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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_ASSISTANT_MODEL_ASSISTANT_SUGGESTIONS_MODEL_H_
#define ASH_ASSISTANT_MODEL_ASSISTANT_SUGGESTIONS_MODEL_H_
#include <memory>
#include <vector>
#include "base/component_export.h"
#include "base/observer_list.h"
#include "chromeos/ash/services/libassistant/public/cpp/assistant_suggestion.h"
namespace base {
class UnguessableToken;
} // namespace base
namespace ash {
class AssistantSuggestionsModelObserver;
class COMPONENT_EXPORT(ASSISTANT_MODEL) AssistantSuggestionsModel {
public:
using AssistantSuggestion = assistant::AssistantSuggestion;
AssistantSuggestionsModel();
AssistantSuggestionsModel(const AssistantSuggestionsModel&) = delete;
AssistantSuggestionsModel& operator=(const AssistantSuggestionsModel&) =
delete;
~AssistantSuggestionsModel();
// Adds/removes the specified suggestions model |observer|.
void AddObserver(AssistantSuggestionsModelObserver* observer) const;
void RemoveObserver(AssistantSuggestionsModelObserver* observer) const;
// Returns the AssistantSuggestion uniquely identified by |id|. Returns
// nullptr if not found.
const AssistantSuggestion* GetSuggestionById(
const base::UnguessableToken& id) const;
// Sets the cache of conversation starters.
void SetConversationStarters(
std::vector<AssistantSuggestion>&& conversation_starters);
// Returns all cached conversation starters.
const std::vector<AssistantSuggestion>& GetConversationStarters() const;
// Sets the cache of onboarding suggestions.
void SetOnboardingSuggestions(
std::vector<AssistantSuggestion>&& onboarding_suggestions);
// Returns all cached onboarding suggestions.
const std::vector<AssistantSuggestion>& GetOnboardingSuggestions() const;
private:
void NotifyConversationStartersChanged();
void NotifyOnboardingSuggestionsChanged();
std::vector<AssistantSuggestion> conversation_starters_;
std::vector<AssistantSuggestion> onboarding_suggestions_;
mutable base::ObserverList<AssistantSuggestionsModelObserver> observers_;
};
} // namespace ash
#endif // ASH_ASSISTANT_MODEL_ASSISTANT_SUGGESTIONS_MODEL_H_
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