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https://issues.apache.org/jira/browse/WICKET-7104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17839491#comment-17839491
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ASF subversion and git services commented on WICKET-7104:
---------------------------------------------------------

Commit 1c15e83c348d5001414a0aaa64da114ca1692007 in wicket's branch 
refs/heads/master from Martin Tzvetanov Grigorov
[ https://gitbox.apache.org/repos/asf?p=wicket.git;h=1c15e83c34 ]

WICKET-7104: Use JavaScript dynamic resolution of the first function parameter

Using the parameter name (i.e. 'input') does not work after JS
minification.
Using `arguments[0]` does not depend on the parameter name and should
work in both minified and non-minified JavaScript.

Signed-off-by: Martin Tzvetanov Grigorov <mgrigo...@apache.org>


> wicket-autocomplete.min.js minified too aggressively
> ----------------------------------------------------
>
>                 Key: WICKET-7104
>                 URL: https://issues.apache.org/jira/browse/WICKET-7104
>             Project: Wicket
>          Issue Type: Bug
>          Components: wicket-extensions
>    Affects Versions: 9.16.0, 10.0.0, 9.17.0
>            Reporter: Florian Wunderlich
>            Priority: Major
>
> Since at least Wicket 9.16.0, the minified wicket-autocomplete.min.js is 
> broken.
> {{Javadoc AbstractAutoCompleteRenderer#getOnSelectJavaScriptExpression:}}
> {{[...]}}
> {{     * the current text value will be in variable 'input'.}}
> {{     * }}
> {{     * If the function returns <code>null</code> the chosen text value will 
> be ignored.}}
> {{     * <p/>}}
> {{     * example 1:}}
> {{     * }}
> {{     * <pre>}}
> {{     * protected CharSequence getOnSelectJavaScript(Address address)}}
> {{     * {}}
> {{     *     final StringBuilder js = new StringBuilder();}}
> {{     *     js.append("wicketGet('street').value ='" + address.getStreet() + 
> "';");}}
> {{     *     js.append("wicketGet('zipcode').value ='" + address.getZipCode() 
> + "';");}}
> {{     *     js.append("wicketGet('city').value ='" + address.getCity() + 
> "';");}}
> {{     *     js.append("{color:#ff0000}*input*{color}"); // <-- do not use 
> return statement here!}}
> {{     *     return js.toString();}}
> {\{     * }}}
> {{     * </pre>}}
> {{[...]}}
> wicket-autocomplete.js source:
> function handleSelection({color:#ff0000}*input*{color}) {
>   var attr = getSelectableElement(selected).attributes.onselect;
>   return attr ? eval(attr.value) : {color:#ff0000}*input*{color};
> }
> Minified wicket-autocomplete.min.js, 9.7.0:
> function handleSelection({color:#ff0000}*input*{color}){var 
> attr=getSelectableElement(selected).attributes.onselect;return 
> attr?eval(attr.value):{color:#ff0000}{*}input{*}{color:#172b4d}}{color}
> {color:#172b4d}Minified wicket-autocomplete.min.js, 9.16.0, 9.17.0 and 
> 10.0.0:{color}
> {color:#172b4d}function O({color}{*}d{*}{color})\{var 
> a=J(p).attributes.onselect;return a?eval(a.value):d}
> There is no "input" parameter anymore. Minification is too aggressive and 
> breaks this functionality, which {*}only happens in production{*}, since in 
> development the non-minimized source JS files will be used.
> Workaround: set 
> Application.get().getResourceSettings().getUseMinifiedResources() to false 
> when deploying into production.



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