core/java/android/app/AssistData.java - platform/frameworks/base - Gitiles

 /*
  * Copyright (C) 2015 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.app;

 import android.content.ComponentName;
 import android.graphics.Rect;
 import android.os.Bundle;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.util.Log;
 import android.view.View;
 import android.view.ViewAssistData;
 import android.view.ViewGroup;
 import android.view.ViewRootImpl;
 import android.view.WindowManagerGlobal;
 import android.widget.Checkable;

 import java.util.ArrayList;

 /**
  * Assist data automatically created by the platform's implementation
  * of {@link Activity#onProvideAssistData}.  Retrieve it from the assist
  * data with {@link #getAssistData(android.os.Bundle)}.
  */
 final public class AssistData implements Parcelable {
     static final String TAG = "AssistData";

     /**
      * Key name this data structure is stored in the Bundle generated by
      * {@link Activity#onProvideAssistData}.
      */
     public static final String ASSIST_KEY = "android:assist";

     final ComponentName mActivityComponent;

     final ArrayList<ViewNodeImpl> mRootViews = new ArrayList<>();

     ViewAssistDataImpl mTmpViewAssistDataImpl = new ViewAssistDataImpl();
     Bundle mTmpExtras = new Bundle();

     final static class ViewAssistDataImpl extends ViewAssistData {
         CharSequence mText;
         int mTextSelectionStart = -1;
         int mTextSelectionEnd = -1;
         CharSequence mHint;

         @Override
         public void setText(CharSequence text) {
             mText = text;
             mTextSelectionStart = mTextSelectionEnd = -1;
         }

         @Override
         public void setText(CharSequence text, int selectionStart, int selectionEnd) {
             mText = text;
             mTextSelectionStart = selectionStart;
             mTextSelectionEnd = selectionEnd;
         }

         @Override
         public void setHint(CharSequence hint) {
             mHint = hint;
         }

         @Override
         public CharSequence getText() {
             return mText;
         }

         @Override
         public int getTextSelectionStart() {
             return mTextSelectionStart;
         }

         @Override
         public int getTextSelectionEnd() {
             return mTextSelectionEnd;
         }

         @Override
         public CharSequence getHint() {
             return mHint;
         }
     }

     final static class ViewNodeTextImpl {
         final String mText;
         final int mTextSelectionStart;
         final int mTextSelectionEnd;
         final String mHint;

         ViewNodeTextImpl(ViewAssistDataImpl data) {
             mText = data.mText != null ? data.mText.toString() : null;
             mTextSelectionStart = data.mTextSelectionStart;
             mTextSelectionEnd = data.mTextSelectionEnd;
             mHint = data.mHint != null ? data.mHint.toString() : null;
         }

         ViewNodeTextImpl(Parcel in) {
             mText = in.readString();
             mTextSelectionStart = in.readInt();
             mTextSelectionEnd = in.readInt();
             mHint = in.readString();
         }

         void writeToParcel(Parcel out) {
             out.writeString(mText);
             out.writeInt(mTextSelectionStart);
             out.writeInt(mTextSelectionEnd);
             out.writeString(mHint);
         }
     }

     final static class ViewNodeImpl {
         final int mX;
         final int mY;
         final int mScrollX;
         final int mScrollY;
         final int mWidth;
         final int mHeight;

         static final int FLAGS_DISABLED = 0x00000001;
         static final int FLAGS_VISIBILITY_MASK = View.VISIBLE|View.INVISIBLE|View.GONE;
         static final int FLAGS_FOCUSABLE = 0x00000010;
         static final int FLAGS_FOCUSED = 0x00000020;
         static final int FLAGS_ACCESSIBILITY_FOCUSED = 0x04000000;
         static final int FLAGS_SELECTED = 0x00000040;
         static final int FLAGS_ACTIVATED = 0x40000000;
         static final int FLAGS_CHECKABLE = 0x00000100;
         static final int FLAGS_CHECKED = 0x00000200;
         static final int FLAGS_CLICKABLE = 0x00004000;
         static final int FLAGS_LONG_CLICKABLE = 0x00200000;

         final int mFlags;

         final String mClassName;
         final String mContentDescription;

         final ViewNodeTextImpl mText;
         final Bundle mExtras;

         final ViewNodeImpl[] mChildren;

