cczg-lottery-activity/uni_modules/zebra-swiper/libs/vue2/get-changed-params.js

51 lines
1.6 KiB
JavaScript

import {
paramsList
} from './params-list.js';
import {
isObject
} from './utils.js';
function getChangedParams(swiperParams, oldParams, children, oldChildren) {
const keys = [];
if (!oldParams) return keys;
const addKey = (key) => {
if (keys.indexOf(key) < 0) keys.push(key);
};
const oldChildrenKeys = oldChildren.map((child) => child.props && child.props.key);
const childrenKeys = children.map((child) => child.props && child.props.key);
if (oldChildrenKeys.join('') !== childrenKeys.join('')) keys.push('children');
if (oldChildren.length !== children.length) keys.push('children');
const watchParams = paramsList.filter((key) => key[0] === '_').map((key) => key.replace(/_/, ''));
watchParams.forEach((key) => {
if (key in swiperParams && key in oldParams) {
if (isObject(swiperParams[key]) && isObject(oldParams[key])) {
const newKeys = Object.keys(swiperParams[key]);
const oldKeys = Object.keys(oldParams[key]);
if (newKeys.length !== oldKeys.length) {
addKey(key);
} else {
newKeys.forEach((newKey) => {
if (swiperParams[key][newKey] !== oldParams[key][newKey]) {
addKey(key);
}
});
oldKeys.forEach((oldKey) => {
if (swiperParams[key][oldKey] !== oldParams[key][oldKey]) addKey(key);
});
}
} else if (swiperParams[key] !== oldParams[key]) {
addKey(key);
}
} else if (key in swiperParams && !(key in oldParams)) {
addKey(key);
} else if (!(key in swiperParams) && key in oldParams) {
addKey(key);
}
});
return keys;
}
export {
getChangedParams
};