rule.c

   1 #include <stdio.h>
   2 #include <string.h>
   3 #include "bspwm.h"
   4 #include "ewmh.h"
   5 #include "window.h"
   6 #include "query.h"
   7 #include "rule.h"
   8
   9 rule_t *make_rule(void)
  10 {
  11     rule_t *r = malloc(sizeof(rule_t));
  12     r->uid = ++rule_uid;
  13     r->effect.floating = false;
  14     r->effect.fullscreen = false;
  15     r->effect.locked = false;
  16     r->effect.follow = false;
  17     r->effect.focus = false;
  18     r->effect.unmanage = false;
  19     r->one_shot = false;
  20     r->effect.desc[0] = '\0';
  21     r->prev = NULL;
  22     r->next = NULL;
  23     return r;
  24 }
  25
  26 void add_rule(rule_t *r)
  27 {
  28     if (rule_head == NULL) {
  29         rule_head = rule_tail = r;
  30     } else {
  31         rule_tail->next = r;
  32         r->prev = rule_tail;
  33         rule_tail = r;
  34     }
  35 }
  36
  37 void remove_rule(rule_t *r)
  38 {
  39     if (r == NULL)
  40         return;
  41     rule_t *prev = r->prev;
  42     rule_t *next = r->next;
  43     if (prev != NULL)
  44         prev->next = next;
  45     if (next != NULL)
  46         next->prev = prev;
  47     if (r == rule_head)
  48         rule_head = next;
  49     if (r == rule_tail)
  50         rule_tail = prev;
  51     free(r);
  52 }
  53
  54 void remove_rule_by_uid(unsigned int uid)
  55 {
  56     remove_rule(find_rule(uid));
  57 }
  58
  59 rule_t *find_rule(unsigned int uid)
  60 {
  61     for (rule_t *r = rule_head; r != NULL; r = r->next)
  62         if (r->uid == uid)
  63             return r;
  64     return NULL;
  65 }
  66
  67 bool is_match(rule_t *r, xcb_window_t win)
  68 {
  69     xcb_icccm_get_wm_class_reply_t reply;
  70     int8_t success = 0;
  71     if (streq(r->cause.name, MATCH_ALL) ||
  72             ((success = xcb_icccm_get_wm_class_reply(dpy, xcb_icccm_get_wm_class(dpy, win), &reply, NULL)) == 1
  73             && (streq(reply.class_name, r->cause.name)
  74                 || streq(reply.instance_name, r->cause.name)))) {
  75         if (success == 1)
  76             xcb_icccm_get_wm_class_reply_wipe(&reply);
  77         return true;
  78     }
  79     return false;
  80 }
  81
  82 void handle_rules(xcb_window_t win, monitor_t **m, desktop_t **d, bool *floating, bool *fullscreen, bool *locked, bool *follow, bool *transient, bool *takes_focus, bool *manage)
  83 {
  84     xcb_ewmh_get_atoms_reply_t win_type;
  85
  86     if (xcb_ewmh_get_wm_window_type_reply(ewmh, xcb_ewmh_get_wm_window_type(ewmh, win), &win_type, NULL) == 1) {
  87         for (unsigned int i = 0; i < win_type.atoms_len; i++) {
  88             xcb_atom_t a = win_type.atoms[i];
  89             if (a == ewmh->_NET_WM_WINDOW_TYPE_TOOLBAR
  90                     || a == ewmh->_NET_WM_WINDOW_TYPE_UTILITY) {
  91                 *takes_focus = false;
  92             } else if (a == ewmh->_NET_WM_WINDOW_TYPE_DIALOG) {
  93                 *floating = true;
  94             } else if (a == ewmh->_NET_WM_WINDOW_TYPE_DOCK || a == ewmh->_NET_WM_WINDOW_TYPE_DESKTOP || a == ewmh->_NET_WM_WINDOW_TYPE_NOTIFICATION) {
  95                 *manage = false;
  96                 if (a == ewmh->_NET_WM_WINDOW_TYPE_DESKTOP)
  97                     window_lower(win);
  98             }
  99         }
 100         xcb_ewmh_get_atoms_reply_wipe(&win_type);
 101     }
 102
 103     xcb_size_hints_t size_hints;
 104
