Exemple #1
0
std::string get_verbatim_kbinput(WINDOW *win)
{
	/* Turn off flow control characters if necessary so that we can type them in verbatim */
	if (ISSET(PRESERVE)) {
		disable_flow_control();
	}
	std::string result = get_kbinput(win).verbatim();

	/* Turn flow control characters back on if necessary */
	if (ISSET(PRESERVE)) {
		enable_flow_control();
	}

	return result;
}
Exemple #2
0
/* Read in a character, interpret it as a shortcut or toggle if
 * necessary, and return it.
 * Set ran_func to TRUE if we ran a function associated with a
 * shortcut key, and set finished to TRUE if we're done after running
 * or trying to run a function associated with a shortcut key.
 * refresh_func is the function we will call to refresh the edit window. */
int do_statusbar_input(bool *ran_func, bool *finished,
	void (*refresh_func)(void))
{
    int input;
	/* The character we read in. */
    static int *kbinput = NULL;
	/* The input buffer. */
    static size_t kbinput_len = 0;
	/* The length of the input buffer. */
    const sc *s;
    bool have_shortcut = FALSE;
    const subnfunc *f;

    *ran_func = FALSE;
    *finished = FALSE;

    /* Read in a character. */
    input = get_kbinput(bottomwin);

#ifndef NANO_TINY
    if (input == KEY_WINCH)
	return KEY_WINCH;
#endif

#ifndef DISABLE_MOUSE
    /* If we got a mouse click and it was on a shortcut, read in the
     * shortcut character. */
    if (func_key && input == KEY_MOUSE) {
	if (do_statusbar_mouse() == 1)
	    input = get_kbinput(bottomwin);
	else {
	    meta_key = FALSE;
	    func_key = FALSE;
	    input = ERR;
	}
    }
#endif

    /* Check for a shortcut in the current list. */
    s = get_shortcut(&input);

    /* If we got a shortcut from the current list, or a "universal"
     * statusbar prompt shortcut, set have_shortcut to TRUE. */
    have_shortcut = (s != NULL);

    /* If we got a non-high-bit control key, a meta key sequence, or a
     * function key, and it's not a shortcut or toggle, throw it out. */
    if (!have_shortcut) {
	if (is_ascii_cntrl_char(input) || meta_key || func_key) {
	    beep();
	    meta_key = FALSE;
	    func_key = FALSE;
	    input = ERR;
	}
    }

    /* If we got a character, and it isn't a shortcut or toggle,
     * it's a normal text character.  Display the warning if we're
     * in view mode, or add the character to the input buffer if
     * we're not. */
    if (input != ERR && !have_shortcut) {
	/* If we're using restricted mode, the filename isn't blank,
	 * and we're at the "Write File" prompt, disable text input. */
	if (!ISSET(RESTRICTED) || openfile->filename[0] == '\0' ||
		currmenu != MWRITEFILE) {
	    kbinput_len++;
	    kbinput = (int *)nrealloc(kbinput, kbinput_len * sizeof(int));
	    kbinput[kbinput_len - 1] = input;
	}
     }

    /* If we got a shortcut, or if there aren't any other characters
     * waiting after the one we read in, we need to display all the
     * characters in the input buffer if it isn't empty. */
    if (have_shortcut || get_key_buffer_len() == 0) {
	if (kbinput != NULL) {
	    /* Display all the characters in the input buffer at
	     * once, filtering out control characters. */
	    char *output = charalloc(kbinput_len + 1);
	    size_t i;
	    bool got_enter;
		/* Whether we got the Enter key. */

	    for (i = 0; i < kbinput_len; i++)
		output[i] = (char)kbinput[i];
	    output[i] = '\0';

	    do_statusbar_output(output, kbinput_len, &got_enter, FALSE);

	    free(output);

	    /* Empty the input buffer. */
	    kbinput_len = 0;
	    free(kbinput);
	    kbinput = NULL;
	}

