Fix scrolling behavior for text input and textarea. (c6c83ce4) · Commits · e / os / android_frameworks_base

core/java/android/webkit/WebViewClassic.java

+9 −8

Original line number	Diff line number	Diff line
		@@ -6147,18 +6147,19 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc
		long timeSinceLastUpdate = currentTime - mLastEditScroll;
		int deltaX = getTextScrollDelta(scrollSpeedX, timeSinceLastUpdate);
		int deltaY = getTextScrollDelta(scrollSpeedY, timeSinceLastUpdate);
		mLastEditScroll = currentTime;
		if (deltaX == 0 && deltaY == 0) {
		// By probability no text scroll this time. Try again later.
		mPrivateHandler.sendEmptyMessageDelayed(SCROLL_EDIT_TEXT,
		TEXT_SCROLL_FIRST_SCROLL_MS);
		} else {
		int scrollX = getTextScrollX() + deltaX;
		scrollX = Math.min(getMaxTextScrollX(), scrollX);
		scrollX = Math.max(0, scrollX);
		int scrollY = getTextScrollY() + deltaY;
		scrollY = Math.min(getMaxTextScrollY(), scrollY);
		scrollY = Math.max(0, scrollY);

		mLastEditScroll = currentTime;
		if (scrollX == getTextScrollX() && scrollY == getTextScrollY()) {
		// By probability no text scroll this time. Try again later.
		mPrivateHandler.sendEmptyMessageDelayed(SCROLL_EDIT_TEXT,
		TEXT_SCROLL_FIRST_SCROLL_MS);
		} else {
		scrollEditText(scrollX, scrollY);
		int selectionX = getSelectionCoordinate(x,
		mEditTextContentBounds.left, mEditTextContentBounds.right);
		@@ -7429,7 +7430,7 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc
		mEditTextLayerId = initData.mNodeLayerId;
		nativeMapLayerRect(mNativeClass, mEditTextLayerId,
		mEditTextContentBounds);
		mEditTextContent.set(initData.mContentRect);
		mEditTextContent.set(initData.mClientRect);
		relocateAutoCompletePopup();
		}
		break;

core/java/android/webkit/WebViewCore.java

+3 −8

Original line number	Diff line number	Diff line
		@@ -962,7 +962,7 @@ public final class WebViewCore {
		public int mMaxLength;
		public Rect mContentBounds;
		public int mNodeLayerId;
		public Rect mContentRect;
		public Rect mClientRect;
		}

		// mAction of TouchEventData can be MotionEvent.getAction() which uses the
		@@ -1309,13 +1309,8 @@ public final class WebViewCore {
		} else {
		xPercent = ((Float) msg.obj).floatValue();
		}
		Rect contentBounds = new Rect();
		nativeScrollFocusedTextInput(mNativeClass, xPercent,
		msg.arg2, contentBounds);
		Message.obtain(
		mWebViewClassic.mPrivateHandler,
		WebViewClassic.UPDATE_CONTENT_BOUNDS,
		contentBounds).sendToTarget();
		msg.arg2);
		break;

		case LOAD_URL: {
		@@ -2851,7 +2846,7 @@ public final class WebViewCore {
		* Scroll the focused textfield to (xPercent, y) in document space
		*/
		private native void nativeScrollFocusedTextInput(int nativeClass,
		float xPercent, int y, Rect contentBounds);
		float xPercent, int y);

		// these must be in document space (i.e. not scaled/zoomed).
		private native void nativeSetScrollOffset(int nativeClass,