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/**
* @file ui.c User Interface
*
* Copyright (C) 2010 Creytiv.com
*/
#include <string.h>
#include <re.h>
#include <baresip.h>
#include "core.h"
static struct list uil; /**< List of UIs (struct ui) */
static struct cmd_ctx *uictx;
static void ui_handler(char key, struct re_printf *pf)
{
(void)cmd_process(&uictx, key, pf);
}
static int stdout_handler(const char *p, size_t size, void *arg)
{
(void)arg;
if (1 != fwrite(p, size, 1, stdout))
return ENOMEM;
return 0;
}
/**
* Register a new User-Interface (UI) module
*
* @param ui The User-Interface (UI) module to register
*/
void ui_register(struct ui *ui)
{
if (!ui)
return;
list_append(&uil, &ui->le, ui);
debug("ui: %s\n", ui->name);
}
/**
* Un-register a User-Interface (UI) module
*
* @param ui The User-Interface (UI) module to un-register
*/
void ui_unregister(struct ui *ui)
{
if (!ui)
return;
list_unlink(&ui->le);
}
/**
* Send input to the UI subsystem
*
* @param key Input character
*/
void ui_input(char key)
{
static struct re_printf pf_stdout = {stdout_handler, NULL};
ui_handler(key, &pf_stdout);
}
/**
* Send an input key to the UI subsystem, with a print function for response
*
* @param key Input character
* @param pf Print function for the response
*/
void ui_input_key(char key, struct re_printf *pf)
{
ui_handler(key, pf);
}
/**
* Send an input string to the UI subsystem
*
* @param str Input string
*/
void ui_input_str(const char *str)
{
struct re_printf pf;
struct pl pl;
if (!str)
return;
pf.vph = stdout_handler;
pf.arg = NULL;
pl_set_str(&pl, str);
(void)ui_input_pl(&pf, &pl);
}
int ui_input_pl(struct re_printf *pf, const struct pl *pl)
{
struct cmd_ctx *ctx = NULL;
size_t i;
int err = 0;
if (!pf || !pl)
return EINVAL;
for (i=0; i<pl->l; i++) {
err |= cmd_process(&ctx, pl->p[i], pf);
}
if (pl->l > 1 && ctx)
err |= cmd_process(&ctx, '\n', pf);
return err;
}
/**
* Send output to all modules registered in the UI subsystem
*
* @param fmt Formatted output string
*/
void ui_output(const char *fmt, ...)
{
char buf[512];
struct le *le;
va_list ap;
int n;
va_start(ap, fmt);
n = re_vsnprintf(buf, sizeof(buf), fmt, ap);
va_end(ap);
if (n < 0)
return;
for (le = uil.head; le; le = le->next) {
const struct ui *ui = le->data;
if (ui->outputh)
ui->outputh(buf);
}
}
/**
* Reset the state of the UI subsystem, free resources
*/
void ui_reset(void)
{
uictx = mem_deref(uictx);
}
bool ui_isediting(void)
{
return uictx != NULL;
}
int ui_password_prompt(char **passwordp)
{
char pwd[64];
char *nl;
int err;
if (!passwordp)
return EINVAL;
/* note: blocking UI call */
fgets(pwd, sizeof(pwd), stdin);
pwd[sizeof(pwd) - 1] = '\0';
nl = strchr(pwd, '\n');
if (nl == NULL) {
(void)re_printf("Invalid password (0 - 63 characters"
" followed by newline)\n");
return EINVAL;
}
*nl = '\0';
err = str_dup(passwordp, pwd);
if (err)
return err;
return 0;
}
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