silverstripe-framework/widgets/Widget.php

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<?php
/**
* Base class for widgets.
* Widgets let CMS authors drag and drop small pieces of functionality into defined areas of their websites.
* @package sapphire
* @subpackage widgets
*/
class Widget extends DataObject {
static $db = array(
"Sort" => "Int"
);
static $has_one = array(
"Parent" => "WidgetArea",
);
static $default_sort = "Sort";
static $title = "Widget Title";
static $cmsTitle = "Name of this widget";
static $description = "Description of what this widget does.";
function getCMSFields() {
return new FieldSet();
}
function WidgetHolder() {
return $this->renderWith("WidgetHolder");
}
function Content() {
return $this->renderWith($this->class);
}
function Title() {
$instance = singleton($this->class);
return $instance->uninherited('title', true);
}
function CMSTitle() {
$instance = singleton($this->class);
return $instance->uninherited('cmsTitle', true);
}
function Description() {
$instance = singleton($this->class);
return $instance->uninherited('description', true);
}
function DescriptionSegment() {
return $this->renderWith('WidgetDescription');
}
function EditableSegment() {
return $this->renderWith('WidgetEditor');
}
function CMSEditor() {
$output = '';
$fields = $this->getCMSFields();
foreach($fields as $field) {
$name = $field->Name();
$field->setValue($this->getField($name));
$renderedField = $field->FieldHolder();
$renderedField = ereg_replace("name=\"([A-Za-z0-9\-_]+)\"", "name=\"Widget[" . $this->ID . "][\\1]\"", $renderedField);
$renderedField = ereg_replace("id=\"([A-Za-z0-9\-_]+)\"", "id=\"Widget[" . $this->ID . "][\\1]\"", $renderedField);
$output .= $renderedField;
}
return $output;
}
function ClassName() {
return $this->class;
}
function Name() {
return "Widget[".$this->ID."]";
}
function populateFromPostData($data) {
foreach($data as $name => $value) {
if($name != "Type") {
$this->setField($name, $value);
}
}
$this->write();
// The field must be written to ensure a unique ID.
$this->Name = $this->class.$this->ID;
$this->write();
}
function FormObjectLink($formName) {
if(is_numeric($this->ID)) {
return "WidgetFormProxy/index/$this->ID?executeForm=$formName";
} else {
user_error("Attempted to create a form on a widget that hasn't been saved to the database.", E_USER_WARNING);
}
}
}
class Widget_Controller extends Controller {
function editablesegment() {
$className = $this->urlParams['ID'];
if(class_exists($className) && is_subclass_of($className, 'Widget')) {
$obj = new $className();
return $obj->EditableSegment();
} else {
user_error("Bad widget class: $className", E_USER_WARNING);
return "Bad widget class name given";
}
}
}
?>