1 /**
2 * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 *
19 */
20
21 #include "config.h"
22
23 #if ENABLE(WML)
24 #include "WMLTimerElement.h"
25
26 #include "Attribute.h"
27 #include "HTMLNames.h"
28 #include "WMLCardElement.h"
29 #include "WMLDocument.h"
30 #include "WMLNames.h"
31 #include "WMLPageState.h"
32 #include "WMLTemplateElement.h"
33 #include "WMLVariables.h"
34
35 namespace WebCore {
36
37 using namespace WMLNames;
38
WMLTimerElement(const QualifiedName & tagName,Document * doc)39 WMLTimerElement::WMLTimerElement(const QualifiedName& tagName, Document* doc)
40 : WMLElement(tagName, doc)
41 , m_timer(this, &WMLTimerElement::timerFired)
42 {
43 }
44
create(const QualifiedName & tagName,Document * document)45 PassRefPtr<WMLTimerElement> WMLTimerElement::create(const QualifiedName& tagName, Document* document)
46 {
47 return adoptRef(new WMLTimerElement(tagName, document));
48 }
49
parseMappedAttribute(Attribute * attr)50 void WMLTimerElement::parseMappedAttribute(Attribute* attr)
51 {
52 if (attr->name() == HTMLNames::nameAttr)
53 m_name = parseValueForbiddingVariableReferences(attr->value());
54 else
55 WMLElement::parseMappedAttribute(attr);
56 }
57
insertedIntoDocument()58 void WMLTimerElement::insertedIntoDocument()
59 {
60 WMLElement::insertedIntoDocument();
61
62 // If the value of timeout is not a positive integer, ignore it
63 if (value().toInt() <= 0)
64 return;
65
66 ContainerNode* parent = parentNode();
67 if (!parent || !parent->isWMLElement())
68 return;
69
70 if (parent->hasTagName(cardTag)) {
71 m_card = static_cast<WMLCardElement*>(parent);
72 m_card->setIntrinsicEventTimer(this);
73 }
74 }
75
removedFromDocument()76 void WMLTimerElement::removedFromDocument()
77 {
78 ContainerNode* parent = parentNode();
79 if (parent && parent->isWMLElement() && parent->hasTagName(cardTag)) {
80 m_card->setIntrinsicEventTimer(0);
81 m_card = 0;
82 }
83
84 WMLElement::removedFromDocument();
85 }
86
timerFired(Timer<WMLTimerElement> *)87 void WMLTimerElement::timerFired(Timer<WMLTimerElement>*)
88 {
89 if (!m_card)
90 return;
91
92 WMLPageState* pageState = wmlPageStateForDocument(document());
93 if (!pageState)
94 return;
95
96 String value = this->value();
97
98 // When the timer expires, set the name varialbe of timer to '0'
99 if (!m_name.isEmpty()) {
100 value = "0";
101 pageState->storeVariable(m_name, value);
102 }
103
104 WMLIntrinsicEventType eventType = WMLIntrinsicEventOnTimer;
105 WMLIntrinsicEventHandler* eventHandler = m_card->eventHandler();
106
107 bool hasIntrinsicEvent = false;
108 if (eventHandler && eventHandler->hasIntrinsicEvent(eventType))
109 hasIntrinsicEvent = true;
110 else if (m_card->templateElement()) {
111 eventHandler = m_card->templateElement()->eventHandler();
112 if (eventHandler && eventHandler->hasIntrinsicEvent(eventType))
113 hasIntrinsicEvent = true;
114 }
115
116 if (hasIntrinsicEvent)
117 eventHandler->triggerIntrinsicEvent(eventType);
118 }
119
start(int interval)120 void WMLTimerElement::start(int interval)
121 {
122 if (!m_card || m_timer.isActive())
123 return;
124
125 if (interval <= 0 && !m_name.isEmpty()) {
126 if (WMLPageState* pageState = wmlPageStateForDocument(document()))
127 interval = pageState->getVariable(m_name).toInt();
128 }
129
130 if (interval <= 0)
131 interval = value().toInt();
132
133 if (interval > 0)
134 m_timer.startOneShot(interval / 10.0f);
135 }
136
stop()137 void WMLTimerElement::stop()
138 {
139 if (m_timer.isActive())
140 m_timer.stop();
141 }
142
storeIntervalToPageState()143 void WMLTimerElement::storeIntervalToPageState()
144 {
145 if (!m_timer.isActive())
146 return;
147
148 int interval = static_cast<int>(m_timer.nextFireInterval()) * 10;
149
150 if (WMLPageState* pageState = wmlPageStateForDocument(document()))
151 pageState->storeVariable(m_name, String::number(interval));
152 }
153
value() const154 String WMLTimerElement::value() const
155 {
156 return parseValueSubstitutingVariableReferences(getAttribute(HTMLNames::valueAttr));
157 }
158
159 }
160
161 #endif
162