diff options
Diffstat (limited to 'lib/settings.h')
| -rw-r--r-- | lib/settings.h | 279 |
1 files changed, 148 insertions, 131 deletions
diff --git a/lib/settings.h b/lib/settings.h index 61e5232a..d317ec2a 100644 --- a/lib/settings.h +++ b/lib/settings.h @@ -13,145 +13,162 @@ * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #pragma once #include <QtCore/QSettings> -#include <QtCore/QVector> #include <QtCore/QUrl> +#include <QtCore/QVector> class QVariant; -namespace QMatrixClient -{ - class Settings: public QSettings - { - Q_OBJECT - public: - /** - * Use this function before creating any Settings objects in order - * to setup a read-only location where configuration has previously - * been stored. This will provide an additional fallback in case of - * renaming the organisation/application. - */ - static void setLegacyNames(const QString& organizationName, - const QString& applicationName = {}); - -#if defined(_MSC_VER) && _MSC_VER < 1900 - // VS 2013 (and probably older) aren't friends with 'using' statements - // that involve private constructors - explicit Settings(QObject* parent = 0) : QSettings(parent) { } -#else - using QSettings::QSettings; -#endif - - Q_INVOKABLE void setValue(const QString &key, - const QVariant &value); - Q_INVOKABLE QVariant value(const QString &key, - const QVariant &defaultValue = {}) const; - - template <typename T> - T get(const QString& key, const T& defaultValue = {}) const - { - const auto qv = value(key, QVariant()); - return qv.isValid() && qv.canConvert<T>() ? qv.value<T>() - : defaultValue; - } - - Q_INVOKABLE bool contains(const QString& key) const; - Q_INVOKABLE QStringList childGroups() const; - - private: - static QString legacyOrganizationName; - static QString legacyApplicationName; - - protected: - QSettings legacySettings { legacyOrganizationName, - legacyApplicationName }; - }; - - class SettingsGroup: public Settings +namespace Quotient { +class Settings : public QSettings { + Q_OBJECT +public: + /// Add a legacy organisation/application name to migrate settings from + /*! + * Use this function before creating any Settings objects in order + * to set a legacy location where configuration has previously been stored. + * This will provide an additional fallback in case of renaming + * the organisation/application. Values in legacy locations are _removed_ + * when setValue() or remove() is called. + */ + static void setLegacyNames(const QString& organizationName, + const QString& applicationName = {}); + + using QSettings::QSettings; + + /// Set the value for a given key + /*! If the key exists in the legacy location, it is removed. */ + Q_INVOKABLE void setValue(const QString& key, const QVariant& value); + + /// Remove the value from both the primary and legacy locations + Q_INVOKABLE void remove(const QString& key); + + /// Obtain a value for a given key + /*! + * If the key doesn't exist in the primary settings location, the legacy + * location is checked. If neither location has the key, + * \p defaultValue is returned. + * + * This function returns a QVariant; use get<>() to get the unwrapped + * value if you know the type upfront. + * + * \sa setLegacyNames, get + */ + Q_INVOKABLE QVariant value(const QString& key, + const QVariant& defaultValue = {}) const; + + /// Obtain a value for a given key, coerced to the given type + /*! + * On top of value(), this function unwraps the QVariant and returns + * its contents assuming the type passed as the template parameter. + * If the type is different from the one stored inside the QVariant, + * \p defaultValue is returned. In presence of legacy settings, + * only the first found value is checked; if its type does not match, + * further checks through legacy settings are not performed and + * \p defaultValue is returned. + */ + template <typename T> + T get(const QString& key, const T& defaultValue = {}) const { - public: - template <typename... ArgTs> - explicit SettingsGroup(QString path, ArgTs&&... qsettingsArgs) - : Settings(std::forward<ArgTs>(qsettingsArgs)...) - , groupPath(std::move(path)) - { } - - Q_INVOKABLE bool contains(const QString& key) const; - Q_INVOKABLE QVariant value(const QString &key, - const QVariant &defaultValue = {}) const; - - template <typename T> - T get(const QString& key, const T& defaultValue = {}) const - { - const auto qv = value(key, QVariant()); - return qv.isValid() && qv.canConvert<T>() ? qv.value<T>() - : defaultValue; - } - - Q_INVOKABLE QString group() const; - Q_INVOKABLE QStringList childGroups() const; - Q_INVOKABLE void setValue(const QString &key, - const QVariant &value); - - Q_INVOKABLE void remove(const QString& key); - - private: - QString groupPath; - }; - -#define QMC_DECLARE_SETTING(type, propname, setter) \ - Q_PROPERTY(type propname READ propname WRITE setter) \ - public: \ - type propname() const; \ - void setter(type newValue); \ - private: - -#define QMC_DEFINE_SETTING(classname, type, propname, qsettingname, defaultValue, setter) \ -type classname::propname() const \ -{ \ - return get<type>(QStringLiteral(qsettingname), defaultValue); \ -} \ -\ -void classname::setter(type newValue) \ -{ \ - setValue(QStringLiteral(qsettingname), std::move(newValue)); \ -} \ - - class AccountSettings: public SettingsGroup + const auto qv = value(key, QVariant()); + return qv.isValid() && qv.canConvert<T>() ? qv.value<T>() : defaultValue; + } + + Q_INVOKABLE bool contains(const QString& key) const; + Q_INVOKABLE QStringList childGroups() const; + +private: + static QString legacyOrganizationName; + static QString legacyApplicationName; + +protected: + QSettings legacySettings { legacyOrganizationName, legacyApplicationName }; +}; + +class SettingsGroup : public Settings { +public: + template <typename... ArgTs> + explicit SettingsGroup(QString path, ArgTs&&... qsettingsArgs) + : Settings(std::forward<ArgTs>(qsettingsArgs)...) + , groupPath(std::move(path)) + {} + + Q_INVOKABLE bool contains(const QString& key) const; + Q_INVOKABLE QVariant value(const QString& key, + const QVariant& defaultValue = {}) const; + + template <typename T> + T get(const QString& key, const T& defaultValue = {}) const { - Q_OBJECT - Q_PROPERTY(QString userId READ userId CONSTANT) - QMC_DECLARE_SETTING(QString, deviceId, setDeviceId) - QMC_DECLARE_SETTING(QString, deviceName, setDeviceName) - QMC_DECLARE_SETTING(bool, keepLoggedIn, setKeepLoggedIn) - /** \deprecated \sa setAccessToken */ - Q_PROPERTY(QString accessToken READ accessToken WRITE setAccessToken) - Q_PROPERTY(QByteArray encryptionAccountPickle READ encryptionAccountPickle WRITE setEncryptionAccountPickle) - public: - template <typename... ArgTs> - explicit AccountSettings(const QString& accountId, ArgTs... qsettingsArgs) - : SettingsGroup("Accounts/" + accountId, qsettingsArgs...) - { } - - QString userId() const; - - QUrl homeserver() const; - void setHomeserver(const QUrl& url); - - /** \deprecated \sa setToken */ - QString accessToken() const; - /** \deprecated Storing accessToken in QSettings is unsafe, - * see QMatrixClient/Quaternion#181 */ - void setAccessToken(const QString& accessToken); - Q_INVOKABLE void clearAccessToken(); - - QByteArray encryptionAccountPickle(); - void setEncryptionAccountPickle(const QByteArray& encryptionAccountPickle); - Q_INVOKABLE void clearEncryptionAccountPickle(); - }; -} // namespace QMatrixClient + const auto qv = value(key, QVariant()); + return qv.isValid() && qv.canConvert<T>() ? qv.value<T>() : defaultValue; + } + + Q_INVOKABLE QString group() const; + Q_INVOKABLE QStringList childGroups() const; + Q_INVOKABLE void setValue(const QString& key, const QVariant& value); + + Q_INVOKABLE void remove(const QString& key); + +private: + QString groupPath; +}; + +#define QMC_DECLARE_SETTING(type, propname, setter) \ + Q_PROPERTY(type propname READ propname WRITE setter) \ +public: \ + type propname() const; \ + void setter(type newValue); \ + \ +private: + +#define QMC_DEFINE_SETTING(classname, type, propname, qsettingname, \ + defaultValue, setter) \ + type classname::propname() const \ + { \ + return get<type>(QStringLiteral(qsettingname), defaultValue); \ + } \ + \ + void classname::setter(type newValue) \ + { \ + setValue(QStringLiteral(qsettingname), std::move(newValue)); \ + } + +class AccountSettings : public SettingsGroup { + Q_OBJECT + Q_PROPERTY(QString userId READ userId CONSTANT) + QMC_DECLARE_SETTING(QString, deviceId, setDeviceId) + QMC_DECLARE_SETTING(QString, deviceName, setDeviceName) + QMC_DECLARE_SETTING(bool, keepLoggedIn, setKeepLoggedIn) + /** \deprecated \sa setAccessToken */ + Q_PROPERTY(QString accessToken READ accessToken WRITE setAccessToken) + Q_PROPERTY(QByteArray encryptionAccountPickle READ encryptionAccountPickle + WRITE setEncryptionAccountPickle) +public: + template <typename... ArgTs> + explicit AccountSettings(const QString& accountId, ArgTs... qsettingsArgs) + : SettingsGroup("Accounts/" + accountId, qsettingsArgs...) + {} + + QString userId() const; + + QUrl homeserver() const; + void setHomeserver(const QUrl& url); + + /** \deprecated \sa setToken */ + QString accessToken() const; + /** \deprecated Storing accessToken in QSettings is unsafe, + * see quotient-im/Quaternion#181 */ + void setAccessToken(const QString& accessToken); + Q_INVOKABLE void clearAccessToken(); + + QByteArray encryptionAccountPickle(); + void setEncryptionAccountPickle(const QByteArray& encryptionAccountPickle); + Q_INVOKABLE void clearEncryptionAccountPickle(); +}; +} // namespace Quotient |