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authorPerberos <[email protected]>2011-12-01 22:24:23 -0300
committerPerberos <[email protected]>2011-12-01 22:24:23 -0300
commit0e004c696b0e68b2cff37a4c3315b022a35eaf43 (patch)
tree43261e815529cb9518ed7be37af13b846af8b26b /libcaja-private/caja-emblem-utils.c
downloadcaja-0e004c696b0e68b2cff37a4c3315b022a35eaf43.tar.bz2
caja-0e004c696b0e68b2cff37a4c3315b022a35eaf43.tar.xz
moving from https://github.com/perberos/mate-desktop-environment
Diffstat (limited to 'libcaja-private/caja-emblem-utils.c')
-rw-r--r--libcaja-private/caja-emblem-utils.c511
1 files changed, 511 insertions, 0 deletions
diff --git a/libcaja-private/caja-emblem-utils.c b/libcaja-private/caja-emblem-utils.c
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+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*-
+
+ caja-emblem-utils.c: Utilities for handling emblems
+
+ Copyright (C) 2002 Red Hat, Inc.
+
+ 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, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+
+ Author: Alexander Larsson <[email protected]>
+*/
+
+#include <config.h>
+
+#include <sys/types.h>
+#include <utime.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <sys/stat.h>
+
+#include <glib.h>
+#include <glib/gstdio.h>
+#include <glib/gi18n.h>
+#include <gtk/gtk.h>
+
+#include <eel/eel-glib-extensions.h>
+#include <eel/eel-gdk-pixbuf-extensions.h>
+#include <eel/eel-stock-dialogs.h>
+
+#include "caja-file.h"
+#include "caja-emblem-utils.h"
+
+#define EMBLEM_NAME_TRASH "emblem-trash"
+#define EMBLEM_NAME_SYMLINK "emblem-symbolic-link"
+#define EMBLEM_NAME_NOREAD "emblem-noread"
+#define EMBLEM_NAME_NOWRITE "emblem-nowrite"
+#define EMBLEM_NAME_NOTE "emblem-note"
+#define EMBLEM_NAME_SHARED "emblem-shared"
+
+GList *
+caja_emblem_list_available (void)
+{
+ GtkIconTheme *icon_theme;
+ GList *list;
+
+ icon_theme = gtk_icon_theme_get_default ();
+ list = gtk_icon_theme_list_icons (icon_theme, "Emblems");
+ return list;
+}
+
+void
+caja_emblem_refresh_list (void)
+{
+ GtkIconTheme *icon_theme;
+
+ icon_theme = gtk_icon_theme_get_default ();
+ gtk_icon_theme_rescan_if_needed (icon_theme);
+}
+
+char *
+caja_emblem_get_icon_name_from_keyword (const char *keyword)
+{
+ return g_strconcat ("emblem-", keyword, NULL);
+}
+
+
+/* check for reserved keywords */
+static gboolean
+is_reserved_keyword (const char *keyword)
+{
+ GList *available;
+ char *icon_name;
+ gboolean result;
+
+ g_assert (keyword != NULL);
+
+ /* check intrinsic emblems */
+ if (g_ascii_strcasecmp (keyword, CAJA_FILE_EMBLEM_NAME_TRASH) == 0)
+ {
+ return TRUE;
+ }
+ if (g_ascii_strcasecmp (keyword, CAJA_FILE_EMBLEM_NAME_CANT_READ) == 0)
+ {
+ return TRUE;
+ }
+ if (g_ascii_strcasecmp (keyword, CAJA_FILE_EMBLEM_NAME_CANT_WRITE) == 0)
+ {
+ return TRUE;
+ }
+ if (g_ascii_strcasecmp (keyword, CAJA_FILE_EMBLEM_NAME_SYMBOLIC_LINK) == 0)
