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Copy pathstackmenu.c
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936 lines (756 loc) · 17 KB
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#include "stackmenu.h"
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/syscall.h>
#include <time.h>
#include <poll.h>
#include <ctype.h>
#include <errno.h>
#define ANSI_COLOR_NORMAL "\e[0m"
#define ANSI_COLOR_BLACK "\e[0;30m"
#define ANSI_COLOR_RED "\e[0;31m"
#define ANSI_COLOR_GREEN "\e[0;32m"
#define ANSI_COLOR_BROWN "\e[0;33m"
#define ANSI_COLOR_BLUE "\e[0;34m"
#define ANSI_COLOR_MAGENTA "\e[0;35m"
#define ANSI_COLOR_CYAN "\e[0;36m"
#define ANSI_COLOR_LIGHTGRAY "\e[0;37m"
#define ANSI_COLOR_DARKGRAY "\e[1;30m"
#define ANSI_COLOR_LIGHTRED "\e[1;31m"
#define ANSI_COLOR_LIGHTGREEN "\e[1;32m"
#define ANSI_COLOR_YELLOW "\e[1;33m"
#define ANSI_COLOR_LIGHTBLUE "\e[1;34m"
#define ANSI_COLOR_LIGHTMAGENTA "\e[1;35m"
#define ANSI_COLOR_LIGHTCYAN "\e[1;36m"
#define ANSI_COLOR_WHITE "\e[1;37m"
#define CON ANSI_COLOR_DARKGRAY
#define COFF ANSI_COLOR_NORMAL
#if 0
/*
* Horizontal Line - width: 44
* .12345678901234567890123456789012345678901234.
*/
#define HR_SINGLE "--------------------------------------------"
#define HR_DOUBLE "============================================"
#define HR_SINGLE2 " ------------------------------------------ "
#endif
#if 0
/*
* Horizontal Line - width: 55
* .12345678901234567890123456789012345678901234567890.
*/
#define HR_SINGLE "----------------------------------------" \
"---------------"
#define HR_DOUBLE "========================================" \
"==============="
#define HR_SINGLE2 " ---------------------------------------" \
"-------------- "
#endif
/*
* Horizontal Line - width: 65
* .12345678901234567890123456789012345678901234567890.
*/
#define HR_SINGLE "----------------------------------------" \
"-------------------------"
#define HR_DOUBLE "========================================" \
"========================="
#define HR_SINGLE2 " ---------------------------------------" \
"------------------------ "
#define MAX_WIDTH (strlen(HR_SINGLE))
#define MAX_TITLE ((MAX_WIDTH)-10)
#define POS_MORE ((MAX_WIDTH)-3)
#define mmsg(fmt, args ...) { \
fprintf(stdout, fmt "\n", ## args); \
fflush(stdout); \
}
/* no newline */
#define msgn(fmt, args ...) { \
fprintf(stdout, fmt, ## args); \
fflush(stdout); \
}
/* Bold (green) */
#define msgb(fmt, args ...) { \
fprintf(stdout, ANSI_COLOR_LIGHTGREEN fmt \
ANSI_COLOR_NORMAL "\n", ## args); \
fflush(stdout); \
}
/* Property message */
#define msgp(fmt, args ...) { \
fprintf(stdout, ANSI_COLOR_LIGHTMAGENTA fmt \
ANSI_COLOR_NORMAL "\n", ## args); \
fflush(stdout); \
}
/* n indented message */
#define msgt(n, fmt, args ...) { \
fprintf(stdout, "\e[%dC" fmt "\n", \
3 + ((n) * 2), ## args); \
fflush(stdout); \
}
/* process-id(thread-id) message */
#define pmsg(fmt, args ...) { \
if (is_pid_show()) \
fprintf(stdout, "(%5d) ", get_tid()); \
fprintf(stdout, fmt "\n", ## args); fflush(stdout); \
}
/* bold */
#define pmsgb(fmt, args ...) { \
if (is_pid_show()) \
fprintf(stdout, "(%5d) ", get_tid()); \
fprintf(stdout, ANSI_COLOR_LIGHTGREEN fmt \
ANSI_COLOR_NORMAL "\n", ## args); fflush(stdout); \
}
/* n-indented */
#define pmsgt(n, fmt, args ...) { \
if (is_pid_show()) \
fprintf(stdout, "(%5d) ", get_tid()); \
