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 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 55 PassRefPtr<WMLDoElement> WMLDoElement::create(const QualifiedName& tagName, Document* document) 56 { 57 return adoptRef(new WMLDoElement(tagName, document)); 58 } 59 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 } 103 104 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 } 115 116 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 } 131 132 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 } 143 144 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 } 154 155 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 } 167 168 void WMLDoElement::recalcStyle(StyleChange change) 169 { 170 WMLElement::recalcStyle(change); 171 172 if (renderer()) 173 renderer()->updateFromElement(); 174 } 175 176 void WMLDoElement::registerTask(WMLTaskElement* task) 177 { 178 ASSERT(!m_task); 179 m_task = task; 180 } 181 182 void WMLDoElement::deregisterTask(WMLTaskElement* task) 183 { 184 ASSERT_UNUSED(task, m_task == task); 185 m_task = 0; 186 } 187 188 String WMLDoElement::label() const 189 { 190 return parseValueSubstitutingVariableReferences(getAttribute(HTMLNames::labelAttr)); 191 } 192 193 } 194 195 #endif 196
