mirror of
https://github.com/classilla/tenfourfox.git
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268 lines
7.5 KiB
C++
268 lines
7.5 KiB
C++
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 "mozilla/dom/HTMLStyleElement.h"
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#include "mozilla/dom/HTMLStyleElementBinding.h"
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#include "nsGkAtoms.h"
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#include "nsStyleConsts.h"
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#include "nsIDOMStyleSheet.h"
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#include "nsIDocument.h"
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#include "nsUnicharUtils.h"
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#include "nsThreadUtils.h"
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#include "nsContentUtils.h"
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#include "nsStubMutationObserver.h"
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NS_IMPL_NS_NEW_HTML_ELEMENT(Style)
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namespace mozilla {
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namespace dom {
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HTMLStyleElement::HTMLStyleElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
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: nsGenericHTMLElement(aNodeInfo)
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{
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AddMutationObserver(this);
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}
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HTMLStyleElement::~HTMLStyleElement()
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{
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}
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NS_IMPL_CYCLE_COLLECTION_CLASS(HTMLStyleElement)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(HTMLStyleElement,
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nsGenericHTMLElement)
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tmp->nsStyleLinkElement::Traverse(cb);
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(HTMLStyleElement,
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nsGenericHTMLElement)
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tmp->nsStyleLinkElement::Unlink();
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_IMPL_ADDREF_INHERITED(HTMLStyleElement, Element)
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NS_IMPL_RELEASE_INHERITED(HTMLStyleElement, Element)
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// QueryInterface implementation for HTMLStyleElement
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NS_INTERFACE_TABLE_HEAD_CYCLE_COLLECTION_INHERITED(HTMLStyleElement)
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NS_INTERFACE_TABLE_INHERITED(HTMLStyleElement,
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nsIDOMHTMLStyleElement,
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nsIStyleSheetLinkingElement,
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nsIMutationObserver)
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NS_INTERFACE_TABLE_TAIL_INHERITING(nsGenericHTMLElement)
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NS_IMPL_ELEMENT_CLONE(HTMLStyleElement)
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NS_IMETHODIMP
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HTMLStyleElement::GetMozDisabled(bool* aDisabled)
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{
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NS_ENSURE_ARG_POINTER(aDisabled);
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*aDisabled = Disabled();
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return NS_OK;
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}
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bool
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HTMLStyleElement::Disabled()
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{
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CSSStyleSheet* ss = GetSheet();
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return ss && ss->Disabled();
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}
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NS_IMETHODIMP
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HTMLStyleElement::SetMozDisabled(bool aDisabled)
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{
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SetDisabled(aDisabled);
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return NS_OK;
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}
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void
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HTMLStyleElement::SetDisabled(bool aDisabled)
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{
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CSSStyleSheet* ss = GetSheet();
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if (ss) {
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ss->SetDisabled(aDisabled);
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}
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}
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NS_IMPL_STRING_ATTR(HTMLStyleElement, Media, media)
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NS_IMPL_BOOL_ATTR(HTMLStyleElement, Scoped, scoped)
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NS_IMPL_STRING_ATTR(HTMLStyleElement, Type, type)
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void
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HTMLStyleElement::CharacterDataChanged(nsIDocument* aDocument,
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nsIContent* aContent,
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CharacterDataChangeInfo* aInfo)
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{
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ContentChanged(aContent);
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}
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void
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HTMLStyleElement::ContentAppended(nsIDocument* aDocument,
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nsIContent* aContainer,
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nsIContent* aFirstNewContent,
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int32_t aNewIndexInContainer)
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{
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ContentChanged(aContainer);
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}
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void
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HTMLStyleElement::ContentInserted(nsIDocument* aDocument,
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nsIContent* aContainer,
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nsIContent* aChild,
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int32_t aIndexInContainer)
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{
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ContentChanged(aChild);
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}
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void
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HTMLStyleElement::ContentRemoved(nsIDocument* aDocument,
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nsIContent* aContainer,
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nsIContent* aChild,
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int32_t aIndexInContainer,
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nsIContent* aPreviousSibling)
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{
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ContentChanged(aChild);
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}
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void
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HTMLStyleElement::ContentChanged(nsIContent* aContent)
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{
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if (nsContentUtils::IsInSameAnonymousTree(this, aContent)) {
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UpdateStyleSheetInternal(nullptr, nullptr);
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}
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}
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nsresult
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HTMLStyleElement::BindToTree(nsIDocument* aDocument, nsIContent* aParent,
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nsIContent* aBindingParent,
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bool aCompileEventHandlers)
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{
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nsresult rv = nsGenericHTMLElement::BindToTree(aDocument, aParent,
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aBindingParent,
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aCompileEventHandlers);
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NS_ENSURE_SUCCESS(rv, rv);
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void (HTMLStyleElement::*update)() = &HTMLStyleElement::UpdateStyleSheetInternal;
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nsContentUtils::AddScriptRunner(NS_NewRunnableMethod(this, update));
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return rv;
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}
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void
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HTMLStyleElement::UnbindFromTree(bool aDeep, bool aNullParent)
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{
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nsCOMPtr<nsIDocument> oldDoc = GetUncomposedDoc();
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ShadowRoot* oldShadow = GetContainingShadow();
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nsGenericHTMLElement::UnbindFromTree(aDeep, aNullParent);
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if (oldShadow && GetContainingShadow()) {
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// The style is in a shadow tree and is still in the
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// shadow tree. Thus the sheets in the shadow DOM
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// do not need to be updated.
