675 lines
24 KiB
Java
675 lines
24 KiB
Java
/*
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* Copyright (C) 2009 The Android Open Source Project
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* Copyright (c) 2010, The Linux Foundation. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.webkit;
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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.media.MediaPlayer;
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import android.media.MediaPlayer.OnPreparedListener;
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import android.media.MediaPlayer.OnCompletionListener;
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import android.media.MediaPlayer.OnErrorListener;
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import android.net.http.EventHandler;
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import android.net.http.Headers;
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import android.net.http.RequestHandle;
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import android.net.http.RequestQueue;
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import android.net.http.SslCertificate;
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import android.net.http.SslError;
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import android.net.Uri;
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import android.os.Bundle;
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import android.os.Handler;
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import android.os.Looper;
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import android.os.Message;
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import android.util.Log;
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import android.view.MotionEvent;
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import android.view.Gravity;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.AbsoluteLayout;
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import android.widget.FrameLayout;
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import android.widget.MediaController;
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import android.widget.VideoView;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Timer;
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import java.util.TimerTask;
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/**
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* <p>Proxy for HTML5 video views.
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*/
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class HTML5VideoViewProxy extends Handler
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implements MediaPlayer.OnPreparedListener,
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MediaPlayer.OnCompletionListener,
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MediaPlayer.OnErrorListener {
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// Logging tag.
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private static final String LOGTAG = "HTML5VideoViewProxy";
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// Message Ids for WebCore thread -> UI thread communication.
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private static final int PLAY = 100;
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private static final int SEEK = 101;
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private static final int PAUSE = 102;
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private static final int ERROR = 103;
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private static final int LOAD_DEFAULT_POSTER = 104;
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private static final int SUSPEND = 105;
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private static final int RESUME = 106;
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// Message Ids to be handled on the WebCore thread
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private static final int PREPARED = 200;
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private static final int ENDED = 201;
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private static final int POSTER_FETCHED = 202;
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private static final int PAUSED = 203;
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private static final int HIDDEN = 204;
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private static final String COOKIE = "Cookie";
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// Timer thread -> UI thread
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private static final int TIMEUPDATE = 300;
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// The C++ MediaPlayerPrivateAndroid object.
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int mNativePointer;
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// The handler for WebCore thread messages;
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private Handler mWebCoreHandler;
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// The WebView instance that created this view.
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private WebView mWebView;
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// The poster image to be shown when the video is not playing.
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// This ref prevents the bitmap from being GC'ed.
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private Bitmap mPoster;
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// The poster downloader.
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private PosterDownloader mPosterDownloader;
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// The seek position.
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private int mSeekPosition;
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// A helper class to control the playback. This executes on the UI thread!
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private static final class VideoPlayer {
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// The proxy that is currently playing (if any).
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private static HTML5VideoViewProxy mCurrentProxy;
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// The VideoView instance. This is a singleton for now, at least until
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// http://b/issue?id=1973663 is fixed.
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private static VideoView mVideoView;
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// The progress view.
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private static View mProgressView;
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// The container for the progress view and video view
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private static FrameLayout mLayout;
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// The timer for timeupate events.
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// See http://www.whatwg.org/specs/web-apps/current-work/#event-media-timeupdate
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private static Timer mTimer;
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private static final class TimeupdateTask extends TimerTask {
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private HTML5VideoViewProxy mProxy;
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public TimeupdateTask(HTML5VideoViewProxy proxy) {
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mProxy = proxy;
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}
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public void run() {
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mProxy.onTimeupdate();
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}
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}
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// The spec says the timer should fire every 250 ms or less.
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private static final int TIMEUPDATE_PERIOD = 250; // ms
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static boolean isVideoSelfEnded = false;
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private static final WebChromeClient.CustomViewCallback mCallback =
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new WebChromeClient.CustomViewCallback() {
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public void onCustomViewHidden() {
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// At this point the videoview is pretty much destroyed.
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// It listens to SurfaceHolder.Callback.SurfaceDestroyed event
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// which happens when the video view is detached from its parent
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// view. This happens in the WebChromeClient before this method
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// is invoked.
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if(mTimer != null) {
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mTimer.cancel();
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mTimer = null;
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}
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if (mVideoView.isPlaying()) {
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mVideoView.stopPlayback();
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}
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if (isVideoSelfEnded)
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mCurrentProxy.dispatchOnEnded();
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else
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mCurrentProxy.dispatchOnPaused();
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// Re enable plugin views.
