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edit.c
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edit.c
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/*
* $Id$
*
* by JH <[email protected]>
*
* Copyright (C) Jaakko Heinonen
*/
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <assert.h>
#include "abook_curses.h"
#include "ui.h"
#include "abook.h"
#include "database.h"
#include "gettext.h"
#include "list.h"
#include "edit.h"
#include "misc.h"
#include "views.h"
#include "xmalloc.h"
#include "color.h"
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#if defined(HAVE_LOCALE_H) && defined(HAVE_SETLOCALE)
# include <locale.h>
#endif
static void locale_date(char *str, size_t str_len, int year, int month, int day);
/*
* some extern variables
*/
extern int views_count;
WINDOW *editw;
static void
editor_tab(const int tab)
{
int i, j;
int x_pos = 2; /* current x pos */
char *tab_name;
wattrset(editw, COLOR_PAIR(CP_TAB_BORDER));
mvwhline(editw, TABLINE + 1, 0, UI_HLINE_CHAR, EDITW_COLS);
for(i = 0; i < views_count; i++) {
view_info(i, &tab_name, NULL);
int width = strwidth(tab_name) + 5;
if(x_pos + width + 1 > EDITW_COLS) {
statusline_addstr(_("Tab name too wide for screen"));
break;
}
mvwaddch(editw, TABLINE + 1, x_pos, UI_TEE_CHAR);
mvwaddch(editw, TABLINE + 1, x_pos + width - 2, UI_TEE_CHAR);
mvwaddch(editw, TABLINE, x_pos, UI_ULCORNER_CHAR);
mvwaddch(editw, TABLINE, x_pos + 1, UI_LBOXLINE_CHAR);
wattrset(editw, COLOR_PAIR(CP_TAB_LABEL));
mvwaddstr(editw, TABLINE, x_pos + 2, tab_name);
wattrset(editw, COLOR_PAIR(CP_TAB_BORDER));
mvwaddch(editw, TABLINE, x_pos + width - 3, UI_RBOXLINE_CHAR);
mvwaddch(editw, TABLINE, x_pos + width - 2, UI_URCORNER_CHAR);
if(i == tab) {
mvwaddch(editw, TABLINE + 1, x_pos, UI_LRCORNER_CHAR);
for(j = 0; j < width - 3; j++)
mvwaddstr(editw,
TABLINE + 1, x_pos + j + 1, " ");
mvwaddch(editw, TABLINE + 1, x_pos + width - 2,
UI_LLCORNER_CHAR);
}
x_pos += width;
}
}
void
get_first_email(char *str, int item)
{
char *tmp, *emails = db_email_get(item);
if(!*emails) {
*str = 0;
return;
}
strncpy(str, emails, MAX_EMAIL_LEN);
free(emails);
if( (tmp = strchr(str, ',')) )
*tmp = 0;
else
str[MAX_EMAIL_LEN - 1] = 0;
}
/* This only rolls emails from the 'email' field, not emails from any
* field of type FIELD_EMAILS.
