i3
assignments.c
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1/*
2 * vim:ts=4:sw=4:expandtab
3 *
4 * i3 - an improved tiling window manager
5 * © 2009 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 */
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;
25 if (current->type != A_COMMAND || !match_matches_window(&(current->match), window)) {
26 continue;
27 }
28
29 bool skip = false;
30 for (uint32_t c = 0; c < window->nr_assignments; c++) {
31 if (window->ran_assignments[c] != current) {
32 continue;
33 }
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
44 /* Store that we ran this assignment to not execute it again. We have
45 * to do this before running the actual command to prevent infinite
46 * loops. */
47 window->nr_assignments++;
48 window->ran_assignments = srealloc(window->ran_assignments, sizeof(Assignment *) * window->nr_assignments);
49 window->ran_assignments[window->nr_assignments - 1] = current;
50
51 DLOG("matching assignment, execute command %s\n", current->dest.command);
52 char *full_command;
53 sasprintf(&full_command, "[id=\"%d\"] %s", window->id, current->dest.command);
54 CommandResult *result = parse_command(full_command, NULL, NULL);
55 free(full_command);
56
57 if (result->needs_tree_render) {
58 needs_tree_render = true;
59 }
60
61 command_result_free(result);
62 }
63
64 /* If any of the commands required re-rendering, we will do that now. */
65 if (needs_tree_render) {
67 }
68}
69
70/*
71 * Returns the first matching assignment for the given window.
72 *
73 */
74Assignment *assignment_for(i3Window *window, int type) {
75 Assignment *assignment;
76
77 TAILQ_FOREACH (assignment, &assignments, assignments) {
78 if ((type != A_ANY && (assignment->type & type) == 0) ||
79 !match_matches_window(&(assignment->match), window)) {
80 continue;
81 }
82 DLOG("got a matching assignment\n");
83 return assignment;
84 }
85
86 return NULL;
87}
void run_assignments(i3Window *window)
Checks the list of assignments for the given window and runs all matching ones (unless they have alre...
Definition assignments.c:17
Assignment * assignment_for(i3Window *window, int type)
Returns the first matching assignment for the given window.
Definition assignments.c:74
CommandResult * parse_command(const char *input, yajl_gen gen, ipc_client *client)
Parses and executes the given command.
void command_result_free(CommandResult *result)
Frees a CommandResult.
bool match_matches_window(Match *match, i3Window *window)
Check if a match data structure matches the given window.
Definition match.c:90
void tree_render(void)
Renders the tree, that is rendering all outputs using render_con() and pushing the changes to X11 usi...
Definition tree.c:455
struct assignments_head assignments
Definition main.c:97
#define DLOG(fmt,...)
Definition libi3.h:105
int sasprintf(char **strp, const char *fmt,...)
Safe-wrapper around asprintf which exits if it returns -1 (meaning that there is no more memory avail...
void * srealloc(void *ptr, size_t size)
Safe-wrapper around realloc which exits if realloc returns NULL (meaning that there is no more memory...
#define TAILQ_FOREACH(var, head, field)
Definition queue.h:347
A struct that contains useful information about the result of a command as a whole (e....
A 'Window' is a type which contains an xcb_window_t and all the related information (hints like _NET_...
Definition data.h:424
xcb_window_t id
Definition data.h:425
Assignment ** ran_assignments
Definition data.h:435
uint32_t nr_assignments
Pointers to the Assignments which were already ran for this Window (assignments run only once)
Definition data.h:434
An Assignment makes specific windows go to a specific workspace/output or run a command for that wind...
Definition data.h:594
Match match
the criteria to check if a window matches
Definition data.h:616
union Assignment::@17 dest
destination workspace/command/output, depending on the type
char * command
Definition data.h:620
enum Assignment::@16 type
type of this assignment: