Merge pull request #434 from mikkeloscar/detect-modifier

Send IPC modifier event on bar_modifier up/down

1 files changed, 24 insertions, 0 deletions

diff --git a/sway/input_state.c b/sway/input_state.c
index 58619d1f..2f40b6c2 100644
--- a/sway/input_state.c
+++ b/sway/input_state.c
@@ -22,12 +22,36 @@ struct key_state {
 
 static struct key_state key_state_array[KEY_STATE_MAX_LENGTH];
 
+static uint32_t modifiers_state;
+
 void input_init(void) {
 	int i;
 	for (i = 0; i < KEY_STATE_MAX_LENGTH; ++i) {
 		struct key_state none = { 0, 0, 0 };
 		key_state_array[i] = none;
 	}
+
+	modifiers_state = 0;
+}
+
+uint32_t modifier_state_changed(uint32_t new_state, uint32_t mod) {
+	if ((new_state & mod) != 0) { // pressed
+		if ((modifiers_state & mod) != 0) { // already pressed
+			return MOD_STATE_UNCHANGED;
+		} else { // pressed
+			return MOD_STATE_PRESSED;
+		}
+	} else { // not pressed
+		if ((modifiers_state & mod) != 0) { // released
+			return MOD_STATE_RELEASED;
+		} else { // already released
+			return MOD_STATE_UNCHANGED;
+		}
+	}
+}
+
+void modifiers_state_update(uint32_t new_state) {
+	modifiers_state = new_state;
 }
 
 static uint8_t find_key(uint32_t key_sym, uint32_t key_code, bool update) {