2015-05-03 22:32:37 +03:00
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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2012-05-21 15:12:37 +04:00
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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2014-03-17 10:56:50 +04:00
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#include "EventListenerService.h"
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2013-09-25 15:21:22 +04:00
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#include "mozilla/BasicEvents.h"
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2014-03-18 08:48:21 +04:00
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#include "mozilla/EventDispatcher.h"
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2014-03-17 10:56:53 +04:00
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#include "mozilla/EventListenerManager.h"
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2014-04-02 06:00:45 +04:00
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#include "mozilla/JSEventHandler.h"
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2013-08-28 02:10:28 +04:00
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#include "mozilla/Maybe.h"
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2018-04-11 17:27:01 +03:00
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#include "mozilla/dom/EventListenerBinding.h"
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#include "mozilla/dom/ScriptSettings.h"
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2017-09-25 09:38:04 +03:00
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#include "nsArrayUtils.h"
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2014-03-17 10:56:50 +04:00
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#include "nsCOMArray.h"
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#include "nsIXPConnect.h"
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#include "nsJSUtils.h"
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#include "nsMemory.h"
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2013-08-30 01:18:25 +04:00
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#include "nsServiceManagerUtils.h"
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2015-04-28 23:10:05 +03:00
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#include "nsArray.h"
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#include "nsThreadUtils.h"
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2009-10-16 12:57:32 +04:00
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2014-03-17 10:56:50 +04:00
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namespace mozilla {
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2009-10-16 12:57:32 +04:00
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2014-03-17 10:56:50 +04:00
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using namespace dom;
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2010-01-12 16:08:43 +03:00
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2015-07-17 18:07:37 +03:00
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/******************************************************************************
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* mozilla::EventListenerChange
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******************************************************************************/
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NS_IMPL_ISUPPORTS(EventListenerChange, nsIEventListenerChange)
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EventListenerChange::~EventListenerChange()
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{
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}
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2018-04-20 07:49:30 +03:00
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EventListenerChange::EventListenerChange(EventTarget* aTarget) :
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2015-07-17 18:07:37 +03:00
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mTarget(aTarget)
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{
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}
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void
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2017-10-03 01:05:19 +03:00
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EventListenerChange::AddChangedListenerName(nsAtom* aEventName)
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2015-07-17 18:07:37 +03:00
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{
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2017-09-26 01:33:21 +03:00
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mChangedListenerNames.AppendElement(aEventName);
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2015-07-17 18:07:37 +03:00
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}
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NS_IMETHODIMP
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2018-04-20 07:49:30 +03:00
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EventListenerChange::GetTarget(EventTarget** aTarget)
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2015-07-17 18:07:37 +03:00
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{
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NS_ENSURE_ARG_POINTER(aTarget);
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NS_ADDREF(*aTarget = mTarget);
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return NS_OK;
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}
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NS_IMETHODIMP
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2017-09-25 09:38:04 +03:00
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EventListenerChange::GetCountOfEventListenerChangesAffectingAccessibility(
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uint32_t* aCount)
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2015-07-17 18:07:37 +03:00
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{
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2017-09-25 09:38:04 +03:00
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*aCount = 0;
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2017-09-26 01:33:21 +03:00
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size_t length = mChangedListenerNames.Length();
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2017-09-25 09:38:04 +03:00
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for (size_t i = 0; i < length; i++) {
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2017-10-03 01:05:19 +03:00
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RefPtr<nsAtom> listenerName = mChangedListenerNames[i];
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2017-09-25 09:38:04 +03:00
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// These are the event listener changes which may make an element
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// accessible or inaccessible.
