test_execCommandPaste_noTarget.html

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<!DOCTYPE HTML>

<html>

<head>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <script src="/tests/SimpleTest/EventUtils.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>

</head>

<body>

<script>

  add_task(async function() {

    let seenPaste = false;

    let seenCopy = false;

    document.addEventListener("copy", function oncpy(e) {

      e.clipboardData.setData("text/plain", "my text");

      e.preventDefault();

      seenCopy = true;

    }, {once: true});

    document.addEventListener("paste", function onpst(e) {

      is(e.clipboardData.getData("text/plain"), "my text",

         "The correct text was read from the clipboard");

      e.preventDefault();

      seenPaste = true;

    }, {once: true});

    ok(SpecialPowers.wrap(document).execCommand("copy"),

       "Call should succeed");

    ok(seenCopy, "Successfully copied the text to the clipboard");

    ok(SpecialPowers.wrap(document).execCommand("paste"),

       "Call should succeed");

    ok(seenPaste, "Successfully read text from the clipboard");

    // Check that reading text from the clipboard in non-privileged contexts

    // still doesn't work.

    function onpstfail() {

      ok(false, "Should not see paste event triggered by non-privileged call");

    document.addEventListener("paste", onpstfail);

    ok(!document.execCommand("paste"), "Call should fail");

    document.removeEventListener("paste", onpstfail);

});

</script>

</body>

</html>