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/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>  
 *
 *
 * Authors:
 *      Jeffrey Stedfast <fejj@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#ifndef EM_FOLDER_TREE_MODEL_H
#define EM_FOLDER_TREE_MODEL_H

#include <gtk/gtk.h>
#include <libxml/tree.h>
#include <camel/camel-store.h>
#include <libedataserver/e-account-list.h>

#include <shell/e-shell-module.h>

/* Standard GObject macros */
#define EM_TYPE_FOLDER_TREE_MODEL \
    (em_folder_tree_model_get_type ())
#define EM_FOLDER_TREE_MODEL(obj) \
    (G_TYPE_CHECK_INSTANCE_CAST \
    ((obj), EM_TYPE_FOLDER_TREE_MODEL, EMFolderTreeModel))
#define EM_FOLDER_TREE_MODEL_CLASS(cls) \
    (G_TYPE_CHECK_CLASS_CAST \
    ((cls), EM_TYPE_FOLDER_TREE_MODEL, EMFolderTreeModelClass))
#define EM_IS_FOLDER_TREE_MODEL(obj) \
    (G_TYPE_CHECK_INSTANCE_TYPE \
    ((obj), EM_TYPE_FOLDER_TREE_MODEL))
#define EM_IS_FOLDER_TREE_MODEL_CLASS(cls) \
    (G_TYPE_CHECK_CLASS_TYPE \
    ((cls), EM_TYPE_FOLDER_TREE_MODEL))
#define EM_FOLDER_TREE_MODEL_GET_CLASS(obj) \
    (G_TYPE_INSTANCE_GET_CLASS \
    ((obj), EM_TYPE_FOLDER_TREE_MODEL, EMFolderTreeModelClass))

G_BEGIN_DECLS

typedef struct _EMFolderTreeModel EMFolderTreeModel;
typedef struct _EMFolderTreeModelClass EMFolderTreeModelClass;
typedef struct _EMFolderTreeModelPrivate EMFolderTreeModelPrivate;
typedef struct _EMFolderTreeModelStoreInfo EMFolderTreeModelStoreInfo;

enum {
    COL_STRING_DISPLAY_NAME,  /* string that appears in the tree */
    COL_POINTER_CAMEL_STORE,  /* CamelStore object */
    COL_STRING_FULL_NAME,   /* if node is a folder, the full path name of the folder, no leading / */
    COL_STRING_ICON_NAME,     /* icon name for the folder */
    COL_STRING_URI,           /* the uri to get the store or folder object */
    COL_UINT_UNREAD,          /* unread count */
    COL_UINT_FLAGS,     /* FolderInfo.flags */

    COL_BOOL_IS_STORE,        /* toplevel store node? */
    COL_BOOL_IS_FOLDER,       /* folder (not a store) */
    COL_BOOL_LOAD_SUBDIRS,    /* %TRUE only if the store/folder
                   * has subfolders which have not yet
                   * been added to the tree */
    NUM_COLUMNS
};


struct _EMFolderTreeModelStoreInfo {
    CamelStore *store;
    GtkTreeRowReference *row;
    GHashTable *full_hash;  /* maps CamelFolderInfo::full_name's to GtkTreeRowReferences */
    EAccount *account;

    char *display_name;

    unsigned int created_id;
    unsigned int deleted_id;
    unsigned int renamed_id;
    unsigned int subscribed_id;
    unsigned int unsubscribed_id;
};

struct _EMFolderTreeModel {
    GtkTreeStore parent;
    EMFolderTreeModelPrivate *priv;

    char *filename;            /* state filename */
    xmlDocPtr state;           /* saved expanded state from previous session */

    GHashTable *store_hash;    /* maps CamelStore's to store-info's */
    GHashTable *uri_hash;      /* maps URI's to GtkTreeRowReferences */

    EAccountList *accounts;
    GHashTable *account_hash;  /* maps accounts to store-info's */
    gulong account_changed_id;
    gulong account_removed_id;
};

struct _EMFolderTreeModelClass {
    GtkTreeStoreClass parent_class;

    /* signals */
    void     (* loading_row)        (EMFolderTreeModel *model,
                     GtkTreePath *path,
                     GtkTreeIter *iter);

    void     (* loaded_row)         (EMFolderTreeModel *model,
                     GtkTreePath *path,
                     GtkTreeIter *iter);

    void     (* folder_added)       (EMFolderTreeModel *model,
                     const char *path,
                     const char *uri);

    void     (* store_added)        (EMFolderTreeModel *model,
                     const char *uri);
};


GType       em_folder_tree_model_get_type   (void);
EMFolderTreeModel *
        em_folder_tree_model_new    (EShellModule *shell_module);
EShellModule *  em_folder_tree_model_get_shell_module
                        (EMFolderTreeModel *model);

void em_folder_tree_model_set_folder_info (EMFolderTreeModel *model, GtkTreeIter *iter,
                       struct _EMFolderTreeModelStoreInfo *si,
                       CamelFolderInfo *fi, int fully_loaded);

void em_folder_tree_model_add_store (EMFolderTreeModel *model, CamelStore *store, const char *display_name);
void em_folder_tree_model_remove_store (EMFolderTreeModel *model, CamelStore *store);
void em_folder_tree_model_remove_folders (EMFolderTreeModel *model, struct _EMFolderTreeModelStoreInfo *si,
                      GtkTreeIter *toplevel);

char *em_folder_tree_model_get_selected (EMFolderTreeModel *model);
void em_folder_tree_model_set_selected (EMFolderTreeModel *model, const char *uri);

gboolean em_folder_tree_model_get_expanded (EMFolderTreeModel *model, const char *key);
void em_folder_tree_model_set_expanded (EMFolderTreeModel *model, const char *key, gboolean expanded);

gboolean em_folder_tree_model_get_expanded_uri (EMFolderTreeModel *model, const char *uri);
void em_folder_tree_model_set_expanded_uri (EMFolderTreeModel *model, const char *uri, gboolean expanded);

void em_folder_tree_model_save_state (EMFolderTreeModel *model);

typedef void (* EMFTModelExpandFunc) (EMFolderTreeModel *model, const char *path, void *user_data);
void em_folder_tree_model_expand_foreach (EMFolderTreeModel *model, EMFTModelExpandFunc func, void *user_data);

void em_folder_tree_model_set_unread_count (EMFolderTreeModel *model, CamelStore *store, const char *path, int unread);
gboolean em_folder_tree_model_is_type_inbox (EMFolderTreeModel *model, CamelStore *store, const char *full);
char * em_folder_tree_model_get_folder_name (EMFolderTreeModel *model, CamelStore *store, const char *full);

G_END_DECLS

#endif /* EM_FOLDER_TREE_MODEL_H */