gecko/dom/events/nsEventDispatcher.h
Robert O'Callahan 6a0b04292d Bug 946065. Part 5: Move content/events to dom/ and flatten away 'src' directory. r=Ms2ger
--HG--
rename : content/events/src/DOMWheelEvent.cpp => dom/events/DOMWheelEvent.cpp
rename : content/events/src/DOMWheelEvent.h => dom/events/DOMWheelEvent.h
rename : content/events/src/EventTarget.cpp => dom/events/EventTarget.cpp
rename : content/events/public/EventTarget.h => dom/events/EventTarget.h
rename : content/events/public/MutationEvent.h => dom/events/MutationEvent.h
rename : content/events/src/PointerEvent.cpp => dom/events/PointerEvent.cpp
rename : content/events/src/PointerEvent.h => dom/events/PointerEvent.h
rename : content/events/src/SpeechRecognitionError.cpp => dom/events/SpeechRecognitionError.cpp
rename : content/events/src/SpeechRecognitionError.h => dom/events/SpeechRecognitionError.h
rename : content/events/src/TextComposition.cpp => dom/events/TextComposition.cpp
rename : content/events/src/TextComposition.h => dom/events/TextComposition.h
rename : content/events/src/Touch.cpp => dom/events/Touch.cpp
rename : content/events/src/Touch.h => dom/events/Touch.h
rename : content/events/crashtests/104310-1.html => dom/events/crashtests/104310-1.html
rename : content/events/crashtests/116206-1.html => dom/events/crashtests/116206-1.html
rename : content/events/crashtests/135345-1.html => dom/events/crashtests/135345-1.html
rename : content/events/crashtests/422009-1.xhtml => dom/events/crashtests/422009-1.xhtml
rename : content/events/crashtests/457776-1.html => dom/events/crashtests/457776-1.html
rename : content/events/crashtests/496308-1.html => dom/events/crashtests/496308-1.html
rename : content/events/crashtests/682637-1.html => dom/events/crashtests/682637-1.html
rename : content/events/crashtests/crashtests.list => dom/events/crashtests/crashtests.list
rename : content/events/crashtests/eventctor-nulldictionary.html => dom/events/crashtests/eventctor-nulldictionary.html
rename : content/events/crashtests/eventctor-nullstorage.html => dom/events/crashtests/eventctor-nullstorage.html
rename : content/events/crashtests/recursive-DOMNodeInserted.html => dom/events/crashtests/recursive-DOMNodeInserted.html
rename : content/events/crashtests/recursive-onload.html => dom/events/crashtests/recursive-onload.html
rename : content/events/src/moz.build => dom/events/moz.build
rename : content/events/src/nsAsyncDOMEvent.cpp => dom/events/nsAsyncDOMEvent.cpp
rename : content/events/public/nsAsyncDOMEvent.h => dom/events/nsAsyncDOMEvent.h
rename : content/events/src/nsContentEventHandler.cpp => dom/events/nsContentEventHandler.cpp
rename : content/events/src/nsContentEventHandler.h => dom/events/nsContentEventHandler.h
rename : content/events/src/nsDOMAnimationEvent.cpp => dom/events/nsDOMAnimationEvent.cpp
rename : content/events/src/nsDOMAnimationEvent.h => dom/events/nsDOMAnimationEvent.h
rename : content/events/src/nsDOMBeforeUnloadEvent.cpp => dom/events/nsDOMBeforeUnloadEvent.cpp
rename : content/events/src/nsDOMBeforeUnloadEvent.h => dom/events/nsDOMBeforeUnloadEvent.h
rename : content/events/src/nsDOMClipboardEvent.cpp => dom/events/nsDOMClipboardEvent.cpp
rename : content/events/src/nsDOMClipboardEvent.h => dom/events/nsDOMClipboardEvent.h
rename : content/events/src/nsDOMCommandEvent.cpp => dom/events/nsDOMCommandEvent.cpp
rename : content/events/src/nsDOMCommandEvent.h => dom/events/nsDOMCommandEvent.h
rename : content/events/src/nsDOMCompositionEvent.cpp => dom/events/nsDOMCompositionEvent.cpp
rename : content/events/src/nsDOMCompositionEvent.h => dom/events/nsDOMCompositionEvent.h
rename : content/events/src/nsDOMDataContainerEvent.cpp => dom/events/nsDOMDataContainerEvent.cpp
rename : content/events/src/nsDOMDataContainerEvent.h => dom/events/nsDOMDataContainerEvent.h
rename : content/events/src/nsDOMDataTransfer.cpp => dom/events/nsDOMDataTransfer.cpp
