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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2016 Amaury Pouly
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "nwz_lib.h"
#include "nwz_plattools.h"
int NWZ_TOOL_MAIN(test_keys)(int argc, char **argv)
{
/* clear screen and display welcome message */
nwz_lcdmsg(true, 0, 0, "test_keys");
nwz_lcdmsg(false, 0, 2, "BACK: hold 3 seconds to quit");
/* open input device */
int input_fd = nwz_key_open();
if(input_fd < 0)
{
nwz_lcdmsg(false, 3, 4, "Cannot open input device");
sleep(2);
return 1;
}
/* display input state in a loop */
int back_pressed = 0; /* 0 = no pressed, >0 = number of seconds pressed - 1 */
#define FIRST_LINE 7
#define LAST_LINE 17
int event_line = FIRST_LINE;
int prev_evt_line = -1;
while(1)
{
/* display HOLD status */
nwz_lcdmsgf(false, 2, 5, "HOLD: %d", nwz_key_get_hold_status(input_fd));
/* wait for event */
int ret = nwz_key_wait_event(input_fd, 1000000);
if(ret != 1)
{
if(back_pressed > 0)
back_pressed++;
if(back_pressed >= 4)
break;
continue;
}
struct input_event evt;
if(nwz_key_read_event(input_fd, &evt) != 1)
continue;
/* erase last '>' indicator */
if(prev_evt_line != -1)
nwz_lcdmsg(false, 0, prev_evt_line, " ");
prev_evt_line = event_line;
char buffer[32];
int len = sprintf(buffer, "> %s %s (HOLD=%d)",
nwz_key_get_name(nwz_key_event_get_keycode(&evt)),
nwz_key_event_is_press(&evt) ? "pressed" : "released",
nwz_key_event_get_hold_status(&evt));
/* pad with spaces to erase old stuff */
while(len + 1 < sizeof(buffer))
buffer[len++] = ' ';
buffer[len] = 0;
/* print line */
nwz_lcdmsg(false, 0, event_line, buffer);
/* compute next line */
event_line++;
if(event_line == LAST_LINE)
event_line = FIRST_LINE;
/* handle quit */
if(nwz_key_event_get_keycode(&evt) == NWZ_KEY_BACK && nwz_key_event_is_press(&evt))
back_pressed = 1;
else
back_pressed = 0;
}
/* wait until back is released, to avoid messing with all_tools (if embedded) */
nwz_lcdmsg(true, 0, 0, "test_keys");
nwz_lcdmsg(false, 0, 2, "BACK: release to quit");
while(1)
{
/* wait for event */
int ret = nwz_key_wait_event(input_fd, 1000000);
if(ret != 1)
continue;
struct input_event evt;
if(nwz_key_read_event(input_fd, &evt) != 1)
continue;
/* handle quit */
if(nwz_key_event_get_keycode(&evt) == NWZ_KEY_BACK && !nwz_key_event_is_press(&evt))
break;
}
/* close input device */
nwz_key_close(input_fd);
/* finish nicely */
return 0;
}
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