fprintf(stdout, "\e[%dC" fmt "\n", 3 + ((n) * 2), ## args); \
fflush(stdout); \
}
#define MARK_DISABLE '^'
#define MARK_BLANK_KEY '_'
#define MARK_SEPARATOR '-'
#define MARK_ALWAYS_INVOKE '*'
#define DEFAULT_MENU_MENU "m"
#define DEFAULT_MENU_PREV "p"
#define DEFAULT_MENU_QUIT "q"
#define DEFAULT_MENU_NONE "-"
#define RESERVED_MENU_STRING_TOPMENU \
CON HR_SINGLE2 COFF "\n" \
CON " [ " COFF DEFAULT_MENU_MENU CON " ] " COFF "Show Menu\n" \
CON " [ " COFF DEFAULT_MENU_QUIT CON " ] " COFF "Quit"
#define RESERVED_MENU_STRING \
CON HR_SINGLE2 COFF "\n" \
CON " [ " COFF DEFAULT_MENU_PREV CON " ] " COFF "Previous menu\n" \
CON " [ " COFF DEFAULT_MENU_MENU CON " ] " COFF "Show Menu\n" \
CON " [ " COFF DEFAULT_MENU_QUIT CON " ] " COFF "Quit"
#ifdef BACKEND_GLIB
#define GStack GQueue
#define g_stack_new g_queue_new
#define g_stack_get_length g_queue_get_length
#define g_stack_push g_queue_push_tail
#define g_stack_pop g_queue_pop_tail
#else
/**
* GStack
*/
typedef struct _GList GList;
struct _GList {
void *data;
GList *next;
GList *prev;
};
typedef struct _GStack GStack;
struct _GStack {
GList *head;
GList *tail;
uint32_t length;
};
static GStack *g_stack_new(void)
{
GStack *stack;
stack = calloc(1, sizeof(GStack));
stack->head = NULL;
stack->tail = NULL;
stack->length = 0;
return stack;
}
static uint32_t g_stack_get_length(GStack *stack)
{
if (!stack)
return 0;
return stack->length;
}
static void g_stack_push(GStack *stack, void *data)
{
GList *node;
if (!stack || !data)
return;
node = calloc(1, sizeof(GList));
node->next = NULL;
node->prev = stack->tail;
node->data = data;
if (stack->tail) {
stack->tail->next = node;
stack->length++;
} else {
stack->head = stack->tail = node;
stack->length = 1;
}
}
static void *g_stack_pop(GStack *stack)
{
GList *node;
void *data;
if (!stack)
return NULL;
if (!stack->tail)
return NULL;
node = stack->tail;
if (node->prev) {
node->prev->next = NULL;
stack->length--;
} else {
stack->head = stack->tail = NULL;
stack->length = 0;
}
data = node->data;
free(node);
return data;
}
static int g_strcmp0(const char *str1, const char *str2)
{
if (!str1)
return -(str1 != str2);
if (!str2)
return str1 != str2;
return strcmp(str1, str2);
}
#endif
static void _putc(char byte)
{
ssize_t nwritten;
do {
nwritten = write(0, &byte, 1);
if (nwritten < 0 && errno != EINTR)
break;
} while (nwritten < 1);
}
/**
* Menu
*/
struct _stack_menu {
GStack *stack;
GStack *title_stack;
StackmenuItem *items;
StackmenuItem *saved_item;
char *buf;
char key_buffer[MENU_DATA_SIZE];
void *user_data;
#ifdef BACKEND_GLIB
GMainLoop *mainloop;
#endif
int exit;
};
static void _show_prompt(void)
{
struct timespec tp;
struct tm now;
clock_gettime(CLOCK_REALTIME, &tp);
localtime_r((time_t *)&tp.tv_sec, &now);
msgn("%02d:%02d:%02d.%03ld >> ", now.tm_hour, now.tm_min, now.tm_sec,
tp.tv_nsec / 1000000L)
}
static void _invoke_item_sync(Stackmenu *sm, StackmenuItem *item)
{
int ret;
if (!item->callback)
return;
ret = item->callback(sm, item, sm->user_data);
if (ret < 0) {
mmsg(ANSI_COLOR_RED "'%s' failed. (ret=%d)" COFF,
item->title, ret)
}
}
static void _show_menu(Stackmenu *sm, StackmenuItem items[])
{
StackmenuItem *si;
char title_buf[256] = {0, };
GList *cur;
int key_flag;
int disabled;
int output;
if (!items)
return;
mmsg("\n" HR_DOUBLE)
msgn(ANSI_COLOR_YELLOW " Main")
