mirror of
https://repo.dactyloidae.xyz/Dactyloidae/UXP.git
synced 2026-10-06 15:27:30 +09:00
import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo
This commit is contained in:
Roy Tam
commit
dcd9973243
150858 changed files with 23884658 additions and 0 deletions
310
dom/events/DOMEventTargetHelper.h
Normal file
310
dom/events/DOMEventTargetHelper.h
Normal file
|
|
@ -0,0 +1,310 @@
|
|||
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
||||
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
||||
/* 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/. */
|
||||
|
||||
#ifndef mozilla_DOMEventTargetHelper_h_
|
||||
#define mozilla_DOMEventTargetHelper_h_
|
||||
|
||||
#include "nsCOMPtr.h"
|
||||
#include "nsGkAtoms.h"
|
||||
#include "nsCycleCollectionParticipant.h"
|
||||
#include "nsPIDOMWindow.h"
|
||||
#include "nsIScriptGlobalObject.h"
|
||||
#include "nsIScriptContext.h"
|
||||
#include "nsIWeakReferenceUtils.h"
|
||||
#include "MainThreadUtils.h"
|
||||
#include "mozilla/Attributes.h"
|
||||
#include "mozilla/EventListenerManager.h"
|
||||
#include "mozilla/dom/EventTarget.h"
|
||||
|
||||
struct JSCompartment;
|
||||
class nsIDocument;
|
||||
|
||||
namespace mozilla {
|
||||
|
||||
class ErrorResult;
|
||||
|
||||
#define NS_DOMEVENTTARGETHELPER_IID \
|
||||
{ 0xa28385c6, 0x9451, 0x4d7e, \
|
||||
{ 0xa3, 0xdd, 0xf4, 0xb6, 0x87, 0x2f, 0xa4, 0x76 } }
|
||||
|
||||
class DOMEventTargetHelper : public dom::EventTarget
|
||||
{
|
||||
public:
|
||||
DOMEventTargetHelper()
|
||||
: mParentObject(nullptr)
|
||||
, mOwnerWindow(nullptr)
|
||||
, mHasOrHasHadOwnerWindow(false)
|
||||
{
|
||||
}
|
||||
explicit DOMEventTargetHelper(nsPIDOMWindowInner* aWindow)
|
||||
: mParentObject(nullptr)
|
||||
, mOwnerWindow(nullptr)
|
||||
, mHasOrHasHadOwnerWindow(false)
|
||||
{
|
||||
BindToOwner(aWindow);
|
||||
}
|
||||
explicit DOMEventTargetHelper(nsIGlobalObject* aGlobalObject)
|
||||
: mParentObject(nullptr)
|
||||
, mOwnerWindow(nullptr)
|
||||
, mHasOrHasHadOwnerWindow(false)
|
||||
{
|
||||
BindToOwner(aGlobalObject);
|
||||
}
|
||||
explicit DOMEventTargetHelper(DOMEventTargetHelper* aOther)
|
||||
: mParentObject(nullptr)
|
||||
, mOwnerWindow(nullptr)
|
||||
, mHasOrHasHadOwnerWindow(false)
|
||||
{
|
||||
BindToOwner(aOther);
|
||||
}
|
||||
|
||||
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
|
||||
NS_DECL_CYCLE_COLLECTION_SKIPPABLE_SCRIPT_HOLDER_CLASS(DOMEventTargetHelper)
|
||||
|
||||
NS_DECL_NSIDOMEVENTTARGET
|
||||
|
||||
virtual EventListenerManager* GetExistingListenerManager() const override;
|
||||
virtual EventListenerManager* GetOrCreateListenerManager() override;
|
||||
|
||||
using dom::EventTarget::RemoveEventListener;
|
||||
virtual void AddEventListener(const nsAString& aType,
|
||||
dom::EventListener* aListener,
|
||||
const dom::AddEventListenerOptionsOrBoolean& aOptions,
|
||||
const dom::Nullable<bool>& aWantsUntrusted,
|
||||
ErrorResult& aRv) override;
|
||||
|
||||
NS_DECLARE_STATIC_IID_ACCESSOR(NS_DOMEVENTTARGETHELPER_IID)
|
||||
|
||||
void GetParentObject(nsIScriptGlobalObject **aParentObject)
|
||||
{
|
||||
if (mParentObject) {
|
||||
CallQueryInterface(mParentObject, aParentObject);
|
||||
} else {
|
||||
*aParentObject = nullptr;
|
||||
}
|
||||
}
|
||||
|
||||
static DOMEventTargetHelper* FromSupports(nsISupports* aSupports)
|
||||
{
|
||||
dom::EventTarget* target = static_cast<dom::EventTarget*>(aSupports);
|
||||
#ifdef DEBUG
|
||||
{
|
||||
nsCOMPtr<dom::EventTarget> target_qi = do_QueryInterface(aSupports);
|
||||
|
||||
// If this assertion fires the QI implementation for the object in
|
||||
// question doesn't use the EventTarget pointer as the
|
||||
// nsISupports pointer. That must be fixed, or we'll crash...
