Skip to main content

ShadowTreeRegistry

Struct ShadowTreeRegistry 

Source
pub struct ShadowTreeRegistry {
    roots_by_host: BTreeMap<usize, ShadowRootData>,
    hosts_by_root: BTreeMap<usize, usize>,
}
Expand description

シャドウツリーの管理レジストリ(DomBridge 等に組み込み可能)。

Fields§

§roots_by_host: BTreeMap<usize, ShadowRootData>

host_idx -> ShadowRootData

§hosts_by_root: BTreeMap<usize, usize>

root_node_idx -> host_idx

Implementations§

Source§

impl ShadowTreeRegistry

Source

pub fn new() -> Self

Source

pub fn attach_shadow( &mut self, host_idx: usize, tag_name: &str, mode: ShadowRootMode, new_root_idx: usize, ) -> Result<ShadowRootData, AttachShadowError>

ホスト要素に ShadowRoot をアタッチする。

Source

pub fn get_by_host(&self, host_idx: usize) -> Option<&ShadowRootData>

ホスト要素の ShadowRoot を取得。

Source

pub fn get_host_by_root(&self, root_idx: usize) -> Option<usize>

ルートノード index からホスト要素 index を取得。

Source

pub fn is_shadow_root(&self, node_idx: usize) -> bool

指定ノードが ShadowRoot 仮想ノードかどうか。

Source

pub fn len(&self) -> usize

登録総数。

Source

pub fn is_empty(&self) -> bool

Trait Implementations§

Source§

impl Clone for ShadowTreeRegistry

Source§

fn clone(&self) -> ShadowTreeRegistry

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
Source§

impl Debug for ShadowTreeRegistry

Source§

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

Formats the value using the given formatter. Read more
Source§

impl Default for ShadowTreeRegistry

Source§

fn default() -> ShadowTreeRegistry

Returns the “default value” for a type. Read more

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> Same for T

Source§

type Output = T

Should always be Self
Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.