Enum zng::config::SaveState

pub enum SaveState {
    Enabled {
        key: Option<Txt>,
    },
    Disabled,
}

Window or widget persistence config.

See the save_state_node for more details.

Variants

Enabled

Save and restore state.

Fields

key: Option<Txt>

Config key that identifies the window or widget.

If None a key is generated from the widget ID and window ID name, see enabled_key for details about how key generation.

Disabled

Don’t save nor restore state.

Implementations

impl SaveState

pub const fn enabled() -> SaveState

Default, enabled, no key.

pub fn enabled_key(&self) -> Option<Txt>

Gets the config key if is enabled and can enable on the context.

If is enabled without a key, the key is generated from the widget or window name:

• If the widget ID has a name the key is "wgt-{name}-state".
• If the context is the window root or just a window and the window ID has a name the key is "win-{name}-state".

Trait Implementations

impl Clone for SaveState

fn clone(&self) -> SaveState

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SaveState

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for SaveState

fn default() -> SaveState

Enabled, no key, delay 1s.

impl<'de> Deserialize<'de> for SaveState

fn deserialize<__D>( __deserializer: __D, ) -> Result<SaveState, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<bool> for SaveState

fn from(persist: bool) -> SaveState

Convert true to default config and false to None.

impl IntoVar<SaveState> for bool

fn into_var(self) -> <bool as IntoVar<SaveState>>::Var

Convert true to default config and false to None.

type Var = LocalVar<SaveState>

Variable type that will wrap the T value.

fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>

where Self: Sized,

Converts into BoxedVar<T>.

impl PartialEq for SaveState

fn eq(&self, other: &SaveState) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for SaveState

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl IntoValue<SaveState> for bool

impl StructuralPartialEq for SaveState