* TODO: expand to ask for which field to roll if several are present? */
void
roll_emails(int item, enum rotate_dir dir)
{
abook_list *emails = csv_to_abook_list(db_fget(item, EMAIL));
if(!emails)
return;
free(db_fget(item, EMAIL));
abook_list_rotate(&emails, dir);
db_fput(item, EMAIL, abook_list_to_csv(emails));
abook_list_free(&emails);
}
static void
init_editor()
{
clear();
editw = newwin(EDITW_LINES, EDITW_COLS, EDITW_TOP, EDITW_X);
notimeout(editw, TRUE); /* handling of escape key */
refresh_statusline();
}
enum {
BACKUP_ITEM,
RESTORE_ITEM,
CLEAR_UNDO
};
static int
edit_undo(int item, int mode)
{
static list_item backup = NULL;
static int backed_up_item = -1;
switch(mode) {
case CLEAR_UNDO:
if(backup) {
item_empty(backup);
item_free(&backup);
}
break;
case BACKUP_ITEM:
if(backup) {
item_empty(backup);
item_free(&backup);
}
backup = item_create();
item_duplicate(backup, db_item_get(item));
backed_up_item = item;
break;
case RESTORE_ITEM:
if(backup) {
item_empty(db_item_get(backed_up_item));
item_copy(db_item_get(backed_up_item), backup);
item_free(&backup);
return backed_up_item;
}
break;
default:
assert(0);
}
return item;
}
static void
close_editor()
{
edit_undo(-1, CLEAR_UNDO);
delwin(editw);
refresh_screen();
}
static void
print_editor_header(int item)
{
char *header;
char email[MAX_EMAIL_LEN];
if((header = xmalloc(EDITW_COLS)) == NULL)
return;
get_first_email(email, item);
if(*email)
snprintf(header, EDITW_COLS, "%s <%s>",
db_name_get(item),
email);
else
snprintf(header, EDITW_COLS, "%s", db_name_get(item));
wattrset(editw, COLOR_PAIR(CP_TAB_LABEL));
mvwaddstr(editw, 0, (EDITW_COLS - strwidth(header)) / 2, header);
free(header);
}
static void
editor_print_data(int tab, int item)
{
int j = 1, nb;
int y, x;
abook_field_list *cur;
char *str;
view_info(tab, NULL, &cur);
for(; cur; cur = cur->next) {
if(j > 1) {
getyx(editw, y, x);
y++;
} else
y = FIELDS_START_Y;
wattrset(editw, COLOR_PAIR(CP_FIELD_NAME));
mvwprintw(editw, y, FIELDS_START_X, "%c - ",
(j < 10) ? '0' + j : 'A' + j - 10);
mvwaddnstr(editw, y, FIELDS_START_X + 4, cur->field->name,
bytes2width(cur->field->name,
FIELDNAME_MAX_WIDTH));
mvwaddch(editw, y, TAB_COLON_POS, ':');
wattrset(editw, COLOR_PAIR(CP_FIELD_VALUE));
if((cur->field->type == FIELD_EMAILS) ||
(cur->field->type == FIELD_LIST)) {
abook_list *emails, *e;
find_field_number(cur->field->key, &nb);
emails = csv_to_abook_list(db_fget_byid(item, nb));
for(e = emails; e; e = e->next) {
getyx(editw, y, x);
mvwaddnstr(editw, y + 1, TAB_COLON_POS + 2,
e->data,
bytes2width(e->data,
FIELD_MAX_WIDTH));
mvwaddch(editw, y + 1, TAB_COLON_POS,
UI_VLINE_CHAR);
}
if(emails) {
mvwaddch(editw, y + 2, TAB_COLON_POS,
UI_LLCORNER_CHAR);
mvwhline(editw, y + 2, TAB_COLON_POS + 1,
UI_HLINE_CHAR,
EDITW_COLS - TAB_COLON_POS - 2);
}
abook_list_free(&emails);
} else if(cur->field->type == FIELD_DATE) {
int day, month, year;
char buf[64];
find_field_number(cur->field->key, &nb);
str = db_fget_byid(item, nb);
if(parse_date_string(str, &day, &month, &year)) {
/* put locale representation of date in buf */
locale_date(buf, sizeof(buf), year, month, day);
mvwaddnstr(editw, y, TAB_COLON_POS + 2, buf,
bytes2width(buf, FIELD_MAX_WIDTH));
}
} else {
find_field_number(cur->field->key, &nb);
str = safe_str(db_fget_byid(item, nb));
mvwaddnstr(editw, y, TAB_COLON_POS + 2, str,
bytes2width(str, FIELD_MAX_WIDTH));
}
j++;
}
}
/*
* function: change_field
*
* parameters:
* (char *msg)
* message to display as a prompt