         ViewNodeImpl(AssistData assistData, View view, int left, int top,
                 CharSequence contentDescription) {
             mX = left;
             mY = top;
             mScrollX = view.getScrollX();
             mScrollY = view.getScrollY();
             mWidth = view.getWidth();
             mHeight = view.getHeight();
             int flags = view.getVisibility();
             if (!view.isEnabled()) {
                 flags |= FLAGS_DISABLED;
             }
             if (!view.isClickable()) {
                 flags |= FLAGS_CLICKABLE;
             }
             if (!view.isFocusable()) {
                 flags |= FLAGS_FOCUSABLE;
             }
             if (!view.isFocused()) {
                 flags |= FLAGS_FOCUSED;
             }
             if (!view.isAccessibilityFocused()) {
                 flags |= FLAGS_ACCESSIBILITY_FOCUSED;
             }
             if (!view.isSelected()) {
                 flags |= FLAGS_SELECTED;
             }
             if (!view.isActivated()) {
                 flags |= FLAGS_ACTIVATED;
             }
             if (!view.isLongClickable()) {
                 flags |= FLAGS_LONG_CLICKABLE;
             }
             if (view instanceof Checkable) {
                 flags |= FLAGS_CHECKABLE;
                 if (((Checkable)view).isChecked()) {
                     flags |= FLAGS_CHECKED;
                 }
             }
             mFlags = flags;
             mClassName = view.getAccessibilityClassName().toString();
             mContentDescription = contentDescription != null ? contentDescription.toString() : null;
             final ViewAssistDataImpl viewData = assistData.mTmpViewAssistDataImpl;
             final Bundle extras = assistData.mTmpExtras;
             view.onProvideAssistData(viewData, extras);
             if (viewData.mText != null || viewData.mHint != null) {
                 mText = new ViewNodeTextImpl(viewData);
                 assistData.mTmpViewAssistDataImpl = new ViewAssistDataImpl();
             } else {
                 mText = null;
             }
             if (!extras.isEmpty()) {
                 mExtras = extras;
                 assistData.mTmpExtras = new Bundle();
             } else {
                 mExtras = null;
             }
             if (view instanceof ViewGroup) {
                 ViewGroup vg = (ViewGroup)view;
                 final int NCHILDREN = vg.getChildCount();
                 if (NCHILDREN > 0) {
                     mChildren = new ViewNodeImpl[NCHILDREN];
                     for (int i=0; i<NCHILDREN; i++) {
                         mChildren[i] = new ViewNodeImpl(assistData, vg.getChildAt(i));
                     }
                 } else {
                     mChildren = null;
                 }
             } else {
                 mChildren = null;
             }
         }

         ViewNodeImpl(AssistData assistData, View view) {
             this(assistData, view, view.getLeft(), view.getTop(), view.getContentDescription());
         }

         ViewNodeImpl(Parcel in) {
             mX = in.readInt();
             mY = in.readInt();
             mScrollX = in.readInt();
             mScrollY = in.readInt();
             mWidth = in.readInt();
             mHeight = in.readInt();
             mFlags = in.readInt();
             mClassName = in.readString();
             mContentDescription = in.readString();
             if (in.readInt() != 0) {
                 mText = new ViewNodeTextImpl(in);
             } else {
                 mText = null;
             }
             mExtras = in.readBundle();
             final int NCHILDREN = in.readInt();
             if (NCHILDREN > 0) {
                 mChildren = new ViewNodeImpl[NCHILDREN];
                 for (int i=0; i<NCHILDREN; i++) {
                     mChildren[i] = new ViewNodeImpl(in);
                 }
             } else {
                 mChildren = null;
             }
         }

