Use flatpak portal for autostart and background permission

README.md

@@ -20,6 +20,8 @@ You'll need the following dependencies:
 * libgeoclue-2-dev
 * libgeocode-glib-dev
 * libhandy-1-dev >= 0.90.0
+* libportal-dev
+* libportal-gtk3-dev
 * libical
 * meson
 * valac

data/meson.build

@@ -13,12 +13,6 @@ foreach i : icon_sizes
     )
 endforeach
 
-install_data(
-    'daemon.desktop',
-    install_dir: join_paths(get_option('sysconfdir'), 'xdg', 'autostart'),
-    rename: meson.project_name() + '-daemon.desktop'
-)
-
 install_data(
     'gschema.xml',
     install_dir: join_paths(get_option('datadir'), 'glib-2.0', 'schemas'),

io.elementary.tasks.yml

@@ -137,6 +137,16 @@ modules:
         url: https://download.gnome.org/sources/geocode-glib/3.26/geocode-glib-3.26.4.tar.xz
         sha256: 2d9a6826d158470449a173871221596da0f83ebdcff98b90c7049089056a37aa
 
+  - name: libportal
+    buildsystem: meson
+    config-opts:
+      - '-Ddocs=false'
+      - "-Dbackends=['gtk3']"
+    sources:
+      - type: archive
+        url: https://github.com/flatpak/libportal/releases/download/0.6/libportal-0.6.tar.xz
+        sha256: 88a12c3ba71bc31acff7238c280de697d609cebc50830c3766776ec35abc6566
+
   - name: tasks
     buildsystem: meson
     sources:

meson.build

@@ -40,7 +40,9 @@ tasks_deps = [
     dependency('libedataserver-1.2'),
     dependency('libgeoclue-2.0'),
     dependency('libhandy-1', version: '>=0.90.0'),
-    dependency('libical-glib')
+    dependency('libical-glib'),
+    dependency('libportal'),
+    dependency('libportal-gtk3')
 ]
 
 if libecal_dep.version().version_compare('>=3.46.0')

src/Application.vala

@@ -32,6 +32,8 @@ public class Tasks.Application : Gtk.Application {
         { "text/uri-list", Gtk.TargetFlags.SAME_APP | Gtk.TargetFlags.OTHER_WIDGET, 0 } // TODO: TEXT_URI
     };
 
+    private bool first_activation = true;
+
     public Application () {
         Object (
             application_id: "io.elementary.tasks",
@@ -61,13 +63,19 @@ public class Tasks.Application : Gtk.Application {
 
         add_action (quit_action);
         set_accels_for_action ("app.quit", {"<Control>q"});
+
+        new Tasks.TodayTaskMonitor ().start.begin ();
     }
 
     protected override void activate () {
+        if (first_activation) {
+            first_activation = false;
+            hold ();
+        }
+
         if (run_in_background) {
             run_in_background = false;
-            new Tasks.TodayTaskMonitor ().start.begin ();
-            hold ();
+            request_background.begin ();
             return;
         }
 
@@ -108,6 +116,35 @@ public class Tasks.Application : Gtk.Application {
         active_window.present ();
     }
 
+    public async void request_background () {
+        var portal = new Xdp.Portal ();
+
+        Xdp.Parent? parent = active_window != null ? Xdp.parent_new_gtk (active_window) : null;
+
+        var command = new GenericArray<weak string> ();
+        command.add ("io.elementary.tasks");
+        command.add ("--background");
+
+        try {
+            if (!yield portal.request_background (
+                parent,
+                _("Tasks will automatically start when this device turns on and run when its window is closed so that it can send notifications for due tasks."),
+                (owned) command,
+                Xdp.BackgroundFlags.AUTOSTART,
+                null
+            )) {
+                release ();
+            }
+        } catch (Error e) {
+            if (e is IOError.CANCELLED) {
+                debug ("Request for autostart and background permissions denied: %s", e.message);
+                release ();
+            } else {
+                warning ("Failed to request autostart and background permissions: %s", e.message);
+            }
+        }
+    }
+
     private static Gee.HashMap<string, Gtk.CssProvider>? providers;
     public static void set_task_color (E.Source source, Gtk.Widget widget) {
         if (providers == null) {

src/MainWindow.vala

@@ -139,6 +139,12 @@ public class Tasks.MainWindow : Hdy.ApplicationWindow {
 
         add (paned);
 
+        delete_event.connect (() => {
+            ((Application)application).request_background.begin (() => destroy ());
+
+            return Gdk.EVENT_STOP;
+        });
+
         online_accounts_button.clicked.connect (() => {
             try {
                 AppInfo.launch_default_for_uri ("settings://accounts/online", null);