85 lines
2.2 KiB
TypeScript
85 lines
2.2 KiB
TypeScript
/**
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* Function to Copy a String to the Clipboard
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* @param input
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*/
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export function writeToClipboard(input: string){
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const element = document.createElement('textarea');
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const previouslyFocusedElement = document.activeElement as any;
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element.value = input;
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// Prevent keyboard from showing on mobile
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element.setAttribute('readonly', '');
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element.style.position = 'absolute';
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element.style.left = '-9999px';
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element.style.fontSize = '12pt'; // Prevent zooming on iOS
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const selection = document.getSelection();
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let originalRange: any = false;
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if (selection.rangeCount > 0) {
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originalRange = selection.getRangeAt(0);
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}
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document.body.append(element);
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element.select();
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// Explicit selection workaround for iOS
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element.selectionStart = 0;
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element.selectionEnd = input.length;
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let isSuccess = false;
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try {
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isSuccess = document.execCommand('copy');
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} catch (_) {}
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element.remove();
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if (originalRange) {
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selection.removeAllRanges();
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selection.addRange(originalRange);
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}
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// Get the focus back on the previously focused element, if any
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if (previouslyFocusedElement) {
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previouslyFocusedElement.focus();
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}
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return isSuccess;
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}
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/**
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* Function to Read from Clipboard. Returns a String.
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*/
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export function readFromClipboard(){
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const id = 'paster'+Date.now().toString();
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const element = document.createElement('textarea');
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const previouslyFocusedElement = document.activeElement as any;
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// Prevent keyboard from showing on mobile
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// element.setAttribute('readonly', '');
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element.style.position = 'absolute';
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element.style.left = '300px';
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element.style.fontSize = '12pt'; // Prevent zooming on iOS
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element.setAttribute('id', id);
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document.body.append(element);
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document.getElementById(id).focus();
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(document.getElementById(id) as any).select();
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document.execCommand('paste', true);
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const text: string = element.textContent;
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// Get the focus back on the previously focused element, if any
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if (previouslyFocusedElement) {
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previouslyFocusedElement.focus();
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}
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// Remove the Text
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element.parentNode.removeChild(element);
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return text;
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} |