ede/efiler/efiler.cpp

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/*
* $Id$
*
* EFiler - EDE File Manager
* Part of Equinox Desktop Environment (EDE).
* Copyright (c) 2000-2006 EDE Authors.
*
* This program is licenced under terms of the
* GNU General Public Licence version 2 or newer.
* See COPYING for details.
*/
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#include <string.h>
#include <dirent.h>
#include <sys/stat.h>
#include <sys/time.h> // timer
#include <sys/resource.h> // for core
#include <sys/vfs.h> // used for statfs()
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#include <Fl/Fl.H>
#include <Fl/Fl_Double_Window.H>
#include <Fl/Fl_Menu_Bar.H>
#include <Fl/Fl_File_Chooser.H> // for fl_dir_chooser, used in "Open location"
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#include <Fl/filename.H>
#include <Fl/fl_ask.H>
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#include <edelib/Nls.h>
#include <edelib/MimeType.h>
#include <edelib/String.h>
#include <edelib/StrUtil.h>
#include <edelib/Run.h>
#include "EDE_FileView.h" // our file view widget
#include "Util.h" // ex-edelib
#include "fileops.h" // file operations
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#define DEFAULT_ICON "misc-vedran"
Fl_Window* win;
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FileDetailsView* view;
Fl_Menu_Bar* main_menu;
Fl_Box* statusbar;
char current_dir[FL_PATH_MAX];
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bool showhidden;
bool semaphore;
bool dirsfirst;
bool ignorecase;
// constants
const int default_window_width = 600;
const int default_window_height = 400;
const int menubar_height = 30;
const int statusbar_height = 24;
const int statusbar_width = 400;
/*-----------------------------------------------------------------
Filesystem functions
-------------------------------------------------------------------*/
// Read filesystems - adapted from fltk file chooser
char filesystems[50][PATH_MAX]; // must be global
int get_filesystems() {
FILE *mtab; // /etc/mtab or /etc/mnttab file
// Results are cached in a static array
static int fs_number=0;
// On first access read filesystems
if (fs_number == 0) {
mtab = fopen("/etc/mnttab", "r"); // Fairly standard
if (mtab == NULL)
mtab = fopen("/etc/mtab", "r"); // More standard
if (mtab == NULL)
mtab = fopen("/etc/fstab", "r"); // Otherwise fallback to full list
if (mtab == NULL)
mtab = fopen("/etc/vfstab", "r"); // Alternate full list file
char line[PATH_MAX]; // Input line
char device[PATH_MAX], mountpoint[PATH_MAX], fs[PATH_MAX];
while (mtab!= NULL && fgets(line, sizeof(line), mtab) != NULL) {
if (line[0] == '#' || line[0] == '\n')
continue;
if (sscanf(line, "%s%s%s", device, mountpoint, fs) != 3)
continue;
strcpy(filesystems[fs_number],mountpoint);
fs_number++;
}
fclose (mtab);
if (fs_number == 0) return 0; // error reading mtab/fstab
}
return fs_number;
}
// Get mount point of filesystem for given file
const char* find_fs_for(const char* file) {
int fs_number = get_filesystems();
if (fs_number==0) return 0; // error reading mtab/fstab
// Find filesystem for file (largest mount point match)
char *max;
int maxlen = 0;
for (int i=0; i<fs_number; i++) {
int mylen = strlen(filesystems[i]);
if ((strncmp(file,filesystems[i],mylen)==0) && (mylen>maxlen)) {
maxlen=mylen;
max = (char*)filesystems[i];
}
}
if (maxlen == 0) return 0; // doesn't match any fs? there should always be root
return max;
}
// Tests if two files are on the same filesystem
bool is_on_same_fs(const char* file1, const char* file2) {
const char* fs1 = find_fs_for(file1);
// See if file2 matches the same filesystem
return (strncmp(file1,fs1,strlen(fs1))==0);
}
/*-----------------------------------------------------------------
"Simple opener" - keep a list of openers in text file
This is just a temporary fix so that efiler works atm.
