1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/xul/nsContainerBoxObject.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,92 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "nsCOMPtr.h"
1.10 +#include "nsIContainerBoxObject.h"
1.11 +#include "nsIBrowserBoxObject.h"
1.12 +#include "nsIEditorBoxObject.h"
1.13 +#include "nsIIFrameBoxObject.h"
1.14 +#include "nsBoxObject.h"
1.15 +#include "nsIDocShell.h"
1.16 +#include "nsIContent.h"
1.17 +#include "nsIDocument.h"
1.18 +#include "nsIFrame.h"
1.19 +#include "nsSubDocumentFrame.h"
1.20 +
1.21 +/**
1.22 + * nsContainerBoxObject implements deprecated nsIBrowserBoxObject,
1.23 + * nsIEditorBoxObject and nsIIFrameBoxObject interfaces only because of the
1.24 + * backward compatibility.
1.25 + */
1.26 +
1.27 +class nsContainerBoxObject : public nsBoxObject,
1.28 + public nsIBrowserBoxObject,
1.29 + public nsIEditorBoxObject,
1.30 + public nsIIFrameBoxObject
1.31 +{
1.32 +public:
1.33 + NS_DECL_ISUPPORTS_INHERITED
1.34 + NS_DECL_NSICONTAINERBOXOBJECT
1.35 + NS_DECL_NSIBROWSERBOXOBJECT
1.36 + NS_DECL_NSIEDITORBOXOBJECT
1.37 + NS_DECL_NSIIFRAMEBOXOBJECT
1.38 +};
1.39 +
1.40 +NS_INTERFACE_MAP_BEGIN(nsContainerBoxObject)
1.41 + NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsIContainerBoxObject, nsIBrowserBoxObject)
1.42 + NS_INTERFACE_MAP_ENTRY(nsIBrowserBoxObject)
1.43 + NS_INTERFACE_MAP_ENTRY(nsIEditorBoxObject)
1.44 + NS_INTERFACE_MAP_ENTRY(nsIIFrameBoxObject)
1.45 +NS_INTERFACE_MAP_END_INHERITING(nsBoxObject)
1.46 +
1.47 +NS_IMPL_ADDREF_INHERITED(nsContainerBoxObject, nsBoxObject)
1.48 +NS_IMPL_RELEASE_INHERITED(nsContainerBoxObject, nsBoxObject)
1.49 +
1.50 +NS_IMETHODIMP nsContainerBoxObject::GetDocShell(nsIDocShell** aResult)
1.51 +{
1.52 + *aResult = nullptr;
1.53 +
1.54 + nsSubDocumentFrame *subDocFrame = do_QueryFrame(GetFrame(false));
1.55 + if (subDocFrame) {
1.56 + // Ok, the frame for mContent is an nsSubDocumentFrame, it knows how
1.57 + // to reach the docshell, so ask it...
1.58 +
1.59 + return subDocFrame->GetDocShell(aResult);
1.60 + }
1.61 +
1.62 + if (!mContent) {
1.63 + return NS_OK;
1.64 + }
1.65 +
1.66 + // No nsSubDocumentFrame available for mContent, try if there's a mapping
1.67 + // between mContent's document to mContent's subdocument.
1.68 +
1.69 + // XXXbz sXBL/XBL2 issue -- ownerDocument or currentDocument?
1.70 + nsIDocument *doc = mContent->GetDocument();
1.71 +
1.72 + if (!doc) {
1.73 + return NS_OK;
1.74 + }
1.75 +
1.76 + nsIDocument *sub_doc = doc->GetSubDocumentFor(mContent);
1.77 +
1.78 + if (!sub_doc) {
1.79 + return NS_OK;
1.80 + }
1.81 +
1.82 + NS_IF_ADDREF(*aResult = sub_doc->GetDocShell());
1.83 + return NS_OK;
1.84 +}
1.85 +
1.86 +nsresult
1.87 +NS_NewContainerBoxObject(nsIBoxObject** aResult)
1.88 +{
1.89 + *aResult = new nsContainerBoxObject();
1.90 + if (!*aResult)
1.91 + return NS_ERROR_OUT_OF_MEMORY;
1.92 + NS_ADDREF(*aResult);
1.93 + return NS_OK;
1.94 +}
1.95 +
