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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/platform/mojo/mojo_binding_context.h"
#include "third_party/blink/public/platform/task_type.h"
#include "third_party/blink/renderer/platform/mojo/browser_interface_broker_proxy_impl.h"
#include "third_party/blink/renderer/platform/supplementable.h"
namespace blink {
namespace {
class MojoJSInterfaceBrokerWrapper final
: public GarbageCollected<MojoJSInterfaceBrokerWrapper>,
public Supplement<MojoBindingContext> {
public:
static constexpr char kSupplementName[] = "MojoJSInterfaceBrokerWrapper";
explicit MojoJSInterfaceBrokerWrapper(MojoBindingContext& context)
: Supplement(context), impl_(&context) {}
BrowserInterfaceBrokerProxyImpl& impl() { return impl_; }
void Trace(Visitor* visitor) const override {
visitor->Trace(impl_);
Supplement::Trace(visitor);
}
private:
BrowserInterfaceBrokerProxyImpl impl_;
};
} // namespace
bool MojoBindingContext::ShouldUseMojoJSInterfaceBroker() const {
return RequireSupplement<MojoJSInterfaceBrokerWrapper>();
}
const BrowserInterfaceBrokerProxy&
MojoBindingContext::GetMojoJSInterfaceBroker() const {
auto* wrapper = RequireSupplement<MojoJSInterfaceBrokerWrapper>();
CHECK(wrapper);
return wrapper->impl();
}
void MojoBindingContext::SetMojoJSInterfaceBroker(
mojo::PendingRemote<mojom::blink::BrowserInterfaceBroker> broker_remote) {
auto* wrapper = RequireSupplement<MojoJSInterfaceBrokerWrapper>();
if (!wrapper) {
wrapper = MakeGarbageCollected<MojoJSInterfaceBrokerWrapper>(*this);
ProvideSupplement(wrapper);
}
wrapper->impl().Bind(std::move(broker_remote),
GetTaskRunner(TaskType::kInternalDefault));
}
} // namespace blink
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