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// Copyright 2024 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_UI_LENS_LENS_OVERLAY_LANGUAGES_CONTROLLER_H_
#define CHROME_BROWSER_UI_LENS_LENS_OVERLAY_LANGUAGES_CONTROLLER_H_
#include <memory>
#include <vector>
#include "base/memory/raw_ptr.h"
#include "chrome/browser/lens/core/mojom/translate.mojom.h"
#include "services/data_decoder/public/cpp/data_decoder.h"
#include "services/network/public/cpp/simple_url_loader.h"
class Profile;
// Callback type alias for page content bytes retrieved.
using SupportedLanguagesRetrievedCallback =
base::OnceCallback<void(const std::string&,
std::vector<lens::mojom::LanguagePtr>,
std::vector<lens::mojom::LanguagePtr>)>;
namespace lens {
// Sends a request to get supported translate source and target languages for
// the Lens Overlay.
class LensOverlayLanguagesController {
public:
explicit LensOverlayLanguagesController(Profile* profile);
virtual ~LensOverlayLanguagesController();
void SendGetSupportedLanguagesRequest(
SupportedLanguagesRetrievedCallback callback);
private:
std::unique_ptr<network::SimpleURLLoader> InitializeURLLoader();
void OnGetSupportedLanguagesResponse(
std::optional<std::string> response_body);
void OnJsonParsed(data_decoder::DataDecoder::ValueOrError result);
std::vector<lens::mojom::LanguagePtr> RetrieveLanguagesFromResults(
const base::Value::List* result_list);
// Callback for when the get supported languages response is decoded.
SupportedLanguagesRetrievedCallback callback_;
// The profile used to make requests.
raw_ptr<Profile> profile_;
// The locale used in the language request. Stored since technically, the
// locale can change before a response was received.
std::string locale_;
// A url loader to load the request to get supported languages.
std::unique_ptr<network::SimpleURLLoader> url_loader_;
base::WeakPtrFactory<LensOverlayLanguagesController> weak_ptr_factory_{this};
};
} // namespace lens
#endif // CHROME_BROWSER_UI_LENS_LENS_OVERLAY_LANGUAGES_CONTROLLER_H_
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