Browser/src/plugins/volumes.c
2014-01-08 23:57:53 -06:00

523 lines
14 KiB
C

/* $Id$ */
/* Copyright (c) 2011-2014 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/>. */
#include <System.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <libintl.h>
#ifndef __GNU__ /* XXX hurd portability */
# include <sys/mount.h>
# if defined(__linux__) || defined(__CYGWIN__)
# define unmount(a, b) umount(a)
# endif
# ifndef unmount
# define unmount unmount
# endif
#endif
#if defined(__FreeBSD__)
# include <sys/param.h>
# include <sys/ucred.h>
#elif defined(__NetBSD__)
# include <sys/param.h>
# include <sys/types.h>
# include <sys/statvfs.h>
#endif
#include "Browser.h"
#define _(string) gettext(string)
#define N_(string) (string)
/* Volumes */
/* private */
/* types */
enum _VolumesColumn
{
DC_PIXBUF = 0,
DC_NAME,
DC_FILESYSTEM,
DC_FLAGS,
DC_MOUNTPOINT,
DC_FREE,
DC_FREE_DISPLAY,
DC_UPDATED
};
#define DC_LAST DC_UPDATED
#define DC_COUNT (DC_LAST + 1)
typedef enum _VolumesFlag
{
DF_READONLY = 1,
DF_REMOVABLE
} VolumesFlag;
typedef enum _VolumesPixbuf
{
DP_HARDDISK = 0,
DP_CDROM,
DP_REMOVABLE
} VolumesPixbuf;
#define DP_LAST DP_REMOVABLE
#define DP_COUNT (DP_LAST + 1)
typedef struct _BrowserPlugin
{
BrowserPluginHelper * helper;
guint source;
GtkWidget * window;
GtkListStore * store;
GtkWidget * view;
GdkPixbuf * icons[DP_COUNT];
} Volumes;
/* prototypes */
/* plug-in */
static Volumes * _volumes_init(BrowserPluginHelper * helper);
static void _volumes_destroy(Volumes * volumes);
static GtkWidget * _volumes_get_widget(Volumes * volumes);
static void _volumes_refresh(Volumes * volumes, GList * selection);
/* useful */
static void _volumes_list(Volumes * volumes);
/* callbacks */
static gboolean _volumes_on_timeout(gpointer data);
static gboolean _volumes_on_view_button_press(GtkWidget * widget,
GdkEventButton * event, gpointer data);
static gboolean _volumes_on_view_popup_menu(GtkWidget * widget, gpointer data);
static void _volumes_on_view_row_activated(GtkWidget * widget,
GtkTreePath * path, GtkTreeViewColumn * column, gpointer data);
/* public */
/* variables */
BrowserPluginDefinition plugin =
{
N_("Volumes"),
"drive-harddisk",
NULL,
_volumes_init,
_volumes_destroy,
_volumes_get_widget,
_volumes_refresh
};
/* private */
/* functions */
/* plug-in */
/* volumes_init */
static Volumes * _volumes_init(BrowserPluginHelper * helper)
{
Volumes * volumes;
GtkCellRenderer * renderer;
GtkTreeViewColumn * column;
GtkTreeSelection * treesel;
GtkIconTheme * icontheme;
char const * icons[DP_COUNT] = { "drive-harddisk", "drive-cdrom",
"drive-removable-media" };
size_t i;
gint width;
gint height;
if((volumes = object_new(sizeof(*volumes))) == NULL)
return NULL;
volumes->helper = helper;
volumes->source = 0;
volumes->window = gtk_scrolled_window_new(NULL, NULL);
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(volumes->window),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
volumes->store = gtk_list_store_new(DC_COUNT, GDK_TYPE_PIXBUF,
G_TYPE_STRING, G_TYPE_STRING, G_TYPE_UINT,
G_TYPE_STRING, G_TYPE_UINT, G_TYPE_STRING,
G_TYPE_BOOLEAN);
volumes->view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(
volumes->store));
gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(volumes->view), FALSE);
g_signal_connect(volumes->view, "button-press-event", G_CALLBACK(
_volumes_on_view_button_press), volumes);
