diff options
author | jcarsey <jcarsey@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-03-25 21:15:26 +0000 |
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committer | jcarsey <jcarsey@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-03-25 21:15:26 +0000 |
commit | 2442e62af75a0c5087fce3fb2040e26a485b0d31 (patch) | |
tree | 782b18c769653543a12bbd4af388860882c5b03b /ShellPkg/Library/UefiShellDebug1CommandsLib/EditInputBar.c | |
parent | 632820d1cf1ce7a18ef354255eaeae6fdbf383b9 (diff) | |
download | edk2-platforms-2442e62af75a0c5087fce3fb2040e26a485b0d31.tar.xz |
add Edit and Hexedit shared features.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11437 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ShellPkg/Library/UefiShellDebug1CommandsLib/EditInputBar.c')
-rw-r--r-- | ShellPkg/Library/UefiShellDebug1CommandsLib/EditInputBar.c | 330 |
1 files changed, 330 insertions, 0 deletions
diff --git a/ShellPkg/Library/UefiShellDebug1CommandsLib/EditInputBar.c b/ShellPkg/Library/UefiShellDebug1CommandsLib/EditInputBar.c new file mode 100644 index 0000000000..2c74e06741 --- /dev/null +++ b/ShellPkg/Library/UefiShellDebug1CommandsLib/EditInputBar.c @@ -0,0 +1,330 @@ +/** @file
+ Implements inputbar 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 "EditInputBar.h"
+#include "UefiShellDebug1CommandsLib.h"
+
+CHAR16 *mPrompt; // Input bar mPrompt string.
+CHAR16 *mReturnString; // The returned string.
+UINTN StringSize; // Size of mReturnString space size.
+
+/**
+ Initialize the input bar.
+**/
+VOID
+EFIAPI
+InputBarInit (
+ VOID
+ )
+{
+ mPrompt = NULL;
+ mReturnString = NULL;
+ StringSize = 0;
+}
+
+/**
+ Cleanup function for input bar.
+**/
+VOID
+EFIAPI
+InputBarCleanup (
+ VOID
+ )
+{
+ //
+ // free input bar's prompt and input string
+ //
+ SHELL_FREE_NON_NULL (mPrompt);
+ SHELL_FREE_NON_NULL (mReturnString);
+ mPrompt = NULL;
+ mReturnString = NULL;
+}
+
+/**
+ Display the prompt.
+ Do the requesting of input.
+
+ @param[in] LastColumn The last printable column.
+ @param[in] LastRow The last printable row.
+**/
+VOID
+EFIAPI
+InputBarPrintInput (
+ IN UINTN LastColumn,
+ IN UINTN LastRow
+ )
+{
+ UINTN Limit;
+ UINTN Size;
+ CHAR16 *Buffer;
+ UINTN Index;
+ UINTN mPromptLen;
+
+ mPromptLen = StrLen (mPrompt);
+ Limit = LastColumn - mPromptLen - 1;
+ Size = StrLen (mReturnString);
+
+ //
+ // check whether the mPrompt length and input length will
+ // exceed limit
+ //
+ if (Size <= Limit) {
+ Buffer = mReturnString;
+ } else {
+ Buffer = mReturnString + Size - Limit;
+ }
+
+ gST->ConOut->EnableCursor (gST->ConOut, FALSE);
+
+ ShellPrintEx (((INT32)mPromptLen), ((INT32)LastRow) - 4, L"%s", Buffer);
+ Size = StrLen (Buffer);
+
+ //
+ // print " " after mPrompt
+ //
+ for (Index = Size; Index < Limit; Index++) {
+ ShellPrintEx ((INT32)(mPromptLen + Size), ((INT32)LastRow) - 4, L" ");
+ }
+
+ gST->ConOut->EnableCursor (gST->ConOut, TRUE);
+ gST->ConOut->SetCursorPosition (gST->ConOut, Size + mPromptLen, LastRow - 4);
+}
+
+typedef struct {
+ UINT32 Foreground : 4;
+ UINT32 Background : 4;
+} INPUT_BAR_COLOR_ATTRIBUTES;
+
+typedef union {
+ INPUT_BAR_COLOR_ATTRIBUTES Colors;
+ UINTN Data;
+} INPUT_BAR_COLOR_UNION;
+
+
+/**
+ The refresh function for InputBar, it will wait for user input
+
+ @param[in] LastRow The last printable row.
+ @param[in] LastColumn The last printable column.
+
+ @retval EFI_SUCCESS The operation was successful.
