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<?php
/**
* Special field type for selecting and configuring widgets on a page.
* @package cms
* @subpackage content
*/
class WidgetAreaEditor extends FormField {
/**
* 3 variables to hold titles for the template
*/
public $InUseTitle;
public $AvailableTitle;
public $ToAddTitle;
function __construct($name, $widgetClasses = array('Widget'), $maxWidgets = 0) {
$this->MaxWidgets = $maxWidgets;
$this->widgetClasses = $widgetClasses;
parent::__construct($name);
}
function FieldHolder() {
Requirements::css(CMS_DIR . '/css/WidgetAreaEditor.css');
Requirements::javascript(CMS_DIR . '/javascript/WidgetAreaEditor.js');
return $this->renderWith("WidgetAreaEditor");
}
function AvailableWidgets() {
$widgets= new DataObjectSet();
foreach($this->widgetClasses as $widgetClass) {
$classes = ClassInfo::subclassesFor($widgetClass);
array_shift($classes);
foreach($classes as $class) {
$widgets->push(singleton($class));
}
}
return $widgets;
}
function UsedWidgets() {
// Call class_exists() to load Widget.php earlier and avoid a segfault
class_exists('Widget');
$relationName = $this->name;
$widgets = $this->form->getRecord()->getComponent($relationName)->Items();
return $widgets;
}
function IdxField() {
return $this->id() . 'ID';
}
function Value() {
$relationName = $this->name;
return $this->form->getRecord()->getComponent($relationName)->ID;
}
function saveInto(DataObject $record) {
$name = $this->name;
$idName = $name . "ID";
$widgetarea = $record->getComponent($name);
$widgetarea->write();
$record->$idName = $widgetarea->ID;
$widgets = $widgetarea->Items();
// store the field IDs and delete the missing fields
// alternatively, we could delete all the fields and re add them
$missingWidgets = array();
if($widgets) {
foreach($widgets as $existingWidget) {
$missingWidgets[$existingWidget->ID] = $existingWidget;
}
}
if(isset($_REQUEST['Widget'])) {
foreach(array_keys($_REQUEST['Widget']) as $widgetAreaName) {
if ($widgetAreaName !== $this->name) {
continue;
}
foreach(array_keys($_REQUEST['Widget'][$widgetAreaName]) as $newWidgetID) {
$newWidgetData = $_REQUEST['Widget'][$widgetAreaName][$newWidgetID];
// Sometimes the id is "new-1" or similar, ensure this doesn't get into the query
if(!is_numeric($newWidgetID)) {
$newWidgetID = 0;
}
// \"ParentID\" = '0' is for the new page
$widget = DataObject::get_one(
'Widget',
"(\"ParentID\" = '{$record->$name()->ID}' OR \"ParentID\" = '0') AND \"Widget\".\"ID\" = '$newWidgetID'"
);
// check if we are updating an existing widget
if($widget && isset($missingWidgets[$widget->ID])) {
unset($missingWidgets[$widget->ID]);
}
// create a new object
if(!$widget && !empty($newWidgetData['Type']) && class_exists($newWidgetData['Type'])) {
$widget = new $newWidgetData['Type']();
$widget->ID = 0;
$widget->ParentID = $record->$name()->ID;
if(!is_subclass_of($widget, 'Widget')) {
$widget = null;
}
}
if($widget) {
if($widget->ParentID == 0) {
$widget->ParentID = $record->$name()->ID;
}
// echo "Saving $widget->ID into $name/$widget->ParentID\n<br/>";
$widget->populateFromPostData($newWidgetData);
}
}
}
}
// remove the fields not saved
if($missingWidgets) {
foreach($missingWidgets as $removedWidget) {
if(isset($removedWidget) && is_numeric($removedWidget->ID)) {
$removedWidget->delete();
}
}
}
}
}
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