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if (listenerName == nsGkAtoms::onclick ||
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listenerName == nsGkAtoms::onmousedown ||
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listenerName == nsGkAtoms::onmouseup) {
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*aCount += 1;
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}
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}
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2015-07-17 18:07:37 +03:00
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return NS_OK;
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}
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2014-03-17 10:56:50 +04:00
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/******************************************************************************
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* mozilla::EventListenerInfo
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******************************************************************************/
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2018-04-12 07:03:44 +03:00
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EventListenerInfo::EventListenerInfo(const nsAString& aType,
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JS::Handle<JSObject*> aScriptedListener,
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2018-08-07 15:06:44 +03:00
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JS::Handle<JSObject*> aScriptedListenerGlobal,
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2018-04-12 07:03:44 +03:00
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bool aCapturing,
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bool aAllowsUntrusted,
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bool aInSystemEventGroup)
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: mType(aType)
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, mScriptedListener(aScriptedListener)
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2018-08-07 15:06:44 +03:00
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, mScriptedListenerGlobal(aScriptedListenerGlobal)
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2018-04-12 07:03:44 +03:00
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, mCapturing(aCapturing)
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, mAllowsUntrusted(aAllowsUntrusted)
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, mInSystemEventGroup(aInSystemEventGroup)
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{
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2018-08-07 15:06:44 +03:00
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if (aScriptedListener) {
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MOZ_ASSERT(JS_IsGlobalObject(aScriptedListenerGlobal));
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js::AssertSameCompartment(aScriptedListener, aScriptedListenerGlobal);
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}
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2018-04-12 07:03:44 +03:00
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HoldJSObjects(this);
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}
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EventListenerInfo::~EventListenerInfo()
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{
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DropJSObjects(this);
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}
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NS_IMPL_CYCLE_COLLECTION_CLASS(EventListenerInfo)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(EventListenerInfo)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(EventListenerInfo)
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tmp->mScriptedListener = nullptr;
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2018-08-07 15:06:44 +03:00
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tmp->mScriptedListenerGlobal = nullptr;
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2018-04-12 07:03:44 +03:00
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(EventListenerInfo)
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NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mScriptedListener)
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2018-08-07 15:06:44 +03:00
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NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mScriptedListenerGlobal)
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2018-04-12 07:03:44 +03:00
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NS_IMPL_CYCLE_COLLECTION_TRACE_END
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2014-03-17 10:56:50 +04:00
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(EventListenerInfo)
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2009-10-16 12:57:32 +04:00
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NS_INTERFACE_MAP_ENTRY(nsIEventListenerInfo)
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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2014-03-17 10:56:50 +04:00
