How to read macro control data using JavaScript?

Reading macro control data in JavaScript requires the use of navigator.clipboard API. Steps: Import necessary libraries: import {clipboard} from '@angular/cdk/clipboard'. Get macro control data: clipboard.paste().then((data) => {...}).

Use JavaScript to read macro control data

The macro control is a special mechanism provided by the operating system that allows applications to A standardized and language-independent way to access and exchange data. In JavaScript, reading macro control data requires using the navigator.clipboard API.

Steps:

1. Import necessary libraries:

import {clipboard} from '@angular/cdk/clipboard';

2. Get macro control data:

clipboard.paste().then((data) => {
  // data 是剪贴板中的数据，可以使用文本格式或其他格式
});

Practical case:

Suppose we have a text input box, when the user copies the text and pastes it into the input box When we need to read the clipboard data. We can use the following code to achieve:

const input = document.getElementById('my-input');
const pasteHandler = (e) => {
  clipboard.paste().then((data) => {
    input.value = data.text;
  });
};
input.addEventListener('paste', pasteHandler);

In this way, when the user pastes text into the input box, the pasteHandler function will be triggered, read the text data from the clipboard and set it into the input box.

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