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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_UI_DEVTOOLS_DEVTOOLS_BASE_AGENT_H_
#define COMPONENTS_UI_DEVTOOLS_DEVTOOLS_BASE_AGENT_H_
#include "components/ui_devtools/protocol.h"
namespace ui_devtools {
class UiDevToolsAgent {
public:
UiDevToolsAgent() = default;
virtual ~UiDevToolsAgent() = default;
virtual void Init(protocol::UberDispatcher*) = 0;
virtual void Disable() = 0;
};
// A base agent so that any Backend implementation has access to the
// corresponding frontend instance. This also wires the backend with
// the dispatcher. When initializing an instance of this class,
// the template argument is simply the generated Metainfo class of
// any domain type such as DOM or CSS.
template <typename DomainMetainfo>
class UiDevToolsBaseAgent : public UiDevToolsAgent,
public DomainMetainfo::BackendClass {
public:
UiDevToolsBaseAgent(const UiDevToolsBaseAgent&) = delete;
UiDevToolsBaseAgent& operator=(const UiDevToolsBaseAgent&) = delete;
// UiDevToolsAgent:
void Init(protocol::UberDispatcher* dispatcher) override {
frontend_.reset(
new typename DomainMetainfo::FrontendClass(dispatcher->channel()));
DomainMetainfo::DispatcherClass::wire(dispatcher, this);
}
void Disable() override { disable(); }
// Common methods between all generated Backends, subclasses may
// choose to override them (but not necessary).
protocol::Response enable() override { return protocol::Response::Success(); }
protocol::Response disable() override {
return protocol::Response::Success();
}
protected:
UiDevToolsBaseAgent() = default;
typename DomainMetainfo::FrontendClass* frontend() const {
return frontend_.get();
}
private:
std::unique_ptr<typename DomainMetainfo::FrontendClass> frontend_;
};
} // namespace ui_devtools
#endif // COMPONENTS_UI_DEVTOOLS_DEVTOOLS_BASE_AGENT_H_
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