mpv/libmenu/menu_console.c

499 lines
12 KiB
C

/*
* This file is part of MPlayer.
*
* MPlayer 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.
*
* MPlayer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "mp_msg.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <sys/time.h>
#include <sys/types.h>
#ifndef __MINGW32__
#include <sys/wait.h>
#endif
#include <unistd.h>
#include <errno.h>
#include "libmpcodecs/img_format.h"
#include "libmpcodecs/mp_image.h"
#include "m_struct.h"
#include "m_option.h"
#include "menu.h"
#include "sub/font_load.h"
#include "osdep/keycodes.h"
#include "input/input.h"
#include "osdep/timer.h"
typedef struct history_st history_t;
struct history_st {
char* buffer;
int size;
history_t* next;
history_t* prev;
};
struct menu_priv_s {
char** lines; // Our buffer
int last_line;
int num_lines;
int add_line;
unsigned int hide_ts;
unsigned int show_ts;
pid_t child; // Child process if we are running a shell cmd
int child_fd[3]; // The 3 default fd
char* prompt;
//int max_lines; // Max number of lines with the last mpi
history_t* history;
history_t* cur_history;
int history_size;
char* mp_prompt;
char* child_prompt;
int buf_lines; // Buffer size (in line)
int height; // Display size in %
int minb;
int vspace;
int bg,bg_alpha;
unsigned int hide_time;
unsigned int show_time;
int history_max;
int raw_child;
};
static struct menu_priv_s cfg_dflt = {
NULL,
0,
0,
1,
0,
0,
0,
{ 0 , 0, 0 },
NULL,
NULL,
NULL,
0,
"# ",
"$ ",
50, // lines
33, // %
3,
3,
0x80,0x40,
500,
500,
10,
0
};
#define ST_OFF(m) M_ST_OFF(struct menu_priv_s,m)
static const m_option_t cfg_fields[] = {
{ "prompt", ST_OFF(mp_prompt), CONF_TYPE_STRING, M_OPT_MIN, 1, 0, NULL },
{ "child-prompt", ST_OFF(child_prompt), CONF_TYPE_STRING, M_OPT_MIN, 1, 0, NULL },
{ "buffer-lines", ST_OFF(buf_lines), CONF_TYPE_INT, M_OPT_MIN, 5, 0, NULL },
{ "height", ST_OFF(height), CONF_TYPE_INT, M_OPT_RANGE, 1, 100, NULL },
{ "minbor", ST_OFF(minb), CONF_TYPE_INT, M_OPT_MIN, 0, 0, NULL },
{ "vspace", ST_OFF(vspace), CONF_TYPE_INT, M_OPT_MIN, 0, 0, NULL },
{ "bg", ST_OFF(bg), CONF_TYPE_INT, M_OPT_RANGE, -1, 255, NULL },
{ "bg-alpha", ST_OFF(bg_alpha), CONF_TYPE_INT, M_OPT_RANGE, 0, 255, NULL },
{ "show-time",ST_OFF(show_time), CONF_TYPE_INT, M_OPT_MIN, 0, 0, NULL },
{ "hide-time",ST_OFF(hide_time), CONF_TYPE_INT, M_OPT_MIN, 0, 0, NULL },
{ "history-size",ST_OFF(history_max), CONF_TYPE_INT, M_OPT_MIN, 1, 0, NULL },
{ "raw-child", ST_OFF(raw_child), CONF_TYPE_FLAG, 0, 0, 1, NULL },
{ NULL, NULL, NULL, 0,0,0,NULL }
};
#define mpriv (menu->priv)
static void check_child(menu_t* menu);
static void add_line(struct menu_priv_s* priv, char* l) {
char* eol = strchr(l,'\n');
if(eol) {
