1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/base/src/nsDOMCaretPosition.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,75 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +#include "nsDOMCaretPosition.h"
1.9 +
1.10 +#include "mozilla/dom/CaretPositionBinding.h"
1.11 +#include "mozilla/dom/DOMRect.h"
1.12 +#include "nsRange.h"
1.13 +
1.14 +using namespace mozilla::dom;
1.15 +
1.16 +nsDOMCaretPosition::nsDOMCaretPosition(nsINode* aNode, uint32_t aOffset)
1.17 + : mOffset(aOffset), mOffsetNode(aNode), mAnonymousContentNode(nullptr)
1.18 +{
1.19 + SetIsDOMBinding();
1.20 +}
1.21 +
1.22 +nsDOMCaretPosition::~nsDOMCaretPosition()
1.23 +{
1.24 +}
1.25 +
1.26 +nsINode* nsDOMCaretPosition::GetOffsetNode() const
1.27 +{
1.28 + return mOffsetNode;
1.29 +}
1.30 +
1.31 +already_AddRefed<DOMRect>
1.32 +nsDOMCaretPosition::GetClientRect() const
1.33 +{
1.34 + if (!mOffsetNode) {
1.35 + return nullptr;
1.36 + }
1.37 +
1.38 + nsRefPtr<DOMRect> rect;
1.39 + nsRefPtr<nsRange> domRange;
1.40 + nsCOMPtr<nsINode> node;
1.41 +
1.42 + if (mAnonymousContentNode) {
1.43 + node = mAnonymousContentNode;
1.44 + } else {
1.45 + node = mOffsetNode;
1.46 + }
1.47 +
1.48 + nsresult creationRv = nsRange::CreateRange(node, mOffset, node,
1.49 + mOffset,
1.50 + getter_AddRefs<nsRange>(domRange));
1.51 + if (!NS_SUCCEEDED(creationRv)) {
1.52 + return nullptr;
1.53 + }
1.54 +
1.55 + NS_ASSERTION(domRange, "unable to retrieve valid dom range from CaretPosition");
1.56 +
1.57 + rect = domRange->GetBoundingClientRect();
1.58 +
1.59 + return rect.forget();
1.60 +}
1.61 +
1.62 +JSObject*
1.63 +nsDOMCaretPosition::WrapObject(JSContext *aCx)
1.64 +{
1.65 + return mozilla::dom::CaretPositionBinding::Wrap(aCx, this);
1.66 +}
1.67 +
1.68 +NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_2(nsDOMCaretPosition,
1.69 + mOffsetNode, mAnonymousContentNode)
1.70 +
1.71 +NS_IMPL_CYCLE_COLLECTING_ADDREF(nsDOMCaretPosition)
1.72 +NS_IMPL_CYCLE_COLLECTING_RELEASE(nsDOMCaretPosition)
1.73 +
1.74 +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsDOMCaretPosition)
1.75 + NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
1.76 + NS_INTERFACE_MAP_ENTRY(nsISupports)
1.77 +NS_INTERFACE_MAP_END
1.78 +
