okular/core/script/kjs_console.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2008 by Pino Toscano <pino@kde.org>                     *
   3  *   Copyright (C) 2008 by Harri Porten <porten@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 "kjs_console_p.h"
  12
  13 #include <kjs/kjsobject.h>
  14 #include <kjs/kjsprototype.h>
  15 #include <kjs/kjsarguments.h>
  16
  17 #include <kdebug.h>
  18
  19 #include "../debug_p.h"
  20
  21 using namespace Okular;
  22
  23 static KJSPrototype *g_consoleProto;
  24
  25 #ifdef OKULAR_JS_CONSOLE
  26
  27 #include <qlayout.h>
  28 #include <qplaintextedit.h>
  29
  30 #include <kdialog.h>
  31 #include <kstandardguiitem.h>
  32
  33 K_GLOBAL_STATIC( KDialog, g_jsConsoleWindow )
  34 static QPlainTextEdit *g_jsConsoleLog = 0;
  35
  36 static void createConsoleWindow()
  37 {
  38     if ( g_jsConsoleWindow.exists() )
  39         return;
  40
  41     g_jsConsoleWindow->setButtons( KDialog::Close | KDialog::User1 );
  42     g_jsConsoleWindow->setButtonGuiItem( KDialog::User1, KStandardGuiItem::clear() );
  43
  44     QVBoxLayout *mainLay = new QVBoxLayout( g_jsConsoleWindow->mainWidget() );
  45     mainLay->setMargin( 0 );
  46     g_jsConsoleLog = new QPlainTextEdit( g_jsConsoleWindow->mainWidget() );
  47     g_jsConsoleLog->setReadOnly( true );
  48     mainLay->addWidget( g_jsConsoleLog );
  49
  50     QObject::connect( g_jsConsoleWindow, SIGNAL( closeClicked() ),
  51                       g_jsConsoleWindow, SLOT( close() ) );
  52     QObject::connect( g_jsConsoleWindow, SIGNAL( user1Clicked() ),
  53                       g_jsConsoleLog, SLOT( clear() ) );
  54 }
  55
  56 static void showConsole()
  57 {
  58     createConsoleWindow();
  59     g_jsConsoleWindow->show();
  60 }
  61
  62 static void hideConsole()
  63 {
  64     if ( !g_jsConsoleWindow.exists() )
  65         return;
  66
  67     g_jsConsoleWindow->hide();
  68 }
  69
  70 static void clearConsole()
  71 {
  72     if ( !g_jsConsoleWindow.exists() )
  73         return;
  74
  75     g_jsConsoleLog->clear();
  76 }
  77
  78 static void outputToConsole( const QString &message )
  79 {
  80     showConsole();
  81     g_jsConsoleLog->appendPlainText( message );
  82 }
  83
  84 #else /* OKULAR_JS_CONSOLE */
  85
  86 static void showConsole()
  87 {
  88 }
  89
  90 static void hideConsole()
  91 {
  92 }
  93
  94 static void clearConsole()
  95 {
  96 }
  97
  98 static void outputToConsole( const QString &cMessage )
  99 {
 100     kDebug(OkularDebug) << "CONSOLE:" << cMessage;
 101 }
 102
 103 #endif /* OKULAR_JS_CONSOLE */
 104
 105 static KJSObject consoleClear( KJSContext *, void *, const KJSArguments & )
 106 {
 107     clearConsole();
 108     return KJSUndefined();
 109 }
 110
 111 static KJSObject consoleHide( KJSContext *, void *, const KJSArguments & )
 112 {
 113     hideConsole();
 114     return KJSUndefined();
 115 }
 116
 117 static KJSObject consolePrintln( KJSContext *ctx, void *,
 118                                  const KJSArguments &arguments )
 119 {
 120     QString cMessage = arguments.at( 0 ).toString( ctx );
 121     outputToConsole( cMessage );
 122
 123     return KJSUndefined();
 124 }
 125
 126 static KJSObject consoleShow( KJSContext *, void *, const KJSArguments & )
 127 {
 128     showConsole();
 129     return KJSUndefined();
 130 }
 131
 132 void JSConsole::initType( KJSContext *ctx )
 133 {
 134     static bool initialized = false;
 135     if ( initialized )
 136         return;
 137     initialized = true;
 138
 139     g_consoleProto = new KJSPrototype();
 140
 141     g_consoleProto->defineFunction( ctx, "clear", consoleClear );
 142     g_consoleProto->defineFunction( ctx, "hide", consoleHide );
 143     g_consoleProto->defineFunction( ctx, "println", consolePrintln );
 144     g_consoleProto->defineFunction( ctx, "hide", consoleShow );
 145 }
 146
 147 KJSObject JSConsole::object( KJSContext *ctx )
 148 {
 149     return g_consoleProto->constructObject( ctx, 0 );
 150 }