test_droppedLinkHandler.xhtml

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<html xmlns="http://www.w3.org/1999/xhtml">

<head>

  <meta charset="utf-8" />

  <title>droppedLinkHandler test</title>

  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>

  <script><![CDATA[

    add_task(async function test_plaintext() {

      let dataTransfer = new DataTransfer();

      let plaintext, links;

      const threeURIs = `

https://example.com/1

https://example.com/2

https://example.com/3

`;

      plaintext = "\n \t\r\n";

      dataTransfer.setData("text/plain", plaintext);

      links = Services.droppedLinkHandler.queryLinks(dataTransfer);

      ok(!links.length, "No URI is added for pure whitespace.");

      plaintext = "not a uri\nnot a uri";

      dataTransfer.setData("text/plain", plaintext);

      links = Services.droppedLinkHandler.queryLinks(dataTransfer);

      ok(links.length == 1, "Text is added as a single entry.");

      plaintext = threeURIs

      dataTransfer.setData("text/plain", plaintext);

      links = Services.droppedLinkHandler.queryLinks(dataTransfer);

      ok(links.length == 3, "Each URI is added.");

      let manyComments = Array(100).fill("# comment").join("\n");

      plaintext = manyComments + "\n" + plaintext;

      dataTransfer.setData("text/plain", plaintext);

      links = Services.droppedLinkHandler.queryLinks(dataTransfer);

      ok(links.length == 3, "Comments are ignored.");

      plaintext = [

        threeURIs,

        ...Array(5).fill("This is not a URI."),

        threeURIs,

        ...Array(100).fill("This is not a URI."),

        threeURIs,

      ].join("\n");

      dataTransfer.setData("text/plain", plaintext);

      links = Services.droppedLinkHandler.queryLinks(dataTransfer);

      console.log(links)

      ok(links.length == 6, "Stops adding URIs after seeing too much junk.");

});

  ]]></script>

</head>

<body>

<p id="display"></p>

<div id="content" style="display: none"></div>

<pre id="test"></pre>

</body>

</html>