michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "inLayoutUtils.h"
michael@0: 
michael@0: #include "nsIDocument.h"
michael@0: #include "nsIDOMDocument.h"
michael@0: #include "nsIContent.h"
michael@0: #include "nsIContentViewer.h"
michael@0: #include "nsPIDOMWindow.h"
michael@0: #include "nsIDocShell.h"
michael@0: #include "nsIPresShell.h"
michael@0: #include "nsPresContext.h"
michael@0: #include "mozilla/EventStateManager.h"
michael@0: #include "mozilla/dom/Element.h"
michael@0: 
michael@0: using namespace mozilla;
michael@0: 
michael@0: ///////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: nsIDOMWindow*
michael@0: inLayoutUtils::GetWindowFor(nsIDOMNode* aNode)
michael@0: {
michael@0:   nsCOMPtr<nsIDOMDocument> doc1;
michael@0:   aNode->GetOwnerDocument(getter_AddRefs(doc1));
michael@0:   return GetWindowFor(doc1.get());
michael@0: }
michael@0: 
michael@0: nsIDOMWindow*
michael@0: inLayoutUtils::GetWindowFor(nsIDOMDocument* aDoc)
michael@0: {
michael@0:   nsCOMPtr<nsIDOMWindow> window;
michael@0:   aDoc->GetDefaultView(getter_AddRefs(window));
michael@0:   return window;
michael@0: }
michael@0: 
michael@0: nsIPresShell* 
michael@0: inLayoutUtils::GetPresShellFor(nsISupports* aThing)
michael@0: {
michael@0:   nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(aThing);
michael@0: 
michael@0:   return window->GetDocShell()->GetPresShell();
michael@0: }
michael@0: 
michael@0: /*static*/
michael@0: nsIFrame*
michael@0: inLayoutUtils::GetFrameFor(nsIDOMElement* aElement)
michael@0: {
michael@0:   nsCOMPtr<nsIContent> content = do_QueryInterface(aElement);
michael@0:   return content->GetPrimaryFrame();
michael@0: }
michael@0: 
michael@0: EventStateManager*
michael@0: inLayoutUtils::GetEventStateManagerFor(nsIDOMElement *aElement)
michael@0: {
michael@0:   NS_PRECONDITION(aElement, "Passing in a null element is bad");
michael@0: 
michael@0:   nsCOMPtr<nsIDOMDocument> domDoc;
michael@0:   aElement->GetOwnerDocument(getter_AddRefs(domDoc));
michael@0:   nsCOMPtr<nsIDocument> doc = do_QueryInterface(domDoc);
michael@0: 
michael@0:   if (!doc) {
michael@0:     NS_WARNING("Could not get an nsIDocument!");
michael@0:     return nullptr;
michael@0:   }
michael@0: 
michael@0:   nsIPresShell *shell = doc->GetShell();
michael@0:   if (!shell)
michael@0:     return nullptr;
michael@0: 
michael@0:   return shell->GetPresContext()->EventStateManager();
michael@0: }
michael@0: 
michael@0: nsIDOMDocument*
michael@0: inLayoutUtils::GetSubDocumentFor(nsIDOMNode* aNode)
michael@0: {
michael@0:   nsCOMPtr<nsIContent> content = do_QueryInterface(aNode);
michael@0:   if (content) {
michael@0:     nsCOMPtr<nsIDocument> doc = content->GetDocument();
michael@0:     if (doc) {
michael@0:       nsCOMPtr<nsIDOMDocument> domdoc(do_QueryInterface(doc->GetSubDocumentFor(content)));
michael@0: 
michael@0:       return domdoc;
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   return nullptr;
michael@0: }
michael@0: 
michael@0: nsIDOMNode*
michael@0: inLayoutUtils::GetContainerFor(const nsIDocument& aDoc)
michael@0: {
michael@0:   nsPIDOMWindow* pwin = aDoc.GetWindow();
michael@0:   if (!pwin) {
michael@0:     return nullptr;
michael@0:   }
michael@0: 
michael@0:   nsCOMPtr<nsIDOMNode> node = do_QueryInterface(pwin->GetFrameElementInternal());
michael@0:   return node;
michael@0: }
michael@0: