implement theme saving
2007-06-24 Jens Granseuer <jensgr@gmx.net> * Makefile.am: * appearance-themes.c: (theme_selection_changed_cb), (theme_save_cb), (themes_init), (themes_shutdown): * appearance.glade: * appearance.h: * theme-save.c: * theme-save.h: * theme-util.h: implement theme saving svn path=/trunk/; revision=7771
This commit is contained in:
Jens Granseuer
Jens Granseuer
parent
4dd7379dbf
commit
122df3a8d0
8 changed files with 646 additions and 2 deletions
361
capplets/appearance/theme-save.c
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361
capplets/appearance/theme-save.c
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/*
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* Copyright (C) 2007 The GNOME Foundation
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* Written by Thomas Wood <thos@gnome.org>
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* Jens Granseuer <jensgr@gmx.net>
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "appearance.h"
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#include <libgnomevfs/gnome-vfs-ops.h>
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#include "theme-save.h"
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#include "theme-util.h"
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#include "capplet-util.h"
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static GQuark error_quark;
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enum {
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INVALID_THEME_NAME
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};
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/* taken from gnome-desktop-item.c */
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static gchar *
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escape_string_and_dup (const gchar *s)
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{
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gchar *return_value, *p;
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const gchar *q;
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int len = 0;
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if (s == NULL)
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return g_strdup("");
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q = s;
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while (*q)
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{
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len++;
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if (strchr ("\n\r\t\\", *q) != NULL)
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len++;
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q++;
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}
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return_value = p = (gchar *) g_malloc (len + 1);
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do
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{
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switch (*s)
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{
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case '\t':
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*p++ = '\\';
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*p++ = 't';
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break;
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case '\n':
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*p++ = '\\';
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*p++ = 'n';
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break;
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case '\r':
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*p++ = '\\';
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*p++ = 'r';
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break;
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case '\\':
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*p++ = '\\';
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*p++ = '\\';
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break;
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default:
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*p++ = *s;
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}
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}
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while (*s++);
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return return_value;
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}
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static gboolean
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check_theme_name (const gchar *theme_name,
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GError **error)
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{
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if (theme_name == NULL) {
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g_set_error (error,
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error_quark,
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INVALID_THEME_NAME,
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_("Theme name must be present"));
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return FALSE;
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}
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return TRUE;
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}
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static gchar *
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str_remove_slash (const gchar *src)
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{
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const gchar *i;
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gchar *rtn;
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gint len = 0;
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i = src;
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while (*i) {
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if (*i != '/')
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len++;
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i++;
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}
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rtn = (gchar *) g_malloc (len + 1);
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while (*src) {
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if (*src != '/') {
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*rtn = *src;
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rtn++;
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}
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src++;
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}
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*rtn = '\0';
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return rtn - len;
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}
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static gboolean
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setup_directory_structure (const gchar *theme_name,
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GError **error)
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{
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gchar *dir, *theme_name_dir;
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GnomeVFSURI *uri;
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gboolean retval = TRUE;
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theme_name_dir = str_remove_slash (theme_name);
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dir = g_build_filename (g_get_home_dir (), ".themes", NULL);
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uri = gnome_vfs_uri_new (dir);
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if (!gnome_vfs_uri_exists (uri))
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gnome_vfs_make_directory_for_uri (uri, 0775);
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gnome_vfs_uri_unref (uri);
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g_free (dir);