* (char **field)
* a pointer to a pointer which will point a new string. if the latter
* pointer != NULL it will be freed (if user doesn't cancel)
* (size_t max_len)
* maximum length of field to read from user
*
* returns (int)
* a nonzero value if user has cancelled and zero if user has typed a
* valid string
*/
static int
change_field(char *msg, char **field, size_t max_len)
{
char *old;
int ret = 0;
old = *field;
*field = ui_readline(msg, old, max_len - 1, 0);
if(*field) {
xfree(old);
if(!**field)
xfree(*field);
} else {
*field = old;
ret = 1;
}
clear_statusline();
refresh_statusline();
return ret;
}
static int
change_name_field(char *msg, char **field, size_t max_len)
{
char *tmp;
int ret;
tmp = xstrdup(*field);
ret = change_field(msg, field, max_len);
if(*field == NULL || ! **field) {
xfree(*field);
*field = xstrdup(tmp);
}
xfree(tmp);
return ret;
}
static void
fix_email_str(char *str)
{
for(; *str; str++)
*str = *str == ',' ? '_' : *str;
}
static void
edit_list(int item, int nb, int isemail)
{
char *field, *msg, *keys;
abook_list *list, *e;
int choice = 1, elem_count;
list = csv_to_abook_list(db_fget_byid(item, nb));
for(e = list, elem_count = 0; e; e = e->next, elem_count++)
;
if(elem_count) {
keys = xstrndup(S_("keybindings_new_123456789|n123456789"),
elem_count + 1);
msg = strdup_printf(_("Choose %s to modify (<1>%s%c%s%s."),
isemail ? _("email") : _("item"),
(elem_count > 1) ? "-<" : "",
(elem_count > 1) ? '0' + elem_count : ')',
(elem_count > 1) ? ">)" : "",
(elem_count < MAX_LIST_ITEMS) ?
_(" or <n>ew") : ""
);
choice = statusline_askchoice(
msg,
keys,
(elem_count < MAX_LIST_ITEMS) ? 1 : 2
);
free(keys);
free(msg);
}
if(choice == 0)
return;
field = (choice > 1) ?
xstrdup(abook_list_get(list, choice - 2)->data) :
NULL;
if(change_field(isemail ? _("E-mail: ") : _("Item: "),
&field, MAX_EMAIL_LEN))
return; /* user cancelled ( C-g ) */
/* TODO if list item contains commas, should use quotes instead */
if(field)
fix_email_str(field);
if(choice == 1)
abook_list_append(&list, field);
else
abook_list_replace(&list, choice - 2, field);
if(field)
xfree(field);
field = abook_list_to_csv(list);
db_fput_byid(item, nb, field ? field : xstrdup(""));
abook_list_free(&list);
}
/*
* available %-sequences:
* - %y, %Y, %m, %M, %d, %D represent year, month, and day
* (the uppercase version telling to fill with leading zeros
* if necessary)
* - %I for ISO 8601 representation
*/
static size_t
format_date(char *str, size_t str_len, char *fmt, int year, int month, int day)
{
char *s = str;
size_t len;
while(*fmt && (s - str + 1 < str_len)) {
if(*fmt != '%') {
*s++ = *fmt++;
continue;
}
len = str_len - (str - s);
switch(*++fmt) {
case 'y': s += snprintf(s, len, "%d", year); break;
case 'Y': s += snprintf(s, len, "%04d", year); break;
case 'm': s += snprintf(s, len, "%d", month); break;
case 'M': s += snprintf(s, len, "%02d", month); break;
case 'd': s += snprintf(s, len, "%d", day); break;
case 'D': s += snprintf(s, len, "%02d", day); break;
case 'I': s += format_date(s, len,
year ? "%Y-%M-%D" : "--%M-%D",
year, month, day);
break;
case '%': *s++ = '%'; break;
default: *s++ = '%'; *s++ = *fmt; break;
}
fmt++;
}
*s = 0;
return s - str;
}
/*
* str is a buffer of max length str_len, which, after calling, will
* contain a representation of the given [y, m, d] date using the
* current locale (as defined by LC_TIME).
*
* In the absence of any localization, use an ISO 8601 representation.
