/**
* Parses and intantiates templates.
* This method is invoked when <b>OnDataBinding</b> event is raised.
* It parses and instantiates all assoicated templates for the
* data listing control and raises related events.
* This method should only used by control developers.
* @param TEventParameter event parameter
*/
protected function onDataBinding($param)
{
parent::onDataBinding($param);
$this->setViewState('Items', null, null);
$this->removeChildren();
$this->removeBodies();
$this->items->clear();
$this->separators->clear();
$this->header = null;
$this->footer = null;
if (is_null($this->dataSource)) {
return;
}
if (strlen($this->headerTemplate)) {
$this->header = $this->createComponent('TDataListItem', self::ID_HEADER);
$this->header->setType(TDataListItem::TYPE_HEADER);
$this->header->instantiateTemplate($this->headerTemplate);
$this->addBody($this->header);
$p = new TDataListItemEventParameter();
$p->item = $this->header;
$this->onItemCreated($p);
}
$selectedIndex = $this->getSelectedItemIndex();
$editIndex = $this->getEditItemIndex();
$count = 0;
foreach ($this->dataSource as $key => $value) {
if ($count > 0 && strlen($this->separatorTemplate)) {
$separator = $this->createComponent('TDataListItem', self::ID_SEPARATOR . "{$count}");
$separator->setType(TDataListItem::TYPE_SEPARATOR);
$separator->instantiateTemplate($this->separatorTemplate);
$this->addBody($separator);
$this->separators->add($separator);
}
$item = null;
if ($count == $selectedIndex && strlen($this->selectedItemTemplate)) {
$item = $this->createComponent('TDataListItem', self::ID_ITEM . "{$count}");
$item->setType(TDataListItem::TYPE_SELECTED_ITEM);
$item->instantiateTemplate($this->selectedItemTemplate);
} else {
if ($count == $editIndex && strlen($this->editItemTemplate)) {
$item = $this->createComponent('TDataListItem', self::ID_ITEM . "{$count}");
$item->setType(TDataListItem::TYPE_EDIT_ITEM);
$item->instantiateTemplate($this->editItemTemplate);
} else {
if ($count % 2 == 1 && strlen($this->alternatingItemTemplate)) {
$item = $this->createComponent('TDataListItem', self::ID_ITEM . "{$count}");
$item->setType(TDataListItem::TYPE_ALTERNATING_ITEM);
$item->instantiateTemplate($this->alternatingItemTemplate);
} else {
if (strlen($this->itemTemplate)) {
$item = $this->createComponent('TDataListItem', self::ID_ITEM . "{$count}");
$item->setType(TDataListItem::TYPE_ITEM);
$item->instantiateTemplate($this->itemTemplate);
}
}
}
}
if (!is_null($item)) {
$item->setItemIndex($count);
$item->setData($value);
$this->items->add($item);
$p = new TDataListItemEventParameter();
$p->item = $item;
$this->onItemCreated($p);
}
$count++;
}
if (strlen($this->footerTemplate)) {
$this->footer = $this->createComponent('TDataListItem', self::ID_FOOTER);
$this->footer->setType(TDataListItem::TYPE_FOOTER);
$this->footer->instantiateTemplate($this->footerTemplate);
$this->addBody($this->footer);
$p = new TDataListItemEventParameter();
$p->item = $this->footer;
$this->onItemCreated($p);
}
}
