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 "WMLOnEventElement.h"
25
26#include "Attribute.h"
27#include "HTMLNames.h"
28#include "WMLErrorHandling.h"
29#include "WMLEventHandlingElement.h"
30#include "WMLIntrinsicEventHandler.h"
31#include "WMLNames.h"
32#include "WMLVariables.h"
33
34namespace WebCore {
35
36using namespace WMLNames;
37
38WMLOnEventElement::WMLOnEventElement(const QualifiedName& tagName, Document* doc)
39    : WMLElement(tagName, doc)
40    , m_type(WMLIntrinsicEventUnknown)
41{
42}
43
44PassRefPtr<WMLOnEventElement> WMLOnEventElement::create(const QualifiedName& tagName, Document* document)
45{
46    return adoptRef(new WMLOnEventElement(tagName, document));
47}
48
49void WMLOnEventElement::parseMappedAttribute(Attribute* attr)
50{
51    if (attr->name() == HTMLNames::typeAttr) {
52        String parsedValue = parseValueForbiddingVariableReferences(attr->value());
53        if (parsedValue.isEmpty())
54            return;
55
56        if (parsedValue == onenterforwardAttr)
57            m_type = WMLIntrinsicEventOnEnterForward;
58        else if (parsedValue == onenterbackwardAttr)
59            m_type = WMLIntrinsicEventOnEnterBackward;
60        else if (parsedValue == ontimerAttr)
61            m_type = WMLIntrinsicEventOnTimer;
62        else if (parsedValue == onpickAttr)
63            m_type = WMLIntrinsicEventOnPick;
64    } else
65        WMLElement::parseMappedAttribute(attr);
66}
67
68static inline WMLEventHandlingElement* eventHandlingParent(Node* parent)
69{
70    if (!parent || !parent->isWMLElement())
71        return 0;
72
73    return toWMLEventHandlingElement(static_cast<WMLElement*>(parent));
74}
75
76void WMLOnEventElement::registerTask(WMLTaskElement* task)
77{
78    if (m_type == WMLIntrinsicEventUnknown)
79        return;
80
81    // Register intrinsic event to the event handler of the owner of onevent element
82    WMLEventHandlingElement* eventHandlingElement = eventHandlingParent(parentNode());
83    if (!eventHandlingElement)
84        return;
85
86    eventHandlingElement->createEventHandlerIfNeeded();
87
88    RefPtr<WMLIntrinsicEvent> event = WMLIntrinsicEvent::createWithTask(task);
89    if (!eventHandlingElement->eventHandler()->registerIntrinsicEvent(m_type, event))
90        reportWMLError(document(), WMLErrorConflictingEventBinding);
91}
92
93void WMLOnEventElement::deregisterTask(WMLTaskElement*)
94{
95    WMLEventHandlingElement* eventHandlingElement = eventHandlingParent(parentNode());
96    if (!eventHandlingElement)
97        return;
98
99    eventHandlingElement->eventHandler()->deregisterIntrinsicEvent(m_type);
100}
101
102}
103
104#endif
105