g_signal_connect(volumes->view, "popup-menu", G_CALLBACK(
_volumes_on_view_popup_menu), volumes);
/* icon */
renderer = gtk_cell_renderer_pixbuf_new();
column = gtk_tree_view_column_new_with_attributes(NULL, renderer,
"pixbuf", DC_PIXBUF, NULL);
gtk_tree_view_append_column(GTK_TREE_VIEW(volumes->view), column);
/* volume name */
renderer = gtk_cell_renderer_text_new();
column = gtk_tree_view_column_new_with_attributes(NULL, renderer,
"text", DC_NAME, NULL);
gtk_tree_view_append_column(GTK_TREE_VIEW(volumes->view), column);
/* free space */
renderer = gtk_cell_renderer_progress_new();
column = gtk_tree_view_column_new_with_attributes(NULL, renderer,
"text", DC_FREE_DISPLAY, "value", DC_FREE, NULL);
gtk_tree_view_append_column(GTK_TREE_VIEW(volumes->view), column);
treesel = gtk_tree_view_get_selection(GTK_TREE_VIEW(volumes->view));
gtk_tree_selection_set_mode(treesel, GTK_SELECTION_SINGLE);
g_signal_connect(volumes->view, "row-activated", G_CALLBACK(
_volumes_on_view_row_activated), volumes);
gtk_container_add(GTK_CONTAINER(volumes->window), volumes->view);
icontheme = gtk_icon_theme_get_default();
gtk_icon_size_lookup(GTK_ICON_SIZE_BUTTON, &width, &height);
for(i = 0; i < DP_COUNT; i++)
volumes->icons[i] = gtk_icon_theme_load_icon(icontheme,
icons[i], width, GTK_ICON_LOOKUP_USE_BUILTIN,
NULL);
gtk_widget_show_all(volumes->window);
return volumes;
}
/* volumes_destroy */
static void _volumes_destroy(Volumes * volumes)
{
size_t i;
if(volumes->source != 0)
g_source_remove(volumes->source);
for(i = 0; i < DP_COUNT; i++)
if(volumes->icons[i] != NULL)
g_object_unref(volumes->icons[i]);
object_delete(volumes);
}
/* volumes_get_widget */
static GtkWidget * _volumes_get_widget(Volumes * volumes)
{
return volumes->window;
}
/* volumes_refresh */
static void _volumes_refresh(Volumes * volumes, GList * selection)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(%p)\n", __func__, (void *)selection);
#endif
if(selection == NULL)
{
/* stop refreshing */
if(volumes->source != 0)
g_source_remove(volumes->source);
volumes->source = 0;
}
else
{
_volumes_list(volumes);
if(volumes->source == 0)
/* refresh every 5 seconds */
volumes->source = g_timeout_add(5000,
_volumes_on_timeout, volumes);
}
}
/* useful */
/* volumes_list */
static void _list_add(Volumes * volumes, char const * name, char const * device,
char const * filesystem, unsigned int flags,
char const * mountpoint, fsblkcnt_t free, fsblkcnt_t total);
static void _list_get_iter(Volumes * volumes, GtkTreeIter * iter,
char const * mountpoint);
static void _list_purge(Volumes * volumes);
static void _list_reset(Volumes * volumes);
static void _volumes_list(Volumes * volumes)
{
#if defined(ST_NOWAIT)
struct statvfs * mnt;
int res;
int i;
#elif defined(MNT_NOWAIT)
struct statfs * mnt;
int res;
int i;
#endif
unsigned int flags = 0;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
#if defined(ST_NOWAIT)
if((res = getmntinfo(&mnt, ST_NOWAIT)) <= 0)
return;
_list_reset(volumes);
for(i = 0; i < res; i++)
{
flags = 0;
flags |= (mnt[i].f_flag & ST_RDONLY) ? DF_READONLY : 0;
_list_add(volumes, (mnt[i].f_flag & ST_ROOTFS)
? _("Root filesystem") : NULL,
mnt[i].f_mntfromname, mnt[i].f_fstypename,
flags, mnt[i].f_mntonname, mnt[i].f_bavail,
mnt[i].f_blocks);
}
#elif defined(MNT_NOWAIT)
if((res = getmntinfo(&mnt, MNT_NOWAIT)) <= 0)
return;
