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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_ASH_INPUT_METHOD_SUGGESTIONS_COLLECTOR_H_
#define CHROME_BROWSER_ASH_INPUT_METHOD_SUGGESTIONS_COLLECTOR_H_
#include <memory>
#include <vector>
#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "chrome/browser/ash/input_method/suggestions_source.h"
#include "chromeos/ash/services/ime/public/cpp/assistive_suggestions.h"
#include "chromeos/ash/services/ime/public/mojom/input_method_host.mojom.h"
namespace ash {
namespace input_method {
// Used to collect any text suggestions from the system
class SuggestionsCollector {
public:
// `assistive_suggester` must exist for the lifetime of this instance.
SuggestionsCollector(
SuggestionsSource* assistive_suggester,
std::unique_ptr<AsyncSuggestionsSource> suggestions_service_client);
~SuggestionsCollector();
using GatherSuggestionsCallback =
base::OnceCallback<void(ime::mojom::SuggestionsResponsePtr)>;
// Collects all suggestions from the system.
void GatherSuggestions(ime::mojom::SuggestionsRequestPtr request,
GatherSuggestionsCallback callback);
private:
// Called when suggestions have been returned from the injected
// SuggestionsRequestor.
void OnSuggestionsGathered(
GatherSuggestionsCallback callback,
const std::vector<ime::AssistiveSuggestion>& assistive_suggestions,
const std::vector<ime::AssistiveSuggestion>& system_suggestions);
// Not owned by this class
raw_ptr<SuggestionsSource> assistive_suggester_;
// Client used to request suggestions from the system
std::unique_ptr<AsyncSuggestionsSource> suggestions_service_client_;
};
} // namespace input_method
} // namespace ash
#endif // CHROME_BROWSER_ASH_INPUT_METHOD_SUGGESTIONS_COLLECTOR_H_
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