1 | 'use strict';
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2 |
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3 | exports.__esModule = true;
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4 | exports.default = scrollIntoView;
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5 |
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6 | var _vue = require('vue');
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7 |
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8 | var _vue2 = _interopRequireDefault(_vue);
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9 |
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10 | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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11 |
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12 | function scrollIntoView(container, selected) {
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13 | if (_vue2.default.prototype.$isServer) return;
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14 |
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15 | if (!selected) {
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16 | container.scrollTop = 0;
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17 | return;
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18 | }
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19 |
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20 | var offsetParents = [];
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21 | var pointer = selected.offsetParent;
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22 | while (pointer && container !== pointer && container.contains(pointer)) {
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23 | offsetParents.push(pointer);
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24 | pointer = pointer.offsetParent;
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25 | }
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26 | var top = selected.offsetTop + offsetParents.reduce(function (prev, curr) {
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27 | return prev + curr.offsetTop;
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28 | }, 0);
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29 | var bottom = top + selected.offsetHeight;
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30 | var viewRectTop = container.scrollTop;
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31 | var viewRectBottom = viewRectTop + container.clientHeight;
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32 |
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33 | if (top < viewRectTop) {
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34 | container.scrollTop = top;
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35 | } else if (bottom > viewRectBottom) {
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36 | container.scrollTop = bottom - container.clientHeight;
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37 | }
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38 | } |
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