xusd
7 days ago 998218675eb243d43912c203174a6b72b299c0f8
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// components/ellipsis-text/index.js
const $$ = require('../../utils/util');
 
Component({
    /**
     * 组件的属性列表
     */
    properties: {
        content: {
            type: String,
            value: '',
        },
        fontsize: {
            type: String,
            value: '28',
        },
        line: {
            type: String,
            value: 1,
        },
        suffixVisible: Boolean, // 是否有省略后缀操作
    },
 
    /**
     * 组件的初始数据
     */
    data: {
        lineHeight: null,
    },
 
    lifetimes: {
        ready: function () {
            if (!this.data.suffixVisible) {
                this.setData({ lineHeight: this.data.fontsize === '24' ? '40rpx' : '' });
                return;
            }
            let that = this;
            wx.getSystemInfoAsync({
                success: (res1) => {
                    const query = this.createSelectorQuery();
                    query.select('#ellipsis-text').boundingClientRect();
                    query.exec(function (res) {
                        let clientWidth = res[0].width;
                        let ratio = 750 / (res1.windowWidth || 375);
                        let allNum = parseInt(parseInt(clientWidth) / (parseInt(that.data.fontsize) / ratio));
                        if (that.data.content.length > allNum * parseInt(that.data.line)) {
                            that.setData({ lineHeight: that.data.fontsize === '24' ? '40rpx' : '' });
                        }
                    });
                },
            });
        },
    },
 
    /**
     * 组件的方法列表
     */
    methods: {
        // 点击查看隐藏内容
        _handleShow() {
            if (this.data.suffixVisible) {
                $$.showModal({ title: '', content: this.data.content, showCancel: false });
            }
        },
    },
});