fui_core 0.18.0

use crate::control::control_behavior::ControlBehavior;
use crate::{control::control_context::ControlContext, Point};
use std::any::Any;
use std::rc::Weak;
use std::{cell::RefCell, rc::Rc};

pub trait ControlObject: ControlBehavior {
    fn as_any(&self) -> &dyn Any;
    fn as_any_mut(&mut self) -> &mut dyn Any;

    fn get_context(&self) -> &ControlContext;
    fn get_context_mut(&mut self) -> &mut ControlContext;

    ///
    /// Returns all the child controls including this one
    /// that are located within a specified `point` of the window.
    /// This also includes controls placed behind hit controls.
    ///
    /// The order is from the bottom to the top.
    ///
    fn get_controls_at_point(&self, point: Point) -> Vec<Weak<RefCell<dyn ControlObject>>> {
        let rect = self.get_rect();
        let mut res = Vec::new();
        if point.is_inside(&rect) {
            let children = self.get_context().get_children();
            for child in children {
                res.append(&mut child.borrow().get_controls_at_point(point));
            }
            res.push(self.get_context().get_self_weak())
        }
        res
    }

    ///
    /// Returns the `hit` control and all its parent controls
    /// up to and including this one.
    ///
    fn get_hit_path(&self, point: Point) -> Vec<Weak<RefCell<dyn ControlObject>>> {
        let mut res = Vec::new();
        let mut hit_control = self.hit_test(point);
        while let Some(control) = &hit_control {
            res.push(Rc::downgrade(control));

            hit_control = if Rc::ptr_eq(&control, &self.get_context().get_self_rc()) {
                None
            } else {
                control.borrow().get_context().get_parent()
            }
        }
        res
    }
}

///
/// PartialEq implementation allows using ControlObject with Property.
///
impl PartialEq for dyn ControlObject {
    fn eq(&self, other: &Self) -> bool {
        std::ptr::eq(&self, &other)
    }
}