New. New.

* e-component-info.c: New.
* e-component-info.h: New.

svn path=/trunk/; revision=16256

3 files changed, 366 insertions, 0 deletions

diff --git a/shell/ChangeLog b/shell/ChangeLog
index 75a40b2769..4e2e94ac8b 100644
--- a/shell/ChangeLog
+++ b/shell/ChangeLog
@@ -1,5 +1,10 @@
 2002-03-26  Ettore Perazzoli  <ettore@ximian.com>
 
+	* e-component-info.c: New.
+	* e-component-info.h: New.
+
+2002-03-26  Ettore Perazzoli  <ettore@ximian.com>
+
 	* e-shell-settings-dialog.c (load_pages): g_warning if the control
 	cannot be activated.
 
diff --git a/shell/e-component-info.c b/shell/e-component-info.c
new file mode 100644
index 0000000000..19d999a868
--- /dev/null
+++ b/shell/e-component-info.c
@@ -0,0 +1,295 @@
+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
+/* e-component-info.c - Load/save information about Evolution components.
+ *
+ * Copyright (C) 2002 Ximian, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * 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: Ettore Perazzoli <ettore@ximian.com>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "e-component-info.h"
+
+#include "e-util/e-lang-utils.h"
+
+#include <gnome-xml/parser.h>
+#include <gnome-xml/xmlmemory.h>
+
+#include <string.h>
+#include <stdlib.h>
+
+
+static char *
+get_value_for_node (xmlNode *node)
+{
+	xmlChar *xml_value;
+	char *glib_value;
+
+	xml_value = xmlNodeGetContent (node);
+	glib_value = g_strdup (xml_value);
+	xmlFree (xml_value);
+
+	return glib_value;
+}
+
+static xmlNode *
+lookup_node (xmlNode *parent_node,
+	     const char *node_name)
+{
+	xmlNode *p;
+
+	for (p = parent_node->childs; p != NULL; p = p->next) {
+		if (strcmp ((const char *) p->name, node_name) == 0)
+			return p;
+	}
+
+	return NULL;
+}
+
+static char *
+get_value (xmlNode *parent_node,
+	   const char *node_name)
+{
+	xmlNode *node;
+
+	node = lookup_node (parent_node, node_name);
+	if (node == NULL)
+		return NULL;
+
+	return get_value_for_node (node);
+}
+
+static xmlNode *
+lookup_node_for_language (xmlNode *parent_node,
+			  const char *node_name,
+			  const char *language_id)
+{
+	xmlNode *p;
+
+	for (p = parent_node->childs; p != NULL; p = p->next) {
+		xmlChar *node_language_id;
+
+		if (strcmp ((const char *) p->name, node_name) != 0)
+			continue;
+
+		node_language_id = xmlNodeGetLang (p);
+		if (node_language_id == NULL)
+			continue;
+
+		if (strcmp (node_language_id, language_id) == 0) {
+			xmlFree (node_language_id);
+			return p;
+		}
+	}
+
+	return NULL;
+}
+
+static char *
+get_i18n_value (xmlNode *parent_node,
+		const char *node_name,
+		GSList *language_list)
+{
+	GSList *p;
+
+	for (p = language_list; p != NULL; p = p->next) {
+		xmlNode *node;
+		const char *language_id;
+
+		language_id = (const char *) p->data;
+		node = lookup_node_for_language (parent_node, node_name, language_id);
+
+		if (node == NULL && language_id[2] == '_') {
+			char short_language_id[3];
+
+			strncpy (short_language_id, language_id, 2);
+			node = lookup_node_for_language (parent_node, node_name, short_language_id);
+		}
+
+		if (node != NULL) {
+			xmlChar *xml_value;
+			char *glib_value;
+
+			xml_value = xmlNodeGetContent (node);
+			glib_value = g_strdup (xml_value);
+			xmlFree (xml_value);
+
+			return glib_value;
+		}
+	}
+
+	return get_value (parent_node, node_name);
+}
+
+
+static void
+add_folder_type (EComponentInfo *info,
+		 xmlNode *parent_node,
+		 GSList *language_list)
+{
+	EComponentInfoFolderType *folder_type;
+	char *user_creatable_string;
+
+	folder_type = g_new (EComponentInfoFolderType, 1);
+
+	folder_type->name           = get_value (parent_node, "name");
+	folder_type->icon_file_name = get_value (parent_node, "icon_file_name");
+	folder_type->display_name   = get_i18n_value (parent_node, "display_name", language_list);
+	folder_type->description    = get_i18n_value (parent_node, "description", language_list);
+
+	/* FIXME dnd types. */
+
+	folder_type->accepted_dnd_types = NULL;
+	folder_type->exported_dnd_types = NULL;
+
+	user_creatable_string = get_value (parent_node, "user_creatable");
+	if (user_creatable_string == NULL || atoi (user_creatable_string) == 0)
+		folder_type->is_user_creatable = FALSE;
+	else
+		folder_type->is_user_creatable = TRUE;
+
+	info->folder_types = g_slist_prepend (info->folder_types, folder_type);
+}
+
+static void
+add_user_creatable_item_type (EComponentInfo *info,
+			      xmlNode *parent_node,
+			      GSList *language_list)
+{
+	EComponentInfoUserCreatableItemType *type;
+
+	type = g_new (EComponentInfoUserCreatableItemType, 1);
+
+	type->id               = get_value (parent_node, "id");
+	type->description      = get_i18n_value (parent_node, "description", language_list);
+	type->icon_file_name   = get_value (parent_node, "icon_file_name");
+	type->menu_description = get_i18n_value (parent_node, "menu_description", language_list);