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mCurrentProxy.getWebView().getViewManager().showAll();
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mCurrentProxy.dispatchOnHidden();
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isVideoSelfEnded = false;
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mCurrentProxy = null;
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mLayout.removeView(mVideoView);
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mVideoView = null;
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if (mProgressView != null) {
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mLayout.removeView(mProgressView);
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mProgressView = null;
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}
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mLayout = null;
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}
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public void onCustomViewSuspend() {
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suspend( mCurrentProxy );
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}
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public void onCustomViewResume() {
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resume( mCurrentProxy );
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}
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};
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public static void play(String url, int time, HTML5VideoViewProxy proxy,
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WebChromeClient client) {
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if (mCurrentProxy == proxy) {
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if (!mVideoView.isPlaying()) {
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mVideoView.start();
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}
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return;
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}
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if (mCurrentProxy != null) {
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// Some other video is already playing. Notify the caller that its playback ended.
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proxy.dispatchOnEnded();
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return;
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}
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mCurrentProxy = proxy;
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// Create a FrameLayout that will contain the VideoView and the
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// progress view (if any).
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mLayout = new FrameLayout(proxy.getContext());
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FrameLayout.LayoutParams layoutParams = new FrameLayout.LayoutParams(
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ViewGroup.LayoutParams.WRAP_CONTENT,
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ViewGroup.LayoutParams.WRAP_CONTENT,
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Gravity.CENTER);
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mVideoView = new VideoView(proxy.getContext());
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mVideoView.setWillNotDraw(false);
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mVideoView.setMediaController(new MediaController(proxy.getContext()));
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String cookieValue = CookieManager.getInstance().getCookie(url);
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Map<String, String> headers = null;
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if (cookieValue != null) {
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headers = new HashMap<String, String>();
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headers.put(COOKIE, cookieValue);
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}
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mVideoView.setVideoURI(Uri.parse(url), headers);
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mVideoView.setOnCompletionListener(proxy);
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mVideoView.setOnPreparedListener(proxy);
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mVideoView.setOnErrorListener(proxy);
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mVideoView.seekTo(time);
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mLayout.addView(mVideoView, layoutParams);
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mProgressView = client.getVideoLoadingProgressView();
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if (mProgressView != null) {
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mLayout.addView(mProgressView, layoutParams);
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mProgressView.setVisibility(View.VISIBLE);
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}
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mLayout.setVisibility(View.VISIBLE);
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mTimer = new Timer();
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mVideoView.start();
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client.onShowCustomView(mLayout, mCallback);
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// Plugins like Flash will draw over the video so hide
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// them while we're playing.
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mCurrentProxy.getWebView().getViewManager().hideAll();
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}
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public static boolean isPlaying(HTML5VideoViewProxy proxy) {
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return (mCurrentProxy == proxy && mVideoView != null && mVideoView.isPlaying());
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}
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public static int getCurrentPosition() {
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int currentPosMs = 0;
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if (mVideoView != null) {
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currentPosMs = mVideoView.getCurrentPosition();
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}
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return currentPosMs;
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}
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public static void seek(int time, HTML5VideoViewProxy proxy) {
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if (mCurrentProxy == proxy && time >= 0 && mVideoView != null) {
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mVideoView.seekTo(time);
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}
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}
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public static void pause(HTML5VideoViewProxy proxy) {
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if (mCurrentProxy == proxy && mVideoView != null) {
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mVideoView.pause();
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mTimer.purge();
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}
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}
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public static void suspend(HTML5VideoViewProxy proxy) {
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if (mCurrentProxy == proxy && mVideoView != null) {
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mTimer.cancel();
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mTimer = null;
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mVideoView.suspend();
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if (mProgressView != null) {
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mLayout.removeView(mProgressView);
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mProgressView = null;
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}
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}
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}
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public static void resume(HTML5VideoViewProxy proxy) {
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if (mCurrentProxy == proxy && mVideoView != null) {
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mVideoView.resume();
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mTimer = new Timer();
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if (mTimer != null )
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{
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mTimer.schedule(new TimeupdateTask(mCurrentProxy), TIMEUPDATE_PERIOD, TIMEUPDATE_PERIOD);
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}
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mLayout.setVisibility(View.VISIBLE);
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}
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}
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public static void onPrepared() {
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if (mProgressView == null || mLayout == null) {
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return;
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}
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mTimer.schedule(new TimeupdateTask(mCurrentProxy), TIMEUPDATE_PERIOD, TIMEUPDATE_PERIOD);
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mProgressView.setVisibility(View.GONE);
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mLayout.removeView(mProgressView);
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mProgressView = null;
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}
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}
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// A bunch event listeners for our VideoView
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// MediaPlayer.OnPreparedListener
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public void onPrepared(MediaPlayer mp) {
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VideoPlayer.onPrepared();
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Message msg = Message.obtain(mWebCoreHandler, PREPARED);
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Map<String, Object> map = new HashMap<String, Object>();
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map.put("dur", new Integer(mp.getDuration()));
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map.put("width", new Integer(mp.getVideoWidth()));
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map.put("height", new Integer(mp.getVideoHeight()));
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msg.obj = map;
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mWebCoreHandler.sendMessage(msg);
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}
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// MediaPlayer.OnCompletionListener;
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public void onCompletion(MediaPlayer mp) {
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// The video ended by itself, so we need to
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// send a message to the UI thread to dismiss
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// the video view and to return to the WebView.
