1 /*

     2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17 

    18 

    19 #include <QtGui>

    20 #include <QWebElement>

    21 #include <QWebFrame>

    22 #include <QWebPage>

    23 

    24 #include "ChromeDOM.h"

    25 #include "ChromeRenderer.h"

    26 #include "ChromeSnippet.h"

    27 #include "ChromeWidget.h"

    28 #include "WebChromeSnippet.h"

    29 #include "WebChromeContainerSnippet.h"

    30 #include "GreenChromeSnippet.h"

    31 #include "BlueChromeSnippet.h"

    32 #include "ScrollZoomWidget.h"

    33 #include "ProgressSnippet.h"

    34 #include "TextEditItem.h"

    35 #include "ToolbarChromeItem.h"

    36 #include "ContentToolbarChromeItem.h"

    37 #include "iconsnippet.h"

    38 #include "iconwidget.h"

    39 #include "ActionButton.h"

    40 #include "UrlSearchSnippet.h"

    41 #include "ActionButtonSnippet.h"

    42 #include "mostvisitedpageview.h"

    43 #include "mostvisitedsnippet.h"

    44 

    45 #include <QDebug>

    46 

    47 //TODO: Replace JS strings with DOM api. Make stateful: i.e. get the doc element from the current page

    48 

    49 namespace GVA {

    50 

    51   ChromeDOM::ChromeDOM(QWebPage * page, ChromeWidget * chrome)

    52     : m_page(page),

    53       m_chrome(chrome),

    54       m_height(0),

    55       m_bytes(0)

    56   {

    57     m_renderer = m_chrome->renderer();

    58     m_renderer->clearRenderList();

    59   }

    60   

    61   ChromeDOM::~ChromeDOM()

    62   {

    63   }

    64 

    65   QVariant ChromeDOM::evalInChromeContext(QString js){

    66     return m_page->mainFrame()->evaluateJavaScript(js);

    67   }

    68   

    69   QWebElement ChromeDOM::getElementById(const QString &id)

    70   {

    71     return m_page->mainFrame()->documentElement().findFirst("#" + id);

    72   }

    73   

    74   QRect ChromeDOM::getElementRect(const QString &id)

    75   {

    76     return getElementById(id).geometry();

    77   }

    78   

    79   QSize ChromeDOM::getElementSize(const QString &id)

    80   {

    81     QRect rect = getElementRect(id);

    82     return QSize(rect.width(), rect.height());

    83   }

    84   

    85   QString ChromeDOM::getElementAttribute(const QString &id, const QString &attribute)

    86   {

    87     return getElementById(id).attribute(attribute);

    88   }

    89   

    90   //Get the cacheable script element. Only one is allowed so get the first one.

    91   /*QString ChromeDOM::getCacheableScript()

    92   {

    93     QWebElement doc = m_page->mainFrame()->documentElement();

    94     return doc.findAll("script.GinebraCacheable").toList()[0].toPlainText();

    95   }

    96   */

    97 

    98   //Get a list of cached handlers for a snippet

    99   

   100   QList<CachedHandler> ChromeDOM::getCachedHandlers(const QString &elementId, const QRectF & ownerArea)

   101   {

   102     QWebElement snippet = getElementById(elementId);

   103     QList <QWebElement> controls =  snippet.findAll(".GinebraCached").toList();

   104     QList <CachedHandler> handlers;

   105     for(int i = 0; i < controls.size(); i++){

   106       QWebElement elem = controls.at(i);

   107       //Element rectangle relative to snippet, so we can handle mouse events relative to snippet

   108       //qDebug() << "====> Owner X: " << ownerArea.x() << " Owner Width: " << ownerArea.width() << " Elem X: " << elem.geometry().x() << " Elem Width: " << elem.geometry().width();

   109       QRectF elemRect(elem.geometry().x() - ownerArea.x(), elem.geometry().y() - ownerArea.y(), elem.geometry().width(), elem.geometry().height()); 

   110       //NB: For now we handle only onclick from cache. Should add at least long-press too.

   111       CachedHandler handler(elem.attribute("id"), elem.attribute("data-GinebraOnClick"), elemRect, m_chrome, elem.attribute("data-GinebraTargetView"));

   112       //qDebug() << "Cached handler" << handler.elementId() << ": "  << handler.script() << ": "  << handler.rect();

   113       handlers.append(handler);

   114     }

   115     return handlers;  

   116   }

   117   

   118   ChromeSnippet *ChromeDOM::getSnippet(const QString &docElementId, QGraphicsItem* parent) {

   119     

   120     ChromeSnippet * result = 0;

   121     QWebElement doc = m_page->mainFrame()->documentElement();

   122     QWebElement element = doc.findFirst("#" + docElementId);

   123     QRect rect = getElementRect(docElementId);

   124     m_height += rect.height();

