Trait IFocusManager

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pub trait IFocusManager {
    // Required methods
    fn get_focused_element(&self) -> Option<Ref<InputElement>>;
    fn focus(
        &self,
        element: Option<&Ref<InputElement>>,
        method: NavigationMethod,
        key_modifiers: KeyModifiers,
    ) -> bool;
    fn try_move_focus(
        &self,
        direction: NavigationDirection,
        options: Option<&FindNextElementOptions>,
    ) -> bool;
    fn find_first_focusable_element(&self) -> Option<Ref<InputElement>>;
    fn find_last_focusable_element(&self) -> Option<Ref<InputElement>>;
    fn find_next_element(
        &self,
        direction: NavigationDirection,
        options: Option<&FindNextElementOptions>,
    ) -> Option<Ref<InputElement>>;
    fn as_any(&self) -> &dyn Any;
}

Expand description

Manages focus for the application.

Required Methods§

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fn get_focused_element(&self) -> Option<Ref<InputElement>>

Gets the currently focused element.

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fn focus( &self, element: Option<&Ref<InputElement>>, method: NavigationMethod, key_modifiers: KeyModifiers, ) -> bool

Focuses a control.

element is the control to focus; None clears the focus. method is the method by which focus was changed and key_modifiers any key modifiers active at the time of focus. Returns true if the focus moved to a control.

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fn try_move_focus( &self, direction: NavigationDirection, options: Option<&FindNextElementOptions>, ) -> bool

Attempts to change focus from the element with focus to the next focusable element in the specified direction.

direction must be one of next, previous, left, right, up and down. options help identify the next element to receive focus. Returns true if focus moved.

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