Desktop
/* $Id: desktop.c,v 1.74 2010/05/25 16:19:38 khorben Exp $ */
/* Copyright (c) 2010 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Desktop Browser */
/* 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, version 3 of the License.
*
* 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/>. */
/* FIXME
* - track multiple selection on delete/properties... */
#include <sys/stat.h>
#include <sys/wait.h>
#include <fcntl.h>
#include <unistd.h>
#include <dirent.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <signal.h>
#include <errno.h>
#include <locale.h>
#include <libintl.h>
#include <X11/Xlib.h>
#include <gtk/gtk.h>
#include <gdk/gdkx.h>
#include <X11/Xatom.h>
#include <System.h>
#include "mime.h"
#include "desktop.h"
#include "../config.h"
#define _(string) gettext(string)
#define N_(string) string
#define COMMON_SYMLINK
#include "common.c"
/* constants */
#ifndef PREFIX
# define PREFIX "/usr/local"
#endif
#ifndef DATADIR
# define DATADIR PREFIX "/share"
#endif
#ifndef LOCALEDIR
# define LOCALEDIR DATADIR "/locale"
#endif
/* Desktop */
/* private */
/* types */
typedef struct _DesktopCategory DesktopCategory;
struct _Desktop
{
/* workarea */
gint x;
gint y;
gint width;
gint height;
/* icons */
DesktopIcon ** icon;
size_t icon_cnt;
/* layout */
DesktopLayout layout;
/* common */
char * path;
size_t path_cnt;
DIR * refresh_dir;
time_t refresh_mti;
/* files */
Mime * mime;
char const * home;
GdkPixbuf * file;
GdkPixbuf * folder;
/* applications */
DesktopCategory * category;
/* categories */
GSList * apps;
/* preferences */
GtkWidget * pr_window;
GtkWidget * pr_background;
/* internal */
GdkDisplay * display;
GdkWindow * root;
GdkPixbuf * background;
GtkIconTheme * theme;
GtkWidget * menu;
};
struct _DesktopCategory
{
gboolean show;
char const * category;
char const * name;
char const * icon;
};
/* constants */
#define DESKTOP ".desktop"
#define DESKTOPRC ".desktoprc"
static DesktopCategory _desktop_categories[] =
{
{ FALSE, "Audio;", "Audio", "gnome-mime-audio", },
{ FALSE, "Development;","Development", "applications-development"},
{ FALSE, "Education;", "Education", "applications-science" },
{ FALSE, "Game;", "Games", "applications-games" },
{ FALSE, "Graphics;", "Graphics", "applications-graphics" },
{ FALSE, "AudioVideo;","Multimedia", "applications-multimedia"},
{ FALSE, "Network;", "Network", "applications-internet" },
{ FALSE, "Office;", "Office", "applications-office" },
{ FALSE, "Settings;", "Settings", "gnome-settings" },
{ FALSE, "System;", "System", "applications-system" },
{ FALSE, "Utility;", "Utilities", "applications-utilities"},
{ FALSE, "Video;", "Video", "video" },
{ FALSE, NULL, NULL, NULL, }
};
/* prototypes */
static int _desktop_error(Desktop * desktop, char const * message,
char const * error, int ret);
static int _desktop_serror(Desktop * desktop, char const * message, int ret);
static Config * _desktop_get_config(Desktop * desktop);
static int _desktop_get_workarea(Desktop * desktop);
/* public */
/* functions */
/* desktop_new */
/* callbacks */
static gboolean _new_idle(gpointer data);
static GdkFilterReturn _new_on_root_event(GdkXEvent * xevent, GdkEvent * event,
gpointer data);
Desktop * desktop_new(DesktopLayout layout)
{
Desktop * desktop;
GdkScreen * screen;
gint x;
gint y;
gint depth;
if((desktop = malloc(sizeof(*desktop))) == NULL)
return NULL;
memset(desktop, 0, sizeof(*desktop));
/* workarea */
screen = gdk_screen_get_default();
desktop->display = gdk_screen_get_display(screen);
desktop->root = gdk_screen_get_root_window(screen);
_desktop_get_workarea(desktop);
/* layout */
desktop->theme = gtk_icon_theme_get_default();
if((desktop->home = getenv("HOME")) == NULL
&& (desktop->home = g_get_home_dir()) == NULL)
desktop->home = "/";
desktop_set_layout(desktop, layout);
/* manage root window events */
gdk_window_get_geometry(desktop->root, &x, &y, &desktop->width,
&desktop->height, &depth);
gdk_window_set_events(desktop->root, gdk_window_get_events(
desktop->root) | GDK_BUTTON_PRESS_MASK);
gdk_window_add_filter(desktop->root, _new_on_root_event, desktop);
/* draw background when idle */
g_idle_add(_new_idle, desktop);
return desktop;
}
static gboolean _new_idle(gpointer data)
{
Desktop * desktop = data;
Config * config;
char const * p;
GError * error = NULL;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
if((config = _desktop_get_config(desktop)) == NULL
|| (p = config_get(config, "", "background")) == NULL)
{
if(config != NULL)
config_delete(config);
return FALSE;
}
