1 /**

     2  * Copyright (C) 2008 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 "WMLTimerElement.h"

    25 

    26 #include "Attribute.h"

    27 #include "HTMLNames.h"

    28 #include "WMLCardElement.h"

    29 #include "WMLDocument.h"

    30 #include "WMLNames.h"

    31 #include "WMLPageState.h"

    32 #include "WMLTemplateElement.h"

    33 #include "WMLVariables.h"

    34 

    35 namespace WebCore {

    36 

    37 using namespace WMLNames;

    38 

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

    40     : WMLElement(tagName, doc)

    41     , m_timer(this, &WMLTimerElement::timerFired)

    42 {

    43 }

    44 

    45 void WMLTimerElement::parseMappedAttribute(Attribute* attr)

    46 {

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

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

    49     else

    50         WMLElement::parseMappedAttribute(attr);

    51 }

    52 

    53 void WMLTimerElement::insertedIntoDocument()

    54 {

    55     WMLElement::insertedIntoDocument();

    56 

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

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

    59         return;

    60 

    61     Node* parent = parentNode();

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

    63         return;

    64 

    65     if (parent->hasTagName(cardTag)) {

    66         m_card = static_cast<WMLCardElement*>(parent);

    67         m_card->setIntrinsicEventTimer(this);

    68     }

    69 }

    70 

    71 void WMLTimerElement::removedFromDocument()

    72 {

    73     Node* parent = parentNode();

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

    75         m_card->setIntrinsicEventTimer(0);

    76         m_card = 0;

    77     }

    78 

    79     WMLElement::removedFromDocument();

    80 }

    81 

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

    83 {

    84     if (!m_card)

    85         return;

    86 

    87     WMLPageState* pageState = wmlPageStateForDocument(document());

    88     if (!pageState)

    89         return;

    90 

    91     String value = this->value();

    92 

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

    94     if (!m_name.isEmpty()) {

    95         value = "0";

    96         pageState->storeVariable(m_name, value);

    97     }

    98 

    99     WMLIntrinsicEventType eventType = WMLIntrinsicEventOnTimer;

   100     WMLIntrinsicEventHandler* eventHandler = m_card->eventHandler();

   101 

   102     bool hasIntrinsicEvent = false;

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

   104         hasIntrinsicEvent = true;

   105     else if (m_card->templateElement()) {

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

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

   108             hasIntrinsicEvent = true;

   109     }

   110 

   111     if (hasIntrinsicEvent)

   112         eventHandler->triggerIntrinsicEvent(eventType);

   113 }

   114 

   115 void WMLTimerElement::start(int interval)

   116 {

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

   118         return;

   119 

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

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

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

   123     }

   124 

   125     if (interval <= 0)

   126         interval = value().toInt();

   127 

   128     if (interval > 0)

   129         m_timer.startOneShot(interval / 10.0f);

   130 }

   131 

   132 void WMLTimerElement::stop()

   133 {

   134     if (m_timer.isActive())

   135         m_timer.stop();

   136 }

   137 

   138 void WMLTimerElement::storeIntervalToPageState()

   139 {

   140     if (!m_timer.isActive())

   141         return;

   142 

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

   144 

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

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

   147 }

   148 

   149 String WMLTimerElement::value() const

   150 {

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

   152 }

   153 

   154 }

   155 

   156 #endif