Index: third_party/WebKit/Source/platform/WebGestureEvent.cpp |
diff --git a/third_party/WebKit/Source/platform/WebGestureEvent.cpp b/third_party/WebKit/Source/platform/WebGestureEvent.cpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..b34667d12c157028533ec081d9dbfe952ada56d0 |
--- /dev/null |
+++ b/third_party/WebKit/Source/platform/WebGestureEvent.cpp |
@@ -0,0 +1,156 @@ |
+// Copyright 2016 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "public/platform/WebGestureEvent.h" |
+ |
+namespace blink { |
+ |
+float WebGestureEvent::deltaXInRootFrame() const { |
+ if (type == WebInputEvent::GestureScrollBegin) |
+ return data.scrollBegin.deltaXHint / m_frameScale; |
+ DCHECK(type == WebInputEvent::GestureScrollUpdate); |
+ return data.scrollUpdate.deltaX / m_frameScale; |
+} |
+ |
+float WebGestureEvent::deltaYInRootFrame() const { |
+ if (type == WebInputEvent::GestureScrollBegin) |
+ return data.scrollBegin.deltaYHint / m_frameScale; |
+ DCHECK(type == WebInputEvent::GestureScrollUpdate); |
+ return data.scrollUpdate.deltaY / m_frameScale; |
+} |
+ |
+WebGestureEvent::ScrollUnits WebGestureEvent::deltaUnits() const { |
+ if (type == WebInputEvent::GestureScrollBegin) |
+ return data.scrollBegin.deltaHintUnits; |
+ if (type == WebInputEvent::GestureScrollUpdate) |
+ return data.scrollUpdate.deltaUnits; |
+ DCHECK(type == WebInputEvent::GestureScrollEnd); |
+ return data.scrollEnd.deltaUnits; |
+} |
+ |
+float WebGestureEvent::pinchScale() const { |
+ DCHECK(type == WebInputEvent::GesturePinchUpdate); |
+ return data.pinchUpdate.scale; |
+} |
+ |
+WebGestureEvent::InertialPhaseState WebGestureEvent::inertialPhase() const { |
+ if (type == WebInputEvent::GestureScrollBegin) |
+ return data.scrollBegin.inertialPhase; |
+ if (type == WebInputEvent::GestureScrollUpdate) |
+ return data.scrollUpdate.inertialPhase; |
+ DCHECK(type == WebInputEvent::GestureScrollEnd); |
+ return data.scrollEnd.inertialPhase; |
+} |
+ |
+bool WebGestureEvent::synthetic() const { |
+ if (type == WebInputEvent::GestureScrollBegin) |
+ return data.scrollBegin.synthetic; |
+ DCHECK(type == WebInputEvent::GestureScrollEnd); |
+ return data.scrollEnd.synthetic; |
+} |
+ |
+float WebGestureEvent::velocityX() const { |
+ if (type == WebInputEvent::GestureScrollUpdate) |
+ return data.scrollUpdate.velocityX; |
+ DCHECK(type == WebInputEvent::GestureFlingStart); |
+ return data.flingStart.velocityX; |
+} |
+ |
+float WebGestureEvent::velocityY() const { |
+ if (type == WebInputEvent::GestureScrollUpdate) |
+ return data.scrollUpdate.velocityY; |
+ DCHECK(type == WebInputEvent::GestureFlingStart); |
+ return data.flingStart.velocityY; |
+} |
+ |
+WebFloatSize WebGestureEvent::tapAreaInRootFrame() const { |
+ if (type == WebInputEvent::GestureTwoFingerTap) { |
+ return WebFloatSize(data.twoFingerTap.firstFingerWidth / m_frameScale, |
+ data.twoFingerTap.firstFingerHeight / m_frameScale); |
+ } else if (type == WebInputEvent::GestureLongPress || |
+ type == WebInputEvent::GestureLongTap) { |
+ return WebFloatSize(data.longPress.width / m_frameScale, |
