[Settings Dialog] Show Trash settings only if authorized

If this KCM is disabled through KIOSK restriction opening it would result in an error message.
Hide the entry altogether in this case.

Differential Revision: https://phabricator.kde.org/D4502

2 files changed, 18 insertions, 5 deletions

diff --git a/src/settings/dolphinsettingsdialog.cpp b/src/settings/dolphinsettingsdialog.cpp
index 9eb57f10b..5314c24ed 100644
--- a/src/settings/dolphinsettingsdialog.cpp
+++ b/src/settings/dolphinsettingsdialog.cpp
@@ -29,6 +29,7 @@
 #include "viewmodes/viewsettingspage.h"
 #include "trash/trashsettingspage.h"
 
+#include <KAuthorized>
 #include <KWindowConfig>
 #include <KLocalizedString>
 #include <QIcon>
@@ -85,11 +86,13 @@ DolphinSettingsDialog::DolphinSettingsDialog(const QUrl& url, QWidget* parent) :
     connect(servicesSettingsPage, &ServicesSettingsPage::changed, this, &DolphinSettingsDialog::enableApply);
 
     // Trash
-    TrashSettingsPage* trashSettingsPage = new TrashSettingsPage(this);
-    KPageWidgetItem* trashSettingsFrame = addPage(trashSettingsPage,
-                                                   i18nc("@title:group", "Trash"));
-    trashSettingsFrame->setIcon(QIcon::fromTheme(QStringLiteral("trash-empty")));
-    connect(trashSettingsPage, &TrashSettingsPage::changed, this, &DolphinSettingsDialog::enableApply);
+    auto* trashSettingsPage = createTrashSettingsPage(this);
+    if (trashSettingsPage) {
+        KPageWidgetItem* trashSettingsFrame = addPage(trashSettingsPage,
+                                                     i18nc("@title:group", "Trash"));
+        trashSettingsFrame->setIcon(QIcon::fromTheme(QStringLiteral("trash-empty")));
+        connect(trashSettingsPage, &TrashSettingsPage::changed, this, &DolphinSettingsDialog::enableApply);
+    }
 
     // General
     GeneralSettingsPage* generalSettingsPage = new GeneralSettingsPage(url, this);
@@ -145,3 +148,11 @@ void DolphinSettingsDialog::restoreDefaults()
     }
 }
 
+SettingsPageBase *DolphinSettingsDialog::createTrashSettingsPage(QWidget *parent)
+{
+    if (!KAuthorized::authorizeControlModule(QStringLiteral("kcmtrash.desktop"))) {
+        return nullptr;
+    }
+
+    return new TrashSettingsPage(parent);
+}
diff --git a/src/settings/dolphinsettingsdialog.h b/src/settings/dolphinsettingsdialog.h
index 93f714799..194af28fc 100644
--- a/src/settings/dolphinsettingsdialog.h
+++ b/src/settings/dolphinsettingsdialog.h
@@ -49,6 +49,8 @@ private slots:
     void restoreDefaults();
 
 private:
+    static SettingsPageBase *createTrashSettingsPage(QWidget *parent);
+
     QList<SettingsPageBase*> m_pages;
 };