Expand WebKitHitTest and do some preliminary caching

Change-Id: Id9e9cc11f1482f434133e70b14970d7248a39008

Author: jreck

core/java/android/webkit/WebView.java

@@ -611,6 +611,7 @@ public void onTrimMemory(int level) {
     private boolean mIsPaused;
 
     private HitTestResult mInitialHitTestResult;
+    private WebKitHitTest mFocusedNode;
 
     /**
      * Customizable constant
@@ -1072,6 +1073,15 @@ public String getExtra() {
         }
     }
 
+    /**
+     * Refer to {@link WebView#requestFocusNodeHref(Message)} for more information
+     */
+    static class FocusNodeHref {
+        static final String TITLE = "title";
+        static final String URL = "url";
+        static final String SRC = "src";
+    }
+
     /**
      * Construct a new WebView with a Context object.
      * @param context A Context object used to access application assets.
@@ -2704,6 +2714,14 @@ public void requestFocusNodeHref(Message hrefMsg) {
         }
         int contentX = viewToContentX(mLastTouchX + mScrollX);
         int contentY = viewToContentY(mLastTouchY + mScrollY);
+        if (mFocusedNode != null && mFocusedNode.mHitTestX == contentX
+                && mFocusedNode.mHitTestY == contentY) {
+            hrefMsg.getData().putString(FocusNodeHref.URL, mFocusedNode.mLinkUrl);
+            hrefMsg.getData().putString(FocusNodeHref.TITLE, mFocusedNode.mAnchorText);
+            hrefMsg.getData().putString(FocusNodeHref.SRC, mFocusedNode.mImageUrl);
+            hrefMsg.sendToTarget();
+            return;
+        }
         if (nativeHasCursorNode()) {
             Rect cursorBounds = nativeGetCursorRingBounds();
             if (!cursorBounds.contains(contentX, contentY)) {
@@ -8837,13 +8855,25 @@ public void handleMessage(Message msg) {
 
                 case HIT_TEST_RESULT:
                     WebKitHitTest hit = (WebKitHitTest) msg.obj;
+                    mFocusedNode = hit;
                     setTouchHighlightRects(hit != null ? hit.mTouchRects : null);
                     if (hit == null) {
                         mInitialHitTestResult = null;
                     } else {
                         mInitialHitTestResult = new HitTestResult();
-                        mInitialHitTestResult.mType = hit.mType;
-                        mInitialHitTestResult.mExtra = hit.mExtra;
+                        if (hit.mLinkUrl != null) {
+                            mInitialHitTestResult.mType = HitTestResult.SRC_ANCHOR_TYPE;
+                            mInitialHitTestResult.mExtra = hit.mLinkUrl;
+                            if (hit.mImageUrl != null) {
+                                mInitialHitTestResult.mType = HitTestResult.SRC_IMAGE_ANCHOR_TYPE;
+                                mInitialHitTestResult.mExtra = hit.mImageUrl;
+                            }
+                        } else if (hit.mImageUrl != null) {
+                            mInitialHitTestResult.mType = HitTestResult.IMAGE_TYPE;
+                            mInitialHitTestResult.mExtra = hit.mImageUrl;
+                        } else if (hit.mEditable) {
+                            mInitialHitTestResult.mType = HitTestResult.EDIT_TEXT_TYPE;
+                        }
                     }
                     break;
 
@@ -8882,8 +8912,10 @@ public void handleMessage(Message msg) {
     }
 
     private void setTouchHighlightRects(Rect[] rects) {
-        invalidate(mTouchHighlightRegion.getBounds());
-        mTouchHighlightRegion.setEmpty();
+        if (!mTouchHighlightRegion.isEmpty()) {
+            invalidate(mTouchHighlightRegion.getBounds());
+            mTouchHighlightRegion.setEmpty();
+        }
         if (rects != null) {
             for (Rect rect : rects) {
                 Rect viewRect = contentToViewRect(rect);

core/java/android/webkit/WebViewCore.java

@@ -26,6 +26,7 @@
 import android.media.MediaFile;
 import android.net.ProxyProperties;
 import android.net.Uri;
+import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
 import android.os.Message;
@@ -37,6 +38,7 @@
 import android.view.MotionEvent;
 import android.view.SurfaceView;
 import android.view.View;
+import android.webkit.WebView.FocusNodeHref;
 
 import junit.framework.Assert;
 
