1 /**
2 * Copyright (C) 2008, 2009 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 "WMLDoElement.h"
25
26 #include "Attribute.h"
27 #include "BackForwardController.h"
28 #include "Event.h"
29 #include "EventNames.h"
30 #include "HTMLNames.h"
31 #include "KeyboardEvent.h"
32 #include "Page.h"
33 #include "RenderButton.h"
34 #include "WMLCardElement.h"
35 #include "WMLDocument.h"
36 #include "WMLNames.h"
37 #include "WMLPageState.h"
38 #include "WMLTaskElement.h"
39 #include "WMLTimerElement.h"
40 #include "WMLVariables.h"
41
42 namespace WebCore {
43
44 using namespace WMLNames;
45
WMLDoElement(const QualifiedName & tagName,Document * doc)46 WMLDoElement::WMLDoElement(const QualifiedName& tagName, Document* doc)
47 : WMLElement(tagName, doc)
48 , m_task(0)
49 , m_isActive(false)
50 , m_isNoop(false)
51 , m_isOptional(false)
52 {
53 }
54
create(const QualifiedName & tagName,Document * document)55 PassRefPtr<WMLDoElement> WMLDoElement::create(const QualifiedName& tagName, Document* document)
56 {
57 return adoptRef(new WMLDoElement(tagName, document));
58 }
59
defaultEventHandler(Event * event)60 void WMLDoElement::defaultEventHandler(Event* event)
61 {
62 if (m_isOptional)
63 return;
64
65 if (event->type() == eventNames().keypressEvent) {
66 WMLElement::defaultEventHandler(event);
67 return;
68 }
69
70 if (event->type() != eventNames().clickEvent && event->type() != eventNames().keydownEvent)
71 return;
72
73 if (event->isKeyboardEvent()
74 && static_cast<KeyboardEvent*>(event)->keyIdentifier() != "Enter")
75 return;
76
77 if (m_type == "accept" || m_type == "options") {
78 if (m_task)
79 m_task->executeTask();
80 } else if (m_type == "prev") {
81 ASSERT(document()->isWMLDocument());
82 WMLDocument* document = static_cast<WMLDocument*>(this->document());
83
84 WMLPageState* pageState = wmlPageStateForDocument(document);
85 if (!pageState)
86 return;
87
88 // Stop the timer of the current card if it is active
89 if (WMLCardElement* card = document->activeCard()) {
90 if (WMLTimerElement* eventTimer = card->eventTimer())
91 eventTimer->stop();
92 }
93
94 pageState->page()->backForward()->goBack();
95 } else if (m_type == "reset") {
96 WMLPageState* pageState = wmlPageStateForDocument(document());
97 if (!pageState)
98 return;
99
100 pageState->reset();
101 }
102 }
103
parseMappedAttribute(Attribute * attr)104 void WMLDoElement::parseMappedAttribute(Attribute* attr)
105 {
106 if (attr->name() == HTMLNames::typeAttr)
107 m_type = parseValueForbiddingVariableReferences(attr->value());
108 else if (attr->name() == HTMLNames::nameAttr)
109 m_name = parseValueForbiddingVariableReferences(attr->value());
110 else if (attr->name() == optionalAttr)
111 m_isOptional = (attr->value() == "true");
112 else
113 WMLElement::parseMappedAttribute(attr);
114 }
115
insertedIntoDocument()116 void WMLDoElement::insertedIntoDocument()
117 {
118 WMLElement::insertedIntoDocument();
119
120 // Spec: An unspecified 'name' defaults to the value of the 'type' attribute.
121 if (!hasAttribute(HTMLNames::nameAttr))
122 m_name = m_type;
123
124 ContainerNode* parent = parentNode();
125 if (!parent || !parent->isWMLElement())
126 return;
127
128 if (WMLEventHandlingElement* eventHandlingElement = toWMLEventHandlingElement(static_cast<WMLElement*>(parent)))
129 eventHandlingElement->registerDoElement(this, document());
130 }
131
removedFromDocument()132 void WMLDoElement::removedFromDocument()
133 {
134 ContainerNode* parent = parentNode();
135
136 if (parent && parent->isWMLElement()) {
137 if (WMLEventHandlingElement* eventHandlingElement = toWMLEventHandlingElement(static_cast<WMLElement*>(parent)))
138 eventHandlingElement->deregisterDoElement(this);
139 }
140
141 WMLElement::removedFromDocument();
142 }
143
attach()144 void WMLDoElement::attach()
145 {
146 WMLElement::attach();
147
148 // The call to updateFromElement() needs to go after the call through
149 // to the base class's attach() because that can sometimes do a close
150 // on the renderer.
151 if (renderer())
152 renderer()->updateFromElement();
153 }
154
createRenderer(RenderArena * arena,RenderStyle * style)155 RenderObject* WMLDoElement::createRenderer(RenderArena* arena, RenderStyle* style)
156 {
157 if (!m_isActive || m_isOptional || m_isNoop)
158 return 0;
159
160 if (style) {
161 style->setUnique();
162 style->setBackgroundColor(Color::lightGray);
163 }
164
165 return new (arena) RenderButton(this);
166 }
167
recalcStyle(StyleChange change)168 void WMLDoElement::recalcStyle(StyleChange change)
169 {
170 WMLElement::recalcStyle(change);
171
172 if (renderer())
173 renderer()->updateFromElement();
174 }
175
registerTask(WMLTaskElement * task)176 void WMLDoElement::registerTask(WMLTaskElement* task)
177 {
178 ASSERT(!m_task);
179 m_task = task;
180 }
181
deregisterTask(WMLTaskElement * task)182 void WMLDoElement::deregisterTask(WMLTaskElement* task)
183 {
184 ASSERT_UNUSED(task, m_task == task);
185 m_task = 0;
186 }
187
label() const188 String WMLDoElement::label() const
189 {
190 return parseValueSubstitutingVariableReferences(getAttribute(HTMLNames::labelAttr));
191 }
192
193 }
194
195 #endif
196