gecko/embedding/android/gfx/PlaceholderLayerClient.java

104 lines
4.0 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):
* Patrick Walton <pcwalton@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.gfx;
import org.mozilla.gecko.gfx.BufferedCairoImage;
import org.mozilla.gecko.gfx.CairoUtils;
import org.mozilla.gecko.gfx.IntSize;
import org.mozilla.gecko.gfx.LayerClient;
import org.mozilla.gecko.gfx.SingleTileLayer;
import org.mozilla.gecko.GeckoApp;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Environment;
import android.util.Log;
import java.io.File;
import java.nio.ByteBuffer;
/**
* A stand-in for Gecko that renders cached content of the previous page. We use this until Gecko
* is up, then we hand off control to it.
*/
public class PlaceholderLayerClient extends LayerClient {
private Context mContext;
private IntSize mPageSize;
private int mWidth, mHeight, mFormat;
private ByteBuffer mBuffer;
private PlaceholderLayerClient(Context context, Bitmap bitmap) {
mContext = context;
mPageSize = new IntSize(995, 1250); /* TODO */
mWidth = bitmap.getWidth();
mHeight = bitmap.getHeight();
mFormat = CairoUtils.bitmapConfigToCairoFormat(bitmap.getConfig());
mBuffer = ByteBuffer.allocateDirect(mWidth * mHeight * 4);
bitmap.copyPixelsToBuffer(mBuffer.asIntBuffer());
}
public static PlaceholderLayerClient createInstance(Context context) {
File path = new File(GeckoApp.getStartupBitmapFilePath());
BitmapFactory.Options options = new BitmapFactory.Options();
options.inScaled = false;
Bitmap bitmap = BitmapFactory.decodeFile("" + path, options);
if (bitmap == null)
return null;
return new PlaceholderLayerClient(context, bitmap);
}
public void init() {
SingleTileLayer tileLayer = new SingleTileLayer();
getLayerController().setRoot(tileLayer);
tileLayer.paintImage(new BufferedCairoImage(mBuffer, mWidth, mHeight, mFormat));
}
@Override
public void geometryChanged() { /* no-op */ }
@Override
public IntSize getPageSize() { return mPageSize; }
@Override
public void render() { /* no-op */ }
/** Called whenever the page changes size. */
@Override
public void setPageSize(IntSize pageSize) { mPageSize = pageSize; }
}