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// arg1 == 1 means the video ends by itself.
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sendMessage(obtainMessage(ENDED, 1, 0));
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}
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// MediaPlayer.OnErrorListener
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public boolean onError(MediaPlayer mp, int what, int extra) {
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sendMessage(obtainMessage(ERROR));
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return false;
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}
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public void dispatchOnEnded() {
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Message msg = Message.obtain(mWebCoreHandler, ENDED);
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mWebCoreHandler.sendMessage(msg);
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}
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public void dispatchOnPaused() {
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Message msg = Message.obtain(mWebCoreHandler, PAUSED);
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mWebCoreHandler.sendMessage(msg);
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}
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public void dispatchOnHidden() {
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Message msg = Message.obtain(mWebCoreHandler, HIDDEN);
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mWebCoreHandler.sendMessage(msg);
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}
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public void onTimeupdate() {
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sendMessage(obtainMessage(TIMEUPDATE));
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}
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// Handler for the messages from WebCore or Timer thread to the UI thread.
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@Override
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public void handleMessage(Message msg) {
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// This executes on the UI thread.
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switch (msg.what) {
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case PLAY: {
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String url = (String) msg.obj;
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WebChromeClient client = mWebView.getWebChromeClient();
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if (client != null) {
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VideoPlayer.play(url, mSeekPosition, this, client);
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}
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break;
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}
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case SEEK: {
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Integer time = (Integer) msg.obj;
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mSeekPosition = time;
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VideoPlayer.seek(mSeekPosition, this);
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break;
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}
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case PAUSE: {
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VideoPlayer.pause(this);
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break;
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}
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case SUSPEND: {
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VideoPlayer.suspend(this);
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break;
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}
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case RESUME: {
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VideoPlayer.resume(this);
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break;
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}
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case ENDED:
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if (msg.arg1 == 1)
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VideoPlayer.isVideoSelfEnded = true;
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case ERROR: {
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WebChromeClient client = mWebView.getWebChromeClient();
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if (client != null) {
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client.onHideCustomView();
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}
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break;
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}
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case LOAD_DEFAULT_POSTER: {
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WebChromeClient client = mWebView.getWebChromeClient();
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if (client != null) {
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doSetPoster(client.getDefaultVideoPoster());
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}
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break;
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}
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case TIMEUPDATE: {
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if (VideoPlayer.isPlaying(this)) {
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sendTimeupdate();
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}
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break;
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}
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}
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}
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// Everything below this comment executes on the WebCore thread, except for
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// the EventHandler methods, which are called on the network thread.
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// A helper class that knows how to download posters
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private static final class PosterDownloader implements EventHandler {
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// The request queue. This is static as we have one queue for all posters.
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private static RequestQueue mRequestQueue;
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private static int mQueueRefCount = 0;
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// The poster URL
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private String mUrl;
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// The proxy we're doing this for.
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private final HTML5VideoViewProxy mProxy;
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// The poster bytes. We only touch this on the network thread.
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private ByteArrayOutputStream mPosterBytes;
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// The request handle. We only touch this on the WebCore thread.
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private RequestHandle mRequestHandle;
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// The response status code.