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s() background=\"%s\"\n", __func__, p);
#endif
g_free(desktop->background);
desktop->background = gdk_pixbuf_new_from_file_at_scale(p,
desktop->width, desktop->height, FALSE, &error);
config_delete(config);
if(desktop->background == NULL)
{
desktop_error(desktop, error->message, 0);
return FALSE;
}
gdk_draw_pixbuf(desktop->root, NULL, desktop->background, 0, 0, 0, 0,
-1, -1, GDK_RGB_DITHER_NORMAL, 0, 0);
gdk_window_set_events(desktop->root, gdk_window_get_events(
desktop->root) | GDK_BUTTON_PRESS_MASK
| GDK_EXPOSURE_MASK);
return FALSE;
}
static GdkFilterReturn _event_button_press(XButtonEvent * xbev,
Desktop * desktop);
static GdkFilterReturn _event_expose(XExposeEvent * xevent, Desktop * desktop);
static GdkFilterReturn _event_configure(XConfigureEvent * xevent,
Desktop * desktop);
static GdkFilterReturn _event_property(XPropertyEvent * xevent,
Desktop * desktop);
static void _on_popup_new_folder(gpointer data);
static void _on_popup_new_text_file(gpointer data);
static void _on_popup_paste(gpointer data);
static void _on_popup_preferences(gpointer data);
static void _on_popup_symlink(gpointer data);
static GdkFilterReturn _new_on_root_event(GdkXEvent * xevent, GdkEvent * event,
gpointer data)
{
Desktop * desktop = data;
XEvent * xev = xevent;
if(xev->type == ButtonPress)
return _event_button_press(xevent, desktop);
else if(xev->type == Expose)
return _event_expose(xevent, desktop);
else if(xev->type == ConfigureNotify)
return _event_configure(xevent, desktop);
else if(xev->type == PropertyNotify)
return _event_property(xevent, desktop);
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s() %d\n", __func__, xev->type);
#endif
return GDK_FILTER_CONTINUE;
}
static GdkFilterReturn _event_button_press(XButtonEvent * xbev,
Desktop * desktop)
{
GtkWidget * menuitem;
GtkWidget * submenu;
GtkWidget * image;
if(xbev->button != 3 || desktop->menu != NULL)
{
if(desktop->menu != NULL)
{
gtk_widget_destroy(desktop->menu);
desktop->menu = NULL;
}
return GDK_FILTER_CONTINUE;
}
desktop->menu = gtk_menu_new();
menuitem = gtk_image_menu_item_new_from_stock(GTK_STOCK_NEW, NULL);
submenu = gtk_menu_new();
gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), submenu);
gtk_menu_shell_append(GTK_MENU_SHELL(desktop->menu), menuitem);
/* submenu for new documents */
menuitem = gtk_image_menu_item_new_with_label(_("Folder"));
image = gtk_image_new_from_icon_name("folder-new", GTK_ICON_SIZE_MENU);
gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(menuitem), image);
g_signal_connect_swapped(G_OBJECT(menuitem), "activate", G_CALLBACK(
_on_popup_new_folder), desktop);
gtk_menu_shell_append(GTK_MENU_SHELL(submenu), menuitem);
menuitem = gtk_separator_menu_item_new();
gtk_menu_shell_append(GTK_MENU_SHELL(submenu), menuitem);
menuitem = gtk_image_menu_item_new_with_label(_("Symbolic link..."));
g_signal_connect_swapped(G_OBJECT(menuitem), "activate", G_CALLBACK(
_on_popup_symlink), desktop);
gtk_menu_shell_append(GTK_MENU_SHELL(submenu), menuitem);
menuitem = gtk_image_menu_item_new_with_label(_("Text file"));
image = gtk_image_new_from_icon_name("stock_new-text",
GTK_ICON_SIZE_MENU);
gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(menuitem), image);
g_signal_connect_swapped(G_OBJECT(menuitem), "activate", G_CALLBACK(
_on_popup_new_text_file), desktop);
gtk_menu_shell_append(GTK_MENU_SHELL(submenu), menuitem);
/* edition */
menuitem = gtk_separator_menu_item_new();
gtk_menu_shell_append(GTK_MENU_SHELL(desktop->menu), menuitem);
menuitem = gtk_image_menu_item_new_from_stock(GTK_STOCK_PASTE, NULL);
g_signal_connect_swapped(G_OBJECT(menuitem), "activate", G_CALLBACK(
_on_popup_paste), desktop);
gtk_menu_shell_append(GTK_MENU_SHELL(desktop->menu), menuitem);
/* preferences */
menuitem = gtk_separator_menu_item_new();
gtk_menu_shell_append(GTK_MENU_SHELL(desktop->menu), menuitem);
menuitem = gtk_image_menu_item_new_from_stock(GTK_STOCK_PREFERENCES,
NULL);
g_signal_connect_swapped(G_OBJECT(menuitem), "activate", G_CALLBACK(
_on_popup_preferences), desktop);
gtk_menu_shell_append(GTK_MENU_SHELL(desktop->menu), menuitem);
gtk_widget_show_all(desktop->menu);
gtk_menu_popup(GTK_MENU(desktop->menu), NULL, NULL, NULL, NULL, 3,
xbev->time);
return GDK_FILTER_CONTINUE;
}
static GdkFilterReturn _event_expose(XExposeEvent * xevent, Desktop * desktop)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s() %d %d, %d %d\n", __func__,
xevent->x, xevent->y, xevent->width, xevent->height);
#endif
gdk_draw_pixbuf(desktop->root, NULL,
