gecko/embedding/android/GeckoSurfaceView.java

333 lines
10 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) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Vladimir Vukicevic <vladimir@pobox.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 java.io.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.concurrent.locks.*;
import java.util.concurrent.atomic.*;
import java.util.zip.*;
import java.nio.*;
import android.os.*;
import android.app.*;
import android.text.*;
import android.view.*;
import android.view.inputmethod.*;
import android.content.*;
import android.graphics.*;
import android.widget.*;
import android.hardware.*;
import android.location.*;
import android.util.*;
/*
* GeckoSurfaceView implements a GL surface view,
* similar to GLSurfaceView. However, since we
* already have a thread for Gecko, we don't really want
* a separate renderer thread that GLSurfaceView provides.
*/
class GeckoSurfaceView
extends SurfaceView
implements SurfaceHolder.Callback, SensorEventListener, LocationListener
{
public GeckoSurfaceView(Context context) {
super(context);
getHolder().addCallback(this);
inputConnection = new GeckoInputConnection(this);
setFocusable(true);
setFocusableInTouchMode(true);
mWidth = 0;
mHeight = 0;
mBufferWidth = 0;
mBufferHeight = 0;
mSurfaceLock = new ReentrantLock();
mIMEState = IME_STATE_DISABLED;
}
protected void finalize() throws Throwable {
super.finalize();
}
/*
* Called on main thread
*/
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
mSurfaceLock.lock();
try {
if (mInDrawing) {
Log.w("GeckoAppJava", "surfaceChanged while mInDrawing is true!");
}
if (width == 0 || height == 0)
mSoftwareBuffer = null;
else if (mSoftwareBuffer == null ||
mSoftwareBuffer.capacity() < (width * height * 2) ||
mWidth != width || mHeight != height)
mSoftwareBuffer = ByteBuffer.allocateDirect(width * height * 2);
mFormat = format;
mWidth = width;
mHeight = height;
mSurfaceValid = true;
Log.i("GeckoAppJava", "surfaceChanged: fmt: " + format + " dim: " + width + " " + height);
// XXX This code doesn't seem to actually get hit
if (!GeckoAppShell.sGeckoRunning) {
GeckoAppShell.setInitialSize(width, height);
return;
}
GeckoEvent e = new GeckoEvent(GeckoEvent.SIZE_CHANGED, width, height, -1, -1);
GeckoAppShell.sendEventToGecko(e);
if (mSurfaceNeedsRedraw) {
GeckoAppShell.scheduleRedraw();
mSurfaceNeedsRedraw = false;
}
mSurfaceChanged = true;
} finally {
mSurfaceLock.unlock();
}
}
public void surfaceCreated(SurfaceHolder holder) {
if (GeckoAppShell.sGeckoRunning)
mSurfaceNeedsRedraw = true;
}
public void surfaceDestroyed(SurfaceHolder holder) {
Log.i("GeckoAppJava", "surface destroyed");
mSurfaceValid = false;
mSoftwareBuffer = null;
}
public ByteBuffer getSoftwareDrawBuffer() {
return mSoftwareBuffer;
}
/*
* Called on Gecko thread
*/
public static final int DRAW_ERROR = 0;
public static final int DRAW_GLES_2 = 1;
public int beginDrawing() {
if (mInDrawing) {
Log.e("GeckoAppJava", "Recursive beginDrawing call!");
return DRAW_ERROR;
}
/* Grab the lock, which we'll hold while we're drawing.
* It gets released in endDrawing(), and is also used in surfaceChanged
* to make sure that we don't change our surface details while
* we're in the middle of drawing (and especially in the middle of
* executing beginDrawing/endDrawing).
*
* We might not need to hold this lock in between
* beginDrawing/endDrawing, and might just be able to make
* surfaceChanged, beginDrawing, and endDrawing synchronized,
* but this way is safer for now.
