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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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This commit is contained in:
Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
150858 changed files with 23884658 additions and 0 deletions
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76
dom/base/nsDOMCaretPosition.cpp Normal file
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/* -*- 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