Dialogs: Implement InhibitShortcutsDialog (#1948)

src/Dialogs.vala

@@ -196,4 +196,60 @@ namespace Gala {
             }
         }
     }
+
+    public class InhibitShortcutsDialog : AccessDialog, Meta.InhibitShortcutsDialog {
+        public Meta.Window window {
+            owned get { return parent; }
+            construct { parent = value; }
+        }
+
+        public App app { get; construct; }
+
+        public InhibitShortcutsDialog (Gala.App app, Meta.Window window) {
+            Object (app: app, window: window);
+        }
+
+        construct {
+            icon = "preferences-desktop-keyboard";
+
+            var window_title = app.name;
+            if (window_title != null) {
+                title = _("“%s” wants to inhibit system shortcuts").printf (window_title);
+            } else {
+                title = _("An application wants to inhibit system shortcuts");
+            }
+
+            body = _("All system shortcuts will be redirected to the application.");
+            accept_label = _("Allow");
+            deny_label = _("Deny");
+        }
+
+        public override void show () {
+            if (path != null) {
+                return;
+            }
+
+            // Naive check to always allow inhibiting by our settings app. This is needed for setting custom shortcuts
+            if (app.id == "io.elementary.settings.desktop") {
+                on_response (0);
+                return;
+            }
+
+            base.show ();
+        }
+
+        public void hide () {
+            if (path != null) {
+                close ();
+            }
+        }
+
+        protected override void on_response (uint response_id) {
+            if (response_id == 0) {
+                base.response (Meta.InhibitShortcutsDialogResponse.ALLOW);
+            } else {
+                base.response (Meta.InhibitShortcutsDialogResponse.DENY);
+            }
+        }
+    }
 }

src/WindowManager.vala

@@ -2336,6 +2336,10 @@ namespace Gala {
             return new CloseDialog (window_tracker.get_app_for_window (window), window);
         }
 
+        public override Meta.InhibitShortcutsDialog create_inhibit_shortcuts_dialog (Meta.Window window) {
+            return new InhibitShortcutsDialog (window_tracker.get_app_for_window (window), window);
+        }
+
         public override unowned Meta.PluginInfo? plugin_info () {
             return info;
         }