166 lines
3.5 KiB
C
166 lines
3.5 KiB
C
/*++
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Copyright (c) 1999 Intel Corporation
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Module Name:
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libInputBar.c
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Abstract:
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Defines the Input Bar data type - the interactive query that multiplexes
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with the Status Bar.
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--*/
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#ifndef _LIB_INPUT_BAR
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#define _LIB_INPUT_BAR
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#include "libMisc.h"
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STATIC EFI_STATUS MainInputBarInit (VOID);
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STATIC EFI_STATUS MainInputBarCleanup (VOID);
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STATIC EFI_STATUS MainInputBarRefresh (VOID);
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STATIC EFI_STATUS MainInputBarHide (VOID);
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STATIC EFI_STATUS MainInputBarSetPrompt (CHAR16*);
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STATIC EFI_STATUS MainInputBarSetStringSize (UINTN);
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EE_INPUT_BAR MainInputBar = {
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NULL,
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NULL,
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0,
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MainInputBarInit,
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MainInputBarCleanup,
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MainInputBarRefresh,
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MainInputBarHide,
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MainInputBarSetPrompt,
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MainInputBarSetStringSize
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};
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STATIC
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EFI_STATUS
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MainInputBarInit (
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VOID
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)
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{
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/* Nothing to do... */
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return EFI_SUCCESS;
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}
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STATIC
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EFI_STATUS
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MainInputBarCleanup (
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VOID
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)
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{
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MainInputBar.Hide ();
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if (MainInputBar.Prompt != NULL ) {
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FreePool ((VOID*)MainInputBar.Prompt);
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}
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return EFI_SUCCESS;
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}
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STATIC
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EFI_STATUS
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MainInputBarRefresh (
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VOID
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)
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{
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EE_COLOR_UNION Orig,New;
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EFI_INPUT_KEY Key;
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UINTN Column;
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UINTN Size = 0;
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EFI_STATUS Status = EFI_SUCCESS;
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Orig = MainEditor.ColorAttributes;
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New.Colors.Foreground = Orig.Colors.Background;
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New.Colors.Background = Orig.Colors.Foreground;
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Out->SetAttribute (Out,New.Data);
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MainInputBar.Hide();
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Out->SetCursorPosition(Out,0,INPUT_BAR_LOCATION);
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Print(L"%s ",MainInputBar.Prompt);
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for ( ;; ) {
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WaitForSingleEvent(In->WaitForKey,0);
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Status = In->ReadKeyStroke(In,&Key);
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if ( EFI_ERROR(Status) ) {
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continue;
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}
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if ( Key.ScanCode == SCAN_CODE_ESC ) {
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Size = 0;
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FreePool(MainInputBar.ReturnString);
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Status = EFI_NOT_READY;
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break;
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}
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if ( Key.UnicodeChar == CHAR_LF || Key.UnicodeChar == CHAR_CR ) {
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break;
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} else if (Key.UnicodeChar == CHAR_BS) {
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if (Size > 0) {
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Size--;
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Column = Out->Mode->CursorColumn - 1;
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PrintAt(Column,INPUT_BAR_LOCATION,L" ");
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Out->SetCursorPosition(Out,Column,INPUT_BAR_LOCATION);
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}
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} else {
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if ( Size < MainInputBar.StringSize) {
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MainInputBar.ReturnString[Size] = Key.UnicodeChar;
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Size++;
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Print(L"%c",Key.UnicodeChar);
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}
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}
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}
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MainInputBar.StringSize = Size;
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if ( Size > 0 ) {
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MainInputBar.ReturnString[Size] = 0;
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}
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Out->SetAttribute (Out,Orig.Data);
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MainEditor.StatusBar->Refresh();
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return Status;
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}
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STATIC
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EFI_STATUS
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MainInputBarHide (
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VOID
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)
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{
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MainEditor.FileBuffer->ClearLine(INPUT_BAR_LOCATION);
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return EFI_SUCCESS;
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}
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STATIC
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EFI_STATUS
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MainInputBarSetPrompt (
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IN CHAR16* Str
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)
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{
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if ( MainInputBar.Prompt != NULL && MainInputBar.Prompt != (CHAR16*)BAD_POINTER) {
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FreePool (MainInputBar.Prompt);
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}
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MainInputBar.Prompt = PoolPrint (Str);
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return EFI_SUCCESS;
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}
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STATIC
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EFI_STATUS
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MainInputBarSetStringSize (
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UINTN Size
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)
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{
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/* if ( MainInputBar.ReturnString != NULL && MainInputBar.ReturnString != (CHAR16*)BAD_POINTER) {
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* FreePool ( MainInputBar.ReturnString );
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* } */
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MainInputBar.StringSize = Size;
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MainInputBar.ReturnString = AllocatePool (Size+6);
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return EFI_SUCCESS;
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}
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#endif /* _LIB_INPUT_BAR */
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