зеркало из https://github.com/mozilla/gecko-dev.git
59 строки
1.9 KiB
C++
59 строки
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 "mozilla/ErrorResult.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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nsDOMCaretPosition::~nsDOMCaretPosition() = default;
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nsINode* nsDOMCaretPosition::GetOffsetNode() const { return mOffsetNode; }
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already_AddRefed<DOMRect> nsDOMCaretPosition::GetClientRect() const {
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if (!mOffsetNode) {
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return nullptr;
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}
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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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RefPtr<nsRange> range =
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nsRange::Create(node, mOffset, node, mOffset, mozilla::IgnoreErrors());
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if (!range) {
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return nullptr;
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}
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RefPtr<DOMRect> rect = range->GetBoundingClientRect(false);
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return rect.forget();
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}
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JSObject* nsDOMCaretPosition::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return mozilla::dom::CaretPosition_Binding::Wrap(aCx, this, aGivenProto);
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}
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(nsDOMCaretPosition, mOffsetNode,
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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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