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NS_IMPL_CYCLE_COLLECTING_ADDREF(EventListenerInfo)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(EventListenerInfo)
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2009-10-16 12:57:32 +04:00
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NS_IMETHODIMP
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2014-03-17 10:56:50 +04:00
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EventListenerInfo::GetType(nsAString& aType)
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2009-10-16 12:57:32 +04:00
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{
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aType = mType;
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return NS_OK;
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}
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NS_IMETHODIMP
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2014-03-17 10:56:50 +04:00
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EventListenerInfo::GetCapturing(bool* aCapturing)
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2009-10-16 12:57:32 +04:00
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{
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*aCapturing = mCapturing;
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return NS_OK;
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}
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NS_IMETHODIMP
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2014-03-17 10:56:50 +04:00
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EventListenerInfo::GetAllowsUntrusted(bool* aAllowsUntrusted)
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2009-10-16 12:57:32 +04:00
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{
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*aAllowsUntrusted = mAllowsUntrusted;
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return NS_OK;
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}
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NS_IMETHODIMP
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2014-03-17 10:56:50 +04:00
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EventListenerInfo::GetInSystemEventGroup(bool* aInSystemEventGroup)
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2009-10-16 12:57:32 +04:00
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{
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*aInSystemEventGroup = mInSystemEventGroup;
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return NS_OK;
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}
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2013-04-02 01:17:56 +04:00
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NS_IMETHODIMP
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2014-03-17 10:56:50 +04:00
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EventListenerInfo::GetListenerObject(JSContext* aCx,
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JS::MutableHandle<JS::Value> aObject)
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2013-04-02 01:17:56 +04:00
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{
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2018-08-07 15:06:44 +03:00
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Maybe<JSAutoRealm> ar;
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2018-05-16 11:53:16 +03:00
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GetJSVal(aCx, ar, aObject);
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2013-04-02 01:17:56 +04:00
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return NS_OK;
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}
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2014-03-17 10:56:50 +04:00
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/******************************************************************************
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* mozilla::EventListenerService
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******************************************************************************/
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2014-04-27 11:06:00 +04:00
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NS_IMPL_ISUPPORTS(EventListenerService, nsIEventListenerService)
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2009-10-16 12:57:32 +04:00
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2011-09-29 10:19:26 +04:00
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bool
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2014-03-17 10:56:50 +04:00
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EventListenerInfo::GetJSVal(JSContext* aCx,
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2018-08-07 15:06:44 +03:00
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Maybe<JSAutoRealm>& aAr,
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2014-03-17 10:56:50 +04:00
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JS::MutableHandle<JS::Value> aJSVal)
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2009-10-16 12:57:32 +04:00
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{
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2018-04-12 07:03:44 +03:00
