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<?php |
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namespace Amarkal\UI; |
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/** |
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* Defines an abstract UI component |
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*/ |
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abstract class AbstractComponent |
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extends Template |
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{ |
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/** |
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* This template is used to generate the name for this component. the token |
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* {{name}} will be replaced by the component's name during runtime. |
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* |
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* @var string |
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*/ |
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public $name_template = '{{name}}'; |
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/** |
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* This template is used to generate the name for this component when it is |
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* used as a child component in a composite component. The token |
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* {{parent_name}} will be replaced with the name of the parent (composite) |
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* component. |
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* |
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* @var string |
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*/ |
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public $composite_name_template = '{{parent_name}}[{{name}}]'; |
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/** |
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* A list of HTML classes to be added to the wrapper div of this component. |
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* |
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* @var array |
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*/ |
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public $html_classes = array(); |
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/** |
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* Constructor |
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* |
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* @param array $model |
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*/ |
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public function __construct( array $model = array() ) |
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{ |
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parent::__construct($model); |
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$this->add_html_class(sprintf( |
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'amarkal-ui-component amarkal-ui-component-%s', |
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$this->component_type |
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)); |
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if($this instanceof DisableableComponentInterface && $this->disabled) |
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{ |
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$this->add_html_class('amarkal-ui-disabled'); |
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} |
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$this->on_created(); |
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} |
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/** |
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* The default model to use when none is provided to the constructor. |
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* This method should be overriden by child class to define the default |
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* model. |
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* |
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* @return array |
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*/ |
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public function default_model() |
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{ |
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return array(); |
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} |
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/** |
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* The list of required model arguments. |
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* This method should be overriden by child class to specify required model |
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* arguments. |
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* |
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* @return array |
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*/ |
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public function required_arguments() |
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{ |
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return array(); |
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} |
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/** |
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* Set the model data for this component. |
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* |
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* @return array |
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*/ |
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public function set_model( $model ) |
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{ |
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// Check that the required arguments are provided. |
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foreach( $this->required_arguments() as $key ) |
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{ |
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if ( !isset($model[$key]) ) |
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{ |
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throw new \RuntimeException('The required argument "'.$key.'" was not provided for '.get_called_class()); |
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} |
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} |
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// Assign the name of the component as the id if no id was specified |
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if( !isset($model['id']) && isset($model['name']) ) |
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{ |
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$model['id'] = $model['name']; |
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} |
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// A name must be specified when a component has a visibility condition |
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if( isset($model['show']) && !isset($model['name']) ) |
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{ |
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throw new \RuntimeException('Components with a visibility condition (a "show" argument) must have a name'); |
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} |
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$this->model = array_merge( $this->default_model(), $model ); |
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} |
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/** |
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* Get the name for this component by parsing the name template. |
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* |
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* @return string |
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*/ |
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public function get_name() |
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{ |
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return \str_replace('{{name}}', $this->name, $this->name_template); |
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} |
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/** |
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* Add an HTML class to the list of HTML classes to be printed when the |
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* component is rendered. |
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* |
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* @param string $class |
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*/ |
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public function add_html_class( $class ) |
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{ |
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if( !in_array($class, $this->html_classes) ) |
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{ |
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$this->html_classes[] = $class; |
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} |
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} |
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/** |
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* Remove an HTML class to the list of HTML classes to be printed when the |
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* component is rendered. |
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* |
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* @param string $class |
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*/ |
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public function remove_html_class( $class ) |
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{ |
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$i = 0; |
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foreach( $this->html_classes as $c ) |
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{ |
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if( $c === $class ) |
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{ |
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array_splice($this->html_classes,$i,1); |
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break; |
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} |
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$i++; |
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} |
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} |
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/** |
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* Set the validity of this component if it supports validation. |
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* |
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* @param type $validity |
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*/ |
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Public function set_validity( $validity ) |
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{ |
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$this->validity = $validity; |
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if($validity === $this::INVALID) |
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{ |
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$this->add_html_class('amarkal-ui-component-error'); |
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} |
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} |
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/** |
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* Generate common UI component wrapper attributes |
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*/ |
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public function component_attributes() |
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{ |
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return sprintf( |
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'class="%s" amarkal-component-name="%s"', |
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implode(' ', $this->html_classes), |
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$this->name |
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); |
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} |
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/** |
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* Enqueue component's script and render it. |
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* |
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* {@inheritdoc} |
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*/ |
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public function render( $echo = false ) |
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{ |
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$this->enqueue_scripts(); |
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ob_start(); |
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include dirname(__FILE__).'/AbstractComponent.phtml'; |
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$html = ob_get_clean(); |
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if( !$echo ) |
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{ |
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return $html; |
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} |
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echo $html; |
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} |
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/** |
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* Enqueue styles/scripts required for this element. |
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*/ |
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public function enqueue_scripts() |
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{ |
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\wp_enqueue_script('amarkal-ui'); |
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\wp_enqueue_style('amarkal-ui'); |
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} |
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/** |
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* A hook that is called once the component has been created. |
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*/ |
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protected function on_created() {} |
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} |