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

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