import { VantComponent } from '../common/component'; const FONT_COLOR = '#ed6a0c'; const BG_COLOR = '#fffbe8'; VantComponent({ props: { text: { type: String, value: '' }, mode: { type: String, value: '' }, url: { type: String, value: '' }, openType: { type: String, value: 'navigate' }, delay: { type: Number, value: 1 }, speed: { type: Number, value: 50 }, scrollable: { type: Boolean, value: true }, leftIcon: { type: String, value: '' }, color: { type: String, value: FONT_COLOR }, backgroundColor: { type: String, value: BG_COLOR }, wrapable: Boolean }, data: { show: true }, watch: { text() { this.setData({}, this.init); } }, created() { this.resetAnimation = wx.createAnimation({ duration: 0, timingFunction: 'linear' }); }, destroyed() { this.timer && clearTimeout(this.timer); }, methods: { init() { Promise.all([ this.getRect('.van-notice-bar__content'), this.getRect('.van-notice-bar__wrap') ]).then((rects) => { const [contentRect, wrapRect] = rects; if (contentRect == null || wrapRect == null || !contentRect.width || !wrapRect.width) { return; } const { speed, scrollable, delay } = this.data; if (scrollable && wrapRect.width < contentRect.width) { const duration = (contentRect.width / speed) * 1000; this.wrapWidth = wrapRect.width; this.contentWidth = contentRect.width; this.duration = duration; this.animation = wx.createAnimation({ duration, timingFunction: 'linear', delay }); this.scroll(); } }); }, scroll() { this.timer && clearTimeout(this.timer); this.timer = null; this.setData({ animationData: this.resetAnimation .translateX(this.wrapWidth) .step() .export() }); setTimeout(() => { this.setData({ animationData: this.animation .translateX(-this.contentWidth) .step() .export() }); }, 20); this.timer = setTimeout(() => { this.scroll(); }, this.duration); }, onClickIcon() { this.timer && clearTimeout(this.timer); this.timer = null; this.setData({ show: false }); }, onClick(event) { this.$emit('click', event); } } });