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private int mStatusCode;
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// The response headers.
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private Headers mHeaders;
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// The handler to handle messages on the WebCore thread.
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private Handler mHandler;
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public PosterDownloader(String url, HTML5VideoViewProxy proxy) {
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mUrl = url;
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mProxy = proxy;
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mHandler = new Handler();
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}
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// Start the download. Called on WebCore thread.
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public void start() {
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retainQueue();
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mRequestHandle = mRequestQueue.queueRequest(mUrl, "GET", null, this, null, 0, -1, false);
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}
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// Cancel the download if active and release the queue. Called on WebCore thread.
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public void cancelAndReleaseQueue() {
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if (mRequestHandle != null) {
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mRequestHandle.cancel();
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mRequestHandle = null;
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}
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releaseQueue();
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}
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// EventHandler methods. Executed on the network thread.
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public void status(int major_version,
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int minor_version,
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int code,
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String reason_phrase) {
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mStatusCode = code;
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}
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public void headers(Headers headers) {
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mHeaders = headers;
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}
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public void data(byte[] data, int len) {
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if (mPosterBytes == null) {
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mPosterBytes = new ByteArrayOutputStream();
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}
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mPosterBytes.write(data, 0, len);
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}
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public void endData() {
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if (mStatusCode == 200) {
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if (mPosterBytes.size() > 0) {
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Bitmap poster = BitmapFactory.decodeByteArray(
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mPosterBytes.toByteArray(), 0, mPosterBytes.size());
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mProxy.doSetPoster(poster);
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}
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cleanup();
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} else if (mStatusCode >= 300 && mStatusCode < 400) {
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// We have a redirect.
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mUrl = mHeaders.getLocation();
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if (mUrl != null) {
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mHandler.post(new Runnable() {
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public void run() {
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if (mRequestHandle != null) {
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mRequestHandle.setupRedirect(mUrl, mStatusCode,
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new HashMap<String, String>());
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}
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}
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});
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}
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}
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}
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public void certificate(SslCertificate certificate) {
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// Don't care.
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}
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public void error(int id, String description) {
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cleanup();
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}
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public boolean handleSslErrorRequest(SslError error) {
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// Don't care. If this happens, data() will never be called so
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// mPosterBytes will never be created, so no need to call cleanup.
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return false;
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}
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// Tears down the poster bytes stream. Called on network thread.
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private void cleanup() {
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if (mPosterBytes != null) {
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try {
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mPosterBytes.close();
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} catch (IOException ignored) {
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// Ignored.
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} finally {
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mPosterBytes = null;
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}
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}
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}
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// Queue management methods. Called on WebCore thread.
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private void retainQueue() {
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if (mRequestQueue == null) {
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mRequestQueue = new RequestQueue(mProxy.getContext());
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}
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mQueueRefCount++;
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}
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private void releaseQueue() {
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if (mQueueRefCount == 0) {
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return;
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}
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if (--mQueueRefCount == 0) {
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mRequestQueue.shutdown();
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mRequestQueue = null;
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}
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}
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}
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/**
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* Private constructor.
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* @param webView is the WebView that hosts the video.
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* @param nativePtr is the C++ pointer to the MediaPlayerPrivate object.
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*/
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private HTML5VideoViewProxy(WebView webView, int nativePtr) {
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// This handler is for the main (UI) thread.
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super(Looper.getMainLooper());
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// Save the WebView object.
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mWebView = webView;
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// Save the native ptr
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mNativePointer = nativePtr;
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// create the message handler for this thread
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createWebCoreHandler();
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}
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private void createWebCoreHandler() {
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mWebCoreHandler = new Handler() {
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@Override
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public void handleMessage(Message msg) {
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switch (msg.what) {
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case PREPARED: {
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Map<String, Object> map = (Map<String, Object>) msg.obj;
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Integer duration = (Integer) map.get("dur");
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Integer width = (Integer) map.get("width");
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Integer height = (Integer) map.get("height");
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|
nativeOnPrepared(duration.intValue(), width.intValue(),
|
|
height.intValue(), mNativePointer);
|
|
break;
|
|
}
|
|
case ENDED:
|
|
nativeOnEnded(mNativePointer);
|
|
break;
|
|
case PAUSED:
|
|
nativeOnPaused(mNativePointer);
|
|
break;
|
|
case POSTER_FETCHED:
|
|
Bitmap poster = (Bitmap) msg.obj;
|
|
nativeOnPosterFetched(poster, mNativePointer);
|
|
break;
|
|
case TIMEUPDATE:
|
|
nativeOnTimeupdate(msg.arg1, mNativePointer);
|
|
break;
|
|
case HIDDEN:
|
|
nativeOnHidden(mNativePointer);
|
|
break;
|
|
}
|
|
}
|
|
};
|
|
}
|
|
|
|
private void doSetPoster(Bitmap poster) {
|
|
if (poster == null) {
|
|
return;
|
|
}
|
|
// Save a ref to the bitmap and send it over to the WebCore thread.