	if (have_shortcut) {
	    if (s->scfunc == do_tab || s->scfunc == do_enter_void)
		;
	    else if (s->scfunc == total_refresh)
		total_statusbar_refresh(refresh_func);
	    else if (s->scfunc == do_cut_text_void) {
		/* If we're using restricted mode, the filename
		 * isn't blank, and we're at the "Write File"
		 * prompt, disable Cut. */
		if (!ISSET(RESTRICTED) || openfile->filename[0] ==
			'\0' || currmenu != MWRITEFILE)
		    do_statusbar_cut_text();
	    } else if (s->scfunc == do_left)
		do_statusbar_left();
	    else if (s->scfunc == do_right)
		do_statusbar_right();
#ifndef NANO_TINY
	    else if (s->scfunc == do_prev_word_void)
		do_statusbar_prev_word(FALSE);
	    else if (s->scfunc == do_next_word_void)
		do_statusbar_next_word(FALSE);
#endif
	    else if (s->scfunc == do_home)
		do_statusbar_home();
	    else if (s->scfunc == do_end)
		do_statusbar_end();
	    else if (s->scfunc == do_verbatim_input) {
		/* If we're using restricted mode, the filename
		 * isn't blank, and we're at the "Write File"
		 * prompt, disable verbatim input. */
		if (!ISSET(RESTRICTED) || currmenu != MWRITEFILE ||
			openfile->filename[0] == '\0') {
		    bool got_enter;
		    /* Whether we got the Enter key. */

		    do_statusbar_verbatim_input(&got_enter);

		    /* If we got the Enter key, remove it from the input
		     * buffer, set input to the key value for Enter, and
		     * set finished to TRUE to indicate that we're done. */
		    if (got_enter) {
			get_input(NULL, 1);
			input = sc_seq_or(do_enter_void, 0);
			*finished = TRUE;
		    }
		}
	    } else if (s->scfunc == do_delete) {
		/* If we're using restricted mode, the filename
		 * isn't blank, and we're at the "Write File"
		 * prompt, disable Delete. */
		if (!ISSET(RESTRICTED) || openfile->filename[0] ==
			'\0' || currmenu != MWRITEFILE)
		    do_statusbar_delete();
	    } else if (s->scfunc == do_backspace) {
		/* If we're using restricted mode, the filename
		 * isn't blank, and we're at the "Write File"
		 * prompt, disable Backspace. */
		if (!ISSET(RESTRICTED) || openfile->filename[0] ==
			'\0' || currmenu != MWRITEFILE)
		    do_statusbar_backspace();
	    } else {
		/* Handle any other shortcut in the current menu, setting
		 * ran_func to TRUE if we try to run their associated
		 * functions and setting finished to TRUE to indicate
		 * that we're done after running or trying to run their
		 * associated functions. */
		f = sctofunc((sc *) s);
		if (s->scfunc != NULL) {
		    *ran_func = TRUE;
		    if (f && (!ISSET(VIEW_MODE) || f->viewok) &&
				f->scfunc != do_gotolinecolumn_void)
			f->scfunc();
		}
		*finished = TRUE;
	    }
	}
    }

    return input;
}
Exemple #3
0
int do_dictionary_prompt(bool all, const char *msg, char *str)
{
    s_list l;
    s_node *p;
    int ok = -2, width = 16;
    const char *yesstr;		/* String of Yes characters accepted. */
    const char *nostr;		/* Same for No. */
    const char *allstr;		/* And All, surprise! */
    int u;
    char **thisarray = (char **)malloc(sizeof(char)*5);
	for(u = 0; u < 5; u++)
		thisarray[u] = (char *)malloc(sizeof(char)*16);
    thisarray = thisfunc(str);
    int oldmenu = currmenu;
    char but[16];
    int i, j = 0;
    int count = 0;
    int t = 0;
    int bs = 0;
    char buf[16];
    strcpy(buf, str);
    int tp;
    int we = 0, wc = 0;
    
    tp = typepos();
    
    assert(msg != NULL);
    
    s_init(&l);
    u = 0;
    while(u < 5) {
	s_append(&l, thisarray[u]);
	u++;
    }
    /*Now partial matched list is prepared*/
           p = l.head;
           

    if(str == NULL){
 
        count = 0;

        
        while(p){
            count++;
            p = p->next;
        }
    }
    
    //count=5;

    p = l.head;


    do {
	int kbinput;
	functionptrtype func;
        i = 0;
#ifndef DISABLE_MOUSE
	int mouse_x, mouse_y;
#endif

	if (!ISSET(NO_HELP)) {
	    char shortstr[3];
		/* Temporary string for (translated) " Y", " N" and " A". */

	    if (COLS < 32)
		width = COLS / 2;

	    /* Clear the shortcut list from the bottom of the screen. */
	    blank_bottombars();

