68 lines
1.6 KiB
C++
68 lines
1.6 KiB
C++
// Copyright (c) 2015 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include "shell/common/gin_helper/trackable_object.h"
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#include <memory>
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#include "base/bind.h"
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#include "base/supports_user_data.h"
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#include "shell/browser/electron_browser_main_parts.h"
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#include "shell/common/gin_helper/locker.h"
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namespace gin_helper {
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namespace {
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const char kTrackedObjectKey[] = "TrackedObjectKey";
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class IDUserData : public base::SupportsUserData::Data {
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public:
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explicit IDUserData(int32_t id) : id_(id) {}
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operator int32_t() const { return id_; }
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private:
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int32_t id_;
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DISALLOW_COPY_AND_ASSIGN(IDUserData);
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};
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} // namespace
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TrackableObjectBase::TrackableObjectBase() {
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// TODO(zcbenz): Make TrackedObject work in renderer process.
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DCHECK(gin_helper::Locker::IsBrowserProcess())
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<< "This class only works for browser process";
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}
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TrackableObjectBase::~TrackableObjectBase() = default;
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base::OnceClosure TrackableObjectBase::GetDestroyClosure() {
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return base::BindOnce(&TrackableObjectBase::Destroy,
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weak_factory_.GetWeakPtr());
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}
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void TrackableObjectBase::Destroy() {
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delete this;
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}
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void TrackableObjectBase::AttachAsUserData(base::SupportsUserData* wrapped) {
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wrapped->SetUserData(kTrackedObjectKey,
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std::make_unique<IDUserData>(weak_map_id_));
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}
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// static
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int32_t TrackableObjectBase::GetIDFromWrappedClass(
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base::SupportsUserData* wrapped) {
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if (wrapped) {
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auto* id =
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static_cast<IDUserData*>(wrapped->GetUserData(kTrackedObjectKey));
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if (id)
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return *id;
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}
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return 0;
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}
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} // namespace gin_helper
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