commit a950bc6

window: Add parent and PARENT_CHANGED event

 1@@ -75,7 +75,15 @@ enum
 2     /**
 3      * Sent when the window's size has changed.
 4      */
 5-    SWC_WINDOW_RESIZED
 6+    SWC_WINDOW_RESIZED,
 7+
 8+    /**
 9+     * Sent when the window's parent changes.
10+     *
11+     * This can occur when the window becomes a transient for another window,
12+     * or becomes a toplevel window.
13+     */
14+    SWC_WINDOW_PARENT_CHANGED
15 };
16 
17 struct swc_window
18@@ -90,6 +98,8 @@ struct swc_window
19         SWC_WINDOW_STATE_WITHDRAWN,
20         SWC_WINDOW_STATE_TOPLEVEL
21     } state;
22+
23+    struct swc_window * parent;
24 };
25 
26 /**

 1@@ -120,6 +120,7 @@ bool window_initialize(struct window * window, const struct window_impl * impl,
 2     window->base.title = NULL;
 3     window->base.class = NULL;
 4     window->base.state = SWC_WINDOW_STATE_WITHDRAWN;
 5+    window->base.parent = NULL;
 6     wl_signal_init(&window->base.event_signal);
 7     window->surface = surface;
 8     window->impl = impl;
 9@@ -163,3 +164,12 @@ void window_set_state(struct window * window, uint32_t state)
10     swc_send_event(&window->base.event_signal, SWC_WINDOW_STATE_CHANGED, NULL);
11 }
12 
13+void window_set_parent(struct window * window, struct window * parent)
14+{
15+    if (window->base.parent == &parent->base)
16+        return;
17+
18+    window->base.parent = &parent->base;
19+    swc_send_event(&window->base.event_signal, SWC_WINDOW_PARENT_CHANGED, NULL);
20+}
21+

1@@ -58,5 +58,7 @@ void window_set_class(struct window * window, const char * class);
2 
3 void window_set_state(struct window * window, uint32_t state);
4 
5+void window_set_parent(struct window * window, struct window * parent);
6+
7 #endif
8