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diff --git a/layout/base/tests/bug585922.html b/layout/base/tests/bug585922.html
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+++ b/layout/base/tests/bug585922.html
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+<!DOCTYPE html>
+<html class="reftest-wait">
+ <head>
+ <script src="/tests/SimpleTest/EventUtils.js"></script>
+ </head>
+ <body onload="doTest()">
+ <input type=text style="-moz-appearance: none">
+ <script>
+ function doTest() {
+ function enableCaret(aEnable) {
+ var selCon = editor.selectionController;
+ selCon.setCaretEnabled(aEnable);
+ }
+
+ var d = document.querySelector("input");
+ d.value = "a";
+ d.focus();
+ var editor = SpecialPowers.wrap(d).editor;
+ var sel = editor.selection;
+ var t = editor.rootElement.firstChild;
+ sel.collapse(t, 1); // put the caret at the end of the div
+ setTimeout(function() {
+ enableCaret(false);enableCaret(true);// force a caret display
+ enableCaret(false); // hide the caret
+ t.replaceData(0, 1, "b"); // replace the text node data
+ // at this point, the selection is collapsed to offset 0
+ synthesizeQuerySelectedText(); // call nsCaret::GetGeometry
+ sel.collapse(t, 1); // put the caret at the end again
+ enableCaret(true); // show the caret again
+ document.documentElement.removeAttribute("class");
+ }, 0);
+ }
+ </script>
+ </body>
+</html>