cur = sm->title_stack->head;
while (cur) {
msgn(COFF " >> " ANSI_COLOR_YELLOW "%s", (char *)cur->data)
cur = cur->next;
}
mmsg(COFF "\n" HR_SINGLE)
si = items;
while (si->key) {
key_flag = 1;
disabled = 0;
output = 0;
if (strlen(si->key) == 1) {
key_flag = 0;
switch (si->key[0]) {
case MARK_BLANK_KEY:
msgn(MENU_DEFAULT_LEFT_PADDING)
output = 1;
break;
case MARK_SEPARATOR:
mmsg(CON HR_SINGLE2 COFF)
_invoke_item_sync(sm, si);
si++;
continue;
break;
case MARK_ALWAYS_INVOKE:
break;
default:
msgn(CON " [" COFF " %c " CON "] " COFF,
si->key[0])
output = 1;
break;
}
}
if (key_flag == 1) {
output = 1;
if (si->key[0] == MARK_DISABLE) {
disabled = 1;
if (strlen(si->key + 1) == 1) {
msgn(CON " [ %c ] " COFF, si->key[1])
} else {
msgn(CON " [%3s] " COFF, si->key + 1)
}
} else {
msgn(CON " [" COFF "%3s" CON "] " COFF,
si->key)
}
}
if (si->title) {
output = 1;
memset(title_buf, 0, 256);
snprintf(title_buf, MAX_TITLE, "%s", si->title);
if (strlen(si->title) >= MAX_TITLE) {
title_buf[MAX_TITLE - 2] = '.';
title_buf[MAX_TITLE - 1] = '.';
}
if (disabled) {
msgn(CON "%s" COFF, title_buf)
} else {
msgn("%s", title_buf)
}
}
if (si->data) {
output = 1;
if (disabled) {
msgn(CON "(%s)" COFF, si->data)
} else {
msgn(ANSI_COLOR_LIGHTBLUE "(%s)" COFF,
si->data)
}
}
if (si->sub_menu) {
output = 1;
msgn("\r\e[%dC >", (int)POS_MORE)
}
if (output)
_putc('\n');
if (key_flag == 0) {
switch (si->key[0]) {
case MARK_BLANK_KEY:
case MARK_ALWAYS_INVOKE:
/* invoke the callback on menu display time */
_invoke_item_sync(sm, si);
break;
default:
break;
}
}
si++;
}
if (si == items)
mmsg(" No items");
if (g_stack_get_length(sm->stack) > 0) {
mmsg(RESERVED_MENU_STRING)
} else {
mmsg(RESERVED_MENU_STRING_TOPMENU)
}
mmsg(HR_DOUBLE)
_show_prompt();
}
static void _show_item_data_input_msg(const StackmenuItem *item)
{
mmsg("")
mmsg(HR_DOUBLE)
mmsg(" Input [%s] data ", item->title)
mmsg(HR_SINGLE)
mmsg(" current = [%s]", item->data)
msgn(" new >> ")
}
static void _move_menu(Stackmenu *sm, StackmenuItem items[], const char *key)
{
StackmenuItem *si;
int i = 0;
if (!sm->items)
return;
if (!g_strcmp0(DEFAULT_MENU_PREV, key)) {
if (g_stack_get_length(sm->stack) == 0) {
_show_prompt();
return;
}
sm->items = g_stack_pop(sm->stack);
g_stack_pop(sm->title_stack);
_show_menu(sm, sm->items);
sm->buf = sm->key_buffer;
return;
} else if (!g_strcmp0(DEFAULT_MENU_MENU, key)) {
_show_menu(sm, sm->items);
return;
} else if (!g_strcmp0(DEFAULT_MENU_QUIT, key)) {
#ifdef BACKEND_GLIB
g_main_loop_quit(sm->mainloop);
#else
sm->exit = 1;
#endif
return;
} else if (!g_strcmp0(DEFAULT_MENU_NONE, key)) {
_show_prompt();
return;
}
while (1) {
si = items + i;
if (si->key == NULL)
break;
if (si->key[0] == MARK_DISABLE) {
if (!g_strcmp0(si->key + 1, key)) {
mmsg("Disabled menu")
break;
}
}
if (!g_strcmp0(si->key, key)) {
sm->saved_item = NULL;
if (si->sub_menu) {
g_stack_push(sm->stack, sm->items);
g_stack_push(sm->title_stack,
(void *)si->title);
sm->items = si->sub_menu;
_show_menu(sm, sm->items);
sm->buf = sm->key_buffer;
}
if (si->callback && si->data == NULL) {
_invoke_item_sync(sm, si);
_show_prompt();
}
if (si->data) {
_show_item_data_input_msg(si);
sm->buf = si->data;
if (si->callback)
sm->saved_item = si;
}
return;
}
i++;
}
_show_prompt();
}
#ifdef BACKEND_GLIB
static void _show_input_ok(void)
{
mmsg(" > Saved.")