desktop->background, xevent->x, xevent->y,
xevent->x, xevent->y, xevent->width, xevent->height,
GDK_RGB_DITHER_NORMAL, 0, 0);
return GDK_FILTER_CONTINUE;
}
static GdkFilterReturn _event_configure(XConfigureEvent * xevent,
Desktop * desktop)
{
desktop->width = xevent->width;
desktop->height = xevent->height;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s() %dx%d\n", __func__, desktop->width,
desktop->height);
#endif
g_idle_add(_new_idle, desktop); /* FIXME run it directly? */
return GDK_FILTER_CONTINUE;
}
static GdkFilterReturn _event_property(XPropertyEvent * xevent,
Desktop * desktop)
{
Atom atom;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
atom = gdk_x11_get_xatom_by_name("_NET_WORKAREA");
if(xevent->atom != atom)
return GDK_FILTER_CONTINUE;
_desktop_get_workarea(desktop);
return GDK_FILTER_CONTINUE;
}
static void _on_popup_new_folder(gpointer data)
{
static char const newfolder[] = "New folder";
Desktop * desktop = data;
String * path;
gtk_widget_destroy(desktop->menu);
desktop->menu = NULL;
if((path = string_new_append(desktop->path, "/", newfolder, NULL))
== NULL)
{
_desktop_serror(desktop, newfolder, 0);
return;
}
if(mkdir(path, 0777) != 0)
desktop_error(desktop, path, 0);
string_delete(path);
}
static void _on_popup_new_text_file(gpointer data)
{
static char const newtext[] = N_("New text file.txt");
Desktop * desktop = data;
String * path;
int fd;
gtk_widget_destroy(desktop->menu);
desktop->menu = NULL;
if((path = string_new_append(desktop->path, "/", _(newtext), NULL))
== NULL)
{
_desktop_serror(desktop, _(newtext), 0);
return;
}
if((fd = creat(path, 0666)) < 0)
desktop_error(desktop, path, 0);
else
close(fd);
string_delete(path);
}
static void _on_popup_paste(gpointer data)
{
Desktop * desktop = data;
/* FIXME implement */
gtk_widget_destroy(desktop->menu);
desktop->menu = NULL;
}
static void _preferences_set(Desktop * desktop);
static gboolean _on_preferences_closex(GtkWidget * widget, GdkEvent * event,
gpointer data);
static void _on_preferences_ok(GtkWidget * widget, gpointer data);
static void _on_preferences_apply(GtkWidget * widget, gpointer data);
static void _on_preferences_cancel(GtkWidget * widget, gpointer data);
static void _on_popup_preferences(gpointer data)
{
Desktop * desktop = data;
GtkWidget * hbox;
GtkWidget * vbox;
GtkWidget * vbox2;
GtkWidget * hbox2;
GtkWidget * widget;
GtkWidget * label;
GtkSizeGroup * group;
PangoFontDescription * desc;
gtk_widget_destroy(desktop->menu);
desktop->menu = NULL;
if(desktop->pr_window != NULL)
{
gtk_widget_show(desktop->pr_window);
return;
}
/* window */
desktop->pr_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_title(GTK_WINDOW(desktop->pr_window),
_("Desktop preferences"));
g_signal_connect(G_OBJECT(desktop->pr_window), "delete-event",
G_CALLBACK(_on_preferences_closex), desktop);
hbox = gtk_hbox_new(FALSE, 0);
vbox = gtk_vbox_new(FALSE, 0);
/* notebook */
desc = pango_font_description_new();
pango_font_description_set_weight(desc, PANGO_WEIGHT_BOLD);
widget = gtk_notebook_new();
vbox2 = gtk_vbox_new(FALSE, 0);
group = gtk_size_group_new(GTK_SIZE_GROUP_HORIZONTAL);
hbox2 = gtk_hbox_new(FALSE, 0);
label = gtk_label_new(_("Background: "));
gtk_widget_modify_font(label, desc);
gtk_size_group_add_widget(group, label);
gtk_box_pack_start(GTK_BOX(hbox2), label, FALSE, TRUE, 0);
desktop->pr_background = gtk_file_chooser_button_new(_("Background"),
GTK_FILE_CHOOSER_ACTION_OPEN);
gtk_box_pack_start(GTK_BOX(hbox2), desktop->pr_background, TRUE, TRUE,
0);
gtk_box_pack_start(GTK_BOX(vbox2), hbox2, FALSE, TRUE, 4);
gtk_notebook_append_page(GTK_NOTEBOOK(widget), vbox2, gtk_label_new(
_("Appearance")));
gtk_box_pack_start(GTK_BOX(vbox), widget, TRUE, TRUE, 4);
/* dialog */
hbox2 = gtk_hbox_new(FALSE, 4);
group = gtk_size_group_new(GTK_SIZE_GROUP_HORIZONTAL);
widget = gtk_button_new_from_stock(GTK_STOCK_OK);
gtk_size_group_add_widget(group, widget);
g_signal_connect(G_OBJECT(widget), "clicked", G_CALLBACK(
_on_preferences_ok), desktop);
gtk_box_pack_end(GTK_BOX(hbox2), widget, FALSE, TRUE, 0);
widget = gtk_button_new_from_stock(GTK_STOCK_APPLY);
gtk_size_group_add_widget(group, widget);
g_signal_connect(G_OBJECT(widget), "clicked", G_CALLBACK(
_on_preferences_apply), desktop);
gtk_box_pack_end(GTK_BOX(hbox2), widget, FALSE, TRUE, 0);
widget = gtk_button_new_from_stock(GTK_STOCK_CANCEL);
gtk_size_group_add_widget(group, widget);
g_signal_connect(G_OBJECT(widget), "clicked", G_CALLBACK(
_on_preferences_cancel), desktop);
