Add new command rename_monitor

4 files changed, 41 insertions, 0 deletions

diff --git a/src/command.c b/src/command.c
index cb93c937..c2bf37f7 100644
--- a/src/command.c
+++ b/src/command.c
@@ -99,6 +99,7 @@ struct {
     { "unlock_tag",     2,  no_completion },
     { "detect_monitors",1,  no_completion },
     { "add_monitor",    7,  no_completion },
+    { "rename_monitor", 3,  no_completion },
     { "remove_monitor", 2,  no_completion },
     { "move_monitor",   7,  no_completion },
     { "raise_monitor",  2,  no_completion },
diff --git a/src/main.c b/src/main.c
index 3a7e552f..6cf56065 100644
--- a/src/main.c
+++ b/src/main.c
@@ -138,6 +138,7 @@ CommandBinding g_commands[] = {
     CMD_BIND(             "raise_monitor",  monitor_raise_command),
     CMD_BIND(             "remove_monitor", remove_monitor_command),
     CMD_BIND(             "move_monitor",   move_monitor_command),
+    CMD_BIND(             "rename_monitor", rename_monitor_command),
     CMD_BIND(             "monitor_rect",   monitor_rect_command),
     CMD_BIND(             "pad",            monitor_set_pad_command),
     CMD_BIND(             "raise",          raise_command),
diff --git a/src/monitor.c b/src/monitor.c
index 7c7f41c0..0fc8cbf1 100644
--- a/src/monitor.c
+++ b/src/monitor.c
@@ -531,6 +531,44 @@ int move_monitor_command(int argc, char** argv, GString* output) {
     return 0;
 }
 
+int rename_monitor_command(int argc, char** argv, GString* output) {
+    if (argc < 3) {
+        return HERBST_NEED_MORE_ARGS;
+    }
+    HSMonitor* mon = string_to_monitor(argv[1]);
+    if (mon == NULL) {
+        g_string_append_printf(output,
+            "%s: Monitor \"%s\" not found!\n", argv[0], argv[1]);
+        return HERBST_INVALID_ARGUMENT;
+    }
+    if (isdigit(argv[2][0])) {
+        g_string_append_printf(output,
+            "%s: The monitor name may not start with a number\n", argv[0]);
+        return HERBST_INVALID_ARGUMENT;
+    } else if (!strcmp("", argv[2])) {
+        // empty name -> clear name
+        if (mon->name != NULL) {
+            g_string_free(mon->name, true);
+            mon->name = NULL;
+        }
+        return 0;
+    }
+    if (find_monitor_by_name(argv[2])) {
+        g_string_append_printf(output,
+            "%s: A monitor with the same name already exists\n", argv[0]);
+        return HERBST_INVALID_ARGUMENT;
+    }
+    if (mon->name == NULL) {
+        // not named before
+        GString* name = g_string_new(argv[2]);
+        mon->name = name;
+    } else {
+        // already named
+        g_string_assign(mon->name, argv[2]);
+    }
+    return 0;
+}
+
 int monitor_rect_command(int argc, char** argv, GString* output) {
     // usage: monitor_rect [[-p] INDEX]
     char* monitor_str = NULL;
diff --git a/src/monitor.h b/src/monitor.h
index bd4e6c59..6fc25af3 100644
--- a/src/monitor.h
+++ b/src/monitor.h
@@ -70,6 +70,7 @@ int set_monitor_rects_command(int argc, char** argv, GString* output);
 int disjoin_rects_command(int argc, char** argv, GString* output);
 int set_monitor_rects(XRectangle* templates, size_t count);
 int move_monitor_command(int argc, char** argv, GString* output);
+int rename_monitor_command(int argc, char** argv, GString* output);
 int monitor_rect_command(int argc, char** argv, GString* output);
 HSMonitor* get_current_monitor();
 int monitor_count();