/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
*
* Authors: Michel Zucchi <notzed@ximian.com>
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef __E_MENU_H__
#define __E_MENU_H__
#include <glib-object.h>
#include "libedataserver/e-msgport.h"
#ifdef __cplusplus
extern "C" {
#pragma }
#endif /* __cplusplus */
/* This is an abstract popup menu management/merging class.
To implement your own popup menu system, just create your own
target types and implement the target free method. */
typedef struct _EMenu EMenu;
typedef struct _EMenuClass EMenuClass;
typedef struct _EMenuItem EMenuItem;
typedef struct _EMenuUIFile EMenuUIFile;
typedef struct _EMenuPixmap EMenuPixmap;
typedef struct _EMenuFactory EMenuFactory; /* anonymous type */
typedef struct _EMenuTarget EMenuTarget;
typedef void (*EMenuFactoryFunc)(EMenu *emp, void *data);
typedef void (*EMenuActivateFunc)(EMenu *, EMenuItem *, void *data);
typedef void (*EMenuToggleActivateFunc)(EMenu *, EMenuItem *, int state, void *data);
typedef void (*EMenuItemsFunc)(EMenu *, GSList *items, GSList *uifiles, GSList *pixmaps, void *data);
/**
* enum _e_menu_t - Menu item type.
*
* @E_MENU_ITEM: Normal menu item.
* @E_MENU_TOGGLE: Toggle menu item.
* @E_MENU_RADIO: unimplemented.
* @E_MENU_TYPE_MASK: Mask used to separate item type from option bits.
* @E_MENU_ACTIVE: Whether a toggle item is active.
*
* The type of menu items which are supported by the menu system.
**/
enum _e_menu_t {
E_MENU_ITEM = 0,
E_MENU_TOGGLE,
E_MENU_RADIO,
E_MENU_TYPE_MASK = 0xffff,
E_MENU_ACTIVE = 0x10000,
};
/**
* struct _EMenuItem - A BonoboUI menu item.
*
* @type: Menu item type. %E_MENU_ITEM or %E_MENU_TOGGLE.
* @path: BonoboUI Path to the menu item.
* @verb: BonoboUI verb for the menu item.
* @activate: Callback when the menu item is selected. This will be a
* EMenuToggleActivateFunc for toggle items or EMenuActivateFunc for
* normal items.
* @user_data: User data for item.
* @visible: Visibility mask, unimplemented.
* @enable: Sensitivity mask, combined with the target mask.
*
* An EMenuItem defines a single menu item. This menu item is used to
* hook onto callbacks from the bonobo menus, but not to build or
* merge the menu itself.
**/
struct _EMenuItem {
enum _e_menu_t type;
char *path; /* full path? can we just create it from verb? */
char *verb; /* command verb */
GCallback activate; /* depends on type, the bonobo activate callback */
void *user_data; /* up to caller to use */
guint32 visible; /* is visible mask */
guint32 enable; /* is enable mask */
};
/**
* struct _EMenuPixmap - A menu icon holder.
*
* @command: The path to the command or verb to which this pixmap belongs.
* @name: The name of the icon. Either an icon-theme name or the full
* pathname of the icon.
* @size: The e-icon-factory icon size.
* @pixmap: The pixmap converted to XML format. If not set, then EMenu will
* create it as required. This must be freed if set in the free function.
*
* Used to track all pixmap items used in menus. These need to be
* supplied separately from the menu definition.
**/
struct _EMenuPixmap {
char *command;
char *name;
int size;
char *pixmap;
};
/**
* struct _EMenuUIFile - A meu UI file holder.
*
* @appdir: TODO; should this be handled internally.
* @appname: TODO; should this be handled internally.
* @filename: The filename of the BonoboUI XML menu definition.
*
* These values are passed directly to bonobo_ui_util_set_ui() when
* the menu is activated.
**/
struct _EMenuUIFile {
char *appdir;
char *appname;
char *filename;
};
/**
* struct _EMenuTarget - A BonoboUI menu target definition.
*
* @menu: The parent menu object, used for virtual methods on the target.
* @widget: The parent widget where available. In some cases the type
* of this object is part of the published api for the target, in
* others it is merely a GtkWidget from which you can find the
* toplevel widget.
* @type: Target type. This will be defined by the implementation.
* @mask: Target mask. This is used to sensitise show items based on
* their definition in EMenuItem.
*
* An EMenuTarget defines the context for a specific view instance.
* It is used to enable and show menu items, and to provide contextual
* data to menu invocations.
**/
struct _EMenuTarget {
struct _EMenu *menu; /* used for virtual methods */
struct _GtkWidget *widget; /* used if you need a parent toplevel, if available */
guint32 type; /* for implementors */
guint32 mask; /* enable/visible mask */
/* implementation fields follow */
};
/**
* struct _EMenu - A BonoboUI menu manager object.
*
* @object: Superclass.
* @priv: Private data.
* @menuid: The id of this menu instance.
* @uic: The current BonoboUIComponent which stores the actual menu
* items this object manages.
