From 696b7a72ffa48aa8ac18e9324daa87e6316a993a Mon Sep 17 00:00:00 2001
From: Alain <alainmh23@gmail.com>
Date: Mon, 9 Dec 2024 11:46:23 -0500
Subject: [PATCH] add cancellable

---
 src/Plug.vala                      |  7 ++++++
 src/Views/OperatingSystemView.vala | 36 ++++++++++++++++++++++--------
 2 files changed, 34 insertions(+), 9 deletions(-)

diff --git a/src/Plug.vala b/src/Plug.vala
index d4fed1d8..f86d0747 100644
--- a/src/Plug.vala
+++ b/src/Plug.vala
@@ -27,6 +27,7 @@ public class About.Plug : Switchboard.Plug {
     private OperatingSystemView operating_system_view;
     private Adw.ToolbarView toolbarview;
     private Gtk.Stack stack;
+    private GLib.Cancellable sponsors_goal_cancellable;
 
     public Plug () {
         GLib.Intl.bindtextdomain (About.GETTEXT_PACKAGE, About.LOCALEDIR);
@@ -91,9 +92,15 @@ public class About.Plug : Switchboard.Plug {
 
     public override void shown () {
         operating_system_view.load_logo.begin ();
+
+        sponsors_goal_cancellable = new GLib.Cancellable ();
+        operating_system_view.load_sponsors_goal (sponsors_goal_cancellable);
     }
 
     public override void hidden () {
+        if (sponsors_goal_cancellable != null) {
+            sponsors_goal_cancellable.cancel ();
+        }
     }
 
     public override void search_callback (string location) {
diff --git a/src/Views/OperatingSystemView.vala b/src/Views/OperatingSystemView.vala
index 5ccda722..f675362b 100644
--- a/src/Views/OperatingSystemView.vala
+++ b/src/Views/OperatingSystemView.vala
@@ -93,6 +93,7 @@ public class About.OperatingSystemView : Gtk.Box {
     private Gtk.Label updates_description;
     private Gtk.Revealer details_button_revealer;
     private Gtk.Stack button_stack;
+    private SponsorUsRow sponsor_us_row;
 
     construct {
         add_css_class ("operating-system-view");
@@ -250,6 +251,8 @@ public class About.OperatingSystemView : Gtk.Box {
         updates_list.get_first_child ().focusable = false;
         updates_list.get_last_child ().focusable = false;
 
+        sponsor_us_row = new SponsorUsRow ("https://github.com/sponsors/elementary");
+
         var sponsor_list = new Gtk.ListBox () {
             margin_bottom = 12,
             margin_top = 12,
@@ -261,7 +264,7 @@ public class About.OperatingSystemView : Gtk.Box {
         sponsor_list.add_css_class ("boxed-list");
         sponsor_list.add_css_class (Granite.STYLE_CLASS_RICH_LIST);
 
-        sponsor_list.append (new SponsorUsRow ("https://github.com/sponsors/elementary"));
+        sponsor_list.append (sponsor_us_row);
 
         var thebasics_link = new LinkRow (
             documentation_url,
@@ -435,6 +438,14 @@ public class About.OperatingSystemView : Gtk.Box {
         }
     }
 
+    public void load_sponsors_goal (GLib.Cancellable cancellable) {
+        if (sponsor_us_row.was_loaded) {
+            return;
+        }
+
+        sponsor_us_row.get_goal_progress (cancellable);
+    }
+
     private async void get_upstream_release () {
         // Upstream distro version (for "Built on" text)
         // FIXME: Add distro specific field to /etc/os-release and use that instead
@@ -735,6 +746,8 @@ public class About.OperatingSystemView : Gtk.Box {
     private class SponsorUsRow : Gtk.ListBoxRow {
         public string uri { get; construct; }
 
+        private Gtk.Label target_label;
+        private Gtk.LevelBar levelbar;
         private Gtk.Revealer details_revealer;
 
         public SponsorUsRow (string uri) {
@@ -743,6 +756,12 @@ public class About.OperatingSystemView : Gtk.Box {
             );
         }
 
+        public bool was_loaded {
+            get {
+                return details_revealer.reveal_child;
+            }
+        }
+
         class construct {
             set_accessible_role (LINK);
         }
@@ -757,19 +776,19 @@ public class About.OperatingSystemView : Gtk.Box {
                 hexpand = true
             };
 
-            var target_label = new Gtk.Label (null) {
+            target_label = new Gtk.Label (null) {
                 halign = START
             };
             target_label.add_css_class (Granite.STYLE_CLASS_DIM_LABEL);
             target_label.add_css_class (Granite.STYLE_CLASS_SMALL_LABEL);
 
-            var level_bar = new Gtk.LevelBar ();
-            level_bar.add_css_class (Granite.STYLE_CLASS_FLAT);
-            level_bar.add_css_class ("pink");
+            levelbar = new Gtk.LevelBar ();
+            levelbar.add_css_class (Granite.STYLE_CLASS_FLAT);
+            levelbar.add_css_class ("pink");
 
             var details_box = new Gtk.Box (VERTICAL, 0);
             details_box.append (target_label);
-            details_box.append (level_bar);
+            details_box.append (levelbar);
 
             details_revealer = new Gtk.Revealer () {
                 child = details_box,
@@ -788,13 +807,12 @@ public class About.OperatingSystemView : Gtk.Box {
 
             child = grid;
             add_css_class ("link");
-            get_goal_progress (level_bar, target_label);
         }
 
-        private void get_goal_progress (Gtk.LevelBar levelbar, Gtk.Label target_label) {
+        public void get_goal_progress (GLib.Cancellable cancellable) {
             var message = new Soup.Message ("GET", "https://elementary.io/api/sponsors_goal");
             var session = new Soup.Session ();
-            session.send_and_read_async.begin (message, GLib.Priority.DEFAULT, null , (obj, res) => {
+            session.send_and_read_async.begin (message, GLib.Priority.DEFAULT, cancellable , (obj, res) => {
                 try {
                     var bytes = session.send_and_read_async.end (res);