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
|
/* -*- 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/. */
//
// Eric Vaughan
// Netscape Communications
//
// See documentation in associated header file
//
#include "nsRepeatService.h"
#include "nsIServiceManager.h"
nsRepeatService* nsRepeatService::gInstance = nullptr;
nsRepeatService::nsRepeatService()
: mCallback(nullptr), mCallbackData(nullptr)
{
}
nsRepeatService::~nsRepeatService()
{
NS_ASSERTION(!mCallback && !mCallbackData, "Callback was not removed before shutdown");
}
nsRepeatService*
nsRepeatService::GetInstance()
{
if (!gInstance) {
gInstance = new nsRepeatService();
NS_IF_ADDREF(gInstance);
}
return gInstance;
}
/*static*/ void
nsRepeatService::Shutdown()
{
NS_IF_RELEASE(gInstance);
}
void nsRepeatService::Start(Callback aCallback, void* aCallbackData,
uint32_t aInitialDelay)
{
NS_PRECONDITION(aCallback != nullptr, "null ptr");
mCallback = aCallback;
mCallbackData = aCallbackData;
nsresult rv;
mRepeatTimer = do_CreateInstance("@mozilla.org/timer;1", &rv);
if (NS_SUCCEEDED(rv)) {
mRepeatTimer->InitWithCallback(this, aInitialDelay, nsITimer::TYPE_ONE_SHOT);
}
}
void nsRepeatService::Stop(Callback aCallback, void* aCallbackData)
{
if (mCallback != aCallback || mCallbackData != aCallbackData)
return;
//printf("Stopping repeat timer\n");
if (mRepeatTimer) {
mRepeatTimer->Cancel();
mRepeatTimer = nullptr;
}
mCallback = nullptr;
mCallbackData = nullptr;
}
NS_IMETHODIMP nsRepeatService::Notify(nsITimer *timer)
{
// do callback
if (mCallback)
mCallback(mCallbackData);
// start timer again.
if (mRepeatTimer) {
mRepeatTimer->InitWithCallback(this, REPEAT_DELAY, nsITimer::TYPE_ONE_SHOT);
}
return NS_OK;
}
NS_IMPL_ISUPPORTS(nsRepeatService, nsITimerCallback)
|
