Dragact/dist/lib/util/correction.js

import { collision, layoutCheck } from "./collison";
export const checkInContainer = (GridX, GridY, col, w) => {
    /**防止元素出container */
    if (GridX + w > col - 1)
        GridX = col - w; //右边界
    if (GridX < 0)
        GridX = 0; //左边界
    if (GridY < 0)
        GridY = 0; //上边界
    return { GridX, GridY };
};
/**
 * 这个函数会有副作用，不是纯函数，会改变item的Gridx和GridY
 * @param {*} item
 */
export const correctItem = (item, col) => {
    const { GridX, GridY } = checkInContainer(item.GridX, item.GridY, col, item.w);
    item.GridX = GridX;
    item.GridY = GridY;
};
export const correctLayout = (layout, col) => {
    var copy = [...layout];
    for (let i = 0; i < layout.length - 1; i++) {
        correctItem(copy[i], col);
        correctItem(copy[i + 1], col);
        if (collision(copy[i], copy[i + 1])) {
            copy = layoutCheck(copy, copy[i], copy[i].UniqueKey, copy[i].UniqueKey, 0);
        }
    }
    return copy;
};