2 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
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.
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.
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.
24 #include "WMLCardElement.h"
26 #include "Attribute.h"
28 #include "FrameLoader.h"
29 #include "HTMLNames.h"
32 #include "RenderStyle.h"
33 #include "WMLDoElement.h"
34 #include "WMLDocument.h"
35 #include "WMLInputElement.h"
36 #include "WMLIntrinsicEventHandler.h"
38 #include "WMLSelectElement.h"
39 #include "WMLTemplateElement.h"
40 #include "WMLTimerElement.h"
41 #include "WMLVariables.h"
45 using namespace WMLNames;
47 WMLCardElement::WMLCardElement(const QualifiedName& tagName, Document* doc)
48 : WMLElement(tagName, doc)
49 , m_isNewContext(false)
55 ASSERT(hasTagName(cardTag));
58 WMLCardElement::~WMLCardElement()
62 void WMLCardElement::showCard()
81 void WMLCardElement::hideCard()
100 void WMLCardElement::setTemplateElement(WMLTemplateElement* temp)
102 // Only one template is allowed to be attached to a card
104 reportWMLError(document(), WMLErrorMultipleTemplateElements);
111 void WMLCardElement::setIntrinsicEventTimer(WMLTimerElement* timer)
113 // Only one timer is allowed in a card
115 reportWMLError(document(), WMLErrorMultipleTimerElements);
119 m_eventTimer = timer;
122 void WMLCardElement::handleIntrinsicEventIfNeeded()
124 WMLPageState* pageState = wmlPageStateForDocument(document());
128 Frame* frame = document()->frame();
132 FrameLoader* loader = frame->loader();
136 // Calculate the entry method of current card
137 WMLIntrinsicEventType eventType = WMLIntrinsicEventUnknown;
139 switch (loader->policyChecker()->loadType()) {
140 case FrameLoadTypeReload:
142 case FrameLoadTypeBack:
143 eventType = WMLIntrinsicEventOnEnterBackward;
145 case FrameLoadTypeBackWMLDeckNotAccessible:
146 reportWMLError(document(), WMLErrorDeckNotAccessible);
149 eventType = WMLIntrinsicEventOnEnterForward;
153 // Figure out target event handler
154 WMLIntrinsicEventHandler* eventHandler = this->eventHandler();
155 bool hasIntrinsicEvent = false;
157 if (eventType != WMLIntrinsicEventUnknown) {
158 if (eventHandler && eventHandler->hasIntrinsicEvent(eventType))
159 hasIntrinsicEvent = true;
160 else if (m_template) {
161 eventHandler = m_template->eventHandler();
162 if (eventHandler && eventHandler->hasIntrinsicEvent(eventType))
163 hasIntrinsicEvent = true;
167 if (hasIntrinsicEvent)
168 eventHandler->triggerIntrinsicEvent(eventType);
170 // Start the timer if it exists in current card
172 m_eventTimer->start();
174 for (Node* node = traverseNextNode(); node != 0; node = node->traverseNextNode()) {
175 if (!node->isElementNode())
178 if (node->hasTagName(inputTag))
179 static_cast<WMLInputElement*>(node)->initialize();
180 else if (node->hasTagName(selectTag))
181 static_cast<WMLSelectElement*>(node)->selectInitialOptions();
185 void WMLCardElement::handleDeckLevelTaskOverridesIfNeeded()
187 // Spec: The event-handling element may appear inside a template element and specify
188 // event-processing behaviour for all cards in the deck. A deck-level event-handling
189 // element is equivalent to specifying the event-handling element in each card.
