Right click menu to create desktop shortcuts

Closes: pop-os#170

Cargo.toml

@@ -46,6 +46,7 @@ nix = "0.28"
 clap = { version = "4.4.8", features = ["derive"] }
 switcheroo-control = { git = "https://github.com/pop-os/dbus-settings-bindings" }
 cosmic-app-list-config = { git = "https://github.com/pop-os/cosmic-applets" }
+dirs = "5"
 
 [profile.release]
 lto = "thin"

i18n/en/cosmic_app_library.ftl

@@ -16,6 +16,7 @@ run-on = Run on {$gpu}
 run-on-default = (Default)
 remove = Move to library home
 create-new = Create new folder
+add-desktop-shortcut = Add desktop shortcut
 add-group = Add group
 delete = Delete
 rename = Rename

src/app.rs

@@ -312,6 +312,7 @@ enum Message {
     GpuUpdate(Option<Vec<Gpu>>),
     PinToAppTray(usize),
     UnPinFromAppTray(usize),
+    DesktopShortcut(usize),
     AppListConfig(AppListConfig),
 }
 
@@ -760,6 +761,20 @@ impl cosmic::Application for CosmicAppLibrary {
                         .remove_pinned(&pinned_id, &app_list_helper);
                 }
             }
+            Message::DesktopShortcut(i) => {
+                if let Some(entry) = self.entry_path_input.get(i) {
+                    let entry = Arc::clone(entry);
+                    return Task::perform(
+                        async move {
+                            if let Err(e) = desktop_shortcut(entry).await {
+                                error!("Failed copying desktop entry to desktop: {e:?}");
+                            }
+                            cosmic::app::Message::None
+                        },
+                        |x| x,
+                    );
+                }
+            }
             Message::AppListConfig(config) => {
                 self.app_list_config = config;
             }
@@ -847,6 +862,14 @@ impl cosmic::Application for CosmicAppLibrary {
                 }
             }
 
+            // Desktop shortcut
+            list_column.push(divider::horizontal::light().into());
+            list_column.push(
+                menu_button(body(fl!("add-desktop-shortcut")))
+                    .on_press(Message::DesktopShortcut(*i))
+                    .into(),
+            );
+
             // add to pinned
             let svg_accent = Rc::new(|theme: &cosmic::Theme| {
                 let color = theme.cosmic().accent_color().into();
@@ -870,7 +893,6 @@ impl cosmic::Application for CosmicAppLibrary {
             } else {
                 Message::PinToAppTray(*i)
             });
-            list_column.push(divider::horizontal::light().into());
             list_column.push(pin_to_app_tray.into());
 
             if self.cur_group > 0 {
@@ -1448,3 +1470,15 @@ impl cosmic::Application for CosmicAppLibrary {
         (self_, Task::none())
     }
 }
+
+/// Copy application desktop entry to the user's desktop
+async fn desktop_shortcut(entry: Arc<DesktopEntryData>) -> tokio::io::Result<u64> {
+    let source = entry
+        .path
+        .as_deref()
+        .ok_or(tokio::io::Error::other("Desktop entry doesn't have a path"))?;
+    let dest = dirs::desktop_dir()
+        .ok_or(tokio::io::Error::other("User doesn't have a desktop dir"))?
+        .join(format!("{}.desktop", &*entry.name));
+    tokio::fs::copy(source, dest).await
+}