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

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