ActivityContentVideoViewClient.java revision 46d4c2bc3267f3f028f39e7e311b0f89aba2e4fd 
1// Copyright 2013 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.content.browser;
6
7import android.annotation.SuppressLint;
8import android.app.Activity;
9import android.os.Build;
10import android.view.Gravity;
11import android.view.View;
12import android.view.ViewGroup;
13import android.view.WindowManager;
14import android.widget.FrameLayout;
15
16/**
17 * Uses an existing Activity to handle displaying video in full screen.
18 */
19public class ActivityContentVideoViewClient implements ContentVideoViewClient {
20    private final Activity mActivity;
21    private View mView;
22
23    public ActivityContentVideoViewClient(Activity activity)  {
24        this.mActivity = activity;
25    }
26
27    @Override
28    public boolean onShowCustomView(View view) {
29        FrameLayout decor = (FrameLayout) mActivity.getWindow().getDecorView();
30        decor.addView(view, 0,
31            new FrameLayout.LayoutParams(
32                    ViewGroup.LayoutParams.MATCH_PARENT,
33                    ViewGroup.LayoutParams.MATCH_PARENT,
34                    Gravity.CENTER));
35        setSystemUiVisibility(decor, true);
36        mView = view;
37        return true;
38    }
39
40    @Override
41    public void onDestroyContentVideoView() {
42        FrameLayout decor = (FrameLayout) mActivity.getWindow().getDecorView();
43        decor.removeView(mView);
44        setSystemUiVisibility(decor, false);
45        mView = null;
46    }
47
48    @Override
49    public View getVideoLoadingProgressView() {
50        return null;
51    }
52
53    /**
54     * Returns the system ui visibility after entering or exiting fullscreen.
55     * @param view The decor view belongs to the activity window
56     * @param enterFullscreen True if video is going fullscreen, or false otherwise.
57     */
58    @SuppressLint("InlinedApi")
59    private void setSystemUiVisibility(View view, boolean enterFullscreen) {
60        if (enterFullscreen) {
61            mActivity.getWindow().setFlags(
62                    WindowManager.LayoutParams.FLAG_FULLSCREEN,
63                    WindowManager.LayoutParams.FLAG_FULLSCREEN);
64        } else {
65            mActivity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
66        }
67        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
68            return;
69        }
70
71        int systemUiVisibility = view.getSystemUiVisibility();
72        int flags = View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
73                | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
74                | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
75                | View.SYSTEM_UI_FLAG_FULLSCREEN
76                | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
77        if (enterFullscreen) {
78            systemUiVisibility |= flags;
79        } else {
80            systemUiVisibility &= ~flags;
81        }
82        view.setSystemUiVisibility(systemUiVisibility);
83    }
84}
85