+**/
+EFI_STATUS
+EFIAPI
+InputBarRefresh (
+ UINTN LastRow,
+ UINTN LastColumn
+ )
+{
+ INPUT_BAR_COLOR_UNION Orig;
+ INPUT_BAR_COLOR_UNION New;
+ EFI_INPUT_KEY Key;
+ UINTN Size;
+ EFI_STATUS Status;
+ BOOLEAN NoDisplay;
+ UINTN Limit;
+ UINTN mPromptLen;
+ UINTN EventIndex;
+ UINTN CursorRow;
+ UINTN CursorCol;
+
+ //
+ // variable initialization
+ //
+ Size = 0;
+ Status = EFI_SUCCESS;
+
+ //
+ // back up the old screen attributes
+ //
+ CursorCol = gST->ConOut->Mode->CursorColumn;
+ CursorRow = gST->ConOut->Mode->CursorRow;
+ Orig.Data = gST->ConOut->Mode->Attribute;
+ New.Colors.Foreground = Orig.Colors.Background;
+ New.Colors.Background = Orig.Colors.Foreground;
+
+ gST->ConOut->SetAttribute (gST->ConOut, New.Data);
+
+ //
+ // clear input bar
+ //
+ EditorClearLine (LastRow - 3, LastColumn, LastRow);
+
+ gST->ConOut->SetCursorPosition (gST->ConOut, 0, LastRow - 4);
+ ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN(STR_EDIT_LIBINPUTBAR_MAININPUTBAR), gShellDebug1HiiHandle, mPrompt);
+
+ //
+ // that's the maximum input length that can be displayed on screen
+ //
+ mPromptLen = StrLen (mPrompt);
+ Limit = LastColumn - mPromptLen;
+
+ //
+ // this is a selection mPrompt, cursor will stay in edit area
+ // actually this is for search , search/replace
+ //
+ if (StrStr (mPrompt, L"Yes/No")) {
+ NoDisplay = TRUE;
+ gST->ConOut->SetCursorPosition (gST->ConOut, CursorCol, CursorRow);
+ gST->ConOut->SetAttribute (gST->ConOut, Orig.Data);
+ } else {
+ NoDisplay = FALSE;
+ }
+ //
+ // wait for user input
+ //
+ for (;;) {
+ gBS->WaitForEvent (1, &gST->ConIn->WaitForKey, &EventIndex);
+ Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
+ if (EFI_ERROR (Status)) {
+ continue;
+ }
+ //
+ // pressed ESC
+ //
+ if (Key.ScanCode == SCAN_ESC) {
+ Size = 0;
+ Status = EFI_NOT_READY;
+ break;
+ }
+ //
+ // return pressed
+ //
+ if (Key.UnicodeChar == CHAR_LINEFEED || Key.UnicodeChar == CHAR_CARRIAGE_RETURN) {
+ break;
+ } else if (Key.UnicodeChar == CHAR_BACKSPACE) {
+ //
+ // backspace
+ //
+ if (Size > 0) {
+ Size--;
+ mReturnString[Size] = CHAR_NULL;
+ if (!NoDisplay) {
+
+ InputBarPrintInput (LastColumn, LastRow);
+
+ }
+ }
+ } else if (Key.UnicodeChar <= 127 && Key.UnicodeChar >= 32) {
+ //
+ // VALID ASCII char pressed
+ //
+ mReturnString[Size] = Key.UnicodeChar;
+
+ //
+ // should be less than specified length
+ //
+ if (Size >= StringSize) {
+ continue;
+ }
+
+ Size++;
+
+ mReturnString[Size] = CHAR_NULL;
+
+ if (!NoDisplay) {
+
+ InputBarPrintInput (LastColumn, LastRow);
+
+ } else {
+ //
+ // if just choose yes/no
+ //
+ break;
+ }
+
+ }
+ }
+
+ mReturnString[Size] = CHAR_NULL;
+
+
+ //
+ // restore screen attributes
+ //
+ gST->ConOut->SetCursorPosition (gST->ConOut, CursorCol, CursorRow);
+ gST->ConOut->SetAttribute (gST->ConOut, Orig.Data);
+
+ return Status;
+}
+
+/**
+ SetPrompt and wait for input.
+
+ @param[in] Str The prompt string.
+
+ @retval EFI_SUCCESS The operation was successful.
+ @retval EFI_OUT_OF_RESOURCES A memory allocation failed.
+**/
+EFI_STATUS
+EFIAPI
+InputBarSetPrompt (
+ IN CONST CHAR16 *Str
+ )
+{
+ //
+ // FREE the old mPrompt string
+ //
+ SHELL_FREE_NON_NULL (mPrompt);
+
+ mPrompt = CatSPrint (NULL, L"%s ", Str);
+ if (mPrompt == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Set the size of the string in characters.
+
+ @param[in] Size The max number of characters to accept.
+
+ @retval EFI_SUCCESS The operation was successful.
+ @retval EFI_OUT_OF_RESOURCES A memory allocation failed.
+**/
+EFI_STATUS
+EFIAPI
+InputBarSetStringSize (
+ UINTN Size
+ )
+{
+ //
+ // free the old ReturnStirng
+ //
+ SHELL_FREE_NON_NULL (mReturnString);
+
+ StringSize = Size;
+ mReturnString = AllocateZeroPool ((StringSize + 1) * sizeof(mReturnString[0]));
+ if (mReturnString == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Function to retrieve the input from the user.
+
+ @retval NULL No input has been received.
+ @return The string that was input.
+**/
+CONST CHAR16*
+EFIAPI
+InputBarGetString (
+ VOID
+ )
+{
+ return (mReturnString);
+}
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