Struct gio::Permission

#[repr(transparent)]
pub struct Permission { /* private fields */ }

A Permission represents the status of the caller’s permission to perform a certain action.

You can query if the action is currently allowed and if it is possible to acquire the permission so that the action will be allowed in the future.

There is also an API to actually acquire the permission and one to release it.

As an example, a Permission might represent the ability for the user to write to a Settings object. This Permission object could then be used to decide if it is appropriate to show a “Click here to unlock” button in a dialog and to provide the mechanism to invoke when that button is clicked.

This is an Abstract Base Class, you cannot instantiate it.

Properties

allowed

true if the caller currently has permission to perform the action that permission represents the permission to perform.

Readable

can-acquire

true if it is generally possible to acquire the permission by calling PermissionExt::acquire().

Readable

can-release

true if it is generally possible to release the permission by calling PermissionExt::release().

Readable

Implements

PermissionExt, glib::ObjectExt

Implementations

impl Permission

pub const NONE: Option<&'static Permission> = None

Trait Implementations

impl Clone for Permission

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Permission

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

Formats the value using the given formatter.

impl Display for Permission

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

Formats the value using the given formatter.

impl HasParamSpec for Permission

type ParamSpec = ParamSpecObject

type SetValue = Permission

Preferred value to be used as setter for the associated ParamSpec.

type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, Permission>

fn param_spec_builder() -> Self::BuilderFn

impl Hash for Permission

fn hash<H>(&self, state: &mut H)where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Permission

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl ParentClassIs for Permission

type Parent = Object

impl<OT: ObjectType> PartialEq<OT> for Permission

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl<OT: ObjectType> PartialOrd<OT> for Permission

fn partial_cmp(&self, other: &OT) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StaticType for Permission

fn static_type() -> Type

Returns the type identifier of Self.

impl Eq for Permission

impl IsA<Permission> for SimplePermission