_list_reset(volumes);
for(i = 0; i < res; i++)
{
flags = 0;
flags |= (mnt[i].f_flags & MNT_RDONLY) ? DF_READONLY : 0;
_list_add(volumes, (mnt[i].f_flags & MNT_ROOTFS)
? _("Root filesystem") : NULL,
mnt[i].f_mntfromname, mnt[i].f_fstypename,
flags, mnt[i].f_mntonname, mnt[i].f_bavail,
mnt[i].f_blocks);
}
#else
_list_reset(volumes);
_list_add(volumes, _("Root filesystem"), NULL, NULL, flags, "/", 0, 0);
#endif
_list_purge(volumes);
}
static void _list_add(Volumes * volumes, char const * name, char const * device,
char const * filesystem, unsigned int flags,
char const * mountpoint, fsblkcnt_t free, fsblkcnt_t total)
{
GtkTreeIter iter;
VolumesPixbuf dp = DP_HARDDISK;
char const * ignore[] = { "kernfs", "proc", "procfs", "ptyfs" };
char const * cdrom[] = { "/dev/cd" };
char const * removable[] = { "/dev/sd" };
size_t i;
double fraction = 0.0;
unsigned int f = 0;
char buf[16] = "";
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\", \"%s\", \"%s\", \"%s\", %lu, %lu)\n",
__func__, name, device, filesystem, mountpoint, free,
total);
#endif
for(i = 0; i < sizeof(ignore) / sizeof(*ignore); i++)
if(strcmp(ignore[i], filesystem) == 0)
return;
for(i = 0; i < sizeof(cdrom) / sizeof(*cdrom); i++)
if(strncmp(cdrom[i], device, strlen(cdrom[i])) == 0)
{
flags |= DF_REMOVABLE;
dp = DP_CDROM;
break;
}
for(i = 0; i < sizeof(removable) / sizeof(removable); i++)
if(strncmp(removable[i], device, strlen(removable[i])) == 0)
{
flags |= DF_REMOVABLE;
dp = DP_REMOVABLE;
break;
}
if(name == NULL)
{
if(strcmp(mountpoint, "/") == 0)
name = _("Root filesystem");
else
name = mountpoint;
}
if(dp != DP_CDROM && total != 0 && total >= free)
{
fraction = total - free;
fraction = fraction / total;
f = fraction * 100;
snprintf(buf, sizeof(buf), "%.1lf%%", fraction * 100.0);
}
_list_get_iter(volumes, &iter, mountpoint);
gtk_list_store_set(volumes->store, &iter,
DC_PIXBUF, volumes->icons[dp], DC_NAME, name,
DC_FILESYSTEM, filesystem, DC_FLAGS, flags,
DC_MOUNTPOINT, mountpoint, DC_FREE, f,
DC_FREE_DISPLAY, buf, DC_UPDATED, TRUE, -1);
}
static void _list_get_iter(Volumes * volumes, GtkTreeIter * iter,
char const * mountpoint)
{
GtkTreeModel * model = GTK_TREE_MODEL(volumes->store);
gboolean valid;
gchar * p;
int res;
for(valid = gtk_tree_model_get_iter_first(model, iter); valid == TRUE;
valid = gtk_tree_model_iter_next(model, iter))
{
gtk_tree_model_get(model, iter, DC_MOUNTPOINT, &p, -1);
res = strcmp(mountpoint, p);
g_free(p);
if(res == 0)
return;
}
gtk_list_store_append(volumes->store, iter);
}
static void _list_purge(Volumes * volumes)
{
GtkTreeModel * model = GTK_TREE_MODEL(volumes->store);
GtkTreeIter iter;
gboolean valid;
gboolean updated;
for(valid = gtk_tree_model_get_iter_first(model, &iter); valid == TRUE;)
{
gtk_tree_model_get(model, &iter, DC_UPDATED, &updated, -1);
valid = updated ? gtk_tree_model_iter_next(model, &iter)
: gtk_list_store_remove(volumes->store, &iter);
}
}
static void _list_reset(Volumes * volumes)
{
GtkTreeModel * model = GTK_TREE_MODEL(volumes->store);
GtkTreeIter iter;
gboolean valid;
for(valid = gtk_tree_model_get_iter_first(model, &iter); valid == TRUE;
valid = gtk_tree_model_iter_next(model, &iter))
gtk_list_store_set(volumes->store, &iter, DC_UPDATED, FALSE,
-1);
}
/* callbacks */
/* volumes_on_timeout */
static gboolean _volumes_on_timeout(gpointer data)
{
