mirror of
https://github.com/mozilla/gecko-dev.git
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428 lines
14 KiB
Java
428 lines
14 KiB
Java
/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.gecko.gfx;
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import org.mozilla.gecko.GeckoApp;
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import org.mozilla.gecko.R;
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import org.mozilla.gecko.ZoomConstraints;
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import org.mozilla.gecko.util.EventDispatcher;
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import org.mozilla.gecko.GeckoAccessibility;
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import android.content.Context;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.graphics.Color;
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import android.graphics.PixelFormat;
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import android.graphics.PointF;
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import android.graphics.Rect;
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import android.graphics.SurfaceTexture;
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import android.os.Build;
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import android.util.AttributeSet;
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import android.util.Log;
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import android.view.KeyEvent;
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import android.view.MotionEvent;
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import android.view.SurfaceHolder;
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import android.view.SurfaceView;
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import android.view.TextureView;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.inputmethod.EditorInfo;
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import android.view.inputmethod.InputConnection;
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import android.widget.FrameLayout;
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import java.nio.IntBuffer;
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import java.lang.reflect.Method;
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/**
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* A view rendered by the layer compositor.
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*
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* Note that LayerView is accessed by Robocop via reflection.
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*/
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public class LayerView extends FrameLayout {
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private static String LOGTAG = "GeckoLayerView";
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private GeckoLayerClient mLayerClient;
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private TouchEventHandler mTouchEventHandler;
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private GLController mGLController;
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private InputConnectionHandler mInputConnectionHandler;
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private LayerRenderer mRenderer;
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/* Must be a PAINT_xxx constant */
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private int mPaintState;
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private int mBackgroundColor;
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private boolean mFullScreen;
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private SurfaceView mSurfaceView;
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private TextureView mTextureView;
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private Listener mListener;
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/* Flags used to determine when to show the painted surface. */
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public static final int PAINT_START = 0;
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public static final int PAINT_BEFORE_FIRST = 1;
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public static final int PAINT_AFTER_FIRST = 2;
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public boolean shouldUseTextureView() {
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// Disable TextureView support for now as it causes panning/zooming
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// performance regressions (see bug 792259). Uncomment the code below
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// once this bug is fixed.
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return false;
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/*
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// we can only use TextureView on ICS or higher
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if (Build.VERSION.SDK_INT < Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
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Log.i(LOGTAG, "Not using TextureView: not on ICS+");
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return false;
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}
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try {
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// and then we can only use it if we have a hardware accelerated window
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Method m = View.class.getMethod("isHardwareAccelerated", (Class[]) null);
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return (Boolean) m.invoke(this);
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} catch (Exception e) {
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Log.i(LOGTAG, "Not using TextureView: caught exception checking for hw accel: " + e.toString());
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return false;
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} */
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}
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public LayerView(Context context, AttributeSet attrs) {
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super(context, attrs);
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mGLController = new GLController(this);
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mPaintState = PAINT_START;
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mBackgroundColor = Color.WHITE;
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}
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public void initializeView(EventDispatcher eventDispatcher) {
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mLayerClient = new GeckoLayerClient(getContext(), this, eventDispatcher);
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mTouchEventHandler = new TouchEventHandler(getContext(), this, mLayerClient);
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mRenderer = new LayerRenderer(this);
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mInputConnectionHandler = null;
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setFocusable(true);
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setFocusableInTouchMode(true);
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GeckoAccessibility.setDelegate(this);
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}
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public void show() {
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// Fix this if TextureView support is turned back on above
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mSurfaceView.setVisibility(View.VISIBLE);
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}
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public void hide() {
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// Fix this if TextureView support is turned back on above
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mSurfaceView.setVisibility(View.INVISIBLE);
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}
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public void destroy() {
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if (mLayerClient != null) {
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mLayerClient.destroy();
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}
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if (mRenderer != null) {
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mRenderer.destroy();
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}
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}
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@Override
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public boolean onTouchEvent(MotionEvent event) {
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if (event.getActionMasked() == MotionEvent.ACTION_DOWN)
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requestFocus();
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/** We need to manually hide FormAssistPopup because it is not a regular PopupWindow. */
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if (GeckoApp.mAppContext != null)
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GeckoApp.mAppContext.hideFormAssistPopup();
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return mTouchEventHandler == null ? false : mTouchEventHandler.handleEvent(event);
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}
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@Override
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public boolean onHoverEvent(MotionEvent event) {
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return mTouchEventHandler == null ? false : mTouchEventHandler.handleEvent(event);
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}
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@Override
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protected void onAttachedToWindow() {
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// This check should not be done before the view is attached to a window
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// as hardware acceleration will not be enabled at that point.