if(eol != l) {
eol[0] = '\0';
add_line(priv,l);
}
if(eol[1]) add_line(priv,eol+1);
return;
}
if(priv->num_lines >= priv->buf_lines)
free(priv->lines[priv->last_line]);
else
priv->num_lines++;
priv->lines[priv->last_line] = strdup(l);
priv->last_line = (priv->last_line + 1) % priv->buf_lines;
priv->add_line = 1;
}
static void add_string(struct menu_priv_s* priv, char* l) {
char* eol = strchr(l,'\n');
int ll = priv->last_line > 0 ? priv->last_line - 1 : priv->buf_lines-1;
if(priv->num_lines <= 0 || priv->add_line || eol == l) {
add_line(priv,l);
priv->add_line = 0;
return;
}
if(eol) {
eol[0] = '\0';
add_string(priv,l);
if(eol[1]) {
add_line(priv,eol+1);
priv->add_line = 0;
} else
priv->add_line = 1;
return;
}
priv->lines[ll] = realloc(priv->lines[ll],strlen(priv->lines[ll]) + strlen(l) + 1);
if ( priv->lines[ll] != NULL )
{
strcat(priv->lines[ll],l);
}
}
static void draw(menu_t* menu, mp_image_t* mpi) {
int h = mpi->h*mpriv->height/100;
int w = mpi->w - 2* mpriv->minb;
int x = mpriv->minb, y;
int lw,lh,i, ll;
if(mpriv->child) check_child(menu);
ll = mpriv->last_line - 1;
if(mpriv->hide_ts) {
unsigned int t = GetTimerMS() - mpriv->hide_ts;
if(t >= mpriv->hide_time) {
mpriv->hide_ts = 0;
menu->show = 0;
return;
}
h = mpi->h*(mpriv->height - (mpriv->height * t /mpriv->hide_time))/100;
} else if(mpriv->show_time && mpriv->show_ts == 0) {
mpriv->show_ts = GetTimerMS();
return;
} else if(mpriv->show_ts > 0) {
unsigned int t = GetTimerMS() - mpriv->show_ts;
if(t > mpriv->show_time)
mpriv->show_ts = -1;
else
h = mpi->h*(mpriv->height * t /mpriv->hide_time)/100;
}
y = h - mpriv->vspace;
if(x < 0 || y < 0 || w <= 0 || h <= 0 )
return;
if(mpriv->bg >= 0)
menu_draw_box(mpi,mpriv->bg,mpriv->bg_alpha,0,0,mpi->w,h);
if(!mpriv->child || !mpriv->raw_child){
char input[strlen(mpriv->cur_history->buffer) + strlen(mpriv->prompt) + 1];
sprintf(input,"%s%s",mpriv->prompt,mpriv->cur_history->buffer);
menu_text_size(input,w,mpriv->vspace,1,&lw,&lh);
menu_draw_text_full(mpi,input,x,y,w,h,mpriv->vspace,1,
MENU_TEXT_BOT|MENU_TEXT_LEFT,
MENU_TEXT_BOT|MENU_TEXT_LEFT);
y -= lh + mpriv->vspace;
}
for( i = 0 ; y > mpriv->minb && i < mpriv->num_lines ; i++){
int c = (ll - i) >= 0 ? ll - i : mpriv->buf_lines + ll - i;
menu_text_size(mpriv->lines[c],w,mpriv->vspace,1,&lw,&lh);
menu_draw_text_full(mpi,mpriv->lines[c],x,y,w,h,mpriv->vspace,1,
MENU_TEXT_BOT|MENU_TEXT_LEFT,
MENU_TEXT_BOT|MENU_TEXT_LEFT);
y -= lh + mpriv->vspace;
}
return;
}
static void check_child(menu_t* menu) {
#ifndef __MINGW32__
fd_set rfd;
struct timeval tv;
int max_fd = mpriv->child_fd[2] > mpriv->child_fd[1] ? mpriv->child_fd[2] :
mpriv->child_fd[1];
int i,r,child_status,w;
char buffer[256];
