Struct ToolbarMirror 

pub struct ToolbarMirror { /* private fields */ }

A backend’s copy of one window’s toolbar, kept in step with the ToolbarOps and ToolbarPatches that reach it, and the one place a backend works out where a new item goes (docs/toolbars.md).

Every backend lays its bar out as a few groups (the leading and trailing ends of a header bar, the columns of a split window, the primary and overflow commands of a command bar) and keeps model order within each. So an inserted item always goes right after ToolbarMirror::prev_where its own group, or first in the group when that is None, and nothing already on the bar moves.

Implementations

impl ToolbarMirror

pub fn items(&self) -> &[ToolbarItem]

The bar’s items, in model order.

pub fn is_empty(&self) -> bool

pub fn get(&self, id: &str) -> Option<&ToolbarItem>

The item with this id.

pub fn by_action(&self, action: u64) -> Option<&ToolbarItem>

The item dispatching action: how a backend whose native bar reports only an action id (a menu tap) finds what was tapped.

pub fn remove(&mut self, id: &str) -> Option<ToolbarItem>

Take the item with id out, returning it.

pub fn insert(&mut self, index: usize, item: ToolbarItem)

Put item at index (clamped to the end).

pub fn apply(&mut self, op: &ToolbarOp)

Apply one op to the model: what a backend that repaints its whole native bar from the model (a menu of actions) does with each.

pub fn patch(&mut self, patch: &ToolbarPatch) -> bool

Write a value patch into the model. false when no item takes it.

pub fn prev_where( &self, index: usize, same_group: impl Fn(&ToolbarItem) -> bool, ) -> Option<&ToolbarItem>

The nearest item before index that same_group accepts: the native item a new one at index goes right after, in that group. None = it goes first in the group.

Trait Implementations

impl Clone for ToolbarMirror

fn clone(&self) -> ToolbarMirror

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ToolbarMirror

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

Formats the value using the given formatter.

impl Default for ToolbarMirror

fn default() -> ToolbarMirror

Returns the “default value” for a type.