	    /* Now show the ones for "Yes", "No", "Cancel" and maybe "All". */


	    if (all) {
		shortstr[1] = allstr[0];
		wmove(bottomwin, 1, width);
		onekey(shortstr, _("All"), width);
	    }

            for(i = 0; i < count && i < 5; i++){
                sprintf(but, "%d", i + 1);
                if(i == 0) wmove(bottomwin, 1, 0);
                else wmove(bottomwin, 1, i * width);
                if(p){
                    onekey(but, p->word, width);
                    p = p->next;
                }
                j++;
            }

	    wmove(bottomwin, 1, i * width);
	    onekey("^C", _("Cancel"), width);
	}

	if (interface_color_pair[TITLE_BAR].bright)
	    wattron(bottomwin, A_BOLD);
	wattron(bottomwin, interface_color_pair[TITLE_BAR].pairnum);

	blank_statusbar();
	mvwaddnstr(bottomwin, 0, 0, msg, actual_x(msg, COLS - 1));

	wattroff(bottomwin, A_BOLD);
	wattroff(bottomwin, interface_color_pair[TITLE_BAR].pairnum);

	/* Refresh edit window and statusbar before getting input. */
	wnoutrefresh(edit);
	wnoutrefresh(bottomwin);

	currmenu = MYESNO;
	kbinput = get_kbinput(bottomwin);

#ifndef NANO_TINY
	if (kbinput == KEY_WINCH)
	    continue;
#endif
        /*49 is 1, 50 is 2 and so on*/

	func = func_from_key(&kbinput);

	if (func == do_cancel){
	    ok = 0;
            return ok;
        }
  
        if(kbinput == 's'){
            if(i == 5) {
                continue;
            }
        }
        if(kbinput <= '0' || kbinput > '0' + count) return -1;
        
        if(kbinput > '0' && kbinput <= '0' + count){
            p = l.head;
            i = kbinput - '0' - 1;
            if(j > 5) t = j - 5 + i;
            else t = i;

            while(t--) if(p){
                        p = p->next;
                        }
            
            if(tp == 1 || tp == 2){
                bs = strlen(str);
                while(bs--) do_backspace();
            }
            

            if(tp == 6 || tp == 7){
                if(str != NULL){


                    we = openfile->current_x;

                    while(openfile->current->data[we] != ' ' && openfile->current->data[we] != '\00'){
                     we++;
                        wc++;
                        do_right();
                    }

                    we--;
                    while(openfile->current->data[we] != ' ' && openfile->current->data[we] != '\00'){

                        do_backspace();
                        we--;
                    }
                }
            }
            
            
            do_output(p->word, strlen(p->word), FALSE);
            return tp;
        }


	else if (func == total_refresh) {
	    total_redraw();
	    continue;
	} else {
		/* Look for the kbinput in the Yes, No and (optionally)
		 * All strings. */
		if (strchr(yesstr, kbinput) != NULL)
		    ok = 1;
		else if (strchr(nostr, kbinput) != NULL)
		    ok = 0;
		else if (all && strchr(allstr, kbinput) != NULL)
		    ok = 2;
	}
        i = 0;
        p = l.head;
        
    } while (ok == -2);

    currmenu = oldmenu;
    return ok;
}
Exemple #4
0
/* Ask a simple Yes/No (and optionally All) question, specified in msg,
 * on the statusbar.  Return 1 for Yes, 0 for No, 2 for All (if all is
 * TRUE when passed in), and -1 for Cancel. */
int do_yesno_prompt(bool all, const char *msg)
{
    int ok = -2, width = 16;
    const char *yesstr;		/* String of Yes characters accepted. */
    const char *nostr;		/* Same for No. */
    const char *allstr;		/* And All, surprise! */
    int oldmenu = currmenu;

    assert(msg != NULL);

    /* yesstr, nostr, and allstr are strings of any length.  Each string
     * consists of all single-byte characters accepted as valid
     * characters for that value.  The first value will be the one
     * displayed in the shortcuts. */
    /* TRANSLATORS: For the next three strings, if possible, specify
     * the single-byte shortcuts for both your language and English.
     * For example, in French: "OoYy" for "Oui". */
    yesstr = _("Yy");
    nostr = _("Nn");
    allstr = _("Aa");

    do {
	int kbinput;
	functionptrtype func;
#ifndef DISABLE_MOUSE
	int mouse_x, mouse_y;
#endif

	if (!ISSET(NO_HELP)) {
	    char shortstr[3];
		/* Temporary string for (translated) " Y", " N" and " A". */

	    if (COLS < 32)
		width = COLS / 2;

	    /* Clear the shortcut list from the bottom of the screen. */
	    blank_bottombars();

