import { SyntheticMouseEvent, Button } from '../../SyntheticMouseEvent';
import { NativeEvent } from './NativeEvent';

export class NativeMouseEvent extends NativeEvent {
    static init(e: any, res: SyntheticMouseEvent) {
        const rect = e.target.getBoundingClientRect();
        res.x = e.clientX - rect.left;
        res.y = e.clientY - rect.top;
        res.button = NativeMouseEvent.convertButton(e);
        res.buttons = e.buttons;
        res.modifiers = NativeEvent.convertModifiers(e);
    }

    static convertButton(e: any) {
        const ret = e.button || e.which;
        switch (ret) {
            case 0: return Button.None;
            case 1: return Button.Left;
            case 2: return Button.Middle;
            case 3: return Button.Right;
            default: return ret;
        }
    }

    static map(e: any) {
        const ret = new SyntheticMouseEvent();
        NativeMouseEvent.init(e, ret);
        return ret;
    }

    static readonly target = SyntheticMouseEvent;
}