/**

 * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public License

 * along with this library; see the file COPYING.LIB.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

 * Boston, MA 02110-1301, USA.

 *

 */

#include "config.h"

#if ENABLE(WML)

#include "WMLTimerElement.h"

#include "Attribute.h"

#include "HTMLNames.h"

#include "WMLCardElement.h"

#include "WMLDocument.h"

#include "WMLNames.h"

#include "WMLPageState.h"

#include "WMLTemplateElement.h"

#include "WMLVariables.h"

namespace WebCore {

using namespace WMLNames;

WMLTimerElement::WMLTimerElement(const QualifiedName& tagName, Document* doc)

    : WMLElement(tagName, doc)

    , m_timer(this, &WMLTimerElement::timerFired)

{

}

void WMLTimerElement::parseMappedAttribute(Attribute* attr)

{

    if (attr->name() == HTMLNames::nameAttr)

        m_name = parseValueForbiddingVariableReferences(attr->value());

    else

        WMLElement::parseMappedAttribute(attr);

}

void WMLTimerElement::insertedIntoDocument()

{

    WMLElement::insertedIntoDocument();

    // If the value of timeout is not a positive integer, ignore it

    if (value().toInt() <= 0)

        return;

    Node* parent = parentNode();

    if (!parent || !parent->isWMLElement())

        return;

    if (parent->hasTagName(cardTag)) {

        m_card = static_cast<WMLCardElement*>(parent);

        m_card->setIntrinsicEventTimer(this);

    }

}

void WMLTimerElement::removedFromDocument()

{

    Node* parent = parentNode();

    if (parent && parent->isWMLElement() && parent->hasTagName(cardTag)) {

        m_card->setIntrinsicEventTimer(0);

        m_card = 0;

    }

    WMLElement::removedFromDocument();

}

void WMLTimerElement::timerFired(Timer<WMLTimerElement>*)

{

    if (!m_card)

        return;

    WMLPageState* pageState = wmlPageStateForDocument(document());

    if (!pageState)

        return;

    String value = this->value();

    // When the timer expires, set the name varialbe of timer to '0'

    if (!m_name.isEmpty()) {

        value = "0";

        pageState->storeVariable(m_name, value);

    }

    WMLIntrinsicEventType eventType = WMLIntrinsicEventOnTimer;

    WMLIntrinsicEventHandler* eventHandler = m_card->eventHandler();

    bool hasIntrinsicEvent = false;

    if (eventHandler && eventHandler->hasIntrinsicEvent(eventType))

        hasIntrinsicEvent = true;

    else if (m_card->templateElement()) {

        eventHandler = m_card->templateElement()->eventHandler();

        if (eventHandler && eventHandler->hasIntrinsicEvent(eventType))

            hasIntrinsicEvent = true;

    }

    if (hasIntrinsicEvent)

        eventHandler->triggerIntrinsicEvent(eventType);

}

void WMLTimerElement::start(int interval)

{

    if (!m_card || m_timer.isActive())

        return;

    if (interval <= 0 && !m_name.isEmpty()) {

        if (WMLPageState* pageState = wmlPageStateForDocument(document()))

            interval = pageState->getVariable(m_name).toInt();

    }

    if (interval <= 0)

        interval = value().toInt();

    if (interval > 0)

        m_timer.startOneShot(interval / 10.0f);

}

void WMLTimerElement::stop()

{

    if (m_timer.isActive())

        m_timer.stop();

}

void WMLTimerElement::storeIntervalToPageState()

{

    if (!m_timer.isActive())

        return;

    int interval = static_cast<int>(m_timer.nextFireInterval()) * 10;

    if (WMLPageState* pageState = wmlPageStateForDocument(document()))

        pageState->storeVariable(m_name, String::number(interval));

}

String WMLTimerElement::value() const

{

    return parseValueSubstitutingVariableReferences(getAttribute(HTMLNames::valueAttr));

}

}

#endif