181 lines
3.5 KiB
JavaScript
181 lines
3.5 KiB
JavaScript
export function compareVersion(v1, v2) {
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v1 = v1.split('.')
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v2 = v2.split('.')
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const len = Math.max(v1.length, v2.length)
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while (v1.length < len) {
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v1.push('0')
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}
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while (v2.length < len) {
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v2.push('0')
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}
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for (let i = 0; i < len; i++) {
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const num1 = parseInt(v1[i], 10)
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const num2 = parseInt(v2[i], 10)
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if (num1 > num2) {
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return 1
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} else if (num1 < num2) {
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return -1
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}
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}
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return 0
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}
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let {platform, SDKVersion} = uni.getSystemInfoSync()
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function gte(version) {
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// #ifdef MP-ALIPAY
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SDKVersion = my.SDKVersion
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// #endif
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return compareVersion(SDKVersion, version) >= 0;
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}
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export const isPC = /windows|mac/.test(platform)
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export function canIUseCanvas2d() {
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// #ifdef MP-WEIXIN
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return gte('2.9.0');
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// #endif
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// #ifdef MP-ALIPAY
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return gte('2.7.0');
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// #endif
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// #ifdef MP-TOUTIAO
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return gte('1.78.0');
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// #endif
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return false
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}
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export const wrapEvent = (e) => {
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if (!e) return;
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if (!e.preventDefault) {
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e.preventDefault = function() {};
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}
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return e;
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}
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export const requestAnimationFrame = (cb) => {
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setTimeout(cb, 30)
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}
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// #ifdef MP
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export const prefix = () => {
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// #ifdef MP-TOUTIAO
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return tt
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// #endif
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// #ifdef MP-WEIXIN
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return wx
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// #endif
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// #ifdef MP-BAIDU
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return swan
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// #endif
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// #ifdef MP-ALIPAY
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return my
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// #endif
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// #ifdef MP-QQ
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return qq
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// #endif
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// #ifdef MP-360
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return qh
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// #endif
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}
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// #endif
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/**
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* base64转路径
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* @param {Object} base64
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*/
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export function base64ToPath(base64) {
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const [, format, bodyData] = /data:image\/(\w+);base64,(.*)/.exec(base64) || [];
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return new Promise((resolve, reject) => {
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// #ifdef MP
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const p = prefix()
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const fs = p.getFileSystemManager()
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//自定义文件名
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if (!format) {
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reject(new Error('ERROR_BASE64SRC_PARSE'))
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}
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const time = new Date().getTime();
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const filePath = `${p.env.USER_DATA_PATH}/${time}.${format}`;
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fs.writeFile({
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filePath,
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data: base64.split(',')[1],
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encoding: 'base64',
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success() {
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resolve(filePath)
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},
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fail(err) {
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reject(err)
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}
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})
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// #endif
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// #ifdef APP-PLUS
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const bitmap = new plus.nativeObj.Bitmap('bitmap' + Date.now())
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bitmap.loadBase64Data(base64, () => {
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if (!format) {
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reject(new Error('ERROR_BASE64SRC_PARSE'))
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}
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const time = new Date().getTime();
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const filePath = `_doc/uniapp_temp/${time}.${format}`
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bitmap.save(filePath, {},
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() => {
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bitmap.clear()
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resolve(filePath)
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},
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(error) => {
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bitmap.clear()
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reject(error)
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})
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}, (error) => {
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bitmap.clear()
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reject(error)
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})
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// #endif
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})
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}
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export function sleep(delay) {
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return new Promise(resolve => setTimeout(resolve, delay))
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}
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export function getRect(selector, options = {}) {
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const typeDefault = 'boundingClientRect'
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const { context, type = typeDefault} = options
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return new Promise((resolve, reject) => {
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const dom = uni.createSelectorQuery().in(context).select(selector);
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const result = (rect) => {
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if(rect) {
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resolve(rect)
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} else {
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reject()
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}
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}
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if(type == typeDefault) {
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dom[type](result).exec()
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} else {
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dom[type]({
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node: true,
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size: true,
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rect: true
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}, result).exec()
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}
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});
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};
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export function isTransparent(color) {
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// 判断颜色是否为 transparent
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if (color === 'transparent') {
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return true;
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}
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// 判断颜色是否为 rgba 的 a 为 0
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if (color.startsWith('rgba')) {
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const regex = /\d+(\.\d+)?/g;
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const matches = color.match(regex);
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if (matches !== null) {
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const alpha = parseFloat(matches[3]);
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if (alpha === 0) {
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return true;
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}
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}
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}
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return false;
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} |