rename : content/events/src/nsDOMDataTransfer.h => dom/events/nsDOMDataTransfer.h
rename : content/events/src/nsDOMDeviceMotionEvent.cpp => dom/events/nsDOMDeviceMotionEvent.cpp
rename : content/events/src/nsDOMDeviceMotionEvent.h => dom/events/nsDOMDeviceMotionEvent.h
rename : content/events/src/nsDOMDragEvent.cpp => dom/events/nsDOMDragEvent.cpp
rename : content/events/src/nsDOMDragEvent.h => dom/events/nsDOMDragEvent.h
rename : content/events/src/nsDOMEvent.cpp => dom/events/nsDOMEvent.cpp
rename : content/events/src/nsDOMEvent.h => dom/events/nsDOMEvent.h
rename : content/events/src/nsDOMEventTargetHelper.cpp => dom/events/nsDOMEventTargetHelper.cpp
rename : content/events/src/nsDOMEventTargetHelper.h => dom/events/nsDOMEventTargetHelper.h
rename : content/events/src/nsDOMFocusEvent.cpp => dom/events/nsDOMFocusEvent.cpp
rename : content/events/src/nsDOMFocusEvent.h => dom/events/nsDOMFocusEvent.h
rename : content/events/public/nsDOMKeyNameList.h => dom/events/nsDOMKeyNameList.h
rename : content/events/src/nsDOMKeyboardEvent.cpp => dom/events/nsDOMKeyboardEvent.cpp
rename : content/events/src/nsDOMKeyboardEvent.h => dom/events/nsDOMKeyboardEvent.h
rename : content/events/src/nsDOMMessageEvent.cpp => dom/events/nsDOMMessageEvent.cpp
rename : content/events/src/nsDOMMessageEvent.h => dom/events/nsDOMMessageEvent.h
rename : content/events/src/nsDOMMouseEvent.cpp => dom/events/nsDOMMouseEvent.cpp
rename : content/events/src/nsDOMMouseEvent.h => dom/events/nsDOMMouseEvent.h
rename : content/events/src/nsDOMMouseScrollEvent.cpp => dom/events/nsDOMMouseScrollEvent.cpp
rename : content/events/src/nsDOMMouseScrollEvent.h => dom/events/nsDOMMouseScrollEvent.h
rename : content/events/src/nsDOMMutationEvent.cpp => dom/events/nsDOMMutationEvent.cpp
rename : content/events/src/nsDOMMutationEvent.h => dom/events/nsDOMMutationEvent.h
rename : content/events/src/nsDOMNotifyAudioAvailableEvent.cpp => dom/events/nsDOMNotifyAudioAvailableEvent.cpp
rename : content/events/src/nsDOMNotifyAudioAvailableEvent.h => dom/events/nsDOMNotifyAudioAvailableEvent.h
rename : content/events/src/nsDOMNotifyPaintEvent.cpp => dom/events/nsDOMNotifyPaintEvent.cpp
rename : content/events/src/nsDOMNotifyPaintEvent.h => dom/events/nsDOMNotifyPaintEvent.h
rename : content/events/src/nsDOMScrollAreaEvent.cpp => dom/events/nsDOMScrollAreaEvent.cpp
rename : content/events/src/nsDOMScrollAreaEvent.h => dom/events/nsDOMScrollAreaEvent.h
rename : content/events/src/nsDOMSimpleGestureEvent.cpp => dom/events/nsDOMSimpleGestureEvent.cpp
rename : content/events/src/nsDOMSimpleGestureEvent.h => dom/events/nsDOMSimpleGestureEvent.h
rename : content/events/src/nsDOMTextEvent.cpp => dom/events/nsDOMTextEvent.cpp
rename : content/events/src/nsDOMTextEvent.h => dom/events/nsDOMTextEvent.h
rename : content/events/src/nsDOMTouchEvent.cpp => dom/events/nsDOMTouchEvent.cpp
rename : content/events/src/nsDOMTouchEvent.h => dom/events/nsDOMTouchEvent.h
rename : content/events/src/nsDOMTransitionEvent.cpp => dom/events/nsDOMTransitionEvent.cpp
rename : content/events/src/nsDOMTransitionEvent.h => dom/events/nsDOMTransitionEvent.h
rename : content/events/src/nsDOMUIEvent.cpp => dom/events/nsDOMUIEvent.cpp
rename : content/events/src/nsDOMUIEvent.h => dom/events/nsDOMUIEvent.h
rename : content/events/src/nsDOMXULCommandEvent.cpp => dom/events/nsDOMXULCommandEvent.cpp
rename : content/events/src/nsDOMXULCommandEvent.h => dom/events/nsDOMXULCommandEvent.h
rename : content/events/src/nsEventDispatcher.cpp => dom/events/nsEventDispatcher.cpp
rename : content/events/public/nsEventDispatcher.h => dom/events/nsEventDispatcher.h
rename : content/events/src/nsEventListenerManager.cpp => dom/events/nsEventListenerManager.cpp
rename : content/events/src/nsEventListenerManager.h => dom/events/nsEventListenerManager.h
rename : content/events/src/nsEventListenerService.cpp => dom/events/nsEventListenerService.cpp
