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155 lines
4.2 KiB
155 lines
4.2 KiB
import {
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TEMP_PATH
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} from '../constants'
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import {
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invoke
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} from '../../bridge'
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/**
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* 获取文件信息
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* @param {string} filePath 文件路径
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* @returns {Promise} 文件信息Promise
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*/
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function getFileInfo (filePath) {
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return new Promise((resolve, reject) => {
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plus.io.resolveLocalFileSystemURL(filePath, function (entry) {
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entry.getMetadata(function (meta) {
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resolve({
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size: meta.size
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})
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}, reject, false)
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}, reject)
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})
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}
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const invokeChooseImage = function (callbackId, type, sizeType, tempFilePaths = []) {
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if (!tempFilePaths.length) {
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invoke(callbackId, {
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code: sizeType,
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errMsg: `chooseImage:${type}`
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})
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return
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}
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var tempFiles = []
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// plus.zip.compressImage 压缩文件并发调用在iOS端容易出现问题（图像错误、闪退），改为队列执行
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tempFilePaths.reduce((promise, tempFilePath, index, array) => {
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return promise
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.then(() => {
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return getFileInfo(tempFilePath)
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})
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.then(fileInfo => {
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var size = fileInfo.size
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// 压缩阈值 0.5 兆
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var threshold = 1024 * 1024 * 0.5
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// 判断是否需要压缩
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if ((sizeType.indexOf('compressed') >= 0 && sizeType.indexOf('original') < 0) || (((
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sizeType.indexOf(
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'compressed') < 0 && sizeType.indexOf('original') < 0) || (sizeType
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.indexOf('compressed') >= 0 && sizeType.indexOf(
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'original') >= 0)) && size > threshold)) {
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return new Promise((resolve, reject) => {
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var dstPath = TEMP_PATH + '/compressed/' + Date.now() + (
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tempFilePath.match(/\.\S+$/) || [''])[0]
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plus.nativeUI.showWaiting()
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plus.zip.compressImage({
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src: tempFilePath,
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dst: dstPath,
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overwrite: true
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}, () => {
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resolve(dstPath)
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}, (error) => {
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reject(error)
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})
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})
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.then(dstPath => {
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array[index] = tempFilePath = dstPath
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return getFileInfo(tempFilePath)
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})
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.then(fileInfo => {
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return tempFiles.push({
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path: tempFilePath,
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size: fileInfo.size
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})
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})
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}
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return tempFiles.push({
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path: tempFilePath,
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size: size
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})
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})
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}, Promise.resolve())
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.then(() => {
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plus.nativeUI.closeWaiting()
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invoke(callbackId, {
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errMsg: `chooseImage:${type}`,
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tempFilePaths,
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tempFiles
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})
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}).catch(() => {
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plus.nativeUI.closeWaiting()
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invoke(callbackId, {
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errMsg: `chooseImage:${type}`
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})
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})
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}
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const openCamera = function (callbackId, sizeType) {
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const camera = plus.camera.getCamera()
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camera.captureImage(e => invokeChooseImage(callbackId, 'ok', sizeType, [e]),
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e => invokeChooseImage(callbackId, 'fail', 1), {
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filename: TEMP_PATH + '/camera/',
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resolution: 'high'
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})
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}
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const openAlbum = function (callbackId, sizeType, count) {
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// TODO Android 需要拷贝到 temp 目录
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plus.gallery.pick(e => invokeChooseImage(callbackId, 'ok', sizeType, e.files.map(file => {
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return file
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})), e => {
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invokeChooseImage(callbackId, 'fail', 2)
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}, {
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maximum: count,
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multiple: true,
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system: false,
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filename: TEMP_PATH + '/gallery/'
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})
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}
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export function chooseImage ({
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count = 9,
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sizeType = ['original', 'compressed'],
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sourceType = ['album', 'camera']
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} = {}, callbackId) {
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let fallback = true
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if (sourceType.length === 1) {
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if (sourceType[0] === 'album') {
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fallback = false
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openAlbum(callbackId, sizeType, count)
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} else if (sourceType[0] === 'camera') {
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fallback = false
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openCamera(callbackId, sizeType)
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}
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}
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if (fallback) {
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plus.nativeUI.actionSheet({
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cancel: '取消',
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buttons: [{
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title: '拍摄'
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}, {
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title: '从手机相册选择'
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}]
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}, (e) => {
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switch (e.index) {
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case 0:
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invokeChooseImage(callbackId, 'fail', 0)
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break
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case 1:
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openCamera(callbackId, sizeType)
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break
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case 2:
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openAlbum(callbackId, sizeType, count)
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break
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}
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})
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}
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}
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