}
static int on_stack_menu_keyboard(GIOChannel *src, GIOCondition con,
gpointer data)
{
Stackmenu *sm = data;
char local_buf[MENU_DATA_SIZE + 1] = {0, };
if (fgets(local_buf, MENU_DATA_SIZE, stdin) == NULL)
return 1;
if (strlen(local_buf) > 0) {
if (local_buf[strlen(local_buf) - 1] == '\n')
local_buf[strlen(local_buf) - 1] = '\0';
}
if (sm->buf == sm->key_buffer) {
if (strlen(local_buf) < 1) {
_show_prompt();
return 1;
}
_move_menu(sm, sm->items, local_buf);
} else {
if (sm->buf) {
memset(sm->buf, 0, MENU_DATA_SIZE);
memcpy(sm->buf, local_buf, MENU_DATA_SIZE);
_show_input_ok();
if (sm->saved_item) {
_invoke_item_sync(sm, sm->saved_item);
sm->saved_item = NULL;
}
}
sm->buf = sm->key_buffer;
_move_menu(sm, sm->items, DEFAULT_MENU_MENU);
}
return 1;
}
#else
static int on_readline(Stackmenu *sm, const char *buf, int size)
{
if (sm->buf == sm->key_buffer) {
if (size < 1) {
_show_prompt();
return 1;
}
_move_menu(sm, sm->items, buf);
return 1;
}
if (sm->buf) {
memset(sm->buf, 0, MENU_DATA_SIZE);
memcpy(sm->buf, buf, MENU_DATA_SIZE);
mmsg(" > Saved.")
if (sm->saved_item) {
_invoke_item_sync(sm, sm->saved_item);
sm->saved_item = NULL;
}
}
sm->buf = sm->key_buffer;
_move_menu(sm, sm->items, DEFAULT_MENU_MENU);
return 1;
}
struct _terminal {
char buf[MENU_DATA_SIZE + 1];
int pos;
int length;
int escape;
int is_echo;
};
static void _put_esc_code(char byte)
{
_putc(0x1B);
_putc('[');
_putc(byte);
}
static int _automata(struct _terminal *term, char ch)
{
switch (term->escape) {
case 0:
if (ch == 0x1B)
term->escape = 1;
else if ((ch == '\b' || ch == 0x7F) && term->pos > 0) {
int i;
_put_esc_code('D');
_put_esc_code('s');
term->pos--;
for (i = term->pos; i <= term->length; i++) {
term->buf[i] = term->buf[i + 1];
_putc(term->buf[i]);
}
_put_esc_code('K');
_put_esc_code('u');
} else if (ch == '\n' || ch == '\r') {
if (term->is_echo)
_putc('\n');
return 1;
} else if (isprint(ch)) {
if (term->pos >= MENU_DATA_SIZE)
return 0;
term->buf[term->pos] = ch;
term->pos++;
if (term->pos > term->length)
term->length = term->pos;
if (term->is_echo)
_putc(ch);
}
break;
case 1:
if (ch == '[')
term->escape = 2;
else
term->escape = 0;
break;
case 2:
if (ch == 'D') {
/* left */
term->pos--;
if (term->pos < 0)
term->pos = 0;
else
_put_esc_code('D');
} else if (ch == 'C' && term->length > 0) {
/* right */
term->pos++;
if (term->pos > term->length)
term->pos = term->length;
else
_put_esc_code('C');
}
term->escape = 0;
break;
default:
break;
}
return 0;
}
#endif
#ifdef BACKEND_GLIB
Stackmenu *stackmenu_new(StackmenuItem items[], GMainLoop *mainloop)
#else
Stackmenu *stackmenu_new(StackmenuItem items[])
#endif
{
Stackmenu *sm;
sm = calloc(sizeof(struct _stack_menu), 1);
if (!sm)
return NULL;
sm->stack = g_stack_new();
sm->title_stack = g_stack_new();
sm->items = items;
sm->exit = 0;
#ifdef BACKEND_GLIB
sm->mainloop = mainloop;
#endif
return sm;
}
int stackmenu_run(Stackmenu *sm)
{
#ifndef BACKEND_GLIB
int nfds;
struct pollfd pollfds[1];
char buf;
