Bug 1446711 part 1. Get rid of nsIDOMMouseEvent::GetScreenX/Y. r=qdot

MozReview-Commit-ID: 9Y61WHTDVvF

docshell/base/nsDocShellTreeOwner.cpp

@@ -30,9 +30,9 @@
 #include "nsIDOMElement.h"
 #include "Link.h"
 #include "mozilla/dom/Element.h"
+#include "mozilla/dom/MouseEvent.h"
 #include "mozilla/dom/SVGTitleElement.h"
 #include "nsIDOMEvent.h"
-#include "nsIDOMMouseEvent.h"
 #include "nsIFormControl.h"
 #include "nsIImageLoadingContent.h"
 #include "nsIWebNavigation.h"
@@ -1187,7 +1187,7 @@ ChromeTooltipListener::HandleEvent(nsIDOMEvent* aEvent)
 nsresult
 ChromeTooltipListener::MouseMove(nsIDOMEvent* aMouseEvent)
 {
-  nsCOMPtr<nsIDOMMouseEvent> mouseEvent(do_QueryInterface(aMouseEvent));
+  MouseEvent* mouseEvent = aMouseEvent->InternalDOMEvent()->AsMouseEvent();
   if (!mouseEvent) {
     return NS_OK;
   }
@@ -1212,8 +1212,8 @@ ChromeTooltipListener::MouseMove(nsIDOMEvent* aMouseEvent)
 
   mMouseClientX = newMouseX;
   mMouseClientY = newMouseY;
-  mouseEvent->GetScreenX(&mMouseScreenX);
-  mouseEvent->GetScreenY(&mMouseScreenY);
+  mMouseScreenX = mouseEvent->ScreenX(CallerType::System);
+  mMouseScreenY = mouseEvent->ScreenY(CallerType::System);
 
   if (mTooltipTimer) {
     mTooltipTimer->Cancel();

dom/events/Event.h

@@ -37,6 +37,7 @@ class EventMessageAutoOverride;
 // autogenerated since it has some extra methods.
 class ExtendableEvent;
 class KeyboardEvent;
+class MouseEvent;
 class TimeEvent;
 class WantsPopupControlCheck;
 class XULCommandEvent;
@@ -139,6 +140,13 @@ public:
     return nullptr;
   }
 
+  // MouseEvent has a non-autogeneratable initMouseEvent and other
+  // non-autogeneratable methods.
+  virtual MouseEvent* AsMouseEvent()
+  {
+    return nullptr;
+  }
+
   // nsIDOMEvent Interface
   NS_DECL_NSIDOMEVENT
 
@@ -401,11 +409,14 @@ private:
 
 #define NS_FORWARD_TO_EVENT                                             \
   NS_FORWARD_NSIDOMEVENT(Event::)                                       \
+  using Event::GetTarget; /* Because forwarding shadows. */             \
+  using Event::GetOriginalTarget; /* Because forwarding shadows. */     \
   virtual void PreventDefault(JSContext* aCx, CallerType aCallerType) override { Event::PreventDefault(aCx, aCallerType); }
 