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if (mScriptedListener) {
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aJSVal.setObject(*mScriptedListener);
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2018-08-07 15:06:44 +03:00
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aAr.emplace(aCx, mScriptedListenerGlobal);
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2011-10-10 14:38:14 +04:00
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return true;
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2009-10-17 18:40:44 +04:00
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}
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2018-04-12 07:03:44 +03:00
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aJSVal.setNull();
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2011-10-10 14:38:14 +04:00
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return false;
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2009-10-17 18:40:44 +04:00
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}
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NS_IMETHODIMP
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2014-03-17 10:56:50 +04:00
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EventListenerInfo::ToSource(nsAString& aResult)
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2009-10-17 18:40:44 +04:00
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{
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2011-10-17 18:59:28 +04:00
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aResult.SetIsVoid(true);
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2009-10-17 18:40:44 +04:00
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2013-05-06 17:04:17 +04:00
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AutoSafeJSContext cx;
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2018-08-07 15:06:44 +03:00
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Maybe<JSAutoRealm> ar;
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2014-01-23 23:49:40 +04:00
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JS::Rooted<JS::Value> v(cx);
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2018-05-16 11:53:16 +03:00
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if (GetJSVal(cx, ar, &v)) {
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2013-05-22 20:05:28 +04:00
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JSString* str = JS_ValueToSource(cx, v);
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if (str) {
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2014-07-05 19:30:54 +04:00
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nsAutoJSString autoStr;
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if (autoStr.init(cx, str)) {
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aResult.Assign(autoStr);
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2009-10-16 12:57:32 +04:00
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}
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}
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}
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2009-10-17 18:40:44 +04:00
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return NS_OK;
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}
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2015-04-28 23:10:05 +03:00
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EventListenerService*
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EventListenerService::sInstance = nullptr;
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EventListenerService::EventListenerService()
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{
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MOZ_ASSERT(!sInstance);
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sInstance = this;
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}
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EventListenerService::~EventListenerService()
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{
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MOZ_ASSERT(sInstance == this);
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sInstance = nullptr;
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}
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2009-10-16 12:57:32 +04:00
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NS_IMETHODIMP
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2018-04-20 07:49:30 +03:00
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EventListenerService::GetListenerInfoFor(EventTarget* aEventTarget,
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2014-03-17 10:56:50 +04:00
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uint32_t* aCount,
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nsIEventListenerInfo*** aOutArray)
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2009-10-16 12:57:32 +04:00
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{
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2011-10-10 14:38:14 +04:00
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NS_ENSURE_ARG_POINTER(aEventTarget);
