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Bug 55988 + 64415: Hidden inputs and buttons save state in session history, r=jst@netscape.com, sr=vidur@netscape.com

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git-svn-id: svn://10.0.0.236/trunk@86275 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
pollmann%netscape.com
2001-02-06 01:31:18 +00:00
parent 554bf9f199
commit 0ac44b8f3d
6 changed files with 166 additions and 18 deletions
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67
mozilla/layout/forms/nsGfxButtonControlFrame.cpp
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@@ -28,6 +28,10 @@
#include "nsISupportsArray.h"
#include "nsINameSpaceManager.h"
// Saving PresState
#include "nsIPresState.h"
#include "nsIHTMLContent.h"
const nscoord kSuggestedNotSet = -1;
nsGfxButtonControlFrame::nsGfxButtonControlFrame()
@@ -456,14 +460,17 @@ nsGfxButtonControlFrame::CreateFrameFor(nsIPresContext* aPresContext,
NS_IMETHODIMP
nsGfxButtonControlFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr)
{
NS_PRECONDITION(0 != aInstancePtr, "null ptr");
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
} else if (aIID.Equals(NS_GET_IID(nsIAnonymousContentCreator))) {
*aInstancePtr = (void*)(nsIAnonymousContentCreator*) this;
return NS_OK;
NS_ENSURE_ARG_POINTER(aInstancePtr);
if (aIID.Equals(NS_GET_IID(nsIAnonymousContentCreator))) {
*aInstancePtr = NS_STATIC_CAST(nsIAnonymousContentCreator*, this);
} else if (aIID.Equals(NS_GET_IID(nsIStatefulFrame))) {
*aInstancePtr = NS_STATIC_CAST(nsIStatefulFrame*, this);
} else {
return nsHTMLButtonControlFrame::QueryInterface(aIID, aInstancePtr);
}
return nsHTMLButtonControlFrame::QueryInterface(aIID, aInstancePtr);
return NS_OK;
}
// Initially we hardcoded the default strings here.
@@ -665,4 +672,50 @@ nsGfxButtonControlFrame::HandleEvent(nsIPresContext* aPresContext,
return NS_OK;
}
NS_IMETHODIMP
nsGfxButtonControlFrame::GetStateType(nsIPresContext* aPresContext, nsIStatefulFrame::StateType* aStateType)
{
*aStateType = nsIStatefulFrame::eTextType;
return NS_OK;
}
NS_IMETHODIMP
nsGfxButtonControlFrame::SaveState(nsIPresContext* aPresContext, nsIPresState** aState)
{
NS_ENSURE_ARG_POINTER(aState);
// Get the value string
nsAutoString stateString;
nsresult res = GetProperty(nsHTMLAtoms::value, stateString);
NS_ENSURE_SUCCESS(res, res);
// Compare to default value, and only save if needed (Bug 62713)
nsAutoString defaultStateString;
nsCOMPtr<nsIHTMLContent> formControl(do_QueryInterface(mContent));
if (formControl) {
formControl->GetAttribute(kNameSpaceID_None, nsHTMLAtoms::value, defaultStateString);
}
if (! stateString.Equals(defaultStateString)) {
// Construct a pres state and store value in it.
res = NS_NewPresState(aState);
NS_ENSURE_SUCCESS(res, res);
res = (*aState)->SetStateProperty(NS_LITERAL_STRING("value"), stateString);
}
return res;
}
NS_IMETHODIMP
nsGfxButtonControlFrame::RestoreState(nsIPresContext* aPresContext, nsIPresState* aState)
{
NS_ENSURE_ARG_POINTER(aState);
// Set the value to the stored state.
nsAutoString stateString;
nsresult res = aState->GetStateProperty(NS_LITERAL_STRING("value"), stateString);
NS_ENSURE_SUCCESS(res, res);
return SetProperty(aPresContext, nsHTMLAtoms::value, stateString);
}