1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/* -*- 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/. */
#include "mozilla/EventListenerManager.h"
#include "mozilla/dom/Event.h"
#include "mozilla/dom/EventTarget.h"
#include "mozilla/dom/EventTargetBinding.h"
#include "nsThreadUtils.h"
namespace mozilla {
namespace dom {
void
EventTarget::RemoveEventListener(const nsAString& aType,
EventListener* aListener,
const EventListenerOptionsOrBoolean& aOptions,
ErrorResult& aRv)
{
EventListenerManager* elm = GetExistingListenerManager();
if (elm) {
elm->RemoveEventListener(aType, aListener, aOptions);
}
}
EventHandlerNonNull*
EventTarget::GetEventHandler(nsIAtom* aType, const nsAString& aTypeString)
{
EventListenerManager* elm = GetExistingListenerManager();
return elm ? elm->GetEventHandler(aType, aTypeString) : nullptr;
}
void
EventTarget::SetEventHandler(const nsAString& aType,
EventHandlerNonNull* aHandler,
ErrorResult& aRv)
{
if (!StringBeginsWith(aType, NS_LITERAL_STRING("on"))) {
aRv.Throw(NS_ERROR_INVALID_ARG);
return;
}
if (NS_IsMainThread()) {
nsCOMPtr<nsIAtom> type = NS_Atomize(aType);
SetEventHandler(type, EmptyString(), aHandler);
return;
}
SetEventHandler(nullptr,
Substring(aType, 2), // Remove "on"
aHandler);
}
void
EventTarget::SetEventHandler(nsIAtom* aType, const nsAString& aTypeString,
EventHandlerNonNull* aHandler)
{
GetOrCreateListenerManager()->SetEventHandler(aType, aTypeString, aHandler);
}
bool
EventTarget::IsApzAware() const
{
EventListenerManager* elm = GetExistingListenerManager();
return elm && elm->HasApzAwareListeners();
}
bool
EventTarget::DispatchEvent(JSContext* aCx,
Event& aEvent,
ErrorResult& aRv)
{
bool result = false;
aRv = DispatchEvent(&aEvent, &result);
return !aEvent.DefaultPrevented(aCx);
}
} // namespace dom
} // namespace mozilla
|
