michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "mozilla/dom/MouseEvent.h"
michael@0: #include "mozilla/MouseEvents.h"
michael@0: #include "nsContentUtils.h"
michael@0: #include "nsIContent.h"
michael@0: #include "prtime.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace dom {
michael@0: 
michael@0: MouseEvent::MouseEvent(EventTarget* aOwner,
michael@0:                        nsPresContext* aPresContext,
michael@0:                        WidgetMouseEventBase* aEvent)
michael@0:   : UIEvent(aOwner, aPresContext,
michael@0:             aEvent ? aEvent : new WidgetMouseEvent(false, 0, nullptr,
michael@0:                                                    WidgetMouseEvent::eReal))
michael@0: {
michael@0:   // There's no way to make this class' ctor allocate an WidgetMouseScrollEvent.
michael@0:   // It's not that important, though, since a scroll event is not a real
michael@0:   // DOM event.
michael@0: 
michael@0:   WidgetMouseEvent* mouseEvent = mEvent->AsMouseEvent();
michael@0:   if (aEvent) {
michael@0:     mEventIsInternal = false;
michael@0:   }
michael@0:   else {
michael@0:     mEventIsInternal = true;
michael@0:     mEvent->time = PR_Now();
michael@0:     mEvent->refPoint.x = mEvent->refPoint.y = 0;
michael@0:     mouseEvent->inputSource = nsIDOMMouseEvent::MOZ_SOURCE_UNKNOWN;
michael@0:   }
michael@0: 
michael@0:   if (mouseEvent) {
michael@0:     MOZ_ASSERT(mouseEvent->reason != WidgetMouseEvent::eSynthesized,
michael@0:                "Don't dispatch DOM events from synthesized mouse events");
michael@0:     mDetail = mouseEvent->clickCount;
michael@0:   }
michael@0: }
michael@0: 
michael@0: NS_IMPL_ADDREF_INHERITED(MouseEvent, UIEvent)
michael@0: NS_IMPL_RELEASE_INHERITED(MouseEvent, UIEvent)
michael@0: 
michael@0: NS_INTERFACE_MAP_BEGIN(MouseEvent)
michael@0:   NS_INTERFACE_MAP_ENTRY(nsIDOMMouseEvent)
michael@0: NS_INTERFACE_MAP_END_INHERITING(UIEvent)
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: MouseEvent::InitMouseEvent(const nsAString& aType,
michael@0:                            bool aCanBubble,
michael@0:                            bool aCancelable,
michael@0:                            nsIDOMWindow* aView,
michael@0:                            int32_t aDetail,
michael@0:                            int32_t aScreenX,
michael@0:                            int32_t aScreenY,
michael@0:                            int32_t aClientX,
michael@0:                            int32_t aClientY, 
michael@0:                            bool aCtrlKey,
michael@0:                            bool aAltKey,
michael@0:                            bool aShiftKey,
michael@0:                            bool aMetaKey,
michael@0:                            uint16_t aButton,
michael@0:                            nsIDOMEventTarget* aRelatedTarget)
michael@0: {
michael@0:   nsresult rv =
michael@0:     UIEvent::InitUIEvent(aType, aCanBubble, aCancelable, aView, aDetail);
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:   switch(mEvent->eventStructType) {
michael@0:     case NS_MOUSE_EVENT:
michael@0:     case NS_MOUSE_SCROLL_EVENT:
michael@0:     case NS_WHEEL_EVENT:
michael@0:     case NS_DRAG_EVENT:
michael@0:     case NS_POINTER_EVENT:
michael@0:     case NS_SIMPLE_GESTURE_EVENT: {
michael@0:       WidgetMouseEventBase* mouseEventBase = mEvent->AsMouseEventBase();
michael@0:       mouseEventBase->relatedTarget = aRelatedTarget;
michael@0:       mouseEventBase->button = aButton;
michael@0:       mouseEventBase->InitBasicModifiers(aCtrlKey, aAltKey, aShiftKey, aMetaKey);
michael@0:       mClientPoint.x = aClientX;
michael@0:       mClientPoint.y = aClientY;
michael@0:       mouseEventBase->refPoint.x = aScreenX;
michael@0:       mouseEventBase->refPoint.y = aScreenY;
michael@0: 
michael@0:       WidgetMouseEvent* mouseEvent = mEvent->AsMouseEvent();
michael@0:       if (mouseEvent) {
michael@0:         mouseEvent->clickCount = aDetail;
michael@0:       }
michael@0:       break;
michael@0:     }
michael@0:     default:
michael@0:        break;
michael@0:   }
michael@0: 
michael@0:   return NS_OK;
michael@0: }   
michael@0: 
michael@0: nsresult
michael@0: MouseEvent::InitMouseEvent(const nsAString& aType,
michael@0:                            bool aCanBubble,
michael@0:                            bool aCancelable,
michael@0:                            nsIDOMWindow* aView,
michael@0:                            int32_t aDetail,