+ {
+ return TRUE;
+ }
+ if (g_ascii_strcasecmp (keyword, CAJA_FILE_EMBLEM_NAME_NOTE) == 0)
+ {
+ return TRUE;
+ }
+ if (g_ascii_strcasecmp (keyword, CAJA_FILE_EMBLEM_NAME_SHARED) == 0)
+ {
+ return TRUE;
+ }
+
+ available = caja_emblem_list_available ();
+ icon_name = caja_emblem_get_icon_name_from_keyword (keyword);
+ /* see if the keyword already exists */
+ result = g_list_find_custom (available,
+ (char *) icon_name,
+ (GCompareFunc) g_ascii_strcasecmp) != NULL;
+ eel_g_list_free_deep (available);
+ g_free (icon_name);
+ return result;
+}
+
+gboolean
+caja_emblem_should_show_in_list (const char *emblem)
+{
+ if (strcmp (emblem, EMBLEM_NAME_TRASH) == 0)
+ {
+ return FALSE;
+ }
+ if (strcmp (emblem, EMBLEM_NAME_SYMLINK) == 0)
+ {
+ return FALSE;
+ }
+ if (strcmp (emblem, EMBLEM_NAME_NOREAD) == 0)
+ {
+ return FALSE;
+ }
+ if (strcmp (emblem, EMBLEM_NAME_NOWRITE) == 0)
+ {
+ return FALSE;
+ }
+ if (strcmp (emblem, EMBLEM_NAME_NOTE) == 0)
+ {
+ return FALSE;
+ }
+ if (strcmp (emblem, EMBLEM_NAME_SHARED) == 0)
+ {
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+char *
+caja_emblem_get_keyword_from_icon_name (const char *emblem)
+{
+ g_return_val_if_fail (emblem != NULL, NULL);
+
+ if (g_str_has_prefix (emblem, "emblem-"))
+ {
+ return g_strdup (&emblem[7]);
+ }
+ else
+ {
+ return g_strdup (emblem);
+ }
+}
+
+GdkPixbuf *
+caja_emblem_load_pixbuf_for_emblem (GFile *emblem)
+{
+ GInputStream *stream;
+ GdkPixbuf *pixbuf;
+ GdkPixbuf *scaled;
+
+ stream = (GInputStream *) g_file_read (emblem, NULL, NULL);
+ if (!stream)
+ {
+ return NULL;
+ }
+
+ pixbuf = eel_gdk_pixbuf_load_from_stream (stream);
+ g_return_val_if_fail (pixbuf != NULL, NULL);
+
+ scaled = eel_gdk_pixbuf_scale_down_to_fit (pixbuf,
+ CAJA_ICON_SIZE_STANDARD,
+ CAJA_ICON_SIZE_STANDARD);
+
+ g_object_unref (pixbuf);
+ g_object_unref (stream);
+
+ return scaled;
+}
+
+/* utility to make sure the passed-in keyword only contains alphanumeric characters */
+static gboolean
+emblem_keyword_valid (const char *keyword)
+{
+ const char *p;
+ gunichar c;
+
+ for (p = keyword; *p; p = g_utf8_next_char (p))
+ {
+ c = g_utf8_get_char (p);
+
+ if (!g_unichar_isalnum (c) &&
+ !g_unichar_isspace (c))
+ {
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
+
+gboolean
+caja_emblem_verify_keyword (GtkWindow *parent_window,
+ const char *keyword,
+ const char *display_name)
+{
+ if (keyword == NULL || strlen (keyword) == 0)
+ {
+ eel_show_error_dialog (_("The emblem cannot be installed."),
+ _("Sorry, but you must specify a non-blank keyword for the new emblem."),
+ GTK_WINDOW (parent_window));
+ return FALSE;
+ }
+ else if (!emblem_keyword_valid (keyword))
+ {
+ eel_show_error_dialog (_("The emblem cannot be installed."),
+ _("Sorry, but emblem keywords can only contain letters, spaces and numbers."),
+ GTK_WINDOW (parent_window));
+ return FALSE;