-------------------------------------------------------------------*/
// These variables are global to save time on construction/destruction
edelib::MimeType mime_resolver;
struct stat stat_buffer;
struct sopeners {
char* type;
char* opener;
sopeners* next;
} *openers=0;
char *simpleopener(const char* mimetype) {
sopeners* p;
if (!openers) {
FILE* fp = fopen("openers.txt","r");
if (!fp) { fl_alert(_("File openers.txt not found")); return 0; }
char buf[FL_PATH_MAX*2];
while (!feof(fp)) {
fgets((char*)&buf, FL_PATH_MAX*2, fp);
if (buf[0]=='\0' || buf[1]=='\0' || buf[0]=='#') continue;
buf[strlen(buf)-1]='\0';
char *tmp = strstr(buf, "||");
if (!tmp) continue; // malformatted opener
*tmp = '\0';
sopeners* q = new sopeners;
q->type=strdup(buf);
q->opener=strdup(tmp+2);
//fprintf (stderr, "Found type: '%s' opener: '%s'\n",q->type,q->opener);
q->next=0;
if (!openers) openers=q;
else p->next = q;
p=q;
}
fclose(fp);
}
p=openers;
char *result=0; int topscore=0;
while (p != 0) {
int score=strlen(p->type);
if (strncmp(p->type,mimetype,score)==0 && score>topscore) {
topscore=score;
result=p->opener;
}
p=p->next;
}
return result;
}
/*-----------------------------------------------------------------
LoadDir()
-------------------------------------------------------------------*/
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// modification of versionsort which ignores case
int myversionsort(const void *a, const void *b) {
struct dirent** ka = (struct dirent**)a;
struct dirent** kb = (struct dirent**)b;
char* ma = strdup((*ka)->d_name);
char* mb = strdup((*kb)->d_name);
edelib::str_tolower((unsigned char*)ma); edelib::str_tolower((unsigned char*)mb);
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int k = strverscmp(ma,mb);
free(ma); free(mb);
return k;
}
void loaddir(const char *path) {
if (semaphore) return; // Prevent loaddir to interrupt previous loaddir - that can result in crash
semaphore=true;
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char old_dir[FL_PATH_MAX];
strncpy(old_dir,current_dir,strlen(current_dir)); // Restore olddir in case of error
// Set current_dir
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if (fl_filename_isdir(path)) {
if (path[0] == '~') // Expand tilde
snprintf(current_dir,PATH_MAX,"%s/%s",getenv("HOME"),path+1);
else
if (path!=current_dir) strcpy(current_dir,path);
} else
strcpy(current_dir,getenv("HOME"));
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// Trailing slash should always be there
if (current_dir[strlen(current_dir)-1] != '/') strcat(current_dir,"/");
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// Compact dotdot (..)
if (char *tmp = strstr(current_dir,"/../")) {
char *tmp2 = tmp+4;
tmp--;
while (tmp != current_dir && *tmp != '/') tmp--;
tmp++;
while (*tmp2 != '\0') *tmp++ = *tmp2++;
*tmp='\0';
}
fprintf (stderr, "loaddir(%s) = (%s)\n",path,current_dir);
// Update directory tree
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// dirtree->set_current(current_dir);
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// variables used later
int size=0;
dirent **files;
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// List all files in directory
if (ignorecase)
size = scandir(current_dir, &files, 0, myversionsort);
else
size = scandir(current_dir, &files, 0, versionsort);
if (size<1) { // there should always be . and ..
