390 lines
13 KiB
C
390 lines
13 KiB
C
#undef I3__FILE__
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#define I3__FILE__ "match.c"
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/*
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* vim:ts=4:sw=4:expandtab
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*
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* i3 - an improved dynamic tiling window manager
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* © 2009 Michael Stapelberg and contributors (see also: LICENSE)
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*
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* A "match" is a data structure which acts like a mask or expression to match
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* certain windows or not. For example, when using commands, you can specify a
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* command like this: [title="*Firefox*"] kill. The title member of the match
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* data structure will then be filled and i3 will check each window using
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* match_matches_window() to find the windows affected by this command.
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*
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*/
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#include "all.h"
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/* From sys/time.h, not sure if it’s available on all systems. */
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#define _i3_timercmp(a, b, CMP) \
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(((a).tv_sec == (b).tv_sec) ? ((a).tv_usec CMP(b).tv_usec) : ((a).tv_sec CMP(b).tv_sec))
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/*
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* Initializes the Match data structure. This function is necessary because the
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* members representing boolean values (like dock) need to be initialized with
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* -1 instead of 0.
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*
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*/
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void match_init(Match *match) {
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memset(match, 0, sizeof(Match));
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match->dock = M_DONTCHECK;
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match->urgent = U_DONTCHECK;
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/* we use this as the placeholder value for "not set". */
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match->window_type = UINT32_MAX;
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}
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/*
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* Check if a match is empty. This is necessary while parsing commands to see
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* whether the user specified a match at all.
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*
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*/
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bool match_is_empty(Match *match) {
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/* we cannot simply use memcmp() because the structure is part of a
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* TAILQ and I don’t want to start with things like assuming that the
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* last member of a struct really is at the end in memory… */
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return (match->title == NULL &&
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match->mark == NULL &&
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match->application == NULL &&
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match->class == NULL &&
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match->instance == NULL &&
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match->window_role == NULL &&
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match->workspace == NULL &&
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match->urgent == U_DONTCHECK &&
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match->id == XCB_NONE &&
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match->window_type == UINT32_MAX &&
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match->con_id == NULL &&
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match->dock == -1 &&
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match->floating == M_ANY);
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}
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/*
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* Copies the data of a match from src to dest.
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*
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*/
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void match_copy(Match *dest, Match *src) {
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memcpy(dest, src, sizeof(Match));
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/* The DUPLICATE_REGEX macro creates a new regular expression from the
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* ->pattern of the old one. It therefore does use a little more memory then
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* with a refcounting system, but it’s easier this way. */
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#define DUPLICATE_REGEX(field) \
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do { \
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if (src->field != NULL) \
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dest->field = regex_new(src->field->pattern); \
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} while (0)
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DUPLICATE_REGEX(title);
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DUPLICATE_REGEX(mark);
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DUPLICATE_REGEX(application);
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DUPLICATE_REGEX(class);
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DUPLICATE_REGEX(instance);
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DUPLICATE_REGEX(window_role);
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DUPLICATE_REGEX(workspace);
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}
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/*
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* Check if a match data structure matches the given window.