rename : content/events/src/nsEventListenerService.h => dom/events/nsEventListenerService.h
rename : content/events/public/nsEventNameList.h => dom/events/nsEventNameList.h
rename : content/events/src/nsEventStateManager.cpp => dom/events/nsEventStateManager.cpp
rename : content/events/src/nsEventStateManager.h => dom/events/nsEventStateManager.h
rename : content/events/public/nsEventStates.h => dom/events/nsEventStates.h
rename : content/events/public/nsIEventListenerService.idl => dom/events/nsIEventListenerService.idl
rename : dom/base/nsIJSEventListener.h => dom/events/nsIJSEventListener.h
rename : content/events/src/nsIMEStateManager.cpp => dom/events/nsIMEStateManager.cpp
rename : content/events/src/nsIMEStateManager.h => dom/events/nsIMEStateManager.h
rename : content/events/public/nsIPrivateTextEvent.h => dom/events/nsIPrivateTextEvent.h
rename : content/events/public/nsIPrivateTextRange.h => dom/events/nsIPrivateTextRange.h
rename : dom/src/events/nsJSEventListener.cpp => dom/events/nsJSEventListener.cpp
rename : dom/src/events/nsJSEventListener.h => dom/events/nsJSEventListener.h
rename : content/events/src/nsPaintRequest.cpp => dom/events/nsPaintRequest.cpp
rename : content/events/src/nsPaintRequest.h => dom/events/nsPaintRequest.h
rename : content/events/src/nsPrivateTextRange.cpp => dom/events/nsPrivateTextRange.cpp
rename : content/events/src/nsPrivateTextRange.h => dom/events/nsPrivateTextRange.h
rename : content/events/public/nsVKList.h => dom/events/nsVKList.h
rename : content/events/test/bug226361_iframe.xhtml => dom/events/test/bug226361_iframe.xhtml
rename : content/events/test/bug299673.js => dom/events/test/bug299673.js
rename : content/events/test/bug322588-popup.html => dom/events/test/bug322588-popup.html
rename : content/events/test/bug415498-doc1.html => dom/events/test/bug415498-doc1.html
rename : content/events/test/bug415498-doc2.html => dom/events/test/bug415498-doc2.html
rename : content/events/test/bug426082.html => dom/events/test/bug426082.html
rename : content/events/test/bug457672.html => dom/events/test/bug457672.html
rename : content/events/test/bug591249_iframe.xul => dom/events/test/bug591249_iframe.xul
rename : content/events/test/bug602962.xul => dom/events/test/bug602962.xul
rename : content/events/test/bug656379-1.html => dom/events/test/bug656379-1.html
rename : content/events/test/chrome.ini => dom/events/test/chrome.ini
rename : content/events/test/empty.js => dom/events/test/empty.js
rename : content/events/test/file_bug679494.html => dom/events/test/file_bug679494.html
rename : content/events/test/mochitest.ini => dom/events/test/mochitest.ini
rename : content/events/test/test_addEventListenerExtraArg.html => dom/events/test/test_addEventListenerExtraArg.html
rename : content/events/test/test_all_synthetic_events.html => dom/events/test/test_all_synthetic_events.html
rename : content/events/test/test_bug226361.xhtml => dom/events/test/test_bug226361.xhtml
rename : content/events/test/test_bug238987.html => dom/events/test/test_bug238987.html
rename : content/events/test/test_bug288392.html => dom/events/test/test_bug288392.html
rename : content/events/test/test_bug299673-1.html => dom/events/test/test_bug299673-1.html
rename : content/events/test/test_bug299673-2.html => dom/events/test/test_bug299673-2.html
rename : content/events/test/test_bug322588.html => dom/events/test/test_bug322588.html
rename : content/events/test/test_bug328885.html => dom/events/test/test_bug328885.html
rename : content/events/test/test_bug336682.js => dom/events/test/test_bug336682.js
rename : content/events/test/test_bug336682_1.html => dom/events/test/test_bug336682_1.html
rename : content/events/test/test_bug336682_2.xul => dom/events/test/test_bug336682_2.xul
rename : content/events/test/test_bug367781.html => dom/events/test/test_bug367781.html