@@ -861,9 +863,19 @@ static class TouchHighlightData {
     }
 
     static class WebKitHitTest {
-        int mType;
-        String mExtra;
+        String mLinkUrl;
+        String mAnchorText;
+        String mImageUrl;
+        String mAltDisplayString;
+        String mTitle;
         Rect[] mTouchRects;
+        boolean mEditable;
+
+        // These are the input values that produced this hit test
+        int mHitTestX;
+        int mHitTestY;
+        int mHitTestSlop;
+        boolean mHitTestMovedMouse;
     }
 
     static class AutoFillData {
@@ -1512,13 +1524,12 @@ public void handleMessage(Message msg) {
                             break;
 
                         case REQUEST_CURSOR_HREF: {
+                            WebKitHitTest hit = performHitTest(msg.arg1, msg.arg2, 1, false);
                             Message hrefMsg = (Message) msg.obj;
-                            hrefMsg.getData().putString("url",
-                                    nativeRetrieveHref(mNativeClass, msg.arg1, msg.arg2));
-                            hrefMsg.getData().putString("title",
-                                    nativeRetrieveAnchorText(mNativeClass, msg.arg1, msg.arg2));
-                            hrefMsg.getData().putString("src",
-                                    nativeRetrieveImageSource(mNativeClass, msg.arg1, msg.arg2));
+                            Bundle data = hrefMsg.getData();
+                            data.putString(FocusNodeHref.URL,hit.mLinkUrl);
+                            data.putString(FocusNodeHref.TITLE, hit.mAnchorText);
+                            data.putString(FocusNodeHref.SRC, hit.mImageUrl);
                             hrefMsg.sendToTarget();
                             break;
                         }
@@ -1683,8 +1694,7 @@ public void handleMessage(Message msg) {
                                 nativeScrollLayer(mNativeClass,
                                         d.mNativeLayer, d.mNativeLayerRect);
                             }
-                            WebKitHitTest hit = nativeHitTest(mNativeClass,
-                                    d.mX, d.mY, d.mSlop);
+                            WebKitHitTest hit = performHitTest(d.mX, d.mY, d.mSlop, true);
                             mWebView.mPrivateHandler.obtainMessage(
                                     WebView.HIT_TEST_RESULT, hit)
                                     .sendToTarget();
@@ -1883,6 +1893,15 @@ void destroy() {
     // WebViewCore private methods
     //-------------------------------------------------------------------------
 
+    private WebKitHitTest performHitTest(int x, int y, int slop, boolean moveMouse) {
+        WebKitHitTest hit = nativeHitTest(mNativeClass, x, y, slop, moveMouse);
+        hit.mHitTestX = x;
+        hit.mHitTestY = y;
+        hit.mHitTestSlop = slop;
+        hit.mHitTestMovedMouse = moveMouse;
+        return hit;
+    }
+
     private void clearCache(boolean includeDiskFiles) {
         mBrowserFrame.clearCache();
         if (includeDiskFiles) {
@@ -2933,7 +2952,8 @@ protected DeviceOrientationService getDeviceOrientationService() {
     private native boolean nativeValidNodeAndBounds(int nativeClass, int frame,
             int node, Rect bounds);
 
-    private native WebKitHitTest nativeHitTest(int nativeClass, int x, int y, int slop);
+    private native WebKitHitTest nativeHitTest(int nativeClass, int x, int y,
+            int slop, boolean moveMouse);
 
     private native void nativeAutoFillForm(int nativeClass, int queryId);
     private native void nativeScrollLayer(int nativeClass, int layer, Rect rect);