gtk_box_pack_end(GTK_BOX(hbox2), widget, FALSE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(vbox), hbox2, FALSE, TRUE, 4);
/* container */
gtk_box_pack_start(GTK_BOX(hbox), vbox, TRUE, TRUE, 4);
gtk_container_add(GTK_CONTAINER(desktop->pr_window), hbox);
_preferences_set(desktop);
gtk_widget_show_all(desktop->pr_window);
}
static gboolean _on_preferences_closex(GtkWidget * widget, GdkEvent * event,
gpointer data)
{
gtk_widget_hide(widget);
_on_preferences_cancel(NULL, data);
return TRUE;
}
static void _on_preferences_ok(GtkWidget * widget, gpointer data)
{
Desktop * desktop = data;
gtk_widget_hide(desktop->pr_window);
_on_preferences_apply(widget, data);
}
static void _on_preferences_apply(GtkWidget * widget, gpointer data)
{
Desktop * desktop = data;
Config * config;
char * p;
if((config = _desktop_get_config(desktop)) == NULL)
return;
p = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(
desktop->pr_background));
config_set(config, "", "background", p);
g_free(p);
/* XXX code duplication */
if((p = string_new_append(desktop->home, "/" DESKTOPRC, NULL)) != NULL)
{
config_save(config, p);
object_delete(p);
}
config_delete(config);
/* XXX not very efficient */
g_idle_add(_new_idle, desktop);
}
static void _on_preferences_cancel(GtkWidget * widget, gpointer data)
{
Desktop * desktop = data;
gtk_widget_hide(desktop->pr_window);
_preferences_set(desktop);
}
static void _preferences_set(Desktop * desktop)
{
Config * config;
String const * p;
if((config = _desktop_get_config(desktop)) == NULL)
{
gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(
desktop->pr_background), NULL);
return;
}
p = config_get(config, "", "background");
gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(
desktop->pr_background), p);
config_delete(config);
}
static void _on_popup_symlink(gpointer data)
{
Desktop * desktop = data;
if(_common_symlink(NULL, desktop->path) != 0)
desktop_error(desktop, "symlink", 0);
}
/* desktop_delete */
void desktop_delete(Desktop * desktop)
{
size_t i;
for(i = 0; i < desktop->icon_cnt; i++)
desktopicon_delete(desktop->icon[i]);
free(desktop->icon);
if(desktop->mime != NULL)
mime_delete(desktop->mime);
free(desktop->path);
free(desktop);
}
/* accessors */
/* desktop_get_drag_data */
int desktop_get_drag_data(Desktop * desktop, GtkSelectionData * seldata)
{
int ret = 0;
size_t i;
size_t len;
char const * path;
unsigned char * p;
seldata->format = 0;
seldata->data = NULL;
seldata->length = 0;
for(i = 0; i < desktop->icon_cnt; i++)
{
if(desktopicon_get_selected(desktop->icon[i]) != TRUE)
continue;
if((path = desktopicon_get_path(desktop->icon[i])) == NULL)
continue;
len = strlen(path + 1);
if((p = realloc(seldata->data, seldata->length + len)) == NULL)
{
ret |= error_set_code(1, "%s", strerror(errno));
continue;
}
seldata->data = p;
memcpy(&p[seldata->length], path, len);
seldata->length += len;
}
return ret;
}
/* desktop_get_file */
GdkPixbuf * desktop_get_file(Desktop * desktop)
{
return desktop->file;
}
/* desktop_get_folder */
GdkPixbuf * desktop_get_folder(Desktop * desktop)
{
return desktop->folder;
}
/* desktop_get_mime */
Mime * desktop_get_mime(Desktop * desktop)
{
return desktop->mime;
}
/* desktop_get_theme */
GtkIconTheme * desktop_get_theme(Desktop * desktop)
{
return desktop->theme;
}
/* desktop_set_layout */
static void _layout_delete(Desktop * desktop);
static int _layout_applications(Desktop * desktop);
static void _layout_applications_open(Desktop * desktop, gpointer data);
static int _layout_categories(Desktop * desktop);
static int _layout_files(Desktop * desktop);
static void _layout_files_add_home(Desktop * desktop);
static int _layout_homescreen(Desktop * desktop);
static void _layout_homescreen_open(Desktop * desktop, gpointer data);
void desktop_set_layout(Desktop * desktop, DesktopLayout layout)
{
_layout_delete(desktop);
desktop->layout = layout;
switch(desktop->layout)
{
case DL_APPLICATIONS:
_layout_applications(desktop);
break;
case DL_CATEGORIES:
_layout_categories(desktop);
break;
case DL_FILES:
_layout_files(desktop);
break;
case DL_HOMESCREEN:
_layout_homescreen(desktop);
break;
}
desktop_refresh(desktop);
}
static void _layout_delete(Desktop * desktop)
{
size_t i;
if(desktop->path != NULL)
free(desktop->path);
desktop->path = NULL;
desktop->path_cnt = 0;
for(i = 0; i < desktop->icon_cnt; i++)
{
desktopicon_set_immutable(desktop->icon[i], FALSE);
desktopicon_set_updated(desktop->icon[i], FALSE);
}
for(i = 0; _desktop_categories[i].name != NULL; i++)
_desktop_categories[i].show = FALSE;
}
static int _layout_applications(Desktop * desktop)
