Struct ItemsSource 

pub struct ItemsSource(/* private fields */);

A shared handle to an untyped items list: the value of an items source property.

Equality is the identity of the underlying collection.

Implementations

impl ItemsSource

pub fn new(list: Rc<dyn IItemsList>) -> Self

Wraps a list.

pub fn from_items(items: impl IntoIterator<Item = Option<BoxedValue>>) -> Self

Creates a non-notifying source holding the given items.

pub fn from_values<T: PropertyValue>( values: impl IntoIterator<Item = T>, ) -> Self

Creates a non-notifying source by boxing each of the given values.

pub fn from_strs<'a>(values: impl IntoIterator<Item = &'a str>) -> Self

Creates a non-notifying source of strings.

pub fn list(&self) -> &Rc<dyn IItemsList>

The list.

pub fn count(&self) -> usize

The number of items.

pub fn get_at(&self, index: usize) -> Option<BoxedValue>

The item at index. Panics if out of range.

pub fn index_of(&self, item: &Option<BoxedValue>) -> i32

The index of the first item equal to item, or -1.

pub fn contains(&self, item: &Option<BoxedValue>) -> bool

Whether the list contains an item equal to item.

pub fn is_notifying(&self) -> bool

Whether the list notifies of changes.

pub fn downcast_ref<T: 'static>(&self) -> Option<&T>

The typed collection behind the source, if it is a T.

pub fn identity(&self) -> usize

The identity of the underlying collection.

pub fn ptr_eq(&self, other: &ItemsSource) -> bool

Whether two handles refer to the same collection.

pub fn iter(&self) -> impl Iterator<Item = Option<BoxedValue>> + '_

The items, enumerated by index over the live list.

pub fn to_vec(&self) -> Vec<Option<BoxedValue>>

A copy of the items.

pub fn register_binding_conversion_with<S: 'static>( convert: fn(&S) -> ItemsSource, )

Lets bindings deliver a value of the collection type S to a property of type Option<ItemsSource> (or ItemsSource) on the current thread. register_binding_conversion for a collection type that converts with convert (a list handle that is delivered as the shared list).

pub fn register_binding_conversion<S: Clone + Into<ItemsSource> + 'static>()

Trait Implementations

impl Clone for ItemsSource

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ItemsSource

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

Formats the value using the given formatter.

impl<'a> From<&'a ItemsSource> for ItemsView<'a>

fn from(source: &'a ItemsSource) -> Self

Converts to this type from the input type.

impl From<CommandBarElementCollection> for ItemsSource

fn from(value: CommandBarElementCollection) -> Self

Converts to this type from the input type.

impl<T: PropertyValue> From<Rc<BindableList<T>>> for ItemsSource

fn from(value: Rc<BindableList<T>>) -> Self

Converts to this type from the input type.

impl<T: PropertyValue> From<Rc<FerroList<T>>> for ItemsSource

fn from(value: Rc<FerroList<T>>) -> Self

Converts to this type from the input type.

impl From<Rc<Vec<Option<Rc<dyn AnyValue>>>>> for ItemsSource

fn from(value: Rc<Vec<Option<BoxedValue>>>) -> Self

Converts to this type from the input type.

impl From<Rc<dyn IItemsList>> for ItemsSource

fn from(value: Rc<dyn IItemsList>) -> Self

Converts to this type from the input type.

impl From<Vec<Option<Rc<dyn AnyValue>>>> for ItemsSource

fn from(value: Vec<Option<BoxedValue>>) -> Self

Converts to this type from the input type.

impl From<Vec<Rc<dyn AnyValue>>> for ItemsSource

fn from(value: Vec<BoxedValue>) -> Self

Converts to this type from the input type.

impl MarkupTyped for ItemsSource

const MARKUP: &'static MarkupType

The markup metadata of the type.

impl PartialEq for ItemsSource

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

Equality operator ==.

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

Inequality operator !=.