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
35namespace WebCore {
36
37using namespace WMLNames;
38
39WMLTimerElement::WMLTimerElement(const QualifiedName& tagName, Document* doc)
40    : WMLElement(tagName, doc)
41    , m_timer(this, &WMLTimerElement::timerFired)
42{
43}
44
45PassRefPtr<WMLTimerElement> WMLTimerElement::create(const QualifiedName& tagName, Document* document)
46{
47    return adoptRef(new WMLTimerElement(tagName, document));
48}
49
50void 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
58void 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
76void 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
87void 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
120void 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
137void WMLTimerElement::stop()
138{
139    if (m_timer.isActive())
140        m_timer.stop();
141}
142
143void 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
154String WMLTimerElement::value() const
155{
156    return parseValueSubstitutingVariableReferences(getAttribute(HTMLNames::valueAttr));
157}
158
159}
160
161#endif
162