   125     //m_bytes += rect.width() * rect.height() * 3; //Calculate total rendered area at 24 bit depth

   126     //qDebug() << "Chrome total rects at 24 bits: " << m_bytes;

   127     //qDebug() << "Snippet: ID: " << docElementId << " Owner Area: " << rect << " Element Rect: " << element.geometry();

   128     if(!rect.isNull()){

   129       QString className = element.attribute("data-GinebraNativeClass", "__NO_CLASS__");

   130       if(className == "__NO_CLASS__")

   131 	if(element.attribute("data-GinebraContainer", "false") == "true" ){

   132           

   133           QString type = element.attribute("data-GinebraItemType", "normal");

   134           if (type == "contenttoolbar" ) {

   135             ContentToolbarChromeItem * widget = new ContentToolbarChromeItem();

   136             result = new WebChromeContainerSnippet(docElementId, m_chrome, rect, element, widget);

   137             widget->setSnippet((WebChromeContainerSnippet*)result);

   138           }

   139           else if (type == "toolbar" ) {

   140             ToolbarChromeItem * widget = new ToolbarChromeItem();

   141             result = new WebChromeContainerSnippet(docElementId, m_chrome, rect, element, widget);

   142             widget->setSnippet((WebChromeContainerSnippet*)result);

   143           }

   144           else {

   145             result = new WebChromeContainerSnippet(docElementId, m_chrome, rect, element, new QGraphicsWidget());

   146           }

   147 	}

   148 	else {

   149 	  result = new WebChromeSnippet(docElementId, m_chrome, rect, element);

   150 	  m_renderer->addRenderItem((static_cast<WebChromeSnippet*>(result))->item());

   151         }

   152       else {

   153 	QGraphicsWidget * w = 0; 

   154     if (className == "IconSnippet") {

   155         result = new IconSnippet(docElementId, m_chrome, 0, element);

   156         w = new IconWidget(result);

   157     } else if (className == "MostVisitedPagesWidget") {

   158         result = new MostVisitedSnippet(docElementId,m_chrome,0,element);

   159         MostVisitedPagesWidget* mostVisited;

   160         mostVisited = new MostVisitedPagesWidget(result,m_chrome);

   161         mostVisited->hide();

   162         w = mostVisited;

   163     } else if (className == "ActionButton") {

   164         result = new ActionButtonSnippet(docElementId, m_chrome, 0, element);

   165         w = new ActionButton(result);

   166     } else {

   167 	  //Chrome snippet takes ownership of w

   168 	  result = new ChromeSnippet(docElementId, m_chrome, 0, element);

   169 	  if (className == "ScrollZoomWidget")

   170 	    w = new ScrollZoomWidget(result);

   171           else if (className == "UrlSearchSnippet")

   172 	    w = new UrlSearchSnippet(result, m_chrome);

   173 	  else if (className == "ProgressSnippet")

   174 	    w = new ProgressSnippet(result);

   175 	  else if (className == "TextEditSnippet"){

   176 	    w = new TextEditItem(result);

   177 	  }

   178 	  else { 

   179 	    w= new GreenChromeSnippet();

   180 	  }

   181 	}

   182         result->setWidget(w);

   183         //Have snippet deterimine its own size when in anchor layout

   184         w->resize(rect.width(), rect.height());

   185 	w->setPreferredSize(rect.width(), rect.height());

   186 	w->setSizePolicy(QSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred));

   187         //Have snippet determine its own location when NOT in anchor layout

   188         w->setPos(rect.x(), rect.y());	

   189       }

   190 

   191       if(element.parent().attribute("class") == "GinebraSnippet") {

   192 	result->setParentId(element.parent().attribute("id"));

   193       }

   194       //Set auto-layout attributes

   195       result->setAnchor(element.attribute("data-GinebraAnchor", "AnchorNone"), false);

   196       result->setAnchorOffset(element.attribute("data-GinebraAnchorOffset", "0").toInt());

   197       result->setInitiallyVisible(element.attribute("data-GinebraVisible", "false") == "true" );

   198       result->setHidesContent( element.attribute("data-GinebraHidesContent", "false") == "true" );      

   199     }

   200     return result;

   201   }

   202   

   203   QList <QWebElement> ChromeDOM::getInitialElements()

   204   { 

   205     m_renderer->clearRenderList();

   206     QWebElement test = getElementById("TestTableCell9");

   207     //qDebug() << "TEST ELEMENT:" << test.toPlainText();

   208     m_height = 0;

   209     QWebElement doc = m_page->mainFrame()->documentElement();

   210 #if QT_VERSION < 0x040600 //TBD: Do we care, given that the dom api is not officially supported before 4.6?

   211     return doc.findAll(".GinebraSnippet");

   212 #else

   213     return doc.findAll(".GinebraSnippet").toList();

   214 #endif

   215   } 

   216   

   217 } // end of namespace GVA