filer.c

操作系统SunOS 4.1.3版本的源码

	char buf[MAX_FILENAME_LEN+11];  /* big enough for message */
	sprintf(buf, "%s not found.", this_file);
	msg(buf, 1);
	return 0;
    }
    return 1;
}

void
edit_proc()
{
    void edit_file_proc(), edit_sel_proc();
    int file_mode = (int)panel_get_value(filing_mode_item);

    if (file_mode) {
	(void)edit_sel_proc();
    } else {
	(void)edit_file_proc();
    }
}

void
edit_file_proc()
{
    char *filename;

    /* return if no selection */
    if (!strlen(filename = (char *)panel_get_value(fname_item))) {
	msg("Please enter a value for \"File:\".", 1);
	return;
    }

    /* return if file not found */
    if (!stat_file(filename))
	return;

    window_set(editsw, TEXTSW_FILE, filename, 0);

    window_set(edit_frame, FRAME_LABEL, filename, WIN_SHOW, TRUE, 0);
}

void
edit_sel_proc()
{
    char *filename;

    /* return if no selection */
    if (!strlen(filename = get_selection())) {
	msg("Please select a file to edit.", 0);
	return;
    }

    /* return if file not found */
    if (!stat_file(filename))
	return;

    window_set(editsw, TEXTSW_FILE, filename, 0);

    window_set(edit_frame, FRAME_LABEL, filename, WIN_SHOW, TRUE, 0);
}

void
del_proc()
{
    char    buf[300];
    char   *filename;
    int	    result;
    Event   event;   /* unused */
    int     file_mode = (int)panel_get_value(filing_mode_item);

    /* return if no selection */
    if (file_mode) {
	if (!strlen(filename = get_selection())) {
	    msg("Please select a file to delete.", 1);
	    return;
        }
    } else {
	if (!strlen(filename = (char *)panel_get_value(fname_item))) {
	    msg("Please enter a file name to delete.", 1);
	    return;
        }
    }

    /* return if file not found */
    if (!stat_file(filename))
	return;

    /* user must confirm the delete */
    result = alert_prompt(base_frame, &event,
	ALERT_MESSAGE_STRINGS,
	    "Ok to delete file:",
	    filename,
	    0,
	ALERT_BUTTON_YES,	"Confirm, delete file",
	ALERT_BUTTON_NO,	"Cancel",
	0);
    switch (result) {
	case ALERT_YES:
	    unlink(filename);
	    sprintf(buf, "%s deleted.", filename);
	    msg(buf, 0);
	    break;
	case ALERT_NO:
	    break;
	case ALERT_FAILED: /* not likely to happen unless out of memory */
	    sprintf(buf, "Ok to delete file %s?", filename);
	    result = confirm_yes(buf);
	    if (result) {
		unlink(filename);
		sprintf(buf, "%s deleted.", filename);
		msg(buf, 1);
	    }
	    break;
    }
}

int
confirm_quit()
{
    int	    result;
    Event   event;   /* unused */
    char    *msg = "Are you sure you want to Quit?";

    result = alert_prompt(base_frame, &event,
	ALERT_MESSAGE_STRINGS,
	    "Are you sure you want to Quit?",
	    0,
	ALERT_BUTTON_YES,	"Confirm",
	ALERT_BUTTON_NO,	"Cancel",
	0);
    switch (result) {
	case ALERT_YES:
	    break;
	case ALERT_NO:
	    return 0;
	case ALERT_FAILED: /* not likely to happen unless out of memory */
	    result = confirm_yes(msg);
	    if (!result) {
		return 0;
	    }
	    break;
    }
    return 1;
}

static Notify_value
filer_destroy_func(client, status)
    Notify_client	client;
    Destroy_status	status;
{
    if (status == DESTROY_CHECKING) {
	if (quit_confirmed_from_panel) {
	    return(notify_next_destroy_func(client, status));
	} else if (confirm_quit() == 0) {
	    (void) notify_veto_destroy((Notify_client)(LINT_CAST(client)));
    	    return(NOTIFY_DONE);
	}
    }
    return(notify_next_destroy_func(client, status));
}

void
quit_proc()
{
    if (confirm_quit()) {
	quit_confirmed_from_panel = 1;
        window_destroy(base_frame);
    }
}

msg(msg, beep)
    char *msg;
    int   beep;
{
    char    buf[300];
    int	    result;
    Event   event;   /* unused */
    char    *contine_msg = "Press \"Continue\" to proceed.";

