Track constant InputDeviceCapabilities objects per-window.

third_party/WebKit/Source/core/events/MouseEvent.cpp

 /*
  * Copyright (C) 2001 Peter Kelly (pmk@post.com)
  * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2003, 2005, 2006, 2008 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 11 matching lines @@
 
 #include "core/events/MouseEvent.h"
 
 #include "bindings/core/v8/DOMWrapperWorld.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "core/dom/Element.h"
 #include "core/events/EventDispatcher.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/LocalFrame.h"
+#include "core/input/InputDeviceCapabilities.h"
 #include "core/layout/LayoutObject.h"
 #include "core/paint/PaintLayer.h"
 #include "core/svg/SVGElement.h"
 #include "platform/PlatformMouseEvent.h"
 #include "public/platform/WebPointerProperties.h"
 
 namespace blink {
 
 namespace {
 
@@ skipping 148 matching lines @@
     const String& region,
     const WebMouseEvent& event)
     : UIEventWithKeyState(
           eventType,
           canBubble,
           cancelable,
           abstractView,
           0,
           static_cast<PlatformEvent::Modifiers>(event.modifiers()),
           TimeTicks::FromSeconds(event.timeStampSeconds()),
-          syntheticEventType == PlatformMouseEvent::FromTouch
-              ? InputDeviceCapabilities::firesTouchEventsSourceCapabilities()
-              : InputDeviceCapabilities::
-                    doesntFireTouchEventsSourceCapabilities()),
+          abstractView
+              ? abstractView->getInputDeviceCapabilities()->firesTouchEvents(
+                    syntheticEventType == PlatformMouseEvent::FromTouch)
+              : nullptr),
       m_screenLocation(event.globalX, event.globalY),
       m_movementDelta(flooredIntPoint(event.movementInRootFrame())),
       m_positionType(syntheticEventType == PlatformMouseEvent::Positionless
                          ? PositionType::Positionless
                          : PositionType::Position),
       m_button(0),
       m_buttons(platformModifiersToButtons(event.modifiers())),
       m_syntheticEventType(syntheticEventType),
       m_region(region) {
   IntPoint rootFrameCoordinates = flooredIntPoint(event.positionInRootFrame());
@@ skipping 22 matching lines @@
     const String& region,
     const PlatformMouseEvent* mouseEvent)
     : UIEventWithKeyState(
           eventType,
           canBubble,
           cancelable,
           abstractView,
           detail,
           modifiers,
           platformTimeStamp,
-          syntheticEventType == PlatformMouseEvent::FromTouch
-              ? InputDeviceCapabilities::firesTouchEventsSourceCapabilities()
-              : InputDeviceCapabilities::
-                    doesntFireTouchEventsSourceCapabilities()),
+          abstractView
+              ? abstractView->getInputDeviceCapabilities()->firesTouchEvents(
+                    syntheticEventType == PlatformMouseEvent::FromTouch)
+              : nullptr),
       m_screenLocation(screenX, screenY),
       m_movementDelta(movementX, movementY),
       m_positionType(syntheticEventType == PlatformMouseEvent::Positionless
                          ? PositionType::Positionless
                          : PositionType::Position),
       m_button(button),
       m_buttons(buttons),
       m_relatedTarget(relatedTarget),
       m_syntheticEventType(syntheticEventType),
       m_region(region) {
@@ skipping 339 matching lines @@
 
 int MouseEvent::offsetY() {
   if (!hasPosition())
     return 0;
   if (!m_hasCachedRelativePosition)
     computeRelativePosition();
   return std::round(m_offsetLocation.y());
 }
 
 }  // namespace blink