*/
mSurfaceLock.lock();
if (!mSurfaceValid) {
Log.e("GeckoAppJava", "Surface not valid");
mSurfaceLock.unlock();
return DRAW_ERROR;
}
mInDrawing = true;
return DRAW_GLES_2;
}
public void endDrawing() {
if (!mInDrawing) {
Log.e("GeckoAppJava", "endDrawing without beginDrawing!");
return;
}
try {
if (!mSurfaceValid) {
Log.e("GeckoAppJava", "endDrawing with false mSurfaceValid");
return;
}
} catch (java.lang.IllegalArgumentException ex) {
mSurfaceChanged = true;
} finally {
mInDrawing = false;
if (!mSurfaceLock.isHeldByCurrentThread())
Log.e("GeckoAppJava", "endDrawing while mSurfaceLock not held by current thread!");
mSurfaceLock.unlock();
}
}
public void draw2D(ByteBuffer buffer) {
if (GeckoApp.mAppContext.mProgressDialog != null) {
GeckoApp.mAppContext.mProgressDialog.dismiss();
GeckoApp.mAppContext.mProgressDialog = null;
}
Canvas c = getHolder().lockCanvas();
if (c == null)
return;
if (buffer != mSoftwareBuffer) {
getHolder().unlockCanvasAndPost(c);
return;
}
if (mSoftwareBitmap == null ||
mSoftwareBitmap.getHeight() != mHeight ||
mSoftwareBitmap.getWidth() != mWidth) {
mSoftwareBitmap = Bitmap.createBitmap(mWidth, mHeight, Bitmap.Config.RGB_565);
}
mSoftwareBitmap.copyPixelsFromBuffer(mSoftwareBuffer);
c.drawBitmap(mSoftwareBitmap, 0, 0, null);
getHolder().unlockCanvasAndPost(c);
}
@Override
public boolean onCheckIsTextEditor () {
return false;
}
@Override
public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
if (!mIMEFocus)
return null;
outAttrs.inputType = InputType.TYPE_CLASS_TEXT |
InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS;
if (mIMEState == IME_STATE_PASSWORD)
outAttrs.inputType |= InputType.TYPE_TEXT_VARIATION_PASSWORD;
inputConnection.reset();
return inputConnection;
}
// accelerometer
public void onAccuracyChanged(Sensor sensor, int accuracy)
{
}
public void onSensorChanged(SensorEvent event)
{
GeckoAppShell.sendEventToGecko(new GeckoEvent(event));
}
// geolocation
public void onLocationChanged(Location location)
{
GeckoAppShell.sendEventToGecko(new GeckoEvent(location));
}
public void onProviderDisabled(String provider)
{
}
public void onProviderEnabled(String provider)
{
}
public void onStatusChanged(String provider, int status, Bundle extras)
{
}
// event stuff
public boolean onTouchEvent(MotionEvent event) {
GeckoAppShell.sendEventToGecko(new GeckoEvent(event));
return true;
}
// Is this surface valid for drawing into?
boolean mSurfaceValid;
// Do we need to force a redraw on surfaceChanged?
boolean mSurfaceNeedsRedraw;
// Has this surface been changed? (That is,
// do we need to recreate buffers?)
boolean mSurfaceChanged;
// Are we actively between beginDrawing/endDrawing?
boolean mInDrawing;
// let's not change stuff around while we're in the middle of
// starting drawing, ending drawing, or changing surface
// characteristics
ReentrantLock mSurfaceLock;
// Surface format, from surfaceChanged. Largely
// useless.
int mFormat;
// the dimensions of the surface
int mWidth;
int mHeight;
// the dimensions of the buffer we're using for drawing,
// that is the software buffer or the EGLSurface
int mBufferWidth;
int mBufferHeight;
// IME stuff
public static final int IME_STATE_DISABLED = 0;
public static final int IME_STATE_ENABLED = 1;
public static final int IME_STATE_PASSWORD = 2;
GeckoInputConnection inputConnection;
boolean mIMEFocus;
int mIMEState;
// Software rendering
ByteBuffer mSoftwareBuffer;
Bitmap mSoftwareBitmap;
}