Prompt user to save/discard changes upon closing config dialog

[dolphin.git] / src / settings / dolphinsettingsdialog.cpp

diff --git a/src/settings/dolphinsettingsdialog.cpp b/src/settings/dolphinsettingsdialog.cpp
index 5c0d43d836fc1244648cf875eb3a84bda822ea04..530ce9d75907b0dc1d0c18954f847891906ae03d 100644 (file)
--- a/src/settings/dolphinsettingsdialog.cpp
+++ b/src/settings/dolphinsettingsdialog.cpp
@@ -32,16 +32,18 @@
 #include <KAuthorized>
 #include <KLocalizedString>
 #include <KWindowConfig>
+#include <KMessageBox>
 
 #include <QPushButton>
 
 DolphinSettingsDialog::DolphinSettingsDialog(const QUrl& url, QWidget* parent) :
     KPageDialog(parent),
-    m_pages()
+    m_pages(),
+    m_unsavedChanges(false)
 
 {
     const QSize minSize = minimumSize();
-    setMinimumSize(QSize(512, minSize.height()));
+    setMinimumSize(QSize(540, minSize.height()));
 
     setFaceType(List);
     setWindowTitle(i18nc("@title:window", "Dolphin Preferences"));
@@ -55,6 +57,13 @@ DolphinSettingsDialog::DolphinSettingsDialog(const QUrl& url, QWidget* parent) :
     connect(box->button(QDialogButtonBox::Apply), &QAbstractButton::clicked, this, &DolphinSettingsDialog::applySettings);
     connect(box->button(QDialogButtonBox::RestoreDefaults), &QAbstractButton::clicked, this, &DolphinSettingsDialog::restoreDefaults);
 
+    // General
+    GeneralSettingsPage* generalSettingsPage = new GeneralSettingsPage(url, this);
+    KPageWidgetItem* generalSettingsFrame = addPage(generalSettingsPage,
+                                                    i18nc("@title:group General settings", "General"));
+    generalSettingsFrame->setIcon(QIcon::fromTheme(QStringLiteral("view-preview")));
+    connect(generalSettingsPage, &GeneralSettingsPage::changed, this, &DolphinSettingsDialog::enableApply);
+
     // Startup
     StartupSettingsPage* startupSettingsPage = new StartupSettingsPage(url, this);
     KPageWidgetItem* startupSettingsFrame = addPage(startupSettingsPage,
@@ -92,13 +101,7 @@ DolphinSettingsDialog::DolphinSettingsDialog(const QUrl& url, QWidget* parent) :
         connect(trashSettingsPage, &TrashSettingsPage::changed, this, &DolphinSettingsDialog::enableApply);
     }
 
-    // General
-    GeneralSettingsPage* generalSettingsPage = new GeneralSettingsPage(url, this);
-    KPageWidgetItem* generalSettingsFrame = addPage(generalSettingsPage,
-                                                    i18nc("@title:group General settings", "General"));
-    generalSettingsFrame->setIcon(QIcon::fromTheme(QStringLiteral("view-preview")));
-    connect(generalSettingsPage, &GeneralSettingsPage::changed, this, &DolphinSettingsDialog::enableApply);
-
+    m_pages.append(generalSettingsPage);
     m_pages.append(startupSettingsPage);
     m_pages.append(viewSettingsPage);
     m_pages.append(navigationSettingsPage);
@@ -106,7 +109,6 @@ DolphinSettingsDialog::DolphinSettingsDialog(const QUrl& url, QWidget* parent) :
     if (trashSettingsPage) {
         m_pages.append(trashSettingsPage);
     }
-    m_pages.append(generalSettingsPage);
 
     const KConfigGroup dialogConfig(KSharedConfig::openConfig(QStringLiteral("dolphinrc")), "SettingsDialog");
     KWindowConfig::restoreWindowSize(windowHandle(), dialogConfig);
@@ -121,6 +123,7 @@ DolphinSettingsDialog::~DolphinSettingsDialog()
 void DolphinSettingsDialog::enableApply()
 {
     buttonBox()->button(QDialogButtonBox::Apply)->setEnabled(true);
+    m_unsavedChanges = true;
 }
 
 void DolphinSettingsDialog::applySettings()
@@ -139,6 +142,7 @@ void DolphinSettingsDialog::applySettings()
         settings->save();
     }
     buttonBox()->button(QDialogButtonBox::Apply)->setEnabled(false);
+    m_unsavedChanges = false;
 }
 
 void DolphinSettingsDialog::restoreDefaults()
@@ -148,6 +152,35 @@ void DolphinSettingsDialog::restoreDefaults()
     }
 }
 
+void DolphinSettingsDialog::closeEvent(QCloseEvent* event)
+{
+    if (!m_unsavedChanges) {
+        event->accept();
+        return;
+    }
+
+    const auto response = KMessageBox::warningYesNoCancel(this,
+                                        i18n("You have have unsaved changes. Do you want to apply the changes or discard them?"),
+                                        i18n("Warning"),
+                                        KStandardGuiItem::save(),
+                                        KStandardGuiItem::discard(),
+                                        KStandardGuiItem::cancel());
+    switch (response) {
+        case KMessageBox::Yes:
+            applySettings();
+            Q_FALLTHROUGH();
+        case KMessageBox::No:
+            event->accept();
+            break;
+        case KMessageBox::Cancel:
+            event->ignore();
+            break;
+        default:
+            break;
+    }
+}
+
+
 SettingsPageBase *DolphinSettingsDialog::createTrashSettingsPage(QWidget *parent)
 {
     if (!KAuthorized::authorizeControlModule(QStringLiteral("kcmtrash.desktop"))) {