* @target: The current target for the view.
*
* The EMenu manager object manages the mappings between EMenuItems
* and the BonoboUI menus loaded from UI files.
**/
struct _EMenu {
GObject object;
struct _EMenuPrivate *priv;
char *menuid;
struct _BonoboUIComponent *uic;
EMenuTarget *target;
};
/**
* struct _EMenuClass -
*
* @object_class: Superclass type.
* @factories: A list of factories for this particular class of main menu.
* @target_free: Virtual method to free the menu target. The base
* class free method frees the allocation and unrefs the EMenu parent
* pointer.
*
* The EMenu class definition. This should be sub-classed for each
* component that wants to provide hookable main menus. The subclass
* only needs to know how to allocate and free the various target
* types it supports.
**/
struct _EMenuClass {
GObjectClass object_class;
EDList factories;
void (*target_free)(EMenu *ep, EMenuTarget *t);
};
GType e_menu_get_type(void);
/* Static class methods */
EMenuFactory *e_menu_class_add_factory(EMenuClass *klass, const char *menuid, EMenuFactoryFunc func, void *data);
void e_menu_class_remove_factory(EMenuClass *klass, EMenuFactory *f);
EMenu *e_menu_construct(EMenu *menu, const char *menuid);
void e_menu_add_ui(EMenu *, const char *appdir, const char *appname, const char *filename);
void e_menu_add_pixmap(EMenu *, const char *cmd, const char *name, int size);
void *e_menu_add_items(EMenu *emp, GSList *items, GSList *uifiles, GSList *pixmaps, EMenuItemsFunc freefunc, void *data);
void e_menu_remove_items(EMenu *emp, void *handle);
void e_menu_activate(EMenu *, struct _BonoboUIComponent *uic, int act);
void e_menu_update_target(EMenu *, void *);
void *e_menu_target_new(EMenu *, int type, size_t size);
void e_menu_target_free(EMenu *, void *);
/* ********************************************************************** */
/* menu plugin, they are closely integrated */
/* To implement a basic menu plugin, you just need to subclass
this and initialise the class target type tables */
#include "e-util/e-plugin.h"
typedef struct _EMenuHookPixmap EMenuHookPixmap;
typedef struct _EMenuHookMenu EMenuHookMenu;
typedef struct _EMenuHook EMenuHook;
typedef struct _EMenuHookClass EMenuHookClass;
typedef struct _EPluginHookTargetMap EMenuHookTargetMap;
typedef struct _EPluginHookTargetKey EMenuHookTargetMask;
typedef void (*EMenuHookFunc)(struct _EPlugin *plugin, EMenuTarget *target);
/**
* struct _EMenuHookMenu - A group of items targetting a specific menu.
*
* @hook: Parent pointer.
* @id: The identifier of the menu or view to which these items belong.
* @target_type: The target number of the type of target these menu
* items expect. This will be defined by menu itself.
* @items: A list of EMenuItems.
* @uis: A list of filenames of the BonoboUI files that need to be
* loaded for an active view.
* @pixmaps: A list of EMenuHookPixmap structures for the menus.
*
* This structure is used to keep track of all of the items that a
* plugin wishes to add to specific menu. This is used internally by
* a factory method defined by the EMenuHook to add the right menu
* items to a given view.
**/
struct _EMenuHookMenu {
struct _EMenuHook *hook; /* parent pointer */
char *id; /* target menu id for these menu items */
int target_type; /* target type, not used */
GSList *items; /* items to add to menu */
GSList *uis; /* ui files */
GSList *pixmaps; /* pixmap descriptors */
};
/**
* struct _EMenuHook - A BonoboUI menu hook.
*
* @hook: Superclass.
* @menus: A list of EMenuHookMenus for all menus registered on this
* hook type.
*
* The EMenuHook class loads and manages the meta-data to required to
* map plugin definitions to physical menus.
**/
struct _EMenuHook {
EPluginHook hook;
GSList *menus;
};
/**
* struct _EMenuHookClass - Menu hook type.
*
* @hook_class: Superclass type.
* @target_map: Table of EluginHookTargetMaps which enumerate the
* target types and enable bits of the implementing class.
* @menu_class: The EMenuClass of the corresponding popup manager for
* implementing the class.
*
* The EMenuHookClass is an empty concrete class. It must be
* subclassed and initialised appropriately to perform useful work.
*
* The EPluginHookClass.id must be set to the name and version of the
* hook handler the implementation defines. The @target_map must be
* initialised with the data required to enumerate the target types
* and enable flags supported by the implementing class.
**/
struct _EMenuHookClass {
EPluginHookClass hook_class;
/* EMenuHookTargetMap by .type */
GHashTable *target_map;
/* the menu class these menus belong to */
EMenuClass *menu_class;
};
GType e_menu_hook_get_type(void);
/* for implementors */
void e_menu_hook_class_add_target_map(EMenuHookClass *klass, const EMenuHookTargetMap *);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __E_MENU_H__ */