+ }
+ else if (is_reserved_keyword (keyword))
+ {
+ char *error_string;
+
+ /* this really should never happen, as a user has no idea
+ * what a keyword is, and people should be passing a unique
+ * keyword to us anyway
+ */
+ error_string = g_strdup_printf (_("Sorry, but there is already an emblem named \"%s\"."), display_name);
+ eel_show_error_dialog (_("Please choose a different emblem name."), error_string,
+ GTK_WINDOW (parent_window));
+ g_free (error_string);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+void
+caja_emblem_install_custom_emblem (GdkPixbuf *pixbuf,
+ const char *keyword,
+ const char *display_name,
+ GtkWindow *parent_window)
+{
+ char *basename, *path, *dir, *stat_dir;
+ struct stat stat_buf;
+ struct utimbuf ubuf;
+
+ g_return_if_fail (pixbuf != NULL);
+
+ if (!caja_emblem_verify_keyword (parent_window, keyword, display_name))
+ {
+ return;
+ }
+
+ dir = g_build_filename (g_get_home_dir (),
+ ".icons", "hicolor", "48x48", "emblems",
+ NULL);
+ stat_dir = g_build_filename (g_get_home_dir (),
+ ".icons", "hicolor",
+ NULL);
+
+ if (g_mkdir_with_parents (dir, 0755) != 0)
+ {
+ eel_show_error_dialog (_("The emblem cannot be installed."),
+ _("Sorry, unable to save custom emblem."),
+ GTK_WINDOW (parent_window));
+ g_free (dir);
+ g_free (stat_dir);
+ return;
+ }
+
+ basename = g_strdup_printf ("emblem-%s.png", keyword);
+ path = g_build_filename (dir, basename, NULL);
+ g_free (basename);
+
+ /* save the image */
+ if (eel_gdk_pixbuf_save_to_file (pixbuf, path) != TRUE)
+ {
+ eel_show_error_dialog (_("The emblem cannot be installed."),
+ _("Sorry, unable to save custom emblem."),
+ GTK_WINDOW (parent_window));
+ g_free (dir);
+ g_free (stat_dir);
+ g_free (path);
+ return;
+ }
+
+ g_free (path);
+
+ if (display_name != NULL)
+ {
+ char *contents;
+
+ basename = g_strdup_printf ("emblem-%s.icon", keyword);
+ path = g_build_filename (dir, basename, NULL);
+ g_free (basename);
+
+ contents = g_strdup_printf ("\n[Icon Data]\n\nDisplayName=%s\n",
+ display_name);
+
+ if (!g_file_set_contents (path, contents, strlen (contents), NULL))
+ {
+ eel_show_error_dialog (_("The emblem cannot be installed."),
+ _("Sorry, unable to save custom emblem name."),
+ GTK_WINDOW (parent_window));
+ g_free (contents);
+ g_free (path);
+ g_free (stat_dir);
+ g_free (dir);
+ return;
+ }
+
+ g_free (contents);
+ g_free (path);
+ }
+
+ /* Touch the toplevel dir */
+ if (g_stat (stat_dir, &stat_buf) == 0)
+ {
+ ubuf.actime = stat_buf.st_atime;
+ ubuf.modtime = time (NULL);
+ utime (stat_dir, &ubuf);
+ }
+
+ g_free (dir);
+ g_free (stat_dir);
+
+ return;
+}
+
+gboolean
+caja_emblem_can_remove_emblem (const char *keyword)
+{
+ char *path;
+ gboolean ret = TRUE;
+
+ path = g_strdup_printf ("%s/.icons/hicolor/48x48/emblems/emblem-%s.png",
+ g_get_home_dir (), keyword);
+
+ if (g_access (path, F_OK|W_OK) != 0)