Volumes * volumes = data;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
_volumes_list(volumes);
return TRUE;
}
/* volumes_on_view_button_press */
static void _volumes_on_eject(GtkWidget * widget, gpointer data);
static void _volumes_on_unmount(GtkWidget * widget, gpointer data);
static gboolean _volumes_on_view_button_press(GtkWidget * widget,
GdkEventButton * event, gpointer data)
{
Volumes * volumes = data;
GtkTreeSelection * treesel;
GtkTreeModel * model;
GtkTreeIter iter;
unsigned int flags;
gchar * mountpoint;
GtkWidget * menu;
if(event->type != GDK_BUTTON_PRESS
|| (event->button != 3 && event->button != 0))
return FALSE;
treesel = gtk_tree_view_get_selection(GTK_TREE_VIEW(widget));
if(gtk_tree_selection_get_selected(treesel, &model, &iter) != TRUE)
return FALSE;
gtk_tree_model_get(model, &iter, DC_MOUNTPOINT, &mountpoint,
DC_FLAGS, &flags, -1);
if(mountpoint == NULL)
return FALSE;
menu = gtk_menu_new();
widget = gtk_image_menu_item_new_with_label(_("Unmount"));
gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(widget),
gtk_image_new_from_icon_name("hdd_unmount",
GTK_ICON_SIZE_MENU));
g_object_set_data(G_OBJECT(widget), "mountpoint", mountpoint);
g_signal_connect(widget, "activate", G_CALLBACK(
_volumes_on_unmount), volumes);
gtk_menu_shell_append(GTK_MENU_SHELL(menu), widget);
if((flags & DF_REMOVABLE) != 0)
{
widget = gtk_image_menu_item_new_with_label(_("Eject"));
gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(widget),
gtk_image_new_from_icon_name("media-eject",
GTK_ICON_SIZE_MENU));
g_object_set_data(G_OBJECT(widget), "mountpoint", mountpoint);
g_signal_connect(widget, "activate", G_CALLBACK(
_volumes_on_eject), volumes);
gtk_menu_shell_append(GTK_MENU_SHELL(menu), widget);
}
gtk_widget_show_all(menu);
gtk_menu_popup(GTK_MENU(menu), NULL, NULL, NULL, NULL, event->button,
event->time);
#if 0 /* XXX memory leak (for g_object_set_data() above) */
g_free(mountpoint);
#endif
return TRUE;
}
static void _volumes_on_eject(GtkWidget * widget, gpointer data)
{
gchar * mountpoint;
mountpoint = g_object_get_data(G_OBJECT(widget), "mountpoint");
/* FIXME really implement */
g_free(mountpoint);
}
static void _volumes_on_unmount(GtkWidget * widget, gpointer data)
{
Volumes * volumes = data;
gchar * mountpoint;
mountpoint = g_object_get_data(G_OBJECT(widget), "mountpoint");
#ifndef unmount
errno = ENOSYS;
#else
if(unmount(mountpoint, 0) != 0)
#endif
volumes->helper->error(volumes->helper->browser,
strerror(errno), 1);
g_free(mountpoint);
}
/* volumes_on_view_popup_menu */
static gboolean _volumes_on_view_popup_menu(GtkWidget * widget, gpointer data)
{
Volumes * volumes = data;
GdkEventButton event;
memset(&event, 0, sizeof(event));
event.type = GDK_BUTTON_PRESS;
event.button = 0;
event.time = gtk_get_current_event_time();
return _volumes_on_view_button_press(widget, &event, volumes);
}
/* volumes_on_view_row_activated */
static void _volumes_on_view_row_activated(GtkWidget * widget,
GtkTreePath * path, GtkTreeViewColumn * column, gpointer data)
{
Volumes * volumes = data;
GtkTreeModel * model;
GtkTreeIter iter;
gchar * location;
model = gtk_tree_view_get_model(GTK_TREE_VIEW(widget));
if(gtk_tree_model_get_iter(model, &iter, path) != TRUE)
return;
gtk_tree_model_get(model, &iter, DC_MOUNTPOINT, &location, -1);
volumes->helper->set_location(volumes->helper->browser, location);
g_free(location);
}