+#undef I3__FILE__
+#define I3__FILE__ "match.c"
/*
* vim:ts=4:sw=4:expandtab
*
* i3 - an improved dynamic tiling window manager
- * © 2009-2010 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
+ *
+ * A "match" is a data structure which acts like a mask or expression to match
+ * certain windows or not. For example, when using commands, you can specify a
+ * command like this: [title="*Firefox*"] kill. The title member of the match
+ * data structure will then be filled and i3 will check each window using
+ * match_matches_window() to find the windows affected by this command.
*
*/
-
#include "all.h"
+/* From sys/time.h, not sure if it’s available on all systems. */
+#define _i3_timercmp(a, b, CMP) \
+ (((a).tv_sec == (b).tv_sec) ? ((a).tv_usec CMP(b).tv_usec) : ((a).tv_sec CMP(b).tv_sec))
+
+/*
+ * Initializes the Match data structure. This function is necessary because the
+ * members representing boolean values (like dock) need to be initialized with
+ * -1 instead of 0.
+ *
+ */
+void match_init(Match *match) {
+ memset(match, 0, sizeof(Match));
+ match->dock = M_DONTCHECK;
+ match->urgent = U_DONTCHECK;
+ /* we use this as the placeholder value for "not set". */
+ match->window_type = UINT32_MAX;
+}
+
+/*
+ * Check if a match is empty. This is necessary while parsing commands to see
+ * whether the user specified a match at all.
+ *
+ */
bool match_is_empty(Match *match) {
/* we cannot simply use memcmp() because the structure is part of a
* TAILQ and I don’t want to start with things like assuming that the
* last member of a struct really is at the end in memory… */
return (match->title == NULL &&
+ match->mark == NULL &&
match->application == NULL &&
match->class == NULL &&
match->instance == NULL &&
+ match->window_role == NULL &&
+ match->urgent == U_DONTCHECK &&
match->id == XCB_NONE &&
+ match->window_type == UINT32_MAX &&
match->con_id == NULL &&
- match->floating == false);
+ match->dock == -1 &&
+ match->floating == M_ANY);
+}
+
+/*
+ * Copies the data of a match from src to dest.
+ *
+ */
+void match_copy(Match *dest, Match *src) {
+ memcpy(dest, src, sizeof(Match));
+
+/* The DUPLICATE_REGEX macro creates a new regular expression from the
+ * ->pattern of the old one. It therefore does use a little more memory then
+ * with a refcounting system, but it’s easier this way. */
+#define DUPLICATE_REGEX(field) \
+ do { \
+ if (src->field != NULL) \
+ dest->field = regex_new(src->field->pattern); \
+ } while (0)
+
+ DUPLICATE_REGEX(title);
+ DUPLICATE_REGEX(mark);
+ DUPLICATE_REGEX(application);
+ DUPLICATE_REGEX(class);
+ DUPLICATE_REGEX(instance);
+ DUPLICATE_REGEX(window_role);
}
+/*
+ * Check if a match data structure matches the given window.