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// We must create and add the SurfaceView instance before the view tree
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// is fully created to avoid flickering (see bug 801477).
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if (shouldUseTextureView()) {
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mTextureView = new TextureView(getContext());
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mTextureView.setSurfaceTextureListener(new SurfaceTextureListener());
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mTextureView.setBackgroundColor(Color.WHITE);
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addView(mTextureView, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
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} else {
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// This will stop PropertyAnimator from creating a drawing cache (i.e. a bitmap)
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// from a SurfaceView, which is just not possible (the bitmap will be transparent).
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setWillNotCacheDrawing(false);
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mSurfaceView = new SurfaceView(getContext());
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mSurfaceView.setBackgroundColor(Color.WHITE);
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addView(mSurfaceView, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
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SurfaceHolder holder = mSurfaceView.getHolder();
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holder.addCallback(new SurfaceListener());
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holder.setFormat(PixelFormat.RGB_565);
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}
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}
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public GeckoLayerClient getLayerClient() { return mLayerClient; }
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public TouchEventHandler getTouchEventHandler() { return mTouchEventHandler; }
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public ImmutableViewportMetrics getViewportMetrics() {
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return mLayerClient.getViewportMetrics();
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}
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public void abortPanning() {
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mLayerClient.getPanZoomController().abortPanning();
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}
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public PointF convertViewPointToLayerPoint(PointF viewPoint) {
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return mLayerClient.convertViewPointToLayerPoint(viewPoint);
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}
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int getBackgroundColor() {
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return mBackgroundColor;
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}
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public void setBackgroundColor(int newColor) {
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mBackgroundColor = newColor;
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requestRender();
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}
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public void setZoomConstraints(ZoomConstraints constraints) {
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mLayerClient.setZoomConstraints(constraints);
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}
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public void setViewportSize(int width, int height) {
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mLayerClient.setViewportSize(width, height);
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}
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public void setInputConnectionHandler(InputConnectionHandler inputConnectionHandler) {
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mInputConnectionHandler = inputConnectionHandler;
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mLayerClient.setForceRedraw();
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}
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@Override
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public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
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if (mInputConnectionHandler != null)
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return mInputConnectionHandler.onCreateInputConnection(outAttrs);
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return null;
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}
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@Override
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public boolean onKeyPreIme(int keyCode, KeyEvent event) {
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if (mInputConnectionHandler != null)
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return mInputConnectionHandler.onKeyPreIme(keyCode, event);
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return false;
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}
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@Override
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public boolean onKeyDown(int keyCode, KeyEvent event) {
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if (mInputConnectionHandler != null)
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return mInputConnectionHandler.onKeyDown(keyCode, event);
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return false;
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}
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@Override
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public boolean onKeyLongPress(int keyCode, KeyEvent event) {
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if (mInputConnectionHandler != null)
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return mInputConnectionHandler.onKeyLongPress(keyCode, event);
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return false;
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}
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@Override
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public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) {
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if (mInputConnectionHandler != null)
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return mInputConnectionHandler.onKeyMultiple(keyCode, repeatCount, event);
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return false;
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}
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@Override
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public boolean onKeyUp(int keyCode, KeyEvent event) {
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if (mInputConnectionHandler != null)
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return mInputConnectionHandler.onKeyUp(keyCode, event);
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return false;
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}
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public boolean isIMEEnabled() {
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if (mInputConnectionHandler != null) {
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return mInputConnectionHandler.isIMEEnabled();
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}
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return false;
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}
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public void requestRender() {
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if (mListener != null) {
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mListener.renderRequested();
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}
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}
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public void addLayer(Layer layer) {
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mRenderer.addLayer(layer);
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}
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public void removeLayer(Layer layer) {
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mRenderer.removeLayer(layer);
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}
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public int getMaxTextureSize() {
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return mRenderer.getMaxTextureSize();
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}
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/** Used by robocop for testing purposes. Not for production use! */
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public IntBuffer getPixels() {
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return mRenderer.getPixels();
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}
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/* paintState must be a PAINT_xxx constant. */
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public void setPaintState(int paintState) {
