2a09d1a4
 liuqimichale
添加宜春 天水 宣化
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'use strict';
exports.__esModule = true;
exports.removeResizeListener = exports.addResizeListener = undefined;
var _resizeObserverPolyfill = require('resize-observer-polyfill');
var _resizeObserverPolyfill2 = _interopRequireDefault(_resizeObserverPolyfill);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
var isServer = typeof window === 'undefined';
/* istanbul ignore next */
var resizeHandler = function resizeHandler(entries) {
for (var _iterator = entries, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
var _ref;
if (_isArray) {
if (_i >= _iterator.length) break;
_ref = _iterator[_i++];
} else {
_i = _iterator.next();
if (_i.done) break;
_ref = _i.value;
}
var entry = _ref;
var listeners = entry.target.__resizeListeners__ || [];
if (listeners.length) {
listeners.forEach(function (fn) {
fn();
});
}
}
};
/* istanbul ignore next */
var addResizeListener = exports.addResizeListener = function addResizeListener(element, fn) {
if (isServer) return;
if (!element.__resizeListeners__) {
element.__resizeListeners__ = [];
element.__ro__ = new _resizeObserverPolyfill2.default(resizeHandler);
element.__ro__.observe(element);
}
element.__resizeListeners__.push(fn);
};
/* istanbul ignore next */
var removeResizeListener = exports.removeResizeListener = function removeResizeListener(element, fn) {
if (!element || !element.__resizeListeners__) return;
element.__resizeListeners__.splice(element.__resizeListeners__.indexOf(fn), 1);
if (!element.__resizeListeners__.length) {
element.__ro__.disconnect();
}
};
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