rename : content/events/test/test_bug368835.html => dom/events/test/test_bug368835.html
rename : content/events/test/test_bug379120.html => dom/events/test/test_bug379120.html
rename : content/events/test/test_bug391568.xhtml => dom/events/test/test_bug391568.xhtml
rename : content/events/test/test_bug402089.html => dom/events/test/test_bug402089.html
rename : content/events/test/test_bug405632.html => dom/events/test/test_bug405632.html
rename : content/events/test/test_bug409604.html => dom/events/test/test_bug409604.html
rename : content/events/test/test_bug412567.html => dom/events/test/test_bug412567.html
rename : content/events/test/test_bug415498.xul => dom/events/test/test_bug415498.xul
rename : content/events/test/test_bug422132.html => dom/events/test/test_bug422132.html
rename : content/events/test/test_bug426082.html => dom/events/test/test_bug426082.html
rename : content/events/test/test_bug427537.html => dom/events/test/test_bug427537.html
rename : content/events/test/test_bug428988.html => dom/events/test/test_bug428988.html
rename : content/events/test/test_bug432698.html => dom/events/test/test_bug432698.html
rename : content/events/test/test_bug443985.html => dom/events/test/test_bug443985.html
rename : content/events/test/test_bug447736.html => dom/events/test/test_bug447736.html
rename : content/events/test/test_bug448602.html => dom/events/test/test_bug448602.html
rename : content/events/test/test_bug450876.html => dom/events/test/test_bug450876.html
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rename : content/events/test/test_bug508479.html => dom/events/test/test_bug508479.html
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rename : content/events/test/test_bug545268.html => dom/events/test/test_bug545268.html
rename : content/events/test/test_bug547996-1.html => dom/events/test/test_bug547996-1.html
rename : content/events/test/test_bug547996-2.xhtml => dom/events/test/test_bug547996-2.xhtml
rename : content/events/test/test_bug556493.html => dom/events/test/test_bug556493.html
rename : content/events/test/test_bug563329.html => dom/events/test/test_bug563329.html
rename : content/events/test/test_bug574663.html => dom/events/test/test_bug574663.html
rename : content/events/test/test_bug586961.xul => dom/events/test/test_bug586961.xul
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rename : content/events/test/test_bug593959.html => dom/events/test/test_bug593959.html
rename : content/events/test/test_bug602962.xul => dom/events/test/test_bug602962.xul
rename : content/events/test/test_bug603008.html => dom/events/test/test_bug603008.html
rename : content/events/test/test_bug605242.html => dom/events/test/test_bug605242.html
rename : content/events/test/test_bug607464.html => dom/events/test/test_bug607464.html
rename : content/events/test/test_bug613634.html => dom/events/test/test_bug613634.html
rename : content/events/test/test_bug615597.html => dom/events/test/test_bug615597.html
rename : content/events/test/test_bug617528.xul => dom/events/test/test_bug617528.xul
rename : content/events/test/test_bug624127.html => dom/events/test/test_bug624127.html
rename : content/events/test/test_bug635465.html => dom/events/test/test_bug635465.html
rename : content/events/test/test_bug641477.html => dom/events/test/test_bug641477.html
rename : content/events/test/test_bug648573.html => dom/events/test/test_bug648573.html
rename : content/events/test/test_bug650493.html => dom/events/test/test_bug650493.html
rename : content/events/test/test_bug656379-1.html => dom/events/test/test_bug656379-1.html
rename : content/events/test/test_bug656379-2.html => dom/events/test/test_bug656379-2.html
rename : content/events/test/test_bug656954.html => dom/events/test/test_bug656954.html
rename : content/events/test/test_bug659071.html => dom/events/test/test_bug659071.html
