mozilla-central/dom/html/test/forms/test_input_number_focus.html (file symbol)

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Test Info:

<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<title>Test focus behaviour for &lt;input type='number'&gt;</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<style>
#input_test_style_display {
display: none;
}
</style>
</head>
<body>
<p id="display"></p>
<div id="content">
<input id="input_test_redirect" type="number">
<input id="input_test_style_display" type="number" >
</div>
<pre id="test">
<script type="application/javascript">
/**
* Test for Bug 1268556.
* This test checks that when focusing on an input type=number, the focus is
* redirected to the anonymous text control, but the document.activeElement
* still returns the <input type=number>.
*
* Tests for bug 1057858.
* Checks that adding an element and immediately focusing it triggers exactly
* one "focus" event and no "blur" events. The same for switching
* `style.display` from `none` to `block`.
**/
SimpleTest.waitForExplicitFinish();
SimpleTest.waitForFocus(function() {
test_focus_redirects_to_text_control_but_not_for_activeElement();
test_add_element_and_focus_check_one_focus_event();
test_style_display_none_change_to_block_check_one_focus_event();
SimpleTest.finish();
});
function test_focus_redirects_to_text_control_but_not_for_activeElement() {
document.activeElement.blur();
var number = document.getElementById("input_test_redirect");
number.focus();
// The active element returns the input type=number.
var activeElement = document.activeElement;
is (activeElement, number, "activeElement should be the number element");
is (activeElement.localName, "input", "activeElement should be an input element");
is (activeElement.getAttribute("type"), "number", "activeElement should of type number");
// Use FocusManager to check that the actual focus is on the anonymous
// text control.
var fm = SpecialPowers.Cc["@mozilla.org/focus-manager;1"]
.getService(SpecialPowers.Ci.nsIFocusManager);
var focusedElement = fm.focusedElement;
is (focusedElement.localName, "input", "focusedElement should be an input element");
is (focusedElement.getAttribute("type"), "number", "focusedElement should of type number");
}
var blurEventCounter = 0;
var focusEventCounter = 0;
function append_input_element_with_event_listeners_to_dom() {
var inputElement = document.createElement("input");
inputElement.type = "number";
inputElement.addEventListener("blur", function() { ++blurEventCounter; });
inputElement.addEventListener("focus", function() { ++focusEventCounter; });
var content = document.getElementById("content");
content.appendChild(inputElement);
return inputElement;
}
function test_add_element_and_focus_check_one_focus_event() {
document.activeElement.blur();
var inputElement = append_input_element_with_event_listeners_to_dom();
blurEventCounter = 0;
focusEventCounter = 0;
inputElement.focus();
is(blurEventCounter, 0, "After focus: no blur events observed.");
is(focusEventCounter, 1, "After focus: exactly one focus event observed.");
}
function test_style_display_none_change_to_block_check_one_focus_event() {
document.activeElement.blur();
var inputElement = document.getElementById("input_test_style_display");
inputElement.addEventListener("blur", function() { ++blurEventCounter; });
inputElement.addEventListener("focus", function() { ++focusEventCounter; });
blurEventCounter = 0;
focusEventCounter = 0;
inputElement.style.display = "block";
inputElement.focus();
is(blurEventCounter, 0, "After focus: no blur events observed.");
is(focusEventCounter, 1, "After focus: exactly one focus event observed.");
}
</script>
</pre>
</body>
</html>