*
* i3 - an improved dynamic tiling window manager
*
- * (c) 2009 Michael Stapelberg and contributors
+ * © 2009 Michael Stapelberg and contributors
*
* See file LICENSE for license information.
*
*/
#include <xcb/xcb.h>
+#include <err.h>
#include "data.h"
#ifndef _UTIL_H
#define _UTIL_H
+#define die(...) errx(EXIT_FAILURE, __VA_ARGS__);
#define exit_if_null(pointer, ...) { if (pointer == NULL) die(__VA_ARGS__); }
#define STARTS_WITH(string, needle) (strncasecmp(string, needle, strlen(needle)) == 0)
#define CIRCLEQ_NEXT_OR_NULL(head, elm, field) (CIRCLEQ_NEXT(elm, field) != CIRCLEQ_END(head) ? \
#define CIRCLEQ_PREV_OR_NULL(head, elm, field) (CIRCLEQ_PREV(elm, field) != CIRCLEQ_END(head) ? \
CIRCLEQ_PREV(elm, field) : NULL)
#define FOR_TABLE(workspace) \
- for (int cols = 0; cols < workspace->cols; cols++) \
- for (int rows = 0; rows < workspace->rows; rows++)
+ for (int cols = 0; cols < (workspace)->cols; cols++) \
+ for (int rows = 0; rows < (workspace)->rows; rows++)
#define FREE(pointer) do { \
- if (pointer == NULL) { \
+ if (pointer != NULL) { \
free(pointer); \
pointer = NULL; \
} \
} \
while (0)
-/* ##__VA_ARGS__ means: leave out __VA_ARGS__ completely if it is empty, that is,
- delete the preceding comma */
-#define LOG(fmt, ...) slog("%s:%s:%d - " fmt, __FILE__, __FUNCTION__, __LINE__, ##__VA_ARGS__)
-
-
int min(int a, int b);
int max(int a, int b);
-void slog(char *fmt, ...);
-void die(char *fmt, ...);
+bool rect_contains(Rect rect, uint32_t x, uint32_t y);
+
+/**
+ * Updates *destination with new_value and returns true if it was changed or false
+ * if it was the same
+ *
+ */
+bool update_if_necessary(uint32_t *destination, const uint32_t new_value);
+
+/**
+ * Safe-wrapper around malloc which exits if malloc returns NULL (meaning that
+ * there is no more memory available)
+ *
+ */
void *smalloc(size_t size);
+
+/**
+ * Safe-wrapper around calloc which exits if malloc returns NULL (meaning that
+ * there is no more memory available)
+ *
+ */
void *scalloc(size_t size);
+
+/**
+ * Safe-wrapper around realloc which exits if realloc returns NULL (meaning
+ * that there is no more memory available).
+ *
+ */
+void *srealloc(void *ptr, size_t size);
+
+/**
+ * Safe-wrapper around strdup which exits if malloc returns NULL (meaning that
+ * there is no more memory available)
+ *
+ */
char *sstrdup(const char *str);
+
+/**
+ * Starts the given application by passing it through a shell. We use double
+ * fork to avoid zombie processes. As the started application’s parent exits
+ * (immediately), the application is reparented to init (process-id 1), which
+ * correctly handles childs, so we don’t have to do it :-).
+ *
+ * The shell is determined by looking for the SHELL environment variable. If
+ * it does not exist, /bin/sh is used.
+ *
+ */
void start_application(const char *command);
-void check_error(xcb_connection_t *conn, xcb_void_cookie_t cookie, char *err_message);
+
+/**
+ * Checks a generic cookie for errors and quits with the given message if
+ * there was an error.
+ *
+ */
+void check_error(xcb_connection_t *conn, xcb_void_cookie_t cookie,
+ char *err_message);
+
+/**
+ * Converts the given string to UCS-2 big endian for use with
+ * xcb_image_text_16(). The amount of real glyphs is stored in real_strlen, a
+ * buffer containing the UCS-2 encoded string (16 bit per glyph) is
+ * returned. It has to be freed when done.
+ *
+ */
char *convert_utf8_to_ucs2(char *input, int *real_strlen);
-void remove_client_from_container(xcb_connection_t *conn, Client *client, Container *container);
-void set_focus(xcb_connection_t *conn, Client *client);
+
+#if 0
+/**
+ * Returns the client which comes next in focus stack (= was selected before) for
+ * the given container, optionally excluding the given client.
+ *
+ */
+Client *get_last_focused_client(xcb_connection_t *conn, Container *container,
+ Client *exclude);
+#endif
+
+#if 0
+/**
+ * Sets the given client as focused by updating the data structures correctly,
+ * updating the X input focus and finally re-decorating both windows (to
+ * signalize the user the new focus situation)
+ *
+ */
+void set_focus(xcb_connection_t *conn, Client *client, bool set_anyways);
+
+/**
+ * Called when the user switches to another mode or when the container is
+ * destroyed and thus needs to be cleaned up.
+ *
+ */
void leave_stack_mode(xcb_connection_t *conn, Container *container);
+
+/**
+ * Switches the layout of the given container taking care of the necessary
+ * house-keeping
+ *
+ */
void switch_layout_mode(xcb_connection_t *conn, Container *container, int mode);
-void warp_pointer_into(xcb_connection_t *conn, Client *client);
-void toggle_fullscreen(xcb_connection_t *conn, Client *client);
-void kill_window(xcb_connection_t *conn, Client *window);
+
+/**
+ * Gets the first matching client for the given window class/window title.
+ * If the paramater specific is set to a specific client, only this one
+ * will be checked.
+ *
+ */
+Client *get_matching_client(xcb_connection_t *conn,
+ const char *window_classtitle, Client *specific);
+#endif
+
+/*
+ * Restart i3 in-place
+ * appends -a to argument list to disable autostart
+ *
+ */
+void i3_restart();
+
+#if defined(__OpenBSD__)
+/* OpenBSD does not provide memmem(), so we provide FreeBSD’s implementation */
+void *memmem(const void *l, size_t l_len, const void *s, size_t s_len);
+#endif
#endif
projects / i3 / i3 / blobdiff