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fl_alert(_("Permission denied!"));
strncpy(current_dir,old_dir,strlen(current_dir));
semaphore=false;
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return;
}
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// set window label
// unlike fltk2, labels can be pointers to static char
win->label(tsprintf(_("%s - File manager"), current_dir));
statusbar->label(tsprintf(_("Scanning directory %s..."), current_dir));
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view->clear();
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FileItem **item_list = new FileItem*[size];
int fsize=0;
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for (int i=0; i<size; i++) {
char *n = files[i]->d_name; //shortcut
if (i>0) free(files[i-1]); // see scandir(3)
// don't show . (current directory)
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if (strcmp(n,".")==0) continue;
// hide files with dot except .. (up directory)
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if (!showhidden && (n[0] == '.') && (strcmp(n,"..")!=0)) continue;
// hide files ending with tilde (backup) - NOTE
if (!showhidden && (n[strlen(n)-1] == '~')) continue;
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char fullpath[FL_PATH_MAX];
snprintf (fullpath,FL_PATH_MAX-1,"%s%s",current_dir,n);
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if (stat(fullpath,&stat_buffer)) continue; // happens when user has traverse but not read privilege
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FileItem *item = new FileItem;
item->name = n;
item->realpath = fullpath;
item->date = nice_time(stat_buffer.st_mtime);
item->permissions = ""; // todo
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if (strcmp(n,"..")==0) {
item->icon = "undo";
item->description = "Go up";
item->size = "";
} else if (S_ISDIR(stat_buffer.st_mode)) { // directory
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item->icon = "folder";
item->description = "Directory";
// item->name += "/";
item->size = "";
} else {
item->icon = "unknown";
item->description = "Unknown";
item->size = nice_size(stat_buffer.st_size);
}
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item_list[fsize++] = item;
}
free(files[size-1]); free(files); // see scandir(3)
// Populate view
for (int i=0; i<fsize; i++)
if (item_list[i]->description == "Go up")
view->add(item_list[i]);
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if (dirsfirst) {
for (int i=0; i<fsize; i++)
if (item_list[i]->description == "Directory")
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view->add(item_list[i]);
for (int i=0; i<fsize; i++)
if (item_list[i]->description != "Directory" && item_list[i]->description != "Go up")
view->add(item_list[i]);
} else {
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for (int i=0; i<fsize; i++)
if (item_list[i]->description != "Go up")
view->add(item_list[i]);
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}
view->redraw();
Fl::check();
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// Update mime types - can be slow...
for (int i=0; i<fsize; i++) {
if (item_list[i]->description != "Directory" && item_list[i]->description != "Go up") {
mime_resolver.set(item_list[i]->realpath.c_str());
edelib::String desc,icon;
desc = mime_resolver.comment();
// First letter of desc should be upper case:
if (desc.length()>0 && desc[0]>='a' && desc[0]<='z') desc[0] = desc[0]-'a'+'A';
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icon = mime_resolver.icon_name();
if (desc!="" || icon!="") {
if (desc != "") item_list[i]->description = desc;
if (icon != "") item_list[i]->icon = icon;
fprintf (stderr, "ICON: %s !!!!!\n", icon.c_str());
view->update(item_list[i]);
}
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Fl::check();
}
}
