Joomla! Programmierung/Framework/JHtmlList/images

Erstellt eine "Select" Liste mit einer Auswahl an Bildern.

Syntax

static string images( $name, $active, $javascript, $directory, $extensions )

Parameter	Datentyp	Beschreibung	Standardwert
$name	string	Der Name der Liste.
$active	string	Der Bild, das als "selected" markiert sein soll.	null
$javascript	string	Beliebiger Javascriptcode, der den Standardcode ersetzt.	null
$directory	string	Der Pfad zum Ordner.	null
$extensions	string	Erlaubte Dateiendungen.	bmp|gif|jpg|png

Beispiele

Bilderliste ausgeben

$row = new StdClass();
$name = 'image';
$image = '';
 
echo JHTML::_('list.images',  $name, $image );

Ausgabe:

<select name="image" id="image" class="inputbox" size="1"
onchange="javascript:if (document.forms.adminForm.image.options[selectedIndex].value!='')
{document.imagelib.src='../images/stories/' + document.forms.adminForm.image.options[selectedIndex].value}
else {document.imagelib.src='../images/blank.png'}">
    <option value=""  selected="selected">- Bild wählen -</option>
    <option value="articles.jpg" >articles.jpg</option>
    <option value="clock.jpg" >clock.jpg</option>
    <option value="ext_com.png" >ext_com.png</option>
    <option value="ext_lang.png" >ext_lang.png</option>
    <option value="ext_mod.png" >ext_mod.png</option>
    <option value="ext_plugin.png" >ext_plugin.png</option>
    <option value="joomla-dev_cycle.png" >joomla-dev_cycle.png</option>
    <option value="key.jpg" >key.jpg</option>
    <option value="pastarchives.jpg" >pastarchives.jpg</option>
    <option value="powered_by.png" >powered_by.png</option>
    <option value="taking_notes.jpg" >taking_notes.jpg</option>
    <option value="web_links.jpg" >web_links.jpg</option>
</select>

Quellcode

 libraries

•  joomla
  •  html
    •  html
      •  list.php

public static function images($name, $active = null, $javascript = null, $directory = null, $extensions = "bmp|gif|jpg|png")
{
   if (!$directory)
   {
      $directory = '/images/';
   }
 
   if (!$javascript)
   {
      $javascript = "onchange=\"if (document.forms.adminForm." . $name
         . ".options[selectedIndex].value!='') {document.imagelib.src='..$directory' + document.forms.adminForm." . $name
         . ".options[selectedIndex].value} else {document.imagelib.src='media/system/images/blank.png'}\"";
   }
 
   jimport('joomla.filesystem.folder');
   $imageFiles = JFolder::files(JPATH_SITE . '/' . $directory);
   $images = array(JHtml::_('select.option', '', JText::_('JOPTION_SELECT_IMAGE')));
 
   foreach ($imageFiles as $file)
   {
      if (preg_match('#(' . $extensions . ')$#', $file))
      {
         $images[] = JHtml::_('select.option', $file);
      }
   }
 
   $images = JHtml::_(
      'select.genericlist',
      $images,
      $name,
      array(
         'list.attr' => 'class="inputbox" size="1" ' . $javascript,
         'list.select' => $active
      )
   );
 
   return $images;
}

Siehe auch

• JHtmlList->images auf api.joomla.org
• JHtml::_