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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2726 | vana | 1 | /*++ |
| 2 | |||
| 3 | Copyright (c) 1998 Intel Corporation |
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| 4 | |||
| 5 | Module Name: |
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| 6 | |||
| 7 | console.c |
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| 8 | |||
| 9 | Abstract: |
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| 10 | |||
| 11 | |||
| 12 | |||
| 13 | |||
| 14 | Revision History |
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| 15 | |||
| 16 | --*/ |
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| 17 | |||
| 18 | #include "lib.h" |
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| 19 | |||
| 20 | |||
| 21 | |||
| 22 | VOID |
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| 23 | Output ( |
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| 24 | IN CHAR16 *Str |
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| 25 | ) |
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| 26 | // Write a string to the console at the current cursor location |
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| 27 | { |
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| 28 | ST->ConOut->OutputString (ST->ConOut, Str); |
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| 29 | } |
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| 30 | |||
| 31 | |||
| 32 | VOID |
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| 33 | Input ( |
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| 34 | IN CHAR16 *Prompt OPTIONAL, |
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| 35 | OUT CHAR16 *InStr, |
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| 36 | IN UINTN StrLen |
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| 37 | ) |
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| 38 | // Input a string at the current cursor location, for StrLen |
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| 39 | { |
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| 40 | IInput ( |
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| 41 | ST->ConOut, |
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| 42 | ST->ConIn, |
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| 43 | Prompt, |
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| 44 | InStr, |
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| 45 | StrLen |
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| 46 | ); |
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| 47 | } |
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| 48 | |||
| 49 | VOID |
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| 50 | IInput ( |
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| 51 | IN SIMPLE_TEXT_OUTPUT_INTERFACE *ConOut, |
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| 52 | IN SIMPLE_INPUT_INTERFACE *ConIn, |
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| 53 | IN CHAR16 *Prompt OPTIONAL, |
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| 54 | OUT CHAR16 *InStr, |
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| 55 | IN UINTN StrLen |
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| 56 | ) |
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| 57 | // Input a string at the current cursor location, for StrLen |
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| 58 | { |
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| 59 | EFI_INPUT_KEY Key; |
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| 60 | EFI_STATUS Status; |
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| 61 | UINTN Len; |
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| 62 | |||
| 63 | if (Prompt) { |
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| 64 | ConOut->OutputString (ConOut, Prompt); |
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| 65 | } |
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| 66 | |||
| 67 | Len = 0; |
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| 68 | for (; ;) { |
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| 69 | WaitForSingleEvent (ConIn->WaitForKey, 0); |
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| 70 | |||
| 71 | Status = ConIn->ReadKeyStroke(ConIn, &Key); |
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| 72 | if (EFI_ERROR(Status)) { |
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| 73 | DEBUG((D_ERROR, "Input: error return from ReadKey %x\n", Status)); |
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| 74 | break; |
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| 75 | } |
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| 76 | |||
| 77 | if (Key.UnicodeChar == '\n' || |
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| 78 | Key.UnicodeChar == '\r') { |
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| 79 | break; |
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| 80 | } |
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| 81 | |||
| 82 | if (Key.UnicodeChar == '\b') { |
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| 83 | if (Len) { |
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| 84 | ConOut->OutputString(ConOut, L"\b \b"); |
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| 85 | Len -= 1; |
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| 86 | } |
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| 87 | continue; |
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| 88 | } |
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| 89 | |||
| 90 | if (Key.UnicodeChar >= ' ') { |
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| 91 | if (Len < StrLen-1) { |
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| 92 | InStr[Len] = Key.UnicodeChar; |
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| 93 | |||
| 94 | InStr[Len+1] = 0; |
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| 95 | ConOut->OutputString(ConOut, &InStr[Len]); |
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| 96 | |||
| 97 | Len += 1; |
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| 98 | } |
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| 99 | continue; |
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| 100 | } |
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| 101 | } |
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| 102 | |||
| 103 | InStr[Len] = 0; |
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| 104 | } |