src/views/dolphinremoteencoding.cpp

   1 /*
   2  * SPDX-FileCopyrightText: 2009 Rahman Duran <rahman.duran@gmail.com>
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-or-later
   5  */
   6
   7 /*
   8  * This code is largely based on the kremoteencodingplugin
   9  * SPDX-FileCopyrightText: 2003 Thiago Macieira <thiago.macieira@kdemail.net>
  10  * Distributed under the same terms.
  11  */
  12
  13 #include "dolphinremoteencoding.h"
  14
  15 #include "dolphindebug.h"
  16 #include "dolphinviewactionhandler.h"
  17
  18 #include <KActionCollection>
  19 #include <KActionMenu>
  20 #include <KCharsets>
  21 #include <KConfig>
  22 #include <KConfigGroup>
  23 #include <KIO/Scheduler>
  24 #include <KLocalizedString>
  25 #include <KProtocolInfo>
  26 #include <KProtocolManager>
  27
  28 #include <QMenu>
  29
  30 #define DATA_KEY QStringLiteral("Charset")
  31
  32 DolphinRemoteEncoding::DolphinRemoteEncoding(QObject *parent, DolphinViewActionHandler *actionHandler)
  33     : QObject(parent)
  34     , m_actionHandler(actionHandler)
  35     , m_loaded(false)
  36     , m_idDefault(0)
  37 {
  38     m_menu = new KActionMenu(QIcon::fromTheme(QStringLiteral("character-set")), i18n("Select Remote Charset"), this);
  39     m_actionHandler->actionCollection()->addAction(QStringLiteral("change_remote_encoding"), m_menu);
  40     connect(m_menu->menu(), &QMenu::aboutToShow, this, &DolphinRemoteEncoding::slotAboutToShow);
  41
  42     m_menu->setEnabled(false);
  43     m_menu->setPopupMode(QToolButton::InstantPopup);
  44 }
  45
  46 DolphinRemoteEncoding::~DolphinRemoteEncoding()
  47 {
  48 }
  49
  50 void DolphinRemoteEncoding::slotReload()
  51 {
  52     loadSettings();
  53 }
  54
  55 void DolphinRemoteEncoding::loadSettings()
  56 {
  57     m_loaded = true;
  58     m_encodingDescriptions = KCharsets::charsets()->descriptiveEncodingNames();
  59
  60     fillMenu();
  61 }
  62
  63 void DolphinRemoteEncoding::slotAboutToOpenUrl()
  64 {
  65     QUrl oldURL = m_currentURL;
  66     m_currentURL = m_actionHandler->currentView()->url();
  67
  68     if (m_currentURL.scheme() != oldURL.scheme()) {
  69         // This plugin works on ftp, fish, etc.
  70         // everything whose type is T_FILESYSTEM except for local files
  71         if (!m_currentURL.isLocalFile() && KProtocolManager::outputType(m_currentURL) == KProtocolInfo::T_FILESYSTEM) {
  72             m_menu->setEnabled(true);
  73             loadSettings();
  74         } else {
  75             m_menu->setEnabled(false);
  76         }
  77         return;
  78     }
  79
  80     if (m_currentURL.host() != oldURL.host()) {
  81         updateMenu();
  82     }
  83 }
  84
  85 void DolphinRemoteEncoding::fillMenu()
  86 {
  87     QMenu *menu = m_menu->menu();
  88     menu->clear();
  89
  90     menu->addAction(i18n("Default"), this, &DolphinRemoteEncoding::slotDefault)->setCheckable(true);
  91     for (int i = 0; i < m_encodingDescriptions.size(); i++) {
  92         QAction *action = new QAction(m_encodingDescriptions.at(i), this);
  93         action->setCheckable(true);
  94         action->setData(i);
  95         menu->addAction(action);
  96     }
  97     menu->addSeparator();
  98
  99     menu->addAction(i18n("Reload"), this, &DolphinRemoteEncoding::slotReload);
 100     m_idDefault = m_encodingDescriptions.size() + 2;
 101
 102     connect(menu, &QMenu::triggered, this, &DolphinRemoteEncoding::slotItemSelected);
 103 }
 104
 105 void DolphinRemoteEncoding::updateMenu()
 106 {
 107     if (!m_loaded) {
 108         loadSettings();
 109     }
 110
 111     // uncheck everything
 112     for (int i = 0; i < m_menu->menu()->actions().count(); i++) {
