pan-core 0.1.0

A toolkit to create floating elements
Documentation 
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// Copyright (c) 2023 Xu Shaohua <shaohua@biofan.org>. All rights reserved.
// Use of this source is governed by Apache-2.0 License that can be found
// in the LICENSE file.

use crate::types::{
    ComputePositionConfig, ComputePositionReturn, MiddlewareReturn, MiddlewareState,
};

/// Impl Platform trait to support new platform environment.
pub trait Platform {
    fn dimensions(&self) -> i32;

    /// Returns true if layout direction is Right-To-Left.
    fn is_rtl(&self) -> bool;

    fn clipping_rect(&mut self) -> (f32, f32);
}

pub trait Middleware {
    fn name(&self) -> &str;
    fn run(&mut self, state: &MiddlewareState) -> MiddlewareReturn;
}

pub type ComputePosition = fn(config: &ComputePositionConfig) -> ComputePositionReturn;