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return;
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}
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UpdateStyleSheetInternal(oldDoc, oldShadow);
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}
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nsresult
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HTMLStyleElement::AfterSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
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const nsAttrValue* aValue, bool aNotify)
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{
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if (aNameSpaceID == kNameSpaceID_None) {
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if (aName == nsGkAtoms::title ||
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aName == nsGkAtoms::media ||
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aName == nsGkAtoms::type) {
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UpdateStyleSheetInternal(nullptr, nullptr, true);
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} else if (aName == nsGkAtoms::scoped) {
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bool isScoped = aValue;
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UpdateStyleSheetScopedness(isScoped);
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}
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}
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return nsGenericHTMLElement::AfterSetAttr(aNameSpaceID, aName, aValue,
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aNotify);
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}
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NS_IMETHODIMP
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HTMLStyleElement::GetInnerHTML(nsAString& aInnerHTML)
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{
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if (!nsContentUtils::GetNodeTextContent(this, false, aInnerHTML, fallible)) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return NS_OK;
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}
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void
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HTMLStyleElement::SetInnerHTML(const nsAString& aInnerHTML,
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ErrorResult& aError)
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{
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SetEnableUpdates(false);
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aError = nsContentUtils::SetNodeTextContent(this, aInnerHTML, true);
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SetEnableUpdates(true);
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UpdateStyleSheetInternal(nullptr, nullptr);
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}
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already_AddRefed<nsIURI>
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HTMLStyleElement::GetStyleSheetURL(bool* aIsInline)
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{
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*aIsInline = true;
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return nullptr;
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}
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void
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HTMLStyleElement::GetStyleSheetInfo(nsAString& aTitle,
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nsAString& aType,
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nsAString& aMedia,
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bool* aIsScoped,
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bool* aIsAlternate)
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{
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aTitle.Truncate();
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aType.Truncate();
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aMedia.Truncate();
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*aIsAlternate = false;
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nsAutoString title;
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GetAttr(kNameSpaceID_None, nsGkAtoms::title, title);
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title.CompressWhitespace();
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aTitle.Assign(title);
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GetAttr(kNameSpaceID_None, nsGkAtoms::media, aMedia);
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// The HTML5 spec is formulated in terms of the CSSOM spec, which specifies
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// that media queries should be ASCII lowercased during serialization.
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nsContentUtils::ASCIIToLower(aMedia);
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GetAttr(kNameSpaceID_None, nsGkAtoms::type, aType);
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*aIsScoped = HasAttr(kNameSpaceID_None, nsGkAtoms::scoped);
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nsAutoString mimeType;
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nsAutoString notUsed;
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nsContentUtils::SplitMimeType(aType, mimeType, notUsed);
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if (!mimeType.IsEmpty() && !mimeType.LowerCaseEqualsLiteral("text/css")) {
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return;
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}
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// If we get here we assume that we're loading a css file, so set the
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// type to 'text/css'
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aType.AssignLiteral("text/css");
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}
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JSObject*
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HTMLStyleElement::WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return HTMLStyleElementBinding::Wrap(aCx, this, aGivenProto);
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}
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} // namespace dom
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} // namespace mozilla
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