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Test Info:

<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<title>Test for Bug 1170911</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<script src="/tests/SimpleTest/WindowSnapshot.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<p id="display"></p>
<div id="content">
<textarea>textarea text</textarea>
</div>
<pre id="test">
<script>
const TEXTAREA = document.querySelector('textarea');
const TEXTAREA_VALUE = TEXTAREA.value;
function doTest() {
is(document.queryCommandSupported("copy"), false,
"Copy support should have been disabled");
is(document.queryCommandSupported("cut"), false,
"Cut support should have been disabled");
document.addEventListener("keydown", tryCopy);
sendString("Q");
}
function tryCopy(evt) {
evt.preventDefault();
document.removeEventListener("keydown", tryCopy);
TEXTAREA.setSelectionRange(0, TEXTAREA_VALUE.length);
TEXTAREA.focus();
SimpleTest.waitForClipboard(null, function () {
is(document.queryCommandEnabled("copy"), false,
"Copy should not be allowed when dom.allow_cut_copy is off");
is(document.execCommand("copy"), false,
"Copy should not be executed when dom.allow_cut_copy is off");
is(TEXTAREA.value, TEXTAREA_VALUE,
"Content in the textarea shouldn't be changed");
TEXTAREA.value = TEXTAREA_VALUE;
},
/* success fn */ SimpleTest.finish,
/* failure fn */ function () {
document.addEventListener("keydown", tryCut);
sendString("Q");
},
/* flavor */ undefined,
/* timeout */ undefined,
/* expect failure */ true);
}
function tryCut(evt) {
evt.preventDefault();
document.removeEventListener("keydown", tryCut);
TEXTAREA.setSelectionRange(0, TEXTAREA_VALUE.length);
TEXTAREA.focus();
SimpleTest.waitForClipboard(null, function () {
is(document.queryCommandEnabled("cut"), false,
"Cut should not be allowed when dom.allow_cut_copy is off");
is(document.execCommand("cut"), false,
"Cut should not be executed when dom.allow_cut_copy is off");
is(TEXTAREA.value, TEXTAREA_VALUE,
"Content in the textarea shouldn't be changed");
},
/* success fn */ SimpleTest.finish,
/* failure fn */ SimpleTest.finish,
/* flavor */ undefined,
/* timeout */ undefined,
/* expect failure */ true);
}
SimpleTest.waitForExplicitFinish();
SimpleTest.waitForFocus(() => {
SpecialPowers.pushPrefEnv({"set": [["dom.allow_cut_copy", false]]}, doTest);
});
</script>
</pre>
</body>
</html>