Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 195 insertions, 0 deletions

diff --git a/dom/html/HTMLStyleElement.cpp b/dom/html/HTMLStyleElement.cpp
new file mode 100644
index 0000000000..28aa1edccd
--- /dev/null
+++ b/dom/html/HTMLStyleElement.cpp
@@ -0,0 +1,195 @@
+/* -*- 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 "mozilla/dom/HTMLStyleElement.h"
+#include "mozilla/dom/HTMLStyleElementBinding.h"
+#include "nsGkAtoms.h"
+#include "nsStyleConsts.h"
+#include "mozilla/dom/Document.h"
+#include "mozilla/dom/ReferrerInfo.h"
+#include "nsUnicharUtils.h"
+#include "nsThreadUtils.h"
+#include "nsContentUtils.h"
+#include "nsStubMutationObserver.h"
+
+NS_IMPL_NS_NEW_HTML_ELEMENT(Style)
+
+namespace mozilla::dom {
+
+HTMLStyleElement::HTMLStyleElement(
+    already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
+    : nsGenericHTMLElement(std::move(aNodeInfo)) {
+  AddMutationObserver(this);
+}
+
+HTMLStyleElement::~HTMLStyleElement() = default;
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(HTMLStyleElement)
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(HTMLStyleElement,
+                                                  nsGenericHTMLElement)
+  tmp->LinkStyle::Traverse(cb);
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(HTMLStyleElement,
+                                                nsGenericHTMLElement)
+  tmp->LinkStyle::Unlink();
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+
+NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED(HTMLStyleElement,
+                                             nsGenericHTMLElement,
+                                             nsIMutationObserver)
+
+NS_IMPL_ELEMENT_CLONE(HTMLStyleElement)
+
+bool HTMLStyleElement::Disabled() const {
+  StyleSheet* ss = GetSheet();
+  return ss && ss->Disabled();
+}
+
+void HTMLStyleElement::SetDisabled(bool aDisabled) {
+  if (StyleSheet* ss = GetSheet()) {
+    ss->SetDisabled(aDisabled);
+  }
+}
+
+void HTMLStyleElement::CharacterDataChanged(nsIContent* aContent,
+                                            const CharacterDataChangeInfo&) {
+  ContentChanged(aContent);
+}
+
+void HTMLStyleElement::ContentAppended(nsIContent* aFirstNewContent) {
+  ContentChanged(aFirstNewContent->GetParent());
+}
+
+void HTMLStyleElement::ContentInserted(nsIContent* aChild) {
+  ContentChanged(aChild);
+}
+
+void HTMLStyleElement::ContentRemoved(nsIContent* aChild,
+                                      nsIContent* aPreviousSibling) {
+  ContentChanged(aChild);
+}
+
+void HTMLStyleElement::ContentChanged(nsIContent* aContent) {
+  mTriggeringPrincipal = nullptr;
+  if (nsContentUtils::IsInSameAnonymousTree(this, aContent)) {
+    Unused << UpdateStyleSheetInternal(nullptr, nullptr);
+  }
+}
+
+nsresult HTMLStyleElement::BindToTree(BindContext& aContext, nsINode& aParent) {
+  nsresult rv = nsGenericHTMLElement::BindToTree(aContext, aParent);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  void (HTMLStyleElement::*update)() =
+      &HTMLStyleElement::UpdateStyleSheetInternal;
+  nsContentUtils::AddScriptRunner(
+      NewRunnableMethod("dom::HTMLStyleElement::BindToTree", this, update));
+
+  return rv;
+}
+
+void HTMLStyleElement::UnbindFromTree(bool aNullParent) {
+  RefPtr<Document> oldDoc = GetUncomposedDoc();
+  ShadowRoot* oldShadow = GetContainingShadow();
+
+  nsGenericHTMLElement::UnbindFromTree(aNullParent);
+
+  Unused << UpdateStyleSheetInternal(oldDoc, oldShadow);
+}
+
+void HTMLStyleElement::AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName,
+                                    const nsAttrValue* aValue,
+                                    const nsAttrValue* aOldValue,
+                                    nsIPrincipal* aSubjectPrincipal,
+                                    bool aNotify) {
+  if (aNameSpaceID == kNameSpaceID_None) {
+    if (aName == nsGkAtoms::title || aName == nsGkAtoms::media ||
+        aName == nsGkAtoms::type) {
+      Unused << UpdateStyleSheetInternal(nullptr, nullptr, ForceUpdate::Yes);
+    }
+  }
+
+  return nsGenericHTMLElement::AfterSetAttr(
+      aNameSpaceID, aName, aValue, aOldValue, aSubjectPrincipal, aNotify);
+}
+
+void HTMLStyleElement::GetInnerHTML(nsAString& aInnerHTML,
+                                    OOMReporter& aError) {
+  if (!nsContentUtils::GetNodeTextContent(this, false, aInnerHTML, fallible)) {
+    aError.ReportOOM();
+  }
+}
+
+void HTMLStyleElement::SetInnerHTML(const nsAString& aInnerHTML,
+                                    nsIPrincipal* aScriptedPrincipal,
+                                    ErrorResult& aError) {
+  SetTextContentInternal(aInnerHTML, aScriptedPrincipal, aError);
+}
+
+void HTMLStyleElement::SetTextContentInternal(const nsAString& aTextContent,
+                                              nsIPrincipal* aScriptedPrincipal,
+                                              ErrorResult& aError) {
+  // Per spec, if we're setting text content to an empty string and don't
+  // already have any children, we should not trigger any mutation observers, or
+  // re-parse the stylesheet.
+  if (aTextContent.IsEmpty() && !GetFirstChild()) {
+    nsIPrincipal* principal =
+        mTriggeringPrincipal ? mTriggeringPrincipal.get() : NodePrincipal();
+    if (principal == aScriptedPrincipal) {
+      return;
+    }
+  }
+
+  SetEnableUpdates(false);
+
+  aError = nsContentUtils::SetNodeTextContent(this, aTextContent, true);
+
+  SetEnableUpdates(true);
+
+  mTriggeringPrincipal = aScriptedPrincipal;
+
+  Unused << UpdateStyleSheetInternal(nullptr, nullptr);
+}
+
+void HTMLStyleElement::SetDevtoolsAsTriggeringPrincipal() {
+  mTriggeringPrincipal = CreateDevtoolsPrincipal();
+}
+
+Maybe<LinkStyle::SheetInfo> HTMLStyleElement::GetStyleSheetInfo() {
+  if (!IsCSSMimeTypeAttributeForStyleElement(*this)) {
+    return Nothing();
+  }
+
+  nsAutoString title;
+  nsAutoString media;
+  GetTitleAndMediaForElement(*this, title, media);
+
+  return Some(SheetInfo{
+      *OwnerDoc(),
+      this,
+      nullptr,
+      do_AddRef(mTriggeringPrincipal),
+      MakeAndAddRef<ReferrerInfo>(*this),
+      CORS_NONE,
+      title,
+      media,
+      /* integrity = */ u""_ns,
+      /* nsStyleUtil::CSPAllowsInlineStyle takes care of nonce checking for
+         inline styles. Bug 1607011 */
+      /* nonce = */ u""_ns,
+      HasAlternateRel::No,
+      IsInline::Yes,
+      IsExplicitlyEnabled::No,
+  });
+}
+
+JSObject* HTMLStyleElement::WrapNode(JSContext* aCx,
+                                     JS::Handle<JSObject*> aGivenProto) {
+  return HTMLStyleElement_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+}  // namespace mozilla::dom