|
||||
NS_ASSERTION(target_qi == target, "Uh, fix QI!");
|
||||
}
|
||||
#endif
|
||||
|
||||
return static_cast<DOMEventTargetHelper*>(target);
|
||||
}
|
||||
|
||||
bool HasListenersFor(const nsAString& aType)
|
||||
{
|
||||
return mListenerManager && mListenerManager->HasListenersFor(aType);
|
||||
}
|
||||
|
||||
bool HasListenersFor(nsIAtom* aTypeWithOn)
|
||||
{
|
||||
return mListenerManager && mListenerManager->HasListenersFor(aTypeWithOn);
|
||||
}
|
||||
|
||||
nsresult SetEventHandler(nsIAtom* aType,
|
||||
JSContext* aCx,
|
||||
const JS::Value& aValue);
|
||||
using dom::EventTarget::SetEventHandler;
|
||||
void GetEventHandler(nsIAtom* aType,
|
||||
JSContext* aCx,
|
||||
JS::Value* aValue);
|
||||
using dom::EventTarget::GetEventHandler;
|
||||
virtual nsPIDOMWindowOuter* GetOwnerGlobalForBindings() override
|
||||
{
|
||||
return nsPIDOMWindowOuter::GetFromCurrentInner(GetOwner());
|
||||
}
|
||||
|
||||
nsresult CheckInnerWindowCorrectness() const
|
||||
{
|
||||
NS_ENSURE_STATE(!mHasOrHasHadOwnerWindow || mOwnerWindow);
|
||||
if (mOwnerWindow && !mOwnerWindow->IsCurrentInnerWindow()) {
|
||||
return NS_ERROR_FAILURE;
|
||||
}
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
nsPIDOMWindowInner* GetOwner() const { return mOwnerWindow; }
|
||||
// Like GetOwner, but only returns non-null if the window being returned is
|
||||
// current (in the "current document" sense of the HTML spec).
|
||||
nsPIDOMWindowInner* GetWindowIfCurrent() const;
|
||||
// Returns the document associated with this event target, if that document is
|
||||
// the current document of its browsing context. Will return null otherwise.
|
||||
nsIDocument* GetDocumentIfCurrent() const;
|
||||
void BindToOwner(nsIGlobalObject* aOwner);
|
||||
void BindToOwner(nsPIDOMWindowInner* aOwner);
|
||||
void BindToOwner(DOMEventTargetHelper* aOther);
|
||||
virtual void DisconnectFromOwner();
|
||||
nsIGlobalObject* GetParentObject() const
|
||||
{
|
||||
return GetOwnerGlobal();
|
||||
}
|
||||
virtual nsIGlobalObject* GetOwnerGlobal() const override
|
||||
{
|
||||
nsCOMPtr<nsIGlobalObject> parentObject = do_QueryReferent(mParentObject);
|
||||
return parentObject;
|
||||
}
|
||||
bool HasOrHasHadOwner() { return mHasOrHasHadOwnerWindow; }
|
||||
|
||||
virtual void EventListenerAdded(nsIAtom* aType) override;
|
||||
virtual void EventListenerRemoved(nsIAtom* aType) override;
|
||||
virtual void EventListenerWasAdded(const nsAString& aType,
|
||||
ErrorResult& aRv,
|
||||
JSCompartment* aCompartment = nullptr) {}
|
||||
virtual void EventListenerWasRemoved(const nsAString& aType,
|
||||
ErrorResult& aRv,
|
||||
JSCompartment* aCompartment = nullptr) {}
|
||||
|
||||
// Dispatch a trusted, non-cancellable and non-bubbling event to |this|.