if(!mpriv->child) return;
memset(&tv,0,sizeof(struct timeval));
FD_ZERO(&rfd);
FD_SET(mpriv->child_fd[1],&rfd);
FD_SET(mpriv->child_fd[2],&rfd);
r = select(max_fd+1,&rfd, NULL, NULL, &tv);
if(r == 0) {
r = waitpid(mpriv->child,&child_status,WNOHANG);
if(r < 0){
if(errno==ECHILD){ ///exiting children get handled in mplayer.c
for(i = 0 ; i < 3 ; i++)
close(mpriv->child_fd[i]);
mpriv->child = 0;
mpriv->prompt = mpriv->mp_prompt;
//add_line(mpriv,"Child process exited");
}
else mp_tmsg(MSGT_GLOBAL,MSGL_ERR,"[MENU] Waitpid error: %s.\n",strerror(errno));
}
} else if(r < 0) {
mp_tmsg(MSGT_GLOBAL,MSGL_ERR,"[MENU] Select error.\n");
return;
}
w = 0;
for(i = 1 ; i < 3 ; i++) {
if(FD_ISSET(mpriv->child_fd[i],&rfd)){
if(w) mpriv->add_line = 1;
r = read(mpriv->child_fd[i],buffer,255);
if(r < 0)
mp_tmsg(MSGT_GLOBAL,MSGL_ERR,"[MENU] Read error on child's file descriptor: %s.\n", i == 1 ? "stdout":"stderr");
else if(r>0) {
buffer[r] = '\0';
add_string(mpriv,buffer);
}
w = 1;
}
}
#endif
}
#define close_pipe(pipe) close(pipe[0]); close(pipe[1])
static int run_shell_cmd(menu_t* menu, char* cmd) {
#ifndef __MINGW32__
int in[2],out[2],err[2];
mp_tmsg(MSGT_GLOBAL,MSGL_INFO,"[MENU] Console run: %s ...\n",cmd);
if(mpriv->child) {
mp_tmsg(MSGT_GLOBAL,MSGL_ERR,"[MENU] A child is already running.\n");
return 0;
}
pipe(in);
pipe(out);
pipe(err);
mpriv->child = fork();
if(mpriv->child < 0) {
mp_tmsg(MSGT_GLOBAL,MSGL_ERR,"[MENU] Fork failed !!!\n");
close_pipe(in);
close_pipe(out);
close_pipe(err);
return 0;
}
if(!mpriv->child) { // Chlid process
int err_fd = dup(2);
FILE* errf = fdopen(err_fd,"w");
// Bind the std fd to our pipes
dup2(in[0],0);
dup2(out[1],1);
dup2(err[1],2);
execl("/bin/sh","sh","-c",cmd,(void*)NULL);
fprintf(errf,"exec failed : %s\n",strerror(errno));
exit(1);
}
// MPlayer
mpriv->child_fd[0] = in[1];
mpriv->child_fd[1] = out[0];
mpriv->child_fd[2] = err[0];
mpriv->prompt = mpriv->child_prompt;
//add_line(mpriv,"Child process started");
#endif
return 1;
}
static void enter_cmd(menu_t* menu) {
history_t* h;
char input[strlen(mpriv->cur_history->buffer) + strlen(mpriv->prompt) + 1];
sprintf(input,"%s%s",mpriv->prompt,mpriv->cur_history->buffer);
add_line(mpriv,input);
if(mpriv->history == mpriv->cur_history) {
if(mpriv->history_size >= mpriv->history_max) {
history_t* i;
for(i = mpriv->history ; i->prev ; i = i->prev)
/**/;
i->next->prev = NULL;
free(i->buffer);
free(i);
} else
mpriv->history_size++;
h = calloc(1,sizeof(history_t));
h->size = 255;
h->buffer = calloc(h->size,1);
h->prev = mpriv->history;
mpriv->history->next = h;
mpriv->history = h;
} else
mpriv->history->buffer[0] = '\0';
mpriv->cur_history = mpriv->history;
//mpriv->input = mpriv->cur_history->buffer;
