MiniPrograms/uni_modules/lime-f2/components/l-f2/utils.js

// #ifndef APP-NVUE
// 计算版本
export function compareVersion(v1, v2) {
	v1 = v1.split('.')
	v2 = v2.split('.')
	const len = Math.max(v1.length, v2.length)
	while (v1.length < len) {
		v1.push('0')
	}
	while (v2.length < len) {
		v2.push('0')
	}
	for (let i = 0; i < len; i++) {
		const num1 = parseInt(v1[i], 10)
		const num2 = parseInt(v2[i], 10)

		if (num1 > num2) {
			return 1
		} else if (num1 < num2) {
			return -1
		}
	}
	return 0
}

export function wrapEvent(e) {
	if (!e) return;
	if (!e.preventDefault) {
		e.preventDefault = function() {};
	}
	return e;
}

export const pixelRatio = uni.getSystemInfoSync().pixelRatio
// #endif
// #ifdef APP-NVUE
export function base64ToPath(base64) {
	return new Promise((resolve, reject) => {
		const [, format, bodyData] = /data:image\/(\w+);base64,(.*)/.exec(base64) || [];
		const bitmap = new plus.nativeObj.Bitmap('bitmap' + Date.now())
		bitmap.loadBase64Data(base64, () => {
			if (!format) {
				reject(new Error('ERROR_BASE64SRC_PARSE'))
			}
			const time = new Date().getTime();
			const filePath = `_doc/uniapp_temp/${time}.${format}`
			
			bitmap.save(filePath, {}, 
				() => {
					bitmap.clear()
					resolve(filePath)
				}, 
				(error) => {
					bitmap.clear()
					console.error(`${JSON.stringify(error)}`)
					reject(error)
				})
		}, (error) => {
			bitmap.clear()
			console.error(`${JSON.stringify(error)}`)
			reject(error)
		})
	})
}
// #endif