Adding upstream version 124.0.1.upstream/124.0.1

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

1 files changed, 183 insertions, 0 deletions

diff --git a/dom/base/NodeInfo.cpp b/dom/base/NodeInfo.cpp
new file mode 100644
index 0000000000..0a66d4deff
--- /dev/null
+++ b/dom/base/NodeInfo.cpp
@@ -0,0 +1,183 @@
+/* -*- 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/. */
+
+/*
+ * Class that represents a prefix/namespace/localName triple; a single
+ * nodeinfo is shared by all elements in a document that have that
+ * prefix, namespace, and localName.
+ */
+
+#include "mozilla/dom/NodeInfo.h"
+#include "mozilla/dom/NodeInfoInlines.h"
+
+#include "mozilla/ArrayUtils.h"
+#include "mozilla/Likely.h"
+
+#include "nsNodeInfoManager.h"
+#include "nsCOMPtr.h"
+#include "nsString.h"
+#include "nsAtom.h"
+#include "nsDOMString.h"
+#include "nsCRT.h"
+#include "nsINode.h"
+#include "nsContentUtils.h"
+#include "nsReadableUtils.h"
+#include "mozilla/Sprintf.h"
+#include "mozilla/dom/Document.h"
+#include "nsGkAtoms.h"
+#include "nsCCUncollectableMarker.h"
+#include "nsNameSpaceManager.h"
+
+using namespace mozilla;
+using mozilla::dom::NodeInfo;
+
+NodeInfo::~NodeInfo() {
+  mOwnerManager->RemoveNodeInfo(this);
+
+  // We can't use NS_IF_RELEASE because mName is const.
+  if (mInner.mName) {
+    mInner.mName->Release();
+  }
+  NS_IF_RELEASE(mInner.mPrefix);
+  NS_IF_RELEASE(mInner.mExtraName);
+}
+
+NodeInfo::NodeInfo(nsAtom* aName, nsAtom* aPrefix, int32_t aNamespaceID,
+                   uint16_t aNodeType, nsAtom* aExtraName,
+                   nsNodeInfoManager* aOwnerManager)
+    : mDocument(aOwnerManager->GetDocument()),
+      mInner(aName, aPrefix, aNamespaceID, aNodeType, aExtraName),
+      mOwnerManager(aOwnerManager) {
+  CheckValidNodeInfo(aNodeType, aName, aNamespaceID, aExtraName);
+
+  NS_IF_ADDREF(mInner.mName);
+  NS_IF_ADDREF(mInner.mPrefix);
+  NS_IF_ADDREF(mInner.mExtraName);
+
+  // Now compute our cached members.
+
+  // Qualified name.  If we have no prefix, use ToString on
+  // mInner.mName so that we get to share its buffer.
+  if (aPrefix) {
+    mQualifiedName = nsDependentAtomString(mInner.mPrefix) + u":"_ns +
+                     nsDependentAtomString(mInner.mName);
+  } else {
+    mInner.mName->ToString(mQualifiedName);
+  }
+
+  MOZ_ASSERT_IF(aNodeType != nsINode::ELEMENT_NODE &&
+                    aNodeType != nsINode::ATTRIBUTE_NODE &&
+                    aNodeType != UINT16_MAX,
+                aNamespaceID == kNameSpaceID_None && !aPrefix);
+
+  switch (aNodeType) {
+    case nsINode::ELEMENT_NODE:
+    case nsINode::ATTRIBUTE_NODE:
+      // Correct the case for HTML
+      if (aNodeType == nsINode::ELEMENT_NODE &&
+          aNamespaceID == kNameSpaceID_XHTML && GetDocument() &&
+          GetDocument()->IsHTMLDocument()) {
+        nsContentUtils::ASCIIToUpper(mQualifiedName, mNodeName);
+      } else {
+        mNodeName = mQualifiedName;
+      }
+      mInner.mName->ToString(mLocalName);
+      break;
+    case nsINode::TEXT_NODE:
+    case nsINode::CDATA_SECTION_NODE:
+    case nsINode::COMMENT_NODE:
