Use flatpak portal for background and autostart

README.md

@@ -14,6 +14,8 @@ You'll need the following dependencies:
 * libglib2.0-dev
 * libgranite-dev >= 6.0.0
 * libhandy-1-dev >= 1.1.90
+* libportal-dev
+* libportal-gtk3-dev
 * libwebkit2gtk-4.0-dev
 * 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(
     meson.project_name() + '.gschema.xml',
     install_dir: join_paths(get_option('datadir'), 'glib-2.0', 'schemas')

io.elementary.mail.json

@@ -127,6 +127,21 @@
                 }
             ]
         },
+        {
+            "name": "libportal",
+            "buildsystem": "meson",
+            "config-opts": [
+                "-Ddocs=false",
+                "-Dbackends=['gtk3']"
+            ],
+            "sources" : [
+                {
+                    "type": "git",
+                    "url": "https://github.com/flatpak/libportal.git",
+                    "tag": "0.6"
+                }
+            ]
+        },
         {
             "name": "mail",
             "buildsystem": "meson",

meson.build

@@ -25,6 +25,8 @@ else
     webkit2_dep = dependency('webkit2gtk-4.0', version: '>=2.28')
     webkit2_web_extension_dep = dependency('webkit2gtk-web-extension-4.0', version: '>=2.28')
 endif
+libportal_dep = dependency('libportal')
+libportal_gtk_dep = dependency('libportal-gtk3')
 folks_dep = dependency('folks')
 m_dep = meson.get_compiler('c').find_library('m')
 
@@ -39,6 +41,8 @@ dependencies = [
     camel_dep,
     libedataserver_dep,
     libedataserverui_dep,
+    libportal_dep,
+    libportal_gtk_dep,
     webkit2_dep,
     folks_dep,
     m_dep

src/Application.vala

@@ -143,6 +143,13 @@ public class Mail.Application : Gtk.Application {
 
         new InboxMonitor ().start.begin ();
         hold ();
+
+        request_background.begin ((obj, res) => {
+            var result = request_background.end (res);
+            if (!result) {
+                release ();
+            }
+        });
     }
 
     public override void activate () {
@@ -184,6 +191,23 @@ public class Mail.Application : Gtk.Application {
 
         main_window.present ();
     }
+
+    private async bool 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.mail");
+        command.add ("--background");
+
+        try {
+            return yield portal.request_background (parent, _("Mail needs to run in background in order to send notifications."), (owned) command, Xdp.BackgroundFlags.AUTOSTART, null);
+        } catch (Error e) {
+            warning ("Failed to request background and autostart permissions: %s", e.message);
+            return false;
+        }
+    }
 }
 
 public static int main (string[] args) {