[WICKET-5959] HTML input placeholder text breaks AutoCompleteTextField in IE11

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 6.20.0
• Fix Version/s: 6.21.0, 7.1.0
• Component/s: wicket-extensions
• Environment: Windows 8.1 + Internet Explorer 11
• Assignee: Sven Meier
• Reporter: Remy Kaufmann
• Created: 31/Jul/15 13:25
• Updated: 11/Aug/15 12:56
• Resolved: 10/Aug/15 12:57

Description

Reproduction steps are provided below:

1. Configure an AutoCompleteTextField so that the suggestion list shows on focus gain, and shows even if the input is still empty.
2. Link the AutoCompleteTextField to an HTML input element that has a value assigned to its "placeholder" attribute.
3. Embed the AutoCompleteTextField on a webpage, and open the webpage in Internet Explorer 11.
4. Click on the HTML input so that it receives focus. Do not enter any text.
5. Click on an item from the AutoComplete dropdown list. Observe that nothing happens.

Opening the console reveals that an error has occurred in the "getSelectedValue()" function in the "wicket-autocomplete.js" file. The error is caused by the fact that the variable "selected" has a value of "-1", which causes the "getSelectableElement(selected)" call to go wrong and return "undefined".

I have recreated the issue in a Quickstart.

Issue Links

• contains: WICKET-5432 OnChangeAjaxBehavior continually triggered in IE11
• is related to: WICKET-5432 OnChangeAjaxBehavior continually triggered in IE11