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dir = g_build_filename (g_get_home_dir (), ".themes", theme_name_dir, NULL);
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uri = gnome_vfs_uri_new (dir);
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if (!gnome_vfs_uri_exists (uri))
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gnome_vfs_make_directory_for_uri (uri, 0775);
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gnome_vfs_uri_unref (uri);
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g_free (dir);
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dir = g_build_filename (g_get_home_dir (), ".themes", theme_name_dir, "index.theme", NULL);
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g_free (theme_name_dir);
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uri = gnome_vfs_uri_new (dir);
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g_free (dir);
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if (gnome_vfs_uri_exists (uri)) {
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GtkDialog *dialog;
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GtkWidget *button;
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gint response;
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dialog = (GtkDialog *) gtk_message_dialog_new (NULL,
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GTK_DIALOG_MODAL,
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GTK_MESSAGE_QUESTION,
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GTK_BUTTONS_CANCEL,
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_("The theme already exists. Would you like to replace it?"));
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button = gtk_dialog_add_button (dialog, _("_Overwrite"), GTK_RESPONSE_ACCEPT);
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gtk_button_set_image (GTK_BUTTON (button),
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gtk_image_new_from_stock (GTK_STOCK_SAVE, GTK_ICON_SIZE_BUTTON));
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response = gtk_dialog_run (dialog);
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gtk_widget_destroy (GTK_WIDGET (dialog));
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retval = (response != GTK_RESPONSE_CANCEL);
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}
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gnome_vfs_uri_unref (uri);
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return retval;
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}
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static gboolean
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write_theme_to_disk (GnomeThemeMetaInfo *theme_info,
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const gchar *theme_name,
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const gchar *theme_description,
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gboolean save_background,
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GError **error)
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{
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gchar *dir, *theme_name_dir;
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GnomeVFSURI *uri;
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GnomeVFSURI *target_uri;
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GnomeVFSHandle *handle = NULL;
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GnomeVFSFileSize bytes_written;
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gchar *str, *current_background;
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GConfClient *client;
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const gchar *theme_header =
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"[Desktop Entry]\n"
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"Name=%s\n"
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"Type=X-GNOME-Metatheme\n"
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"Comment=%s\n"
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"Encoding=UTF-8\n"
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"\n"
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"[X-GNOME-Metatheme]\n"
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"GtkTheme=%s\n"
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"MetacityTheme=%s\n"
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"IconTheme=%s\n";
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theme_name_dir = str_remove_slash (theme_name);
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dir = g_build_filename (g_get_home_dir (), ".themes", theme_name_dir, "index.theme~", NULL);
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g_free (theme_name_dir);
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uri = gnome_vfs_uri_new (dir);
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dir [strlen (dir) - 1] = '\000';
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target_uri = gnome_vfs_uri_new (dir);
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g_free (dir);
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gnome_vfs_create_uri (&handle, uri, GNOME_VFS_OPEN_READ | GNOME_VFS_OPEN_WRITE, FALSE, 0644);
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gnome_vfs_truncate_handle (handle, 0);
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/* start making the theme file */
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str = g_strdup_printf (theme_header, theme_name, theme_description,
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theme_info->gtk_theme_name,
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theme_info->metacity_theme_name,
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theme_info->icon_theme_name);
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gnome_vfs_write (handle, str, strlen (str), &bytes_written);
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g_free (str);
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if (theme_info->gtk_color_scheme) {
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gchar *a, *tmp;
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tmp = g_strdup (theme_info->gtk_color_scheme);
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for (a = tmp; *a != '\0'; a++)
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if (*a == '\n')
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*a = ',';
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str = g_strdup_printf ("GtkColorScheme=%s\n", tmp);
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gnome_vfs_write (handle, str, strlen (str), &bytes_written);
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g_free (str);
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g_free (tmp);
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}
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if (save_background) {
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client = gconf_client_get_default ();
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current_background = gconf_client_get_string (client, BACKGROUND_KEY, NULL);
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if (current_background != NULL) {
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str = g_strdup_printf ("BackgroundImage=%s\n", current_background);
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gnome_vfs_write (handle, str, strlen (str), &bytes_written);
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g_free (current_background);
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g_free (str);
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}
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g_object_unref (client);
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}
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gnome_vfs_close (handle);
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gnome_vfs_move_uri (uri, target_uri, TRUE);
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gnome_vfs_uri_unref (uri);
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gnome_vfs_uri_unref (target_uri);
