gecko-dev/dom/base/StaticRange.cpp
Makoto Kato c2694625b5 Bug 1444847 - part 4: Implement mozilla::dom::StaticRange and static factory methods r=smaug
This patch is based on Makoto Kato-san's patch.

This patch implements `mozilla::dom::StaticRange` class and creating some
static factory methods.

Then, makes `AbstractRange` has a utility method of `SetStartAndEnd()`
method of `nsRange` and `StaticRange` for sharing same logic in one place.
However, there are some additional work is required only in `nsRange`, e.g.,
`nsRange` needs to start observing mutation of the range, but `StaticRange`
does not it.  Therefore, it's implemented as a template method which takes
`nsRange*` or `StaticRange*` as a parameter.  Then, each `DoSetRange()`
method of them can do different things without virtual calls.

Note that `StaticRange` does not have any properties, methods nor constructor.
Therefore, we need additional API to test it.

Differential Revision: https://phabricator.services.mozilla.com/D35143

--HG--
extra : moz-landing-system : lando
2019-06-28 07:48:52 +00:00

97 lines
4.2 KiB
C++

/* -*- 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 "mozilla/dom/StaticRange.h"
#include "mozilla/dom/StaticRangeBinding.h"
#include "nsINode.h"
namespace mozilla {
namespace dom {
template already_AddRefed<StaticRange> StaticRange::Create(
const RangeBoundary& aStartBoundary, const RangeBoundary& aEndBoundary,
ErrorResult& aRv);
template already_AddRefed<StaticRange> StaticRange::Create(
const RangeBoundary& aStartBoundary, const RawRangeBoundary& aEndBoundary,
ErrorResult& aRv);
template already_AddRefed<StaticRange> StaticRange::Create(
const RawRangeBoundary& aStartBoundary, const RangeBoundary& aEndBoundary,
ErrorResult& aRv);
template already_AddRefed<StaticRange> StaticRange::Create(
const RawRangeBoundary& aStartBoundary,
const RawRangeBoundary& aEndBoundary, ErrorResult& aRv);
template nsresult StaticRange::SetStartAndEnd(
const RangeBoundary& aStartBoundary, const RangeBoundary& aEndBoundary);
template nsresult StaticRange::SetStartAndEnd(
const RangeBoundary& aStartBoundary, const RawRangeBoundary& aEndBoundary);
template nsresult StaticRange::SetStartAndEnd(
const RawRangeBoundary& aStartBoundary, const RangeBoundary& aEndBoundary);
template nsresult StaticRange::SetStartAndEnd(
const RawRangeBoundary& aStartBoundary,
const RawRangeBoundary& aEndBoundary);
template void StaticRange::DoSetRange(const RangeBoundary& aStartBoundary,
const RangeBoundary& aEndBoundary,
nsINode* aRootNode);
template void StaticRange::DoSetRange(const RangeBoundary& aStartBoundary,
const RawRangeBoundary& aEndBoundary,
nsINode* aRootNode);
template void StaticRange::DoSetRange(const RawRangeBoundary& aStartBoundary,
const RangeBoundary& aEndBoundary,
nsINode* aRootNode);
template void StaticRange::DoSetRange(const RawRangeBoundary& aStartBoundary,
const RawRangeBoundary& aEndBoundary,
nsINode* aRootNode);
NS_IMPL_MAIN_THREAD_ONLY_CYCLE_COLLECTING_ADDREF(StaticRange)
NS_IMPL_MAIN_THREAD_ONLY_CYCLE_COLLECTING_RELEASE_WITH_LAST_RELEASE(
StaticRange, DoSetRange(RawRangeBoundary(), RawRangeBoundary(), nullptr))
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(StaticRange)
NS_INTERFACE_MAP_END_INHERITING(AbstractRange)
NS_IMPL_CYCLE_COLLECTION_CLASS(StaticRange)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(StaticRange, AbstractRange)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mStart)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mEnd)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(StaticRange, AbstractRange)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(StaticRange, AbstractRange)
NS_IMPL_CYCLE_COLLECTION_TRACE_END
// static
template <typename SPT, typename SRT, typename EPT, typename ERT>
already_AddRefed<StaticRange> StaticRange::Create(
const RangeBoundaryBase<SPT, SRT>& aStartBoundary,
const RangeBoundaryBase<EPT, ERT>& aEndBoundary, ErrorResult& aRv) {
RefPtr<StaticRange> staticRange = new StaticRange(aStartBoundary.Container());
aRv = staticRange->SetStartAndEnd(aStartBoundary, aEndBoundary);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
return staticRange.forget();
}
template <typename SPT, typename SRT, typename EPT, typename ERT>
void StaticRange::DoSetRange(const RangeBoundaryBase<SPT, SRT>& aStartBoundary,
const RangeBoundaryBase<EPT, ERT>& aEndBoundary,
nsINode* aRootNode) {
mStart = aStartBoundary;
mEnd = aEndBoundary;
mIsPositioned = mStart.IsSet();
}
JSObject* StaticRange::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return StaticRange_Binding::Wrap(aCx, this, aGivenProto);
}
} // namespace dom
} // namespace mozilla