src/qtui/settingsdlg.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-2022 by the Quassel Project                        *
   3  *   devel@quassel-irc.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) version 3.                                           *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
  19  ***************************************************************************/
  20
  21 #include "settingsdlg.h"
  22
  23 #include <QMessageBox>
  24 #include <QPushButton>
  25
  26 #include "client.h"
  27 #include "icon.h"
  28
  29 SettingsDlg::SettingsDlg(QWidget* parent)
  30     : QDialog(parent)
  31 {
  32     ui.setupUi(this);
  33     setModal(true);
  34     setAttribute(Qt::WA_DeleteOnClose, true);
  35     setWindowIcon(icon::get("configure"));
  36
  37     updateGeometry();
  38
  39     ui.settingsTree->setRootIsDecorated(false);
  40
  41     connect(ui.settingsTree, &QTreeWidget::itemSelectionChanged, this, &SettingsDlg::itemSelected);
  42     connect(ui.buttonBox, &QDialogButtonBox::clicked, this, &SettingsDlg::buttonClicked);
  43
  44     connect(Client::instance(), &Client::coreConnectionStateChanged, this, &SettingsDlg::coreConnectionStateChanged);
  45
  46     setButtonStates();
  47 }
  48
  49 void SettingsDlg::coreConnectionStateChanged()
  50 {
  51     for (int i = 0; i < ui.settingsTree->topLevelItemCount(); i++) {
  52         QTreeWidgetItem* catItem = ui.settingsTree->topLevelItem(i);
  53         for (int j = 0; j < catItem->childCount(); j++) {
  54             QTreeWidgetItem* item = catItem->child(j);
  55             setItemState(item);
  56         }
  57         setItemState(catItem);
  58     }
  59 }
  60
  61 void SettingsDlg::setItemState(QTreeWidgetItem* item)
  62 {
  63     auto* sp = qobject_cast<SettingsPage*>(item->data(0, SettingsPageRole).value<QObject*>());
  64     Q_ASSERT(sp);
  65     bool disabledDueToConnection = !Client::isConnected() && sp->needsCoreConnection();
  66     bool disabledDueToOwnChoice = !sp->isSelectable();
  67     item->setDisabled(disabledDueToConnection || disabledDueToOwnChoice);
  68 }
  69
  70 void SettingsDlg::registerSettingsPage(SettingsPage* sp)
  71 {
  72     sp->setParent(ui.settingsStack);
  73     ui.settingsStack->addWidget(sp);
  74
  75     connect(sp, &SettingsPage::changed, this, &SettingsDlg::setButtonStates);
  76
  77     QTreeWidgetItem* cat;
  78     QList<QTreeWidgetItem*> cats = ui.settingsTree->findItems(sp->category(), Qt::MatchExactly);
  79     if (!cats.count()) {
  80         cat = new QTreeWidgetItem(ui.settingsTree, QStringList(sp->category()));
  81         cat->setExpanded(true);
  82         cat->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);
  83     }
  84     else {
  85         cat = cats[0];
  86     }
  87
  88     QTreeWidgetItem* item;
  89     if (sp->title().isEmpty())
  90         item = cat;
  91     else
  92         item = new QTreeWidgetItem(cat, QStringList(sp->title()));
  93
  94     item->setData(0, SettingsPageRole, QVariant::fromValue(sp));
  95     pageIsLoaded[sp] = false;
  96     if (!ui.settingsTree->selectedItems().count())
  97         ui.settingsTree->setCurrentItem(item);
  98
  99     setItemState(item);
 100 }
 101
 102 void SettingsDlg::selectPage(SettingsPage* sp)
 103 {
 104     if (!sp) {
 105         _currentPage = nullptr;
 106         ui.settingsStack->setCurrentIndex(0);
 107         ui.pageTitle->setText(tr("Settings"));
 108         return;
 109     }
 110
 111     if (!pageIsLoaded[sp]) {
 112         sp->load();
 113         pageIsLoaded[sp] = true;
 114     }
 115
 116     if (sp != currentPage() && currentPage() != nullptr && currentPage()->hasChanged()) {
 117         int ret = QMessageBox::
 118             warning(this,
 119                     tr("Save changes"),
 120                     tr("There are unsaved changes on the current configuration page. Would you like to apply your changes now?"),