|
|
mPoster = poster;
|
|
Message msg = Message.obtain(mWebCoreHandler, POSTER_FETCHED);
|
|
msg.obj = poster;
|
|
mWebCoreHandler.sendMessage(msg);
|
|
}
|
|
|
|
private void sendTimeupdate() {
|
|
Message msg = Message.obtain(mWebCoreHandler, TIMEUPDATE);
|
|
msg.arg1 = VideoPlayer.getCurrentPosition();
|
|
mWebCoreHandler.sendMessage(msg);
|
|
}
|
|
|
|
public Context getContext() {
|
|
return mWebView.getContext();
|
|
}
|
|
|
|
// The public methods below are all called from WebKit only.
|
|
/**
|
|
* Play a video stream.
|
|
* @param url is the URL of the video stream.
|
|
*/
|
|
public void play(String url) {
|
|
if (url == null) {
|
|
return;
|
|
}
|
|
Message message = obtainMessage(PLAY);
|
|
message.obj = url;
|
|
sendMessage(message);
|
|
}
|
|
|
|
/**
|
|
* Seek into the video stream.
|
|
* @param time is the position in the video stream.
|
|
*/
|
|
public void seek(int time) {
|
|
Message message = obtainMessage(SEEK);
|
|
message.obj = new Integer(time);
|
|
sendMessage(message);
|
|
}
|
|
|
|
/**
|
|
* Pause the playback.
|
|
*/
|
|
public void pause() {
|
|
Message message = obtainMessage(PAUSE);
|
|
sendMessage(message);
|
|
}
|
|
|
|
/**
|
|
* Tear down this proxy object.
|
|
*/
|
|
public void teardown() {
|
|
// This is called by the C++ MediaPlayerPrivate dtor.
|
|
// Cancel any active poster download.
|
|
if (mPosterDownloader != null) {
|
|
mPosterDownloader.cancelAndReleaseQueue();
|
|
}
|
|
mNativePointer = 0;
|
|
}
|
|
|
|
/**
|
|
* Load the poster image.
|
|
* @param url is the URL of the poster image.
|
|
*/
|
|
public void loadPoster(String url) {
|
|
if (url == null) {
|
|
Message message = obtainMessage(LOAD_DEFAULT_POSTER);
|
|
sendMessage(message);
|
|
return;
|
|
}
|
|
// Cancel any active poster download.
|
|
if (mPosterDownloader != null) {
|
|
mPosterDownloader.cancelAndReleaseQueue();
|
|
}
|
|
// Load the poster asynchronously
|
|
mPosterDownloader = new PosterDownloader(url, this);
|
|
mPosterDownloader.start();
|
|
}
|
|
|
|
/**
|
|
* The factory for HTML5VideoViewProxy instances.
|
|
* @param webViewCore is the WebViewCore that is requesting the proxy.
|
|
*
|
|
* @return a new HTML5VideoViewProxy object.
|
|
*/
|
|
public static HTML5VideoViewProxy getInstance(WebViewCore webViewCore, int nativePtr) {
|
|
return new HTML5VideoViewProxy(webViewCore.getWebView(), nativePtr);
|
|
}
|
|
|
|
/* package */ WebView getWebView() {
|
|
return mWebView;
|
|
}
|
|
|
|
private native void nativeOnPrepared(int duration, int width, int height, int nativePointer);
|
|
private native void nativeOnEnded(int nativePointer);
|
|
private native void nativeOnPaused(int nativePointer);
|
|
private native void nativeOnPosterFetched(Bitmap poster, int nativePointer);
|
|
private native void nativeOnTimeupdate(int position, int nativePointer);
|
|
private native void nativeOnHidden(int nativePointer);
|
|
}
|