         void writeToParcel(Parcel out) {
             out.writeInt(mX);
             out.writeInt(mY);
             out.writeInt(mScrollX);
             out.writeInt(mScrollY);
             out.writeInt(mWidth);
             out.writeInt(mHeight);
             out.writeInt(mFlags);
             out.writeString(mClassName);
             out.writeString(mContentDescription);
             if (mText != null) {
                 out.writeInt(1);
                 mText.writeToParcel(out);
             } else {
                 out.writeInt(0);
             }
             out.writeBundle(mExtras);
             if (mChildren != null) {
                 final int NCHILDREN = mChildren.length;
                 out.writeInt(NCHILDREN);
                 for (int i=0; i<NCHILDREN; i++) {
                     mChildren[i].writeToParcel(out);
                 }
             } else {
                 out.writeInt(0);
             }
         }
     }

     /**
      * Provides access to information about a single view in the assist data.
      */
     static public class ViewNode {
         ViewNodeImpl mImpl;

         public ViewNode() {
         }

         public int getLeft() {
             return mImpl.mX;
         }

         public int getTop() {
             return mImpl.mY;
         }

         public int getScrollX() {
             return mImpl.mScrollX;
         }

         public int getScrollY() {
             return mImpl.mScrollY;
         }

         public int getWidth() {
             return mImpl.mWidth;
         }

         public int getHeight() {
             return mImpl.mHeight;
         }

         public int getVisibility() {
             return mImpl.mFlags&ViewNodeImpl.FLAGS_VISIBILITY_MASK;
         }

         public boolean isEnabled() {
             return (mImpl.mFlags&ViewNodeImpl.FLAGS_DISABLED) == 0;
         }

         public boolean isClickable() {
             return (mImpl.mFlags&ViewNodeImpl.FLAGS_CLICKABLE) != 0;
         }

         public boolean isFocusable() {
             return (mImpl.mFlags&ViewNodeImpl.FLAGS_FOCUSABLE) != 0;
         }

         public boolean isFocused() {
             return (mImpl.mFlags&ViewNodeImpl.FLAGS_FOCUSED) != 0;
         }

         public boolean isAccessibilityFocused() {
             return (mImpl.mFlags&ViewNodeImpl.FLAGS_ACCESSIBILITY_FOCUSED) != 0;
         }

         public boolean isCheckable() {
             return (mImpl.mFlags&ViewNodeImpl.FLAGS_CHECKABLE) != 0;
         }

         public boolean isChecked() {
             return (mImpl.mFlags&ViewNodeImpl.FLAGS_CHECKED) != 0;
         }

         public boolean isSelected() {
             return (mImpl.mFlags&ViewNodeImpl.FLAGS_SELECTED) != 0;
         }

         public boolean isActivated() {
             return (mImpl.mFlags&ViewNodeImpl.FLAGS_ACTIVATED) != 0;
         }

         public boolean isLongClickable() {
             return (mImpl.mFlags&ViewNodeImpl.FLAGS_LONG_CLICKABLE) != 0;
         }

         public String getClassName() {
             return mImpl.mClassName;
         }

         public String getContentDescription() {
             return mImpl.mContentDescription;
         }

         public String getText() {
             return mImpl.mText != null ? mImpl.mText.mText : null;
         }

         public int getTextSelectionStart() {
             return mImpl.mText != null ? mImpl.mText.mTextSelectionStart : -1;
         }

         public int getTextSelectionEnd() {
             return mImpl.mText != null ? mImpl.mText.mTextSelectionEnd : -1;
         }

         public String getHint() {
             return mImpl.mText != null ? mImpl.mText.mHint : null;
         }

         public Bundle getExtras() {
             return mImpl.mExtras;
         }

         public int getChildCount() {
             return mImpl.mChildren != null ? mImpl.mChildren.length : 0;
         }

         public void getChildAt(int index, ViewNode outNode) {
             outNode.mImpl = mImpl.mChildren[index];
         }
     }