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2009-10-16 12:57:32 +04:00
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*aCount = 0;
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2012-07-30 18:20:58 +04:00
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*aOutArray = nullptr;
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2009-10-16 12:57:32 +04:00
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nsCOMArray<nsIEventListenerInfo> listenerInfos;
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2013-10-23 03:32:04 +04:00
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2018-04-20 07:49:30 +03:00
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EventListenerManager* elm = aEventTarget->GetExistingListenerManager();
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2011-06-24 06:18:01 +04:00
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if (elm) {
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elm->GetListenerInfo(&listenerInfos);
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2009-10-16 12:57:32 +04:00
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}
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2012-08-22 19:56:38 +04:00
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int32_t count = listenerInfos.Count();
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2009-10-16 12:57:32 +04:00
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if (count == 0) {
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return NS_OK;
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}
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2017-02-15 18:06:39 +03:00
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listenerInfos.Forget(aOutArray);
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2009-10-16 12:57:32 +04:00
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*aCount = count;
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return NS_OK;
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}
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NS_IMETHODIMP
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2018-04-20 07:49:30 +03:00
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EventListenerService::GetEventTargetChainFor(EventTarget* aEventTarget,
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2016-09-13 12:29:08 +03:00
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bool aComposed,
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2014-03-17 10:56:50 +04:00
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uint32_t* aCount,
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2018-04-20 07:49:30 +03:00
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EventTarget*** aOutArray)
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2009-10-16 12:57:32 +04:00
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{
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*aCount = 0;
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2012-07-30 18:20:58 +04:00
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*aOutArray = nullptr;
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2011-06-24 06:18:01 +04:00
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NS_ENSURE_ARG(aEventTarget);
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2015-08-29 02:58:26 +03:00
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WidgetEvent event(true, eVoidEvent);
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2016-09-13 12:29:08 +03:00
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event.SetComposed(aComposed);
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2015-02-11 00:28:07 +03:00
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nsTArray<EventTarget*> targets;
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2014-03-18 08:48:21 +04:00
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nsresult rv = EventDispatcher::Dispatch(aEventTarget, nullptr, &event,
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nullptr, nullptr, nullptr, &targets);
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2009-10-16 12:57:32 +04:00
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NS_ENSURE_SUCCESS(rv, rv);
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2015-02-11 00:28:07 +03:00
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int32_t count = targets.Length();
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2009-10-16 12:57:32 +04:00
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if (count == 0) {
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return NS_OK;
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}
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*aOutArray =
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2018-04-20 07:49:30 +03:00
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static_cast<EventTarget**>(
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moz_xmalloc(sizeof(EventTarget*) * count));
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2009-10-16 12:57:32 +04:00
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NS_ENSURE_TRUE(*aOutArray, NS_ERROR_OUT_OF_MEMORY);
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2012-08-22 19:56:38 +04:00