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*
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*/
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bool match_matches_window(Match *match, i3Window *window) {
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LOG("Checking window 0x%08x (class %s)\n", window->id, window->class_class);
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if (match->class != NULL) {
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if (window->class_class == NULL)
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return false;
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if (strcmp(match->class->pattern, "__focused__") == 0 &&
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strcmp(window->class_class, focused->window->class_class) == 0) {
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LOG("window class matches focused window\n");
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} else if (regex_matches(match->class, window->class_class)) {
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LOG("window class matches (%s)\n", window->class_class);
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} else {
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return false;
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}
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}
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if (match->instance != NULL) {
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if (window->class_instance == NULL)
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return false;
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if (strcmp(match->instance->pattern, "__focused__") == 0 &&
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strcmp(window->class_instance, focused->window->class_instance) == 0) {
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LOG("window instance matches focused window\n");
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} else if (regex_matches(match->instance, window->class_instance)) {
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LOG("window instance matches (%s)\n", window->class_instance);
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} else {
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return false;
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}
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}
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if (match->id != XCB_NONE) {
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if (window->id == match->id) {
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LOG("match made by window id (%d)\n", window->id);
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} else {
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LOG("window id does not match\n");
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return false;
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}
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}
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if (match->title != NULL) {
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if (window->name == NULL)
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return false;
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const char *title = i3string_as_utf8(window->name);
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if (strcmp(match->title->pattern, "__focused__") == 0 &&
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strcmp(title, i3string_as_utf8(focused->window->name)) == 0) {
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LOG("window title matches focused window\n");
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} else if (regex_matches(match->title, title)) {
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LOG("title matches (%s)\n", title);
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} else {
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return false;
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}
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}
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if (match->window_role != NULL) {
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if (window->role == NULL)
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return false;
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if (strcmp(match->window_role->pattern, "__focused__") == 0 &&
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strcmp(window->role, focused->window->role) == 0) {
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LOG("window role matches focused window\n");
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} else if (regex_matches(match->window_role, window->role)) {
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LOG("window_role matches (%s)\n", window->role);
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} else {
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return false;
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}
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}
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if (match->window_type != UINT32_MAX) {
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if (window->window_type == match->window_type) {
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LOG("window_type matches (%i)\n", match->window_type);
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} else {
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return false;
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}
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}
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Con *con = NULL;
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if (match->urgent == U_LATEST) {
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/* if the window isn't urgent, no sense in searching */
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if (window->urgent.tv_sec == 0) {
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return false;
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}
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/* if we find a window that is newer than this one, bail */
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TAILQ_FOREACH(con, &all_cons, all_cons) {
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if ((con->window != NULL) &&
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_i3_timercmp(con->window->urgent, window->urgent, > )) {
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return false;
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}
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}
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LOG("urgent matches latest\n");
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}
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if (match->urgent == U_OLDEST) {
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/* if the window isn't urgent, no sense in searching */
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if (window->urgent.tv_sec == 0) {
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return false;
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}
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/* if we find a window that is older than this one (and not 0), bail */
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TAILQ_FOREACH(con, &all_cons, all_cons) {
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if ((con->window != NULL) &&
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(con->window->urgent.tv_sec != 0) &&
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_i3_timercmp(con->window->urgent, window->urgent, < )) {
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return false;
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}
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}
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LOG("urgent matches oldest\n");
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}
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if (match->workspace != NULL) {
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if ((con = con_by_window_id(window->id)) == NULL)
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return false;
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Con *ws = con_get_workspace(con);
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if (ws == NULL)
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return false;
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if (strcmp(match->workspace->pattern, "__focused__") == 0 &&
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strcmp(ws->name, con_get_workspace(focused)->name) == 0) {
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LOG("workspace matches focused workspace\n");
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} else if (regex_matches(match->workspace, ws->name)) {
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LOG("workspace matches (%s)\n", ws->name);
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} else {
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return false;
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}
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}
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if (match->dock != M_DONTCHECK) {
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if ((window->dock == W_DOCK_TOP && match->dock == M_DOCK_TOP) ||
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(window->dock == W_DOCK_BOTTOM && match->dock == M_DOCK_BOTTOM) ||
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((window->dock == W_DOCK_TOP || window->dock == W_DOCK_BOTTOM) &&
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match->dock == M_DOCK_ANY) ||
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(window->dock == W_NODOCK && match->dock == M_NODOCK)) {
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LOG("dock status matches\n");
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} else {
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LOG("dock status does not match\n");
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return false;
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}
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}
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if (match->mark != NULL) {
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if ((con = con_by_window_id(window->id)) == NULL)
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return false;
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bool matched = false;
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mark_t *mark;
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TAILQ_FOREACH(mark, &(con->marks_head), marks) {
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if (regex_matches(match->mark, mark->name)) {
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matched = true;
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break;
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}
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}
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if (matched) {
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LOG("mark matches\n");
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} else {
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LOG("mark does not match\n");
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return false;
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}
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}
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return true;
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}
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/*
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* Frees the given match. It must not be used afterwards!
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*
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*/
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void match_free(Match *match) {
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FREE(match->error);
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regex_free(match->title);
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regex_free(match->application);
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regex_free(match->class);
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regex_free(match->instance);
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regex_free(match->mark);
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regex_free(match->window_role);
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regex_free(match->workspace);
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}
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/*
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* Interprets a ctype=cvalue pair and adds it to the given match specification.
