1 /*
2 * Copyright (C) 2007, 2008, 2009, 2010 Apple, Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25 #include "config.h"
26
27 #include "QTMovieTask.h"
28
29 // Put Movies.h first so build failures here point clearly to QuickTime
30 #include <Movies.h>
31
32 #include <wtf/HashSet.h>
33 #include <wtf/StdLibExtras.h>
34 #include <wtf/Vector.h>
35
QTMovieTask()36 QTMovieTask::QTMovieTask()
37 : m_setTaskTimerDelay(0)
38 , m_stopTaskTimer(0)
39 {
40 }
41
~QTMovieTask()42 QTMovieTask::~QTMovieTask()
43 {
44 }
45
sharedTask()46 QTMovieTask* QTMovieTask::sharedTask()
47 {
48 static QTMovieTask* s_sharedTask = new QTMovieTask;
49 return s_sharedTask;
50 }
51
updateTaskTimer(double maxInterval,double minInterval)52 void QTMovieTask::updateTaskTimer(double maxInterval, double minInterval)
53 {
54 ASSERT(m_setTaskTimerDelay);
55 if (!m_setTaskTimerDelay)
56 return;
57
58 ASSERT(m_stopTaskTimer);
59 if (!m_taskList.size() && m_stopTaskTimer) {
60 m_stopTaskTimer();
61 return;
62 }
63
64 long intervalInMS;
65 OSStatus status = QTGetTimeUntilNextTask(&intervalInMS, 1000);
66 double interval = intervalInMS / 1000.0;
67 if (interval < minInterval)
68 interval = minInterval;
69 if (interval > maxInterval)
70 interval = maxInterval;
71 m_setTaskTimerDelay(interval);
72 }
73
fireTaskClients()74 void QTMovieTask::fireTaskClients()
75 {
76 Vector<QTMovieTaskClient*> clients;
77 copyToVector(m_taskList, clients);
78 for (Vector<QTMovieTaskClient*>::iterator i = clients.begin(); i != clients.end(); ++i)
79 (*i)->task();
80 }
81
addTaskClient(QTMovieTaskClient * client)82 void QTMovieTask::addTaskClient(QTMovieTaskClient* client)
83 {
84 ASSERT(client);
85 if (!client)
86 return;
87
88 m_taskList.add(client);
89 }
90
removeTaskClient(QTMovieTaskClient * client)91 void QTMovieTask::removeTaskClient(QTMovieTaskClient* client)
92 {
93 ASSERT(client);
94 if (!client)
95 return;
96
97 m_taskList.remove(client);
98 }
99
setTaskTimerFuncs(SetTaskTimerDelayFunc setTaskTimerDelay,StopTaskTimerFunc stopTaskTimer)100 void QTMovieTask::setTaskTimerFuncs(SetTaskTimerDelayFunc setTaskTimerDelay, StopTaskTimerFunc stopTaskTimer)
101 {
102 m_setTaskTimerDelay = setTaskTimerDelay;
103 m_stopTaskTimer = stopTaskTimer;
104 }
105
106