Struct Keymap 

pub struct Keymap {
    pub select_all: Option<KeyCombo>,
    pub clear_selection: Option<KeyCombo>,
    pub clone_selection: Option<KeyCombo>,
    pub delete_selection: Vec<KeyCombo>,
    pub pan_button: Button,
    pub edge_cut_modifiers: Modifiers,
    pub multi_select_modifiers: Modifiers,
}

Host-configurable bindings for graph-level keyboard and pointer actions.

Every key binding is optional (or, for Keymap::delete_selection, a list of alternatives) so a host can disable or remap any action; see Keymap::none for the disable-everything escape hatch. Keymap::default provides a sensible platform-appropriate starting point.

Fields

select_all: Option<KeyCombo>

Selects every node. None disables the shortcut.

clear_selection: Option<KeyCombo>

Clears the current selection. None disables the shortcut.

clone_selection: Option<KeyCombo>

Duplicates the selected nodes. None disables the shortcut.

delete_selection: Vec<KeyCombo>

Removes the selected nodes. Any combo in this list triggers the action; an empty list disables the shortcut.

pan_button: Button

The pointer button that pans the graph.

edge_cut_modifiers: Modifiers

The modifier state that starts an edge-cutting drag.

Unlike KeyCombo matching, the widget tests this field with Modifiers::contains, not exact equality, and checks it before Keymap::multi_select_modifiers when both could apply to the same chord.

multi_select_modifiers: Modifiers

The modifier state that extends the current selection instead of replacing it.

Unlike KeyCombo matching, the widget tests this field with Modifiers::contains, not exact equality, and is checked after Keymap::edge_cut_modifiers when both could apply to the same chord.

Implementations

impl Keymap

pub fn none() -> Self

A keymap with every key binding disabled and pointer fields left at their platform Default values.

Use this as a base when a host wants to opt into shortcuts individually instead of overriding Keymap::default piecemeal.

pub fn key_action( &self, key: &Key, physical: Physical, modifiers: Modifiers, ) -> Option<KeyAction>

Resolves a key press to the KeyAction it triggers, if any.

Checks bindings in field order (select_all, clear_selection, clone_selection, then delete_selection) and returns the first match.

Trait Implementations

impl Clone for Keymap

fn clone(&self) -> Keymap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Keymap

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

Formats the value using the given formatter.

impl Default for Keymap

fn default() -> Self

Platform-appropriate default bindings.

On wasm32, clone_selection uses Alt+D instead of Cmd/Ctrl+D because browsers intercept Cmd/Ctrl+D at the chrome level (bookmark the page) before it ever reaches the canvas. delete_selection drops the Backspace alternative on wasm32 because some browsers treat it as legacy back-navigation outside a text field. Both differences are unreachable on native, where the shortcuts work as expected.

impl PartialEq for Keymap

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Keymap