feat:date picker scroll time into view
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@@ -368,14 +368,36 @@ export class DatePicker {
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})
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const pickList: [HTMLOListElement, number][] = [[hourDom, hour], [minuteDom, minute], [secondDom, second]]
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pickList.forEach(([dom, time]) => {
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const pickDom = dom.querySelector(`[data-id='${time}']`)!
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const pickDom = dom.querySelector<HTMLLIElement>(`[data-id='${time}']`)!
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pickDom.classList.add('active')
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if (isIntoView) {
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pickDom.scrollIntoView()
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this._scrollIntoView(dom, pickDom)
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}
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})
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}
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private _scrollIntoView(container: HTMLElement, selected: HTMLElement) {
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if (!selected) {
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container.scrollTop = 0
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return
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}
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const offsetParents: HTMLElement[] = []
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let pointer = <HTMLElement>selected.offsetParent
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while (pointer && container !== pointer && container.contains(pointer)) {
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offsetParents.push(pointer)
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pointer = <HTMLElement>pointer.offsetParent
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}
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const top = selected.offsetTop + offsetParents.reduce((prev, curr) => (prev + curr.offsetTop), 0)
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const bottom = top + selected.offsetHeight
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const viewRectTop = container.scrollTop
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const viewRectBottom = viewRectTop + container.clientHeight
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if (top < viewRectTop) {
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container.scrollTop = top
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} else if (bottom > viewRectBottom) {
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container.scrollTop = bottom - container.clientHeight
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}
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}
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private _preMonth() {
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this.now.setMonth(this.now.getMonth() - 1)
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this._update()
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