+ {
+ ret = FALSE;
+ }
+
+ g_free (path);
+
+ return ret;
+}
+
+gboolean
+caja_emblem_can_rename_emblem (const char *keyword)
+{
+ char *path;
+ gboolean ret = TRUE;
+
+ path = g_strdup_printf ("%s/.icons/hicolor/48x48/emblems/emblem-%s.png",
+ g_get_home_dir (), keyword);
+
+ if (access (path, F_OK|R_OK) != 0)
+ {
+ ret = FALSE;
+ }
+
+ g_free (path);
+
+ return ret;
+}
+
+/* of course, this only works for custom installed emblems */
+gboolean
+caja_emblem_remove_emblem (const char *keyword)
+{
+ char *path, *dir, *stat_dir;
+ struct stat stat_buf;
+ struct utimbuf ubuf;
+
+
+ dir = g_strdup_printf ("%s/.icons/hicolor/48x48/emblems",
+ g_get_home_dir ());
+ stat_dir = g_strdup_printf ("%s/.icons/hicolor",
+ g_get_home_dir ());
+
+ path = g_strdup_printf ("%s/emblem-%s.png", dir, keyword);
+
+ /* delete the image */
+ if (unlink (path) != 0)
+ {
+ /* couldn't delete it */
+ g_free (dir);
+ g_free (stat_dir);
+ g_free (path);
+ return FALSE;
+ }
+
+ g_free (path);
+
+ path = g_strdup_printf ("%s/emblem-%s.icon", dir, keyword);
+
+ if (unlink (path) != 0)
+ {
+ g_free (dir);
+ g_free (stat_dir);
+ g_free (path);
+ return FALSE;
+ }
+
+ /* Touch the toplevel dir */
+ if (stat (stat_dir, &stat_buf) == 0)
+ {
+ ubuf.actime = stat_buf.st_atime;
+ ubuf.modtime = time (NULL);
+ utime (stat_dir, &ubuf);
+ }
+
+ g_free (dir);
+ g_free (stat_dir);
+
+ return TRUE;
+}
+
+/* this only works for custom emblems as well */
+gboolean
+caja_emblem_rename_emblem (const char *keyword, const char *name)
+{
+ char *path, *dir, *stat_dir, *icon_name;
+ struct stat stat_buf;
+ struct utimbuf ubuf;
+ FILE *file;
+
+ dir = g_strdup_printf ("%s/.icons/hicolor/48x48/emblems",
+ g_get_home_dir ());
+ stat_dir = g_strdup_printf ("%s/.icons/hicolor",
+ g_get_home_dir ());
+
+ path = g_strdup_printf ("%s/emblem-%s.icon", dir, keyword);
+
+ file = fopen (path, "w+");
+ g_free (path);
+
+ if (file == NULL)
+ {
+ g_free (dir);
+ g_free (stat_dir);
+ return FALSE;
+ }
+
+
+ /* write the new icon description */
+ fprintf (file, "\n[Icon Data]\n\nDisplayName=%s\n", name);
+ fflush (file);
+ fclose (file);
+
+ icon_name = caja_emblem_get_icon_name_from_keyword (keyword);
+ caja_icon_info_clear_caches (); /* A bit overkill, but this happens rarely */
+
+ g_free (icon_name);
+
+ /* Touch the toplevel dir */
+ if (stat (stat_dir, &stat_buf) == 0)
+ {
+ ubuf.actime = stat_buf.st_atime;
+ ubuf.modtime = time (NULL);
+ utime (stat_dir, &ubuf);
+ }
+
+ g_free (dir);
+ g_free (stat_dir);
+
+ return TRUE;
+}
+
+char *
+caja_emblem_create_unique_keyword (const char *base)
+{
+ char *keyword;
+ time_t t;
+ int i;
+
+ time (&t);
+ i=0;
+
+ keyword = NULL;
+ do
+ {
+ g_free (keyword);
+ keyword = g_strdup_printf ("user%s%d%d", base, (int)t, i++);
+ }
+ while (is_reserved_keyword (keyword));
+
+ return keyword;
+}
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