Viewer.cc

   1 // $Id$
   2 //
   3 // Copyright (C) 2010
   4 //     Stefan Bund <info@j32.de>
   5
   6 /** \file
   7     \brief Viewer non-inline non-template implementation */
   8
   9 #include "Viewer.hh"
  10 //#include "Viewer.ih"
  11
  12 // Custom includes
  13 #include <iostream>
  14 #include <QWebPluginFactory>
  15 #include "Publisher.hh"
  16 #ifdef POPPLER
  17 #include "PDFWidget.hh"
  18 #endif
  19 #include <QPrinter>
  20 #include <QPrintDialog>
  21 #include <QWebInspector>
  22 #include <QWebFrame>
  23 #include <QWebHistory>
  24
  25 //#include "Viewer.mpp"
  26 #define prefix_
  27 ///////////////////////////////cc.p////////////////////////////////////////
  28
  29 #ifdef POPPLER
  30
  31 namespace {
  32
  33     class PDFWebPluginFactory
  34         : public QWebPluginFactory
  35     {
  36     public:
  37         PDFWebPluginFactory(QNetworkAccessManager * manager, QObject * parent = 0);
  38
  39         QObject * create(QString const & mimeType, QUrl const & url,
  40                          QStringList const & argumentNames, QStringList const & argumentValues)
  41             const;
  42         QList<QWebPluginFactory::Plugin> plugins() const;
  43
  44     private:
  45         QNetworkAccessManager * manager_;
  46     };
  47
  48 }
  49
  50 prefix_ PDFWebPluginFactory::PDFWebPluginFactory(QNetworkAccessManager * manager,
  51                                                  QObject * parent)
  52     : QWebPluginFactory(parent), manager_ (manager)
  53 {}
  54
  55 prefix_ QObject * PDFWebPluginFactory::create(QString const & mimeType, QUrl const & url,
  56                                               QStringList const & argumentNames,
  57                                               QStringList const & argumentValues)
  58     const
  59 {
  60     if (mimeType == "application/pdf") {
  61         int idix (argumentNames.indexOf("id"));
  62         QString id;
  63         if (idix>0)
  64             id = argumentValues[idix];
  65         pykit::PDFWidget * plugin = new pykit::PDFWidget(
  66             id, manager_, dynamic_cast<QWidget*>(parent()));
  67         plugin->load(url);
  68         return plugin;
  69     }
  70     return 0;
  71 }
  72
  73 prefix_ QList<QWebPluginFactory::Plugin> PDFWebPluginFactory::plugins()
  74     const
  75 {
  76     QList<QWebPluginFactory::Plugin> plugins;
  77
  78     {
  79         QWebPluginFactory::Plugin plugin;
  80         plugin.name = "PDF viewer";
  81         plugin.description = "View PDF files";
  82         {
  83             QWebPluginFactory::MimeType mimeType;
  84             mimeType.name = "application/pdf";
  85             mimeType.description = "PDF file";
  86             plugin.mimeTypes += mimeType;
  87         }
  88         plugins += plugin;
  89     }
  90
  91     return plugins;
  92 }
  93
  94 #endif
  95
  96 ///////////////////////////////////////////////////////////////////////////
  97 // pykit::Viewer
  98
  99 namespace {
 100     pykit::Viewer * instance_ (0);
 101 }
 102
 103 prefix_ pykit::Viewer::Viewer(QUrl const & url, Publisher * publisher, QWidget * parent)
 104     : QWebView (parent)
 105 {
 106     instance_ = this;
 107     QWebSettings::globalSettings()->setAttribute(QWebSettings::PluginsEnabled, true);
 108     if (! QWebSettings::globalSettings()->testAttribute(QWebSettings::DeveloperExtrasEnabled))
 109         setContextMenuPolicy(Qt::NoContextMenu);
 110     page()->setNetworkAccessManager(
 111         new InternalNetworkAccessManager(page()->networkAccessManager(), this, publisher));
 112 #ifdef POPPLER
 113     page()->setPluginFactory(new PDFWebPluginFactory (page()->networkAccessManager(), this));
 114 #endif
 115     connect(page(), SIGNAL(printRequested(QWebFrame*)), this, SLOT(printRequested()));
 116     load(url);
 117     inspector_ = new QWebInspector();
 118     inspector_->setPage(page());
 119     connect(page()->mainFrame(), SIGNAL(javaScriptWindowObjectCleared()),
 120             this, SLOT(initJSObjects()));
 121     initJSObjects();
 122 }
 123
 124 prefix_ pykit::Viewer::~Viewer()
 125 {
 126     if (inspector_)
 127         delete inspector_;
 128 }
 129
 130 prefix_ pykit::Viewer * pykit::Viewer::instance()
 131 {
 132     return instance_;
 133 }
 134
 135 prefix_ bool pykit::Viewer::canGoBack()
 136 {
 137     return page()->history()->canGoBack();
 138 }
 139
 140 prefix_ bool pykit::Viewer::canGoForward()
 141 {
 142     return page()->history()->canGoForward();
 143 }
 144
 145 prefix_ void pykit::Viewer::initJSObjects()
 146 {
 147     page()->mainFrame()->addToJavaScriptWindowObject("view", this);
 148 }
 149
 150 prefix_ void pykit::Viewer::printRequested()
 151 {
 152     QPrinter printer;
 153     QPrintDialog printDialog(&printer, this);
 154     if (printDialog.exec() == QPrintDialog::Accepted) {
 155         print(&printer);
 156     }
 157 }
 158
 159 ///////////////////////////////cc.e////////////////////////////////////////
 160 #undef prefix_
 161 //#include "Viewer.mpp"
 162
 163 \f
 164 // Local Variables:
 165 // mode: c++
 166 // fill-column: 100
 167 // comment-column: 40
 168 // c-file-style: "j32"
 169 // indent-tabs-mode: nil
 170 // ispell-local-dictionary: "american"
 171 // compile-command: "scons -U"
 172 // End: