rules.c

   1 #include <stdio.h>
   2 #include <string.h>
   3 #include <xcb/xcb_icccm.h>
   4 #include <xcb/xcb_ewmh.h>
   5 #include "types.h"
   6 #include "bspwm.h"
   7 #include "ewmh.h"
   8 #include "rules.h"
   9
  10 void add_rule(rule_t *r)
  11 {
  12     if (rule_head == NULL) {
  13         rule_head = rule_tail = r;
  14     } else {
  15         rule_tail->next = r;
  16         r->prev = rule_tail;
  17         rule_tail = r;
  18     }
  19 }
  20
  21 void remove_rule(rule_t *r)
  22 {
  23     if (r == NULL)
  24         return;
  25     rule_t *prev = r->prev;
  26     rule_t *next = r->next;
  27     if (prev != NULL)
  28         prev->next = next;
  29     if (next != NULL)
  30         next->prev = prev;
  31     if (r == rule_head)
  32         rule_head = next;
  33     if (r == rule_tail)
  34         rule_tail = prev;
  35     free(r);
  36 }
  37
  38 void remove_rule_by_uid(unsigned int uid)
  39 {
  40     remove_rule(find_rule(uid));
  41 }
  42
  43 rule_t *find_rule(unsigned int uid)
  44 {
  45     for (rule_t *r = rule_head; r != NULL; r = r->next)
  46         if (r->uid == uid)
  47             return r;
  48     return NULL;
  49 }
  50
  51 bool is_match(rule_t *r, xcb_window_t win)
  52 {
  53     xcb_icccm_get_wm_class_reply_t reply;
  54     if (xcb_icccm_get_wm_class_reply(dpy, xcb_icccm_get_wm_class(dpy, win), &reply, NULL) == 1
  55             && (strcmp(reply.class_name, r->cause.name) == 0
  56                 || strcmp(reply.instance_name, r->cause.name) == 0)) {
  57         xcb_icccm_get_wm_class_reply_wipe(&reply);
  58         return true;
  59     }
  60     return false;
  61 }
  62
  63 void handle_rules(xcb_window_t win, monitor_t **m, desktop_t **d, bool *floating, bool *transient, bool *fullscreen, bool *takes_focus, bool *manage)
  64 {
  65     xcb_ewmh_get_atoms_reply_t win_type;
  66
  67     if (xcb_ewmh_get_wm_window_type_reply(ewmh, xcb_ewmh_get_wm_window_type(ewmh, win), &win_type, NULL) == 1) {
  68         for (unsigned int i = 0; i < win_type.atoms_len; i++) {
  69             xcb_atom_t a = win_type.atoms[i];
  70             if (a == ewmh->_NET_WM_WINDOW_TYPE_TOOLBAR
  71                     || a == ewmh->_NET_WM_WINDOW_TYPE_UTILITY) {
  72                 *takes_focus = false;
  73             } else if (a == ewmh->_NET_WM_WINDOW_TYPE_DIALOG) {
  74                 *floating = true;
  75             } else if (a == ewmh->_NET_WM_WINDOW_TYPE_DOCK || a == ewmh->_NET_WM_WINDOW_TYPE_NOTIFICATION) {
  76                 *manage = false;
  77             }
  78         }
  79         xcb_ewmh_get_atoms_reply_wipe(&win_type);
  80     }
  81
  82     xcb_size_hints_t size_hints;
  83
  84     if (xcb_icccm_get_wm_normal_hints_reply(dpy, xcb_icccm_get_wm_normal_hints(dpy, win), &size_hints, NULL) == 1) {
  85         if (size_hints.min_width > 0 && size_hints.min_height > 0
  86                 && size_hints.min_width == size_hints.max_width
  87                 && size_hints.min_height == size_hints.max_height)
  88             *floating = true;
  89     }
  90
  91     xcb_ewmh_get_atoms_reply_t win_state;
  92
  93     if (xcb_ewmh_get_wm_state_reply(ewmh, xcb_ewmh_get_wm_state(ewmh, win), &win_state, NULL) == 1) {
  94         for (unsigned int i = 0; i < win_state.atoms_len; i++) {
  95             xcb_atom_t a = win_state.atoms[i];
  96             if (a == ewmh->_NET_WM_STATE_FULLSCREEN) {
  97                 *fullscreen = true;
  98             }
  99         }
 100         xcb_ewmh_get_atoms_reply_wipe(&win_state);
 101     }
 102
 103     xcb_window_t transient_for = XCB_NONE;
 104     xcb_icccm_get_wm_transient_for_reply(dpy, xcb_icccm_get_wm_transient_for(dpy, win), &transient_for, NULL);
 105     *transient = (transient_for == XCB_NONE ? false : true);
 106     if (*transient)
 107         *floating = true;
 108
 109     rule_t *rule = rule_head;
 110
 111     while (rule != NULL) {
 112         if (is_match(rule, win)) {
 113             rule_effect_t efc = rule->effect;
 114             if (efc.floating)
 115                 *floating = true;
 116             if (efc.monitor != NULL && efc.desktop != NULL) {
 117                 *m = efc.monitor;
 118                 *d = efc.desktop;
 119             }
 120         }
 121         rule = rule->next;
 122     }
 123 }
 124
 125 void list_rules(char *rsp)
 126 {
 127     char line[MAXLEN];
 128
 129     for (rule_t *r = rule_head; r != NULL; r = r->next) {
 130         snprintf(line, sizeof(line), "%02X %s %s %s\n", r->uid, r->cause.name, (r->effect.desktop != NULL ? r->effect.desktop->name : "\b"), (r->effect.floating ? "floating" : "\b"));
 131         strncat(rsp, line, REMLEN(rsp));
 132     }
 133 }