 #define NS_FORWARD_NSIDOMEVENT_NO_SERIALIZATION_NO_DUPLICATION(_to) \
   NS_IMETHOD GetType(nsAString& aType) override { return _to GetType(aType); } \
   NS_IMETHOD GetTarget(nsIDOMEventTarget** aTarget) override { return _to GetTarget(aTarget); } \
+  using Event::GetTarget; /* Because forwarding shadows. */             \
   NS_IMETHOD GetCurrentTarget(nsIDOMEventTarget** aCurrentTarget) override { return _to GetCurrentTarget(aCurrentTarget); } \
   NS_IMETHOD GetEventPhase(uint16_t* aEventPhase) override { return _to GetEventPhase(aEventPhase); } \
   NS_IMETHOD GetBubbles(bool* aBubbles) override { return _to GetBubbles(aBubbles); } \
@@ -418,6 +429,7 @@ private:
   NS_IMETHOD GetDefaultPrevented(bool* aDefaultPrevented) override { return _to GetDefaultPrevented(aDefaultPrevented); } \
   NS_IMETHOD StopImmediatePropagation(void) override { return _to StopImmediatePropagation(); } \
   NS_IMETHOD GetOriginalTarget(nsIDOMEventTarget** aOriginalTarget) override { return _to GetOriginalTarget(aOriginalTarget); } \
+  using Event::GetOriginalTarget; /* Because forwarding shadows. */     \
   NS_IMETHOD GetExplicitOriginalTarget(nsIDOMEventTarget** aExplicitOriginalTarget) override { return _to GetExplicitOriginalTarget(aExplicitOriginalTarget); } \
   NS_IMETHOD GetIsTrusted(bool* aIsTrusted) override { return _to GetIsTrusted(aIsTrusted); } \
   NS_IMETHOD SetTarget(nsIDOMEventTarget* aTarget) override { return _to SetTarget(aTarget); } \

dom/events/MouseEvent.cpp

@@ -332,14 +332,6 @@ MouseEvent::GetMozMovementY(int32_t* aMovementY)
   return NS_OK;
 }
 
-NS_IMETHODIMP
-MouseEvent::GetScreenX(int32_t* aScreenX)
-{
-  NS_ENSURE_ARG_POINTER(aScreenX);
-  *aScreenX = ScreenX(CallerType::System);
-  return NS_OK;
-}
-
 int32_t
 MouseEvent::ScreenX(CallerType aCallerType)
 {
@@ -357,14 +349,6 @@ MouseEvent::ScreenX(CallerType aCallerType)
   return Event::GetScreenCoords(mPresContext, mEvent, mEvent->mRefPoint).x;
 }
 
-NS_IMETHODIMP
-MouseEvent::GetScreenY(int32_t* aScreenY)
-{
-  NS_ENSURE_ARG_POINTER(aScreenY);
-  *aScreenY = ScreenY(CallerType::System);
-  return NS_OK;
-}
-
 int32_t
 MouseEvent::ScreenY(CallerType aCallerType)
 {

dom/events/MouseEvent.h

@@ -37,6 +37,11 @@ public:
     return MouseEventBinding::Wrap(aCx, this, aGivenProto);
   }
 
+  virtual MouseEvent* AsMouseEvent() override
+  {
+    return this;
+  }
+
   // Web IDL binding methods
   virtual uint32_t Which(CallerType aCallerType) override
   {

dom/interfaces/events/nsIDOMMouseEvent.idl

@@ -16,9 +16,6 @@
 [builtinclass, uuid(5bdab8d8-7933-4c5c-b6d1-ab34481237f7)]
 interface nsIDOMMouseEvent : nsIDOMUIEvent
 {
-  readonly attribute long               screenX;
-  readonly attribute long               screenY;
-
   readonly attribute long               mozMovementX;
   readonly attribute long               mozMovementY;
 

dom/xul/nsXULPopupListener.cpp

@@ -29,6 +29,7 @@
 #include "mozilla/dom/Event.h" // for nsIDOMEvent::InternalDOMEvent()
 #include "mozilla/dom/EventTarget.h"
 #include "mozilla/dom/FragmentOrElement.h"
+#include "mozilla/dom/MouseEvent.h"
 
 // for event firing in context menus
 #include "nsPresContext.h"
@@ -100,16 +101,14 @@ nsXULPopupListener::HandleEvent(nsIDOMEvent* aEvent)
        (eventType.EqualsLiteral("contextmenu") && mIsContext)))
     return NS_OK;
 
-  int16_t button;
-
-  nsCOMPtr<nsIDOMMouseEvent> mouseEvent = do_QueryInterface(aEvent);
+  MouseEvent* mouseEvent = aEvent->InternalDOMEvent()->AsMouseEvent();
   if (!mouseEvent) {
     //non-ui event passed in.  bad things.
     return NS_OK;
   }
 
