Correctly handle _NET_WM_WINDOW_TYPE == _NET_WM_WINDOW_TYPE_DOCK (for dzen2 -dock)

include/data.h

@@ -63,6 +63,9 @@ struct Workspace {
 
         Client *fullscreen_client;
 
+        /* Contains all clients with _NET_WM_WINDOW_TYPE == _NET_WM_WINDOW_TYPE_DOCK */
+        SLIST_HEAD(dock_clients_head, Client) dock_clients;
+
         /* Backpointer to the screen this workspace is on */
         i3Screen *screen;
 
@@ -125,6 +128,10 @@ struct Client {
         /* x, y, width, height */
         Rect rect;
 
+        /* Height which was determined by reading the _NET_WM_STRUT_PARTIAL top/bottom of the screen
+           reservation */
+        int desired_height;
+
         /* Name */
         char *name;
         int name_len;
@@ -132,6 +139,12 @@ struct Client {
         /* fullscreen is pretty obvious */
         bool fullscreen;
 
+        enum { TITLEBAR_TOP = 0, TITLEBAR_LEFT, TITLEBAR_RIGHT, TITLEBAR_BOTTOM, TITLEBAR_OFF } titlebar_position;
+
+        /* If a client is set as a dock, it is placed at the very bottom of the screen and its
+           requested size is used */
+        bool dock;
+
         /* After leaving fullscreen mode, a client needs to be reconfigured (configuration =
            setting X, Y, width and height). By setting the force_reconfigure flag, render_layout()
            will reconfigure the client. */
@@ -148,6 +161,7 @@ struct Client {
 
         /* The following entry provides the necessary list pointers to use Client with LIST_* macros */
         CIRCLEQ_ENTRY(Client) clients;
+        SLIST_ENTRY(Client) dock_clients;
 };
 
 /*

include/handlers.h

@@ -20,5 +20,6 @@ int handle_windowname_change(void *data, xcb_connection_t *conn, uint8_t state,
                                 xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop);
 int handle_expose_event(void *data, xcb_connection_t *conn, xcb_expose_event_t *event);
 int handle_client_message(void *data, xcb_connection_t *conn, xcb_client_message_event_t *event);
+int window_type_handler(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *property);
 
 #endif

include/i3.h

@@ -23,6 +23,6 @@ extern TAILQ_HEAD(bindings_head, Binding) bindings;
 extern xcb_event_handlers_t evenths;
 extern char *pattern;
 extern int num_screens;
-extern xcb_atom_t atoms[6];
+extern xcb_atom_t atoms[9];
 
 #endif

include/xcb.h

@@ -16,11 +16,15 @@
 #define _NET_WM_STATE_TOGGLE 2
 
 enum { _NET_SUPPORTED = 0,
-        _NET_SUPPORTING_WM_CHECK = 1,
-        _NET_WM_NAME = 2,
-        _NET_WM_STATE_FULLSCREEN = 3,
-        _NET_WM_STATE = 4,
-        UTF8_STRING = 5
+        _NET_SUPPORTING_WM_CHECK,
+        _NET_WM_NAME,
+        _NET_WM_STATE_FULLSCREEN,
+        _NET_WM_STATE,
+        _NET_WM_WINDOW_TYPE,
+        _NET_WM_WINDOW_TYPE_DOCK,
+        _NET_WM_DESKTOP,
+        _NET_WM_STRUT_PARTIAL,
+        UTF8_STRING
 };
 
 uint32_t get_colorpixel(xcb_connection_t *conn, xcb_window_t window, char *hex);