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/*
* dirbrowser.c - newt-based directory browser to get a file name
*
* Copyright (C) 2004 Red Hat, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Author(s): Jeremy Katz <katzj@redhat.com>
*/
#include <newt.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <dirent.h>
#include <errno.h>
#include <string.h>
#include <sys/stat.h>
#ifndef STANDALONE
#include "log.h"
#include "loader.h"
#include "loadermisc.h"
#include "lang.h"
#endif
#ifdef STANDALONE
#define _(x) x
static int simpleStringCmp(const void * a, const void * b) {
const char * first = *((const char **) a);
const char * second = *((const char **) b);
return strcmp(first, second);
}
#endif
#if 0
/* sample filter function */
/* return 1 if a dir, 0 if not */
int getOnlyDirs(char * dir, struct dirent *entry) {
struct stat sb;
char * fn = alloca(strlen(dir) + strlen(entry->d_name) + 2);
sprintf(fn, "%s/%s", dir, entry->d_name);
stat(fn, &sb);
if (!S_ISDIR(sb.st_mode)) {
return 1;
}
return 0;
}
#endif
#define FSTEP 10
static char ** get_file_list(char * dirname,
int (*filterfunc)(char *, struct dirent *)) {
DIR * dir;
struct dirent *entry;
char ** files;
int numfiles = FSTEP, i = 0;
dir = opendir(dirname);
if (dir == NULL) {
fprintf(stderr, "error opening %s: %s", dirname, strerror(errno));
return NULL;
}
files = malloc(numfiles * sizeof(char *));
while ((entry = readdir(dir))) {
if ((strlen(entry->d_name) == 1) && !strncmp(entry->d_name, ".", 1))
continue;
if ((strlen(entry->d_name) == 2) && !strncmp(entry->d_name, "..", 2))
continue;
if (filterfunc && filterfunc(dirname, entry))
continue;
files[i] = strdup(entry->d_name);
if (i++ >= (numfiles - 1)) {
numfiles += FSTEP;
files = realloc(files, numfiles * sizeof(char *));
}
}
files[i] = NULL;
closedir(dir);
qsort(files, i, sizeof(*files), simpleStringCmp);
return files;
}
/* Browse through a directory structure looking for a file.
* Returns the full path to the file.
*
* Parameters:
* title: Title for newt dialog window
* dirname: Directory to use for root of browsing. NOTE: you cannot go
* up above this root.
* filterfunc: An (optional) function to filter out files based on whatever
* criteria you want. Returns 1 if it passes, 0 if not.
* Function should take arguments of the directory name and
* the dirent for the file.
*/
char * newt_select_file(char * title, char * text, char * dirname,
int (*filterfunc)(char *, struct dirent *)) {
char ** files;
char * fn = NULL;
int i, done = 0;
char * topdir = dirname;
char * dir = malloc(PATH_MAX);
char * path = NULL;
newtGrid grid, buttons;
newtComponent f, tb, listbox, ok, cancel;
struct stat sb;
struct newtExitStruct es;
dir = realpath(dirname, dir);
do {
files = get_file_list(dir, filterfunc);
f = newtForm(NULL, NULL, 0);
grid = newtCreateGrid(1, 4);
tb = newtTextboxReflowed(-1, -1, text, 60, 0, 10, 0);
listbox = newtListbox(12, 65, 10,
NEWT_FLAG_SCROLL | NEWT_FLAG_RETURNEXIT);
newtListboxSetWidth(listbox, 55);
buttons = newtButtonBar(_("OK"), &ok, _("Cancel"), &cancel, NULL);
newtGridSetField(grid, 0, 0, NEWT_GRID_COMPONENT, tb,
0, 0, 0, 1, 0, 0);
newtGridSetField(grid, 0, 1, NEWT_GRID_COMPONENT, listbox,
0, 0, 0, 1, 0, 0);
newtGridSetField(grid, 0, 3, NEWT_GRID_SUBGRID, buttons,
0, 0, 0, 0, 0, NEWT_GRID_FLAG_GROWX);
/* if this isn't our topdir, we want to let them go up a dir */
if (strcmp(topdir, dir))
newtListboxAppendEntry(listbox, "../", "..");
for (i = 0; (files[i] != NULL); i++) {
if ((files[i] == NULL) || (strlen(files[i]) == 0)) continue;
path = malloc(strlen(files[i]) + strlen(dir) + 2);
sprintf(path, "%s/%s", dir, files[i]);
stat(path, &sb);
free(path);
if (S_ISDIR(sb.st_mode)) {
char *dir = malloc(strlen(files[i]) + 2);
sprintf(dir, "%s/", files[i]);
newtListboxAppendEntry(listbox, dir, files[i]);
} else {
newtListboxAppendEntry(listbox, files[i], files[i]);
}
}
newtGridWrappedWindow(grid, title);
newtGridAddComponentsToForm(grid, f, 1);
newtFormRun(f, &es);
if (es.reason == NEWT_EXIT_COMPONENT && es.u.co == cancel) {
fn = NULL;
done = -1;
} else {
fn = (char *) newtListboxGetCurrent(listbox);
path = malloc(strlen(fn) + strlen(dir) + 2);
sprintf(path, "%s/%s", dir, fn);
stat(path, &sb);
if (!S_ISDIR(sb.st_mode)) {
fn = path;
done = 1;
} else {
dir = realpath(path, dir);
free(path);
}
}
newtGridFree(grid, 1);
newtFormDestroy(f);
newtPopWindow();
} while (done == 0);
return fn;
}
#ifdef STANDALONE
int main(int argc, char ** argv) {
char * foo;
newtInit();
newtCls();
foo = newt_select_file("Get File Name", "foo, blah blah blah",
"/etc", NULL);
newtFinished();
printf("got %s\n", foo);
return 0;
}
#endif
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