    result = alert_prompt(base_frame, &event,
	ALERT_MESSAGE_STRINGS,
	    msg,
	    contine_msg,
	    0,
	ALERT_NO_BEEPING,  (beep) ? 0:1,
	ALERT_BUTTON_YES,  "Continue",
	ALERT_TRIGGER,	   ACTION_STOP, /* allow either YES or NO answer */
	0);
    switch (result) {
	case ALERT_YES:
	case ALERT_TRIGGERED: /* result of ACTION_STOP trigger */
	    break;
	case ALERT_FAILED: /* not likely to happen unless out of memory */
	    sprintf(buf, "%s  Press \"Continue\" to proceed.", msg);
	    result = confirm_ok(buf);
	    break;
    }
}

/* confirmer routines to be used if alert fails for any reason */

static Frame	init_confirmer();
static int	confirm();
static void	yes_no_ok();

int
confirm_yes(message)
    char	*message;
{
    return confirm(message, FALSE);
}

int
confirm_ok(message)
    char	*message;
{
    return confirm(message, TRUE);
}

static int
confirm(message, ok_only)
    char	*message;
    int		ok_only;
{
    Frame	confirmer;
    int		answer;

    /* create the confirmer */
    confirmer = init_confirmer(message, ok_only);
    /* make the user answer */
    answer = (int) window_loop(confirmer);
    /* destroy the confirmer */
    window_set(confirmer, FRAME_NO_CONFIRM, TRUE, 0);
    window_destroy(confirmer);
    return answer;
}

static Frame
init_confirmer(message, ok_only)
    char	*message;
    int		 ok_only;
{
    Frame		confirmer;
    Panel		panel;
    Panel_item		message_item;
    int			left, top, width, height;
    Rect		*r;
    struct pixrect	*pr;

    confirmer	 = window_create(0, FRAME, FRAME_SHOW_LABEL, FALSE, 0);
    panel	 = window_create(confirmer, PANEL, 0);
    message_item = panel_create_item(panel, PANEL_MESSAGE, 
			PANEL_LABEL_STRING, message, 0);

    if (ok_only) {
	pr = panel_button_image(panel, "Continue", 8, 0);
	width = pr->pr_width;
    } else {
	pr = panel_button_image(panel, "Cancel", 8, 0);
	width = 2 * pr->pr_width + 10;
    }

    /* center the yes/no or ok buttons under the message */
    r = (Rect *) panel_get(message_item, PANEL_ITEM_RECT);
    left = (r->r_width - width) / 2;
    if (left < 0)
	left = 0;
    top = rect_bottom(r) + 5;

    if (ok_only) {
	panel_create_item(panel, PANEL_BUTTON,
	    PANEL_ITEM_X, left, PANEL_ITEM_Y, top,
	    PANEL_LABEL_IMAGE, pr,
	    PANEL_CLIENT_DATA, 1,
	    PANEL_NOTIFY_PROC, yes_no_ok,
	    0);
    } else {
	panel_create_item(panel, PANEL_BUTTON,
	    PANEL_ITEM_X, left, PANEL_ITEM_Y, top,
	    PANEL_LABEL_IMAGE, pr,
	    PANEL_CLIENT_DATA, 0,
	    PANEL_NOTIFY_PROC, yes_no_ok,
	    0);
	panel_create_item(panel, PANEL_BUTTON,
	    PANEL_LABEL_IMAGE, panel_button_image(panel, "Confirm", 8, 0),
	    PANEL_CLIENT_DATA, 1,
	    PANEL_NOTIFY_PROC, yes_no_ok,
	    0);
    }

    window_fit(panel);
    window_fit(confirmer);

    /* center the confirmer frame on the screen */
    r		= (Rect *) window_get(confirmer, WIN_SCREEN_RECT);
    width	= (int) window_get(confirmer, WIN_WIDTH);
    height	= (int) window_get(confirmer, WIN_HEIGHT);
    left	= (r->r_width - width) / 2;
    top		= (r->r_height - height) / 2;
    if (left < 0)
	left = 0;
    if (top < 0)
	top = 0;
    window_set(confirmer, WIN_X, left, WIN_Y, top, 0);

    return confirmer;
}

static void
yes_no_ok(item, event)
    Panel_item	 item;
    Event	*event;
{
    window_return(panel_get(item, PANEL_CLIENT_DATA));
}