amis-rpc-design/node_modules/toggle-selection/index.js
2023-10-07 19:42:30 +08:00

40 lines
780 B
JavaScript

module.exports = function () {
var selection = document.getSelection();
if (!selection.rangeCount) {
return function () {};
}
var active = document.activeElement;
var ranges = [];
for (var i = 0; i < selection.rangeCount; i++) {
ranges.push(selection.getRangeAt(i));
}
switch (active.tagName.toUpperCase()) { // .toUpperCase handles XHTML
case 'INPUT':
case 'TEXTAREA':
active.blur();
break;
default:
active = null;
break;
}
selection.removeAllRanges();
return function () {
selection.type === 'Caret' &&
selection.removeAllRanges();
if (!selection.rangeCount) {
ranges.forEach(function(range) {
selection.addRange(range);
});
}
active &&
active.focus();
};
};