bridge/src/android/view/AttachInfo_Accessor.java

/*
 * Copyright (C) 2011 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.view;

import android.content.Context;
import android.graphics.HardwareRenderer;
import android.graphics.RenderNode;
import android.os.Handler;
import android.view.View.AttachInfo;

import com.android.layoutlib.common.util.ReflectionUtils;

/**
 * Class allowing access to package-protected methods/fields.
 */
public class AttachInfo_Accessor {

    public static void setAttachInfo(ViewGroup view, HardwareRenderer renderer) {
        Context context = view.getContext();
        WindowManagerImpl wm = (WindowManagerImpl)context.getSystemService(Context.WINDOW_SERVICE);
        wm.setBaseRootView(view);
        Display display = wm.getDefaultDisplay();
        ViewRootImpl root = new ViewRootImpl(context, display);
        root.mAttachInfo.mThreadedRenderer = new ThreadedRenderer(context, false,
                "delegate-renderer") {
            @Override
            public void registerAnimatingRenderNode(RenderNode animator) {
                if (renderer != null) {
                    renderer.registerAnimatingRenderNode(animator);
                } else {
                    super.registerAnimatingRenderNode(animator);
                }
            }
        };
        AttachInfo info = new AttachInfo(ReflectionUtils.createProxy(IWindowSession.class),
                ReflectionUtils.createProxy(IWindow.class), display, root, new Handler(), null,
                context);
        info.mHasWindowFocus = true;
        info.mWindowVisibility = View.VISIBLE;
        info.mInTouchMode = false; // this is so that we can display selections.
        info.mHardwareAccelerated = true;
        // We do not use this one at all, it is only needed to satisfy null checks in View
        info.mThreadedRenderer = new ThreadedRenderer(context, false, "layoutlib-renderer");
        view.dispatchAttachedToWindow(info, 0);
    }

    public static void dispatchOnPreDraw(View view) {
        view.mAttachInfo.mTreeObserver.dispatchOnPreDraw();
    }

    public static void detachFromWindow(final View view) {
        if (view != null) {
            final View.AttachInfo attachInfo = view.mAttachInfo;
            view.dispatchDetachedFromWindow();
            if (attachInfo != null) {
                final ThreadedRenderer threadedRenderer = attachInfo.mThreadedRenderer;
                if(threadedRenderer != null) {
                    threadedRenderer.destroy();
                }
                ThreadedRenderer rootRenderer =
                        attachInfo.mViewRootImpl.mAttachInfo.mThreadedRenderer;
                if (rootRenderer != null) {
                    rootRenderer.destroy();
                }
            }
        }
    }

    public static ViewRootImpl getRootView(View view) {
        return view.mAttachInfo != null ? view.mAttachInfo.mViewRootImpl : null;
    }
}