	    /* Now show the ones for "Yes", "No", "Cancel" and maybe "All". */
	    sprintf(shortstr, " %c", yesstr[0]);
	    wmove(bottomwin, 1, 0);
	    onekey(shortstr, _("Yes"), width);

	    if (all) {
		shortstr[1] = allstr[0];
		wmove(bottomwin, 1, width);
		onekey(shortstr, _("All"), width);
	    }

	    shortstr[1] = nostr[0];
	    wmove(bottomwin, 2, 0);
	    onekey(shortstr, _("No"), width);

	    wmove(bottomwin, 2, width);
	    onekey("^C", _("Cancel"), width);
	}

	if (interface_color_pair[TITLE_BAR].bright)
	    wattron(bottomwin, A_BOLD);
	wattron(bottomwin, interface_color_pair[TITLE_BAR].pairnum);

	blank_statusbar();
	mvwaddnstr(bottomwin, 0, 0, msg, actual_x(msg, COLS - 1));

	wattroff(bottomwin, A_BOLD);
	wattroff(bottomwin, interface_color_pair[TITLE_BAR].pairnum);

	/* Refresh edit window and statusbar before getting input. */
	wnoutrefresh(edit);
	wnoutrefresh(bottomwin);

	currmenu = MYESNO;
	kbinput = get_kbinput(bottomwin);

#ifndef NANO_TINY
	if (kbinput == KEY_WINCH)
	    continue;
#endif

	func = func_from_key(&kbinput);

	if (func == do_cancel)
	    ok = -1;
#ifndef DISABLE_MOUSE
	else if (kbinput == KEY_MOUSE) {
		/* We can click on the Yes/No/All shortcut list to
		 * select an answer. */
		if (get_mouseinput(&mouse_x, &mouse_y, FALSE) == 0 &&
			wmouse_trafo(bottomwin, &mouse_y, &mouse_x,
			FALSE) && mouse_x < (width * 2) &&
			mouse_y > 0) {
		    int x = mouse_x / width;
			/* Calculate the x-coordinate relative to the
			 * two columns of the Yes/No/All shortcuts in
			 * bottomwin. */
		    int y = mouse_y - 1;
			/* Calculate the y-coordinate relative to the
			 * beginning of the Yes/No/All shortcuts in
			 * bottomwin, i.e. with the sizes of topwin,
			 * edit, and the first line of bottomwin
			 * subtracted out. */

		    assert(0 <= x && x <= 1 && 0 <= y && y <= 1);

		    /* x == 0 means they clicked Yes or No.  y == 0
		     * means Yes or All. */
		    ok = -2 * x * y + x - y + 1;

		    if (ok == 2 && !all)
			ok = -2;
		}
	}
#endif /* !DISABLE_MOUSE */
	else if (func == total_refresh) {
	    total_redraw();
	    continue;
	} else {
		/* Look for the kbinput in the Yes, No and (optionally)
		 * All strings. */
		if (strchr(yesstr, kbinput) != NULL)
		    ok = 1;
		else if (strchr(nostr, kbinput) != NULL)
		    ok = 0;
		else if (all && strchr(allstr, kbinput) != NULL)
		    ok = 2;
	}
    } while (ok == -2);

    currmenu = oldmenu;
    return ok;
}
Exemple #5
0
/* Our main file browser function.  path is the tilde-expanded path we
 * start browsing from. */
char *do_browser(char *path, DIR *dir)
{
    char *retval = NULL;
    int kbinput;
    bool old_const_update = ISSET(CONST_UPDATE);
    char *prev_dir = NULL;
	/* The directory we were in before backing up to "..". */
    char *ans = NULL;
	/* The last answer the user typed at the statusbar prompt. */
    size_t old_selected;
	/* The selected file we had before the current selected file. */
    functionptrtype func;
	/* The function of the key the user typed in. */

    curs_set(0);
    blank_statusbar();
    bottombars(MBROWSER);
    wnoutrefresh(bottomwin);

    UNSET(CONST_UPDATE);

    ans = mallocstrcpy(NULL, "");

  change_browser_directory:
	/* We go here after we select a new directory. */

    /* Start with no key pressed. */
    kbinput = ERR;

    path = mallocstrassn(path, get_full_path(path));

    /* Save the current path in order to be used later. */
    path_save = path;

    assert(path != NULL && path[strlen(path) - 1] == '/');

    /* Get the file list, and set longest and width in the process. */
    browser_init(path, dir);

    assert(filelist != NULL);

    /* Sort the file list. */
    qsort(filelist, filelist_len, sizeof(char *), diralphasort);

    /* If prev_dir isn't NULL, select the directory saved in it, and
     * then blow it away. */
    if (prev_dir != NULL) {
	browser_select_dirname(prev_dir);

	free(prev_dir);
	prev_dir = NULL;
    /* Otherwise, select the first file or directory in the list. */
    } else
	selected = 0;

    old_selected = (size_t)-1;

    titlebar(path);

    while (TRUE) {
	struct stat st;
	int i;
	size_t fileline = selected / width;
		/* The line number the selected file is on. */
	char *new_path;
		/* The path we switch to at the "Go to Directory"
		 * prompt. */

