config: improvements to the reload validation

For the validation pass of reloading, there is no need to touch swaybg,
swaynag, inputs, outputs, or seats. This drastically improves the speed
of a reload by skipping over the expensive I/O configuration and
handling of wayland clients. As long as the syntax is valid, the
CMD_FAILURE's can be relayed during the actual reload.

1 files changed, 19 insertions, 0 deletions

diff --git a/sway/input/input-manager.c b/sway/input/input-manager.c
index cfd39bab..3d7f9e8b 100644
--- a/sway/input/input-manager.c
+++ b/sway/input/input-manager.c
@@ -359,6 +359,23 @@ void input_manager_set_focus(struct sway_node *node) {
         }
 }
 
+/**
+ * Re-translate keysyms if a change in the input config could affect them.
+ */
+static void retranslate_keysyms(struct input_config *input_config) {
+        for (int i = 0; i < config->input_configs->length; ++i) {
+                struct input_config *ic = config->input_configs->items[i];
+                if (ic->xkb_layout || ic->xkb_file) {
+                        // this is the first config with xkb_layout or xkb_file
+                        if (ic->identifier == input_config->identifier) {
+                                translate_keysyms(ic);
+                        }
+
+                        return;
+                }
+        }
+}
+
 void input_manager_apply_input_config(struct input_config *input_config) {
         struct sway_input_device *input_device = NULL;
         bool wildcard = strcmp(input_config->identifier, "*") == 0;
@@ -376,6 +393,8 @@ void input_manager_apply_input_config(struct input_config *input_config) {
                         }
                 }
         }
+
+        retranslate_keysyms(input_config);
 }
 
 void input_manager_reset_input(struct sway_input_device *input_device) {