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audk
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Refine question value update logic. 

Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14673 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Eric Dong 2013-09-16 07:57:06 +00:00 committed by ydong10
parent e84f07b5fc
commit e6cc2ab38e
1 changed files with 38 additions and 5 deletions
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41
MdeModulePkg/Universal/SetupBrowserDxe/Presentation.c
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@ -1618,9 +1618,6 @@ ProcessUserInput (
CopyMem (&Statement->HiiValue, &UserInput->InputValue, sizeof (EFI_HII_VALUE));
break;
}
if (Statement->Operand != EFI_IFR_PASSWORD_OP) {
SetQuestionValue (gCurrentSelection->FormSet, gCurrentSelection->Form, Statement, GetSetValueWithEditBuffer);
}
break;
}
}
@ -2012,6 +2009,8 @@ ProcessCallBackFunction (
BOOLEAN NeedExit;
LIST_ENTRY *Link;
BROWSER_SETTING_SCOPE SettingLevel;
EFI_IFR_TYPE_VALUE BackUpValue;
UINT8 *BackUpBuffer;
ConfigAccess = Selection->FormSet->ConfigAccess;
SubmitFormIsRequired = FALSE;
@ -2020,6 +2019,7 @@ ProcessCallBackFunction (
NeedExit = FALSE;
Status = EFI_SUCCESS;
ActionRequest = EFI_BROWSER_ACTION_REQUEST_NONE;
BackUpBuffer = NULL;
if (ConfigAccess == NULL) {
return EFI_SUCCESS;
@ -2059,6 +2059,17 @@ ProcessCallBackFunction (
TypeValue = (EFI_IFR_TYPE_VALUE *) Statement->BufferValue;
}
//
// If EFI_BROWSER_ACTION_CHANGING type, back up the new question value.
//
if (Action == EFI_BROWSER_ACTION_CHANGING) {
if (HiiValue->Type == EFI_IFR_TYPE_BUFFER) {
BackUpBuffer = AllocateCopyPool(Statement->StorageWidth + sizeof(CHAR16), Statement->BufferValue);
} else {
CopyMem (&BackUpValue, &HiiValue->Value, sizeof (EFI_IFR_TYPE_VALUE));
}
}
ActionRequest = EFI_BROWSER_ACTION_REQUEST_NONE;
Status = ConfigAccess->Callback (
ConfigAccess,
@ -2125,11 +2136,27 @@ ProcessCallBackFunction (
SetQuestionValue(Selection->FormSet, Selection->Form, Statement, GetSetValueWithEditBuffer);
}
} else {
//
// If the callback returns EFI_UNSUPPORTED for EFI_BROWSER_ACTION_CHANGING,
// then the browser will use the value passed to Callback() and ignore the
// value returned by Callback().
//
if (Action == EFI_BROWSER_ACTION_CHANGING && Status == EFI_UNSUPPORTED) {
if (HiiValue->Type == EFI_IFR_TYPE_BUFFER) {
CopyMem (Statement->BufferValue, BackUpBuffer, Statement->StorageWidth + sizeof(CHAR16));
} else {
CopyMem (&HiiValue->Value, &BackUpValue, sizeof (EFI_IFR_TYPE_VALUE));
}
SetQuestionValue(Selection->FormSet, Selection->Form, Statement, GetSetValueWithEditBuffer);
}
//
// According the spec, return fail from call back of "changing" and
// "retrieve", should restore the question's value.
//
if (Action == EFI_BROWSER_ACTION_CHANGING || Action == EFI_BROWSER_ACTION_RETRIEVE) {
if ((Action == EFI_BROWSER_ACTION_CHANGING && Status != EFI_UNSUPPORTED) ||
Action == EFI_BROWSER_ACTION_RETRIEVE) {
GetQuestionValue(Selection->FormSet, Selection->Form, Statement, GetSetValueWithEditBuffer);
}
@ -2140,6 +2167,10 @@ ProcessCallBackFunction (
Status = EFI_SUCCESS;
}
}
if (BackUpBuffer != NULL) {
FreePool (BackUpBuffer);
}
}
if (SubmitFormIsRequired && !SkipSaveOrDiscard) {
@ -2399,6 +2430,8 @@ SetupBrowser (
if (!EFI_ERROR (Status) && Statement->Operand != EFI_IFR_REF_OP) {
ProcessCallBackFunction(Selection, Statement, EFI_BROWSER_ACTION_CHANGED, FALSE);
}
} else if (Statement->Operand != EFI_IFR_PASSWORD_OP) {
SetQuestionValue (gCurrentSelection->FormSet, gCurrentSelection->Form, Statement, GetSetValueWithEditBuffer);
}
}