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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "DocumentOrShadowRoot.h"
#include "mozilla/dom/StyleSheetList.h"
#include "nsDocument.h"
#include "nsFocusManager.h"
#include "ShadowRoot.h"
#include "XULDocument.h"
class nsINode;
class nsIDocument;
class ShadowRoot;
namespace mozilla {
namespace dom {
DocumentOrShadowRoot::DocumentOrShadowRoot(mozilla::dom::ShadowRoot* aShadowRoot)
: mAsNode(aShadowRoot)
, mKind(Kind::ShadowRoot)
{
MOZ_ASSERT(mAsNode);
}
DocumentOrShadowRoot::DocumentOrShadowRoot(nsIDocument* aDoc)
: mAsNode(aDoc)
, mKind(Kind::Document)
{
MOZ_ASSERT(mAsNode);
}
StyleSheetList&
DocumentOrShadowRoot::EnsureDOMStyleSheets()
{
if (!mDOMStyleSheets) {
mDOMStyleSheets = new StyleSheetList(*this);
}
return *mDOMStyleSheets;
}
Element*
DocumentOrShadowRoot::GetElementById(const nsAString& aElementId)
{
if (MOZ_UNLIKELY(aElementId.IsEmpty())) {
nsContentUtils::ReportEmptyGetElementByIdArg(AsNode().OwnerDoc());
return nullptr;
}
if (nsIdentifierMapEntry* entry = mIdentifierMap.GetEntry(aElementId)) {
if (Element* el = entry->GetIdElement()) {
return el;
}
}
if (MOZ_UNLIKELY(mKind == Kind::Document &&
static_cast<nsIDocument&>(AsNode()).IsXULDocument())) {
return static_cast<XULDocument&>(AsNode()).GetRefById(aElementId);
}
return nullptr;
}
already_AddRefed<nsContentList>
DocumentOrShadowRoot::GetElementsByTagNameNS(const nsAString& aNamespaceURI,
const nsAString& aLocalName)
{
ErrorResult rv;
RefPtr<nsContentList> list =
GetElementsByTagNameNS(aNamespaceURI, aLocalName, rv);
if (rv.Failed()) {
return nullptr;
}
return list.forget();
}
already_AddRefed<nsContentList>
DocumentOrShadowRoot::GetElementsByTagNameNS(const nsAString& aNamespaceURI,
const nsAString& aLocalName,
mozilla::ErrorResult& aResult)
{
int32_t nameSpaceId = kNameSpaceID_Wildcard;
if (!aNamespaceURI.EqualsLiteral("*")) {
aResult =
nsContentUtils::NameSpaceManager()->RegisterNameSpace(aNamespaceURI,
nameSpaceId);
if (aResult.Failed()) {
return nullptr;
}
}
NS_ASSERTION(nameSpaceId != kNameSpaceID_Unknown, "Unexpected namespace ID!");
return NS_GetContentList(&AsNode(), nameSpaceId, aLocalName);
}
already_AddRefed<nsContentList>
DocumentOrShadowRoot::GetElementsByClassName(const nsAString& aClasses)
{
return nsContentUtils::GetElementsByClassName(&AsNode(), aClasses);
}
nsIContent*
DocumentOrShadowRoot::Retarget(nsIContent* aContent) const
{
for (nsIContent* cur = aContent;
cur;
cur = cur->GetContainingShadowHost()) {
if (cur->SubtreeRoot() == &AsNode()) {
return cur;
}
}
return nullptr;
}
Element*
DocumentOrShadowRoot::GetRetargetedFocusedElement()
{
if (nsCOMPtr<nsPIDOMWindowOuter> window = AsNode().OwnerDoc()->GetWindow()) {
nsCOMPtr<nsPIDOMWindowOuter> focusedWindow;
nsIContent* focusedContent =
nsFocusManager::GetFocusedDescendant(window,
false,
getter_AddRefs(focusedWindow));
// be safe and make sure the element is from this document
if (focusedContent && focusedContent->OwnerDoc() == AsNode().OwnerDoc()) {
if (focusedContent->ChromeOnlyAccess()) {
focusedContent = focusedContent->FindFirstNonChromeOnlyAccessContent();
}
if (focusedContent) {
if (!nsDocument::IsWebComponentsEnabled(focusedContent)) {
return focusedContent->AsElement();
}
if (nsIContent* retarget = Retarget(focusedContent)) {
return retarget->AsElement();
}
}
}
}
return nullptr;
}
}
}
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