Prevent opening windows and external browsers on the Steam Deck

launcher/resources.qrc

@@ -2,6 +2,7 @@
     <qresource prefix="/">
         <file>ui/Components/FormFileDelegate.qml</file>
         <file>ui/Components/FormFolderDelegate.qml</file>
+        <file>ui/Pages/BrowserPage.qml</file>
         <file>ui/Pages/LoginPage.qml</file>
         <file>ui/Pages/MainPage.qml</file>
         <file>ui/Pages/NewsPage.qml</file>

launcher/ui/Pages/BrowserPage.qml

@@ -0,0 +1,26 @@
+// SPDX-FileCopyrightText: 2023 Joshua Goins <josh@redstrate.com>
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+import QtQuick 2.15
+import QtQuick.Window 2.15
+import org.kde.kirigami 2.20 as Kirigami
+import QtQuick.Controls 2.15 as Controls
+import QtQuick.Layouts 1.15
+import QtWebEngine 1.10
+import com.redstrate.astra 1.0
+
+Kirigami.Page {
+    id: page
+
+    property var url
+
+    title: i18n("Web Browser")
+
+    padding: 0
+
+    WebEngineView {
+        anchors.fill: parent
+
+        url: page.url
+    }
+}

launcher/ui/main.qml

@@ -52,6 +52,24 @@ Kirigami.ApplicationWindow {
         }
     }
 
+    function pushDialogLayer(url) {
+        if (LauncherCore.isSteamDeck) {
+            pageStack.layers.push(url)
+        } else {
+            pageStack.pushDialogLayer(url)
+        }
+    }
+
+    function openUrl(url) {
+        if (LauncherCore.isSteamDeck) {
+            pageStack.layers.push('qrc:/ui/Pages/BrowserPage.qml', {
+                url: url
+            })
+        } else {
+            Qt.openUrlExternally(url)
+        }
+    }
+
     Connections {
         target: LauncherCore