193 Vector<WMLDoElement*>& templateDoElements = m_template->doElements();
194 if (templateDoElements.isEmpty())
197 Vector<WMLDoElement*>& cardDoElements = doElements();
198 Vector<WMLDoElement*>::iterator it = cardDoElements.begin();
199 Vector<WMLDoElement*>::iterator end = cardDoElements.end();
201 HashSet<String> cardDoElementNames;
202 for (; it != end; ++it)
203 cardDoElementNames.add((*it)->name());
205 it = templateDoElements.begin();
206 end = templateDoElements.end();
208 for (; it != end; ++it)
209 (*it)->setActive(!cardDoElementNames.contains((*it)->name()));
212 void WMLCardElement::parseMappedAttribute(Attribute* attr)
214 WMLIntrinsicEventType eventType = WMLIntrinsicEventUnknown;
216 if (attr->name() == onenterforwardAttr)
217 eventType = WMLIntrinsicEventOnEnterForward;
218 else if (attr->name() == onenterbackwardAttr)
219 eventType = WMLIntrinsicEventOnEnterBackward;
220 else if (attr->name() == ontimerAttr)
221 eventType = WMLIntrinsicEventOnTimer;
222 else if (attr->name() == newcontextAttr)
223 m_isNewContext = (attr->value() == "true");
224 else if (attr->name() == orderedAttr)
225 m_isOrdered = (attr->value() == "true");
227 WMLElement::parseMappedAttribute(attr);
231 if (eventType == WMLIntrinsicEventUnknown)
234 // Register intrinsic event in card
235 RefPtr<WMLIntrinsicEvent> event = WMLIntrinsicEvent::create(document(), attr->value());
237 createEventHandlerIfNeeded();
238 eventHandler()->registerIntrinsicEvent(eventType, event);
241 void WMLCardElement::insertedIntoDocument()
243 WMLElement::insertedIntoDocument();
244 Document* document = this->document();
246 // The first card inserted into a document, is visible by default.
248 RefPtr<NodeList> nodeList = document->getElementsByTagName("card");
249 if (nodeList && nodeList->length() == 1 && nodeList->item(0) == this)
253 // For the WML layout tests we embed WML content in a XHTML document. Navigating to different cards
254 // within the same deck has a different behaviour in HTML than in WML. HTML wants to "scroll to anchor"
255 // (see FrameLoader) but WML wants a reload. Notify the root document of the layout test that we want
256 // to mimic WML behaviour. This is rather tricky, but has been tested extensively. Usually it's not possible
257 // at all to embed WML in HTML, it's not designed that way, we're just "abusing" it for dynamically created layout tests.
258 if (document->page() && document->page()->mainFrame()) {
259 Document* rootDocument = document->page()->mainFrame()->document();
260 if (rootDocument && rootDocument != document)
261 rootDocument->setContainsWMLContent(true);
265 RenderObject* WMLCardElement::createRenderer(RenderArena* arena, RenderStyle* style)
269 style->setDisplay(NONE);
272 return WMLElement::createRenderer(arena, style);
275 WMLCardElement* WMLCardElement::findNamedCardInDocument(Document* doc, const String& cardName)
277 if (cardName.isEmpty())
280 RefPtr<NodeList> nodeList = doc->getElementsByTagName("card");
284 unsigned length = nodeList->length();
288 for (unsigned i = 0; i < length; ++i) {
289 WMLCardElement* card = static_cast<WMLCardElement*>(nodeList->item(i));
290 if (card->getIdAttribute() != cardName)
299 WMLCardElement* WMLCardElement::determineActiveCard(Document* doc)
301 WMLPageState* pageState = wmlPageStateForDocument(doc);
305 RefPtr<NodeList> nodeList = doc->getElementsByTagName("card");
309 unsigned length = nodeList->length();
313 // Figure out the new target card
314 String cardName = doc->url().fragmentIdentifier();
316 WMLCardElement* activeCard = findNamedCardInDocument(doc, cardName);
318 // Hide all cards - except the destination card - in document
319 for (unsigned i = 0; i < length; ++i) {
320 WMLCardElement* card = static_cast<WMLCardElement*>(nodeList->item(i));
322 if (card == activeCard)
328 // If the target URL didn't contain a fragment identifier, activeCard
329 // is 0, and has to be set to the first card element in the deck.
330 activeCard = static_cast<WMLCardElement*>(nodeList->item(0));
331 activeCard->showCard();
334 // Assure destination card is visible
335 ASSERT(activeCard->isVisible());
336 ASSERT(activeCard->attached());
337 ASSERT(activeCard->renderer());
339 // Update the document title
340 doc->setTitle(activeCard->title());