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mPaintState = paintState;
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}
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public int getPaintState() {
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return mPaintState;
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}
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public LayerRenderer getRenderer() {
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return mRenderer;
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}
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public void setListener(Listener listener) {
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mListener = listener;
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}
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Listener getListener() {
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return mListener;
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}
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public GLController getGLController() {
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return mGLController;
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}
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private Bitmap getDrawable(int resId) {
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BitmapFactory.Options options = new BitmapFactory.Options();
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options.inScaled = false;
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return BitmapFactory.decodeResource(getContext().getResources(), resId, options);
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}
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Bitmap getBackgroundPattern() {
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return getDrawable(R.drawable.abouthome_bg);
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}
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Bitmap getShadowPattern() {
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return getDrawable(R.drawable.shadow);
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}
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private void onSizeChanged(int width, int height) {
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mGLController.surfaceChanged(width, height);
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if (mListener != null) {
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mListener.surfaceChanged(width, height);
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}
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}
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private void onDestroyed() {
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mGLController.surfaceDestroyed();
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if (mListener != null) {
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mListener.compositionPauseRequested();
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}
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}
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public Object getNativeWindow() {
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if (mSurfaceView != null)
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return mSurfaceView.getHolder();
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return mTextureView.getSurfaceTexture();
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}
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/** This function is invoked by Gecko (compositor thread) via JNI; be careful when modifying signature. */
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public static GLController registerCxxCompositor() {
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try {
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LayerView layerView = GeckoApp.mAppContext.getLayerView();
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layerView.mListener.compositorCreated();
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return layerView.getGLController();
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} catch (Exception e) {
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Log.e(LOGTAG, "Error registering compositor!", e);
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return null;
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}
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}
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public interface Listener {
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void compositorCreated();
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void renderRequested();
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void compositionPauseRequested();
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void compositionResumeRequested(int width, int height);
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void surfaceChanged(int width, int height);
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}
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private class SurfaceListener implements SurfaceHolder.Callback {
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public void surfaceChanged(SurfaceHolder holder, int format, int width,
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int height) {
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onSizeChanged(width, height);
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}
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public void surfaceCreated(SurfaceHolder holder) {
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}
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public void surfaceDestroyed(SurfaceHolder holder) {
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onDestroyed();
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}
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}
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private class SurfaceTextureListener implements TextureView.SurfaceTextureListener {
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public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {
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// We don't do this for surfaceCreated above because it is always followed by a surfaceChanged,
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// but that is not the case here.
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onSizeChanged(width, height);
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}
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public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
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onDestroyed();
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return true; // allow Android to call release() on the SurfaceTexture, we are done drawing to it
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}
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public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {
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onSizeChanged(width, height);
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}
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public void onSurfaceTextureUpdated(SurfaceTexture surface) {
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}
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}
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@Override
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public void setOverScrollMode(int overscrollMode) {
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super.setOverScrollMode(overscrollMode);
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if (mLayerClient != null)
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mLayerClient.getPanZoomController().setOverScrollMode(overscrollMode);
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}
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@Override
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public int getOverScrollMode() {
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if (mLayerClient != null)
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return mLayerClient.getPanZoomController().getOverScrollMode();
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return super.getOverScrollMode();
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}
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@Override
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public void onFocusChanged (boolean gainFocus, int direction, Rect previouslyFocusedRect) {
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super.onFocusChanged(gainFocus, direction, previouslyFocusedRect);
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GeckoAccessibility.onLayerViewFocusChanged(this, gainFocus);
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}
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public void setFullScreen(boolean fullScreen) {
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mFullScreen = fullScreen;
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}
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public boolean isFullScreen() {
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return mFullScreen;
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}
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}
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