swc

commit 533d15f0207be6debc2f14c7bbe6c50c8ba2ceef
parent b9f6dd5120b4b7d80e1d51f0598f39a3dfc7555b
Author: Michael Forney <mforney@mforney.org>
Date:   Sun, 30 Jun 2013 22:12:21 -0700

Add focus change signal

Diffstat:
M
input_focus.c
 | 
13
+++++++++++++
M
input_focus.h
 | 
12
++++++++++++

2 files changed, 25 insertions(+), 0 deletions(-)
diff --git a/input_focus.c b/input_focus.c
@@ -24,6 +24,7 @@
 #include "input_focus.h"
 #include "surface.h"
 #include "util.h"
+#include "event.h"
 
 static inline void focus(struct swc_input_focus * input_focus,
                          struct swc_surface * surface,
@@ -55,6 +56,7 @@ bool swc_input_focus_initialize(struct swc_input_focus * input_focus,
     input_focus->handler = handler;
 
     wl_list_init(&input_focus->resources);
+    wl_signal_init(&input_focus->event_signal);
 
     return true;
 }
@@ -102,10 +104,17 @@ void swc_input_focus_set(struct swc_input_focus * input_focus,
     struct wl_display * display;
     struct wl_resource * resource;
     uint32_t serial;
+    struct swc_input_focus_event_data data;
+    struct swc_event event;
+
+    event.type = SWC_INPUT_FOCUS_EVENT_CHANGED;
+    event.data = &data;
 
     if (surface == input_focus->surface)
         return;
 
+    data.old = input_focus->surface;
+
     /* Unfocus previously focused surface. */
     unfocus(input_focus);
 
@@ -123,6 +132,10 @@ void swc_input_focus_set(struct swc_input_focus * input_focus,
         input_focus->resource = NULL;
     }
 
+    data.new = input_focus->surface;
+
+    wl_signal_emit(&input_focus->event_signal, &event);
+
     return;
 }
 
diff --git a/input_focus.h b/input_focus.h
@@ -29,6 +29,16 @@
 
 struct swc_surface;
 
+enum swc_input_focus_event_type
+{
+    SWC_INPUT_FOCUS_EVENT_CHANGED
+};
+
+struct swc_input_focus_event_data
+{
+    struct swc_surface * old, * new;
+};
+
 struct swc_input_focus_handler
 {
     void (* enter)(struct swc_input_focus_handler * handler,
@@ -46,6 +56,8 @@ struct swc_input_focus
 
     struct swc_input_focus_handler * handler;
     struct wl_list resources;
+
+    struct wl_signal event_signal;
 };
 
 bool swc_input_focus_initialize(struct swc_input_focus * input_focus,