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/** @file
implements menubar interface functions.
Copyright (c) 2005 - 2011, Intel Corporation. All rights reserved. <BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "EditMenuBar.h"
#include "UefiShellDebug1CommandsLib.h"
#include "EditStatusBar.h"
EDITOR_MENU_ITEM *MenuItems;
MENU_ITEM_FUNCTION *ControlBasedMenuFunctions;
UINTN NumItems;
/**
Cleanup function for a menu bar. frees all allocated memory.
**/
VOID
MenuBarCleanup (
VOID
)
{
SHELL_FREE_NON_NULL(MenuItems);
}
/**
Initialize the menu bar with the specified items.
@param[in] Items The items to display and their functions.
@retval EFI_SUCCESS The initialization was correct.
@retval EFI_OUT_OF_RESOURCES A memory allocation failed.
**/
EFI_STATUS
MenuBarInit (
IN CONST EDITOR_MENU_ITEM *Items
)
{
CONST EDITOR_MENU_ITEM *ItemsWalker;
for (NumItems = 0, ItemsWalker = Items ; ItemsWalker != NULL && ItemsWalker->Function != NULL ; ItemsWalker++,NumItems++);
MenuItems = AllocateZeroPool((NumItems+1) * sizeof(EDITOR_MENU_ITEM));
if (MenuItems == NULL) {
return EFI_OUT_OF_RESOURCES;
}
CopyMem(MenuItems, Items, (NumItems+1) * sizeof(EDITOR_MENU_ITEM));
return EFI_SUCCESS;
}
/**
Initialize the control hot-key with the specified items.
@param[in] Items The hot-key functions.
@retval EFI_SUCCESS The initialization was correct.
**/
EFI_STATUS
ControlHotKeyInit (
IN MENU_ITEM_FUNCTION *Items
)
{
ControlBasedMenuFunctions = Items;
return EFI_SUCCESS;
}
/**
Refresh function for the menu bar.
@param[in] LastRow The last printable row.
@param[in] LastCol The last printable column.
@retval EFI_SUCCESS The refresh was successful.
**/
EFI_STATUS
MenuBarRefresh (
IN CONST UINTN LastRow,
IN CONST UINTN LastCol
)
{
EDITOR_MENU_ITEM *Item;
UINTN Col;
UINTN Row;
UINTN Width;
CHAR16 *NameString;
CHAR16 *FunctionKeyString;
//
// variable initialization
//
Col = 1;
Row = (LastRow - 2);
//
// clear menu bar rows
//
EditorClearLine (LastRow - 2, LastCol, LastRow);
EditorClearLine (LastRow - 1, LastCol, LastRow);
EditorClearLine (LastRow , LastCol, LastRow);
//
// print out the menu items
//
for (Item = MenuItems; Item != NULL && Item->Function != NULL; Item++) {
NameString = HiiGetString(gShellDebug1HiiHandle, Item->NameToken, NULL);
Width = MAX ((StrLen (NameString) + 6), 20);
if (((Col + Width) > LastCol)) {
Row++;
Col = 1;
}
FunctionKeyString = HiiGetString(gShellDebug1HiiHandle, Item->FunctionKeyToken, NULL);
ShellPrintEx ((INT32)(Col) - 1, (INT32)(Row) - 1, L"%E%s%N %H%s%N ", FunctionKeyString, NameString);
FreePool (NameString);
FreePool (FunctionKeyString);
Col += Width;
}
return EFI_SUCCESS;
}
/**
Function to dispatch the correct function based on a function key (F1...)
@param[in] Key The pressed key.
@retval EFI_NOT_FOUND The key was not a valid function key
(an error was sent to the status bar).
@return The return value from the called dispatch function.
**/
EFI_STATUS
MenuBarDispatchFunctionKey (
IN CONST EFI_INPUT_KEY *Key
)
{
UINTN Index;
Index = Key->ScanCode - SCAN_F1;
//
// check whether in range
//
if (Index > (NumItems - 1)) {
StatusBarSetStatusString (L"Unknown Command");
return EFI_SUCCESS;
}
return (MenuItems[Index].Function ());
}
/**
Function to dispatch the correct function based on a control-based key (ctrl+o...)
@param[in] Key The pressed key.
@retval EFI_NOT_FOUND The key was not a valid control-based key
(an error was sent to the status bar).
@return EFI_SUCCESS.
**/
EFI_STATUS
MenuBarDispatchControlHotKey (
IN CONST EFI_INPUT_KEY *Key
)
{
if ((SCAN_CONTROL_Z < Key->UnicodeChar)
||(NULL == ControlBasedMenuFunctions[Key->UnicodeChar]))
{
return EFI_NOT_FOUND;
}
ControlBasedMenuFunctions[Key->UnicodeChar]();
return EFI_SUCCESS;
}
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