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Added a GetHistoryState method to be use by session history to ask layout for

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the current document's state.


git-svn-id: svn://10.0.0.236/trunk@45215 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
nisheeth%netscape.com
1999-08-30 22:45:46 +00:00
parent ab1926c3ac
commit 4c052abfbd
3 changed files with 59 additions and 2 deletions
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28
mozilla/docshell/base/nsWebShell.cpp
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@@ -232,7 +232,7 @@ public:
// Document load api's
NS_IMETHOD GetDocumentLoader(nsIDocumentLoader*& aResult);
NS_IMETHOD LoadURL(const PRUnichar *aURLSpec,
nsIInputStream* aPostDataStream=nsnull,
nsIInputStream* aPostDataStream=nsnull,
PRBool aModifyHistory=PR_TRUE,
#ifdef NECKO
nsLoadFlags aType = nsIChannel::LOAD_NORMAL,
@@ -289,6 +289,7 @@ public:
nsIDOMWindow* aWindow, nsIDOMWindow** outPopup);
NS_IMETHOD FindWebShellWithName(const PRUnichar* aName, nsIWebShell*& aResult);
NS_IMETHOD FocusAvailable(nsIWebShell* aFocusedWebShell, PRBool& aFocusTaken);
NS_IMETHOD GetHistoryState(nsISupports** aLayoutHistoryState);
// nsIWebShellServices
NS_IMETHOD LoadDocument(const char* aURL,
@@ -2818,6 +2819,31 @@ nsWebShell::FocusAvailable(nsIWebShell* aFocusedWebShell, PRBool& aFocusTaken)
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetHistoryState(nsISupports** aLayoutHistoryState)
{
nsresult rv = NS_OK;
// XXX Need to think about what to do for framesets.
// For now, return an error if this webshell
// contains a frame or a frameset document.
if (mParent || mChildren.Count() > 0) {
return NS_ERROR_NOT_IMPLEMENTED;
}
// Ask the pres shell for the history state
if (mContentViewer) {
nsCOMPtr<nsIDocumentViewer> docv = do_QueryInterface(mContentViewer);
if (nsnull != docv) {
nsCOMPtr<nsIPresShell> shell;
rv = docv->GetPresShell(*getter_AddRefs(shell));
if (NS_SUCCEEDED(rv)) {
rv = shell->GetHistoryState((nsILayoutHistoryState**) aLayoutHistoryState);
}
}
}
return rv;
}
//----------------------------------------------------------------------
// Web Shell Services API