42 lines
1.4 KiB
JavaScript
42 lines
1.4 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = useWatch;
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var _useLayoutEffect = _interopRequireDefault(require("@rc-component/util/lib/hooks/useLayoutEffect"));
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var _util = require("../util");
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function useWatch(open, target, popup, onAlign, onScroll) {
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(0, _useLayoutEffect.default)(() => {
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if (open && target && popup) {
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const targetElement = target;
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const popupElement = popup;
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const targetScrollList = (0, _util.collectScroller)(targetElement);
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const popupScrollList = (0, _util.collectScroller)(popupElement);
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const win = (0, _util.getWin)(popupElement);
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const mergedList = new Set([win, ...targetScrollList, ...popupScrollList]);
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function notifyScroll() {
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onAlign();
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onScroll();
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}
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mergedList.forEach(scroller => {
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scroller.addEventListener('scroll', notifyScroll, {
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passive: true
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});
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});
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win.addEventListener('resize', notifyScroll, {
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passive: true
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});
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// First time always do align
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onAlign();
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return () => {
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mergedList.forEach(scroller => {
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scroller.removeEventListener('scroll', notifyScroll);
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win.removeEventListener('resize', notifyScroll);
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});
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};
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}
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}, [open, target, popup]);
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} |