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for (int32_t i = 0; i < count; ++i) {
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2011-06-24 06:18:01 +04:00
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NS_ADDREF((*aOutArray)[i] = targets[i]);
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2009-10-16 12:57:32 +04:00
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}
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*aCount = count;
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return NS_OK;
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}
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2011-06-24 06:18:02 +04:00
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NS_IMETHODIMP
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2018-04-20 07:49:30 +03:00
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EventListenerService::HasListenersFor(EventTarget* aEventTarget,
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2014-03-17 10:56:50 +04:00
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const nsAString& aType,
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bool* aRetVal)
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2011-06-24 06:18:02 +04:00
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{
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2018-04-20 07:49:30 +03:00
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NS_ENSURE_TRUE(aEventTarget, NS_ERROR_UNEXPECTED);
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2013-10-23 03:32:04 +04:00
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2018-04-20 07:49:30 +03:00
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EventListenerManager* elm = aEventTarget->GetExistingListenerManager();
|
2011-06-24 06:18:02 +04:00
|
|
|
*aRetVal = elm && elm->HasListenersFor(aType);
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
2018-04-11 17:27:01 +03:00
|
|
|
static already_AddRefed<EventListener>
|
|
|
|
ToEventListener(JSContext* aCx, JS::Handle<JS::Value> aValue)
|
|
|
|
{
|
|
|
|
if (NS_WARN_IF(!aValue.isObject())) {
|
|
|
|
return nullptr;
|
|
|
|
}
|
|
|
|
|
|
|
|
JS::Rooted<JSObject*> obj(aCx, &aValue.toObject());
|
2018-08-04 00:11:39 +03:00
|
|
|
JS::Rooted<JSObject*> global(aCx, JS::CurrentGlobalOrNull(aCx));
|
2018-04-11 17:27:01 +03:00
|
|
|
RefPtr<EventListener> listener =
|
2018-08-04 00:11:39 +03:00
|
|
|
new EventListener(aCx, obj, global, GetIncumbentGlobal());
|
2018-04-11 17:27:01 +03:00
|
|
|
return listener.forget();
|
|
|
|
}
|
|
|
|
|
2010-06-10 05:16:58 +04:00
|
|
|
NS_IMETHODIMP
|
2018-04-20 07:49:30 +03:00
|
|
|
EventListenerService::AddSystemEventListener(EventTarget *aTarget,
|
2014-03-17 10:56:50 +04:00
|
|
|
const nsAString& aType,
|
2018-04-11 17:27:01 +03:00
|
|
|
JS::Handle<JS::Value> aListener,
|
|
|
|
bool aUseCapture,
|
|
|
|
JSContext* aCx)
|
2010-06-10 05:16:58 +04:00
|
|
|
{
|
2018-04-28 22:50:58 +03:00
|
|
|
MOZ_ASSERT(aTarget, "Missing target");
|
2011-06-24 06:18:02 +04:00
|
|
|
|
2018-04-20 07:49:30 +03:00
|
|
|
NS_ENSURE_TRUE(aTarget, NS_ERROR_UNEXPECTED);
|
2013-10-23 03:32:04 +04:00
|
|
|
|
2018-04-11 17:27:01 +03:00
|
|
|
RefPtr<EventListener> listener = ToEventListener(aCx, aListener);
|
|
|
|
if (!listener) {
|
|
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
}
|
|
|
|
|
2018-04-20 07:49:30 +03:00
|
|
|
EventListenerManager* manager = aTarget->GetOrCreateListenerManager();
|
2011-06-24 06:18:02 +04:00
|
|
|
NS_ENSURE_STATE(manager);
|
|
|
|
|
2012-12-16 05:26:05 +04:00
|
|
|
EventListenerFlags flags =
|
|
|
|
aUseCapture ? TrustedEventsAtSystemGroupCapture() :
|
|
|
|
TrustedEventsAtSystemGroupBubble();
|
2018-04-11 17:27:01 +03:00
|
|
|
manager->AddEventListenerByType(listener, aType, flags);
|
2011-08-18 13:45:00 +04:00
|
|
|
return NS_OK;
|
2011-06-24 06:18:02 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
2018-04-20 07:49:30 +03:00
|
|
|
EventListenerService::RemoveSystemEventListener(EventTarget *aTarget,
|
2014-03-17 10:56:50 +04:00
|
|
|
const nsAString& aType,
|
2018-04-11 17:27:01 +03:00
|
|
|
JS::Handle<JS::Value> aListener,
|
|
|
|
bool aUseCapture,
|
|
|
|
JSContext* aCx)
|
2011-06-24 06:18:02 +04:00
|
|
|
{
|
2018-04-28 22:50:58 +03:00
|
|
|
MOZ_ASSERT(aTarget, "Missing target");
|
2011-06-24 06:18:02 +04:00
|
|
|
|
2018-04-20 07:49:30 +03:00
|
|
|
NS_ENSURE_TRUE(aTarget, NS_ERROR_UNEXPECTED);
|
2013-10-23 03:32:04 +04:00
|
|
|
|
2018-04-11 17:27:01 +03:00
|
|
|
RefPtr<EventListener> listener = ToEventListener(aCx, aListener);
|
|
|
|
if (!listener) {
|
|
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
}
|
|
|
|
|
2018-04-20 07:49:30 +03:00
|
|
|
EventListenerManager* manager = aTarget->GetExistingListenerManager();
|
2011-06-24 06:18:02 +04:00
|
|
|
if (manager) {
|
2012-12-16 05:26:05 +04:00
|
|
|
EventListenerFlags flags =
|
|
|
|
aUseCapture ? TrustedEventsAtSystemGroupCapture() :
|
|
|
|
TrustedEventsAtSystemGroupBubble();
|
2018-04-11 17:27:01 +03:00
|
|
|
manager->RemoveEventListenerByType(listener, aType, flags);
|
2011-06-24 06:18:02 +04:00
|
|
|
}
|
|
|
|
|
2010-06-10 05:16:58 +04:00
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
2012-11-01 16:42:29 +04:00
|
|
|
NS_IMETHODIMP
|
