swc

commit a950bc6999605bb21402778507cb8da6bc43c7ad
parent 75c98dc871905eb09c9ad0a4dcaea78bc1f46966
Author: Michael Forney <mforney@mforney.org>
Date:   Tue, 11 Feb 2014 23:49:01 -0800

window: Add parent and PARENT_CHANGED event

Diffstat:
M
libswc/swc.h
 | 
12
+++++++++++-
M
libswc/window.c
 | 
10
++++++++++
M
libswc/window.h
 | 
2
++

3 files changed, 23 insertions(+), 1 deletion(-)
diff --git a/libswc/swc.h b/libswc/swc.h
@@ -75,7 +75,15 @@ enum
     /**
      * Sent when the window's size has changed.
      */
-    SWC_WINDOW_RESIZED
+    SWC_WINDOW_RESIZED,
+
+    /**
+     * Sent when the window's parent changes.
+     *
+     * This can occur when the window becomes a transient for another window,
+     * or becomes a toplevel window.
+     */
+    SWC_WINDOW_PARENT_CHANGED
 };
 
 struct swc_window
@@ -90,6 +98,8 @@ struct swc_window
         SWC_WINDOW_STATE_WITHDRAWN,
         SWC_WINDOW_STATE_TOPLEVEL
     } state;
+
+    struct swc_window * parent;
 };
 
 /**
diff --git a/libswc/window.c b/libswc/window.c
@@ -120,6 +120,7 @@ bool window_initialize(struct window * window, const struct window_impl * impl,
     window->base.title = NULL;
     window->base.class = NULL;
     window->base.state = SWC_WINDOW_STATE_WITHDRAWN;
+    window->base.parent = NULL;
     wl_signal_init(&window->base.event_signal);
     window->surface = surface;
     window->impl = impl;
@@ -163,3 +164,12 @@ void window_set_state(struct window * window, uint32_t state)
     swc_send_event(&window->base.event_signal, SWC_WINDOW_STATE_CHANGED, NULL);
 }
 
+void window_set_parent(struct window * window, struct window * parent)
+{
+    if (window->base.parent == &parent->base)
+        return;
+
+    window->base.parent = &parent->base;
+    swc_send_event(&window->base.event_signal, SWC_WINDOW_PARENT_CHANGED, NULL);
+}
+
diff --git a/libswc/window.h b/libswc/window.h
@@ -58,5 +58,7 @@ void window_set_class(struct window * window, const char * class);
 
 void window_set_state(struct window * window, uint32_t state);
 
+void window_set_parent(struct window * window, struct window * parent);
+
 #endif