commit 533d15f

Add focus change signal

 1@@ -24,6 +24,7 @@
 2 #include "input_focus.h"
 3 #include "surface.h"
 4 #include "util.h"
 5+#include "event.h"
 6 
 7 static inline void focus(struct swc_input_focus * input_focus,
 8                          struct swc_surface * surface,
 9@@ -55,6 +56,7 @@ bool swc_input_focus_initialize(struct swc_input_focus * input_focus,
10     input_focus->handler = handler;
11 
12     wl_list_init(&input_focus->resources);
13+    wl_signal_init(&input_focus->event_signal);
14 
15     return true;
16 }
17@@ -102,10 +104,17 @@ void swc_input_focus_set(struct swc_input_focus * input_focus,
18     struct wl_display * display;
19     struct wl_resource * resource;
20     uint32_t serial;
21+    struct swc_input_focus_event_data data;
22+    struct swc_event event;
23+
24+    event.type = SWC_INPUT_FOCUS_EVENT_CHANGED;
25+    event.data = &data;
26 
27     if (surface == input_focus->surface)
28         return;
29 
30+    data.old = input_focus->surface;
31+
32     /* Unfocus previously focused surface. */
33     unfocus(input_focus);
34 
35@@ -123,6 +132,10 @@ void swc_input_focus_set(struct swc_input_focus * input_focus,
36         input_focus->resource = NULL;
37     }
38 
39+    data.new = input_focus->surface;
40+
41+    wl_signal_emit(&input_focus->event_signal, &event);
42+
43     return;
44 }
45 

 1@@ -29,6 +29,16 @@
 2 
 3 struct swc_surface;
 4 
 5+enum swc_input_focus_event_type
 6+{
 7+    SWC_INPUT_FOCUS_EVENT_CHANGED
 8+};
 9+
10+struct swc_input_focus_event_data
11+{
12+    struct swc_surface * old, * new;
13+};
14+
15 struct swc_input_focus_handler
16 {
17     void (* enter)(struct swc_input_focus_handler * handler,
18@@ -46,6 +56,8 @@ struct swc_input_focus
19 
20     struct swc_input_focus_handler * handler;
21     struct wl_list resources;
22+
23+    struct wl_signal event_signal;
24 };
25 
26 bool swc_input_focus_initialize(struct swc_input_focus * input_focus,