     AssistData(Activity activity) {
         mActivityComponent = activity.getComponentName();
         ArrayList<ViewRootImpl> views = WindowManagerGlobal.getInstance().getRootViews(
                 activity.getActivityToken());
         for (int i=0; i<views.size(); i++) {
             ViewRootImpl root = views.get(i);
             View view = root.getView();
             Rect rect = new Rect();
             view.getBoundsOnScreen(rect);
             CharSequence title = root.getTitle();
             mRootViews.add(new ViewNodeImpl(this, view, rect.left, rect.top,
                     title != null ? title : view.getContentDescription()));
         }
     }

     AssistData(Parcel in) {
         mActivityComponent = ComponentName.readFromParcel(in);
         final int N = in.readInt();
         for (int i=0; i<N; i++) {
             mRootViews.add(new ViewNodeImpl(in));
         }
         //dump();
     }

     /** @hide */
     public void dump() {
         Log.i(TAG, "Activity: " + mActivityComponent.flattenToShortString());
         ViewNode node = new ViewNode();
         final int N = getWindowCount();
         for (int i=0; i<N; i++) {
             Log.i(TAG, "Window #" + i + ":");
             getWindowAt(i, node);
             dump("  ", node);
         }
     }

     void dump(String prefix, ViewNode node) {
         Log.i(TAG, prefix + "View [" + node.getLeft() + "," + node.getTop()
                 + " " + node.getWidth() + "x" + node.getHeight() + "]" + " " + node.getClassName());
         int scrollX = node.getScrollX();
         int scrollY = node.getScrollY();
         if (scrollX != 0 || scrollY != 0) {
             Log.i(TAG, prefix + "  Scroll: " + scrollX + "," + scrollY);
         }
         String contentDescription = node.getContentDescription();
         if (contentDescription != null) {
             Log.i(TAG, prefix + "  Content description: " + contentDescription);
         }
         String text = node.getText();
         if (text != null) {
             Log.i(TAG, prefix + "  Text (sel " + node.getTextSelectionStart() + "-"
                     + node.getTextSelectionEnd() + "): " + text);
         }
         String hint = node.getHint();
         if (hint != null) {
             Log.i(TAG, prefix + "  Hint: " + hint);
         }
         Bundle extras = node.getExtras();
         if (extras != null) {
             Log.i(TAG, prefix + "  Extras: " + extras);
         }
         final int NCHILDREN = node.getChildCount();
         if (NCHILDREN > 0) {
             Log.i(TAG, prefix + "  Children:");
             String cprefix = prefix + "    ";
             ViewNode cnode = new ViewNode();
             for (int i=0; i<NCHILDREN; i++) {
                 node.getChildAt(i, cnode);
                 dump(cprefix, cnode);
             }
         }
     }

     /**
      * Retrieve the framework-generated AssistData that is stored within
      * the Bundle filled in by {@link Activity#onProvideAssistData}.
      */
     public static AssistData getAssistData(Bundle assistBundle) {
         return assistBundle.getParcelable(ASSIST_KEY);
     }

     public ComponentName getActivityComponent() {
         return mActivityComponent;
     }

     /**
      * Return the number of window contents that have been collected in this assist data.
      */
     public int getWindowCount() {
         return mRootViews.size();
     }

     /**
      * Return the root view for one of the windows in the assist data.
      * @param index Which window to retrieve, may be 0 to {@link #getWindowCount()}-1.
      * @param outNode Node in which to place the window's root view.
      */
     public void getWindowAt(int index, ViewNode outNode) {
         outNode.mImpl = mRootViews.get(index);
     }

     public int describeContents() {
         return 0;
     }

     public void writeToParcel(Parcel out, int flags) {
         int start = out.dataPosition();
         ComponentName.writeToParcel(mActivityComponent, out);
         final int N = mRootViews.size();
         out.writeInt(N);
         for (int i=0; i<N; i++) {
             mRootViews.get(i).writeToParcel(out);
         }
         Log.i(TAG, "Flattened assist data: " + (out.dataPosition() - start) + " bytes");
     }

     public static final Parcelable.Creator<AssistData> CREATOR
             = new Parcelable.Creator<AssistData>() {
         public AssistData createFromParcel(Parcel in) {
             return new AssistData(in);
         }

         public AssistData[] newArray(int size) {
             return new AssistData[size];
         }
     };
 }
	/*
	* Copyright (C) 2015 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.app;

	import android.content.ComponentName;
	import android.graphics.Rect;
	import android.os.Bundle;
	import android.os.Parcel;
	import android.os.Parcelable;
	import android.util.Log;
	import android.view.View;
	import android.view.ViewAssistData;
	import android.view.ViewGroup;
	import android.view.ViewRootImpl;
	import android.view.WindowManagerGlobal;
	import android.widget.Checkable;

	import java.util.ArrayList;

