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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "mozilla/dom/HTMLStyleElement.h"
#include "mozilla/dom/HTMLStyleElementBinding.h"
#include "nsGkAtoms.h"
#include "nsStyleConsts.h"
#include "nsIDOMStyleSheet.h"
#include "nsIDocument.h"
#include "nsUnicharUtils.h"
#include "nsThreadUtils.h"
#include "nsContentUtils.h"
#include "nsStubMutationObserver.h"
NS_IMPL_NS_NEW_HTML_ELEMENT(Style)
namespace mozilla {
namespace dom {
HTMLStyleElement::HTMLStyleElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
: nsGenericHTMLElement(aNodeInfo)
{
AddMutationObserver(this);
}
HTMLStyleElement::~HTMLStyleElement()
{
}
NS_IMPL_CYCLE_COLLECTION_CLASS(HTMLStyleElement)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(HTMLStyleElement,
nsGenericHTMLElement)
tmp->nsStyleLinkElement::Traverse(cb);
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(HTMLStyleElement,
nsGenericHTMLElement)
tmp->nsStyleLinkElement::Unlink();
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_ADDREF_INHERITED(HTMLStyleElement, Element)
NS_IMPL_RELEASE_INHERITED(HTMLStyleElement, Element)
// QueryInterface implementation for HTMLStyleElement
NS_INTERFACE_TABLE_HEAD_CYCLE_COLLECTION_INHERITED(HTMLStyleElement)
NS_INTERFACE_TABLE_INHERITED(HTMLStyleElement,
nsIDOMHTMLStyleElement,
nsIStyleSheetLinkingElement,
nsIMutationObserver)
NS_INTERFACE_TABLE_TAIL_INHERITING(nsGenericHTMLElement)
NS_IMPL_ELEMENT_CLONE(HTMLStyleElement)
NS_IMETHODIMP
HTMLStyleElement::GetMozDisabled(bool* aDisabled)
{
NS_ENSURE_ARG_POINTER(aDisabled);
*aDisabled = Disabled();
return NS_OK;
}
bool
HTMLStyleElement::Disabled() const
{
StyleSheet* ss = GetSheet();
return ss && ss->Disabled();
}
NS_IMETHODIMP
HTMLStyleElement::SetMozDisabled(bool aDisabled)
{
SetDisabled(aDisabled);
return NS_OK;
}
void
HTMLStyleElement::SetDisabled(bool aDisabled)
{
if (StyleSheet* ss = GetSheet()) {
ss->SetDisabled(aDisabled);
}
}
NS_IMPL_STRING_ATTR(HTMLStyleElement, Media, media)
NS_IMPL_BOOL_ATTR(HTMLStyleElement, Scoped, scoped)
NS_IMPL_STRING_ATTR(HTMLStyleElement, Type, type)
void
HTMLStyleElement::CharacterDataChanged(nsIDocument* aDocument,
nsIContent* aContent,
CharacterDataChangeInfo* aInfo)
{
ContentChanged(aContent);
}
void
HTMLStyleElement::ContentAppended(nsIDocument* aDocument,
nsIContent* aContainer,
nsIContent* aFirstNewContent,
int32_t aNewIndexInContainer)
{
ContentChanged(aContainer);
}
void
HTMLStyleElement::ContentInserted(nsIDocument* aDocument,
nsIContent* aContainer,
nsIContent* aChild,
int32_t aIndexInContainer)
{
ContentChanged(aChild);
}
void
HTMLStyleElement::ContentRemoved(nsIDocument* aDocument,
nsIContent* aContainer,
nsIContent* aChild,
int32_t aIndexInContainer,
nsIContent* aPreviousSibling)
{
ContentChanged(aChild);
}
void
HTMLStyleElement::ContentChanged(nsIContent* aContent)
{
if (nsContentUtils::IsInSameAnonymousTree(this, aContent)) {
UpdateStyleSheetInternal(nullptr, nullptr);
}
}
nsresult
HTMLStyleElement::BindToTree(nsIDocument* aDocument, nsIContent* aParent,
nsIContent* aBindingParent,
bool aCompileEventHandlers)
{
nsresult rv = nsGenericHTMLElement::BindToTree(aDocument, aParent,
aBindingParent,
aCompileEventHandlers);
NS_ENSURE_SUCCESS(rv, rv);
void (HTMLStyleElement::*update)() = &HTMLStyleElement::UpdateStyleSheetInternal;
nsContentUtils::AddScriptRunner(NewRunnableMethod(this, update));
return rv;
}
void
HTMLStyleElement::UnbindFromTree(bool aDeep, bool aNullParent)
{
nsCOMPtr<nsIDocument> oldDoc = GetUncomposedDoc();
ShadowRoot* oldShadow = GetContainingShadow();
nsGenericHTMLElement::UnbindFromTree(aDeep, aNullParent);
if (oldShadow && GetContainingShadow()) {
// The style is in a shadow tree and is still in the
// shadow tree. Thus the sheets in the shadow DOM
// do not need to be updated.
