1 files changed, 113 insertions, 0 deletions
diff --git a/layout/style/CSSMediaRule.cpp b/layout/style/CSSMediaRule.cpp
new file mode 100644
index 0000000000..75b4ce4571
--- /dev/null
+++ b/layout/style/CSSMediaRule.cpp
@@ -0,0 +1,113 @@
+/* -*- 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/CSSMediaRule.h"
+
+#include "mozilla/dom/CSSMediaRuleBinding.h"
+#include "mozilla/dom/MediaList.h"
+#include "mozilla/ServoBindings.h"
+
+namespace mozilla::dom {
+
+CSSMediaRule::CSSMediaRule(RefPtr<StyleMediaRule> aRawRule, StyleSheet* aSheet,
+                           css::Rule* aParentRule, uint32_t aLine,
+                           uint32_t aColumn)
+    : ConditionRule(aSheet, aParentRule, aLine, aColumn),
+      mRawRule(std::move(aRawRule)) {}
+
+CSSMediaRule::~CSSMediaRule() {
+  if (mMediaList) {
+    mMediaList->SetStyleSheet(nullptr);
+  }
+}
+
+NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED_0(CSSMediaRule, css::ConditionRule)
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(CSSMediaRule)
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(CSSMediaRule,
+                                                css::ConditionRule)
+  if (tmp->mMediaList) {
+    tmp->mMediaList->SetStyleSheet(nullptr);
+    tmp->mMediaList = nullptr;
+  }
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(CSSMediaRule,
+                                                  css::ConditionRule)
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMediaList)
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+bool CSSMediaRule::IsCCLeaf() const {
+  return ConditionRule::IsCCLeaf() && !mMediaList;
+}
+
+/* virtual */
+void CSSMediaRule::DropSheetReference() {
+  if (mMediaList) {
+    mMediaList->SetStyleSheet(nullptr);
+  }
+  ConditionRule::DropSheetReference();
+}
+
+void CSSMediaRule::SetRawAfterClone(RefPtr<StyleMediaRule> aRaw) {
+  mRawRule = std::move(aRaw);
+  if (mMediaList) {
+    mMediaList->SetRawAfterClone(Servo_MediaRule_GetMedia(mRawRule).Consume());
+    mMediaList->SetStyleSheet(nullptr);
+    mMediaList->SetStyleSheet(GetStyleSheet());
+  }
+  css::ConditionRule::DidSetRawAfterClone();
+}
+
+already_AddRefed<StyleLockedCssRules> CSSMediaRule::GetOrCreateRawRules() {
+  return Servo_MediaRule_GetRules(mRawRule).Consume();
+}
+
+StyleCssRuleType CSSMediaRule::Type() const { return StyleCssRuleType::Media; }
+
+#ifdef DEBUG
+/* virtual */
+void CSSMediaRule::List(FILE* out, int32_t aIndent) const {
+  nsAutoCString str;
+  for (int32_t i = 0; i < aIndent; i++) {
+    str.AppendLiteral("  ");
+  }
+  Servo_MediaRule_Debug(mRawRule, &str);
+  fprintf_stderr(out, "%s\n", str.get());
+}
+#endif
+
+void CSSMediaRule::GetConditionText(nsACString& aConditionText) {
+  Media()->GetMediaText(aConditionText);
+}
+
+/* virtual */
+void CSSMediaRule::GetCssText(nsACString& aCssText) const {
+  Servo_MediaRule_GetCssText(mRawRule, &aCssText);
+}
+
+/* virtual */ dom::MediaList* CSSMediaRule::Media() {
+  if (!mMediaList) {
+    mMediaList = new MediaList(Servo_MediaRule_GetMedia(mRawRule).Consume());
+    mMediaList->SetStyleSheet(GetStyleSheet());
+  }
+  return mMediaList;
+}
+
+/* virtual */
+size_t CSSMediaRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const {
+  // TODO Implement this!
+  return aMallocSizeOf(this);
+}
+
+/* virtual */
+JSObject* CSSMediaRule::WrapObject(JSContext* aCx,
+                                   JS::Handle<JSObject*> aGivenProto) {
+  return CSSMediaRule_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+}  // namespace mozilla::dom