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1.3 KiB
1 line
1.3 KiB
import eventUtil from "../core/utils/event-util"; Component({ properties: { columnGap: { type: String, value: "20rpx" } }, data: { data: [], leftData: [], rightData: [] }, attached() { this._init() }, pageLifetimes: { show() { this._init() } }, methods: { _init() { wx.lin = wx.lin || {}, wx.lin.renderWaterFlow = (t = [], e = !1, a) => { if ("[object Array]" !== Object.prototype.toString.call(t)) return console.error("[data]参数类型错误，渲染失败"), !1; this.setData({ data: t }), e && (this.data.leftData = [], this.data.rightData = []), this._select(t, e).then(() => { a && a() }).catch(t => { console.error(t) }) } }, _select(t, e) { const a = wx.createSelectorQuery().in(this); return this.columnNodes = a.selectAll("#left, #right"), new Promise(a => { this._render(t, 0, e, () => { a() }) }) }, _render(t, e, a, i) { (t.length > e || a) && 0 !== this.data.data.length ? this.columnNodes.boundingClientRect().exec(h => { const r = h[0]; this.data.leftHeight = r[0].height, this.data.rightHeight = r[1].height, this.data.leftHeight <= this.data.rightHeight || a ? this.data.leftData.push(t[e]) : this.data.rightData.push(t[e]), this.setData({ leftData: this.data.leftData, rightData: this.data.rightData }, () => { this._render(t, ++e, !1, i) }) }) : i && i() }, onTapItem(t) { eventUtil.emit(this, "linitemtap", { item: t.currentTarget.dataset.item }) } } }); |