<!doctype html>
<meta charset="utf-8">
<title>Clipboard: DataTransfer File manual test</title>
<link rel="help" href="https://w3c.github.io/clipboard-apis/#to-fire-a-clipboard-event">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
#pastewrapper {
display: block;
width: 400px;
height: 200px;
position: relative;
padding: 50px 0 0 100px;
}
#pastezone {
display: block;
border: 1px solid black;
width: 200px;
height: 100px;
}
</style>
<p>
Please download <a download href="resources/copied-file.txt">this file</a>,
and copy and paste it into the box below.
</p>
<div id="pastewrapper">
<div id="pastezone">
Paste Here
</div>
</div>
<script>
'use strict';
const pasteWrapper = document.querySelector('#pastewrapper');
const pasteZone = document.querySelector('#pastezone');
const pastePromise = new Promise((resolve, reject) => {
pasteZone.onpaste = event => {
event.preventDefault();
// Copy the information out of the DataTransfer instance before it is
// neutered when the event handler exits.
const dataTransfer = event.clipboardData;
const items = Array.from(dataTransfer.items).map(item => {
return {kind: item.kind, type: item.type, file: item.getAsFile() };
});
resolve({ types: dataTransfer.types, files: dataTransfer.files, items });
};
});
promise_test(async () => {
const dataTransfer = await pastePromise;
assert_true(dataTransfer.types.includes('Files'));
}, 'DataTransfer.types in paste file');
promise_test(async () => {
const dataTransfer = await pastePromise;
assert_equals(
dataTransfer.files.length, 1,
'DataTransfer.files should have one element');
const file = dataTransfer.files[0];
assert_true(
file instanceof File,
'DataTransfer.files[0] should be a File instance');
assert_equals(file.name, 'copied-file.txt');
assert_equals(file.type, 'text/plain');
assert_equals(file.size, 21);
assert_equals(await file.text(), 'copied-file-contents\n');
}, 'DataTransfer.files in paste');
promise_test(async () => {
const dataTransfer = await pastePromise;
const items = dataTransfer.items.filter(i => i.kind === 'file');
assert_equals(items.length, 1,
'DataTransfer.items[kind="file"] should have 1 element');
const item = items[0];
assert_true(
item.file instanceof File,
'DataTransfer.items[0] should be a File instance');
assert_equals(item.file.name, 'copied-file.txt');
assert_equals(item.file.type, 'text/plain');
assert_equals(item.file.size, 21);
assert_equals(await item.file.text(), 'copied-file-contents\n');
}, 'DataTransfer.items in paste');
</script>
Codebase Browser
chromium