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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_BROWSER_INTERFACE_BROKER_IMPL_H_
#define CONTENT_BROWSER_BROWSER_INTERFACE_BROKER_IMPL_H_
#include "content/browser/browser_interface_binders.h"
#include "third_party/blink/public/mojom/browser_interface_broker.mojom.h"
namespace content {
// content's implementation of the BrowserInterfaceBroker interface that binds
// interfaces requested by the renderer. Every execution context type (frame,
// worker etc) owns an instance and registers appropriate handlers (see
// internal::PopulateBinderMap).
// Note: this mechanism will eventually replace the usage of InterfaceProvider
// and browser manifests, as well as DocumentInterfaceBroker.
template <typename ExecutionContextHost, typename InterfaceBinderContext>
class BrowserInterfaceBrokerImpl : public blink::mojom::BrowserInterfaceBroker {
public:
BrowserInterfaceBrokerImpl(ExecutionContextHost* host) : host_(host) {
internal::PopulateBinderMap(host, &binder_map_);
internal::PopulateBinderMapWithContext(host, &binder_map_with_context_);
}
// blink::mojom::BrowserInterfaceBroker
void GetInterface(mojo::GenericPendingReceiver receiver) {
DCHECK(receiver.interface_name().has_value());
if (!binder_map_.TryBind(&receiver)) {
if (!binder_map_with_context_.TryBind(internal::GetContextForHost(host_),
&receiver)) {
host_->ReportNoBinderForInterface("No binder found for interface " +
*receiver.interface_name());
}
}
}
private:
ExecutionContextHost* const host_;
mojo::BinderMap binder_map_;
mojo::BinderMapWithContext<InterfaceBinderContext> binder_map_with_context_;
DISALLOW_COPY_AND_ASSIGN(BrowserInterfaceBrokerImpl);
};
} // namespace content
#endif // CONTENT_BROWSER_BROWSER_INTERFACE_BROKER_IMPL_H_
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