|
||||
nsresult DispatchTrustedEvent(const nsAString& aEventName);
|
||||
protected:
|
||||
virtual ~DOMEventTargetHelper();
|
||||
|
||||
nsresult WantsUntrusted(bool* aRetVal);
|
||||
|
||||
// If this method returns true your object is kept alive until it returns
|
||||
// false. You can use this method instead using
|
||||
// NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_BEGIN macro.
|
||||
virtual bool IsCertainlyAliveForCC() const
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
RefPtr<EventListenerManager> mListenerManager;
|
||||
// Make |event| trusted and dispatch |aEvent| to |this|.
|
||||
nsresult DispatchTrustedEvent(nsIDOMEvent* aEvent);
|
||||
|
||||
virtual void LastRelease() {}
|
||||
private:
|
||||
// Inner window or sandbox.
|
||||
nsWeakPtr mParentObject;
|
||||
// mParentObject pre QI-ed and cached (inner window)
|
||||
// (it is needed for off main thread access)
|
||||
// It is obtained in BindToOwner and reset in DisconnectFromOwner.
|
||||
nsPIDOMWindowInner* MOZ_NON_OWNING_REF mOwnerWindow;
|
||||
bool mHasOrHasHadOwnerWindow;
|
||||
};
|
||||
|
||||
NS_DEFINE_STATIC_IID_ACCESSOR(DOMEventTargetHelper,
|
||||
NS_DOMEVENTTARGETHELPER_IID)
|
||||
|
||||
} // namespace mozilla
|
||||
|
||||
// XPIDL event handlers
|
||||
#define NS_IMPL_EVENT_HANDLER(_class, _event) \
|
||||
NS_IMETHODIMP _class::GetOn##_event(JSContext* aCx, \
|
||||
JS::MutableHandle<JS::Value> aValue) \
|
||||
{ \
|
||||
GetEventHandler(nsGkAtoms::on##_event, aCx, aValue.address()); \
|
||||
return NS_OK; \
|
||||
} \
|
||||
NS_IMETHODIMP _class::SetOn##_event(JSContext* aCx, \
|
||||
JS::Handle<JS::Value> aValue) \
|
||||
{ \
|
||||
return SetEventHandler(nsGkAtoms::on##_event, aCx, aValue); \
|
||||
}
|
||||
|
||||
#define NS_IMPL_FORWARD_EVENT_HANDLER(_class, _event, _baseclass) \
|
||||
NS_IMETHODIMP _class::GetOn##_event(JSContext* aCx, \
|
||||
JS::MutableHandle<JS::Value> aValue) \
|
||||
{ \
|
||||
return _baseclass::GetOn##_event(aCx, aValue); \
|
||||
} \
|
||||
NS_IMETHODIMP _class::SetOn##_event(JSContext* aCx, \
|
||||
JS::Handle<JS::Value> aValue) \
|
||||
{ \
|
||||
return _baseclass::SetOn##_event(aCx, aValue); \
|
||||
}
|
||||
|
||||
// WebIDL event handlers
|
||||
#define IMPL_EVENT_HANDLER(_event) \
|
||||
inline mozilla::dom::EventHandlerNonNull* GetOn##_event() \
|
||||
{ \
|
||||
if (NS_IsMainThread()) { \
|
||||
return GetEventHandler(nsGkAtoms::on##_event, EmptyString()); \
|
||||
} \
|
||||
return GetEventHandler(nullptr, NS_LITERAL_STRING(#_event)); \
|
||||
} \
|
||||
inline void SetOn##_event(mozilla::dom::EventHandlerNonNull* aCallback) \
|
||||
{ \
|
||||
if (NS_IsMainThread()) { \
|
||||
SetEventHandler(nsGkAtoms::on##_event, EmptyString(), aCallback); \
|
||||
} else { \
|
||||
SetEventHandler(nullptr, NS_LITERAL_STRING(#_event), aCallback); \
|
||||
} \
|
||||
}
|
||||
|
||||
/* Use this macro to declare functions that forward the behavior of this
|
||||
* interface to another object.
