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 "WMLPrevElement.h"

    25 

    26 #include "Page.h"

    27 #include "WMLCardElement.h"

    28 #include "WMLDocument.h"

    29 #include "WMLPageState.h"

    30 #include "WMLTimerElement.h"

    31 

    32 namespace WebCore {

    33 

    34 WMLPrevElement::WMLPrevElement(const QualifiedName& tagName, Document* doc)

    35     : WMLTaskElement(tagName, doc)

    36 {

    37 }

    38 

    39 WMLPrevElement::~WMLPrevElement()

    40 {

    41 }

    42 

    43 void WMLPrevElement::executeTask()

    44 {

    45     ASSERT(document()->isWMLDocument());

    46     WMLDocument* document = static_cast<WMLDocument*>(this->document());

    47 

    48     WMLPageState* pageState = wmlPageStateForDocument(document);

    49     if (!pageState)

    50         return;

    51 

    52     WMLCardElement* card = document->activeCard();

    53     if (!card)

    54         return;

    55 

    56     storeVariableState(pageState);

    57 

    58     // Stop the timer of the current card if it is active

    59     if (WMLTimerElement* eventTimer = card->eventTimer())

    60         eventTimer->stop();

    61 

    62     pageState->page()->goBack();

    63 }

    64 

    65 }

    66 

    67 #endif