 105     if (xcb_icccm_get_wm_normal_hints_reply(dpy, xcb_icccm_get_wm_normal_hints(dpy, win), &size_hints, NULL) == 1) {
 106         if (size_hints.min_width > 0 && size_hints.min_height > 0
 107                 && size_hints.min_width == size_hints.max_width
 108                 && size_hints.min_height == size_hints.max_height)
 109             *floating = true;
 110     }
 111
 112     xcb_ewmh_get_atoms_reply_t win_state;
 113
 114     if (xcb_ewmh_get_wm_state_reply(ewmh, xcb_ewmh_get_wm_state(ewmh, win), &win_state, NULL) == 1) {
 115         for (unsigned int i = 0; i < win_state.atoms_len; i++) {
 116             xcb_atom_t a = win_state.atoms[i];
 117             if (a == ewmh->_NET_WM_STATE_FULLSCREEN) {
 118                 *fullscreen = true;
 119             }
 120         }
 121         xcb_ewmh_get_atoms_reply_wipe(&win_state);
 122     }
 123
 124     xcb_window_t transient_for = XCB_NONE;
 125     xcb_icccm_get_wm_transient_for_reply(dpy, xcb_icccm_get_wm_transient_for(dpy, win), &transient_for, NULL);
 126     *transient = (transient_for == XCB_NONE ? false : true);
 127     if (*transient)
 128         *floating = true;
 129
 130     rule_t *rule = rule_head;
 131
 132     while (rule != NULL) {
 133         if (is_match(rule, win)) {
 134             rule_effect_t efc = rule->effect;
 135             if (efc.floating)
 136                 *floating = true;
 137             if (efc.fullscreen)
 138                 *fullscreen = true;
 139             if (efc.locked)
 140                 *locked = true;
 141             if (efc.follow)
 142                 *follow = true;
 143             if (efc.focus)
 144                 *takes_focus = true;
 145             if (efc.unmanage)
 146                 *manage = false;
 147             if (efc.desc[0] != '\0') {
 148                 coordinates_t ref = {*m, *d, NULL};
 149                 coordinates_t loc;
 150                 if (desktop_from_desc(efc.desc, &ref, &loc)) {
 151                     *m = loc.monitor;
 152                     *d = loc.desktop;
 153                 }
 154             }
 155         }
 156         rule_t *next = rule->next;
 157         if (rule->one_shot)
 158             remove_rule(rule);
 159         rule = next;
 160     }
 161 }
 162
 163 void list_rules(char *pattern, char *rsp)
 164 {
 165     char line[MAXLEN];
 166
 167     for (rule_t *r = rule_head; r != NULL; r = r->next) {
 168         if (pattern != NULL && !streq(pattern, r->cause.name))
 169             continue;
 170         snprintf(line, sizeof(line), "%2X %s", r->uid, r->cause.name);
 171         strncat(rsp, line, REMLEN(rsp));
 172         if (r->effect.floating)
 173             strncat(rsp, " --floating", REMLEN(rsp));
 174         if (r->effect.fullscreen)
 175             strncat(rsp, " --fullscreen", REMLEN(rsp));
 176         if (r->effect.locked)
 177             strncat(rsp, " --locked", REMLEN(rsp));
 178         if (r->effect.follow)
 179             strncat(rsp, " --follow", REMLEN(rsp));
 180         if (r->effect.focus)
 181             strncat(rsp, " --focus", REMLEN(rsp));
 182         if (r->effect.unmanage)
 183             strncat(rsp, " --unmanage", REMLEN(rsp));
 184         if (r->one_shot)
 185             strncat(rsp, " --one-shot", REMLEN(rsp));
 186         if (r->effect.desc[0] != '\0') {
 187             snprintf(line, sizeof(line), " -d %s", r->effect.desc);
 188             strncat(rsp, line, REMLEN(rsp));
 189         }
 190         strncat(rsp, "\n", REMLEN(rsp));
 191     }
 192 }