   // Get the node that was clicked on.
-  EventTarget* target = mouseEvent->AsEvent()->InternalDOMEvent()->GetTarget();
+  EventTarget* target = mouseEvent->GetTarget();
   nsCOMPtr<nsIDOMNode> targetNode = do_QueryInterface(target);
 
   if (!targetNode && mIsContext) {
@@ -134,15 +133,14 @@ nsXULPopupListener::HandleEvent(nsIDOMEvent* aEvent)
   }
 
   {
-    EventTarget* originalTarget = mouseEvent->AsEvent()->InternalDOMEvent()->GetOriginalTarget();
+    EventTarget* originalTarget = mouseEvent->GetOriginalTarget();
     nsCOMPtr<nsIContent> content = do_QueryInterface(originalTarget);
     if (content && EventStateManager::IsRemoteTarget(content)) {
       return NS_OK;
     }
   }
 
-  bool preventDefault;
-  mouseEvent->AsEvent()->GetDefaultPrevented(&preventDefault);
+  bool preventDefault = mouseEvent->DefaultPrevented();
   if (preventDefault && targetNode && mIsContext) {
     // Someone called preventDefault on a context menu.
     // Let's make sure they are allowed to do so.
@@ -203,14 +201,14 @@ nsXULPopupListener::HandleEvent(nsIDOMEvent* aEvent)
   }
   else {
     // Only open popups when the left mouse button is down.
-    mouseEvent->GetButton(&button);
-    if (button != 0)
+    if (mouseEvent->Button() != 0) {
       return NS_OK;
     }
+  }
 
   // Open the popup. LaunchPopup will call StopPropagation and PreventDefault
   // in the right situations.
-  LaunchPopup(aEvent, targetContent);
+  LaunchPopup(mouseEvent, targetContent);
 
   return NS_OK;
 }
@@ -328,7 +326,7 @@ GetImmediateChild(nsIContent* aContent, nsAtom *aTag)
 // the popup content in the document.
 //
 nsresult
-nsXULPopupListener::LaunchPopup(nsIDOMEvent* aEvent, nsIContent* aTargetContent)
+nsXULPopupListener::LaunchPopup(MouseEvent* aEvent, nsIContent* aTargetContent)
 {
   nsresult rv = NS_OK;
 
@@ -416,10 +414,8 @@ nsXULPopupListener::LaunchPopup(nsIDOMEvent* aEvent, nsIContent* aTargetContent)
                   false, true, false, aEvent);
   }
   else {
-    int32_t xPos = 0, yPos = 0;
-    nsCOMPtr<nsIDOMMouseEvent> mouseEvent = do_QueryInterface(aEvent);
-    mouseEvent->GetScreenX(&xPos);
-    mouseEvent->GetScreenY(&yPos);
+    int32_t xPos = aEvent->ScreenX(CallerType::System);
+    int32_t yPos = aEvent->ScreenY(CallerType::System);
 
     pm->ShowPopupAtScreen(mPopupContent, xPos, yPos, mIsContext, aEvent);
   }

dom/xul/nsXULPopupListener.h

@@ -18,6 +18,12 @@
 #include "nsIDOMEventListener.h"
 #include "nsCycleCollectionParticipant.h"
 
+namespace mozilla {
+namespace dom {
+class MouseEvent;
+} // namespace dom
+} // namespace mozilla
+
 class nsXULPopupListener : public nsIDOMEventListener
 {
 public:
@@ -37,7 +43,8 @@ protected:
 
     // open the popup. aEvent is the event that triggered the popup such as
     // a mouse click and aTargetContent is the target of this event.
-    virtual nsresult LaunchPopup(nsIDOMEvent* aEvent, nsIContent* aTargetContent);
+    virtual nsresult LaunchPopup(mozilla::dom::MouseEvent* aEvent,
+                                 nsIContent* aTargetContent);
 
     // close the popup when the listener goes away
     virtual void ClosePopup();

layout/xul/nsXULTooltipListener.cpp

@@ -6,7 +6,6 @@
 
 #include "nsXULTooltipListener.h"
 
-#include "nsIDOMMouseEvent.h"
 #include "nsXULElement.h"
 #include "nsIDocument.h"
 #include "nsGkAtoms.h"
@@ -30,6 +29,7 @@
 #include "mozilla/dom/Element.h"
 #include "mozilla/dom/Event.h" // for nsIDOMEvent::InternalDOMEvent()
 #include "mozilla/dom/BoxObject.h"
+#include "mozilla/dom/MouseEvent.h"
 #include "mozilla/TextEvents.h"
 
 using namespace mozilla;
@@ -132,12 +132,12 @@ nsXULTooltipListener::MouseMove(nsIDOMEvent* aEvent)
   // timer callback. On win32, we'll get a MouseMove event even when a popup goes away --
   // even when the mouse doesn't change position! To get around this, we make sure the
   // mouse has really moved before proceeding.
-  nsCOMPtr<nsIDOMMouseEvent> mouseEvent(do_QueryInterface(aEvent));
-  if (!mouseEvent)
+  MouseEvent* mouseEvent = aEvent->InternalDOMEvent()->AsMouseEvent();
+  if (!mouseEvent) {
     return;
-  int32_t newMouseX, newMouseY;
-  mouseEvent->GetScreenX(&newMouseX);
-  mouseEvent->GetScreenY(&newMouseY);
+  }
+  int32_t newMouseX = mouseEvent->ScreenX(CallerType::System);
+  int32_t newMouseY = mouseEvent->ScreenY(CallerType::System);
 
   // filter out false win32 MouseMove event
   if (mMouseScreenX == newMouseX && mMouseScreenY == newMouseY)
@@ -330,7 +330,7 @@ nsXULTooltipListener::RemoveTooltipSupport(nsIContent* aNode)
 
 #ifdef MOZ_XUL
 void
-nsXULTooltipListener::CheckTreeBodyMove(nsIDOMMouseEvent* aMouseEvent)
+nsXULTooltipListener::CheckTreeBodyMove(MouseEvent* aMouseEvent)
 {
   nsCOMPtr<nsIContent> sourceNode = do_QueryReferent(mSourceNode);
   if (!sourceNode)
@@ -347,9 +347,8 @@ nsXULTooltipListener::CheckTreeBodyMove(nsIDOMMouseEvent* aMouseEvent)
   nsCOMPtr<nsITreeBoxObject> obx;
   GetSourceTreeBoxObject(getter_AddRefs(obx));
   if (bx && obx) {
-    int32_t x, y;
-    aMouseEvent->GetScreenX(&x);
-    aMouseEvent->GetScreenY(&y);
+    int32_t x = aMouseEvent->ScreenX(CallerType::System);
+    int32_t y = aMouseEvent->ScreenY(CallerType::System);
 
     int32_t row;
     nsCOMPtr<nsITreeColumn> col;

layout/xul/nsXULTooltipListener.h

@@ -8,7 +8,6 @@
 #define nsXULTooltipListener_h__
 
 #include "nsIDOMEventListener.h"
-#include "nsIDOMMouseEvent.h"
 #include "nsIDOMElement.h"
 #include "nsITimer.h"
 #include "nsCOMPtr.h"
@@ -22,6 +21,12 @@
 
 class nsIContent;
 
+namespace mozilla {
+namespace dom {
+class MouseEvent;
+} // namespace dom
+} // namespace mozilla
+
 class nsXULTooltipListener final : public nsIDOMEventListener
 {
 public:
@@ -50,7 +55,7 @@ protected:
   void KillTooltipTimer();
 
 #ifdef MOZ_XUL
-  void CheckTreeBodyMove(nsIDOMMouseEvent* aMouseEvent);
+  void CheckTreeBodyMove(mozilla::dom::MouseEvent* aMouseEvent);
   nsresult GetSourceTreeBoxObject(nsITreeBoxObject** aBoxObject);
 #endif