apps/konqueror/src/konqsettings.cpp

   1 /* This file is part of the KDE project
   2    Copyright (C) 1999, 2007 David Faure <faure@kde.org>
   3
   4    This library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Library General Public
   6    License as published by the Free Software Foundation; either
   7    version 2 of the License, or (at your option) any later version.
   8
   9    This library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public License
  15    along with this library; see the file COPYING.LIB.  If not, write to
  16    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17    Boston, MA 02110-1301, USA.
  18 */
  19
  20 #include "konqsettings.h"
  21 #include <kprotocolmanager.h>
  22 #include "kglobalsettings.h"
  23 #include <ksharedconfig.h>
  24 #include <kglobal.h>
  25 #include <kmimetype.h>
  26 #include <kdesktopfile.h>
  27 #include <kdebug.h>
  28 #include <assert.h>
  29 #include <kconfiggroup.h>
  30
  31 class KonqEmbedSettingsSingleton
  32 {
  33 public:
  34     KonqFMSettings self;
  35 };
  36 K_GLOBAL_STATIC(KonqEmbedSettingsSingleton, globalEmbedSettings)
  37
  38 KonqFMSettings* KonqFMSettings::settings()
  39 {
  40     return &globalEmbedSettings->self;
  41 }
  42
  43 //static
  44 void KonqFMSettings::reparseConfiguration()
  45 {
  46     if (globalEmbedSettings.exists()) {
  47         globalEmbedSettings->self.init(true);
  48     }
  49 }
  50 KonqFMSettings::KonqFMSettings()
  51 {
  52     init(false);
  53 }
  54
  55 KonqFMSettings::~KonqFMSettings()
  56 {
  57 }
  58
  59 void KonqFMSettings::init(bool reparse)
  60 {
  61     if (reparse)
  62         fileTypesConfig()->reparseConfiguration();
  63     m_embedMap = fileTypesConfig()->entryMap("EmbedSettings");
  64 }
  65
  66 KSharedConfig::Ptr KonqFMSettings::fileTypesConfig()
  67 {
  68     if (!m_fileTypesConfig) {
  69         m_fileTypesConfig = KSharedConfig::openConfig("filetypesrc", KConfig::NoGlobals);
  70     }
  71     return m_fileTypesConfig;
  72 }
  73
  74 static bool alwaysEmbedMimeTypeGroup(const QString& mimeType)
  75 {
  76     if ( mimeType.startsWith("inode") || mimeType.startsWith("Browser") || mimeType.startsWith("Konqueror"))
  77         return true; //always embed mimetype inode/*, Browser/* and Konqueror/*
  78     return false;
  79 }
  80
  81 bool KonqFMSettings::shouldEmbed(const QString & _mimeType) const
  82 {
  83     KMimeType::Ptr mime = KMimeType::mimeType(_mimeType, KMimeType::ResolveAliases);
  84     if (!mime) {
  85         kWarning() << "Unknown mimetype" << _mimeType;
  86         return false; // unknown mimetype!
  87     }
  88     const QString mimeType = mime->name();
  89
  90     // First check in user's settings whether to embed or not
  91     // 1 - in the filetypesrc config file (written by the configuration module)
  92     QMap<QString, QString>::const_iterator it = m_embedMap.find( QString::fromLatin1("embed-")+mimeType );
  93     if ( it != m_embedMap.end() ) {
  94         kDebug(1202) << mimeType << it.value();
  95         return it.value() == QLatin1String("true");
  96     }
  97     // 2 - in the configuration for the group if nothing was found in the mimetype
  98     if (alwaysEmbedMimeTypeGroup(mimeType))
  99         return true; //always embed mimetype inode/*, Browser/* and Konqueror/*
 100     const QString mimeTypeGroup = mimeType.left(mimeType.indexOf('/'));
 101     it = m_embedMap.find( QString::fromLatin1("embed-")+mimeTypeGroup );
 102     if ( it != m_embedMap.end() ) {
 103         kDebug(1202) << mimeType << "group setting:" << it.value();
 104         return it.value() == QLatin1String("true");
 105     }
 106     // 2 bis - configuration for group of parent mimetype, if different
 107     if (mimeType[0].isLower()) {
 108         QStringList parents;
 109         parents.append(mimeType);
 110         while (!parents.isEmpty()) {
 111             const QString parent = parents.takeFirst();
 112             if (alwaysEmbedMimeTypeGroup(parent)) {
 113                 return true;
 114             }
 115             KMimeType::Ptr mime = KMimeType::mimeType(parent);
 116             Q_ASSERT(mime); // how could the -parent- be null?
 117             if (mime)
 118                 parents += mime->parentMimeTypes();
 119         }
 120     }
 121
 122     // 3 - if no config found, use default.
 123     // Note: if you change those defaults, also change settings/filetypes/mimetypedata.cpp !
 124     // Embedding is false by default except for image/* and for zip, tar etc.
 125     const bool hasLocalProtocolRedirect = !KProtocolManager::protocolForArchiveMimetype(mimeType).isEmpty();
 126     if ( mimeTypeGroup == "image" || hasLocalProtocolRedirect )
 127         return true;
 128     return false;
 129 }