Troubles with the Hidden widget...

[Nanawel]

Hi everybody,

I'm developping a new application for eyeOS but I encounter some troubles to stabilize it.
After several loooong hours debugging the different points, I discovered that sometimes, when I use the setText() method on a Hidden widget, the value is not well saved!
What I find very strange is that it does not happen all the time, but randomly during the execution.

To sum up a little what I do:
I use a Hidden widget to store a serialized array. When I need a value, I unserialize the text and pick the data up. But sometimes I also need to delete a cell of the array. So I unserialize it into a variable, unset the cell I want to remove, then serialize the array again and store it in the Hidden widget.
Most of the time, it works. But sometimes, it doesn't.
So when I check if the array is empty in a next request, the cell is still here so the behaviour is not what I expect...

Did someone experience the same problem? And who do know how to solve it?

Thanks in advance

[AnthongRedbeard]

make sure you are calling setText() after Show() or else the object won't exist.

make sure it has a globallly unique name.

I have found instances where the content makes a difference in whether or not it will work. For example, the Lable widget won't allow any line returns, so I had to add something to strip them out before applying it to the widget.

-Anthong

[Nanawel]

make sure you are calling setText() after Show() or else the object won't exist.
make sure it has a globallly unique name.

I already checked that before, but it doesn't seem to be the problem...
Thanks for your help anyway

Another suggestion?

[ben-fr34]

I have same proble with it :
If i put a XML structure in a hidden widget, i can't get the value.

[Lars Knickrehm]

I think the problem with the xml structure is because we're using UTF-8 and so there problems with < and > ...

Use htmlentities($myvarFORhidden, ENT_QUOTES,'UTF-8'); for creating the HTML code and use html_entity_decode($myvarFROMhidden, ENT_QUOTES,'UTF-8'); for creatting the default sting.

That should work, or?

[ben-fr34]

It was a part of my problem.

for inject array into a hidden widget, I've unse this function :
function array2HiddenText($array){

   //transform array to XML.
   $sTbl = getArrayText($array,-1,1);

   $sTbl = str_replace("\t", '', $sTbl);
   $sTbl = str_replace("\n", '', $sTbl);

   return htmlentities($sTbl, ENT_QUOTES);
}

If I use hidden widget with "htmlentities" in UFT-8, i have a proble with other caracters (as é, à, ç, è...)... Sorry, I'm french...

[Lars Knickrehm]

I know (German: äöüß ), but that should work! You need to use 'UTF-8' for the third parameter for htmlentinities! So your code should be like this:

Code:

function array2HiddenText($array){

   //transform array to XML.
   $sTbl = getArrayText($array,-1,1);

   $sTbl = str_replace("\t", '', $sTbl);
   $sTbl = str_replace("\n", '', $sTbl);

   return htmlentities($sTbl, ENT_QUOTES,'UTF-8');
}

Does it work? It should work!

[Nanawel]

Personally I'm not using special characters (because my array only holds md5 sums, so digits and ASCII letters).
But nom it makes me think about a problem Jose solved a few days back when I told him about my problems with getXmlConfig(). It could come from a cache problem. I'm not sure about that but I'll try to search in this direction.

[ben-fr34]

It doesn't work with 'UTF-8' : this codage generate other special caracters incompatible with the hidden widget.

it be sure, if you have '<' ou '>' un your text, the hidden widget is not usable.

[Nanawel]

What follows doesn't concern the Hidden widget but it may be applied to any encoding problem experienced with widgets.

In eyeFTP, I was forced to use this to prevent "undefined entity" in Firefox:

Code:

eyeX('rawjs',array('js' => 'document.getElementById("'.$myPid.'_eyeFTP_path_TXTBOX").value=Base64.decode("'.base64_encode($dir).'");'));

The element "eyeFTP_path_TXTBOX" is a basic textbox widget, but if I used "setText()" some characters seem to cause an error in the browser. So I replaced the line

Code:

$GLOBALS['eyeFTP_path_TXTBOX']->setText($dir);

by the previous one and.... it works.
Maybe it could help you but I'm not sure.

I forgot to mention it as a potential bug. I'll do it soon.

[Lars Knickrehm]

Maybe the hidden widget should en/decode the text by its own..., or?