stop using python internally. add an event dispatcher

1 files changed, 151 insertions, 0 deletions

diff --git a/openbox/dispatch.c b/openbox/dispatch.c
new file mode 100644
index 00000000..c710dec7
--- /dev/null
+++ b/openbox/dispatch.c
@@ -0,0 +1,151 @@
+#include "dispatch.h"
+
+#include <glib.h>
+
+static GSList **funcs;
+
+void dispatch_startup()
+{
+    guint i;
+    EventType j;
+
+    i = 0;
+    j = EVENT_RANGE;
+    while (j > 1) {
+        j >>= 1;
+        ++i;
+    }
+    funcs = g_new(GSList*, i);
+
+    for (i = 0, j = 1; j < EVENT_RANGE; ++i, j <<= 1)
+        funcs[i] = NULL;
+}
+
+void dispatch_shutdown()
+{
+    guint i;
+    EventType j;
+
+    for (i = 0, j = 1; j < EVENT_RANGE; ++i, j <<= 1)
+        g_slist_free(funcs[i]);
+
+    g_free(funcs);
+}
+
+void dispatch_register(EventHandler h, EventMask mask)
+{
+    guint i;
+    EventType j;
+
+    while (mask) {
+        for (i = 0, j = 1; j < EVENT_RANGE; ++i, j <<= 1)
+            if (mask & j) {
+                funcs[i] = g_slist_append(funcs[i], h);
+                mask ^= j; /* remove from the mask */
+            }
+        g_assert(j >= EVENT_RANGE); /* an invalid event is in the mask */
+    }
+}
+
+void dispatch_x(XEvent *xe)
+{
+    EventType e;
+    guint i;
+    GSList *it;
+    ObEvent obe;
+
+    switch (xe->type) {
+    case EnterNotify:
+        e = Event_X_EnterNotify;
+        break;
+    case LeaveNotify:
+        e = Event_X_LeaveNotify;
+        break;
+    case KeyPress:
+        e = Event_X_KeyPress;
+        break;
+    case KeyRelease:
+        e = Event_X_KeyRelease;
+        break;
+    case ButtonPress:
+        e = Event_X_ButtonPress;
+        break;
+    case ButtonRelease:
+        e = Event_X_ButtonRelease;
+        break;
+    case MotionNotify:
+        e = Event_X_MotionNotify;
+        break;
+    default:
+        return;
+    }
+
+    obe.type = e;
+    obe.data.x = xe;
+
+    i = 0;
+    while (e > 1) {
+        e >>= 1;
+        ++i;
+    }
+
+    for (it = funcs[i]; it != NULL; it = it->next)
+        ((EventHandler)it->data)(&obe);
+}
+
+void dispatch_client(EventType e, Client *c)
+{
+    guint i;
+    GSList *it;
+    ObEvent obe;
+
+    obe.type = e;
+    obe.data.client = c;
+
+    i = 0;
+    while (e > 1) {
+        e >>= 1;
+        ++i;
+    }
+
+    for (it = funcs[i]; it != NULL; it = it->next)
+        ((EventHandler)it->data)(&obe);
+}
+
+void dispatch_ob(EventType e)
+{
+    guint i;
+    GSList *it;
+    ObEvent obe;
+
+    obe.type = e;
+
+    i = 0;
+    while (e > 1) {
+        e >>= 1;
+        ++i;
+    }
+
+    for (it = funcs[i]; it != NULL; it = it->next)
+        ((EventHandler)it->data)(&obe);
+}
+
+void dispatch_signal(int signal)
+{
+    guint i;
+    EventType e = Event_Signal;
+    GSList *it;
+    ObEvent obe;
+
+    obe.type = e;
+    obe.data.signal = signal;
+
+    i = 0;
+    while (e > 1) {
+        e >>= 1;
+        ++i;
+    }
+
+    for (it = funcs[i]; it != NULL; it = it->next)
+        ((EventHandler)it->data)(&obe);
+}