Adding upstream version 86.0.1.upstream/86.0.1upstream

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

1 files changed, 189 insertions, 0 deletions

diff --git a/layout/style/CSSKeyframeRule.cpp b/layout/style/CSSKeyframeRule.cpp
new file mode 100644
index 0000000000..50634584e1
--- /dev/null
+++ b/layout/style/CSSKeyframeRule.cpp
@@ -0,0 +1,189 @@
+/* -*- 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/CSSKeyframeRule.h"
+
+#include "mozilla/DeclarationBlock.h"
+#include "mozilla/dom/CSSKeyframeRuleBinding.h"
+#include "nsDOMCSSDeclaration.h"
+
+namespace mozilla {
+namespace dom {
+
+// -------------------------------------------
+// CSSKeyframeDeclaration
+//
+
+class CSSKeyframeDeclaration : public nsDOMCSSDeclaration {
+ public:
+  explicit CSSKeyframeDeclaration(CSSKeyframeRule* aRule) : mRule(aRule) {
+    mDecls =
+        new DeclarationBlock(Servo_Keyframe_GetStyle(aRule->Raw()).Consume());
+  }
+
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(CSSKeyframeDeclaration,
+                                                         nsICSSDeclaration)
+
+  css::Rule* GetParentRule() final { return mRule; }
+
+  void DropReference() {
+    mRule = nullptr;
+    mDecls->SetOwningRule(nullptr);
+  }
+
+  DeclarationBlock* GetOrCreateCSSDeclaration(
+      Operation aOperation, DeclarationBlock** aCreated) final {
+    return mDecls;
+  }
+  nsresult SetCSSDeclaration(DeclarationBlock* aDecls,
+                             MutationClosureData* aClosureData) final {
+    if (!mRule) {
+      return NS_OK;
+    }
+    mRule->UpdateRule([this, aDecls]() {
+      if (mDecls != aDecls) {
+        mDecls->SetOwningRule(nullptr);
+        mDecls = aDecls;
+        mDecls->SetOwningRule(mRule);
+        Servo_Keyframe_SetStyle(mRule->Raw(), mDecls->Raw());
+      }
+    });
+    return NS_OK;
+  }
+  ParsingEnvironment GetParsingEnvironment(
+      nsIPrincipal* aSubjectPrincipal) const final {
+    return GetParsingEnvironmentForRule(mRule, CSSRule_Binding::KEYFRAME_RULE);
+  }
+  Document* DocToUpdate() final { return nullptr; }
+
+  nsINode* GetParentObject() final {
+    return mRule ? mRule->GetParentObject() : nullptr;
+  }
+
+  size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const {
+    size_t n = aMallocSizeOf(this);
+    // TODO we may want to add size of mDecls as well
+    return n;
+  }
+
+ private:
+  virtual ~CSSKeyframeDeclaration() {
+    MOZ_ASSERT(!mRule, "Backpointer should have been cleared");
+  }
+
+  CSSKeyframeRule* mRule;
+  RefPtr<DeclarationBlock> mDecls;
+};
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(CSSKeyframeDeclaration)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(CSSKeyframeDeclaration)
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(CSSKeyframeDeclaration)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(CSSKeyframeDeclaration)
+  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
+NS_INTERFACE_MAP_END_INHERITING(nsDOMCSSDeclaration)
+
+// -------------------------------------------
+// CSSKeyframeRule
+//
+
+CSSKeyframeRule::CSSKeyframeRule(already_AddRefed<RawServoKeyframe> aRaw,
+                                 StyleSheet* aSheet, css::Rule* aParentRule,
+                                 uint32_t aLine, uint32_t aColumn)
+    : css::Rule(aSheet, aParentRule, aLine, aColumn), mRaw(aRaw) {}
+
+CSSKeyframeRule::~CSSKeyframeRule() {
+  if (mDeclaration) {
+    mDeclaration->DropReference();
+  }
+}
+
+NS_IMPL_ADDREF_INHERITED(CSSKeyframeRule, css::Rule)
+NS_IMPL_RELEASE_INHERITED(CSSKeyframeRule, css::Rule)
+
+// QueryInterface implementation for nsCSSKeyframeRule
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(CSSKeyframeRule)
+NS_INTERFACE_MAP_END_INHERITING(css::Rule)
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(CSSKeyframeRule)
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(CSSKeyframeRule, css::Rule)
+  if (tmp->mDeclaration) {
+    tmp->mDeclaration->DropReference();
+    tmp->mDeclaration = nullptr;
+  }
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(CSSKeyframeRule, css::Rule)
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mDeclaration)
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+bool CSSKeyframeRule::IsCCLeaf() const {
+  return Rule::IsCCLeaf() && !mDeclaration;
+}
+
+#ifdef DEBUG
+/* virtual */
+void CSSKeyframeRule::List(FILE* out, int32_t aIndent) const {
+  nsAutoCString str;
+  for (int32_t i = 0; i < aIndent; i++) {
+    str.AppendLiteral("  ");
+  }
+  Servo_Keyframe_Debug(mRaw, &str);
+  fprintf_stderr(out, "%s\n", str.get());
+}
+#endif
+
+template <typename Func>
+void CSSKeyframeRule::UpdateRule(Func aCallback) {
+  if (IsReadOnly()) {
+    return;
+  }
+
+  aCallback();
+
+  if (StyleSheet* sheet = GetStyleSheet()) {
+    sheet->RuleChanged(this, StyleRuleChangeKind::Generic);
+  }
+}
+
+void CSSKeyframeRule::GetKeyText(nsACString& aKeyText) {
+  Servo_Keyframe_GetKeyText(mRaw, &aKeyText);
+}
+
+void CSSKeyframeRule::SetKeyText(const nsACString& aKeyText) {
+  UpdateRule(
+      [this, &aKeyText]() { Servo_Keyframe_SetKeyText(mRaw, &aKeyText); });
+}
+
+void CSSKeyframeRule::GetCssText(nsACString& aCssText) const {
+  Servo_Keyframe_GetCssText(mRaw, &aCssText);
+}
+
+nsICSSDeclaration* CSSKeyframeRule::Style() {
+  if (!mDeclaration) {
+    mDeclaration = new CSSKeyframeDeclaration(this);
+  }
+  return mDeclaration;
+}
+
+size_t CSSKeyframeRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const {
+  size_t n = aMallocSizeOf(this);
+  if (mDeclaration) {
+    n += mDeclaration->SizeOfIncludingThis(aMallocSizeOf);
+  }
+  return n;
+}
+
+/* virtual */
+JSObject* CSSKeyframeRule::WrapObject(JSContext* aCx,
+                                      JS::Handle<JSObject*> aGivenProto) {
+  return CSSKeyframeRule_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+}  // namespace dom
+}  // namespace mozilla