return;
}
UpdateStyleSheetInternal(oldDoc, oldShadow);
}
nsresult
HTMLStyleElement::AfterSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
const nsAttrValue* aValue,
const nsAttrValue* aOldValue, bool aNotify)
{
if (aNameSpaceID == kNameSpaceID_None) {
if (aName == nsGkAtoms::title ||
aName == nsGkAtoms::media ||
aName == nsGkAtoms::type) {
UpdateStyleSheetInternal(nullptr, nullptr, true);
} else if (aName == nsGkAtoms::scoped) {
bool isScoped = aValue;
UpdateStyleSheetScopedness(isScoped);
}
}
return nsGenericHTMLElement::AfterSetAttr(aNameSpaceID, aName, aValue,
aOldValue, aNotify);
}
NS_IMETHODIMP
HTMLStyleElement::GetInnerHTML(nsAString& aInnerHTML)
{
if (!nsContentUtils::GetNodeTextContent(this, false, aInnerHTML, fallible)) {
return NS_ERROR_OUT_OF_MEMORY;
}
return NS_OK;
}
void
HTMLStyleElement::SetInnerHTML(const nsAString& aInnerHTML,
ErrorResult& aError)
{
SetEnableUpdates(false);
aError = nsContentUtils::SetNodeTextContent(this, aInnerHTML, true);
SetEnableUpdates(true);
UpdateStyleSheetInternal(nullptr, nullptr);
}
already_AddRefed<nsIURI>
HTMLStyleElement::GetStyleSheetURL(bool* aIsInline)
{
*aIsInline = true;
return nullptr;
}
void
HTMLStyleElement::GetStyleSheetInfo(nsAString& aTitle,
nsAString& aType,
nsAString& aMedia,
bool* aIsScoped,
bool* aIsAlternate,
bool* aIsExplicitlyEnabled)
{
aTitle.Truncate();
aType.Truncate();
aMedia.Truncate();
*aIsAlternate = false;
*aIsExplicitlyEnabled = false;
nsAutoString title;
GetAttr(kNameSpaceID_None, nsGkAtoms::title, title);
title.CompressWhitespace();
aTitle.Assign(title);
GetAttr(kNameSpaceID_None, nsGkAtoms::media, aMedia);
// The HTML5 spec is formulated in terms of the CSSOM spec, which specifies
// that media queries should be ASCII lowercased during serialization.
nsContentUtils::ASCIIToLower(aMedia);
GetAttr(kNameSpaceID_None, nsGkAtoms::type, aType);
*aIsScoped = HasAttr(kNameSpaceID_None, nsGkAtoms::scoped);
nsAutoString mimeType;
nsAutoString notUsed;
nsContentUtils::SplitMimeType(aType, mimeType, notUsed);
if (!mimeType.IsEmpty() && !mimeType.LowerCaseEqualsLiteral("text/css")) {
return;
}
// If we get here we assume that we're loading a css file, so set the
// type to 'text/css'
aType.AssignLiteral("text/css");
}
JSObject*
HTMLStyleElement::WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto)
{
return HTMLStyleElementBinding::Wrap(aCx, this, aGivenProto);
}
} // namespace dom
} // namespace mozilla
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