From: Vladimir Panteleev <git@thecybershadow.net>
Date: Sat, 9 Sep 2017 09:00:22 +0000 (+0000)
Subject: randr: Register monitors' output names as additional i3 output names
X-Git-Tag: 4.14.1~49
X-Git-Url: https://git.sur5r.net/?p=i3%2Fi3;a=commitdiff_plain;h=08ad82c3bbc25f0c54df665ee7538e3980b0e51a

randr: Register monitors' output names as additional i3 output names

In addition to the name of the monitor itself (which is still used as
the i3 output's primary name), register RandR output names associated
with the RandR monitor as alternative i3 output names.
---

diff --git a/src/randr.c b/src/randr.c
index df63826d..92d652b7 100644
--- a/src/randr.c
+++ b/src/randr.c
@@ -599,9 +599,39 @@ static bool randr_query_outputs_15(void) {
         if (new == NULL) {
             new = scalloc(1, sizeof(Output));
 
+            SLIST_INIT(&new->names_head);
+
+            /* Register associated output names in addition to the monitor name */
+            xcb_randr_output_t *randr_outputs = xcb_randr_monitor_info_outputs(monitor_info);
+            int randr_output_len = xcb_randr_monitor_info_outputs_length(monitor_info);
+            for (int i = 0; i < randr_output_len; i++) {
+                xcb_randr_output_t randr_output = randr_outputs[i];
+
+                xcb_randr_get_output_info_reply_t *info =
+                    xcb_randr_get_output_info_reply(conn,
+                                                    xcb_randr_get_output_info(conn, randr_output, monitors->timestamp),
+                                                    NULL);
+
+                if (info != NULL && info->crtc != XCB_NONE) {
+                    char *oname;
+                    sasprintf(&oname, "%.*s",
+                              xcb_randr_get_output_info_name_length(info),
+                              xcb_randr_get_output_info_name(info));
+
+                    if (strcmp(name, oname) != 0) {
+                        struct output_name *output_name = scalloc(1, sizeof(struct output_name));
+                        output_name->name = sstrdup(oname);
+                        SLIST_INSERT_HEAD(&new->names_head, output_name, names);
+                    } else {
+                        free(oname);
+                    }
+                }
+                FREE(info);
+            }
+
+            /* Insert the monitor name last, so that it's used as the primary name */
             struct output_name *output_name = scalloc(1, sizeof(struct output_name));
             output_name->name = sstrdup(name);
-            SLIST_INIT(&new->names_head);
             SLIST_INSERT_HEAD(&new->names_head, output_name, names);
 
             if (monitor_info->primary) {