1 files changed, 125 insertions, 0 deletions
diff --git a/dom/events/test/test_focus_disabled.html b/dom/events/test/test_focus_disabled.html
new file mode 100644
index 000000000..52748226a
--- /dev/null
+++ b/dom/events/test/test_focus_disabled.html
@@ -0,0 +1,125 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=375008
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 375008</title>
+  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=375008">Mozilla Bug 375008</a>
+<p id="display"></p>
+<div id="content">
+  <div id='not-focusable'>
+    <!-- Disabled elements -->
+    <button hidden disabled>foo</button>
+    <input hidden disabled>
+    <fieldset hidden disabled>foo</fieldset>
+    <select hidden disabled><option>foo</option></select>
+    <textarea hidden disabled></textarea>
+    <optgroup hidden disabled><option>foo</option></optgroup>
+    <option hidden disabled>foo</option>
+  </div>
+
+  <div id='focusable'>
+    <button hidden>foo</button>
+    <input hidden>
+    <select hidden><option>foo</option></select>
+    <textarea hidden></textarea>
+
+    <!-- Those elements are not focusable by default. -->
+    <fieldset tabindex=1 hidden>foo</fieldset>
+    <optgroup tabindex=1 hidden><option>foo</option></optgroup>
+    <option tabindex=1 hidden>foo</option>
+  </div>
+
+  <!-- Hidden elements, they have a frame but focus will go through them. -->
+  <div id='hidden' style='visibility: hidden;'>
+    <button hidden>foo</button>
+    <input hidden>
+    <fieldset hidden>foo</fieldset>
+    <select hidden><option>foo</option></select>
+    <textarea hidden></textarea>
+    <optgroup hidden><option>foo</option></optgroup>
+    <option hidden>foo</option>
+  </div>
+
+  <div>
+    <input id='witness'>
+  </div>
+
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 375008 **/
+
+/*
+ * This test is divided in three parts:
+ * - cases where focus isn't doable but blur should not happen;
+ * - cases where focus is doable;
+ * - cases where focus isn't doable but blur should still happen.
+ */
+
+SimpleTest.waitForExplicitFinish();
+SimpleTest.waitForFocus(function() {
+  // On Mac, this preference needs to be turned on to be able to focus all the
+  // form controls we want to focus.
+  SpecialPowers.pushPrefEnv({"set": [[ "accessibility.mouse_focuses_formcontrol", true ]]},
+                            runTest);
+});
+
+function runTest()
+{
+  var witness = document.getElementById('witness');
+  witness.focus();
+
+  var notFocusableElements = document.getElementById('not-focusable').children;
+  for (var i=0; i<notFocusableElements.length; ++i) {
+    var element = notFocusableElements[i];
+    element.hidden = false;
+    synthesizeMouseAtCenter(element, {});
+    is(document.activeElement, witness,
+       "[" + element.tagName + "] witness should still be focused");
+
+    // Cleanup.
+    element.hidden = true;
+    witness.focus();
+  }
+
+  var focusableElements = document.getElementById('focusable').children;
+  for (var i=0; i<focusableElements.length; ++i) {
+    var element = focusableElements[i];
+    element.hidden = false;
+    synthesizeMouseAtCenter(element, {});
+    is(document.activeElement, element, "focus should have moved to " + element);
+
+    // Cleanup.
+    element.hidden = true;
+    witness.focus();
+  }
+
+  var hiddenElements = document.getElementById('hidden').children;
+  for (var i=0; i<hiddenElements.length; ++i) {
+    var element = hiddenElements[i];
+    element.hidden = false;
+    synthesizeMouseAtCenter(element, {});
+    is(document.activeElement, document.body,
+       "focus should have moved to the body");
+
+    // Cleanup.
+    element.hidden = true;
+    witness.focus();
+  }
+
+  SimpleTest.finish();
+}
+
+</script>
+</pre>
+</body>
+</html>