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      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 "WMLDocument.h"
     25 
     26 #include "BackForwardList.h"
     27 #include "Frame.h"
     28 #include "Page.h"
     29 #include "Tokenizer.h"
     30 #include "WMLCardElement.h"
     31 #include "WMLErrorHandling.h"
     32 #include "WMLPageState.h"
     33 #include "WMLTemplateElement.h"
     34 
     35 namespace WebCore {
     36 
     37 WMLDocument::WMLDocument(Frame* frame)
     38     : Document(frame, false, false)
     39     , m_activeCard(0)
     40 {
     41     clearXMLVersion();
     42 }
     43 
     44 WMLDocument::~WMLDocument()
     45 {
     46 }
     47 
     48 void WMLDocument::finishedParsing()
     49 {
     50     if (Tokenizer* tokenizer = this->tokenizer()) {
     51         if (!tokenizer->wellFormed()) {
     52             Document::finishedParsing();
     53             return;
     54         }
     55     }
     56 
     57     bool hasAccess = initialize(true);
     58     Document::finishedParsing();
     59 
     60     if (!hasAccess) {
     61         m_activeCard = 0;
     62 
     63         WMLPageState* wmlPageState = wmlPageStateForDocument(this);
     64         if (!wmlPageState)
     65             return;
     66 
     67         Page* page = wmlPageState->page();
     68         if (!page)
     69             return;
     70 
     71         BackForwardList* list = page->backForwardList();
     72         if (!list)
     73             return;
     74 
     75         HistoryItem* item = list->backItem();
     76         if (!item)
     77             return;
     78 
     79         page->goToItem(item, FrameLoadTypeBackWMLDeckNotAccessible);
     80         return;
     81     }
     82 
     83     if (m_activeCard)
     84         m_activeCard->handleIntrinsicEventIfNeeded();
     85 }
     86 
     87 bool WMLDocument::initialize(bool aboutToFinishParsing)
     88 {
     89     WMLPageState* wmlPageState = wmlPageStateForDocument(this);
     90     if (!wmlPageState || !wmlPageState->canAccessDeck())
     91         return false;
     92 
     93     // Remember that we'e successfully entered the deck
     94     wmlPageState->resetAccessControlData();
     95 
     96     // Notify the existance of templates to all cards of the current deck
     97     WMLTemplateElement::registerTemplatesInDocument(this);
     98 
     99     // Set destination card
    100     m_activeCard = WMLCardElement::determineActiveCard(this);
    101     if (!m_activeCard) {
    102         reportWMLError(this, WMLErrorNoCardInDocument);
    103         return true;
    104     }
    105 
    106     // Handle deck-level task overrides
    107     m_activeCard->handleDeckLevelTaskOverridesIfNeeded();
    108 
    109     // Handle card-level intrinsic event
    110     if (!aboutToFinishParsing)
    111         m_activeCard->handleIntrinsicEventIfNeeded();
    112 
    113     return true;
    114 }
    115 
    116 WMLPageState* wmlPageStateForDocument(Document* doc)
    117 {
    118     ASSERT(doc);
    119 
    120     Page* page = doc->page();
    121     ASSERT(page);
    122 
    123     return page->wmlPageState();
    124 }
    125 
    126 }
    127 
    128 #endif
    129