Move the manage_*-functions into their own file as they got quite large

include/manage.h

@@ -0,0 +1,42 @@
+/*
+ * vim:ts=8:expandtab
+ *
+ * i3 - an improved dynamic tiling window manager
+ *
+ * (c) 2009 Michael Stapelberg and contributors
+ *
+ * See file LICENSE for license information.
+ *
+ */
+#include <xcb/xcb.h>
+
+#include "data.h"
+
+#ifndef _MANAGE_H
+#define _MANAGE_H
+
+/**
+ * Go through all existing windows (if the window manager is restarted) and manage them
+ *
+ */
+void manage_existing_windows(xcb_connection_t *conn, xcb_property_handlers_t *prophs, xcb_window_t root);
+
+/**
+ * Do some sanity checks and then reparent the window.
+ *
+ */
+void manage_window(xcb_property_handlers_t *prophs, xcb_connection_t *conn,
+                   xcb_window_t window, window_attributes_t wa);
+
+/**
+ * reparent_window() gets called when a new window was opened and becomes a child of the root
+ * window, or it gets called by us when we manage the already existing windows at startup.
+ *
+ * Essentially, this is the point where we take over control.
+ *
+ */
+void reparent_window(xcb_connection_t *conn, xcb_window_t child,
+                     xcb_visualid_t visual, xcb_window_t root, uint8_t depth,
+                     int16_t x, int16_t y, uint16_t width, uint16_t height);
+
+#endif