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<?php |
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namespace Amarkal\Widget; |
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abstract class AbstractWidget extends \WP_Widget |
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{ |
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private $config; |
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public function __construct() |
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{ |
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$config = $this->get_config(); |
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parent::__construct( |
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$config['id'], |
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$config['name'], |
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$config['widget_options'], |
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$config['control_options'] |
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); |
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} |
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public function form( $instance ) |
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{ |
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$values = array_merge($this->get_default_field_values(),$instance); |
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$config = $this->get_config(); |
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foreach( $config['fields'] as $field_args ) |
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{ |
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$field_args['value'] = $values[$field_args['name']]; |
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$field_args['id'] = $this->get_field_id($field_args['name']); |
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$field_args['name'] = $this->get_field_name($field_args['name']); |
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$field = new FormField($field_args); |
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echo $field->render(); |
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} |
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} |
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public function update( $new_instance, $old_instance ) |
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{ |
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$instance = array_merge($this->get_default_field_values(), $new_instance); |
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$config = $this->get_config(); |
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foreach( $config['fields'] as $field ) |
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{ |
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$name = $field['name']; |
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$value = $new_instance[$name]; |
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$instance[$name] = $value; |
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} |
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return $instance; |
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} |
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private function get_default_field_values() |
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{ |
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$defaults = array(); |
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$config = $this->get_config(); |
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foreach( $config['fields'] as $field ) |
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{ |
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$defaults[$field['name']] = $field['default']; |
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} |
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return $defaults; |
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} |
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private function default_config() |
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{ |
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return array( |
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'id' => null, |
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'name' => null, |
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'widget_options' => array(), |
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'control_options' => array(), |
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'fields' => array() |
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); |
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} |
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private function get_config() |
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{ |
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if( !isset($this->config) ) |
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{ |
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$this->config = array_merge( |
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$this->default_config(), |
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$this->config() |
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); |
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if( null === $this->config['id'] ) |
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{ |
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throw new \RuntimeException('No \'id\' was sepcified in the widget configuration'); |
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} |
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} |
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return $this->config; |
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} |
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abstract public function config(); |
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} |
amarkal /
amarkal-widget
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