	/* Display the file list if we don't have a key, or if the
	 * selected file has changed, and set width in the process. */
	if (kbinput == ERR || old_selected != selected)
	    browser_refresh();

	old_selected = selected;

	kbinput = get_kbinput(edit);

#ifndef NANO_TINY
	if (kbinput == KEY_WINCH) {
	    kbinput = ERR;
	    curs_set(0);
	    continue;
	}
#endif

#ifndef DISABLE_MOUSE
	if (kbinput == KEY_MOUSE) {
	    int mouse_x, mouse_y;

	    /* We can click on the edit window to select a
	     * filename. */
	    if (get_mouseinput(&mouse_x, &mouse_y, TRUE) == 0 &&
		wmouse_trafo(edit, &mouse_y, &mouse_x, FALSE)) {
		/* longest is the width of each column.  There
		 * are two spaces between each column. */
		selected = (fileline / editwinrows) *
				(editwinrows * width) + (mouse_y *
				width) + (mouse_x / (longest + 2));

		/* If they clicked beyond the end of a row,
		 * select the last filename in that row. */
		if (mouse_x > width * (longest + 2))
		    selected--;

		/* If we're off the screen, select the last filename. */
		if (selected > filelist_len - 1)
		    selected = filelist_len - 1;

		/* If we selected the same filename as last time,
		 * put back the Enter key so that it's read in. */
		if (old_selected == selected)
		    unget_kbinput(sc_seq_or(do_enter_void, 0), FALSE, FALSE);
	    }
	}
#endif /* !DISABLE_MOUSE */

	func = parse_browser_input(&kbinput);

	if (func == total_refresh) {
	    total_redraw();
	} else if (func == do_help_void) {
#ifndef DISABLE_HELP
	    do_help_void();
	    /* Perhaps the window dimensions have changed. */
	    browser_refresh();
	    curs_set(0);
#else
	    nano_disabled_msg();
#endif
	} else if (func == do_search) {
	    /* Search for a filename. */
	    curs_set(1);
	    do_filesearch();
	    curs_set(0);
	} else if (func == do_research) {
	    /* Search for another filename. */
	    do_fileresearch();
	} else if (func == do_page_up) {
	    if (selected >= (editwinrows + fileline % editwinrows) * width)
		selected -= (editwinrows + fileline % editwinrows) * width;
	    else
		selected = 0;
	} else if (func == do_page_down) {
	    selected += (editwinrows - fileline % editwinrows) * width;
	    if (selected > filelist_len - 1)
		selected = filelist_len - 1;
	} else if (func == do_first_file) {
	    selected = 0;
	} else if (func == do_last_file) {
	    selected = filelist_len - 1;
	} else if (func == goto_dir_void) {
	    /* Go to a specific directory. */
	    curs_set(1);
	    i = do_prompt(TRUE,
#ifndef DISABLE_TABCOMP
			FALSE,
#endif
			MGOTODIR, ans,
#ifndef DISABLE_HISTORIES
			NULL,
#endif
			/* TRANSLATORS: This is a prompt. */
			browser_refresh, _("Go To Directory"));

	    curs_set(0);
	    bottombars(MBROWSER);

	    /* If the directory begins with a newline (i.e. an
	     * encoded null), treat it as though it's blank. */
	    if (i < 0 || *answer == '\n') {
		/* We canceled.  Indicate that on the statusbar, and
		* blank out ans, since we're done with it. */
		statusbar(_("Cancelled"));
		ans = mallocstrcpy(ans, "");
		continue;
	    } else if (i != 0) {
		/* Put back the "Go to Directory" key and save
		 * answer in ans, so that the file list is displayed
		 * again, the prompt is displayed again, and what we
		 * typed before at the prompt is displayed again. */
		unget_kbinput(sc_seq_or(do_gotolinecolumn_void, 0), FALSE, FALSE);
		ans = mallocstrcpy(ans, answer);
		continue;
	    }

	    /* We have a directory.  Blank out ans, since we're done
	     * with it. */
	    ans = mallocstrcpy(ans, "");

	    /* Convert newlines to nulls, just before we go to the
	     * directory. */
	    sunder(answer);
	    align(&answer);

	    new_path = real_dir_from_tilde(answer);

	    if (new_path[0] != '/') {
		new_path = charealloc(new_path, strlen(path) +
				strlen(answer) + 1);
		sprintf(new_path, "%s%s", path, answer);
	    }