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return TRUE;
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}
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static gboolean
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save_theme_to_disk (GnomeThemeMetaInfo *theme_info,
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const gchar *theme_name,
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const gchar *theme_description,
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gboolean save_background,
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GError **error)
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{
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if (!check_theme_name (theme_name, error))
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return FALSE;
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if (!setup_directory_structure (theme_name, error))
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return FALSE;
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if (!write_theme_to_disk (theme_info, theme_name, theme_description, save_background, error))
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return FALSE;
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return TRUE;
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}
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static void
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save_dialog_response (GtkWidget *save_dialog,
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gint response_id,
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AppearanceData *data)
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{
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if (response_id == GTK_RESPONSE_OK) {
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GtkWidget *entry;
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GtkWidget *text_view;
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GtkTextBuffer *buffer;
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GtkTextIter start_iter;
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GtkTextIter end_iter;
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gchar *buffer_text;
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GnomeThemeMetaInfo *theme_info;
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gchar *theme_description = NULL;
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gchar *theme_name = NULL;
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gboolean save_background;
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GError *error = NULL;
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entry = glade_xml_get_widget (data->xml, "save_dialog_entry");
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theme_name = escape_string_and_dup (gtk_entry_get_text (GTK_ENTRY (entry)));
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text_view = glade_xml_get_widget (data->xml, "save_dialog_textview");
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buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view));
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gtk_text_buffer_get_start_iter (buffer, &start_iter);
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gtk_text_buffer_get_end_iter (buffer, &end_iter);
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buffer_text = gtk_text_buffer_get_text (buffer, &start_iter, &end_iter, FALSE);
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theme_description = escape_string_and_dup (buffer_text);
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g_free (buffer_text);
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theme_info = (GnomeThemeMetaInfo *) g_object_get_data (G_OBJECT (save_dialog), "meta-theme-info");
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save_background = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (
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glade_xml_get_widget (data->xml, "save_background_checkbutton")));
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save_theme_to_disk (theme_info, theme_name, theme_description, save_background, &error);
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g_free (theme_name);
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g_free (theme_description);
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g_clear_error (&error);
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}
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gtk_widget_hide (save_dialog);
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}
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static void
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entry_text_changed (GtkEditable *editable,
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GladeXML *dialog)
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{
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const gchar *text;
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text = gtk_entry_get_text (GTK_ENTRY (editable));
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gtk_widget_set_sensitive (glade_xml_get_widget (dialog, "save_dialog_save_button"),
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text != NULL && text[0] != '\000');
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}
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void
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theme_save_dialog_run (GnomeThemeMetaInfo *theme_info,
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AppearanceData *data)
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{
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GtkWidget *entry;
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GtkWidget *text_view;
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GtkTextBuffer *text_buffer;
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entry = glade_xml_get_widget (data->xml, "save_dialog_entry");
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text_view = glade_xml_get_widget (data->xml, "save_dialog_textview");
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if (data->theme_save_dialog == NULL) {
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data->theme_save_dialog = glade_xml_get_widget (data->xml, "theme_save_dialog");
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g_signal_connect (data->theme_save_dialog, "response", (GCallback) save_dialog_response, data);
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g_signal_connect (data->theme_save_dialog, "delete-event", (GCallback) gtk_true, NULL);
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g_signal_connect (entry, "changed", (GCallback) entry_text_changed, data->xml);
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error_quark = g_quark_from_string ("gnome-theme-save");
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gtk_widget_set_size_request (text_view, 300, 100);
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}
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gtk_entry_set_text (GTK_ENTRY (entry), "");
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entry_text_changed (GTK_EDITABLE (entry), data->xml);
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gtk_widget_grab_focus (entry);
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text_buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view));
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gtk_text_buffer_set_text (text_buffer, "", 0);
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g_object_set_data (G_OBJECT (data->theme_save_dialog), "meta-theme-info", theme_info);
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gtk_window_set_transient_for (GTK_WINDOW (data->theme_save_dialog),
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GTK_WINDOW (glade_xml_get_widget (data->xml, "appearance_window")));
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gtk_widget_show (data->theme_save_dialog);
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}
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