*/
static void
locale_date(char *str, size_t str_len, int year, int month, int day)
{
char *fmt;
#if defined(HAVE_LOCALE_H) && defined(HAVE_SETLOCALE)
fmt = year ? dcgettext(PACKAGE, "%Y-%M-%D", LC_TIME) :
dcgettext(PACKAGE, "--%M-%D", LC_TIME);
#else
fmt = "%I";
#endif
format_date(str, str_len, fmt, year, month, day);
}
static int is_valid_date(const int day, const int month, const int year)
{
int valid = 1;
int month_length[13] =
{ 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
/*
* leap year
*/
if ((!(year % 4)) && ((year % 100) || !(year % 400)))
month_length[2] = 29;
if (month < 1 || month > 12)
valid = 0;
else if (day < 1 || day > month_length[month])
valid = 0;
else if (year < 0) /* we don't accept negative year numbers */
valid = 0;
return valid;
}
int
parse_date_string(char *str, int *day, int *month, int *year)
{
int i = 0;
char buf[12], *s, *p;
assert(day && month && year);
if(!str || !*str)
return FALSE;
p = s = strncpy(buf, str, sizeof(buf));
if(*s == '-' && *s++ == '-') { /* omitted year */
*year = 0;
p = ++s;
i++;
}
while(*s) {
if(isdigit(*s)) {
s++;
continue;
} else if(*s == '-') {
if(++i > 3)
return FALSE;
*s++ = '\0';
switch(i) {
case 1: *year = safe_atoi(p); break;
case 2: *month = safe_atoi(p); break;
}
p = s;
} else
return FALSE;
}
if (i != 2 || !*p)
return FALSE;
*day = atoi(p);
return is_valid_date(*day, *month, *year);
}
static void
edit_date(int item, int nb)
{
int i, date[3], old;
char *s = db_fget_byid(item, nb);
char *field[] = { N_("Day: "), N_("Month: "), N_("Year (optional): ") };
old = parse_date_string(s, &date[0], &date[1], &date[2]);
for(i = 0; i < 3; i++) {
s = (old && date[i]) ? strdup_printf("%d", date[i]) : NULL;
if(change_field(gettext(field[i]), &s, 5))
return; /* user aborted with ^G */
date[i] = (s && is_number(s)) ? atoi(s) : 0;
if(!s) {
switch(i) {
case 0: db_fput_byid(item, nb, NULL); /*delete*/
case 1: /* fall through */ return;
}
} else
xfree(s);
}
/* ISO 8601 date, of the YYYY-MM-DD or --MM-DD format */
if(is_valid_date(date[0], date[1], date[2])) {
if(date[2])
s = strdup_printf("%04d-%02d-%02d",
date[2], date[1], date[0]);
else
s = strdup_printf("--%02d-%02d", date[1], date[0]);
db_fput_byid(item, nb, xstrdup(s));
} else
statusline_msg(_("Invalid date"));
}
/* input range: 1-9A-Z
* output range: 0-34 */
static int
key_to_field_number(char c)
{
int n = c - '1';
if(n >= 0 && n < 9)
return n;
n = c - 'A' + 9;
if(n > 8 && n < 35)
return n;
return -1;
}
static void
edit_field(int tab, char c, int item_number)
{
ui_enable_mouse(FALSE);
int i = 0, number, idx;
char *msg;
abook_field_list *f;
list_item item;
if((number = key_to_field_number(c)) < 0)
goto detachfield;
edit_undo(item_number, BACKUP_ITEM);
view_info(tab, NULL, &f);
while(1) {
if(!f)
goto detachfield;
if(i == number)
break;
f = f->next;
i++;
}
find_field_number(f->field->key, &idx);
switch(f->field->type) {
case FIELD_STRING:
msg = strdup_printf("%s: ", f->field->name);
item = db_item_get(item_number);
if(strcmp(f->field->key, "name") == 0)
change_name_field(msg,&item[idx],MAX_FIELD_LEN);
else
change_field(msg,&item[idx],MAX_FIELD_LEN);
free(msg);
break;
case FIELD_LIST:
edit_list(item_number, idx, 0);
break;
case FIELD_EMAILS:
edit_list(item_number, idx, 1);
break;
case FIELD_DATE:
edit_date(item_number, idx);