	/**
	* Assist data automatically created by the platform's implementation
	* of {@link Activity#onProvideAssistData}. Retrieve it from the assist
	* data with {@link #getAssistData(android.os.Bundle)}.
	*/
	final public class AssistData implements Parcelable {
	static final String TAG = "AssistData";

	/**
	* Key name this data structure is stored in the Bundle generated by
	* {@link Activity#onProvideAssistData}.
	*/
	public static final String ASSIST_KEY = "android:assist";

	final ComponentName mActivityComponent;

	final ArrayList<ViewNodeImpl> mRootViews = new ArrayList<>();

	ViewAssistDataImpl mTmpViewAssistDataImpl = new ViewAssistDataImpl();
	Bundle mTmpExtras = new Bundle();

	final static class ViewAssistDataImpl extends ViewAssistData {
	CharSequence mText;
	int mTextSelectionStart = -1;
	int mTextSelectionEnd = -1;
	CharSequence mHint;

	@Override
	public void setText(CharSequence text) {
	mText = text;
	mTextSelectionStart = mTextSelectionEnd = -1;
	}

	@Override
	public void setText(CharSequence text, int selectionStart, int selectionEnd) {
	mText = text;
	mTextSelectionStart = selectionStart;
	mTextSelectionEnd = selectionEnd;
	}

	@Override
	public void setHint(CharSequence hint) {
	mHint = hint;
	}

	@Override
	public CharSequence getText() {
	return mText;
	}

	@Override
	public int getTextSelectionStart() {
	return mTextSelectionStart;
	}

	@Override
	public int getTextSelectionEnd() {
	return mTextSelectionEnd;
	}

	@Override
	public CharSequence getHint() {
	return mHint;
	}
	}

	final static class ViewNodeTextImpl {
	final String mText;
	final int mTextSelectionStart;
	final int mTextSelectionEnd;
	final String mHint;

	ViewNodeTextImpl(ViewAssistDataImpl data) {
	mText = data.mText != null ? data.mText.toString() : null;
	mTextSelectionStart = data.mTextSelectionStart;
	mTextSelectionEnd = data.mTextSelectionEnd;
	mHint = data.mHint != null ? data.mHint.toString() : null;
	}

	ViewNodeTextImpl(Parcel in) {
	mText = in.readString();
	mTextSelectionStart = in.readInt();
	mTextSelectionEnd = in.readInt();
	mHint = in.readString();
	}

	void writeToParcel(Parcel out) {
	out.writeString(mText);
	out.writeInt(mTextSelectionStart);
	out.writeInt(mTextSelectionEnd);
	out.writeString(mHint);
	}
	}

	final static class ViewNodeImpl {
	final int mX;
	final int mY;
	final int mScrollX;
	final int mScrollY;
	final int mWidth;
	final int mHeight;

	static final int FLAGS_DISABLED = 0x00000001;
	static final int FLAGS_VISIBILITY_MASK = View.VISIBLE\|View.INVISIBLE\|View.GONE;
	static final int FLAGS_FOCUSABLE = 0x00000010;
	static final int FLAGS_FOCUSED = 0x00000020;
	static final int FLAGS_ACCESSIBILITY_FOCUSED = 0x04000000;
	static final int FLAGS_SELECTED = 0x00000040;
	static final int FLAGS_ACTIVATED = 0x40000000;
	static final int FLAGS_CHECKABLE = 0x00000100;
	static final int FLAGS_CHECKED = 0x00000200;
	static final int FLAGS_CLICKABLE = 0x00004000;
	static final int FLAGS_LONG_CLICKABLE = 0x00200000;

	final int mFlags;

	final String mClassName;
	final String mContentDescription;

	final ViewNodeTextImpl mText;
	final Bundle mExtras;

	final ViewNodeImpl[] mChildren;

