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-rw-r--r--dom/base/nsDOMCaretPosition.cpp76
1 files changed, 76 insertions, 0 deletions
diff --git a/dom/base/nsDOMCaretPosition.cpp b/dom/base/nsDOMCaretPosition.cpp
new file mode 100644
index 000000000..0ee7c305f
--- /dev/null
+++ b/dom/base/nsDOMCaretPosition.cpp
@@ -0,0 +1,76 @@
+/* -*- 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 "nsDOMCaretPosition.h"
+
+#include "mozilla/dom/CaretPositionBinding.h"
+#include "mozilla/dom/DOMRect.h"
+#include "nsRange.h"
+
+using namespace mozilla::dom;
+
+nsDOMCaretPosition::nsDOMCaretPosition(nsINode* aNode, uint32_t aOffset)
+ : mOffset(aOffset), mOffsetNode(aNode), mAnonymousContentNode(nullptr)
+{
+}
+
+nsDOMCaretPosition::~nsDOMCaretPosition()
+{
+}
+
+nsINode* nsDOMCaretPosition::GetOffsetNode() const
+{
+ return mOffsetNode;
+}
+
+already_AddRefed<DOMRect>
+nsDOMCaretPosition::GetClientRect() const
+{
+ if (!mOffsetNode) {
+ return nullptr;
+ }
+
+ RefPtr<DOMRect> rect;
+ RefPtr<nsRange> domRange;
+ nsCOMPtr<nsINode> node;
+
+ if (mAnonymousContentNode) {
+ node = mAnonymousContentNode;
+ } else {
+ node = mOffsetNode;
+ }
+
+ nsresult creationRv = nsRange::CreateRange(node, mOffset, node,
+ mOffset,
+ getter_AddRefs<nsRange>(domRange));
+ if (!NS_SUCCEEDED(creationRv)) {
+ return nullptr;
+ }
+
+ NS_ASSERTION(domRange, "unable to retrieve valid dom range from CaretPosition");
+
+ rect = domRange->GetBoundingClientRect(false);
+
+ return rect.forget();
+}
+
+JSObject*
+nsDOMCaretPosition::WrapObject(JSContext *aCx, JS::Handle<JSObject*> aGivenProto)
+{
+ return mozilla::dom::CaretPositionBinding::Wrap(aCx, this, aGivenProto);
+}
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(nsDOMCaretPosition,
+ mOffsetNode, mAnonymousContentNode)
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(nsDOMCaretPosition)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(nsDOMCaretPosition)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsDOMCaretPosition)
+ NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
+ NS_INTERFACE_MAP_ENTRY(nsISupports)
+NS_INTERFACE_MAP_END
+