Element: copy event
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2017.
The copy
event of the Clipboard API fires when the user initiates a copy action through the browser's user interface.
The event's default action is to copy the selection (if any) to the clipboard.
A handler for this event can modify the clipboard contents by calling setData(format, data)
on the event's ClipboardEvent.clipboardData
property, and cancelling the event's default action using event.preventDefault()
.
However, the handler cannot read the clipboard data.
It's possible to construct and dispatch a synthetic copy
event, but this will not affect the system clipboard.
This event bubbles, is cancelable and is composed.
Syntax
Use the event name in methods like addEventListener()
, or set an event handler property.
addEventListener("copy", (event) => {});
oncopy = (event) => {};
Event type
A ClipboardEvent
. Inherits from Event
.
Examples
Live example
HTML
<div class="source" contenteditable="true">Copy text from this box.</div>
<div class="target" contenteditable="true">And paste it into this one.</div>
JavaScript
const source = document.querySelector("div.source");
source.addEventListener("copy", (event) => {
const selection = document.getSelection();
event.clipboardData.setData("text/plain", selection.toString().toUpperCase());
event.preventDefault();
});
Result
Specifications
Specification |
---|
Clipboard API and events # clipboard-event-copy |
HTML Standard # handler-oncopy |
Browser compatibility
BCD tables only load in the browser