	ViewNodeImpl(AssistData assistData, View view, int left, int top,
	CharSequence contentDescription) {
	mX = left;
	mY = top;
	mScrollX = view.getScrollX();
	mScrollY = view.getScrollY();
	mWidth = view.getWidth();
	mHeight = view.getHeight();
	int flags = view.getVisibility();
	if (!view.isEnabled()) {
	flags \|= FLAGS_DISABLED;
	}
	if (!view.isClickable()) {
	flags \|= FLAGS_CLICKABLE;
	}
	if (!view.isFocusable()) {
	flags \|= FLAGS_FOCUSABLE;
	}
	if (!view.isFocused()) {
	flags \|= FLAGS_FOCUSED;
	}
	if (!view.isAccessibilityFocused()) {
	flags \|= FLAGS_ACCESSIBILITY_FOCUSED;
	}
	if (!view.isSelected()) {
	flags \|= FLAGS_SELECTED;
	}
	if (!view.isActivated()) {
	flags \|= FLAGS_ACTIVATED;
	}
	if (!view.isLongClickable()) {
	flags \|= FLAGS_LONG_CLICKABLE;
	}
	if (view instanceof Checkable) {
	flags \|= FLAGS_CHECKABLE;
	if (((Checkable)view).isChecked()) {
	flags \|= FLAGS_CHECKED;
	}
	}
	mFlags = flags;
	mClassName = view.getAccessibilityClassName().toString();
	mContentDescription = contentDescription != null ? contentDescription.toString() : null;
	final ViewAssistDataImpl viewData = assistData.mTmpViewAssistDataImpl;
	final Bundle extras = assistData.mTmpExtras;
	view.onProvideAssistData(viewData, extras);
	if (viewData.mText != null \|\| viewData.mHint != null) {
	mText = new ViewNodeTextImpl(viewData);
	assistData.mTmpViewAssistDataImpl = new ViewAssistDataImpl();
	} else {
	mText = null;
	}
	if (!extras.isEmpty()) {
	mExtras = extras;
	assistData.mTmpExtras = new Bundle();
	} else {
	mExtras = null;
	}
	if (view instanceof ViewGroup) {
	ViewGroup vg = (ViewGroup)view;
	final int NCHILDREN = vg.getChildCount();
	if (NCHILDREN > 0) {
	mChildren = new ViewNodeImpl[NCHILDREN];
	for (int i=0; i<NCHILDREN; i++) {
	mChildren[i] = new ViewNodeImpl(assistData, vg.getChildAt(i));
	}
	} else {
	mChildren = null;
	}
	} else {
	mChildren = null;
	}
	}

	ViewNodeImpl(AssistData assistData, View view) {
	this(assistData, view, view.getLeft(), view.getTop(), view.getContentDescription());
	}

	ViewNodeImpl(Parcel in) {
	mX = in.readInt();
	mY = in.readInt();
	mScrollX = in.readInt();
	mScrollY = in.readInt();
	mWidth = in.readInt();
	mHeight = in.readInt();
	mFlags = in.readInt();
	mClassName = in.readString();
	mContentDescription = in.readString();
	if (in.readInt() != 0) {
	mText = new ViewNodeTextImpl(in);
	} else {
	mText = null;
	}
	mExtras = in.readBundle();
	final int NCHILDREN = in.readInt();
	if (NCHILDREN > 0) {
	mChildren = new ViewNodeImpl[NCHILDREN];
	for (int i=0; i<NCHILDREN; i++) {
	mChildren[i] = new ViewNodeImpl(in);
	}
	} else {
	mChildren = null;
	}
	}