rename : content/events/test/test_bug659350.html => dom/events/test/test_bug659350.html
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rename : content/events/test/test_bug742376.html => dom/events/test/test_bug742376.html
rename : content/events/test/test_bug812744.html => dom/events/test/test_bug812744.html
rename : content/events/test/test_bug822898.html => dom/events/test/test_bug822898.html
rename : content/events/test/test_bug847597.html => dom/events/test/test_bug847597.html
rename : content/events/test/test_bug855741.html => dom/events/test/test_bug855741.html
rename : content/events/test/test_bug864040.html => dom/events/test/test_bug864040.html
rename : content/events/test/test_bug930374-chrome.html => dom/events/test/test_bug930374-chrome.html
rename : content/events/test/test_bug930374-content.html => dom/events/test/test_bug930374-content.html
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rename : content/events/test/test_bug946632.html => dom/events/test/test_bug946632.html
rename : content/events/test/test_clickevent_on_input.html => dom/events/test/test_clickevent_on_input.html
rename : content/events/test/test_continuous_wheel_events.html => dom/events/test/test_continuous_wheel_events.html
rename : content/events/test/test_dblclick_explicit_original_target.html => dom/events/test/test_dblclick_explicit_original_target.html
rename : content/events/test/test_dom_keyboard_event.html => dom/events/test/test_dom_keyboard_event.html
rename : content/events/test/test_dom_mouse_event.html => dom/events/test/test_dom_mouse_event.html
rename : content/events/test/test_dom_wheel_event.html => dom/events/test/test_dom_wheel_event.html
rename : content/events/test/test_draggableprop.html => dom/events/test/test_draggableprop.html
rename : content/events/test/test_dragstart.html => dom/events/test/test_dragstart.html
rename : content/events/test/test_eventctors.html => dom/events/test/test_eventctors.html
rename : content/events/test/test_eventctors.xul => dom/events/test/test_eventctors.xul
rename : content/events/test/test_focus_disabled.html => dom/events/test/test_focus_disabled.html
rename : content/events/test/test_messageEvent.html => dom/events/test/test_messageEvent.html
rename : content/events/test/test_moz_mouse_pixel_scroll_event.html => dom/events/test/test_moz_mouse_pixel_scroll_event.html
rename : content/events/test/test_wheel_default_action.html => dom/events/test/test_wheel_default_action.html
rename : content/events/test/window_bug493251.html => dom/events/test/window_bug493251.html
rename : content/events/test/window_bug617528.xul => dom/events/test/window_bug617528.xul
rename : content/events/test/window_bug659071.html => dom/events/test/window_bug659071.html
rename : content/events/test/window_wheel_default_action.html => dom/events/test/window_wheel_default_action.html
extra : rebase_source : 5eb1db8f1791b8842ddc683e3c0ea13e4e3a933b
2014-01-10 16:03:25 +13:00

264 lines
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C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifdef MOZILLA_INTERNAL_API
#ifndef nsEventDispatcher_h___
#define nsEventDispatcher_h___
#include "mozilla/EventForwards.h"
#include "nsCOMPtr.h"
// Microsoft's API Name hackery sucks
#undef CreateEvent
class nsEventTargetChainItem;
class nsIDOMEvent;
class nsIScriptGlobalObject;
class nsPresContext;
template<class E> class nsCOMArray;
namespace mozilla {
namespace dom {
class EventTarget;
}
}
/**
* About event dispatching:
* When either nsEventDispatcher::Dispatch or
* nsEventDispatcher::DispatchDOMEvent is called an event target chain is
* created. nsEventDispatcher creates the chain by calling PreHandleEvent
* on each event target and the creation continues until either the mCanHandle
* member of the nsEventChainPreVisitor object is false or the mParentTarget
* does not point to a new target. The event target chain is created in the
* heap.
