okular/extensions.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2002 by Wilco Greven <greven@kde.org>                   *
   3  *   Copyright (C) 2008 by Pino Toscano <pino@kde.org>                     *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  ***************************************************************************/
  10
  11 #include "extensions.h"
  12
  13 // local includes
  14 #include "part.h"
  15
  16 /*
  17  * BrowserExtension class
  18  */
  19 BrowserExtension::BrowserExtension(Part* parent)
  20     : KParts::BrowserExtension( parent ), m_part( parent )
  21 {
  22     emit enableAction("print", true);
  23     setURLDropHandlingEnabled(true);
  24 }
  25
  26
  27 void BrowserExtension::print()
  28 {
  29     m_part->slotPrint();
  30 }
  31
  32
  33 /*
  34  * OkularLiveConnectExtension class
  35  */
  36 #define OKULAR_EVAL_RES_OBJ_NAME "__okular_object"
  37 #define OKULAR_EVAL_RES_OBJ "this." OKULAR_EVAL_RES_OBJ_NAME
  38
  39 OkularLiveConnectExtension::OkularLiveConnectExtension( Part *parent )
  40     : KParts::LiveConnectExtension( parent ), m_inEval( false )
  41 {
  42 }
  43
  44
  45 bool OkularLiveConnectExtension::get( const unsigned long objid, const QString &field,
  46                                       KParts::LiveConnectExtension::Type &type,
  47                                       unsigned long &retobjid, QString &value )
  48 {
  49     Q_UNUSED( value )
  50     retobjid = objid;
  51     bool result = false;
  52     if ( field == QLatin1String( "postMessage" ) )
  53     {
  54          type = KParts::LiveConnectExtension::TypeFunction;
  55          result = true;
  56     }
  57     return result;
  58 }
  59
  60
  61 bool OkularLiveConnectExtension::put( const unsigned long objid, const QString &field, const QString &value )
  62 {
  63     Q_UNUSED( objid )
  64     if ( m_inEval )
  65     {
  66         if ( field == QLatin1String( OKULAR_EVAL_RES_OBJ_NAME ) )
  67            m_evalRes = value;
  68         return true;
  69     }
  70
  71     return false;
  72 }
  73
  74
  75 bool OkularLiveConnectExtension::call( const unsigned long objid, const QString &func, const QStringList &args,
  76                                        KParts::LiveConnectExtension::Type &type, unsigned long &retobjid, QString &value )
  77 {
  78     retobjid = objid;
  79     bool result = false;
  80     if ( func == QLatin1String( "postMessage" ) )
  81     {
  82         type = KParts::LiveConnectExtension::TypeVoid;
  83         postMessage( args );
  84         value = QString();
  85         result = true;
  86     }
  87     return result;
  88 }
  89
  90
  91 QString OkularLiveConnectExtension::eval( const QString &script )
  92 {
  93     KParts::LiveConnectExtension::ArgList args;
  94     args.append( qMakePair( KParts::LiveConnectExtension::TypeString, script ) );
  95     m_evalRes.clear();
  96     m_inEval = true;
  97     emit partEvent( 0, "eval", args );
  98     m_inEval = false;
  99     return m_evalRes;
 100 }
 101
 102
 103 void OkularLiveConnectExtension::postMessage( const QStringList &args )
 104 {
 105     QStringList arrayargs;
 106     Q_FOREACH ( const QString &arg, args )
 107     {
 108         QString newarg = arg;
 109         newarg.replace( '\'', "\\'" );
 110         arrayargs.append( "\"" + newarg + "\"" );
 111     }
 112     const QString arrayarg = '[' + arrayargs.join( ", " ) + ']';
 113     eval( "if (this.messageHandler && typeof this.messageHandler.onMessage == 'function') "
 114           "{ this.messageHandler.onMessage(" + arrayarg + ") }" );
 115 }
 116
 117
 118 #include "extensions.moc"
 119
 120 /* kate: replace-tabs on; indent-width 4; */