{
const char path[] = DATADIR "/applications";
struct stat st;
DesktopIcon * desktopicon;
GdkPixbuf * icon;
if((desktop->path = strdup(path)) == NULL)
return desktop_error(NULL, strerror(errno), 1);
desktop->path_cnt = sizeof(path);
if(stat(desktop->path, &st) == 0)
if(!S_ISDIR(st.st_mode))
return desktop_error(NULL, strerror(ENOTDIR), 1);
if(desktop->category != NULL)
{
desktopicon = desktopicon_new(desktop, _("Back"), NULL);
desktopicon_set_callback(desktopicon, _layout_applications_open,
NULL);
icon = gtk_icon_theme_load_icon(desktop->theme, "back",
DESKTOPICON_ICON_SIZE, 0, NULL);
if(icon != NULL)
desktopicon_set_icon(desktopicon, icon);
desktop_icon_add(desktop, desktopicon);
}
return 0;
}
static void _layout_applications_open(Desktop * desktop, gpointer data)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
desktop_set_layout(desktop, DL_CATEGORIES);
}
static int _layout_categories(Desktop * desktop)
{
desktop->category = NULL;
return _layout_applications(desktop);
}
static int _layout_files(Desktop * desktop)
{
const char path[] = "/" DESKTOP;
const char * file[] = { "gnome-fs-regular",
#if GTK_CHECK_VERSION(2, 6, 0)
GTK_STOCK_FILE,
#endif
GTK_STOCK_MISSING_IMAGE, NULL };
const char * folder[] = { "gnome-fs-directory",
#if GTK_CHECK_VERSION(2, 6, 0)
GTK_STOCK_DIRECTORY,
#endif
GTK_STOCK_MISSING_IMAGE, NULL };
char const ** p;
struct stat st;
if(desktop->mime == NULL)
desktop->mime = mime_new();
if(desktop->file == NULL)
for(p = file; *p != NULL && desktop->file == NULL; p++)
desktop->file = gtk_icon_theme_load_icon(desktop->theme,
*p, DESKTOPICON_ICON_SIZE, 0, NULL);
if(desktop->folder == NULL)
for(p = folder; *p != NULL && desktop->folder == NULL; p++)
desktop->folder = gtk_icon_theme_load_icon(
desktop->theme, *p,
DESKTOPICON_ICON_SIZE, 0, NULL);
_layout_files_add_home(desktop);
desktop->path_cnt = strlen(desktop->home) + 1 + sizeof(path);
if((desktop->path = malloc(desktop->path_cnt)) == NULL)
return desktop_error(NULL, strerror(ENOTDIR), 1);
snprintf(desktop->path, desktop->path_cnt, "%s/%s", desktop->home,
path);
if(stat(desktop->path, &st) == 0)
{
if(!S_ISDIR(st.st_mode))
return desktop_error(NULL, strerror(ENOTDIR), 1);
}
else if(errno != ENOENT || mkdir(desktop->path, 0777) != 0)
return desktop_error(NULL, strerror(errno), 1);
return 0;
}
static void _layout_files_add_home(Desktop * desktop)
{
DesktopIcon * desktopicon;
GdkPixbuf * icon;
if((desktopicon = desktopicon_new(desktop, _("Home"), desktop->home))
== NULL)
return;
desktopicon_set_first(desktopicon, TRUE);
desktopicon_set_immutable(desktopicon, TRUE);
desktop_icon_add(desktop, desktopicon);
icon = gtk_icon_theme_load_icon(desktop->theme, "gnome-home",
DESKTOPICON_ICON_SIZE, 0, NULL);
if(icon == NULL)
icon = gtk_icon_theme_load_icon(desktop->theme, "gnome-fs-home",
DESKTOPICON_ICON_SIZE, 0, NULL);
if(icon != NULL)
desktopicon_set_icon(desktopicon, icon);
}
static int _layout_homescreen(Desktop * desktop)
{
DesktopIcon * desktopicon;
GdkPixbuf * icon;
if((desktopicon = desktopicon_new(desktop, _("Applications"), NULL))
== NULL)
return desktop_error(NULL, error_get(), 1);
desktopicon_set_callback(desktopicon, _layout_homescreen_open, NULL);
desktopicon_set_immutable(desktopicon, TRUE);
desktop_icon_add(desktop, desktopicon);
icon = gtk_icon_theme_load_icon(desktop->theme, "gnome-applications",
DESKTOPICON_ICON_SIZE, 0, NULL);
if(icon != NULL)
desktopicon_set_icon(desktopicon, icon);
return 0;
}
static void _layout_homescreen_open(Desktop * desktop, gpointer data)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
desktop_set_layout(desktop, DL_CATEGORIES);
}
/* useful */
/* desktop_error */
int desktop_error(Desktop * desktop, char const * message, int ret)
{
return _desktop_error(desktop, message, strerror(errno), ret);
}
static int _error_text(char const * message, int ret)
{
fputs("desktop: ", stderr);
perror(message);
return ret;
}
/* desktop_refresh */
static void _refresh_current(Desktop * desktop);
static int _current_loop(Desktop * desktop);
static int _current_loop_applications(Desktop * desktop);
static gint _categories_apps_compare(gconstpointer a, gconstpointer b);
static int _current_loop_categories(Desktop * desktop);
static int _current_loop_files(Desktop * desktop);
static gboolean _current_idle(gpointer data);
static gboolean _current_done(Desktop * desktop);
static void _done_categories(Desktop * desktop);
static void _done_categories_open(Desktop * desktop, gpointer data);
static int _loop_lookup(Desktop * desktop, char const * name);