}
static void read_cmd(menu_t* menu,int cmd) {
switch(cmd) {
case MENU_CMD_CANCEL:
if(mpriv->hide_time)
mpriv->hide_ts = GetTimerMS();
else
menu->show = 0;
mpriv->show_ts = 0;
return;
case MENU_CMD_OK: {
mp_cmd_t* c;
if(mpriv->child) {
char *str = mpriv->cur_history->buffer;
int l = strlen(str);
while(l > 0) {
int w = write(mpriv->child_fd[0],str,l);
if(w < 0) {
mp_tmsg(MSGT_GLOBAL,MSGL_ERR,"[MENU] write error\n");
break;
}
l -= w;
str += w;
}
if(write(mpriv->child_fd[0],"\n",1) < 0)
mp_tmsg(MSGT_GLOBAL,MSGL_ERR,"[MENU] write error\n");
enter_cmd(menu);
return;
}
c = mp_input_parse_cmd(mpriv->cur_history->buffer);
enter_cmd(menu);
if(!c)
add_line(mpriv,"Invalid command try help");
else {
switch(c->id) {
case MP_CMD_CHELP:
add_line(mpriv,"MPlayer console 0.01");
add_line(mpriv,"TODO: meaningful help message ;)");
add_line(mpriv,"Enter any slave command");
add_line(mpriv,"exit close this console");
break;
case MP_CMD_CEXIT:
menu->show = 0;
menu->cl = 1;
break;
case MP_CMD_CHIDE:
if(mpriv->hide_time)
mpriv->hide_ts = GetTimerMS();
else
menu->show = 0;
mpriv->show_ts = 0;
break;
case MP_CMD_RUN:
run_shell_cmd(menu,c->args[0].v.s);
break;
default: // Send the other commands to mplayer
mp_input_queue_cmd(menu->input_ctx, c);
}
}
return;
}
case MENU_CMD_UP:
if(mpriv->cur_history->prev)
mpriv->cur_history = mpriv->cur_history->prev;
break;
case MENU_CMD_DOWN:
if(mpriv->cur_history->next)
mpriv->cur_history = mpriv->cur_history->next;
break;
}
}
static int read_key(menu_t* menu,int c) {
if(mpriv->child && mpriv->raw_child) {
write(mpriv->child_fd[0],&c,sizeof(int));
return 1;
}
if (c == KEY_DELETE || c == KEY_BS) {
unsigned int i = strlen(mpriv->cur_history->buffer);
if(i > 0)
mpriv->cur_history->buffer[i-1] = '\0';
return 1;
}
if (menu_dflt_read_key(menu, c))
return 1;
if(isascii(c)) {
int l = strlen(mpriv->cur_history->buffer);
if(l >= mpriv->cur_history->size) {
mpriv->cur_history->size += 255;
mpriv->cur_history->buffer = realloc(mpriv->cur_history,mpriv->cur_history->size);
}
mpriv->cur_history->buffer[l] = (char)c;
mpriv->cur_history->buffer[l+1] = '\0';
return 1;
}
return 0;
}
static int openMenu(menu_t* menu, char* args) {
menu->draw = draw;
menu->read_cmd = read_cmd;
menu->read_key = read_key;
mpriv->lines = calloc(mpriv->buf_lines,sizeof(char*));
mpriv->prompt = mpriv->mp_prompt;
mpriv->cur_history = mpriv->history = calloc(1,sizeof(history_t));
mpriv->cur_history->buffer = calloc(255,1);
mpriv->cur_history->size = 255;
if(args)
add_line(mpriv,args);
return 1;
}
const menu_info_t menu_info_console = {
"MPlayer console",
"console",
"Albeu",
"",
{
"console_cfg",
sizeof(struct menu_priv_s),
&cfg_dflt,
cfg_fields
},
openMenu,
};