zent
Version:
一套前端设计语言和基于React的实现
32 lines (31 loc) • 892 B
JavaScript
import noop from '../utils/noop';
export default function toggleSelection() {
var selection = document.getSelection();
if (!selection.rangeCount) {
return noop;
}
var active = document.activeElement;
var ranges = [];
for (var i = 0; i < selection.rangeCount; i++) {
ranges.push(selection.getRangeAt(i));
}
switch (active.tagName.toUpperCase()) {
case 'INPUT':
case 'TEXTAREA':
active.blur();
break;
default:
active = null;
break;
}
selection.removeAllRanges();
return function restoreSelection() {
selection.type === 'Caret' && selection.removeAllRanges();
if (!selection.rangeCount) {
ranges.forEach(function (range) {
selection.addRange(range);
});
}
active && active.focus();
};
}