Show WebView layers in hierarchyviewer (926cf566) · Commits · e / os / android_frameworks_base

core/java/android/view/ViewDebug.java

+39 −0

Original line number	Diff line number	Diff line
		@@ -255,6 +255,35 @@ public class ViewDebug {
		boolean retrieveReturn() default false;
		}

		/**
		* Allows a View to inject custom children into HierarchyViewer. For example,
		* WebView uses this to add its internal layer tree as a child to itself
		* @hide
		*/
		public interface HierarchyHandler {
		/**
		* Dumps custom children to hierarchy viewer.
		* See {@link ViewDebug#dumpViewWithProperties(Context, View, BufferedWriter, int)}
		* for the format
		*
		* An empty implementation should simply do nothing
		*
		* @param out The output writer
		* @param level The indentation level
		*/
		public void dumpViewHierarchyWithProperties(BufferedWriter out, int level);

		/**
		* Returns a View to enable grabbing screenshots from custom children
		* returned in dumpViewHierarchyWithProperties.
		*
		* @param className The className of the view to find
		* @param hashCode The hashCode of the view to find
		* @return the View to capture from, or null if not found
		*/
		public View findHierarchyView(String className, int hashCode);
		}

		private static HashMap<Class<?>, Method[]> mCapturedViewMethodsForClasses = null;
		private static HashMap<Class<?>, Field[]> mCapturedViewFieldsForClasses = null;

		@@ -759,6 +788,13 @@ public class ViewDebug {
		} else if (isRequestedView(view, className, hashCode)) {
		return view;
		}
		if (view instanceof HierarchyHandler) {
		final View found = ((HierarchyHandler)view)
		.findHierarchyView(className, hashCode);
		if (found != null) {
		return found;
		}
		}
		}

		return null;
		@@ -783,6 +819,9 @@ public class ViewDebug {
		dumpViewWithProperties(context, view, out, level + 1);
		}
		}
		if (group instanceof HierarchyHandler) {
		((HierarchyHandler)group).dumpViewHierarchyWithProperties(out, level + 1);
		}
		}

		private static boolean dumpViewWithProperties(Context context, View view,

core/java/android/webkit/ViewStateSerializer.java

+9 −1

Original line number	Diff line number	Diff line
		@@ -16,7 +16,6 @@
		package android.webkit;

		import android.graphics.Point;
		import android.graphics.Region;
		import android.webkit.WebViewCore.DrawData;

		import java.io.DataInputStream;
		@@ -68,6 +67,15 @@ class ViewStateSerializer {
		return draw;
		}

		public static void dumpLayerHierarchy(int baseLayer, OutputStream out, int level) {
		nativeDumpLayerHierarchy(baseLayer, level, out,
		new byte[WORKING_STREAM_STORAGE]);
		}


		private static native void nativeDumpLayerHierarchy(int baseLayer, int level,
		OutputStream out, byte[] storage);

		private static native boolean nativeSerializeViewState(int baseLayer,
		OutputStream stream, byte[] storage);

core/java/android/webkit/WebView.java

+27 −2

Original line number	Diff line number	Diff line
		@@ -35,8 +35,8 @@ import android.util.Log;
		import android.view.KeyEvent;
		import android.view.MotionEvent;
		import android.view.View;
		import android.view.ViewDebug;
		import android.view.ViewGroup;
		import android.view.ViewGroup.LayoutParams;
		import android.view.ViewTreeObserver;
		import android.view.accessibility.AccessibilityEvent;
		import android.view.accessibility.AccessibilityNodeInfo;
		@@ -44,6 +44,7 @@ import android.view.inputmethod.EditorInfo;
		import android.view.inputmethod.InputConnection;
		import android.widget.AbsoluteLayout;

		import java.io.BufferedWriter;
		import java.io.File;
		import java.util.Map;

		@@ -263,7 +264,7 @@ import java.util.Map;
		@Widget
		public class WebView extends AbsoluteLayout
		implements ViewTreeObserver.OnGlobalFocusChangeListener,
		ViewGroup.OnHierarchyChangeListener {
		ViewGroup.OnHierarchyChangeListener, ViewDebug.HierarchyHandler {

		private static final String LOGTAG = "webview_proxy";