goto detachfield;
default:
assert(0);
}
detachfield:
if(opt_get_bool(BOOL_USE_MOUSE))
ui_enable_mouse(TRUE);
}
static int
edit_loop(int item)
{
static int tab = 0; /* first tab */
int c;
werase(editw);
headerline(gettext(EDITOR_HELPLINE));
refresh_statusline();
print_editor_header(item);
editor_tab(tab);
editor_print_data(tab, item);
wmove(editw, EDITW_LINES - 1, EDITW_COLS - 1);
refresh();
wrefresh(editw);
c = getch();
if(c == '\033') {
statusline_addstr("ESC-");
c = getch();
clear_statusline();
/* Escaped bindings */
switch(c) {
case 'r': roll_emails(item, ROTATE_RIGHT); break;
default: break;
}
return item;
}
if(c == KEY_MOUSE) {
MEVENT event;
if(getmouse(&event) == OK) {
if(event.bstate & BUTTON1_CLICKED
|| event.bstate & BUTTON1_DOUBLE_CLICKED) {
int window_y, window_x;
getbegyx(editw, window_y, window_x);
if(event.y == 0) {
/* if first row is selected, then go back to list */
return -1;
} else if(event.y == window_y + TABLINE
|| event.y == window_y + TABLINE + 1) {
char* tab_name;
int mouse_x = event.x;
int xpos = 2 + 1; /* look at editor_tab() and try out */
int clicked_tab = 0;
while(clicked_tab < views_count) {
view_info(clicked_tab, &tab_name, NULL);
xpos += strwidth(tab_name) + 5;
/* fprintf(stderr, "trying tab %d\n", clicked_tab); */
if(xpos >= mouse_x) {
break; /* clicked tab was found */
} else {
/* try next tab */
clicked_tab++;
}
}
if(clicked_tab < views_count) {
tab = clicked_tab;
}
} else if(event.y >= window_y + FIELDS_START_Y) {
/* is mouse in field area? */
int j = 1 + event.y - window_y - FIELDS_START_Y;
/* field numbers start with 1, but if j='0', then char='0' */
/* so fix this, by adding 1 to j */
int field_char = (j < 10) ? '0' + j : 'A' + j - 10;
edit_field(tab, field_char, item);
}
} else if(event.bstate & BUTTON4_PRESSED) {
tab = tab == 0 ? views_count - 1 : tab - 1;
}
else if(event.bstate & BUTTON5_PRESSED) {
tab = tab == views_count - 1 ? 0 : tab + 1;
}
return item;
}
}
/* No uppercase nor numeric key should be used in this menu,
* as they are reserved for field selection */
switch(c) {
case 'h':
case KEY_LEFT: tab = tab == 0 ? views_count - 1 : tab - 1;
break;
case 'l':
case KEY_RIGHT: tab = tab == views_count - 1 ? 0 : tab + 1;
break;
case KEY_UP:
case '<':
case 'k': if(is_valid_item(item - 1)) item--; break;
case KEY_DOWN:
case '>':
case 'j': if(is_valid_item(item + 1)) item++; break;
case 'r': roll_emails(item, ROTATE_LEFT); break;
case '?': display_help(HELP_EDITOR); break;
case 'u': item = edit_undo(item, RESTORE_ITEM); break;
case 'm': launch_mutt(item); clearok(stdscr, 1); break;
case 'v': launch_wwwbrowser(item); clearok(stdscr, 1); break;
case 12 : clearok(stdscr, 1); break; /* ^L (refresh screen) */
case 'q': return -1;
default: edit_field(tab, c, item);
}
return item;
}
void
edit_item(int item)
{
if(item < 0) {
if(list_get_curitem() < 0)
return;
else
item = list_get_curitem();
}
init_editor();
while((item = edit_loop(item)) >= 0)
list_set_curitem(item); /* this is not very clean way to go */
close_editor();
}
void
add_item()
{
char *field = NULL;
list_item item = item_create();
change_field(_("Name: "), &field, MAX_FIELD_LEN);
if( field == NULL )
return;
item_fput(item, NAME, field);
add_item2database(item);
item_free(&item);
list_set_curitem(last_item());
edit_item(last_item());
}