qtbrowserplugin/qtbrowserplugin_x11.cpp

   1 /****************************************************************************
   2 **
   3 ** Copyright (C) 2003-2008 Trolltech ASA. All rights reserved.
   4 **
   5 ** This file is part of a Qt Solutions component.
   6 **
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   8 ** License version 2.0 as published by the Free Software Foundation
   9 ** and appearing in the file LICENSE.GPL included in the packaging of
  10 ** this file.  Please review the following information to ensure GNU
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  12 ** http://www.trolltech.com/products/qt/opensource.html
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  14 ** If you are unsure which license is appropriate for your use, please
  15 ** review the following information:
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  19 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
  20 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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  22 ****************************************************************************/
  23 #include <QtGui>
  24 #include <QtGui/QX11EmbedWidget>
  25
  26 #include <kapplication.h>
  27 #include <kaboutdata.h>
  28 #include <KCmdLineArgs>
  29
  30 #include "qtbrowserplugin.h"
  31 #include "qtbrowserplugin_p.h"
  32
  33 #include "qtnpapi.h"
  34
  35 #include <stdlib.h>
  36
  37 static bool ownsqapp = false;
  38 static QMap<QtNPInstance*, QX11EmbedWidget*> clients;
  39
  40 extern "C" bool qtns_event(QtNPInstance *, NPEvent *)
  41 {
  42     return false;
  43 }
  44
  45 extern "C" void qtns_initialize(QtNPInstance* This)
  46 {
  47     if (!qApp) {
  48         ownsqapp = true;
  49         static int argc = 1;
  50         static char **argv = new char*;
  51         argv[0] = "b";
  52
  53         // Workaround to avoid re-initilaziation of glib
  54         char* envvar = qstrdup("QT_NO_THREADED_GLIB=1");
  55         // Unavoidable memory leak; the variable must survive plugin unloading
  56         ::putenv(envvar);
  57         //BEGIN: PLASMAPLUGIN ALTERED CODE
  58 KAboutData aboutData( "plasmoidviewer", 0, ki18n( "Plasma Applet Viewer" ),
  59                           "1.0", ki18n( "blaaaaaa" ), KAboutData::License_BSD,
  60                          ki18n( "(C) 2007, The KDE Team" ) );
  61     aboutData.setProgramIconName( "plasma" );
  62     aboutData.addAuthor( ki18n( "Frerich Raabe" ),
  63                          ki18n( "Original author" ),
  64                         "raabe@kde.org" );
  65  KCmdLineArgs::init( argc, argv, &aboutData );
  66         (void)new KApplication;
  67         //END: PLASMAPLUGIN ALTERED CODE
  68     }
  69     if (!clients.contains(This)) {
  70         QX11EmbedWidget* client = new QX11EmbedWidget;
  71         QHBoxLayout* layout = new QHBoxLayout(client);
  72         layout->setMargin(0);
  73         clients.insert(This, client);
  74     }
  75 }
  76
  77 extern "C" void qtns_destroy(QtNPInstance* This)
  78 {
  79     QMap<QtNPInstance*, QX11EmbedWidget*>::iterator it = clients.find(This);
  80     if (it == clients.end())
  81         return;
  82     delete it.value();
  83     clients.erase(it);
  84 }
  85
  86 extern "C" void qtns_shutdown()
  87 {
  88     if (clients.count() > 0) {
  89         QMap<QtNPInstance*, QX11EmbedWidget*>::iterator it = clients.begin();
  90         while (it != clients.end()) {
  91             delete it.value();
  92             ++it;
  93         }
  94         clients.clear();
  95     }
  96
  97     if (!ownsqapp)
  98         return;
  99
 100     // check if qApp still runs widgets (in other DLLs)
 101     QWidgetList widgets = qApp->allWidgets();
 102     int count = widgets.count();
 103     for (int w = 0; w < widgets.count(); ++w) {
 104         // ignore all Qt generated widgets
 105         QWidget *widget = widgets.at(w);
 106         if (widget->windowFlags() & Qt::Desktop)
 107             count--;
 108     }
 109     if (count) // qApp still used
 110         return;
 111
 112     delete qApp;
 113     ownsqapp = false;
 114 }
 115
 116 extern "C" void qtns_embed(QtNPInstance *This)
 117 {
 118     Q_ASSERT(qobject_cast<QWidget*>(This->qt.object));
 119
 120     QMap<QtNPInstance*, QX11EmbedWidget*>::iterator it = clients.find(This);
 121     if (it == clients.end())
 122         return;
 123     QX11EmbedWidget* client = it.value();
 124     This->qt.widget->setParent(client);
 125     client->layout()->addWidget(This->qt.widget);
 126     client->embedInto(This->window);
 127     client->show();
 128 }
 129
 130 extern "C" void qtns_setGeometry(QtNPInstance *This, const QRect &rect, const QRect &)
 131 {
 132     Q_ASSERT(qobject_cast<QWidget*>(This->qt.object));
 133
 134     QMap<QtNPInstance*, QX11EmbedWidget*>::iterator it = clients.find(This);
 135     if (it == clients.end())
 136         return;
 137     QX11EmbedWidget* client = it.value();
 138     client->setGeometry(QRect(0, 0, rect.width(), rect.height()));
 139 }
 140
 141 /*
 142 extern "C" void qtns_print(QtNPInstance * This, NPPrint *printInfo)
 143 {
 144     NPWindow* printWindow = &(printInfo->print.embedPrint.window);
 145     void* platformPrint = printInfo->print.embedPrint.platformPrint;
 146     // #### Nothing yet.
 147 }
 148 */