michael@0:                            int32_t aScreenX,
michael@0:                            int32_t aScreenY,
michael@0:                            int32_t aClientX,
michael@0:                            int32_t aClientY,
michael@0:                            int16_t aButton,
michael@0:                            nsIDOMEventTarget* aRelatedTarget,
michael@0:                            const nsAString& aModifiersList)
michael@0: {
michael@0:   Modifiers modifiers = ComputeModifierState(aModifiersList);
michael@0: 
michael@0:   nsresult rv = InitMouseEvent(aType, aCanBubble, aCancelable, aView,
michael@0:                                aDetail, aScreenX, aScreenY, aClientX, aClientY,
michael@0:                                (modifiers & MODIFIER_CONTROL) != 0,
michael@0:                                (modifiers & MODIFIER_ALT) != 0,
michael@0:                                (modifiers & MODIFIER_SHIFT) != 0,
michael@0:                                (modifiers & MODIFIER_META) != 0,
michael@0:                                aButton, aRelatedTarget);
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:   switch(mEvent->eventStructType) {
michael@0:     case NS_MOUSE_EVENT:
michael@0:     case NS_MOUSE_SCROLL_EVENT:
michael@0:     case NS_WHEEL_EVENT:
michael@0:     case NS_DRAG_EVENT:
michael@0:     case NS_POINTER_EVENT:
michael@0:     case NS_SIMPLE_GESTURE_EVENT:
michael@0:       mEvent->AsInputEvent()->modifiers = modifiers;
michael@0:       return NS_OK;
michael@0:     default:
michael@0:       MOZ_CRASH("There is no space to store the modifiers");
michael@0:   }
michael@0: }
michael@0: 
michael@0: already_AddRefed<MouseEvent>
michael@0: MouseEvent::Constructor(const GlobalObject& aGlobal,
michael@0:                         const nsAString& aType,
michael@0:                         const MouseEventInit& aParam,
michael@0:                         ErrorResult& aRv)
michael@0: {
michael@0:   nsCOMPtr<EventTarget> t = do_QueryInterface(aGlobal.GetAsSupports());
michael@0:   nsRefPtr<MouseEvent> e = new MouseEvent(t, nullptr, nullptr);
michael@0:   bool trusted = e->Init(t);
michael@0:   e->InitMouseEvent(aType, aParam.mBubbles, aParam.mCancelable,
michael@0:                     aParam.mView, aParam.mDetail, aParam.mScreenX,
michael@0:                     aParam.mScreenY, aParam.mClientX, aParam.mClientY,
michael@0:                     aParam.mCtrlKey, aParam.mAltKey, aParam.mShiftKey,
michael@0:                     aParam.mMetaKey, aParam.mButton, aParam.mRelatedTarget,
michael@0:                     aRv);
michael@0:   e->SetTrusted(trusted);
michael@0: 
michael@0:   switch (e->mEvent->eventStructType) {
michael@0:     case NS_MOUSE_EVENT:
michael@0:     case NS_MOUSE_SCROLL_EVENT:
michael@0:     case NS_WHEEL_EVENT:
michael@0:     case NS_DRAG_EVENT:
michael@0:     case NS_POINTER_EVENT:
michael@0:     case NS_SIMPLE_GESTURE_EVENT:
michael@0:       e->mEvent->AsMouseEventBase()->buttons = aParam.mButtons;
michael@0:       break;
michael@0:     default:
michael@0:       break;
michael@0:   }
michael@0: 
michael@0:   return e.forget();
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: MouseEvent::InitNSMouseEvent(const nsAString& aType,
michael@0:                              bool aCanBubble,
michael@0:                              bool aCancelable,
michael@0:                              nsIDOMWindow* aView,
michael@0:                              int32_t aDetail,
michael@0:                              int32_t aScreenX,
michael@0:                              int32_t aScreenY,
michael@0:                              int32_t aClientX,
michael@0:                              int32_t aClientY,
michael@0:                              bool aCtrlKey,
michael@0:                              bool aAltKey,
michael@0:                              bool aShiftKey,
michael@0:                              bool aMetaKey,
michael@0:                              uint16_t aButton,
michael@0:                              nsIDOMEventTarget* aRelatedTarget,
michael@0:                              float aPressure,
michael@0:                              uint16_t aInputSource)
michael@0: {
michael@0:   nsresult rv = MouseEvent::InitMouseEvent(aType, aCanBubble, aCancelable,
michael@0:                                            aView, aDetail, aScreenX, aScreenY,
michael@0:                                            aClientX, aClientY,
