Populates sourceDevice attribute into MouseEvent

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 71 matching lines @@
 MouseEvent::MouseEvent(const AtomicString& eventType, bool canBubble, bool cancelable, PassRefPtrWillBeRawPtr<AbstractView> view,
     int detail, int screenX, int screenY, int windowX, int windowY,
     int movementX, int movementY,
     bool ctrlKey, bool altKey, bool shiftKey, bool metaKey,
     short button, unsigned short buttons, PassRefPtrWillBeRawPtr<EventTarget> relatedTarget,
     DataTransfer* dataTransfer, bool isSimulated, PlatformMouseEvent::SyntheticEventType syntheticEventType,
     double uiCreateTime)
     : MouseRelatedEvent(eventType, canBubble, cancelable, view, detail, IntPoint(screenX, screenY),
         IntPoint(windowX, windowY),
         IntPoint(movementX, movementY),
         ctrlKey, altKey, shiftKey, metaKey, isSimulated)

[Rick Byers, 2015/06/23 00:55:57]

rather than rely on a setSourceDevice method on UIEvent you can use a
conditional expression in the ctor here, eg:
syntheticEventType == PlatformMouseEvent::FromtTouch ?
InputDevice::firestouchEventsInputDevice() :
InputDevice::doesntFireTouchEventsInputDevice();

Ideally the source device in a UIEvent would be immutable (so we don't need to
worry about how to behave if it changes).

[lanwei, 2015/06/23 22:19:20]

Done.

     , m_button(button)
     , m_buttons(buttons)
     , m_relatedTarget(relatedTarget)
     , m_dataTransfer(dataTransfer)
     , m_syntheticEventType(syntheticEventType)
 {
     setUICreateTime(uiCreateTime);
+    if (syntheticEventType == PlatformMouseEvent::FromTouch)
+        setSourceDevice(InputDevice::firesTouchEventsInputDevice());
+    else
+        setSourceDevice(InputDevice::doesntFireTouchEventsInputDevice());
 }
 
 MouseEvent::MouseEvent(const AtomicString& eventType, const MouseEventInit& initializer)
     : MouseRelatedEvent(eventType, initializer.bubbles(), initializer.cancelable(), initializer.view(), initializer.detail(), IntPoint(initializer.screenX(), initializer.screenY()),
         IntPoint(0 /* pageX */, 0 /* pageY */),
         IntPoint(initializer.movementX(), initializer.movementY()),
-        initializer.ctrlKey(), initializer.altKey(), initializer.shiftKey(), initializer.metaKey(), false /* isSimulated */)
+        initializer.ctrlKey(), initializer.altKey(), initializer.shiftKey(), initializer.metaKey(), false /* isSimulated */, initializer.sourceDevice())
     , m_button(initializer.button())
     , m_buttons(initializer.buttons())
     , m_relatedTarget(initializer.relatedTarget())
     , m_dataTransfer(nullptr)
     , m_syntheticEventType(PlatformMouseEvent::RealOrIndistinguishable)
 {
     initCoordinates(IntPoint(initializer.clientX(), initializer.clientY()));
 }
 
 MouseEvent::~MouseEvent()
@@ skipping 10 matching lines @@
         buttons |= 2;
     if (modifiers & PlatformEvent::MiddleButtonDown)
         buttons |= 4;
 
     return buttons;
 }
 
 void MouseEvent::initMouseEvent(ScriptState* scriptState, const AtomicString& type, bool canBubble, bool cancelable, PassRefPtrWillBeRawPtr<AbstractView> view,
                                 int detail, int screenX, int screenY, int clientX, int clientY,
                                 bool ctrlKey, bool altKey, bool shiftKey, bool metaKey,
-                                short button, PassRefPtrWillBeRawPtr<EventTarget> relatedTarget, unsigned short buttons)
+                                short button, PassRefPtrWillBeRawPtr<EventTarget> relatedTarget, InputDevice* sourceDevice, unsigned short buttons)
 {
     if (dispatched())
         return;
 
     if (scriptState && scriptState->world().isIsolatedWorld())
         UIEventWithKeyState::didCreateEventInIsolatedWorld(ctrlKey, altKey, shiftKey, metaKey);
 
-    initUIEvent(type, canBubble, cancelable, view, detail);
+    initUIEvent(type, canBubble, cancelable, view, detail, sourceDevice);
 
     m_screenLocation = IntPoint(screenX, screenY);
     m_ctrlKey = ctrlKey;
     m_altKey = altKey;
     m_shiftKey = shiftKey;
     m_metaKey = metaKey;
     m_button = button;
     m_buttons = buttons;
     m_relatedTarget = relatedTarget;
 
     initCoordinates(IntPoint(clientX, clientY));
 
     // FIXME: m_isSimulated is not set to false here.
     // FIXME: m_dataTransfer is not set to nullptr here.
 }
 
+void MouseEvent::initMouseEvent(ScriptState* scriptState, const AtomicString& type, bool canBubble, bool cancelable, PassRefPtrWillBeRawPtr<AbstractView> view, int detail, int screenX, int screenY,
+    int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, short button, PassRefPtrWillBeRawPtr<EventTarget> relatedTarget, unsigned short buttons)
+{
+    initMouseEvent(scriptState, type, canBubble, cancelable, view, detail, screenX, screenY, clientX, clientY, ctrlKey, altKey, shiftKey, metaKey, button, relatedTarget, nullptr, buttons);
+}
+
 const AtomicString& MouseEvent::interfaceName() const
 {
     return EventNames::MouseEvent;
 }
 
 bool MouseEvent::isMouseEvent() const
 {
     return true;
 }
 
@@ skipping 109 matching lines @@
     if (event().type() != EventTypeNames::click || event().detail() != 2)
         return !swallowEvent;
 
     // Special case: If it's a double click event, we also send the dblclick event. This is not part
     // of the DOM specs, but is used for compatibility with the ondblclick="" attribute. This is treated
     // as a separate event in other DOM-compliant browsers like Firefox, and so we do the same.
     RefPtrWillBeRawPtr<MouseEvent> doubleClickEvent = MouseEvent::create();
     doubleClickEvent->initMouseEvent(nullptr, EventTypeNames::dblclick, event().bubbles(), event().cancelable(), event().view(),
         event().detail(), event().screenX(), event().screenY(), event().clientX(), event().clientY(),
         event().ctrlKey(), event().altKey(), event().shiftKey(), event().metaKey(),
-        event().button(), relatedTarget, event().buttons());
+        event().button(), relatedTarget, event().sourceDevice(), event().buttons());
     if (event().defaultHandled())
         doubleClickEvent->setDefaultHandled();
     EventDispatcher::dispatchEvent(dispatcher.node(), MouseEventDispatchMediator::create(doubleClickEvent));
     if (doubleClickEvent->defaultHandled() || doubleClickEvent->defaultPrevented())
         return false;
     return !swallowEvent;
 }
 
 } // namespace blink