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// Copyright 2020 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_SODA_SODA_INSTALLER_IMPL_CHROMEOS_H_
#define COMPONENTS_SODA_SODA_INSTALLER_IMPL_CHROMEOS_H_
#include <string_view>
#include "base/component_export.h"
#include "base/containers/flat_map.h"
#include "base/containers/flat_set.h"
#include "base/files/file_path.h"
#include "base/timer/timer.h"
#include "chromeos/ash/components/dbus/dlcservice/dlcservice_client.h"
#include "components/soda/soda_installer.h"
class PrefService;
namespace speech {
// Installer of SODA (Speech On-Device API) for the Live Caption feature on
// ChromeOS.
class COMPONENT_EXPORT(SODA_INSTALLER) SodaInstallerImplChromeOS
: public SodaInstaller {
public:
SodaInstallerImplChromeOS();
~SodaInstallerImplChromeOS() override;
SodaInstallerImplChromeOS(const SodaInstallerImplChromeOS&) = delete;
SodaInstallerImplChromeOS& operator=(const SodaInstallerImplChromeOS&) =
delete;
// Where the SODA DLC was installed. Cached on completed installation.
// Empty if SODA DLC not installed yet.
base::FilePath GetSodaBinaryPath() const override;
// Where the SODA language pack DLC was installed for a given language.
// Cached on completed installation. Empty if not installed yet.
base::FilePath GetLanguagePath(const std::string& language) const override;
// SodaInstaller:
void InstallLanguage(const std::string& language,
PrefService* global_prefs) override;
void UninstallLanguage(const std::string& language,
PrefService* global_prefs) override;
std::vector<std::string> GetAvailableLanguages() const override;
std::vector<std::string> GetLiveCaptionEnabledLanguages() const override;
std::string GetLanguageDlcNameForLocale(
const std::string& locale) const override;
private:
// SodaInstaller:
void InstallSoda(PrefService* global_prefs) override;
// Here "uninstall" is used in the DLC sense of the term: Uninstallation will
// disable a DLC but not immediately remove it from disk.
// Once a refcount to the DLC reaches 0 (meaning all profiles which had it
// installed have called to uninstall it), the DLC will remain in cache; if it
// is then not installed within a (DLC-service-defined) window of time, the
// DLC is automatically purged from disk.
void UninstallSoda(PrefService* global_prefs) override;
void InstallLanguageInternal(const std::string& language);
void SetSodaBinaryPath(base::FilePath new_path);
void SetLanguagePath(const LanguageCode language, base::FilePath new_path);
// Initializes language and installs the per-language components.
void InitLanguages(PrefService* profile_prefs,
PrefService* global_prefs) override;
// These functions are the InstallCallbacks for DlcserviceClient::Install().
void OnSodaInstalled(
const base::Time start_time,
const ash::DlcserviceClient::InstallResult& install_result);
void OnSodaInstallRetry();
void OnSodaLanguageInstallRetry();
void OnLanguageInstalled(
const LanguageCode language_code,
const std::string language_name,
const base::Time start_time,
const ash::DlcserviceClient::InstallResult& install_result);
// These functions are the ProgressCallbacks for DlcserviceClient::Install().
void OnSodaProgress(double progress);
void OnLanguageProgress(const LanguageCode language_code, double progress);
void OnSodaCombinedProgress();
// This is the UninstallCallback for DlcserviceClient::Uninstall().
void OnDlcUninstalled(std::string_view dlc_id, std::string_view err);
double soda_progress_ = 0.0;
double soda_backoff_seconds_ = 1.0;
// timer only used for soda install retries.
base::OneShotTimer soda_install_retry_timer_;
// timer only used for soda languagepack install retries. We keep them merged
// as we don't expect independent failures.
double soda_languagepack_backoff_seconds_ = 1.0;
base::OneShotTimer languagepack_install_retry_timer_;
base::flat_set<std::string> retry_languages_to_install_;
base::FilePath soda_lib_path_;
base::flat_map<LanguageCode, base::FilePath> installed_language_paths_;
struct LanguageInfo {
std::string dlc_name;
LanguageCode language_code;
};
base::flat_map<std::string, LanguageInfo> ConstructAvailableLanguages() const;
base::flat_map<std::string, LanguageInfo> available_languages_;
};
} // namespace speech
#endif // COMPONENTS_SODA_SODA_INSTALLER_IMPL_CHROMEOS_H_
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