config.c

#include "wlpinyin.h"

static xkb_keysym_t records[2];
bool im_toggle(struct xkb_state *xkb, xkb_keysym_t keysym, bool pressed) {
	records[1] = records[0];
	records[0] = keysym;
	return pressed == false && records[0] == XKB_KEY_Control_L &&
				 records[1] == XKB_KEY_Control_L;
}