	void writeToParcel(Parcel out) {
	out.writeInt(mX);
	out.writeInt(mY);
	out.writeInt(mScrollX);
	out.writeInt(mScrollY);
	out.writeInt(mWidth);
	out.writeInt(mHeight);
	out.writeInt(mFlags);
	out.writeString(mClassName);
	out.writeString(mContentDescription);
	if (mText != null) {
	out.writeInt(1);
	mText.writeToParcel(out);
	} else {
	out.writeInt(0);
	}
	out.writeBundle(mExtras);
	if (mChildren != null) {
	final int NCHILDREN = mChildren.length;
	out.writeInt(NCHILDREN);
	for (int i=0; i<NCHILDREN; i++) {
	mChildren[i].writeToParcel(out);
	}
	} else {
	out.writeInt(0);
	}
	}
	}

	/**
	* Provides access to information about a single view in the assist data.
	*/
	static public class ViewNode {
	ViewNodeImpl mImpl;

	public ViewNode() {
	}

	public int getLeft() {
	return mImpl.mX;
	}

	public int getTop() {
	return mImpl.mY;
	}

	public int getScrollX() {
	return mImpl.mScrollX;
	}

	public int getScrollY() {
	return mImpl.mScrollY;
	}

	public int getWidth() {
	return mImpl.mWidth;
	}

	public int getHeight() {
	return mImpl.mHeight;
	}

	public int getVisibility() {
	return mImpl.mFlags&ViewNodeImpl.FLAGS_VISIBILITY_MASK;
	}

	public boolean isEnabled() {
	return (mImpl.mFlags&ViewNodeImpl.FLAGS_DISABLED) == 0;
	}

	public boolean isClickable() {
	return (mImpl.mFlags&ViewNodeImpl.FLAGS_CLICKABLE) != 0;
	}

	public boolean isFocusable() {
	return (mImpl.mFlags&ViewNodeImpl.FLAGS_FOCUSABLE) != 0;
	}

	public boolean isFocused() {
	return (mImpl.mFlags&ViewNodeImpl.FLAGS_FOCUSED) != 0;
	}

	public boolean isAccessibilityFocused() {
	return (mImpl.mFlags&ViewNodeImpl.FLAGS_ACCESSIBILITY_FOCUSED) != 0;
	}

	public boolean isCheckable() {
	return (mImpl.mFlags&ViewNodeImpl.FLAGS_CHECKABLE) != 0;
	}

	public boolean isChecked() {
	return (mImpl.mFlags&ViewNodeImpl.FLAGS_CHECKED) != 0;
	}

	public boolean isSelected() {
	return (mImpl.mFlags&ViewNodeImpl.FLAGS_SELECTED) != 0;
	}

	public boolean isActivated() {
	return (mImpl.mFlags&ViewNodeImpl.FLAGS_ACTIVATED) != 0;
	}

	public boolean isLongClickable() {
	return (mImpl.mFlags&ViewNodeImpl.FLAGS_LONG_CLICKABLE) != 0;
	}

	public String getClassName() {
	return mImpl.mClassName;
	}

	public String getContentDescription() {
	return mImpl.mContentDescription;
	}

	public String getText() {
	return mImpl.mText != null ? mImpl.mText.mText : null;
	}

	public int getTextSelectionStart() {
	return mImpl.mText != null ? mImpl.mText.mTextSelectionStart : -1;
	}

	public int getTextSelectionEnd() {
	return mImpl.mText != null ? mImpl.mText.mTextSelectionEnd : -1;
	}

	public String getHint() {
	return mImpl.mText != null ? mImpl.mText.mHint : null;
	}

	public Bundle getExtras() {
	return mImpl.mExtras;
	}

	public int getChildCount() {
	return mImpl.mChildren != null ? mImpl.mChildren.length : 0;
	}

	public void getChildAt(int index, ViewNode outNode) {
	outNode.mImpl = mImpl.mChildren[index];
	}
	}

