2 * vim:ts=4:sw=4:expandtab
4 * i3 - an improved dynamic tiling window manager
5 * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
7 * A "match" is a data structure which acts like a mask or expression to match
8 * certain windows or not. For example, when using commands, you can specify a
9 * command like this: [title="*Firefox*"] kill. The title member of the match
10 * data structure will then be filled and i3 will check each window using
11 * match_matches_window() to find the windows affected by this command.
18 * Initializes the Match data structure. This function is necessary because the
19 * members representing boolean values (like dock) need to be initialized with
23 void match_init(Match *match) {
24 memset(match, 0, sizeof(Match));
29 * Check if a match is empty. This is necessary while parsing commands to see
30 * whether the user specified a match at all.
33 bool match_is_empty(Match *match) {
34 /* we cannot simply use memcmp() because the structure is part of a
35 * TAILQ and I don’t want to start with things like assuming that the
36 * last member of a struct really is at the end in memory… */
37 return (match->title == NULL &&
38 match->mark == NULL &&
39 match->application == NULL &&
40 match->class == NULL &&
41 match->instance == NULL &&
42 match->id == XCB_NONE &&
43 match->con_id == NULL &&
45 match->floating == M_ANY);
49 * Check if a match data structure matches the given window.
52 bool match_matches_window(Match *match, i3Window *window) {
53 /* TODO: pcre, full matching, … */
54 if (match->class != NULL && window->class_class != NULL && strcasecmp(match->class, window->class_class) == 0) {
55 LOG("match made by window class (%s)\n", window->class_class);
59 if (match->instance != NULL && window->class_instance != NULL && strcasecmp(match->instance, window->class_instance) == 0) {
60 LOG("match made by window instance (%s)\n", window->class_instance);
64 if (match->id != XCB_NONE && window->id == match->id) {
65 LOG("match made by window id (%d)\n", window->id);
69 LOG("match->dock = %d, window->dock = %d\n", match->dock, window->dock);
70 if (match->dock != -1 &&
71 ((window->dock == W_DOCK_TOP && match->dock == M_DOCK_TOP) ||
72 (window->dock == W_DOCK_BOTTOM && match->dock == M_DOCK_BOTTOM) ||
73 ((window->dock == W_DOCK_TOP || window->dock == W_DOCK_BOTTOM) &&
74 match->dock == M_DOCK_ANY) ||
75 (window->dock == W_NODOCK && match->dock == M_NODOCK))) {
76 LOG("match made by dock\n");
80 LOG("window %d (%s) could not be matched\n", window->id, window->class_class);
86 * Returns the first match in 'assignments' that matches the given window.
89 Match *match_by_assignment(i3Window *window) {
92 TAILQ_FOREACH(match, &assignments, assignments) {
93 if (!match_matches_window(match, window))
95 DLOG("got a matching assignment (to %s)\n", match->target_ws);