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
80
81
82
83
84
85
86
87
88
89
90
91
|
/* -*- Mode: C++; tab-width: 8; 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/. */
#include "DOMCursor.h"
#include "mozilla/dom/DOMCursorBinding.h"
namespace mozilla {
namespace dom {
NS_IMPL_CYCLE_COLLECTION_INHERITED(DOMCursor, DOMRequest,
mCallback)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(DOMCursor)
NS_INTERFACE_MAP_ENTRY(nsIDOMDOMCursor)
NS_INTERFACE_MAP_END_INHERITING(DOMRequest)
NS_IMPL_ADDREF_INHERITED(DOMCursor, DOMRequest)
NS_IMPL_RELEASE_INHERITED(DOMCursor, DOMRequest)
DOMCursor::DOMCursor(nsPIDOMWindowInner* aWindow, nsICursorContinueCallback* aCallback)
: DOMRequest(aWindow)
, mCallback(aCallback)
, mFinished(false)
{
}
DOMCursor::DOMCursor(nsIGlobalObject* aGlobal, nsICursorContinueCallback* aCallback)
: DOMRequest(aGlobal)
, mCallback(aCallback)
, mFinished(false)
{
}
void
DOMCursor::Reset()
{
MOZ_ASSERT(!mFinished);
// Reset the request state so we can FireSuccess() again.
mResult.setUndefined();
mDone = false;
}
void
DOMCursor::FireDone()
{
Reset();
mFinished = true;
FireSuccess(JS::UndefinedHandleValue);
}
NS_IMETHODIMP
DOMCursor::GetDone(bool *aDone)
{
*aDone = Done();
return NS_OK;
}
NS_IMETHODIMP
DOMCursor::Continue()
{
ErrorResult rv;
Continue(rv);
return rv.StealNSResult();
}
void
DOMCursor::Continue(ErrorResult& aRv)
{
MOZ_ASSERT(mCallback, "If you're creating your own cursor class with no callback, you should override Continue()");
// We need to have a result here because we must be in a 'success' state.
if (mResult.isUndefined()) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return;
}
Reset();
mCallback->HandleContinue();
}
/* virtual */ JSObject*
DOMCursor::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return DOMCursorBinding::Wrap(aCx, this, aGivenProto);
}
} // namespace dom
} // namespace mozilla
|
