static inline int input_state_high()

in panel.c [1166:1237]

• 42 lines of code
• 13 McCabe index (conditional complexity)

static inline int input_state_high(struct logical_input *input)
{
#if 0
	/* FIXME:
	 * this is an invalid test. It tries to catch
	 * transitions from single-key to multiple-key, but
	 * doesn't take into account the contacts polarity.
	 * The only solution to the problem is to parse keys
	 * from the most complex to the simplest combinations,
	 * and mark them as 'caught' once a combination
	 * matches, then unmatch it for all other ones.
	 */

	/* try to catch dangerous transitions cases :
	 * someone adds a bit, so this signal was a false
	 * positive resulting from a transition. We should
	 * invalidate the signal immediately and not call the
	 * release function.
	 * eg: 0 -(press A)-> A -(press B)-> AB : don't match A's release.
	 */
	if (((phys_prev & input->mask) == input->value) &&
	    ((phys_curr & input->mask) >  input->value)) {
		input->state = INPUT_ST_LOW; /* invalidate */
		return 1;
	}
#endif

	if ((phys_curr & input->mask) == input->value) {
		if ((input->type == INPUT_TYPE_STD) &&
		    (input->high_timer == 0)) {
			input->high_timer++;
			if (input->u.std.press_fct)
				input->u.std.press_fct(input->u.std.press_data);
		} else if (input->type == INPUT_TYPE_KBD) {
			/* will turn on the light */
			keypressed = 1;

			if (input->high_timer == 0) {
				char *press_str = input->u.kbd.press_str;

				if (press_str[0]) {
					int s = sizeof(input->u.kbd.press_str);

					keypad_send_key(press_str, s);
				}
			}

			if (input->u.kbd.repeat_str[0]) {
				char *repeat_str = input->u.kbd.repeat_str;

				if (input->high_timer >= KEYPAD_REP_START) {
					int s = sizeof(input->u.kbd.repeat_str);

					input->high_timer -= KEYPAD_REP_DELAY;
					keypad_send_key(repeat_str, s);
				}
				/* we will need to come back here soon */
				inputs_stable = 0;
			}

			if (input->high_timer < 255)
				input->high_timer++;
		}
		return 1;
	}

	/* else signal falling down. Let's fall through. */
	input->state = INPUT_ST_FALLING;
	input->fall_timer = 0;

	return 0;
}