This library wrapper explorer protocol and produce the file explorer library.

Cc: Liming Gao <[email protected]>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Eric Dong <[email protected]>
---
 .../DxeFileExplorerProtocol.c                      |  88 +++++++++++++++++++++
 .../DxeFileExplorerProtocol.inf                    |  41 ++++++++++
 .../DxeFileExplorerProtocol.uni                    | Bin 0 -> 1950 bytes
 3 files changed, 129 insertions(+)
 create mode 100644 
MdeModulePkg/Library/DxeFileExplorerProtocol/DxeFileExplorerProtocol.c
 create mode 100644 
MdeModulePkg/Library/DxeFileExplorerProtocol/DxeFileExplorerProtocol.inf
 create mode 100644 
MdeModulePkg/Library/DxeFileExplorerProtocol/DxeFileExplorerProtocol.uni

diff --git 
a/MdeModulePkg/Library/DxeFileExplorerProtocol/DxeFileExplorerProtocol.c 
b/MdeModulePkg/Library/DxeFileExplorerProtocol/DxeFileExplorerProtocol.c
new file mode 100644
index 0000000..1c22248
--- /dev/null
+++ b/MdeModulePkg/Library/DxeFileExplorerProtocol/DxeFileExplorerProtocol.c
@@ -0,0 +1,88 @@
+/** @file
+  Instance of file explorer Library based on gEfiFileExplorerProtocolGuid.
+
+  Implement the file explorer library instance by wrap the interface 
+  provided in the file explorer protocol. This protocol is defined as the 
internal
+  protocol related to this implementation, not in the public spec. So, this 
+  library instance is only for this code base.
+
+Copyright (c) 2009 - 2015, 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 <Protocol/FileExplorer.h>
+
+#include <Library/FileExplorerLib.h>
+#include <Library/DebugLib.h>
+
+EFI_FILE_EXPLORER_PROTOCOL *mProtocol = NULL;
+
+/**
+  The constructor function caches the pointer to file explorer protocol.
+  
+  The constructor function locates Print2 protocol from protocol database.
+  It will ASSERT() if that operation fails and it will always return 
EFI_SUCCESS. 
+
+  @param  ImageHandle   The firmware allocated handle for the EFI image.
+  @param  SystemTable   A pointer to the EFI System Table.
+  
+  @retval EFI_SUCCESS   The constructor always returns EFI_SUCCESS.
+
+**/
+EFI_STATUS
+EFIAPI
+FileExplorerConstructor (
+  IN EFI_HANDLE                ImageHandle,
+  IN EFI_SYSTEM_TABLE          *SystemTable
+  )
+{
+  EFI_STATUS                   Status;
+
+  Status = SystemTable->BootServices->LocateProtocol (
+                                        &gEfiFileExplorerProtocolGuid,
+                                        NULL,
+                                        (VOID**) &mProtocol
+                                        );
+  ASSERT_EFI_ERROR (Status);
+  ASSERT (mProtocol != NULL);
+
+  return Status;
+}
+
+/**
+  Choose a file in the specified directory. 
+
+  If user input NULL for the RootDirectory, will choose file in the system.
+
+  If user input *File != NULL, function will return the allocate device path
+  info for the choosed file, caller has to free the memory after use it.
+
+  @param  RootDirectory    Pointer to the root directory.
+  @param  FileType         The file type need to choose.
+  @param  ChooseHandler    Function pointer to the extra task need to do
+                           after choose one file.
+  @param  File             Return the device path for the last time chosed 
file.
+
+  @retval EFI_SUCESS             Choose file success.
+  @retval EFI_INVALID_PARAMETER  Both ChooseHandler and return device path are 
NULL
+                                 One of them must not NULL.
+  @retval Other errors           Choose file failed.
+**/
+EFI_STATUS
+EFIAPI
+ChooseFile (
+  IN  EFI_DEVICE_PATH_PROTOCOL  *RootDirectory,
+  IN  CHAR16                    *FileType,  OPTIONAL
+  IN  CHOOSE_HANDLER            ChooseHandler,  OPTIONAL
+  OUT EFI_DEVICE_PATH_PROTOCOL  **File  OPTIONAL
+  )
+{
+  return mProtocol->ChooseFile (RootDirectory, FileType, ChooseHandler, File);
+}
+
diff --git 
a/MdeModulePkg/Library/DxeFileExplorerProtocol/DxeFileExplorerProtocol.inf 
b/MdeModulePkg/Library/DxeFileExplorerProtocol/DxeFileExplorerProtocol.inf
new file mode 100644
index 0000000..a9b04c4
--- /dev/null
+++ b/MdeModulePkg/Library/DxeFileExplorerProtocol/DxeFileExplorerProtocol.inf
@@ -0,0 +1,41 @@
+## @file
+#  Library instance that implements File explorer Library class based on 
protocol gEfiFileExplorerProtocolGuid.
+#
+#  Copyright (c) 2009 - 2015, 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.
+#
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = DxeFileExplorerProtocol
+  MODULE_UNI_FILE                = DxeFileExplorerProtocol.uni
+  FILE_GUID                      = 6806C45F-13C4-4274-B8A3-055EF641A060
+  MODULE_TYPE                    = DXE_DRIVER
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = FileExplorerLib|DXE_DRIVER 
DXE_RUNTIME_DRIVER DXE_SAL_DRIVER DXE_SMM_DRIVER UEFI_APPLICATION UEFI_DRIVER
+  CONSTRUCTOR                    = FileExplorerConstructor
+
+[Sources]
+  DxeFileExplorerProtocol.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+
+[LibraryClasses]
+  BaseLib
+  DebugLib
+
+[Protocols]
+  gEfiFileExplorerProtocolGuid                         ## CONSUMES
+
+[Depex.common.DXE_DRIVER, Depex.common.DXE_RUNTIME_DRIVER, 
Depex.common.DXE_SAL_DRIVER, Depex.common.DXE_SMM_DRIVER]
+  gEfiFileExplorerProtocolGuid
\ No newline at end of file
diff --git 
a/MdeModulePkg/Library/DxeFileExplorerProtocol/DxeFileExplorerProtocol.uni 
b/MdeModulePkg/Library/DxeFileExplorerProtocol/DxeFileExplorerProtocol.uni
new file mode 100644
index 
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-- 
1.9.5.msysgit.1

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