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// Cleanup
for (int i=0; i<fsize; i++) delete item_list[i];
delete[] item_list;
semaphore=false;
// Get partition size and free space
// TODO Attempt to cache the results in a meaningful way
static struct statfs statfs_buffer;
if (statfs(current_dir, &statfs_buffer)==0) {
double totalsize = double(statfs_buffer.f_bsize) * statfs_buffer.f_blocks;
double freesize = double(statfs_buffer.f_bsize) * statfs_buffer.f_bavail; // This is what df returns
// f_bfree is size available to root
double percent = double(statfs_buffer.f_blocks-statfs_buffer.f_bavail)/statfs_buffer.f_blocks*100;
char *tmp = strdup(nice_size(totalsize)); // nice_size() operates on a static char buffer, we can't use two calls at the same time
statusbar->label(tsprintf(_("Filesystem %s, Size %s, Free %s (%4.1f%% used)"), find_fs_for(current_dir), tmp, nice_size(freesize), percent));
free(tmp);
} else
statusbar->label(_("Error reading filesystem information!"));
}
/*-----------------------------------------------------------------
Main menu callbacks
-------------------------------------------------------------------*/
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// Open callback
void open_cb(Fl_Widget*w, void*data) {
fprintf (stderr,"cb\n");
if (Fl::event_clicks() || Fl::event_key() == FL_Enter || w==main_menu) {
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fprintf (stderr,"enter\n");
//if (Fl::event_clicks()) fprintf(stderr, "clicks\n");
//if (Fl::event_key()==FL_Enter) fprintf(stderr, "ekey\n");
static timeval tm = {0,0};
timeval newtm;
gettimeofday(&newtm,0);
if (newtm.tv_sec - tm.tv_sec < 1 || (newtm.tv_sec-tm.tv_sec==1 && newtm.tv_usec<tm.tv_usec)) return; // no calling within 1 second
tm=newtm;
if (view->value()==0) return; // This can happen while efiler is loading
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char* path = (char*)view->data(view->value());
fprintf(stderr, "Path: %s (ev %d)\n",path,Fl::event());
if (stat(path,&stat_buffer)) return; // error
if (S_ISDIR(stat_buffer.st_mode)) { // directory
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loaddir(path);
return;
}
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// Call opener
mime_resolver.set(path);
char* opener = simpleopener(mime_resolver.type().c_str());
// dump core
struct rlimit *rlim = (struct rlimit*)malloc(sizeof(struct rlimit));
getrlimit (RLIMIT_CORE, rlim);
rlim_t old_rlimit = rlim->rlim_cur; // keep previous rlimit
rlim->rlim_cur = RLIM_INFINITY;
setrlimit (RLIMIT_CORE, rlim);
const char *o2 = tsprintf(opener,path);
fprintf (stderr, "run_program: %s\n", o2);
// construct filename for the message
char* filename = strdup(view->text(view->value()));
if (char*k = strchr(filename, view->column_char())) *k='\0';
if (opener) {
int k=edelib::run_program(o2,false); fprintf(stderr, "retval: %d\n", k);
} else
statusbar->label(tsprintf(_("No program to open %s!"), filename));
free(filename);
rlim->rlim_cur = old_rlimit;
setrlimit (RLIMIT_CORE, rlim);
free(rlim);
}
} // open_cb
void location_cb(Fl_Widget*, void*) {
const char *dir = fl_dir_chooser(_("Choose location"),current_dir);
if (dir) loaddir(dir);
}
void new_cb(Fl_Widget*, void*) { edelib::run_program(tsprintf("efiler %s",current_dir),false); }
void quit_cb(Fl_Widget*, void*) {exit(0);}
void cut_cb(Fl_Widget*, void*) { do_cut_copy(false); }
void copy_cb(Fl_Widget*, void*) { do_cut_copy(true); }
void paste_cb(Fl_Widget*, void*) { do_paste(); }
void delete_cb(Fl_Widget*, void*) { do_delete(); }
void showhidden_cb(Fl_Widget*, void*) { showhidden=!showhidden; loaddir(current_dir); }
void refresh_cb(Fl_Widget*, void*) {
loaddir(current_dir);
// TODO: reload directory tree as well-
}
void case_cb(Fl_Widget*, void*) { ignorecase=!ignorecase; loaddir(current_dir); }