*
* If the event needs retargeting, mEventTargetAtParent must be set in
* PreHandleEvent.
*
* The capture, target and bubble phases of the event dispatch are handled
* by iterating through the event target chain. Iteration happens twice,
* first for the default event group and then for the system event group.
* While dispatching the event for the system event group PostHandleEvent
* is called right after calling event listener for the current event target.
*/
class nsEventChainVisitor {
public:
nsEventChainVisitor(nsPresContext* aPresContext,
mozilla::WidgetEvent* aEvent,
nsIDOMEvent* aDOMEvent,
nsEventStatus aEventStatus = nsEventStatus_eIgnore)
: mPresContext(aPresContext), mEvent(aEvent), mDOMEvent(aDOMEvent),
mEventStatus(aEventStatus), mItemFlags(0)
{}
/**
* The prescontext, possibly nullptr.
*/
nsPresContext* const mPresContext;
/**
* The WidgetEvent which is being dispatched. Never nullptr.
*/
mozilla::WidgetEvent* const mEvent;
/**
* The DOM Event assiciated with the mEvent. Possibly nullptr if a DOM Event
* is not (yet) created.
*/
nsIDOMEvent* mDOMEvent;
/**
* The status of the event.
* @see nsEventStatus.h
*/
nsEventStatus mEventStatus;
/**
* Bits for items in the event target chain.
* Set in PreHandleEvent() and used in PostHandleEvent().
*
* @note These bits are different for each item in the event target chain.
* It is up to the Pre/PostHandleEvent implementation to decide how to
* use these bits.
*
* @note Using uint16_t because that is used also in nsEventTargetChainItem.
*/
uint16_t mItemFlags;
/**
* Data for items in the event target chain.
* Set in PreHandleEvent() and used in PostHandleEvent().
*
* @note This data is different for each item in the event target chain.
* It is up to the Pre/PostHandleEvent implementation to decide how to
* use this.
*/
nsCOMPtr<nsISupports> mItemData;
};
class nsEventChainPreVisitor : public nsEventChainVisitor {
public:
nsEventChainPreVisitor(nsPresContext* aPresContext,
mozilla::WidgetEvent* aEvent,
nsIDOMEvent* aDOMEvent,
nsEventStatus aEventStatus,
bool aIsInAnon)
: nsEventChainVisitor(aPresContext, aEvent, aDOMEvent, aEventStatus),
mCanHandle(true), mAutomaticChromeDispatch(true),
mForceContentDispatch(false), mRelatedTargetIsInAnon(false),
mOriginalTargetIsInAnon(aIsInAnon), mWantsWillHandleEvent(false),
mMayHaveListenerManager(true), mParentTarget(nullptr),
mEventTargetAtParent(nullptr) {}
void Reset() {
mItemFlags = 0;
mItemData = nullptr;
mCanHandle = true;
mAutomaticChromeDispatch = true;
mForceContentDispatch = false;
mWantsWillHandleEvent = false;
mMayHaveListenerManager = true;
mParentTarget = nullptr;
mEventTargetAtParent = nullptr;
}
/**
* Member that must be set in PreHandleEvent by event targets. If set to false,
* indicates that this event target will not be handling the event and
* construction of the event target chain is complete. The target that sets
* mCanHandle to false is NOT included in the event target chain.