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*
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*/
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void match_parse_property(Match *match, const char *ctype, const char *cvalue) {
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assert(match != NULL);
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DLOG("ctype=*%s*, cvalue=*%s*\n", ctype, cvalue);
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if (strcmp(ctype, "class") == 0) {
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regex_free(match->class);
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match->class = regex_new(cvalue);
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return;
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}
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if (strcmp(ctype, "instance") == 0) {
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regex_free(match->instance);
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match->instance = regex_new(cvalue);
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return;
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}
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if (strcmp(ctype, "window_role") == 0) {
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regex_free(match->window_role);
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match->window_role = regex_new(cvalue);
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return;
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}
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if (strcmp(ctype, "con_id") == 0) {
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if (strcmp(cvalue, "__focused__") == 0) {
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match->con_id = focused;
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return;
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}
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char *end;
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long parsed = strtol(cvalue, &end, 0);
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if (parsed == LONG_MIN ||
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parsed == LONG_MAX ||
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parsed < 0 ||
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(end && *end != '\0')) {
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ELOG("Could not parse con id \"%s\"\n", cvalue);
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match->error = sstrdup("invalid con_id");
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} else {
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match->con_id = (Con *)parsed;
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DLOG("id as int = %p\n", match->con_id);
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}
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return;
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}
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if (strcmp(ctype, "id") == 0) {
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char *end;
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long parsed = strtol(cvalue, &end, 0);
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if (parsed == LONG_MIN ||
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parsed == LONG_MAX ||
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parsed < 0 ||
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(end && *end != '\0')) {
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ELOG("Could not parse window id \"%s\"\n", cvalue);
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match->error = sstrdup("invalid id");
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} else {
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match->id = parsed;
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DLOG("window id as int = %d\n", match->id);
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}
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return;
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}
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if (strcmp(ctype, "window_type") == 0) {
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if (strcasecmp(cvalue, "normal") == 0) {
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match->window_type = A__NET_WM_WINDOW_TYPE_NORMAL;
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} else if (strcasecmp(cvalue, "dialog") == 0) {
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match->window_type = A__NET_WM_WINDOW_TYPE_DIALOG;
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} else if (strcasecmp(cvalue, "utility") == 0) {
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match->window_type = A__NET_WM_WINDOW_TYPE_UTILITY;
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} else if (strcasecmp(cvalue, "toolbar") == 0) {
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match->window_type = A__NET_WM_WINDOW_TYPE_TOOLBAR;
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} else if (strcasecmp(cvalue, "splash") == 0) {
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match->window_type = A__NET_WM_WINDOW_TYPE_SPLASH;
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} else if (strcasecmp(cvalue, "menu") == 0) {
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match->window_type = A__NET_WM_WINDOW_TYPE_MENU;
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} else if (strcasecmp(cvalue, "dropdown_menu") == 0) {
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match->window_type = A__NET_WM_WINDOW_TYPE_DROPDOWN_MENU;
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} else if (strcasecmp(cvalue, "popup_menu") == 0) {
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match->window_type = A__NET_WM_WINDOW_TYPE_POPUP_MENU;
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} else if (strcasecmp(cvalue, "tooltip") == 0) {
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match->window_type = A__NET_WM_WINDOW_TYPE_TOOLTIP;
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} else if (strcasecmp(cvalue, "notification") == 0) {
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match->window_type = A__NET_WM_WINDOW_TYPE_NOTIFICATION;
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} else {
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ELOG("unknown window_type value \"%s\"\n", cvalue);
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match->error = sstrdup("unknown window_type value");
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}
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return;
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}
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if (strcmp(ctype, "con_mark") == 0) {
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regex_free(match->mark);
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match->mark = regex_new(cvalue);
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return;
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}
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if (strcmp(ctype, "title") == 0) {
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regex_free(match->title);
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match->title = regex_new(cvalue);
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return;
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}
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if (strcmp(ctype, "urgent") == 0) {
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if (strcasecmp(cvalue, "latest") == 0 ||
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strcasecmp(cvalue, "newest") == 0 ||
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strcasecmp(cvalue, "recent") == 0 ||
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strcasecmp(cvalue, "last") == 0) {
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match->urgent = U_LATEST;
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} else if (strcasecmp(cvalue, "oldest") == 0 ||
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strcasecmp(cvalue, "first") == 0) {
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match->urgent = U_OLDEST;
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}
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return;
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}
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if (strcmp(ctype, "workspace") == 0) {
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regex_free(match->workspace);
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match->workspace = regex_new(cvalue);
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return;
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}
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ELOG("Unknown criterion: %s\n", ctype);
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}
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