desktop-shell: Add beginning of pop-up menu to panel
diff --git a/clients/desktop-shell.c b/clients/desktop-shell.c
index 496d0d1..7ad6f02 100644
--- a/clients/desktop-shell.c
+++ b/clients/desktop-shell.c
@@ -46,6 +46,7 @@
 
 struct panel {
 	struct window *window;
+	struct window *menu;
 };
 
 struct panel_item {
@@ -67,6 +68,21 @@
 }
 
 static void
+show_menu(struct panel *panel, struct input *input)
+{
+	int32_t x, y, width = 200, height = 200;
+	struct display *display;
+
+	input_get_position(input, &x, &y);
+	display = window_get_display(panel->window);
+	panel->menu = window_create_transient(display, panel->window,
+					      x - 10, y - 10, width, height);
+
+	window_draw(panel->menu);
+	window_flush(panel->menu);
+}
+
+static void
 panel_activate_item(struct panel *panel, struct panel_item *item)
 {
 	pid_t pid;
@@ -164,6 +180,11 @@
 		window_schedule_redraw(panel->window);
 		if (state == 0)
 			panel_activate_item(panel, pi);
+	} else if (button == BTN_RIGHT) {
+		if (state)
+			show_menu(panel, input);
+		else
+			window_destroy(panel->menu);
 	}
 }