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// Copyright 2017 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_AUTOFILL_CORE_BROWSER_UI_REGION_COMBOBOX_MODEL_H_
#define COMPONENTS_AUTOFILL_CORE_BROWSER_UI_REGION_COMBOBOX_MODEL_H_
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "base/memory/raw_ptr.h"
#include "base/observer_list.h"
#include "ui/base/models/combobox_model.h"
namespace i18n {
namespace addressinput {
class RegionData;
} // namespace addressinput
} // namespace i18n
namespace autofill {
class RegionDataLoader;
// A model for country regions (aka state/provinces) to be used to enter
// addresses. Note that loading these regions can happen asynchronously so a
// ui::ComboboxModelObserver should be attached to this model to be updated when
// the regions load is completed.
class RegionComboboxModel : public ui::ComboboxModel {
public:
RegionComboboxModel();
RegionComboboxModel(const RegionComboboxModel&) = delete;
RegionComboboxModel& operator=(const RegionComboboxModel&) = delete;
~RegionComboboxModel() override;
void LoadRegionData(const std::string& country_code,
RegionDataLoader* region_data_loader);
bool IsPendingRegionDataLoad() const {
return region_data_loader_ != nullptr;
}
bool failed_to_load_data() const { return failed_to_load_data_; }
const std::vector<std::pair<std::string, std::string>>& GetRegions() const {
return regions_;
}
// ui::ComboboxModel implementation:
size_t GetItemCount() const override;
std::u16string GetItemAt(size_t index) const override;
bool IsItemSeparatorAt(size_t index) const override;
private:
// Callback for the RegionDataLoader.
void OnRegionDataLoaded(
const std::vector<const ::i18n::addressinput::RegionData*>& regions);
// Whether the region data load failed or not.
bool failed_to_load_data_;
// Lifespan not owned by RegionComboboxModel, but guaranteed to be alive up to
// a call to OnRegionDataLoaded where soft ownership must be released.
raw_ptr<RegionDataLoader> region_data_loader_;
// List of <code, name> pairs for ADDRESS_HOME_STATE combobox values;
std::vector<std::pair<std::string, std::string>> regions_;
// Weak pointer factory.
base::WeakPtrFactory<RegionComboboxModel> weak_factory_{this};
};
} // namespace autofill
#endif // COMPONENTS_AUTOFILL_CORE_BROWSER_UI_REGION_COMBOBOX_MODEL_H_
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