri = uri;
he.mTitle = title;
GeckoAppShell.getHandler().post(new Runnable() {
public void run() {
GlobalHistory.getInstance().update(uri, title);
}
});
} else {
Log.e(LOGTAG, "Requested title update on empty history stack");
}
}
public void setLoading(boolean loading) {
mLoading = loading;
}
public void setHasTouchListeners(boolean aValue) {
mHasTouchListeners = aValue;
}
public boolean hasTouchListeners() {
return mHasTouchListeners;
}
public void setFaviconLoadId(long faviconLoadId) {
mFaviconLoadId = faviconLoadId;
}
public long getFaviconLoadId() {
return mFaviconLoadId;
}
public HistoryEntry getLastHistoryEntry() {
if (mHistory.isEmpty())
return null;
return mHistory.get(mHistoryIndex);
}
public void updateFavicon(Drawable favicon) {
mFavicon = favicon;
Log.i(LOGTAG, "Updated favicon for tab with id: " + mId);
}
public void updateFaviconURL(String faviconUrl) {
mFaviconUrl = faviconUrl;
Log.i(LOGTAG, "Updated favicon URL for tab with id: " + mId);
}
public void updateSecurityMode(String mode) {
mSecurityMode = mode;
}
private void updateBookmark() {
GeckoApp.mAppContext.mMainHandler.post(new Runnable() {
public void run() {
if (mCheckBookmarkTask != null)
mCheckBookmarkTask.cancel(false);
mCheckBookmarkTask = new CheckBookmarkTask(getURL());
mCheckBookmarkTask.execute();
}
});
}
public void addBookmark() {
GeckoAppShell.getHandler().post(new Runnable() {
public void run() {
BrowserDB.addBookmark(mContentResolver, getTitle(), getURL());
}
});
}
public void removeBookmark() {
GeckoAppShell.getHandler().post(new Runnable() {
public void run() {
BrowserDB.removeBookmarksWithURL(mContentResolver, getURL());
}
});
}
public boolean doReload() {
if (mHistory.isEmpty())
return false;
GeckoEvent e = GeckoEvent.createBroadcastEvent("Session:Reload", "");
GeckoAppShell.sendEventToGecko(e);
return true;
}
public boolean doBack() {
if (mHistoryIndex < 1) {
return false;
}
GeckoEvent e = GeckoEvent.createBroadcastEvent("Session:Back", "");
GeckoAppShell.sendEventToGecko(e);
return true;
}
public boolean doStop() {
GeckoEvent e = GeckoEvent.createBroadcastEvent("Session:Stop", "");
GeckoAppShell.sendEventToGecko(e);
return true;
}
public boolean canDoForward() {
return (mHistoryIndex + 1 < mHistory.size());
}
public boolean doForward() {
if (mHistoryIndex + 1 >= mHistory.size()) {
return false;
}
GeckoEvent e = GeckoEvent.createBroadcastEvent("Session:Forward", "");
GeckoAppShell.sendEventToGecko(e);
return true;
}
public void addDoorHanger(String value, DoorHanger dh) {
mDoorHangers.put(value, dh);
}
public void removeDoorHanger(String value) {
mDoorHangers.remove(value);
}
public void removeTransientDoorHangers() {
for (String value : mDoorHangers.keySet()) {
DoorHanger dh = mDoorHangers.get(value);
if (dh.shouldRemove())
mDoorHangers.remove(value);
}
}
public DoorHanger getDoorHanger(String value) {
if (mDoorHangers == null)
return null;
if (mDoorHangers.containsKey(value))
return mDoorHangers.get(value);
return null;
}
public HashMap<String, DoorHanger> getDoorHangers() {
return mDoorHangers;
}
public void setHasLoaded(boolean hasLoaded) {
mHasLoaded = hasLoaded;
}
public boolean hasLoaded() {
return mHasLoaded;
}
void handleSessionHistoryMessage(String event, JSONObject message) throws JSONException {
if (event.equals("New")) {
final String uri = message.getString("uri");
mHistoryIndex++;
while (mHistory.size() > mHistoryIndex) {
mHistory.remove(mHistoryIndex);
}
HistoryEntry he = new HistoryEntry(uri, "");
mHistory.add(he);
GeckoAppShell.getHandler().post(new Runnable() {
public void run() {
GlobalHistory.getInstance().add(uri);
}
});
} else if (event.equals("Back")) {
if (mHistoryIndex - 1 < 0) {
Log.e(LOGTAG, "Received unexpected back notification");
return;
}
mHistoryIndex--;
} else if (event.equals("Forward")) {
if (mHistoryIndex + 1 >= mHistory.size()) {
Log.e(LOGTAG, "Received unexpected forward notification");
return;
}
mHistoryIndex++;
} else if (event.equals("Goto")) {
int index = message.getInt("index");
if (index < 0 || index >= mHistory.size()) {
Log.e(LOGTAG, "Received unexpected history-goto notification");
return;
}
mHistoryIndex = index;
} else if (event.equals("Purge")) {
mHistory.clear();
mHistoryIndex = -1;
}
}
private final class CheckBookmarkTask extends AsyncTask<Void, Void, Boolean> {
private final String mUrl;
public CheckBookmarkTask(String url) {
mUrl = url;
}
@Override
protected Boolean doInBackground(Void... unused) {
return BrowserDB.isBookmark(mContentResolver, mUrl);
}
@Override
protected void onCancelled() {
mCheckBookmarkTask = null;
}
@Override
protected void onPostExecute(final Boolean isBookmark) {
mCheckBookmarkTask = null;
GeckoApp.mAppContext.runOnUiThread(new Runnable() {
public void run() {
// Ignore this task if it's not about the current
// tab URL anymore.
if (!mUrl.equals(getURL()))
return;
mBookmark = isBookmark.booleanValue();
}
});
}
}
private void saveThumbnailToDB(BitmapDrawable thumbnail) {
try {
BrowserDB.updateThumbnailForUrl(mContentResolver, getURL(), 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(Surface surface, Layer layer) {
mPluginLayers.put(surface, layer);
}
public Layer getPluginLayer(Surface surface) {
return mPluginLayers.get(surface);
}
public Collection<Layer> getPluginLayers() {
return mPluginLayers.values();
}
public Layer removePluginLayer(Surface surface) {
return mPluginLayers.remove(surface);
}
}