191 lines
7.3 KiB
JavaScript
191 lines
7.3 KiB
JavaScript
//@ts-ignore
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import qrcode from './weapp-qrcode.js';
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import dayjs from 'dayjs';
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export default OakComponent({
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isList: false,
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properties: {
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url: '',
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expiresAt: 0,
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filename: '',
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tips: '',
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size: 280,
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loading: false,
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disableDownload: false,
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onRefresh: undefined,
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onDownload: undefined,
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disabled: false,
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color: '#000000',
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bgColor: '#ffffff',
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},
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lifetimes: {
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ready() {
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const { url, size, color, bgColor } = this.props;
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if (process.env.OAK_PLATFORM === 'wechatMp') {
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const isBase64 = /data:image\/[\w|\W]+(;base64,)[\w|\W]*/.test(url);
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if (isBase64) {
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return;
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}
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const qrcodeURL = qrcode.drawImg(url, {
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typeNumber: 4, // 密度
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errorCorrectLevel: 'L', // 纠错等级
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size: size, // 白色边框
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color,
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bgColor
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});
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this.setState({
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qrcodeURL,
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});
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}
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},
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},
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methods: {
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onDownload() {
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const { url } = this.props;
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const { qrcodeURL } = this.state;
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let base64Data = url;
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if (qrcodeURL) {
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base64Data = qrcodeURL;
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}
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const pureBase64 = base64Data.replace(/^data:image\/\w+;base64,/, '');
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this.saveBase64Image(pureBase64);
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},
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// 保存Base64图片到相册
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saveBase64Image(base64Data) {
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const that = this;
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const { filename } = this.props;
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const name = filename || `temp_image_${Date.now()}.png`;
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// 1. 定义文件路径
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const filePath = `${wx.env.USER_DATA_PATH}/${name}`;
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// 2. 获取文件系统管理器
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const fs = wx.getFileSystemManager();
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// 3. 写入临时文件
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// 注意：写入前需确保Base64数据已经去掉了数据URL前缀（如"data:image/png;base64,"）
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fs.writeFile({
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filePath: filePath,
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data: base64Data, // 传入纯Base64字符串
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encoding: 'base64', // 指定编码格式
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success(res) {
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// 文件写入成功后，检查并保存到相册
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that.checkAuthAndSave(filePath);
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},
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fail(err) {
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// console.error('写入文件失败', err);
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wx.showToast({
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title: that.t('Save failed, error occurred while writing file'),
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icon: 'none',
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});
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},
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});
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},
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// 检查相册权限并保存
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checkAuthAndSave(filePath) {
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const that = this;
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// 1. 检查是否已授权
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wx.getSetting({
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success(res) {
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if (res.authSetting['scope.writePhotosAlbum']) {
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// 已授权，直接保存
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that.saveImageToAlbum(filePath);
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}
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else {
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// 未授权，申请权限
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wx.authorize({
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scope: 'scope.writePhotosAlbum',
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success() {
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// 授权成功，保存
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that.saveImageToAlbum(filePath);
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},
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fail(err) {
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// console.error('授权失败', err);
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// 引导用户手动开启
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wx.showModal({
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title: that.t('tip'),
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content: that.t('You need to authorize the permission to save the album in order to save the pictures'),
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showCancel: false,
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success(modalRes) {
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if (modalRes.confirm) {
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// 打开设置页面
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wx.openSetting({
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success(settingRes) {
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if (settingRes.authSetting['scope.writePhotosAlbum']) {
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wx.showModal({
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title: that.t('tip'),
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content: that.t('Authorization successful'),
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showCancel: false,
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});
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}
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},
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});
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}
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},
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});
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},
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});
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}
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},
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fail(err) {
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// console.error('获取设置失败', err);
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},
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});
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},
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// 执行保存到相册的操作
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saveImageToAlbum(filePath) {
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const that = this;
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wx.saveImageToPhotosAlbum({
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filePath: filePath,
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success(res) {
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wx.showToast({
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title: that.t('Save successful'),
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icon: 'success',
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duration: 2000,
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});
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},
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fail(err) {
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// console.error('保存到相册失败', err);
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if (err.errMsg.includes('cancel')) {
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return;
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}
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let errMsg = that.t('Save fail');
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if (err.errMsg.includes('fail auth deny') ||
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err.errMsg.includes('fail:auth denied')) {
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errMsg = that.t('Album permission denied, please reauthorize');
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}
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wx.showToast({
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title: errMsg,
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icon: 'none',
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duration: 2000,
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});
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},
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});
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},
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},
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formData({ features, props }) {
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const { url, expiresAt } = props;
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const isBase64 = /data:image\/[\w|\W]+(;base64,)[\w|\W]*/.test(url);
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let expired = false;
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let expiresAtStr = '';
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if (expiresAt) {
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const diff = dayjs(expiresAt).diff(dayjs(), 'days');
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if (diff > 0) {
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expiresAtStr = dayjs(expiresAt).format('YYYY年MM月DD日 HH:mm');
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expired = false;
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}
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else {
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const diff2 = dayjs(expiresAt).diff(dayjs(), 'minutes');
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expiresAtStr = dayjs(expiresAt).format('YYYY年MM月DD日 HH:mm');
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if (diff2 > 0) {
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expired = false;
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}
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else {
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expired = true;
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}
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}
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}
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return {
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isBase64,
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expired,
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expiresAtStr,
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};
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},
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});
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