38 lines
864 B
TypeScript
38 lines
864 B
TypeScript
/*
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* https://github.com/morethanwords/tweb
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* Copyright (C) 2019-2021 Eduard Kuzmenko
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* https://github.com/morethanwords/tweb/blob/master/LICENSE
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*/
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import cancelSelection from './dom/cancelSelection';
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export default class SelectionSaver {
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private input: HTMLElement;
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private range: Range;
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public save(input = document.activeElement as HTMLElement) {
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if(input.isContentEditable || input.tagName === 'INPUT') {
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this.input = input;
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}
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const selection = document.getSelection();
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if(!selection.rangeCount) {
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return;
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}
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this.range = selection.getRangeAt(0);
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}
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public restore(focus?: boolean) {
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if(!this.range) {
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cancelSelection();
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return;
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}
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const selection = window.getSelection();
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selection.removeAllRanges();
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selection.addRange(this.range);
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focus && this.input?.focus();
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}
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}
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