+ data.longPress.height / m_frameScale); |
+ } else if (type == WebInputEvent::GestureTap || |
+ type == WebInputEvent::GestureTapUnconfirmed) { |
+ return WebFloatSize(data.tap.width / m_frameScale, |
+ data.tap.height / m_frameScale); |
+ } else if (type == WebInputEvent::GestureTapDown) { |
+ return WebFloatSize(data.tapDown.width / m_frameScale, |
+ data.tapDown.height / m_frameScale); |
+ } else if (type == WebInputEvent::GestureShowPress) { |
+ return WebFloatSize(data.showPress.width / m_frameScale, |
+ data.showPress.height / m_frameScale); |
+ } |
+ // This function is called for all gestures and determined if the tap |
+ // area is empty or not; so return an empty rect here. |
+ return WebFloatSize(); |
+} |
+ |
+WebFloatPoint WebGestureEvent::positionInRootFrame() const { |
+ return WebFloatPoint((x / m_frameScale) + m_frameTranslate.x, |
+ (y / m_frameScale) + m_frameTranslate.y); |
+} |
+ |
+int WebGestureEvent::tapCount() const { |
+ DCHECK(type == WebInputEvent::GestureTap); |
+ return data.tap.tapCount; |
+} |
+ |
+void WebGestureEvent::applyTouchAdjustment(WebFloatPoint rootFrameCoords) { |
+ // Update the window-relative position of the event so that the node that |
+ // was ultimately hit is under this point (i.e. elementFromPoint for the |
+ // client co-ordinates in a 'click' event should yield the target). The |
+ // global position is intentionally left unmodified because it's intended to |
+ // reflect raw co-ordinates unrelated to any content. |
+ m_frameTranslate.x = rootFrameCoords.x - (x / m_frameScale); |
+ m_frameTranslate.y = rootFrameCoords.y - (y / m_frameScale); |
+} |
+ |
+void WebGestureEvent::flattenTransform() { |
+ if (m_frameScale != 1) { |
+ switch (type) { |
+ case WebInputEvent::GestureScrollBegin: |
+ data.scrollBegin.deltaXHint /= m_frameScale; |
+ data.scrollBegin.deltaYHint /= m_frameScale; |
+ break; |
+ case WebInputEvent::GestureScrollUpdate: |
+ data.scrollUpdate.deltaX /= m_frameScale; |
+ data.scrollUpdate.deltaY /= m_frameScale; |
+ break; |
+ case WebInputEvent::GestureTwoFingerTap: |
+ data.twoFingerTap.firstFingerWidth /= m_frameScale; |
+ data.twoFingerTap.firstFingerHeight /= m_frameScale; |
+ break; |
+ case WebInputEvent::GestureLongPress: |
+ case WebInputEvent::GestureLongTap: |
+ data.longPress.width /= m_frameScale; |
+ data.longPress.height /= m_frameScale; |
+ break; |
+ case WebInputEvent::GestureTap: |
+ case WebInputEvent::GestureTapUnconfirmed: |
+ data.tap.width /= m_frameScale; |
+ data.tap.height /= m_frameScale; |
+ break; |
+ case WebInputEvent::GestureTapDown: |
+ data.tapDown.width /= m_frameScale; |
+ data.tapDown.height /= m_frameScale; |
+ break; |
+ case WebInputEvent::GestureShowPress: |
+ data.showPress.width /= m_frameScale; |
+ data.showPress.height /= m_frameScale; |
+ break; |
+ default: |
+ break; |
+ } |
+ } |
+ |
+ x = (x / m_frameScale) + m_frameTranslate.x; |
+ y = (y / m_frameScale) + m_frameTranslate.y; |
+ m_frameTranslate.x = 0; |
+ m_frameTranslate.y = 0; |
+ m_frameScale = 1; |
+} |
+ |
+} // namespace blink |