4 * i3 - an improved dynamic tiling window manager
6 * (c) 2009 Michael Stapelberg and contributors
8 * See file LICENSE for license information.
18 #define exit_if_null(pointer, ...) { if (pointer == NULL) die(__VA_ARGS__); }
19 #define STARTS_WITH(string, needle) (strncasecmp(string, needle, strlen(needle)) == 0)
20 #define CIRCLEQ_NEXT_OR_NULL(head, elm, field) (CIRCLEQ_NEXT(elm, field) != CIRCLEQ_END(head) ? \
21 CIRCLEQ_NEXT(elm, field) : NULL)
22 #define CIRCLEQ_PREV_OR_NULL(head, elm, field) (CIRCLEQ_PREV(elm, field) != CIRCLEQ_END(head) ? \
23 CIRCLEQ_PREV(elm, field) : NULL)
24 #define FOR_TABLE(workspace) \
25 for (int cols = 0; cols < workspace->cols; cols++) \
26 for (int rows = 0; rows < workspace->rows; rows++)
27 #define FREE(pointer) do { \
28 if (pointer == NULL) { \
35 /* ##__VA_ARGS__ means: leave out __VA_ARGS__ completely if it is empty, that is,
36 delete the preceding comma */
37 #define LOG(fmt, ...) slog("%s:%s:%d - " fmt, __FILE__, __FUNCTION__, __LINE__, ##__VA_ARGS__)
40 int min(int a, int b);
41 int max(int a, int b);
44 * Logs the given message to stdout while prefixing the current time to it.
45 * This is to be called by LOG() which includes filename/linenumber
48 void slog(char *fmt, ...);
51 * Prints the message (see printf()) to stderr, then exits the program.
54 void die(char *fmt, ...);
57 * Safe-wrapper around malloc which exits if malloc returns NULL (meaning that there
58 * is no more memory available)
61 void *smalloc(size_t size);
64 * Safe-wrapper around calloc which exits if malloc returns NULL (meaning that there
65 * is no more memory available)
68 void *scalloc(size_t size);
71 * Safe-wrapper around strdup which exits if malloc returns NULL (meaning that there
72 * is no more memory available)
75 char *sstrdup(const char *str);
78 * Starts the given application by passing it through a shell. We use double fork
79 * to avoid zombie processes. As the started application’s parent exits (immediately),
80 * the application is reparented to init (process-id 1), which correctly handles
81 * childs, so we don’t have to do it :-).
83 * The shell is determined by looking for the SHELL environment variable. If it
84 * does not exist, /bin/sh is used.
87 void start_application(const char *command);
90 * Checks a generic cookie for errors and quits with the given message if there
94 void check_error(xcb_connection_t *conn, xcb_void_cookie_t cookie, char *err_message);
97 * Converts the given string to UCS-2 big endian for use with
98 * xcb_image_text_16(). The amount of real glyphs is stored in real_strlen,
99 * a buffer containing the UCS-2 encoded string (16 bit per glyph) is
100 * returned. It has to be freed when done.
103 char *convert_utf8_to_ucs2(char *input, int *real_strlen);
106 * Removes the given client from the container, either because it will be inserted into another
107 * one or because it was unmapped
110 void remove_client_from_container(xcb_connection_t *conn, Client *client, Container *container);
113 * Returns the client which comes next in focus stack (= was selected before) for
114 * the given container, optionally excluding the given client.
117 Client *get_last_focused_client(xcb_connection_t *conn, Container *container, Client *exclude);
120 * Sets the given client as focused by updating the data structures correctly,
121 * updating the X input focus and finally re-decorating both windows (to signalize
122 * the user the new focus situation)
125 void set_focus(xcb_connection_t *conn, Client *client, bool set_anyways);
128 * Called when the user switches to another mode or when the container is
129 * destroyed and thus needs to be cleaned up.
132 void leave_stack_mode(xcb_connection_t *conn, Container *container);
135 * Switches the layout of the given container taking care of the necessary house-keeping
138 void switch_layout_mode(xcb_connection_t *conn, Container *container, int mode);
141 * Warps the pointer into the given client (in the middle of it, to be specific), therefore
145 void warp_pointer_into(xcb_connection_t *conn, Client *client);
148 * Toggles fullscreen mode for the given client. It updates the data structures and
149 * reconfigures (= resizes/moves) the client and its frame to the full size of the
150 * screen. When leaving fullscreen, re-rendering the layout is forced.
153 void toggle_fullscreen(xcb_connection_t *conn, Client *client);
156 * Kills the given window using WM_DELETE_WINDOW or xcb_kill_window
159 void kill_window(xcb_connection_t *conn, Client *window);