#ifndef DISABLE_OPERATINGDIR
	    if (check_operating_dir(new_path, FALSE)) {
		statusbar(_("Can't go outside of %s in restricted mode"),
				operating_dir);
		free(new_path);
		continue;
	    }
#endif

	    dir = opendir(new_path);
	    if (dir == NULL) {
		/* We can't open this directory for some reason.
		* Complain. */
		statusbar(_("Error reading %s: %s"), answer,
				strerror(errno));
		beep();
		free(new_path);
		continue;
	    }

	    /* Start over again with the new path value. */
	    free(path);
	    path = new_path;
	    goto change_browser_directory;
	} else if (func == do_up_void) {
	    if (selected >= width)
		selected -= width;
	} else if (func == do_down_void) {
	    if (selected + width <= filelist_len - 1)
		selected += width;
	} else if (func == do_left) {
	    if (selected > 0)
		selected--;
	} else if (func == do_right) {
	    if (selected < filelist_len - 1)
		selected++;
	} else if (func == do_enter_void) {
	    /* We can't move up from "/". */
	    if (strcmp(filelist[selected], "/..") == 0) {
		statusbar(_("Can't move up a directory"));
		beep();
		continue;
	    }

#ifndef DISABLE_OPERATINGDIR
	    /* Note: The selected file can be outside the operating
	     * directory if it's ".." or if it's a symlink to a
	     * directory outside the operating directory. */
	    if (check_operating_dir(filelist[selected], FALSE)) {
		statusbar(_("Can't go outside of %s in restricted mode"),
				operating_dir);
		beep();
		continue;
	    }
#endif

	    if (stat(filelist[selected], &st) == -1) {
		/* We can't open this file for some reason.
		 * Complain. */
		 statusbar(_("Error reading %s: %s"),
				filelist[selected], strerror(errno));
		 beep();
		 continue;
	    }

	    if (!S_ISDIR(st.st_mode)) {
		/* We've successfully opened a file, we're done, so
		 * get out. */
		retval = mallocstrcpy(NULL, filelist[selected]);
		break;
	    } else if (strcmp(tail(filelist[selected]), "..") == 0)
		/* We've successfully opened the parent directory,
		 * save the current directory in prev_dir, so that
		 * we can easily return to it by hitting Enter. */
		prev_dir = mallocstrcpy(NULL, striponedir(filelist[selected]));

	    dir = opendir(filelist[selected]);
	    if (dir == NULL) {
		/* We can't open this directory for some reason.
		 * Complain. */
		statusbar(_("Error reading %s: %s"),
				filelist[selected], strerror(errno));
		beep();
		continue;
	    }

	    path = mallocstrcpy(path, filelist[selected]);

	    /* Start over again with the new path value. */
	    goto change_browser_directory;
	} else if (func == do_exit) {
	    /* Exit from the file browser. */
	    break;
	}
    }
    titlebar(NULL);
    edit_refresh();
    curs_set(1);
    if (old_const_update)
	SET(CONST_UPDATE);

    free(path);
    free(ans);

    free_chararray(filelist, filelist_len);
    filelist = NULL;
    filelist_len = 0;

    return retval;
}
Exemple #6
0
/* Our main help-viewer function. */
void do_help(void)
{
    int kbinput = ERR;
    bool old_no_help = ISSET(NO_HELP);
    size_t line = 0;
	/* The line number in help_text of the first displayed help
	 * line.  This variable is zero-based. */
    size_t last_line = 0;
	/* The line number in help_text of the last help line.  This
	 * variable is zero-based. */
    int oldmenu = currmenu;
	/* The menu we were called from. */
    const char *ptr;
	/* The current line of the help text. */
    size_t old_line = (size_t)-1;
	/* The line we were on before the current line. */
    functionptrtype func;
	/* The function of the key the user typed in. */

    /* Don't show a cursor in the help screen. */
    curs_set(0);
    blank_edit();
    blank_statusbar();

    /* Set help_text as the string to display. */
    help_init();

    assert(help_text != NULL);

    if (ISSET(NO_HELP)) {
	/* Make sure that the help screen's shortcut list will actually
	 * be displayed. */
	UNSET(NO_HELP);
	window_init();
    }

    bottombars(MHELP);
    wnoutrefresh(bottomwin);

    while (TRUE) {
	size_t i;

	ptr = help_text;

	/* Find the line number of the last line of the help text. */
	for (last_line = 0; *ptr != '\0'; last_line++) {
	    ptr += help_line_len(ptr);
	    if (*ptr == '\n')
		ptr++;
	}

	if (last_line > 0)
	    last_line--;

