Craig Mautner | 4504de5 | 2013-12-20 09:06:56 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2013 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package android.app; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | import android.content.ContextWrapper; |
| 21 | import android.content.Intent; |
| 22 | import android.graphics.SurfaceTexture; |
| 23 | import android.os.IBinder; |
| 24 | import android.os.RemoteException; |
| 25 | import android.util.AttributeSet; |
| 26 | import android.util.DisplayMetrics; |
| 27 | import android.view.Surface; |
| 28 | import android.view.TextureView; |
| 29 | import android.view.TextureView.SurfaceTextureListener; |
| 30 | import android.view.ViewGroup; |
| 31 | import android.view.WindowManager; |
| 32 | |
| 33 | public class ActivityView extends ViewGroup { |
| 34 | private final TextureView mTextureView; |
| 35 | private IActivityContainer mActivityContainer; |
| 36 | private Activity mActivity; |
| 37 | private boolean mAttached; |
| 38 | private int mWidth; |
| 39 | private int mHeight; |
| 40 | |
| 41 | public ActivityView(Context context) { |
| 42 | this(context, null); |
| 43 | } |
| 44 | |
| 45 | public ActivityView(Context context, AttributeSet attrs) { |
| 46 | this(context, attrs, 0); |
| 47 | } |
| 48 | |
| 49 | public ActivityView(Context context, AttributeSet attrs, int defStyle) { |
| 50 | super(context, attrs, defStyle); |
| 51 | |
| 52 | while (context instanceof ContextWrapper) { |
| 53 | if (context instanceof Activity) { |
| 54 | mActivity = (Activity)context; |
| 55 | break; |
| 56 | } |
| 57 | context = ((ContextWrapper)context).getBaseContext(); |
| 58 | } |
| 59 | if (mActivity == null) { |
| 60 | throw new IllegalStateException("The ActivityView's Context is not an Activity."); |
| 61 | } |
| 62 | |
| 63 | mTextureView = new TextureView(context); |
| 64 | mTextureView.setSurfaceTextureListener(new ActivityViewSurfaceTextureListener()); |
| 65 | addView(mTextureView); |
| 66 | } |
| 67 | |
| 68 | @Override |
| 69 | protected void onLayout(boolean changed, int l, int t, int r, int b) { |
| 70 | mTextureView.layout(l, t, r, b); |
| 71 | } |
| 72 | |
| 73 | @Override |
| 74 | protected void onAttachedToWindow() { |
| 75 | try { |
| 76 | final IBinder token = mActivity.getActivityToken(); |
| 77 | mActivityContainer = |
| 78 | ActivityManagerNative.getDefault().createActivityContainer(token, null); |
| 79 | } catch (RemoteException e) { |
| 80 | throw new IllegalStateException("ActivityView: Unable to create ActivityContainer. " |
| 81 | + e); |
| 82 | } |
| 83 | |
| 84 | final SurfaceTexture surfaceTexture = mTextureView.getSurfaceTexture(); |
| 85 | if (surfaceTexture != null) { |
| 86 | createActivityView(surfaceTexture); |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | @Override |
| 91 | protected void onDetachedFromWindow() { |
| 92 | if (mActivityContainer != null) { |
| 93 | try { |
| 94 | mActivityContainer.deleteActivityView(); |
| 95 | } catch (RemoteException e) { |
| 96 | } |
| 97 | mActivityContainer = null; |
| 98 | } |
| 99 | mAttached = false; |
| 100 | } |
| 101 | |
| 102 | public void startActivity(Intent intent) { |
| 103 | if (mActivityContainer != null && mAttached) { |
| 104 | try { |
| 105 | mActivityContainer.startActivity(intent); |
| 106 | } catch (RemoteException e) { |
| 107 | throw new IllegalStateException("ActivityView: Unable to startActivity. " + e); |
| 108 | } |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | /** Call when both mActivityContainer and mTextureView's SurfaceTexture are not null */ |
| 113 | private void createActivityView(SurfaceTexture surfaceTexture) { |
| 114 | WindowManager wm = (WindowManager)mActivity.getSystemService(Context.WINDOW_SERVICE); |
| 115 | DisplayMetrics metrics = new DisplayMetrics(); |
| 116 | wm.getDefaultDisplay().getMetrics(metrics); |
| 117 | |
| 118 | try { |
| 119 | mActivityContainer.createActivityView(new Surface(surfaceTexture), mWidth, mHeight, |
| 120 | metrics.densityDpi); |
| 121 | } catch (RemoteException e) { |
| 122 | mActivityContainer = null; |
| 123 | throw new IllegalStateException( |
| 124 | "ActivityView: Unable to create ActivityContainer. " + e); |
| 125 | } |
| 126 | mAttached = true; |
| 127 | } |
| 128 | |
| 129 | private class ActivityViewSurfaceTextureListener implements SurfaceTextureListener { |
| 130 | @Override |
| 131 | public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture, int width, |
| 132 | int height) { |
| 133 | mWidth = width; |
| 134 | mHeight = height; |
| 135 | if (mActivityContainer != null) { |
| 136 | createActivityView(surfaceTexture); |
| 137 | } |
| 138 | } |
| 139 | |
| 140 | @Override |
| 141 | public void onSurfaceTextureSizeChanged(SurfaceTexture surfaceTexture, int width, |
| 142 | int height) { |
| 143 | } |
| 144 | |
| 145 | @Override |
| 146 | public boolean onSurfaceTextureDestroyed(SurfaceTexture surfaceTexture) { |
| 147 | try { |
| 148 | mActivityContainer.deleteActivityView(); |
| 149 | // TODO: Add binderDied to handle this nullification. |
| 150 | mActivityContainer = null; |
| 151 | } catch (RemoteException r) { |
| 152 | } |
| 153 | mAttached = false; |
| 154 | return false; |
| 155 | } |
| 156 | |
| 157 | @Override |
| 158 | public void onSurfaceTextureUpdated(SurfaceTexture surfaceTexture) { |
| 159 | |
| 160 | } |
| 161 | |
| 162 | } |
| 163 | } |