git.sur5r.net Git - i3/i3/blob - src/assignments.c

   1 #undef I3__FILE__
   2 #define I3__FILE__ "assignments.c"
   3 /*
   4  * vim:ts=4:sw=4:expandtab
   5  *
   6  * i3 - an improved dynamic tiling window manager
   7  * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
   8  *
   9  * assignments.c: Assignments for specific windows (for_window).
  10  *
  11  */
  12 #include "all.h"
  13
  14 /*
  15  * Checks the list of assignments for the given window and runs all matching
  16  * ones (unless they have already been run for this specific window).
  17  *
  18  */
  19 void run_assignments(i3Window *window) {
  20     DLOG("Checking if any assignments match this window\n");
  21
  22     bool needs_tree_render = false;
  23
  24     /* Check if any assignments match */
  25     Assignment *current;
  26     TAILQ_FOREACH (current, &assignments, assignments) {
  27         if (!match_matches_window(&(current->match), window))
  28             continue;
  29
  30         bool skip = false;
  31         for (uint32_t c = 0; c < window->nr_assignments; c++) {
  32             if (window->ran_assignments[c] != current)
  33                 continue;
  34
  35             DLOG("This assignment already ran for the given window, not executing it again.\n");
  36             skip = true;
  37             break;
  38         }
  39
  40         if (skip)
  41             continue;
  42
  43         DLOG("matching assignment, would do:\n");
  44         if (current->type == A_COMMAND) {
  45             DLOG("execute command %s\n", current->dest.command);
  46             char *full_command;
  47             sasprintf(&full_command, "[id=\"%d\"] %s", window->id, current->dest.command);
  48             CommandResult *result = parse_command(full_command, NULL);
  49             free(full_command);
  50
  51             if (result->needs_tree_render)
  52                 needs_tree_render = true;
  53
  54             command_result_free(result);
  55         }
  56
  57         /* Store that we ran this assignment to not execute it again */
  58         window->nr_assignments++;
  59         window->ran_assignments = srealloc(window->ran_assignments, sizeof(Assignment *) * window->nr_assignments);
  60         window->ran_assignments[window->nr_assignments - 1] = current;
  61     }
  62
  63     /* If any of the commands required re-rendering, we will do that now. */
  64     if (needs_tree_render)
  65         tree_render();
  66 }
  67
  68 /*
  69  * Returns the first matching assignment for the given window.
  70  *
  71  */
  72 Assignment *assignment_for(i3Window *window, int type) {
  73     Assignment *assignment;
  74
  75     TAILQ_FOREACH (assignment, &assignments, assignments) {
  76         if ((type != A_ANY && (assignment->type & type) == 0) ||
  77             !match_matches_window(&(assignment->match), window))
  78             continue;
  79         DLOG("got a matching assignment (to %s)\n", assignment->dest.workspace);
  80         return assignment;
  81     }
  82
  83     return NULL;
  84 }