	/* Redisplay if the text was scrolled or an invalid key was pressed. */
	if (line != old_line || kbinput == ERR) {
	    blank_edit();

	    ptr = help_text;

	    /* Advance in the text to the first line to be displayed. */
	    for (i = 0; i < line; i++) {
		ptr += help_line_len(ptr);
		if (*ptr == '\n')
		    ptr++;
	    }

	    /* Now display as many lines as the window will hold. */
	    for (i = 0; i < editwinrows && *ptr != '\0'; i++) {
		size_t j = help_line_len(ptr);

		mvwaddnstr(edit, i, 0, ptr, j);
		ptr += j;
		if (*ptr == '\n')
		    ptr++;
	    }
	}

	wnoutrefresh(edit);

	old_line = line;

	lastmessage = HUSH;

	kbinput = get_kbinput(edit);

#ifndef NANO_TINY
	if (kbinput == KEY_WINCH) {
	    kbinput = ERR;
	    continue;    /* Redraw the screen. */
	}
#endif

#ifndef DISABLE_MOUSE
	if (kbinput == KEY_MOUSE) {
	    int mouse_x, mouse_y;
	    get_mouseinput(&mouse_x, &mouse_y, TRUE);
	    continue;    /* Redraw the screen. */
	}
#endif

	func = parse_help_input(&kbinput);

	if (func == total_refresh) {
	    total_redraw();
	} else if (func == do_up_void) {
	    if (line > 0)
		line--;
	} else if (func == do_down_void) {
	    if (line + (editwinrows - 1) < last_line)
		line++;
	} else if (func == do_page_up) {
	    if (line > editwinrows - 2)
		line -= editwinrows - 2;
	    else
		line = 0;
	} else if (func == do_page_down) {
	    if (line + (editwinrows - 1) < last_line)
		line += editwinrows - 2;
	} else if (func == do_first_line) {
	    line = 0;
	} else if (func == do_last_line) {
	    if (line + (editwinrows - 1) < last_line)
		line = last_line - (editwinrows - 1);
	} else if (func == do_exit) {
	    /* Exit from the help viewer. */
	    break;
	} else
	    unbound_key(kbinput);
    }

    if (old_no_help) {
	blank_bottombars();
	wnoutrefresh(bottomwin);
	currmenu = oldmenu;
	SET(NO_HELP);
	window_init();
    } else
	bottombars(oldmenu);

#ifndef DISABLE_BROWSER
    if (oldmenu == MBROWSER || oldmenu == MWHEREISFILE || oldmenu == MGOTODIR)
	browser_refresh();
    else
#endif
	edit_refresh();

    /* We're exiting from the help screen. */
    free(help_text);
}
Exemple #7
0
/* Our main file browser function.  path is the tilde-expanded path we
 * start browsing from. */
std::string do_browser(std::string path, DIR *dir)
{
	std::string retval;
	bool old_const_update = ISSET(CONST_UPDATE);
	std::string prev_dir;
	/* The directory we were in before backing up to "..". */
	std::string ans;
	/* The last answer the user typed at the statusbar prompt. */
	size_t old_selected;
	/* The selected file we had before the current selected file. */

	curs_set(0);
	blank_statusbar();
	bottombars(MBROWSER);
	wnoutrefresh(bottomwin);

	UNSET(CONST_UPDATE);

change_browser_directory:
	/* We go here after we select a new directory. */

	path = get_full_path(path);

	assert(path.length() > 0 && path.back() == '/');

	/* Get the file list, and set longest and width in the process. */
	browser_init(path, dir);

	/* Sort the file list. */
	std::sort(filelist.begin(), filelist.end(), sort_directories);

	/* If prev_dir isn't empty, select the directory saved in it, and then blow it away. */
	if (prev_dir != "") {
		browser_select_filename(prev_dir);

		prev_dir = "";
		/* Otherwise, select the first file or directory in the list. */
	} else {
		selected = 0;
	}

	old_selected = (size_t)-1;

	titlebar(path);

	Key *kbinput = nullptr;

	while (true) {
		struct stat st;
		size_t fileline = selected / width;
		/* The line number the selected file is on. */
		std::string new_path;
		/* The path we switch to at the "Go to Directory" prompt. */

		if (kbinput) {
			delete kbinput;
			kbinput = nullptr;
		}

		/* Display the file list if we don't have a key, or if the
		 * selected file has changed, and set width in the process. */
		if (old_selected != selected) {
			browser_refresh();
		}

		old_selected = selected;

