Implement fullscreen (_NET_WM_STATE_FULLSCREEN)

include/data.h

@@ -9,6 +9,7 @@
  *
  */
 #include <xcb/xcb.h>
+#include <stdbool.h>
 
 #ifndef _DATA_H
 #define _DATA_H
@@ -57,6 +58,8 @@ struct Workspace {
         int current_row;
         int current_col;
 
+        Client *fullscreen_client;
+
         /* This is a two-dimensional dynamic array of Container-pointers. I’ve always wanted
          * to be a three-star programmer :) */
         Container ***table;
@@ -118,6 +121,14 @@ struct Client {
         char *name;
         int name_len;
 
+        /* fullscreen is pretty obvious */
+        bool fullscreen;
+
+        /* 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. */
+        bool force_reconfigure;
+
         /* XCB contexts */
         xcb_window_t frame; /* Our window: The frame around the client */
         xcb_gcontext_t titlegc; /* The titlebar’s graphic context inside the frame */
@@ -147,6 +158,9 @@ struct Container {
         int width;
         int height;
 
+        /* Backpointer to the workspace this container is in */
+        Workspace *workspace;
+
         /* Ensure MODE_DEFAULT maps to 0 because we use calloc for initialization later */
         enum { MODE_DEFAULT = 0, MODE_STACK = 1 } mode;
         CIRCLEQ_HEAD(client_head, Client) clients;

include/handlers.h

@@ -19,5 +19,6 @@ int handle_map_notify_event(void *prophs, xcb_connection_t *conn, xcb_map_notify
 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);
 
 #endif

include/i3.h

@@ -23,5 +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];
 
 #endif

include/xcb.h

@@ -11,6 +11,18 @@
 #ifndef _XCB_H
 #define _XCB_H
 
+#define _NET_WM_STATE_REMOVE 0
+#define _NET_WM_STATE_ADD 1
+#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
+};
+
 uint32_t get_colorpixel(xcb_connection_t *conn, xcb_window_t window, char *hex);
 
 #endif