michael@0:                                            aCtrlKey, aAltKey, aShiftKey,
michael@0:                                            aMetaKey, aButton, aRelatedTarget);
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:   WidgetMouseEventBase* mouseEventBase = mEvent->AsMouseEventBase();
michael@0:   mouseEventBase->pressure = aPressure;
michael@0:   mouseEventBase->inputSource = aInputSource;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: MouseEvent::GetButton(int16_t* aButton)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aButton);
michael@0:   *aButton = Button();
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: int16_t
michael@0: MouseEvent::Button()
michael@0: {
michael@0:   switch(mEvent->eventStructType)
michael@0:   {
michael@0:     case NS_MOUSE_EVENT:
michael@0:     case NS_MOUSE_SCROLL_EVENT:
michael@0:     case NS_WHEEL_EVENT:
michael@0:     case NS_DRAG_EVENT:
michael@0:     case NS_POINTER_EVENT:
michael@0:     case NS_SIMPLE_GESTURE_EVENT:
michael@0:       return mEvent->AsMouseEventBase()->button;
michael@0:     default:
michael@0:       NS_WARNING("Tried to get mouse button for non-mouse event!");
michael@0:       return WidgetMouseEvent::eLeftButton;
michael@0:   }
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: MouseEvent::GetButtons(uint16_t* aButtons)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aButtons);
michael@0:   *aButtons = Buttons();
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: uint16_t
michael@0: MouseEvent::Buttons()
michael@0: {
michael@0:   switch(mEvent->eventStructType)
michael@0:   {
michael@0:     case NS_MOUSE_EVENT:
michael@0:     case NS_MOUSE_SCROLL_EVENT:
michael@0:     case NS_WHEEL_EVENT:
michael@0:     case NS_DRAG_EVENT:
michael@0:     case NS_POINTER_EVENT:
michael@0:     case NS_SIMPLE_GESTURE_EVENT:
michael@0:       return mEvent->AsMouseEventBase()->buttons;
michael@0:     default:
michael@0:       MOZ_CRASH("Tried to get mouse buttons for non-mouse event!");
michael@0:   }
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: MouseEvent::GetRelatedTarget(nsIDOMEventTarget** aRelatedTarget)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aRelatedTarget);
michael@0:   *aRelatedTarget = GetRelatedTarget().take();
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: already_AddRefed<EventTarget>
michael@0: MouseEvent::GetRelatedTarget()
michael@0: {
michael@0:   nsCOMPtr<EventTarget> relatedTarget;
michael@0:   switch(mEvent->eventStructType)
michael@0:   {
michael@0:     case NS_MOUSE_EVENT:
michael@0:     case NS_MOUSE_SCROLL_EVENT:
michael@0:     case NS_WHEEL_EVENT:
michael@0:     case NS_DRAG_EVENT:
michael@0:     case NS_POINTER_EVENT:
michael@0:     case NS_SIMPLE_GESTURE_EVENT:
michael@0:       relatedTarget =
michael@0:         do_QueryInterface(mEvent->AsMouseEventBase()->relatedTarget);
michael@0:       break;
michael@0:     default:
michael@0:       break;
michael@0:   }
michael@0: 
michael@0:   if (relatedTarget) {
michael@0:     nsCOMPtr<nsIContent> content = do_QueryInterface(relatedTarget);
michael@0:     if (content && content->ChromeOnlyAccess() &&
michael@0:         !nsContentUtils::CanAccessNativeAnon()) {
michael@0:       relatedTarget = do_QueryInterface(content->FindFirstNonChromeOnlyAccessContent());
michael@0:     }
michael@0: 
michael@0:     if (relatedTarget) {
michael@0:       relatedTarget = relatedTarget->GetTargetForDOMEvent();
michael@0:     }
michael@0:     return relatedTarget.forget();
michael@0:   }
michael@0:   return nullptr;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: MouseEvent::GetMozMovementX(int32_t* aMovementX)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aMovementX);
michael@0:   *aMovementX = MozMovementX();
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: MouseEvent::GetMozMovementY(int32_t* aMovementY)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aMovementY);
michael@0:   *aMovementY = MozMovementY();
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: MouseEvent::GetScreenX(int32_t* aScreenX)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aScreenX);
michael@0:   *aScreenX = ScreenX();
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: int32_t
michael@0: MouseEvent::ScreenX()
michael@0: {
michael@0:   return Event::GetScreenCoords(mPresContext, mEvent, mEvent->refPoint).x;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: MouseEvent::GetScreenY(int32_t* aScreenY)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aScreenY);