		// Deal with the keyboard input
		kbinput = new Key(get_kbinput(edit));

		auto func = func_from_key(*kbinput);

		if (func == total_refresh) {
			total_redraw();
		} else if (func == do_help_void) {
			do_help_void();
			curs_set(0);
			/* Search for a filename. */
		} else if (func == do_search) {
			curs_set(1);
			do_filesearch();
			curs_set(0);
			/* Search for another filename. */
		} else if (func == do_research) {
			do_fileresearch();
		} else if (func == do_page_up) {
			if (selected >= (editwinrows + fileline % editwinrows) * width) {
				selected -= (editwinrows + fileline % editwinrows) * width;
			} else {
				selected = 0;
			}
		} else if (func == do_page_down) {
			selected += (editwinrows - fileline % editwinrows) * width;
			if (selected > filelist.size() - 1) {
				selected = filelist.size() - 1;
			}
		} else if (func == do_first_file) {
			selected = 0;
		} else if (func == do_last_file) {
			selected = filelist.size() - 1;
		} else if (func == goto_dir_void) {
			/* Go to a specific directory. */
			curs_set(1);

			std::shared_ptr<Key> key;
			PromptResult i = do_prompt(true,
			              false,
			              MGOTODIR, key, ans.c_str(),
			              NULL,
			              browser_refresh, _("Go To Directory"));

			curs_set(0);
			bottombars(MBROWSER);

			/* If the directory begins with a newline (i.e. an
			 * encoded null), treat it as though it's blank. */
			if (i == PROMPT_ABORTED || i == PROMPT_BLANK_STRING || answer.front() == '\n') {
				/* We canceled.  Indicate that on the statusbar, and
				 * blank out ans, since we're done with it. */
				statusbar(_("Cancelled"));
				ans = "";
				func = nullptr;
				continue;
			} else if (i != PROMPT_ENTER_PRESSED) {
				/* Put back the "Go to Directory" key and save
				 * answer in ans, so that the file list is displayed
				 * again, the prompt is displayed again, and what we
				 * typed before at the prompt is displayed again. */
				ans = answer;
				func = goto_dir_void;
				continue;
			}

			/* We have a directory.  Blank out ans, since we're done with it. */
			ans = "";

			/* Convert newlines to nulls, just before we go to the directory. */
			sunder(answer);

			new_path = real_dir_from_tilde(answer);

			if (new_path == "") {
				new_path = path + answer;
			}

			dir = opendir(new_path);
			if (dir == NULL) {
				/* We can't open this directory for some reason. Complain. */
				statusbar(_("Error reading %s: %s"), answer.c_str(), strerror(errno));
				beep();
				func = nullptr;
				continue;
			}

			/* Start over again with the new path value. */
			path = new_path;
			goto change_browser_directory;
		} else if (func == do_up_void) {
			if (selected >= width) {
				selected -= width;
			}
		} else if (func == do_left) {
			if (selected > 0) {
				selected--;
			}
		} else if (func == do_down_void) {
			if (selected + width <= filelist.size() - 1) {
				selected += width;
			}
		} else if (func == do_right) {
			if (selected < filelist.size() - 1) {
				selected++;
			}
		} else if (func == do_enter_void) {
			/* We can't move up from "/". */
			if (filelist[selected] == "/..") {
				statusbar(_("Can't move up a directory"));
				beep();
				func = nullptr;
				continue;
			}

			if (stat(filelist[selected], &st) == -1) {
				/* We can't open this file for some reason. Complain. */
				statusbar(_("Error reading %s: %s"), filelist[selected].c_str(), strerror(errno));
				beep();
				func = nullptr;
				continue;
			}

			if (!S_ISDIR(st.st_mode)) {
				/* We've successfully opened a file, we're done, so get out. */
				retval = filelist[selected];
				func = nullptr;
				break;
			} else if (tail(filelist[selected]) == "..") {
				/* We've successfully opened the parent directory,
				 * save the current directory in prev_dir, so that
				  * we can easily return to it by hitting Enter. */
				prev_dir = striponedir(filelist[selected]);
			}

			dir = opendir(filelist[selected].c_str());
			if (dir == NULL) {
				/* We can't open this directory for some reason. Complain. */
				statusbar(_("Error reading %s: %s"), filelist[selected].c_str(), strerror(errno));
				beep();
				func = nullptr;
				continue;
			}

			path = filelist[selected];

			/* Start over again with the new path value. */
			goto change_browser_directory;
		} else if (func == do_exit) {
			/* Exit from the file browser. */
			break;
		}
		func = nullptr;
	}
	if (kbinput) {
		delete kbinput;
	}
	titlebar(NULL);
	edit_refresh();
	curs_set(1);
	if (old_const_update) {
		SET(CONST_UPDATE);
	}

	filelist.clear();

	return retval;
}