	AssistData(Activity activity) {
	mActivityComponent = activity.getComponentName();
	ArrayList<ViewRootImpl> views = WindowManagerGlobal.getInstance().getRootViews(
	activity.getActivityToken());
	for (int i=0; i<views.size(); i++) {
	ViewRootImpl root = views.get(i);
	View view = root.getView();
	Rect rect = new Rect();
	view.getBoundsOnScreen(rect);
	CharSequence title = root.getTitle();
	mRootViews.add(new ViewNodeImpl(this, view, rect.left, rect.top,
	title != null ? title : view.getContentDescription()));
	}
	}

	AssistData(Parcel in) {
	mActivityComponent = ComponentName.readFromParcel(in);
	final int N = in.readInt();
	for (int i=0; i<N; i++) {
	mRootViews.add(new ViewNodeImpl(in));
	}
	//dump();
	}

	/** @hide */
	public void dump() {
	Log.i(TAG, "Activity: " + mActivityComponent.flattenToShortString());
	ViewNode node = new ViewNode();
	final int N = getWindowCount();
	for (int i=0; i<N; i++) {
	Log.i(TAG, "Window #" + i + ":");
	getWindowAt(i, node);
	dump(" ", node);
	}
	}

	void dump(String prefix, ViewNode node) {
	Log.i(TAG, prefix + "View [" + node.getLeft() + "," + node.getTop()
	+ " " + node.getWidth() + "x" + node.getHeight() + "]" + " " + node.getClassName());
	int scrollX = node.getScrollX();
	int scrollY = node.getScrollY();
	if (scrollX != 0 \|\| scrollY != 0) {
	Log.i(TAG, prefix + " Scroll: " + scrollX + "," + scrollY);
	}
	String contentDescription = node.getContentDescription();
	if (contentDescription != null) {
	Log.i(TAG, prefix + " Content description: " + contentDescription);
	}
	String text = node.getText();
	if (text != null) {
	Log.i(TAG, prefix + " Text (sel " + node.getTextSelectionStart() + "-"
	+ node.getTextSelectionEnd() + "): " + text);
	}
	String hint = node.getHint();
	if (hint != null) {
	Log.i(TAG, prefix + " Hint: " + hint);
	}
	Bundle extras = node.getExtras();
	if (extras != null) {
	Log.i(TAG, prefix + " Extras: " + extras);
	}
	final int NCHILDREN = node.getChildCount();
	if (NCHILDREN > 0) {
	Log.i(TAG, prefix + " Children:");
	String cprefix = prefix + " ";
	ViewNode cnode = new ViewNode();
	for (int i=0; i<NCHILDREN; i++) {
	node.getChildAt(i, cnode);
	dump(cprefix, cnode);
	}
	}
	}

	/**
	* Retrieve the framework-generated AssistData that is stored within
	* the Bundle filled in by {@link Activity#onProvideAssistData}.
	*/
	public static AssistData getAssistData(Bundle assistBundle) {
	return assistBundle.getParcelable(ASSIST_KEY);
	}

	public ComponentName getActivityComponent() {
	return mActivityComponent;
	}

	/**
	* Return the number of window contents that have been collected in this assist data.
	*/
	public int getWindowCount() {
	return mRootViews.size();
	}

	/**
	* Return the root view for one of the windows in the assist data.
	* @param index Which window to retrieve, may be 0 to {@link #getWindowCount()}-1.
	* @param outNode Node in which to place the window's root view.
	*/
	public void getWindowAt(int index, ViewNode outNode) {
	outNode.mImpl = mRootViews.get(index);
	}

	public int describeContents() {
	return 0;
	}

	public void writeToParcel(Parcel out, int flags) {
	int start = out.dataPosition();
	ComponentName.writeToParcel(mActivityComponent, out);
	final int N = mRootViews.size();
	out.writeInt(N);
	for (int i=0; i<N; i++) {
	mRootViews.get(i).writeToParcel(out);
	}
	Log.i(TAG, "Flattened assist data: " + (out.dataPosition() - start) + " bytes");
	}

	public static final Parcelable.Creator<AssistData> CREATOR
	= new Parcelable.Creator<AssistData>() {
	public AssistData createFromParcel(Parcel in) {
	return new AssistData(in);
	}

	public AssistData[] newArray(int size) {
	return new AssistData[size];
	}
	};
	}