 113         m_menu->menu()->actions().at(i)->setChecked(false);
 114     }
 115
 116     const QString charset = KCharsets::charsets()->descriptionForEncoding(KProtocolManager::charsetFor(m_currentURL));
 117     if (!charset.isEmpty()) {
 118         int id = 0;
 119         bool isFound = false;
 120         for (int i = 0; i < m_encodingDescriptions.size(); i++) {
 121             if (m_encodingDescriptions.at(i) == charset) {
 122                 isFound = true;
 123                 id = i;
 124                 break;
 125             }
 126         }
 127
 128         qCDebug(DolphinDebug) << "URL=" << m_currentURL << " charset=" << charset;
 129
 130         if (!isFound) {
 131             qCWarning(DolphinDebug) << "could not find entry for charset=" << charset;
 132         } else {
 133             m_menu->menu()->actions().at(id)->setChecked(true);
 134         }
 135     } else {
 136         m_menu->menu()->actions().at(m_idDefault)->setChecked(true);
 137     }
 138 }
 139
 140 void DolphinRemoteEncoding::slotAboutToShow()
 141 {
 142     if (!m_loaded) {
 143         loadSettings();
 144     }
 145     updateMenu();
 146 }
 147
 148 void DolphinRemoteEncoding::slotItemSelected(QAction *action)
 149 {
 150     if (action) {
 151         int id = action->data().toInt();
 152
 153         KConfig config(("kio_" + m_currentURL.scheme() + "rc").toLatin1());
 154         QString host = m_currentURL.host();
 155         if (m_menu->menu()->actions().at(id)->isChecked()) {
 156             QString charset = KCharsets::charsets()->encodingForName(m_encodingDescriptions.at(id));
 157             KConfigGroup cg(&config, host);
 158             cg.writeEntry(DATA_KEY, charset);
 159             config.sync();
 160
 161             // Update the io-slaves...
 162             updateView();
 163         }
 164     }
 165 }
 166
 167 void DolphinRemoteEncoding::slotDefault()
 168 {
 169     // We have no choice but delete all higher domain level
 170     // settings here since it affects what will be matched.
 171     KConfig config(("kio_" + m_currentURL.scheme() + "rc").toLatin1());
 172
 173     QStringList partList = m_currentURL.host().split('.', Qt::SkipEmptyParts);
 174     if (!partList.isEmpty()) {
 175         partList.erase(partList.begin());
 176
 177         QStringList domains;
 178         // Remove the exact name match...
 179         domains << m_currentURL.host();
 180
 181         while (!partList.isEmpty()) {
 182             if (partList.count() == 2) {
 183                 if (partList[0].length() <= 2 && partList[1].length() == 2) {
 184                     break;
 185                 }
 186             }
 187
 188             if (partList.count() == 1) {
 189                 break;
 190             }
 191
 192             domains << partList.join(QLatin1Char('.'));
 193             partList.erase(partList.begin());
 194         }
 195
 196         for (QStringList::const_iterator it = domains.constBegin(); it != domains.constEnd(); ++it) {
 197             qCDebug(DolphinDebug) << "Domain to remove: " << *it;
 198             if (config.hasGroup(*it)) {
 199                 config.deleteGroup(*it);
 200             } else if (config.group("").hasKey(*it)) {
 201                 config.group("").deleteEntry(*it); //don't know what group name is supposed to be XXX
 202             }
 203         }
 204     }
 205     config.sync();
 206
 207     // Update the io-slaves.
 208     updateView();
 209 }
 210
 211 void DolphinRemoteEncoding::updateView()
 212 {
 213     KIO::Scheduler::emitReparseSlaveConfiguration();
 214     // Reload the page with the new charset
 215     m_actionHandler->currentView()->setUrl(m_currentURL);
 216     m_actionHandler->currentView()->reload();
 217 }