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__)
39 TAILQ_HEAD(keyvalue_table_head, keyvalue_element);
40 extern struct keyvalue_table_head by_parent;
41 extern struct keyvalue_table_head by_child;
43 int min(int a, int b);
44 int max(int a, int b);
47 * Logs the given message to stdout while prefixing the current time to it.
48 * This is to be called by LOG() which includes filename/linenumber
51 void slog(char *fmt, ...);
54 * Prints the message (see printf()) to stderr, then exits the program.
57 void die(char *fmt, ...) __attribute__((__noreturn__));
60 * Safe-wrapper around malloc which exits if malloc returns NULL (meaning that there
61 * is no more memory available)
64 void *smalloc(size_t size);
67 * Safe-wrapper around calloc which exits if malloc returns NULL (meaning that there
68 * is no more memory available)
71 void *scalloc(size_t size);
74 * Safe-wrapper around strdup which exits if malloc returns NULL (meaning that there
75 * is no more memory available)
78 char *sstrdup(const char *str);
81 * Inserts an element into the given keyvalue-table using the given key.
84 bool table_put(struct keyvalue_table_head *head, uint32_t key, void *value);
87 * Removes the element from the given keyvalue-table with the given key and returns its value;
90 void *table_remove(struct keyvalue_table_head *head, uint32_t key);
93 * Returns the value of the element of the given keyvalue-table with the given key.
96 void *table_get(struct keyvalue_table_head *head, uint32_t key);
99 * Starts the given application by passing it through a shell. We use double fork
100 * to avoid zombie processes. As the started application’s parent exits (immediately),
101 * the application is reparented to init (process-id 1), which correctly handles
102 * childs, so we don’t have to do it :-).
104 * The shell is determined by looking for the SHELL environment variable. If it
105 * does not exist, /bin/sh is used.
108 void start_application(const char *command);
111 * Checks a generic cookie for errors and quits with the given message if there
115 void check_error(xcb_connection_t *conn, xcb_void_cookie_t cookie, char *err_message);
118 * Converts the given string to UCS-2 big endian for use with
119 * xcb_image_text_16(). The amount of real glyphs is stored in real_strlen,
120 * a buffer containing the UCS-2 encoded string (16 bit per glyph) is
121 * returned. It has to be freed when done.
124 char *convert_utf8_to_ucs2(char *input, int *real_strlen);
127 * Returns the client which comes next in focus stack (= was selected before) for
128 * the given container, optionally excluding the given client.
131 Client *get_last_focused_client(xcb_connection_t *conn, Container *container, Client *exclude);
134 * Unmaps all clients (and stack windows) of the given workspace.
136 * This needs to be called separately when temporarily rendering
137 * a workspace which is not the active workspace to force
138 * reconfiguration of all clients, like in src/xinerama.c when
139 * re-assigning a workspace to another screen.
142 void unmap_workspace(xcb_connection_t *conn, Workspace *u_ws);
145 * Unmaps all clients (and stack windows) of the given workspace.
147 * This needs to be called separately when temporarily rendering
148 * a workspace which is not the active workspace to force
149 * reconfiguration of all clients, like in src/xinerama.c when
150 * re-assigning a workspace to another screen.
153 void unmap_workspace(xcb_connection_t *conn, Workspace *u_ws);
156 * Sets the given client as focused by updating the data structures correctly,
157 * updating the X input focus and finally re-decorating both windows (to signalize
158 * the user the new focus situation)
161 void set_focus(xcb_connection_t *conn, Client *client, bool set_anyways);
164 * Called when the user switches to another mode or when the container is
165 * destroyed and thus needs to be cleaned up.
168 void leave_stack_mode(xcb_connection_t *conn, Container *container);
171 * Switches the layout of the given container taking care of the necessary house-keeping
174 void switch_layout_mode(xcb_connection_t *conn, Container *container, int mode);
177 * Gets the first matching client for the given window class/window title.
178 * If the paramater specific is set to a specific client, only this one
182 Client *get_matching_client(xcb_connection_t *conn, const char *window_classtitle,