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/*
* Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
*
* 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 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.
*
* You can also choose to distribute this program under the terms of
* the Unmodified Binary Distribution Licence (as given in the file
* COPYING.UBDL), provided that you have satisfied its requirements.
*/
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
/** @file
*
* Dynamic user interfaces
*
*/
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <ipxe/list.h>
#include <ipxe/dynui.h>
/** List of all dynamic user interfaces */
static LIST_HEAD ( dynamic_uis );
/**
* Create dynamic user interface
*
* @v name User interface name, or NULL
* @v title User interface title, or NULL
* @ret dynui Dynamic user interface, or NULL on failure
*/
struct dynamic_ui * create_dynui ( const char *name, const char *title ) {
struct dynamic_ui *dynui;
size_t name_len;
size_t title_len;
size_t len;
char *name_copy;
char *title_copy;
/* Destroy any existing user interface of this name */
dynui = find_dynui ( name );
if ( dynui )
destroy_dynui ( dynui );
/* Use empty title if none given */
if ( ! title )
title = "";
/* Allocate user interface */
name_len = ( name ? ( strlen ( name ) + 1 /* NUL */ ) : 0 );
title_len = ( strlen ( title ) + 1 /* NUL */ );
len = ( sizeof ( *dynui ) + name_len + title_len );
dynui = zalloc ( len );
if ( ! dynui )
return NULL;
name_copy = ( ( void * ) ( dynui + 1 ) );
title_copy = ( name_copy + name_len );
/* Initialise user interface */
if ( name ) {
strcpy ( name_copy, name );
dynui->name = name_copy;
}
strcpy ( title_copy, title );
dynui->title = title_copy;
INIT_LIST_HEAD ( &dynui->items );
/* Add to list of user interfaces */
list_add_tail ( &dynui->list, &dynamic_uis );
DBGC ( dynui, "DYNUI %s created with title \"%s\"\n",
dynui->name, dynui->title );
return dynui;
}
/**
* Add dynamic user interface item
*
* @v dynui Dynamic user interface
* @v name Name, or NULL
* @v text Text, or NULL
* @v shortcut Shortcut key
* @v is_default Item is the default item
* @ret item User interface item, or NULL on failure
*/
struct dynamic_item * add_dynui_item ( struct dynamic_ui *dynui,
const char *name, const char *text,
int shortcut, int is_default ) {
struct dynamic_item *item;
size_t name_len;
size_t text_len;
size_t len;
char *name_copy;
char *text_copy;
/* Use empty text if none given */
if ( ! text )
text = "";
/* Allocate item */
name_len = ( name ? ( strlen ( name ) + 1 /* NUL */ ) : 0 );
text_len = ( strlen ( text ) + 1 /* NUL */ );
len = ( sizeof ( *item ) + name_len + text_len );
item = zalloc ( len );
if ( ! item )
return NULL;
name_copy = ( ( void * ) ( item + 1 ) );
text_copy = ( name_copy + name_len );
/* Initialise item */
if ( name ) {
strcpy ( name_copy, name );
item->name = name_copy;
}
strcpy ( text_copy, text );
item->text = text_copy;
item->index = dynui->count++;
item->shortcut = shortcut;
item->is_default = is_default;
/* Add to list of items */
list_add_tail ( &item->list, &dynui->items );
return item;
}
/**
* Destroy dynamic user interface
*
* @v dynui Dynamic user interface
*/
void destroy_dynui ( struct dynamic_ui *dynui ) {
struct dynamic_item *item;
struct dynamic_item *tmp;
/* Remove from list of user interfaces */
list_del ( &dynui->list );
/* Free items */
list_for_each_entry_safe ( item, tmp, &dynui->items, list ) {
list_del ( &item->list );
free ( item );
}
/* Free user interface */
free ( dynui );
}
/**
* Find dynamic user interface
*
* @v name User interface name, or NULL
* @ret dynui Dynamic user interface, or NULL if not found
*/
struct dynamic_ui * find_dynui ( const char *name ) {
struct dynamic_ui *dynui;
list_for_each_entry ( dynui, &dynamic_uis, list ) {
if ( ( dynui->name == name ) ||
( strcmp ( dynui->name, name ) == 0 ) ) {
return dynui;
}
}
return NULL;
}
/**
* Find dynamic user interface item by index
*
* @v dynui Dynamic user interface
* @v index Index
* @ret item User interface item, or NULL if not found
*/
struct dynamic_item * dynui_item ( struct dynamic_ui *dynui,
unsigned int index ) {
struct dynamic_item *item;
list_for_each_entry ( item, &dynui->items, list ) {
if ( index-- == 0 )
return item;
}
return NULL;
}
/**
* Find dynamic user interface item by shortcut key
*
* @v dynui Dynamic user interface
* @v key Shortcut key
* @ret item User interface item, or NULL if not found
*/
struct dynamic_item * dynui_shortcut ( struct dynamic_ui *dynui, int key ) {
struct dynamic_item *item;
list_for_each_entry ( item, &dynui->items, list ) {
if ( key && ( key == item->shortcut ) )
return item;
}
return NULL;
}
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