+	type->menu_shortcut    = get_value (parent_node, "menu_shortcut");
+
+	info->user_creatable_item_types = g_slist_prepend (info->user_creatable_item_types, type);
+}
+
+static void
+add_uri_schema (EComponentInfo *info,
+		xmlNode *parent_node)
+{
+	info->uri_schemas = g_slist_prepend (info->uri_schemas, get_value_for_node (parent_node));
+}
+
+
+EComponentInfo *
+e_component_info_load (const char *file_name)
+{
+	EComponentInfo *new;
+	xmlDoc *doc;
+	xmlNode *root;
+	xmlNode *p;
+	GSList *language_list;
+
+	g_return_val_if_fail (file_name != NULL, NULL);
+
+	doc = xmlParseFile (file_name);
+	if (doc == NULL)
+		return NULL;
+
+	root = xmlDocGetRootElement (doc);
+	if (root == NULL || strcmp (root->name, "evolution_component") != 0) {
+		xmlFreeDoc (doc);
+		return NULL;
+	}
+
+	language_list = e_get_language_list ();
+
+	new = g_new (EComponentInfo, 1);
+
+	new->id                        = get_value (root, "id");
+	new->description               = get_i18n_value (root, "description", language_list);
+	new->icon_file_name            = get_value (root, "icon_file_name");
+
+	new->folder_types              = NULL;
+	new->uri_schemas               = NULL;
+	new->user_creatable_item_types = NULL;
+
+	for (p = root->childs; p != NULL; p = p->next) {
+		if (strcmp ((char *) p->name, "folder_type") == 0) 
+			add_folder_type (new, p, language_list);
+		else if (strcmp ((char *) p->name, "user_creatable_item_type") == 0)
+			add_user_creatable_item_type (new, p, language_list);
+		else if (strcmp ((char *) p->name, "uri_schema") == 0)
+			add_uri_schema (new, p);
+	}
+
+	xmlFreeDoc (doc);
+	e_free_language_list (language_list);
+
+	return new;
+}
+
+void
+e_component_info_free (EComponentInfo *component_info)
+{
+	GSList *p;
+
+	g_return_if_fail (component_info != NULL);
+
+	g_free (component_info->id);
+	g_free (component_info->description);
+	g_free (component_info->icon_file_name);
+
+	for (p = component_info->folder_types; p != NULL; p = p->next) {
+		EComponentInfoFolderType *folder_type;
+		GSList *q;
+
+		folder_type = (EComponentInfoFolderType *) p->data;
+		g_free (folder_type->name);
+		g_free (folder_type->icon_file_name);
+		g_free (folder_type->display_name);
+		g_free (folder_type->description);
+
+		for (q = folder_type->accepted_dnd_types; q != NULL; q = q->next)
+			g_free ((char *) q->data);
+		g_slist_free (folder_type->accepted_dnd_types);
+
+		for (q = folder_type->exported_dnd_types; q != NULL; q = q->next)
+			g_free ((char *) q->data);
+		g_slist_free (folder_type->exported_dnd_types);
+
+		g_free (folder_type);
+	}
+	g_free (component_info->folder_types);
+
+	for (p = component_info->uri_schemas; p != NULL; p = p->next)
+		g_free ((char *) p->data);
+	g_slist_free (component_info->uri_schemas);
+
+	for (p = component_info->user_creatable_item_types; p != NULL; p = p->next) {
+		EComponentInfoUserCreatableItemType *type;
+
+		type = (EComponentInfoUserCreatableItemType *) p->data;
+
+		g_free (type->id);
+		g_free (type->description);
+		g_free (type->icon_file_name);
+		g_free (type->menu_description);
+		g_free (type->menu_shortcut);
+	}
+	g_slist_free (component_info->user_creatable_item_types);
+
+	g_free (component_info);
+}
diff --git a/shell/e-component-info.h b/shell/e-component-info.h
new file mode 100644
index 0000000000..e991631284
--- /dev/null
+++ b/shell/e-component-info.h
@@ -0,0 +1,66 @@
+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
+/* e-component-info.h - Load/save information about Evolution components.
+ *
+ * Copyright (C) 2002 Ximian, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * 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: Ettore Perazzoli <ettore@ximian.com>
+ */
+
+#ifndef E_COMPONENT_INFO_H
+#define E_COMPONENT_INFO_H
+
+#include <glib.h>
+
+struct _EComponentInfoFolderType {
+	char *name;
+	char *icon_file_name;
+	char *display_name;
+	char *description;
+
+	GSList *accepted_dnd_types; /* <char *> */
+	GSList *exported_dnd_types; /* <char *> */
+
+	unsigned int is_user_creatable : 1;
+};
+typedef struct _EComponentInfoFolderType EComponentInfoFolderType;
+
+struct _EComponentInfoUserCreatableItemType {
+	char *id;
+	char *description;
+	char *icon_file_name;
+
+	char *menu_description;
+	char *menu_shortcut;
+};
+typedef struct _EComponentInfoUserCreatableItemType EComponentInfoUserCreatableItemType;
+
+struct _EComponentInfo {
+	char *id;
+	char *description;
+	char *icon_file_name;
+
+	GSList *folder_types;			/* <EComponentInfoFolderType> */
+	GSList *uri_schemas;   			/* <char *> */
+	GSList *user_creatable_item_types;	/* <EComponentInfoUserCreatableItemType> */
+};
+typedef struct _EComponentInfo EComponentInfo;
+
+
+EComponentInfo *e_component_info_load  (const char     *file_name);
+void            e_component_info_free  (EComponentInfo *info);
+
+#endif /* E_COMPONENT_INFO_H */