static gboolean _done_timeout(gpointer data);
void desktop_refresh(Desktop * desktop)
{
int fd;
struct stat st;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
#ifdef __sun__
if((fd = open(desktop->path, O_RDONLY)) < 0
|| fstat(fd, &st) != 0
|| (desktop->refresh_dir = fdopendir(fd)) == NULL)
{
desktop_error(NULL, desktop->path, 0);
if(fd >= 0)
close(fd);
return;
}
#else
if((desktop->refresh_dir = opendir(desktop->path)) == NULL)
{
desktop_error(NULL, desktop->path, 0);
return;
}
fd = dirfd(desktop->refresh_dir);
if(fstat(fd, &st) != 0)
{
desktop_error(NULL, desktop->path, 0);
closedir(desktop->refresh_dir);
return;
}
#endif
desktop->refresh_mti = st.st_mtime;
_refresh_current(desktop);
}
static void _refresh_current(Desktop * desktop)
{
unsigned int i;
for(i = 0; i < 16 && _current_loop(desktop) == 0; i++);
if(i == 16)
g_idle_add(_current_idle, desktop);
else
_current_done(desktop);
}
static int _current_loop(Desktop * desktop)
{
switch(desktop->layout)
{
case DL_APPLICATIONS:
return _current_loop_applications(desktop);
case DL_CATEGORIES:
return _current_loop_categories(desktop);
case DL_FILES:
return _current_loop_files(desktop);
case DL_HOMESCREEN:
break; /* nothing to do */
}
return 1;
}
static int _current_loop_applications(Desktop * desktop)
{
struct dirent * de;
size_t len;
const char ext[] = ".desktop";
char * path = NULL;
char * p;
Config * config;
char const * q;
DesktopIcon * icon;
while((de = readdir(desktop->refresh_dir)) != NULL)
{
if(de->d_name[0] == '.')
if(de->d_name[1] == '\0' || (de->d_name[1] == '.'
&& de->d_name[2] == '\0'))
continue;
len = strlen(de->d_name);
if(len < sizeof(ext) || strncmp(&de->d_name[len - sizeof(ext)
+ 1], ext, sizeof(ext)) != 0)
continue;
if((p = realloc(path, desktop->path_cnt + len + 1)) == NULL)
{
error_set_print("desktop", 1, "%s: %s", "realloc",
strerror(errno));
continue;
}
path = p;
snprintf(path, desktop->path_cnt + len + 1, "%s/%s",
desktop->path, de->d_name);
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s() \"%s\"\n", __func__, path);
#endif
/* XXX not very elegant */
if(desktop->category != NULL && (config = config_new()) != NULL)
{
if(config_load(config, path) != 0
|| (q = config_get(config,
"Desktop Entry",
"Categories")) == NULL
|| string_find(q,
desktop->category->name)
== NULL)
{
config_delete(config);
continue;
}
config_delete(config);
}
if((icon = desktopicon_new_application(desktop, path)) == NULL)
continue;
desktop_icon_add(desktop, icon);
free(path);
return 0;
}
free(path);
return 1;
}
static int _current_loop_categories(Desktop * desktop)
{
struct dirent * de;
size_t len;
const char ext[] = ".desktop";
const char section[] = "Desktop Entry";
char * path = NULL;
char * p;
Config * config = NULL;
char const * q;
char const * r;
while((de = readdir(desktop->refresh_dir)) != NULL)
{
if(de->d_name[0] == '.')
if(de->d_name[1] == '\0' || (de->d_name[1] == '.'
&& de->d_name[2] == '\0'))
continue;
len = strlen(de->d_name);
if(len < sizeof(ext) || strncmp(&de->d_name[len - sizeof(ext)
+ 1], ext, sizeof(ext)) != 0)
continue;
if((p = realloc(path, desktop->path_cnt + len + 1)) == NULL)
{
error_set_print("desktop", 1, "%s: %s", "realloc",
strerror(errno));
continue;
}
path = p;
snprintf(path, desktop->path_cnt + len + 1, "%s/%s",
desktop->path, de->d_name);
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s() \"%s\"\n", __func__, path);
#endif
if(config == NULL && (config = config_new()) == NULL)
continue; /* XXX report error */
config_reset(config);
if(config_load(config, path) != 0)
{
error_set_print("desktop", 1, "%s: %s", path,
error_get());
continue;
}
q = config_get(config, section, "Name");
r = config_get(config, section, "Exec");
if(q == NULL || r == NULL)
continue;
config_set(config, "", "path", path);
desktop->apps = g_slist_insert_sorted(desktop->apps, config,
_categories_apps_compare);
free(path);
config = NULL;
return 0;
}
free(path);
return 1;
}
static gint _categories_apps_compare(gconstpointer a, gconstpointer b)
{
Config * ca = (Config *)a;
Config * cb = (Config *)b;
char const * cap;
char const * cbp;
const char section[] = "Desktop Entry";
const char variable[] = "Name";
/* these should not fail */
cap = config_get(ca, section, variable);
cbp = config_get(cb, section, variable);
return string_compare(cap, cbp);
}
static int _current_loop_files(Desktop * desktop)
{
struct dirent * de;
String * p;
DesktopIcon * desktopicon;
while((de = readdir(desktop->refresh_dir)) != NULL)
{
if(de->d_name[0] == '.')
if(de->d_name[1] == '\0' || (de->d_name[1] == '.'
