76 lines
2.0 KiB
C++
76 lines
2.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsDOMCaretPosition.h"
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#include "mozilla/dom/CaretPositionBinding.h"
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#include "mozilla/dom/DOMRect.h"
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#include "nsRange.h"
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using namespace mozilla::dom;
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nsDOMCaretPosition::nsDOMCaretPosition(nsINode* aNode, uint32_t aOffset)
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: mOffset(aOffset), mOffsetNode(aNode), mAnonymousContentNode(nullptr)
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{
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}
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nsDOMCaretPosition::~nsDOMCaretPosition()
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{
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}
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nsINode* nsDOMCaretPosition::GetOffsetNode() const
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{
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return mOffsetNode;
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}
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already_AddRefed<DOMRect>
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nsDOMCaretPosition::GetClientRect() const
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{
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if (!mOffsetNode) {
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return nullptr;
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}
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RefPtr<DOMRect> rect;
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RefPtr<nsRange> domRange;
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nsCOMPtr<nsINode> node;
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if (mAnonymousContentNode) {
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node = mAnonymousContentNode;
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} else {
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node = mOffsetNode;
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}
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nsresult creationRv = nsRange::CreateRange(node, mOffset, node,
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mOffset,
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getter_AddRefs<nsRange>(domRange));
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if (!NS_SUCCEEDED(creationRv)) {
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return nullptr;
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}
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NS_ASSERTION(domRange, "unable to retrieve valid dom range from CaretPosition");
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rect = domRange->GetBoundingClientRect(false);
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return rect.forget();
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}
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JSObject*
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nsDOMCaretPosition::WrapObject(JSContext *aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return mozilla::dom::CaretPositionBinding::Wrap(aCx, this, aGivenProto);
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}
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(nsDOMCaretPosition,
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mOffsetNode, mAnonymousContentNode)
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NS_IMPL_CYCLE_COLLECTING_ADDREF(nsDOMCaretPosition)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(nsDOMCaretPosition)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsDOMCaretPosition)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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