BridgeRenderSession.java revision 39e540caffca2584aa6c4cb74ce42dceb24a93f7 
1/*
2 * Copyright (C) 2010 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
17package com.android.layoutlib.bridge;
18
19import com.android.ide.common.rendering.api.IAnimationListener;
20import com.android.ide.common.rendering.api.ILayoutPullParser;
21import com.android.ide.common.rendering.api.RenderParams;
22import com.android.ide.common.rendering.api.RenderSession;
23import com.android.ide.common.rendering.api.Result;
24import com.android.ide.common.rendering.api.ViewInfo;
25import com.android.layoutlib.bridge.impl.RenderSessionImpl;
26import com.android.tools.layoutlib.java.System_Delegate;
27import com.android.util.PropertiesMap;
28
29import android.view.View;
30import android.view.ViewGroup;
31
32import java.awt.image.BufferedImage;
33import java.util.List;
34import java.util.Map;
35
36/**
37 * An implementation of {@link RenderSession}.
38 *
39 * This is a pretty basic class that does almost nothing. All of the work is done in
40 * {@link RenderSessionImpl}.
41 *
42 */
43public class BridgeRenderSession extends RenderSession {
44
45    private final RenderSessionImpl mSession;
46    private Result mLastResult;
47
48    @Override
49    public Result getResult() {
50        return mLastResult;
51    }
52
53    @Override
54    public BufferedImage getImage() {
55        return mSession.getImage();
56    }
57
58    @Override
59    public boolean isAlphaChannelImage() {
60        return mSession.isAlphaChannelImage();
61    }
62
63    @Override
64    public List<ViewInfo> getRootViews() {
65        return mSession.getViewInfos();
66    }
67
68    @Override
69    public List<ViewInfo> getSystemRootViews() {
70        return mSession.getSystemViewInfos();
71    }
72
73    @Override
74    public Map<Object, PropertiesMap> getDefaultProperties() {
75        return mSession.getDefaultProperties();
76    }
77
78    @Override
79    public Result render(long timeout, boolean forceMeasure) {
80        try {
81            Bridge.prepareThread();
82            mLastResult = mSession.acquire(timeout);
83            if (mLastResult.isSuccess()) {
84                if (forceMeasure) {
85                    mSession.invalidateRenderingSize();
86                }
87                mLastResult = mSession.render(false /*freshRender*/);
88            }
89        } finally {
90            mSession.release();
91            Bridge.cleanupThread();
92        }
93
94        return mLastResult;
95    }
96
97    @Override
98    public Result animate(Object targetObject, String animationName,
99            boolean isFrameworkAnimation, IAnimationListener listener) {
100        try {
101            Bridge.prepareThread();
102            mLastResult = mSession.acquire(RenderParams.DEFAULT_TIMEOUT);
103            if (mLastResult.isSuccess()) {
104                mLastResult = mSession.animate(targetObject, animationName, isFrameworkAnimation,
105                        listener);
106            }
107        } finally {
108            mSession.release();
109            Bridge.cleanupThread();
110        }
111
112        return mLastResult;
113    }
114
115    @Override
116    public Result insertChild(Object parentView, ILayoutPullParser childXml, int index,
117            IAnimationListener listener) {
118        if (parentView instanceof ViewGroup == false) {
119            throw new IllegalArgumentException("parentView is not a ViewGroup");
120        }
121
122        try {
123            Bridge.prepareThread();
124            mLastResult = mSession.acquire(RenderParams.DEFAULT_TIMEOUT);
125            if (mLastResult.isSuccess()) {
126                mLastResult = mSession.insertChild((ViewGroup) parentView, childXml, index,
127                        listener);
128            }
129        } finally {
130            mSession.release();
131            Bridge.cleanupThread();
132        }
133
134        return mLastResult;
135    }
136
137
138    @Override
139    public Result moveChild(Object parentView, Object childView, int index,
140            Map<String, String> layoutParams, IAnimationListener listener) {
141        if (parentView instanceof ViewGroup == false) {
142            throw new IllegalArgumentException("parentView is not a ViewGroup");
143        }
144        if (childView instanceof View == false) {
145            throw new IllegalArgumentException("childView is not a View");
146        }
147
148        try {
149            Bridge.prepareThread();
150            mLastResult = mSession.acquire(RenderParams.DEFAULT_TIMEOUT);
151            if (mLastResult.isSuccess()) {
152                mLastResult = mSession.moveChild((ViewGroup) parentView, (View) childView, index,
153                        layoutParams, listener);
154            }
155        } finally {
156            mSession.release();
157            Bridge.cleanupThread();
158        }
159
160        return mLastResult;
161    }
162
163    @Override
164    public Result removeChild(Object childView, IAnimationListener listener) {
165        if (childView instanceof View == false) {
166            throw new IllegalArgumentException("childView is not a View");
167        }
168
169        try {
170            Bridge.prepareThread();
171            mLastResult = mSession.acquire(RenderParams.DEFAULT_TIMEOUT);
172            if (mLastResult.isSuccess()) {
173                mLastResult = mSession.removeChild((View) childView, listener);
174            }
175        } finally {
176            mSession.release();
177            Bridge.cleanupThread();
178        }
179
180        return mLastResult;
181    }
182
183    @Override
184    public void setSystemTimeNanos(long nanos) {
185        System_Delegate.setNanosTime(nanos);
186    }
187
188    @Override
189    public void setSystemBootTimeNanos(long nanos) {
190        System_Delegate.setBootTimeNanos(nanos);
191    }
192
193    @Override
194    public void setElapsedFrameTimeNanos(long nanos) {
195        if (mSession != null) {
196            mSession.setElapsedFrameTimeNanos(nanos);
197        }
198    }
199
200    @Override
201    public void dispose() {
202        if (mSession != null) {
203            mSession.dispose();
204        }
205    }
206
207    /*package*/ BridgeRenderSession(RenderSessionImpl scene, Result lastResult) {
208        mSession = scene;
209        if (scene != null) {
210            mSession.setScene(this);
211        }
212        mLastResult = lastResult;
213    }
214}
215