CastWindowManager.java revision 1320f92c476a1ad9d19dba2a48c72b75566198e9 
1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5package org.chromium.chromecast.shell;
6
7import android.content.Context;
8import android.graphics.Color;
9import android.util.AttributeSet;
10import android.view.LayoutInflater;
11import android.widget.FrameLayout;
12
13import org.chromium.base.CalledByNative;
14import org.chromium.base.JNINamespace;
15import org.chromium.content.browser.ContentViewCore;
16import org.chromium.content.browser.ContentViewRenderView;
17import org.chromium.ui.base.WindowAndroid;
18
19/**
20 * Container and generator of CastWindow instances.
21 */
22@JNINamespace("chromecast::shell")
23public class CastWindowManager extends FrameLayout {
24    private static final String TAG = "CastWindowManager";
25
26    private WindowAndroid mWindow;
27    private CastWindowAndroid mActiveCastWindow;
28
29    // The target for all content rendering.
30    private ContentViewRenderView mContentViewRenderView;
31
32    /**
33     * Delegate to deliver events from the native window.
34     */
35    public interface Delegate {
36        public void onCreated();
37        public void onClosed();
38    }
39    private Delegate mDelegate;
40
41    /**
42     * Constructor for inflating via XML.
43     */
44    public CastWindowManager(Context context, AttributeSet attrs) {
45        super(context, attrs);
46        nativeInit(this);
47    }
48
49    /**
50     * @param delegate Delegate to handle events.
51     */
52    public void setDelegate(Delegate delegate) {
53        mDelegate = delegate;
54    }
55
56    /**
57     * @param window Represents the activity window.
58     */
59    public void setWindow(WindowAndroid window) {
60        assert window != null;
61        mWindow = window;
62        mContentViewRenderView = new ContentViewRenderView(getContext()) {
63            @Override
64            protected void onReadyToRender() {
65                setOverlayVideoMode(true);
66            }
67        };
68        mContentViewRenderView.onNativeLibraryLoaded(window);
69        // Setting the background color to black avoids rendering a white splash screen
70        // before the players are loaded. See crbug/307113 for details.
71        mContentViewRenderView.setSurfaceViewBackgroundColor(Color.BLACK);
72    }
73
74    /**
75     * @return The window used to generate all shells.
76     */
77    public WindowAndroid getWindow() {
78        return mWindow;
79    }
80
81    /**
82     * @return The currently visible shell view or null if one is not showing.
83     */
84    public CastWindowAndroid getActiveCastWindow() {
85        return mActiveCastWindow;
86    }
87
88    /**
89     * Creates a new shell pointing to the specified URL.
90     * @param url The URL the shell should load upon creation.
91     * @return Pointer of native cast shell instance.
92     */
93    public long launchCastWindow(String url) {
94        return nativeLaunchCastWindow(url);
95    }
96
97    /**
98     * Stops a native cast shell instance created by {@link #launchCastWindow(String)}.
99     * @param nativeCastWindow Pointer of native cast shell instance returned
100     *        by {@link #launchCastWindow(String)}.
101     * @param gracefully Whether or not to call RVH::ClosePage to deliver unload event.
102     * @see #launchCastWindow(String)
103     */
104    public void stopCastWindow(long nativeCastWindow, boolean gracefully) {
105        nativeStopCastWindow(nativeCastWindow, gracefully);
106    }
107
108    @SuppressWarnings("unused")
109    @CalledByNative
110    private Object createCastWindow() {
111        assert mContentViewRenderView != null;
112        LayoutInflater inflater =
113                (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
114        CastWindowAndroid shellView =
115                (CastWindowAndroid) inflater.inflate(R.layout.cast_window_view, null);
116        shellView.setWindow(mWindow);
117
118        if (mActiveCastWindow != null) closeCastWindow(mActiveCastWindow);
119
120        shellView.setContentViewRenderView(mContentViewRenderView);
121        addView(shellView, new FrameLayout.LayoutParams(
122                FrameLayout.LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.MATCH_PARENT));
123        mActiveCastWindow = shellView;
124        ContentViewCore contentViewCore = mActiveCastWindow.getContentViewCore();
125        if (contentViewCore != null) {
126            mContentViewRenderView.setCurrentContentViewCore(contentViewCore);
127            contentViewCore.onShow();
128        }
129
130        if (mDelegate != null) {
131            mDelegate.onCreated();
132        }
133
134        return shellView;
135    }
136
137    @SuppressWarnings("unused")
138    @CalledByNative
139    private void closeCastWindow(CastWindowAndroid shellView) {
140        if (shellView == mActiveCastWindow) mActiveCastWindow = null;
141        ContentViewCore contentViewCore = shellView.getContentViewCore();
142        if (contentViewCore != null) contentViewCore.onHide();
143        shellView.setContentViewRenderView(null);
144        shellView.setWindow(null);
145        removeView(shellView);
146
147        if (mDelegate != null) {
148            mDelegate.onClosed();
149        }
150    }
151
152    private static native void nativeInit(Object shellManagerInstance);
153    private static native long nativeLaunchCastWindow(String url);
154    private static native void nativeStopCastWindow(long pointerOfNativeCastWindow,
155            boolean gracefully);
156    public static native void nativeEnableDevTools(boolean enable);
157}
158