|
||||
* This macro doesn't forward PreHandleEvent because sometimes subclasses
|
||||
* want to override it.
|
||||
*/
|
||||
#define NS_FORWARD_NSIDOMEVENTTARGET_NOPREHANDLEEVENT(_to) \
|
||||
NS_IMETHOD AddEventListener(const nsAString & type, nsIDOMEventListener *listener, bool useCapture, bool wantsUntrusted, uint8_t _argc) { \
|
||||
return _to AddEventListener(type, listener, useCapture, wantsUntrusted, _argc); \
|
||||
} \
|
||||
NS_IMETHOD AddSystemEventListener(const nsAString & type, nsIDOMEventListener *listener, bool aUseCapture, bool aWantsUntrusted, uint8_t _argc) { \
|
||||
return _to AddSystemEventListener(type, listener, aUseCapture, aWantsUntrusted, _argc); \
|
||||
} \
|
||||
NS_IMETHOD RemoveEventListener(const nsAString & type, nsIDOMEventListener *listener, bool useCapture) { \
|
||||
return _to RemoveEventListener(type, listener, useCapture); \
|
||||
} \
|
||||
NS_IMETHOD RemoveSystemEventListener(const nsAString & type, nsIDOMEventListener *listener, bool aUseCapture) { \
|
||||
return _to RemoveSystemEventListener(type, listener, aUseCapture); \
|
||||
} \
|
||||
NS_IMETHOD DispatchEvent(nsIDOMEvent *evt, bool *_retval) { \
|
||||
return _to DispatchEvent(evt, _retval); \
|
||||
} \
|
||||
virtual mozilla::dom::EventTarget* GetTargetForDOMEvent() { \
|
||||
return _to GetTargetForDOMEvent(); \
|
||||
} \
|
||||
virtual mozilla::dom::EventTarget* GetTargetForEventTargetChain() { \
|
||||
return _to GetTargetForEventTargetChain(); \
|
||||
} \
|
||||
virtual nsresult WillHandleEvent( \
|
||||
mozilla::EventChainPostVisitor & aVisitor) { \
|
||||
return _to WillHandleEvent(aVisitor); \
|
||||
} \
|
||||
virtual nsresult PostHandleEvent( \
|
||||
mozilla::EventChainPostVisitor & aVisitor) { \
|
||||
return _to PostHandleEvent(aVisitor); \
|
||||
} \
|
||||
virtual nsresult DispatchDOMEvent(mozilla::WidgetEvent* aEvent, nsIDOMEvent* aDOMEvent, nsPresContext* aPresContext, nsEventStatus* aEventStatus) { \
|
||||
return _to DispatchDOMEvent(aEvent, aDOMEvent, aPresContext, aEventStatus); \
|
||||
} \
|
||||
virtual mozilla::EventListenerManager* GetOrCreateListenerManager() { \
|
||||
return _to GetOrCreateListenerManager(); \
|
||||
} \
|
||||
virtual mozilla::EventListenerManager* GetExistingListenerManager() const { \
|
||||
return _to GetExistingListenerManager(); \
|
||||
} \
|
||||
virtual nsIScriptContext * GetContextForEventHandlers(nsresult *aRv) { \
|
||||
return _to GetContextForEventHandlers(aRv); \
|
||||
}
|
||||
|
||||
#define NS_REALLY_FORWARD_NSIDOMEVENTTARGET(_class) \
|
||||
using _class::AddEventListener; \
|
||||
using _class::RemoveEventListener; \
|
||||
NS_FORWARD_NSIDOMEVENTTARGET(_class::) \
|
||||
virtual mozilla::EventListenerManager* \
|
||||
GetOrCreateListenerManager() override { \
|
||||
return _class::GetOrCreateListenerManager(); \
|
||||
} \
|
||||
virtual mozilla::EventListenerManager* \
|
||||
GetExistingListenerManager() const override { \
|
||||
return _class::GetExistingListenerManager(); \
|
||||
}
|
||||
|
||||
#endif // mozilla_DOMEventTargetHelper_h_
|
||||
Loading…
Add table
Add a link
Reference in a new issue