1 files changed, 38 insertions, 0 deletions
diff --git a/common/util.c b/common/util.c
index ed6d033f..b5037d35 100644
--- a/common/util.c
+++ b/common/util.c
@@ -13,3 +13,41 @@ int numlen(int n) {
 	if (n >= 10) return 2;
 	return 1;
 }
+
+static struct modifier_key {
+	char *name;
+	uint32_t mod;
+} modifiers[] = {
+	{ XKB_MOD_NAME_SHIFT, WLC_BIT_MOD_SHIFT },
+	{ XKB_MOD_NAME_CAPS, WLC_BIT_MOD_CAPS },
+	{ XKB_MOD_NAME_CTRL, WLC_BIT_MOD_CTRL },
+	{ "Ctrl", WLC_BIT_MOD_CTRL },
+	{ XKB_MOD_NAME_ALT, WLC_BIT_MOD_ALT },
+	{ "Alt", WLC_BIT_MOD_ALT },
+	{ XKB_MOD_NAME_NUM, WLC_BIT_MOD_MOD2 },
+	{ "Mod3", WLC_BIT_MOD_MOD3 },
+	{ XKB_MOD_NAME_LOGO, WLC_BIT_MOD_LOGO },
+	{ "Mod5", WLC_BIT_MOD_MOD5 },
+};
+
+uint32_t get_modifier_mask_by_name(const char *name) {
+	int i;
+	for (i = 0; i < (int)(sizeof(modifiers) / sizeof(struct modifier_key)); ++i) {
+		if (strcasecmp(modifiers[i].name, name) == 0) {
+			return modifiers[i].mod;
+		}
+	}
+
+	return 0;
+}
+
+const char *get_modifier_name_by_mask(uint32_t modifier) {
+	int i;
+	for (i = 0; i < (int)(sizeof(modifiers) / sizeof(struct modifier_key)); ++i) {
+		if (modifiers[i].mod == modifier) {
+			return modifiers[i].name;
+		}
+	}
+
+	return NULL;
+}