*/
bool mCanHandle;
/**
* If mCanHandle is false and mAutomaticChromeDispatch is also false
* event will not be dispatched to the chrome event handler.
*/
bool mAutomaticChromeDispatch;
/**
* If mForceContentDispatch is set to true,
* content dispatching is not disabled for this event target.
* FIXME! This is here for backward compatibility. Bug 329119
*/
bool mForceContentDispatch;
/**
* true if it is known that related target is or is a descendant of an
* element which is anonymous for events.
*/
bool mRelatedTargetIsInAnon;
/**
* true if the original target of the event is inside anonymous content.
* This is set before calling PreHandleEvent on event targets.
*/
bool mOriginalTargetIsInAnon;
/**
* Whether or not nsIDOMEventTarget::WillHandleEvent will be
* called. Default is false;
*/
bool mWantsWillHandleEvent;
/**
* If it is known that the current target doesn't have a listener manager
* when PreHandleEvent is called, set this to false.
*/
bool mMayHaveListenerManager;
/**
* Parent item in the event target chain.
*/
mozilla::dom::EventTarget* mParentTarget;
/**
* If the event needs to be retargeted, this is the event target,
* which should be used when the event is handled at mParentTarget.
*/
mozilla::dom::EventTarget* mEventTargetAtParent;
};
class nsEventChainPostVisitor : public nsEventChainVisitor {
public:
nsEventChainPostVisitor(nsEventChainVisitor& aOther)
: nsEventChainVisitor(aOther.mPresContext, aOther.mEvent, aOther.mDOMEvent,
aOther.mEventStatus)
{}
};
/**
* If an nsDispatchingCallback object is passed to Dispatch,
* its HandleEvent method is called after handling the default event group,
* before handling the system event group.
* This is used in nsPresShell.
*/
class MOZ_STACK_CLASS nsDispatchingCallback {
public:
virtual void HandleEvent(nsEventChainPostVisitor& aVisitor) = 0;
};
/**
* The generic class for event dispatching.
* Must not be used outside Gecko!
*/
class nsEventDispatcher
{
public:
/**
* aTarget should QI to EventTarget.
* If the target of aEvent is set before calling this method, the target of
* aEvent is used as the target (unless there is event
* retargeting) and the originalTarget of the DOM Event.
* aTarget is always used as the starting point for constructing the event
* target chain, no matter what the value of aEvent->target is.
* In other words, aEvent->target is only a property of the event and it has
* nothing to do with the construction of the event target chain.
* Neither aTarget nor aEvent is allowed to be nullptr.
*
* If aTargets is non-null, event target chain will be created, but
* event won't be handled. In this case aEvent->message should be
* NS_EVENT_NULL.
* @note Use this method when dispatching a WidgetEvent.
*/
static nsresult Dispatch(nsISupports* aTarget,
nsPresContext* aPresContext,
mozilla::WidgetEvent* aEvent,
nsIDOMEvent* aDOMEvent = nullptr,
nsEventStatus* aEventStatus = nullptr,
nsDispatchingCallback* aCallback = nullptr,
nsCOMArray<mozilla::dom::EventTarget>* aTargets = nullptr);
/**
* Dispatches an event.
* If aDOMEvent is not nullptr, it is used for dispatching
* (aEvent can then be nullptr) and (if aDOMEvent is not |trusted| already),
* the |trusted| flag is set based on the UniversalXPConnect capability.
* Otherwise this works like nsEventDispatcher::Dispatch.
* @note Use this method when dispatching nsIDOMEvent.
*/
static nsresult DispatchDOMEvent(nsISupports* aTarget,
mozilla::WidgetEvent* aEvent,
nsIDOMEvent* aDOMEvent,
nsPresContext* aPresContext,
nsEventStatus* aEventStatus);
/**
* Creates a DOM Event.
*/
static nsresult CreateEvent(mozilla::dom::EventTarget* aOwner,
nsPresContext* aPresContext,
mozilla::WidgetEvent* aEvent,
const nsAString& aEventType,
nsIDOMEvent** aDOMEvent);
};
#endif
#endif