2018-04-20 07:49:30 +03:00
|
|
|
EventListenerService::AddListenerForAllEvents(EventTarget* aTarget,
|
2018-04-11 17:27:01 +03:00
|
|
|
JS::Handle<JS::Value> aListener,
|
2014-03-17 10:56:50 +04:00
|
|
|
bool aUseCapture,
|
|
|
|
bool aWantsUntrusted,
|
2018-04-11 17:27:01 +03:00
|
|
|
bool aSystemEventGroup,
|
|
|
|
JSContext* aCx)
|
2012-11-01 16:42:29 +04:00
|
|
|
{
|
2018-04-11 17:27:01 +03:00
|
|
|
NS_ENSURE_STATE(aTarget);
|
2013-10-23 03:32:04 +04:00
|
|
|
|
2018-04-11 17:27:01 +03:00
|
|
|
RefPtr<EventListener> listener = ToEventListener(aCx, aListener);
|
|
|
|
if (!listener) {
|
|
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
}
|
|
|
|
|
2018-04-20 07:49:30 +03:00
|
|
|
EventListenerManager* manager = aTarget->GetOrCreateListenerManager();
|
2012-11-01 16:42:29 +04:00
|
|
|
NS_ENSURE_STATE(manager);
|
2018-04-11 17:27:01 +03:00
|
|
|
manager->AddListenerForAllEvents(listener, aUseCapture, aWantsUntrusted,
|
|
|
|
aSystemEventGroup);
|
2012-11-01 16:42:29 +04:00
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
2018-04-20 07:49:30 +03:00
|
|
|
EventListenerService::RemoveListenerForAllEvents(EventTarget* aTarget,
|
2018-04-11 17:27:01 +03:00
|
|
|
JS::Handle<JS::Value> aListener,
|
2014-03-17 10:56:50 +04:00
|
|
|
bool aUseCapture,
|
2018-04-11 17:27:01 +03:00
|
|
|
bool aSystemEventGroup,
|
|
|
|
JSContext* aCx)
|
2012-11-01 16:42:29 +04:00
|
|
|
{
|
2018-04-11 17:27:01 +03:00
|
|
|
NS_ENSURE_STATE(aTarget);
|
2013-10-23 03:32:04 +04:00
|
|
|
|
2018-04-11 17:27:01 +03:00
|
|
|
RefPtr<EventListener> listener = ToEventListener(aCx, aListener);
|
|
|
|
if (!listener) {
|
|
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
}
|
|
|
|
|
2018-04-20 07:49:30 +03:00
|
|
|
EventListenerManager* manager = aTarget->GetExistingListenerManager();
|
2012-11-01 16:42:29 +04:00
|
|
|
if (manager) {
|
2018-04-11 17:27:01 +03:00
|
|
|
manager->RemoveListenerForAllEvents(listener, aUseCapture, aSystemEventGroup);
|
2012-11-01 16:42:29 +04:00
|
|
|
}
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
2015-04-28 23:10:05 +03:00
|
|
|
NS_IMETHODIMP
|
|
|
|
EventListenerService::AddListenerChangeListener(nsIListenerChangeListener* aListener)
|
|
|
|
{
|
|
|
|
if (!mChangeListeners.Contains(aListener)) {
|
|
|
|
mChangeListeners.AppendElement(aListener);
|
|
|
|
}
|
|
|
|
return NS_OK;
|
|
|
|
};
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
|
|
EventListenerService::RemoveListenerChangeListener(nsIListenerChangeListener* aListener)
|
|
|
|
{
|
|
|
|
mChangeListeners.RemoveElement(aListener);
|
|
|
|
return NS_OK;
|
|
|
|
};
|
|
|
|
|
|
|
|
void
|
2015-07-17 18:07:37 +03:00
|
|
|
EventListenerService::NotifyAboutMainThreadListenerChangeInternal(dom::EventTarget* aTarget,
|
2017-10-03 01:05:19 +03:00
|
|
|
nsAtom* aName)
|
2015-04-28 23:10:05 +03:00
|
|
|
{
|
|
|
|
MOZ_ASSERT(NS_IsMainThread());
|
2017-03-16 03:11:50 +03:00
|
|
|
MOZ_ASSERT(aTarget);
|
2015-04-28 23:10:05 +03:00
|
|
|
if (mChangeListeners.IsEmpty()) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!mPendingListenerChanges) {
|
|
|
|
mPendingListenerChanges = nsArrayBase::Create();
|
2017-03-16 03:11:50 +03:00
|
|
|
nsCOMPtr<nsIRunnable> runnable =
|
|
|
|
NewRunnableMethod("EventListenerService::NotifyPendingChanges",
|
|
|
|
this, &EventListenerService::NotifyPendingChanges);
|
|
|
|
if (nsCOMPtr<nsIGlobalObject> global = aTarget->GetOwnerGlobal()) {
|
2017-07-26 11:13:35 +03:00
|
|
|
global->Dispatch(TaskCategory::Other, runnable.forget());
|
2017-03-16 03:11:50 +03:00
|
|
|
} else if (nsCOMPtr<nsINode> node = do_QueryInterface(aTarget)) {
|
2017-07-26 11:13:35 +03:00
|
|
|
node->OwnerDoc()->Dispatch(TaskCategory::Other, runnable.forget());
|
2017-03-16 03:11:50 +03:00
|
|
|
} else {
|
|
|
|
NS_DispatchToCurrentThread(runnable);
|
|
|
|
}
|
2015-04-28 23:10:05 +03:00
|
|
|
}
|
|
|
|
|
2017-06-14 18:27:25 +03:00
|
|
|
RefPtr<EventListenerChange> changes =
|
|
|
|
mPendingListenerChangesSet.LookupForAdd(aTarget).OrInsert(
|
|
|
|
[this, aTarget] () {
|
|
|
|
EventListenerChange* c = new EventListenerChange(aTarget);
|
2017-10-21 17:53:02 +03:00
|
|
|
mPendingListenerChanges->AppendElement(c);
|
2017-06-14 18:27:25 +03:00
|
|
|
return c;
|
|
|
|
});
|
2015-07-17 18:07:37 +03:00
|
|
|
changes->AddChangedListenerName(aName);
|
2015-04-28 23:10:05 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
EventListenerService::NotifyPendingChanges()
|
|
|
|
{
|
|
|
|
nsCOMPtr<nsIMutableArray> changes;
|
|
|
|
mPendingListenerChanges.swap(changes);
|
|
|
|
mPendingListenerChangesSet.Clear();
|
|
|
|
|
|
|
|
nsTObserverArray<nsCOMPtr<nsIListenerChangeListener>>::EndLimitedIterator
|
|
|
|
iter(mChangeListeners);
|
|
|
|
while (iter.HasMore()) {
|
|
|
|
nsCOMPtr<nsIListenerChangeListener> listener = iter.GetNext();
|
|
|
|
listener->ListenersChanged(changes);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2014-03-17 10:56:50 +04:00
|
|
|
} // namespace mozilla
|
|
|
|
|
2009-10-16 12:57:32 +04:00
|
|
|
nsresult
|
|
|
|
NS_NewEventListenerService(nsIEventListenerService** aResult)
|
|
|
|
{
|
2014-03-17 10:56:50 +04:00
|
|
|
*aResult = new mozilla::EventListenerService();
|
2009-10-16 12:57:32 +04:00
|
|
|
NS_ADDREF(*aResult);
|
|
|
|
return NS_OK;
|
|
|
|
}
|