static bool
handle_input(DIALOG_CALLBACK * cb)
{
MY_OBJ *obj = (MY_OBJ *) cb;
bool result;
int status;
char buf[MY_LEN];
if (dialog_state.pipe_input == 0) {
status = -1;
} else if ((status = read_data(buf, dialog_state.pipe_input)) > 0) {
if (isMarker(buf)) {
/*
* Historically, next line should be percentage, but one of the
* worse-written clones of 'dialog' assumes the number is missing.
* (Gresham's Law applied to software).
*/
if ((status = read_data(buf, dialog_state.pipe_input)) > 0) {
obj->prompt_buf[0] = '\0';
if (decode_percent(buf))
obj->percent = atoi(buf);
else
strcpy(obj->prompt_buf, buf);
/* Rest is message text */
while ((status = read_data(buf, dialog_state.pipe_input)) > 0
&& !isMarker(buf)) {
if (strlen(obj->prompt_buf) + strlen(buf) <
sizeof(obj->prompt_buf) - 1) {
strcat(obj->prompt_buf, buf);
}
}
if (obj->prompt != obj->prompt_buf)
free(obj->prompt);
obj->prompt = obj->prompt_buf;
}
} else if (decode_percent(buf)) {
obj->percent = atoi(buf);
}
} else {
if (feof(dialog_state.pipe_input) ||
(ferror(dialog_state.pipe_input) && errno != EINTR)) {
delink(obj);
dlg_remove_callback(cb);
}
}
if (status > 0) {
result = TRUE;
repaint_text(obj);
} else {
result = FALSE;
}
return result;
}
static bool
handle_my_getc(DIALOG_CALLBACK * cb, int ch, int fkey, int *result)
{
MY_OBJ *obj = (MY_OBJ *) cb;
bool done = FALSE;
if (!fkey && dlg_char_to_button(ch, obj->buttons) == 0) {
ch = DLGK_ENTER;
fkey = TRUE;
}
if (fkey) {
switch (ch) {
case DLGK_ENTER:
*result = DLG_EXIT_OK;
done = TRUE;
break;
case DLGK_BEGIN: /* Beginning of line */
obj->hscroll = 0;
break;
case DLGK_GRID_LEFT: /* Scroll left */
if (obj->hscroll > 0) {
obj->hscroll -= 1;
}
break;
case DLGK_GRID_RIGHT: /* Scroll right */
if (obj->hscroll < MAX_LEN)
obj->hscroll += 1;
break;
default:
beep();
break;
}
if ((obj->hscroll != obj->old_hscroll))
repaint_text(obj);
} else {
switch (ch) {
case ERR:
clearerr(cb->input);
ch = getc(cb->input);
(void) ungetc(ch, cb->input);
if (ch != EOF) {
handle_input(cb);
}
break;
case ESC:
done = TRUE;
*result = DLG_EXIT_ESC;
break;
default:
beep();
break;
}
}
return !done;
}
void
dlg_update_gauge(void *objptr, int percent)
{
MY_OBJ *obj = (MY_OBJ *) objptr;
curs_set(0);
obj->percent = percent;
repaint_text(obj);
}
static bool
handle_input(DIALOG_CALLBACK * cb)
{
MY_OBJ *obj = (MY_OBJ *) cb;
FILE *fp = obj->obj.input;
struct stat sb;
if (fstat(fileno(fp), &sb) == 0
&& sb.st_size != obj->last_pos) {
repaint_text(obj);
}
return TRUE;
}
/*
* Display text from a file in a dialog box, like in a "tail -f".
*/
int
dialog_tailbox(const char *title, const char *file, int height, int width, int bg_task)
{
/* *INDENT-OFF* */
static DLG_KEYS_BINDING binding[] = {
HELPKEY_BINDINGS,
ENTERKEY_BINDINGS,
DLG_KEYS_DATA( DLGK_BEGIN, '0' ),
DLG_KEYS_DATA( DLGK_BEGIN, KEY_BEG ),
DLG_KEYS_DATA( DLGK_GRID_LEFT, 'H' ),
DLG_KEYS_DATA( DLGK_GRID_LEFT, 'h' ),
DLG_KEYS_DATA( DLGK_GRID_LEFT, KEY_LEFT ),
DLG_KEYS_DATA( DLGK_GRID_RIGHT, 'L' ),
DLG_KEYS_DATA( DLGK_GRID_RIGHT, 'l' ),
DLG_KEYS_DATA( DLGK_GRID_RIGHT, KEY_RIGHT ),
END_KEYS_BINDING
};
/* *INDENT-ON* */
#ifdef KEY_RESIZE
int old_height = height;
int old_width = width;
#endif
int fkey;
int x, y, result, thigh;
WINDOW *dialog, *text;
const char **buttons = 0;
MY_OBJ *obj;
FILE *fd;
int min_width = 12;
/* Open input file for reading */
if ((fd = fopen(file, "rb")) == NULL)
dlg_exiterr("Can't open input file in dialog_tailbox().");
#ifdef KEY_RESIZE
retry:
#endif
dlg_auto_sizefile(title, file, &height, &width, 2, min_width);
dlg_print_size(height, width);
dlg_ctl_size(height, width);
x = dlg_box_x_ordinate(width);
y = dlg_box_y_ordinate(height);
thigh = height - ((2 * MARGIN) + (bg_task ? 0 : 2));
dialog = dlg_new_window(height, width, y, x);
dlg_mouse_setbase(x, y);
/* Create window for text region, used for scrolling text */
text = dlg_sub_window(dialog,
thigh,
width - (2 * MARGIN),
y + MARGIN,
x + MARGIN);
dlg_draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
dlg_draw_bottom_box(dialog);
dlg_draw_title(dialog, title);
dlg_draw_helpline(dialog, FALSE);
if (!bg_task) {
buttons = dlg_exit_label();
dlg_button_layout(buttons, &min_width);
dlg_draw_buttons(dialog, height - (2 * MARGIN), 0, buttons, FALSE,
FALSE, width);
}
(void) wmove(dialog, thigh, (MARGIN + 1));
(void) wnoutrefresh(dialog);
obj = dlg_calloc(MY_OBJ, 1);
assert_ptr(obj, "dialog_tailbox");
obj->obj.input = fd;
obj->obj.win = dialog;
obj->obj.handle_getc = handle_my_getc;
obj->obj.handle_input = bg_task ? handle_input : 0;
obj->obj.keep_bg = bg_task && dialog_vars.cant_kill;
obj->obj.bg_task = bg_task;
obj->text = text;
obj->buttons = buttons;
dlg_add_callback(&(obj->obj));
dlg_register_window(dialog, "tailbox", binding);
dlg_register_buttons(dialog, "tailbox", buttons);
/* Print last page of text */
dlg_attr_clear(text, thigh, getmaxx(text), dialog_attr);
repaint_text(obj);
if (bg_task) {
result = DLG_EXIT_OK;
} else {
int ch;
do {
ch = dlg_getc(dialog, &fkey);
#ifdef KEY_RESIZE
if (fkey && ch == KEY_RESIZE) {
/* reset data */
height = old_height;
width = old_width;
/* repaint */
dlg_clear();
dlg_del_window(dialog);
refresh();
dlg_mouse_free_regions();
dlg_button_layout(buttons, &min_width);
goto retry;
}
#endif
}
while (handle_my_getc(&(obj->obj), ch, fkey, &result));
}
dlg_mouse_free_regions();
return result;
}
