Merge pull request ubuntu#1733 from sergio-costas/add-option-to-open-…

…in-updates

Add launcher for "updates"

packages/app_center/assets/app-center-updates.desktop

@@ -0,0 +1,13 @@
+[Desktop Entry]
+# This desktop entry is required to allow Snapd Desktop Integration
+# to open the Snap Center in the "updates" page when the user
+# clicks "Show updates" in a notification. DO NOT DELETE.
+Type=Application
+Version=1.0
+Exec=snap-store --updates %U
+Icon=bin/data/flutter_assets/assets/app-center.png
+Terminal=false
+Categories=System;Utility;PackageManager;SoftwareManagement;Network;Settings;
+Keywords=Ubuntu;Applications;Apps;Store;Software;Snaps;
+Name=App Center Updates
+NoDisplay=true

snap/snapcraft.yaml

@@ -60,20 +60,31 @@ parts:
 apps:
   snap-store:
     command: bin/snap-store
-    environment:
+    environment: &store_env
       RATINGS_SERVICE_URL: 'ratings.ubuntu.com'
       RATINGS_SERVICE_PORT: '443'
       RATINGS_SERVICE_USE_TLS: 'true'
     desktop: bin/data/flutter_assets/assets/app-center.desktop
     extensions: [gnome]
-    plugs:
+    plugs: &store_plugs
       - appstream-metadata
       - desktop
       - desktop-launch
       - network
       - snapd-control
       - packagekit-control
 
+# This entry, along with the corresponding .desktop file, is required
+# to allow Snapd Desktop Integration to open the Snap Center in the
+# "updates" page when the user clicks "Show updates" in a notification.
+# DO NOT DELETE.
+  show-updates:
+    command: bin/snap-store --updates
+    desktop: bin/data/flutter_assets/assets/app-center-updates.desktop
+    environment: *store_env
+    extensions: [gnome]
+    plugs: *store_plugs
+
 slots:
   packagekit-svc:
     interface: dbus