Make the ContentGestureProvider a ui::FilteredGestureProvider

content/browser/renderer_host/input/web_input_event_util.cc

 // Copyright 2013 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 "content/browser/renderer_host/input/web_input_event_util.h"
 
 #include "base/strings/string_util.h"
+#include "ui/events/gesture_detection/gesture_event_data.h"
 #include "ui/events/gesture_detection/motion_event.h"
 
+using blink::WebGestureEvent;
 using blink::WebInputEvent;
 using blink::WebTouchEvent;
 using blink::WebTouchPoint;
 using ui::MotionEvent;
 
 namespace {
 
 const char* GetKeyIdentifier(ui::KeyboardCode key_code) {
   switch (key_code) {
     case ui::VKEY_MENU:
@@ skipping 205 matching lines @@
       std::min(event.GetPointerCount(),
                static_cast<size_t>(WebTouchEvent::touchesLengthCap));
   DCHECK_GT(result.touchesLength, 0U);
 
   for (size_t i = 0; i < result.touchesLength; ++i)
     result.touches[i] = CreateWebTouchPoint(event, i, scale);
 
   return result;
 }
 
+WebGestureEvent CreateWebGestureEventFromGestureEventData(
+    const ui::GestureEventData& data,
+    float scale) {
+  WebGestureEvent gesture;
+  gesture.x = data.x * scale;
+  gesture.y = data.y * scale;
+  gesture.timeStampSeconds = (data.time - base::TimeTicks()).InSecondsF();
+  gesture.sourceDevice = WebGestureEvent::Touchscreen;
+
+  switch (data.type) {
+    case ui::ET_GESTURE_SHOW_PRESS:
+      gesture.type = WebInputEvent::GestureShowPress;
+      gesture.data.showPress.width = data.details.show_press.width * scale;
+      gesture.data.showPress.width = data.details.show_press.width * scale;
+      break;
+    case ui::ET_GESTURE_DOUBLE_TAP:
+      gesture.type = WebInputEvent::GestureDoubleTap;
+      break;
+    case ui::ET_GESTURE_TAP:
+      gesture.type = WebInputEvent::GestureTap;
+      gesture.data.tap.tapCount = data.details.tap.tap_count;
+      gesture.data.tap.width = data.details.tap.width * scale;
+      gesture.data.tap.height = data.details.tap.height * scale;
+      break;
+    case ui::ET_GESTURE_TAP_UNCONFIRMED:
+      gesture.type = WebInputEvent::GestureTapUnconfirmed;
+      gesture.data.tap.tapCount = data.details.tap.tap_count;
+      gesture.data.tap.width = data.details.tap.width * scale;
+      gesture.data.tap.height = data.details.tap.height * scale;
+      break;
+    case ui::ET_GESTURE_LONG_PRESS:
+      gesture.type = WebInputEvent::GestureLongPress;
+      gesture.data.longPress.width = data.details.long_press.width * scale;
+      gesture.data.longPress.height = data.details.long_press.height * scale;
+      break;
+    case ui::ET_GESTURE_LONG_TAP:
+      gesture.type = WebInputEvent::GestureLongTap;
+      gesture.data.longPress.width = data.details.long_press.width * scale;
+      gesture.data.longPress.height = data.details.long_press.height * scale;
+      break;
+    case ui::ET_GESTURE_SCROLL_BEGIN:
+      gesture.type = WebInputEvent::GestureScrollBegin;
+      gesture.data.scrollBegin.deltaXHint =
+          data.details.scroll_begin.delta_x_hint * scale;
+      gesture.data.scrollBegin.deltaYHint =
+          data.details.scroll_begin.delta_y_hint * scale;
+      break;
+    case ui::ET_GESTURE_SCROLL_UPDATE:
+      gesture.type = WebInputEvent::GestureScrollUpdate;
+      gesture.data.scrollUpdate.deltaX =
+          data.details.scroll_update.delta_x * scale;
+      gesture.data.scrollUpdate.deltaY =
+          data.details.scroll_update.delta_y * scale;
+      gesture.data.scrollUpdate.velocityX =
+          data.details.scroll_update.velocity_x * scale;
+      gesture.data.scrollUpdate.velocityY =
+          data.details.scroll_update.velocity_y * scale;
+      break;
+    case ui::ET_GESTURE_SCROLL_END:
+      gesture.type = WebInputEvent::GestureScrollEnd;
+      break;
+    case ui::ET_SCROLL_FLING_START:
+      gesture.type = WebInputEvent::GestureFlingStart;
+      gesture.data.flingStart.velocityX =
+          data.details.fling_start.velocity_x * scale;
+      gesture.data.flingStart.velocityY =
+          data.details.fling_start.velocity_y * scale;
+      break;
+    case ui::ET_SCROLL_FLING_CANCEL:
+      gesture.type = WebInputEvent::GestureFlingCancel;
+      break;
+    case ui::ET_GESTURE_PINCH_BEGIN:
+      gesture.type = WebInputEvent::GesturePinchBegin;
+      break;
+    case ui::ET_GESTURE_PINCH_UPDATE:
+      gesture.type = WebInputEvent::GesturePinchUpdate;
+      gesture.data.pinchUpdate.scale = data.details.pinch_update.scale;
+      break;
+    case ui::ET_GESTURE_PINCH_END:
+      gesture.type = WebInputEvent::GesturePinchEnd;
+      break;
+    case ui::ET_GESTURE_TAP_CANCEL:
+      gesture.type = WebInputEvent::GestureTapCancel;
+      break;
+    case ui::ET_GESTURE_TAP_DOWN:
+      gesture.type = WebInputEvent::GestureTapDown;
+      gesture.data.tapDown.width = data.details.tap_down.width * scale;
+      gesture.data.tapDown.height = data.details.tap_down.height * scale;
+      break;
+    default:
+      NOTREACHED() << "ui::EventType provided wasn't a valid gesture event.";
+      break;
+  }
+
+  return gesture;
+}
+
 }  // namespace content