&& de->d_name[2] == '\0'))
continue;
if(_loop_lookup(desktop, de->d_name) == 1)
continue;
break;
}
if(de == NULL)
return 1;
if((p = string_new_append(desktop->path, "/", de->d_name, NULL))
== NULL)
return _desktop_serror(NULL, de->d_name, 1);
if((desktopicon = desktopicon_new(desktop, de->d_name, p)) != NULL)
desktop_icon_add(desktop, desktopicon);
string_delete(p);
return 0;
}
static int _loop_lookup(Desktop * desktop, char const * name)
{
size_t i;
char const * p;
for(i = 0; i < desktop->icon_cnt; i++)
{
if(desktopicon_get_updated(desktop->icon[i]) == TRUE)
continue;
if((p = desktopicon_get_path(desktop->icon[i])) == NULL
|| (p = strrchr(p, '/')) == NULL)
continue;
if(strcmp(name, ++p) != 0)
continue;
desktopicon_set_updated(desktop->icon[i], TRUE);
return 1;
}
return 0;
}
static gboolean _current_idle(gpointer data)
{
Desktop * desktop = data;
unsigned int i;
for(i = 0; i < 16 && _current_loop(desktop) == 0; i++);
if(i == 16)
return TRUE;
return _current_done(desktop);
}
static gboolean _current_done(Desktop * desktop)
{
size_t i = 0;
switch(desktop->layout)
{
case DL_CATEGORIES:
_done_categories(desktop);
break;
default:
break;
}
while(i < desktop->icon_cnt)
if(desktopicon_get_immutable(desktop->icon[i]) == TRUE)
i++;
else if(desktopicon_get_updated(desktop->icon[i]) != TRUE)
desktop_icon_remove(desktop, desktop->icon[i]);
else
desktopicon_set_updated(desktop->icon[i++], FALSE);
closedir(desktop->refresh_dir);
g_timeout_add(1000, _done_timeout, desktop);
return FALSE;
}
static void _done_categories(Desktop * desktop)
{
GSList * p;
Config * config;
const char section[] = "Desktop Entry";
char const * q;
size_t i;
DesktopCategory * dc;
char const * path;
DesktopIcon * icon;
for(p = desktop->apps; p != NULL; p = p->next)
{
config = p->data;
path = config_get(config, NULL, "path");
if((q = config_get(config, section, "Categories")) == NULL)
{
icon = desktopicon_new_application(desktop, path);
desktop_icon_add(desktop, icon);
continue;
}
for(i = 0; (dc = &_desktop_categories[i]) != NULL &&
dc->category != NULL
&& string_find(q, dc->category) == NULL; i++);
if(dc->category == NULL)
{
icon = desktopicon_new_application(desktop, path);
desktop_icon_add(desktop, icon);
continue;
}
if(dc->show != FALSE)
continue;
dc->show = TRUE;
icon = desktopicon_new_category(desktop, dc->name, dc->icon);
desktopicon_set_callback(icon, _done_categories_open, dc);
desktop_icon_add(desktop, icon);
}
}
static void _done_categories_open(Desktop * desktop, gpointer data)
{
DesktopCategory * dc = data;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s() \"%s\"\n", __func__, dc->name);
#endif
desktop->category = dc;
desktop_set_layout(desktop, DL_APPLICATIONS);
}
static gboolean _done_timeout(gpointer data)
{
Desktop * desktop = data;
struct stat st;
if(desktop->path == NULL)
return FALSE;
if(stat(desktop->path, &st) != 0)
return desktop_error(NULL, desktop->path, FALSE);
if(st.st_mtime == desktop->refresh_mti)
return TRUE;
desktop_refresh(desktop);
return FALSE;
}
/* desktop_icon_add */
void desktop_icon_add(Desktop * desktop, DesktopIcon * icon)
{
DesktopIcon ** p;
if((p = realloc(desktop->icon, sizeof(*p) * (desktop->icon_cnt + 1)))
== NULL)
{
desktop_error(desktop, "Adding icon", 0);
return;
}
desktop->icon = p;
desktop->icon[desktop->icon_cnt++] = icon;
desktop_icons_align(desktop);
desktopicon_show(icon);
}
/* desktop_icon_remove */
void desktop_icon_remove(Desktop * desktop, DesktopIcon * icon)
{
size_t i;
DesktopIcon ** p;
for(i = 0; i < desktop->icon_cnt; i++)
{
if(desktop->icon[i] != icon)
continue;
desktopicon_delete(icon);
for(desktop->icon_cnt--; i < desktop->icon_cnt; i++)
desktop->icon[i] = desktop->icon[i + 1];
if((p = realloc(desktop->icon, sizeof(*p)
* (desktop->icon_cnt))) != NULL)
desktop->icon = p;
desktop_icons_align(desktop);
break;
}
}
/* desktop_icons_align */
static int _align_compare(const void * a, const void * b);
void desktop_icons_align(Desktop * desktop)
{
size_t i;
int x = desktop->x;
int y = desktop->y;
qsort(desktop->icon, desktop->icon_cnt, sizeof(void*), _align_compare);
for(i = 0; i < desktop->icon_cnt; i++)
{
if(y + DESKTOPICON_MAX_HEIGHT > desktop->height)
{
x += DESKTOPICON_MAX_WIDTH;
y = desktop->y;
}
desktopicon_move(desktop->icon[i], x, y);
y += DESKTOPICON_MAX_HEIGHT;
}
}
static int _align_compare(const void * a, const void * b)
{
DesktopIcon * icona = *(DesktopIcon**)a;
DesktopIcon * iconb = *(DesktopIcon**)b;
gboolean firsta = desktopicon_get_first(icona);
gboolean firstb = desktopicon_get_first(iconb);
