gecko/mobile/android/base/gfx/LayerView.java

264 lines
9.0 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>
* Arkady Blyakher <rkadyb@mit.edu>
*
* 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.GeckoAppShell;
import org.mozilla.gecko.GeckoInputConnection;
import org.mozilla.gecko.gfx.FloatSize;
import org.mozilla.gecko.gfx.InputConnectionHandler;
import org.mozilla.gecko.gfx.LayerController;
import org.mozilla.gecko.ui.SimpleScaleGestureDetector;
import android.content.Context;
import android.opengl.GLSurfaceView;
import android.view.View;
import android.view.GestureDetector;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.InputConnection;
import android.view.ScaleGestureDetector;
import android.widget.RelativeLayout;
import android.util.Log;
import java.nio.IntBuffer;
import java.util.LinkedList;
/**
* A view rendered by the layer compositor.
*
* This view delegates to LayerRenderer to actually do the drawing. Its role is largely that of a
* mediator between the LayerRenderer and the LayerController.
*
* Note that LayerView is accessed by Robocop via reflection.
*/
public class LayerView extends FlexibleGLSurfaceView {
private Context mContext;
private LayerController mController;
private InputConnectionHandler mInputConnectionHandler;
private LayerRenderer mRenderer;
private GestureDetector mGestureDetector;
private SimpleScaleGestureDetector mScaleGestureDetector;
private long mRenderTime;
private boolean mRenderTimeReset;
private static String LOGTAG = "GeckoLayerView";
/* List of events to be processed if the page does not prevent them. Should only be touched on the main thread */
private LinkedList<MotionEvent> mEventQueue = new LinkedList<MotionEvent>();
/* Must be a PAINT_xxx constant */
private int mPaintState = PAINT_NONE;
/* Flags used to determine when to show the painted surface. The integer
* order must correspond to the order in which these states occur. */
public static final int PAINT_NONE = 0;
public static final int PAINT_BEFORE_FIRST = 1;
public static final int PAINT_AFTER_FIRST = 2;
public LayerView(Context context, LayerController controller) {
super(context);
mContext = context;
mController = controller;
mRenderer = new LayerRenderer(this);
setRenderer(mRenderer);
mGestureDetector = new GestureDetector(context, controller.getGestureListener());
mScaleGestureDetector =
new SimpleScaleGestureDetector(controller.getScaleGestureListener());
mGestureDetector.setOnDoubleTapListener(controller.getDoubleTapListener());
mInputConnectionHandler = null;
setFocusable(true);
setFocusableInTouchMode(true);
createGLThread();
}
private void addToEventQueue(MotionEvent event) {
MotionEvent copy = MotionEvent.obtain(event);
mEventQueue.add(copy);
}
public void processEventQueue() {
MotionEvent event = mEventQueue.poll();
while(event != null) {
processEvent(event);
event = mEventQueue.poll();
}
}
public void clearEventQueue() {
mEventQueue.clear();
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if (mController.onTouchEvent(event)) {
addToEventQueue(event);
return true;
}
return processEvent(event);
}
private boolean processEvent(MotionEvent event) {
if (mGestureDetector.onTouchEvent(event))
return true;
mScaleGestureDetector.onTouchEvent(event);
if (mScaleGestureDetector.isInProgress())
return true;
mController.getPanZoomController().onTouchEvent(event);
return true;
}
public LayerController getController() { return mController; }
/** The LayerRenderer calls this to indicate that the window has changed size. */
public void setViewportSize(IntSize size) {
mController.setViewportSize(new FloatSize(size));
}
public GeckoInputConnection setInputConnectionHandler() {
GeckoInputConnection geckoInputConnection = GeckoInputConnection.create(this);
mInputConnectionHandler = geckoInputConnection;
return geckoInputConnection;
}
@Override
public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
if (mInputConnectionHandler != null)
return mInputConnectionHandler.onCreateInputConnection(outAttrs);
return null;
}
@Override
public boolean onKeyPreIme(int keyCode, KeyEvent event) {
if (mInputConnectionHandler != null)
return mInputConnectionHandler.onKeyPreIme(keyCode, event);
return false;
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (mInputConnectionHandler != null)
return mInputConnectionHandler.onKeyDown(keyCode, event);
return false;
}
@Override
public boolean onKeyLongPress(int keyCode, KeyEvent event) {
if (mInputConnectionHandler != null)
return mInputConnectionHandler.onKeyLongPress(keyCode, event);
return false;
}
@Override
public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) {
if (mInputConnectionHandler != null)
return mInputConnectionHandler.onKeyMultiple(keyCode, repeatCount, event);
return false;
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
if (mInputConnectionHandler != null)
return mInputConnectionHandler.onKeyUp(keyCode, event);
return false;
}
@Override
public void requestRender() {
super.requestRender();
synchronized(this) {
if (!mRenderTimeReset) {
mRenderTimeReset = true;
mRenderTime = System.nanoTime();
}
}
}
public void addLayer(Layer layer) {
mRenderer.addLayer(layer);
}
public void removeLayer(Layer layer) {
mRenderer.removeLayer(layer);
}
/**
* Returns the time elapsed between the first call of requestRender() after
* the last call of getRenderTime(), in nanoseconds.
*/
public long getRenderTime() {
synchronized(this) {
mRenderTimeReset = false;
return System.nanoTime() - mRenderTime;
}
}
public int getMaxTextureSize() {
return mRenderer.getMaxTextureSize();
}
/** Used by robocop for testing purposes. Not for production use! This is called via reflection by robocop. */
public IntBuffer getPixels() {
return mRenderer.getPixels();
}
public void setLayerRenderer(LayerRenderer renderer) {
mRenderer = renderer;
setRenderer(mRenderer);
}
public LayerRenderer getLayerRenderer() {
return mRenderer;
}
/* paintState must be a PAINT_xxx constant. The state will only be changed
* if paintState represents a state that occurs after the current state. */
public void setPaintState(int paintState) {
if (paintState > mPaintState) {
Log.d(LOGTAG, "LayerView paint state set to " + paintState);
mPaintState = paintState;
}
}
public int getPaintState() {
return mPaintState;
}
}