void dirsfirst_cb(Fl_Widget*, void*) { dirsfirst=!dirsfirst; loaddir(current_dir); }
// dummy callbacks
void ow_cb(Fl_Widget*, void*) { fprintf(stderr, "callback\n"); } // make a list of openers
void pref_cb(Fl_Widget*, void*) { fprintf(stderr, "callback\n"); }
void iconsview_cb(Fl_Widget*, void*) { fprintf(stderr, "callback\n"); }
void listview_cb(Fl_Widget*, void*) { fprintf(stderr, "callback\n"); }
void showtree_cb(Fl_Widget*, void*) { fprintf(stderr, "callback\n"); }
void about_cb(Fl_Widget*, void*) { fprintf(stderr, "callback\n"); }
void aboutede_cb(Fl_Widget*, void*) { fprintf(stderr, "callback\n"); }
/*-----------------------------------------------------------------
GUI design
-------------------------------------------------------------------*/
// Main window menu - definition
Fl_Menu_Item main_menu_definition[] = {
{_("&File"), 0, 0, 0, FL_SUBMENU},
{_("&Open"), FL_CTRL+'o', open_cb},
{_("Open &with..."), 0, ow_cb, 0,FL_MENU_DIVIDER},
{_("Open &location"), 0, location_cb, 0,FL_MENU_DIVIDER},
{_("&New window"), FL_CTRL+'n', new_cb, 0,FL_MENU_DIVIDER},
{_("&Quit"), FL_CTRL+'q', quit_cb},
{0},
{_("&Edit"), 0, 0, 0, FL_SUBMENU},
{_("&Cut"), FL_CTRL+'x', cut_cb},
{_("C&opy"), FL_CTRL+'c', copy_cb},
{_("&Paste"), FL_CTRL+'v', paste_cb},
{_("&Rename"), FL_F+2, 0}, // no callback - view handles this
{_("&Delete"), FL_Delete, delete_cb, 0, FL_MENU_DIVIDER},
{_("Pre&ferences"), FL_CTRL+'p', pref_cb},
{0},
{_("&View"), 0, 0, 0, FL_SUBMENU},
{_("&Icons"), FL_F+8, iconsview_cb, 0, FL_MENU_RADIO}, // coming soon
{_("&Detailed list"), FL_F+8, listview_cb, 0, FL_MENU_RADIO|FL_MENU_VALUE|FL_MENU_DIVIDER},
{_("&Show hidden"), 0, showhidden_cb, 0, FL_MENU_TOGGLE},
{_("Directory &tree"), FL_F+9, showtree_cb, 0, FL_MENU_TOGGLE|FL_MENU_DIVIDER}, // coming soon
{_("&Refresh"), FL_F+5, refresh_cb},
{_("S&ort"), 0, 0, 0, FL_SUBMENU},
{_("&Case sensitive"), 0, case_cb, 0, FL_MENU_TOGGLE},
{_("D&irectories first"), 0, dirsfirst_cb, 0, FL_MENU_TOGGLE|FL_MENU_VALUE},
{0},
{0},
{_("&Help"), 0, 0, 0, FL_SUBMENU},
{_("&About File Manager"), 0, about_cb}, // coming soon
{_("&About EDE"), 0, aboutede_cb}, // coming soon
{0},
{0}
};
// Main program
int main (int argc, char **argv) {
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fl_register_images();
edelib::IconTheme::init("crystalsvg");
win = new Fl_Double_Window(default_window_width, default_window_height);
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// win->color(FL_WHITE);
win->begin();
main_menu = new Fl_Menu_Bar(0,0,default_window_width,menubar_height);
main_menu->menu(main_menu_definition);
main_menu->textsize(12); // hack for label size
view = new FileDetailsView(0, menubar_height, default_window_width, default_window_height-menubar_height-statusbar_height, 0);
view->callback(open_cb);
// callback for renaming
view->rename_callback(do_rename);
view->dnd_callback(dnd_cb);
Fl_Group *sbgroup = new Fl_Group(0, default_window_height-statusbar_height, default_window_width, statusbar_height);
statusbar = new Fl_Box(2, default_window_height-statusbar_height+2, statusbar_width, statusbar_height-4);
statusbar->box(FL_DOWN_BOX);
statusbar->labelsize(12); // hack for label size
statusbar->align(FL_ALIGN_LEFT|FL_ALIGN_INSIDE|FL_ALIGN_CLIP);
statusbar->label(_("Ready."));
Fl_Box* filler = new Fl_Box(statusbar_width+2, default_window_height-statusbar_height+2, default_window_width-statusbar_width, statusbar_height-4);
sbgroup->end();
sbgroup->resizable(filler);
win->end();
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win->resizable(view);
// win->icon(Icon::get("folder",Icon::TINY));
win->show(argc,argv);
// TODO remember previous configuration
showhidden=false; dirsfirst=true; ignorecase=true; semaphore=false;
if (argc==1) // No params
loaddir ("");
else
loaddir (argv[1]);
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return Fl::run();
}