		@@ -1004,6 +1005,7 @@ public class WebView extends AbsoluteLayout
		*
		* @return the current scale
		*/
		@ViewDebug.ExportedProperty(category = "webview")
		public float getScale() {
		checkThread();
		return mProvider.getScale();
		@@ -1094,6 +1096,7 @@ public class WebView extends AbsoluteLayout
		*
		* @return the URL for the current page
		*/
		@ViewDebug.ExportedProperty(category = "webview")
		public String getUrl() {
		checkThread();
		return mProvider.getUrl();
		@@ -1108,6 +1111,7 @@ public class WebView extends AbsoluteLayout
		*
		* @return the URL that was originally requested for the current page
		*/
		@ViewDebug.ExportedProperty(category = "webview")
		public String getOriginalUrl() {
		checkThread();
		return mProvider.getOriginalUrl();
		@@ -1119,6 +1123,7 @@ public class WebView extends AbsoluteLayout
		*
		* @return the title for the current page
		*/
		@ViewDebug.ExportedProperty(category = "webview")
		public String getTitle() {
		checkThread();
		return mProvider.getTitle();
		@@ -1161,6 +1166,7 @@ public class WebView extends AbsoluteLayout
		*
		* @return the height of the HTML content
		*/
		@ViewDebug.ExportedProperty(category = "webview")
		public int getContentHeight() {
		checkThread();
		return mProvider.getContentHeight();
		@@ -1172,6 +1178,7 @@ public class WebView extends AbsoluteLayout
		* @return the width of the HTML content
		* @hide
		*/
		@ViewDebug.ExportedProperty(category = "webview")
		public int getContentWidth() {
		return mProvider.getContentWidth();
		}
		@@ -1652,6 +1659,24 @@ public class WebView extends AbsoluteLayout
		mProvider.debugDump();
		}

		/**
		* See {@link ViewDebug.HierarchyHandler#dumpViewHierarchyWithProperties(String, int)}
		* @hide
		*/
		@Override
		public void dumpViewHierarchyWithProperties(BufferedWriter out, int level) {
		mProvider.dumpViewHierarchyWithProperties(out, level);
		}

		/**
		* See {@link ViewDebug.HierarchyHandler#findHierarchyView(String, int)}
		* @hide
		*/
		@Override
		public View findHierarchyView(String className, int hashCode) {
		return mProvider.findHierarchyView(className, hashCode);
		}

		//-------------------------------------------------------------------------
		// Interface for WebView providers
		//-------------------------------------------------------------------------

core/java/android/webkit/WebViewClassic.java

+53 −0

Original line number	Diff line number	Diff line
		@@ -117,6 +117,8 @@ import android.widget.Toast;

		import junit.framework.Assert;

		import java.io.BufferedWriter;
		import java.io.ByteArrayOutputStream;
		import java.io.File;
		import java.io.FileInputStream;
		import java.io.FileNotFoundException;
		@@ -132,6 +134,7 @@ import java.util.List;
		import java.util.Map;
		import java.util.Set;
		import java.util.Vector;
		import java.util.concurrent.CountDownLatch;
		import java.util.regex.Matcher;
		import java.util.regex.Pattern;

		@@ -8594,6 +8597,54 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc
		WebViewCore.setShouldMonitorWebCoreThread();
		}

		@Override
		public void dumpViewHierarchyWithProperties(BufferedWriter out, int level) {
		int layer = getBaseLayer();
		if (layer != 0) {
		try {
		ByteArrayOutputStream stream = new ByteArrayOutputStream();
		ViewStateSerializer.dumpLayerHierarchy(layer, stream, level);
		stream.close();
		byte[] buf = stream.toByteArray();
		out.write(new String(buf, "ascii"));
		} catch (IOException e) {}
		}
		}

		@Override
		public View findHierarchyView(String className, int hashCode) {
		if (mNativeClass == 0) return null;
		Picture pic = new Picture();
		if (!nativeDumpLayerContentToPicture(mNativeClass, className, hashCode, pic)) {
		return null;
		}
		return new PictureWrapperView(getContext(), pic, mWebView);
		}

		private static class PictureWrapperView extends View {
		Picture mPicture;
		WebView mWebView;

		public PictureWrapperView(Context context, Picture picture, WebView parent) {
		super(context);
		mPicture = picture;
		mWebView = parent;
		setWillNotDraw(false);
		setRight(mPicture.getWidth());
		setBottom(mPicture.getHeight());
		}

		@Override
		protected void onDraw(Canvas canvas) {
		canvas.drawPicture(mPicture);
		}

		@Override
		public boolean post(Runnable action) {
		return mWebView.post(action);
		}
		}

		private native void nativeCreate(int ptr, String drawableDir, boolean isHighEndGfx);
		private native void nativeDebugDump();
		private static native void nativeDestroy(int ptr);
		@@ -8614,6 +8665,8 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc
		int scrollingLayer);
		private native int nativeGetBaseLayer(int nativeInstance);
		private native void nativeCopyBaseContentToPicture(Picture pict);
		private native boolean nativeDumpLayerContentToPicture(int nativeInstance,
		String className, int layerId, Picture pict);
		private native boolean nativeHasContent();
		private native void nativeStopGL(int ptr);
		private native void nativeDiscardAllTextures();

core/java/android/webkit/WebViewProvider.java

+5 −0

Original line number	Diff line number	Diff line
		@@ -37,6 +37,7 @@ import android.view.inputmethod.InputConnection;
		import android.webkit.WebView.HitTestResult;
		import android.webkit.WebView.PictureListener;

		import java.io.BufferedWriter;
		import java.io.File;
		import java.util.Map;

		@@ -238,6 +239,10 @@ public interface WebViewProvider {

		public void debugDump();

		public void dumpViewHierarchyWithProperties(BufferedWriter out, int level);

		public View findHierarchyView(String className, int hashCode);

		//-------------------------------------------------------------------------
		// Provider glue methods
		//-------------------------------------------------------------------------