first step of the big refactoring ("tree" branch).

From here on, we can track changes. It made no sense to put the
development up to this point into git.

include/floating.h

@@ -11,14 +11,15 @@
 #ifndef _FLOATING_H
 #define _FLOATING_H
 
+#include "tree.h"
+
 /** Callback for dragging */
-typedef void(*callback_t)(xcb_connection_t*, Client*, Rect*, uint32_t, uint32_t, void*);
+typedef void(*callback_t)(Con*, Rect*, uint32_t, uint32_t, void*);
 
 /** Macro to create a callback function for dragging */
 #define DRAGGING_CB(name) \
-        static void name(xcb_connection_t *conn, Client *client, \
-                         Rect *old_rect, uint32_t new_x, uint32_t new_y, \
-                         void *extra)
+        static void name(Con *con, Rect *old_rect, uint32_t new_x, \
+                         uint32_t new_y, void *extra)
 
 /** On which border was the dragging initiated? */
 typedef enum { BORDER_LEFT   = (1 << 0),
@@ -36,9 +37,9 @@ typedef enum { BORDER_LEFT   = (1 << 0),
  * the user.
  *
  */
-void toggle_floating_mode(xcb_connection_t *conn, Client *client,
-                          bool automatic);
+void toggle_floating_mode(Con *con, bool automatic);
 
+#if 0
 /**
  * Removes the floating client from its workspace and attaches it to the new
  * workspace. This is centralized here because it may happen if you move it
@@ -56,13 +57,14 @@ void floating_assign_to_workspace(Client *client, Workspace *new_workspace);
 int floating_border_click(xcb_connection_t *conn, Client *client,
                           xcb_button_press_event_t *event);
 
+#endif
 /**
  * Called when the user clicked on the titlebar of a floating window.
  * Calls the drag_pointer function with the drag_window callback
  *
  */
-void floating_drag_window(xcb_connection_t *conn, Client *client,
-                          xcb_button_press_event_t *event);
+void floating_drag_window(Con *con, xcb_button_press_event_t *event);
+#if 0
 
 /**
  * Called when the user clicked on a floating window while holding the
@@ -97,6 +99,7 @@ void floating_move(xcb_connection_t *conn, Client *currently_focused,
  */
 void floating_toggle_hide(xcb_connection_t *conn, Workspace *workspace);
 
+#endif
 /**
  * This function grabs your pointer and lets you drag stuff around (borders).
  * Every time you move your mouse, an XCB_MOTION_NOTIFY event will be received
@@ -105,7 +108,7 @@ void floating_toggle_hide(xcb_connection_t *conn, Workspace *workspace);
  * the event and the new coordinates (x, y).
  *
  */
-void drag_pointer(xcb_connection_t *conn, Client *client, xcb_button_press_event_t *event,
+void drag_pointer(Con *con, xcb_button_press_event_t *event,
                   xcb_window_t confine_to, border_t border, callback_t callback,
                   void *extra);