+    case nsINode::DOCUMENT_NODE:
+    case nsINode::DOCUMENT_FRAGMENT_NODE:
+      mInner.mName->ToString(mNodeName);
+      SetDOMStringToNull(mLocalName);
+      break;
+    case nsINode::PROCESSING_INSTRUCTION_NODE:
+    case nsINode::DOCUMENT_TYPE_NODE:
+      mInner.mExtraName->ToString(mNodeName);
+      SetDOMStringToNull(mLocalName);
+      break;
+    default:
+      MOZ_ASSERT(aNodeType == UINT16_MAX, "Unknown node type");
+  }
+}
+
+// nsISupports
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(NodeInfo)
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_0(NodeInfo)
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INTERNAL(NodeInfo)
+  if (MOZ_UNLIKELY(cb.WantDebugInfo())) {
+    char name[72];
+    uint32_t nsid = tmp->NamespaceID();
+    nsAtomCString localName(tmp->NameAtom());
+    const char* nsuri = nsNameSpaceManager::GetNameSpaceDisplayName(nsid);
+    SprintfLiteral(name, "NodeInfo %s %s", nsuri, localName.get());
+
+    cb.DescribeRefCountedNode(tmp->mRefCnt.get(), name);
+  } else {
+    NS_IMPL_CYCLE_COLLECTION_DESCRIBE(NodeInfo, tmp->mRefCnt.get())
+  }
+
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mOwnerManager)
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_BEGIN(NodeInfo)
+  return nsCCUncollectableMarker::sGeneration && tmp->CanSkip();
+NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_END
+
+NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_IN_CC_BEGIN(NodeInfo)
+  return nsCCUncollectableMarker::sGeneration && tmp->CanSkip();
+NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_IN_CC_END
+
+NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_BEGIN(NodeInfo)
+  return nsCCUncollectableMarker::sGeneration && tmp->CanSkip();
+NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_END
+
+void NodeInfo::GetName(nsAString& aName) const {
+  mInner.mName->ToString(aName);
+}
+
+void NodeInfo::GetPrefix(nsAString& aPrefix) const {
+  if (mInner.mPrefix) {
+    mInner.mPrefix->ToString(aPrefix);
+  } else {
+    SetDOMStringToNull(aPrefix);
+  }
+}
+
+void NodeInfo::GetNamespaceURI(nsAString& aNameSpaceURI) const {
+  if (mInner.mNamespaceID > 0) {
+    nsresult rv = nsNameSpaceManager::GetInstance()->GetNameSpaceURI(
+        mInner.mNamespaceID, aNameSpaceURI);
+    // How can we possibly end up with a bogus namespace ID here?
+    if (NS_FAILED(rv)) {
+      MOZ_CRASH();
+    }
+  } else {
+    SetDOMStringToNull(aNameSpaceURI);
+  }
+}
+
+bool NodeInfo::NamespaceEquals(const nsAString& aNamespaceURI) const {
+  int32_t nsid = nsNameSpaceManager::GetInstance()->GetNameSpaceID(
+      aNamespaceURI, nsContentUtils::IsChromeDoc(mOwnerManager->GetDocument()));
+
+  return mozilla::dom::NodeInfo::NamespaceEquals(nsid);
+}
+
+void NodeInfo::DeleteCycleCollectable() {
+  RefPtr<nsNodeInfoManager> kungFuDeathGrip = mOwnerManager;
+  mozilla::Unused
+      << kungFuDeathGrip;  // Just keeping value alive for longer than this
+  delete this;
+}
+
+bool NodeInfo::CanSkip() {
+  return mDocument && nsCCUncollectableMarker::InGeneration(
+                          mDocument->GetMarkedCCGeneration());
+}