+ *
+ */
bool match_matches_window(Match *match, i3Window *window) {
- /* TODO: pcre, full matching, … */
- if (match->class != NULL && window->class_class != NULL && strcasecmp(match->class, window->class_class) == 0) {
- LOG("match made by window class (%s)\n", window->class_class);
- return true;
+ LOG("Checking window 0x%08x (class %s)\n", window->id, window->class_class);
+
+ if (match->class != NULL) {
+ if (window->class_class != NULL &&
+ regex_matches(match->class, window->class_class)) {
+ LOG("window class matches (%s)\n", window->class_class);
+ } else {
+ return false;
+ }
+ }
+
+ if (match->instance != NULL) {
+ if (window->class_instance != NULL &&
+ regex_matches(match->instance, window->class_instance)) {
+ LOG("window instance matches (%s)\n", window->class_instance);
+ } else {
+ return false;
+ }
+ }
+
+ if (match->id != XCB_NONE) {
+ if (window->id == match->id) {
+ LOG("match made by window id (%d)\n", window->id);
+ } else {
+ LOG("window id does not match\n");
+ return false;
+ }
}
- if (match->instance != NULL && window->class_instance != NULL && strcasecmp(match->instance, window->class_instance) == 0) {
- LOG("match made by window instance (%s)\n", window->class_instance);
- return true;
+ if (match->title != NULL) {
+ if (window->name != NULL &&
+ regex_matches(match->title, i3string_as_utf8(window->name))) {
+ LOG("title matches (%s)\n", i3string_as_utf8(window->name));
+ } else {
+ return false;
+ }
}
+ if (match->window_role != NULL) {
+ if (window->role != NULL &&
+ regex_matches(match->window_role, window->role)) {
+ LOG("window_role matches (%s)\n", window->role);
+ } else {
+ return false;
+ }
+ }
- if (match->id != XCB_NONE && window->id == match->id) {
- LOG("match made by window id (%d)\n", window->id);
- return true;
+ if (match->window_type != UINT32_MAX) {
+ if (window->window_type == match->window_type) {
+ LOG("window_type matches (%i)\n", match->window_type);
+ } else {
+ return false;
+ }
}
- LOG("window %d (%s) could not be matched\n", window->id, window->class_class);
+ Con *con = NULL;
+ if (match->urgent == U_LATEST) {
+ /* if the window isn't urgent, no sense in searching */
+ if (window->urgent.tv_sec == 0) {
+ return false;
+ }
+ /* if we find a window that is newer than this one, bail */
+ TAILQ_FOREACH(con, &all_cons, all_cons) {
+ if ((con->window != NULL) &&
+ _i3_timercmp(con->window->urgent, window->urgent, > )) {
+ return false;
+ }
+ }
+ LOG("urgent matches latest\n");
+ }
+
+ if (match->urgent == U_OLDEST) {
+ /* if the window isn't urgent, no sense in searching */
+ if (window->urgent.tv_sec == 0) {
+ return false;
+ }
+ /* if we find a window that is older than this one (and not 0), bail */
+ TAILQ_FOREACH(con, &all_cons, all_cons) {
+ if ((con->window != NULL) &&
+ (con->window->urgent.tv_sec != 0) &&
+ _i3_timercmp(con->window->urgent, window->urgent, < )) {
+ return false;
+ }
+ }
+ LOG("urgent matches oldest\n");
+ }
- return false;
+ if (match->dock != M_DONTCHECK) {
+ if ((window->dock == W_DOCK_TOP && match->dock == M_DOCK_TOP) ||
+ (window->dock == W_DOCK_BOTTOM && match->dock == M_DOCK_BOTTOM) ||
+ ((window->dock == W_DOCK_TOP || window->dock == W_DOCK_BOTTOM) &&
+ match->dock == M_DOCK_ANY) ||
+ (window->dock == W_NODOCK && match->dock == M_NODOCK)) {
+ LOG("dock status matches\n");
+ } else {
+ LOG("dock status does not match\n");
+ return false;
+ }
+ }
+
+ /* We don’t check the mark because this function is not even called when
+ * the mark would have matched - it is checked in cmdparse.y itself */
+ if (match->mark != NULL) {
+ LOG("mark does not match\n");
+ return false;
+ }
+
+ return true;
}
+/*
+ * Frees the given match. It must not be used afterwards!
+ *
+ */
+void match_free(Match *match) {
+ /* First step: free the regex fields / patterns */
+ regex_free(match->title);
+ regex_free(match->application);
+ regex_free(match->class);
+ regex_free(match->instance);
+ regex_free(match->mark);
+ regex_free(match->window_role);
+
+ /* Second step: free the regex helper struct itself */
+ FREE(match->title);
+ FREE(match->application);
+ FREE(match->class);
+ FREE(match->instance);
+ FREE(match->mark);
+ FREE(match->window_role);
+}
projects / i3 / i3 / blobdiff