ssize_t nread;
struct _terminal term;
memset(&term, 0, sizeof(struct _terminal));
#else
GIOChannel *channel = g_io_channel_unix_new(STDIN_FILENO);
/* key input */
g_io_add_watch(channel, (G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL),
on_stack_menu_keyboard, sm);
g_io_channel_unref(channel);
#endif
_show_menu(sm, sm->items);
sm->buf = sm->key_buffer;
#ifndef BACKEND_GLIB
pollfds[0].fd = 0;
while (!sm->exit) {
pollfds[0].events |= POLLIN;
nfds = poll(pollfds, 1, -1);
if (nfds == -1)
break;
if (pollfds[0].revents & POLLIN) {
nread = read(0, &buf, 1);
if (nread <= 0)
break;
if (_automata(&term, buf) == 1) {
on_readline(sm, term.buf, term.length);
memset(&term, 0, sizeof(struct _terminal));
}
}
}
#endif
return 0;
}
int stackmenu_set_user_data(Stackmenu *sm, void *user_data)
{
if (!sm)
return -1;
sm->user_data = user_data;
return 0;
}
void *stackmenu_get_user_data(const Stackmenu *sm)
{
if (!sm)
return NULL;
return sm->user_data;
}
void stackmenu_item_clear(StackmenuItem *item)
{
if (!item)
return;
if (item->key)
free(item->key);
if (item->title)
free(item->title);
if (item->data)
free(item->data);
if (item->custom_data_destroy_callback)
item->custom_data_destroy_callback(item->custom_data);
if (item->sub_menu) {
int i = 0;
for (; item->sub_menu[i].key; i++)
stackmenu_item_clear(&(item->sub_menu[i]));
free(item->sub_menu);
}
memset(item, 0, sizeof(StackmenuItem));
}
int stackmenu_item_count(const StackmenuItem *items)
{
int i = 0;
if (!items)
return -1;
for (; i < MENU_MAX_ITEMS; i++) {
if (!items[i].key)
break;
}
return i;
}
StackmenuItem *stackmenu_item_find(StackmenuItem *items, const char *key)
{
int i;
if (!key || !items)
return NULL;
for (i = 0; i < MENU_MAX_ITEMS; i++) {
if (!items[i].key)
break;
if (items[i].key[0] == MARK_DISABLE) {
if (strcmp(items[i].key + 1, key) == 0)
return items + i;
} else {
if (strcmp(items[i].key, key) == 0)
return items + i;
}
}
return NULL;
}
StackmenuItem *stackmenu_item_find_by_title(StackmenuItem *items,
const char *title)
{
int i;
if (!title || !items)
return NULL;
for (i = 0; i < MENU_MAX_ITEMS; i++) {
if (!items[i].key)
break;
if (!items[i].title)
continue;
if (strcmp(items[i].title, title) == 0)
return items + i;
}
return NULL;
}
int stackmenu_item_disable(StackmenuItem *item)
{
int i, len;
if (!item)
return -1;
if (!item->key)
return -1;
if (item->key[0] == MARK_DISABLE)
return 0;
len = strlen(item->key);
item->key[len + 1] = '\0';
for (i = len; i > 0; i--) {
item->key[i] = item->key[i - 1];
}
item->key[0] = MARK_DISABLE;
return 0;
}
int stackmenu_item_enable(StackmenuItem *item)
{
int i, len;
if (!item)
return -1;
if (!item->key)
return -1;
if (item->key[0] != MARK_DISABLE)
return 0;
len = strlen(item->key);
for (i = 0; i < len; i++)
item->key[i] = item->key[i + 1];
item->key[len - 1] = '\0';
return 0;
}
int stackmenu_item_is_enabled(const StackmenuItem *item)
{
if (!item)
return -1;
if (!item->key)
return -1;
if (item->key[0] == MARK_DISABLE)
return 0;
return 1;
}