 121                     QMessageBox::Discard | QMessageBox::Save | QMessageBox::Cancel,
 122                     QMessageBox::Cancel);
 123         if (ret == QMessageBox::Save) {
 124             if (!applyChanges())
 125                 sp = currentPage();
 126         }
 127         else if (ret == QMessageBox::Discard) {
 128             undoChanges();
 129         }
 130         else
 131             sp = currentPage();
 132     }
 133
 134     if (sp != currentPage()) {
 135         if (sp->title().isEmpty()) {
 136             ui.pageTitle->setText(sp->category());
 137             setWindowTitle(tr("Configure %1").arg(sp->category()));
 138         }
 139         else {
 140             ui.pageTitle->setText(sp->title());
 141             setWindowTitle(tr("Configure %1").arg(sp->title()));
 142         }
 143
 144         ui.settingsStack->setCurrentWidget(sp);
 145         _currentPage = sp;
 146     }
 147     setButtonStates();
 148 }
 149
 150 void SettingsDlg::itemSelected()
 151 {
 152     QList<QTreeWidgetItem*> items = ui.settingsTree->selectedItems();
 153     SettingsPage* sp = nullptr;
 154     if (!items.isEmpty()) {
 155         sp = qobject_cast<SettingsPage*>(items[0]->data(0, SettingsPageRole).value<QObject*>());
 156     }
 157     selectPage(sp);
 158 }
 159
 160 void SettingsDlg::setButtonStates()
 161 {
 162     SettingsPage* sp = currentPage();
 163     ui.buttonBox->button(QDialogButtonBox::Apply)->setEnabled(sp && sp->hasChanged());
 164     ui.buttonBox->button(QDialogButtonBox::Reset)->setEnabled(sp && sp->hasChanged());
 165     ui.buttonBox->button(QDialogButtonBox::RestoreDefaults)->setEnabled(sp && sp->hasDefaults());
 166 }
 167
 168 void SettingsDlg::buttonClicked(QAbstractButton* button)
 169 {
 170     switch (ui.buttonBox->standardButton(button)) {
 171     case QDialogButtonBox::Ok:
 172         if (currentPage() && currentPage()->hasChanged()) {
 173             if (applyChanges())
 174                 accept();
 175         }
 176         else
 177             accept();
 178         break;
 179     case QDialogButtonBox::Apply:
 180         applyChanges();
 181         break;
 182     case QDialogButtonBox::Cancel:
 183         undoChanges();
 184         reject();
 185         break;
 186     case QDialogButtonBox::Reset:
 187         reload();
 188         break;
 189     case QDialogButtonBox::RestoreDefaults:
 190         loadDefaults();
 191         break;
 192     default:
 193         break;
 194     }
 195 }
 196
 197 bool SettingsDlg::applyChanges()
 198 {
 199     if (!currentPage())
 200         return false;
 201     if (currentPage()->aboutToSave()) {
 202         currentPage()->save();
 203         return true;
 204     }
 205     return false;
 206 }
 207
 208 void SettingsDlg::undoChanges()
 209 {
 210     if (currentPage()) {
 211         currentPage()->load();
 212     }
 213 }
 214
 215 void SettingsDlg::reload()
 216 {
 217     if (!currentPage())
 218         return;
 219     int ret = QMessageBox::question(this,
 220                                     tr("Reload Settings"),
 221                                     tr("Do you like to reload the settings, undoing your changes on this page?"),
 222                                     QMessageBox::Yes | QMessageBox::No,
 223                                     QMessageBox::No);
 224     if (ret == QMessageBox::Yes) {
 225         currentPage()->load();
 226     }
 227 }
 228
 229 void SettingsDlg::loadDefaults()
 230 {
 231     if (!currentPage())
 232         return;
 233     int ret = QMessageBox::question(this,
 234                                     tr("Restore Defaults"),
 235                                     tr("Do you like to restore the default values for this page?"),
 236                                     QMessageBox::RestoreDefaults | QMessageBox::Cancel,
 237                                     QMessageBox::Cancel);
 238     if (ret == QMessageBox::RestoreDefaults) {
 239         currentPage()->defaults();
 240     }
 241 }