michael@0:   *aScreenY = ScreenY();
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: int32_t
michael@0: MouseEvent::ScreenY()
michael@0: {
michael@0:   return Event::GetScreenCoords(mPresContext, mEvent, mEvent->refPoint).y;
michael@0: }
michael@0: 
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: MouseEvent::GetClientX(int32_t* aClientX)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aClientX);
michael@0:   *aClientX = ClientX();
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: int32_t
michael@0: MouseEvent::ClientX()
michael@0: {
michael@0:   return Event::GetClientCoords(mPresContext, mEvent, mEvent->refPoint,
michael@0:                                 mClientPoint).x;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: MouseEvent::GetClientY(int32_t* aClientY)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aClientY);
michael@0:   *aClientY = ClientY();
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: int32_t
michael@0: MouseEvent::ClientY()
michael@0: {
michael@0:   return Event::GetClientCoords(mPresContext, mEvent, mEvent->refPoint,
michael@0:                                 mClientPoint).y;
michael@0: }
michael@0: 
michael@0: bool
michael@0: MouseEvent::AltKey()
michael@0: {
michael@0:   return mEvent->AsInputEvent()->IsAlt();
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: MouseEvent::GetAltKey(bool* aIsDown)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aIsDown);
michael@0:   *aIsDown = AltKey();
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: bool
michael@0: MouseEvent::CtrlKey()
michael@0: {
michael@0:   return mEvent->AsInputEvent()->IsControl();
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: MouseEvent::GetCtrlKey(bool* aIsDown)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aIsDown);
michael@0:   *aIsDown = CtrlKey();
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: bool
michael@0: MouseEvent::ShiftKey()
michael@0: {
michael@0:   return mEvent->AsInputEvent()->IsShift();
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: MouseEvent::GetShiftKey(bool* aIsDown)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aIsDown);
michael@0:   *aIsDown = ShiftKey();
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: bool
michael@0: MouseEvent::MetaKey()
michael@0: {
michael@0:   return mEvent->AsInputEvent()->IsMeta();
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: MouseEvent::GetMetaKey(bool* aIsDown)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aIsDown);
michael@0:   *aIsDown = MetaKey();
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: MouseEvent::GetModifierState(const nsAString& aKey,
michael@0:                                   bool* aState)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aState);
michael@0: 
michael@0:   *aState = GetModifierState(aKey);
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: float
michael@0: MouseEvent::MozPressure() const
michael@0: {
michael@0:   return mEvent->AsMouseEventBase()->pressure;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: MouseEvent::GetMozPressure(float* aPressure)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aPressure);
michael@0:   *aPressure = MozPressure();
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: uint16_t
michael@0: MouseEvent::MozInputSource() const
michael@0: {
michael@0:   return mEvent->AsMouseEventBase()->inputSource;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: MouseEvent::GetMozInputSource(uint16_t* aInputSource)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aInputSource);
michael@0:   *aInputSource = MozInputSource();
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: } // namespace dom
michael@0: } // namespace mozilla
michael@0: 
michael@0: using namespace mozilla;
michael@0: using namespace mozilla::dom;
michael@0: 
michael@0: nsresult
michael@0: NS_NewDOMMouseEvent(nsIDOMEvent** aInstancePtrResult,
michael@0:                     EventTarget* aOwner,
michael@0:                     nsPresContext* aPresContext,
michael@0:                     WidgetMouseEvent* aEvent)
michael@0: {
michael@0:   MouseEvent* it = new MouseEvent(aOwner, aPresContext, aEvent);
michael@0:   NS_ADDREF(it);
michael@0:   *aInstancePtrResult = static_cast<Event*>(it);
michael@0:   return NS_OK;
michael@0: }