forked from mirrors/gecko-dev
71 lines
1.8 KiB
C++
71 lines
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "inLayoutUtils.h"
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#include "nsIDocument.h"
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#include "nsIDOMDocument.h"
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#include "nsIContent.h"
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#include "nsIContentViewer.h"
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#include "nsPIDOMWindow.h"
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#include "nsIDocShell.h"
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#include "nsIPresShell.h"
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#include "nsPresContext.h"
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#include "mozilla/EventStateManager.h"
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#include "mozilla/dom/Element.h"
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using namespace mozilla;
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///////////////////////////////////////////////////////////////////////////////
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EventStateManager*
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inLayoutUtils::GetEventStateManagerFor(nsIDOMElement *aElement)
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{
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NS_PRECONDITION(aElement, "Passing in a null element is bad");
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nsCOMPtr<nsIDOMDocument> domDoc;
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aElement->GetOwnerDocument(getter_AddRefs(domDoc));
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nsCOMPtr<nsIDocument> doc = do_QueryInterface(domDoc);
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if (!doc) {
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NS_WARNING("Could not get an nsIDocument!");
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return nullptr;
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}
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nsIPresShell *shell = doc->GetShell();
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if (!shell)
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return nullptr;
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return shell->GetPresContext()->EventStateManager();
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}
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nsIDOMDocument*
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inLayoutUtils::GetSubDocumentFor(nsIDOMNode* aNode)
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{
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nsCOMPtr<nsIContent> content = do_QueryInterface(aNode);
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if (content) {
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nsCOMPtr<nsIDocument> doc = content->GetComposedDoc();
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if (doc) {
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nsCOMPtr<nsIDOMDocument> domdoc(do_QueryInterface(doc->GetSubDocumentFor(content)));
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return domdoc;
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}
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}
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return nullptr;
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}
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nsIDOMNode*
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inLayoutUtils::GetContainerFor(const nsIDocument& aDoc)
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{
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nsPIDOMWindowOuter* pwin = aDoc.GetWindow();
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if (!pwin) {
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return nullptr;
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}
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nsCOMPtr<nsIDOMNode> node = do_QueryInterface(pwin->GetFrameElementInternal());
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return node;
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}
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