if(firsta)
return firstb ? 0 : -1;
else if(firstb)
return 1;
return strcmp(desktopicon_get_name(icona), desktopicon_get_name(iconb));
}
/* desktop_select_all */
void desktop_select_all(Desktop * desktop)
{
size_t i;
for(i = 0; i < desktop->icon_cnt; i++)
desktopicon_set_selected(desktop->icon[i], TRUE);
}
/* desktop_select_above */
void desktop_select_above(Desktop * desktop, DesktopIcon * icon)
/* FIXME icons may be wrapped */
{
size_t i;
for(i = 1; i < desktop->icon_cnt; i++)
if(desktop->icon[i] == icon)
{
desktopicon_set_selected(desktop->icon[i], TRUE);
return;
}
}
/* desktop_select_under */
void desktop_select_under(Desktop * desktop, DesktopIcon * icon)
/* FIXME icons may be wrapped */
{
size_t i;
for(i = 0; i < desktop->icon_cnt; i++)
if(desktop->icon[i] == icon && i + 1 < desktop->icon_cnt)
{
desktopicon_set_selected(desktop->icon[i], TRUE);
return;
}
}
/* desktop_unselect_all */
void desktop_unselect_all(Desktop * desktop)
{
size_t i;
for(i = 0; i < desktop->icon_cnt; i++)
desktopicon_set_selected(desktop->icon[i], FALSE);
}
/* private */
/* functions */
/* desktop_error */
static int _error_text(char const * message, int ret);
static int _desktop_error(Desktop * desktop, char const * message,
char const * error, int ret)
{
GtkWidget * dialog;
if(desktop == NULL)
return _error_text(message, ret);
dialog = gtk_message_dialog_new(NULL, 0, GTK_MESSAGE_ERROR,
GTK_BUTTONS_CLOSE, "%s",
#if GTK_CHECK_VERSION(2, 6, 0)
_("Error"));
gtk_message_dialog_format_secondary_text(GTK_MESSAGE_DIALOG(dialog),
"%s: %s", message,
#endif
error);
gtk_window_set_title(GTK_WINDOW(dialog), _("Error"));
if(ret < 0)
{
g_signal_connect(G_OBJECT(dialog), "response", G_CALLBACK(
gtk_main_quit), NULL);
ret = -ret;
}
else
g_signal_connect(G_OBJECT(dialog), "response", G_CALLBACK(
gtk_widget_destroy), NULL);
gtk_widget_show(dialog);
return ret;
}
/* desktop_serror */
static int _desktop_serror(Desktop * desktop, char const * message, int ret)
{
return _desktop_error(desktop, message, error_get(), ret);
}
/* desktop_get_config */
static Config * _desktop_get_config(Desktop * desktop)
{
Config * config;
String * pathname = NULL;
if((config = config_new()) == NULL
|| (pathname = string_new_append(desktop->home,
"/" DESKTOPRC, NULL)) == NULL
|| config_load(config, pathname) != 0)
{
if(config != NULL)
config_delete(config);
if(pathname != NULL)
object_delete(pathname);
_desktop_serror(desktop, "Could not load preferences", FALSE);
return NULL;
}
return config;
}
/* desktop_get_workarea */
static int _desktop_get_workarea(Desktop * desktop)
{
Atom atom;
Atom type;
int format;
unsigned long cnt;
unsigned long bytes;
unsigned char * p;
unsigned long * u;
atom = gdk_x11_get_xatom_by_name("_NET_WORKAREA");
if(XGetWindowProperty(GDK_DISPLAY_XDISPLAY(desktop->display),
GDK_WINDOW_XWINDOW(desktop->root), atom, 0,
G_MAXLONG, False, XA_CARDINAL, &type, &format,
&cnt, &bytes, &p) != Success)
return 1;
if(cnt >= 4)
{
u = (unsigned long *)p;
desktop->x = u[0];
desktop->y = u[1];
desktop->width = u[2];
desktop->height = u[3];
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s() (%d, %d) %dx%d\n", __func__,
desktop->x, desktop->y, desktop->width,
desktop->height);
#endif
}
XFree(p);
return 0;
}
/* usage */
static int _usage(void)
{
fputs(_("Usage: desktop [-H | -V][-a | -c | -f | -h]\n"
" -H Place icons horizontally\n"
" -V Place icons vertically\n"
" -a Display the applications registered\n"
" -c Sort the applications registered by category\n"
" -f Display contents of the desktop folder (default)\n"
" -h Display the homescreen\n"), stderr);
return 1;
}
/* main */
static void _main_sigchld(int signum);
int main(int argc, char * argv[])
{
int o;
Desktop * desktop;
DesktopLayout layout = DL_FILES;
struct sigaction sa;
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
gtk_init(&argc, &argv);
while((o = getopt(argc, argv, "HVacfh")) != -1)
switch(o)
{
case 'H':
case 'V':
/* FIXME implement */
break;
case 'a':
layout = DL_APPLICATIONS;
break;
case 'c':
layout = DL_CATEGORIES;
break;
case 'f':
layout = DL_FILES;
break;
case 'h':
layout = DL_HOMESCREEN;
break;
default:
return _usage();
}
if(optind < argc)
return _usage();
if((desktop = desktop_new(layout)) == NULL)
{
gtk_main();
return 2;
}
sa.sa_handler = _main_sigchld;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
if(sigaction(SIGCHLD, &sa, NULL) == -1)
desktop_error(desktop, "sigaction", 0);
gtk_main();
desktop_delete(desktop);
return 0;
}
static void _main_sigchld(int signum)
{
wait(NULL);
}