Struct EventCx 

pub struct EventCx<'a> {
    pub window_state: &'a mut WindowState,
}

A bundle of helper methods to be used by View::event handlers

Fields

window_state: &'a mut WindowState

Implementations

impl EventCx<'_>

pub fn update_active(&mut self, id: ViewId)

pub fn is_active(&self, id: ViewId) -> bool

pub fn should_send(&mut self, id: ViewId, event: &Event) -> bool

Used to determine if you should send an event to another view. This is basically a check for pointer events to see if the pointer is inside a child view and to make sure the current view isn’t hidden or disabled. Usually this is used if you want to propagate an event to a child view

Note: This function expects event coordinates to be in absolute (window) coordinates, as used by the stacking context event dispatch. The layout_rect and clip_rect are also in absolute coordinates, so they can be compared directly.