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<?php
namespace Imagely\NGG\Display;
class ViewElement {
protected $id;
protected $type;
protected $list;
protected $context;
public function __construct( $id, $type = null ) {
$this->id = $id;
$this->type = $type;
$this->list = [];
$this->context = [];
}
public function get_id() {
return $this->id;
}
public function append( $child ) {
$this->list[] = $child;
}
public function insert( $child, $position = 0 ) {
array_splice( $this->list, $position, 0, $child );
}
public function delete( $child ) {
$index = array_search( $child, $this->list );
if ( $index !== false ) {
array_splice( $this->list, $index, 1 );
}
}
public function find( $id, $recurse = false ) {
$list = [];
$this->_find( $list, $id, $recurse );
return $list;
}
public function _find( array &$list, $id, $recurse = false ) {
foreach ( $this->list as $index => $element ) {
if ( $element instanceof ViewElement ) {
if ( $element->get_id() == $id ) {
$list[] = $element;
}
if ( $recurse ) {
$element->_find( $list, $id, $recurse );
}
}
}
}
public function get_context( $name ) {
if ( isset( $this->context[ $name ] ) ) {
return $this->context[ $name ];
}
return null;
}
public function set_context( $name, $value ) {
$this->context[ $name ] = $value;
}
public function get_object() {
return $this->get_context( 'object' );
}
public function rasterize() {
$ret = null;
foreach ( $this->list as $index => $element ) {
if ( $element instanceof ViewElement ) {
$ret .= $element->rasterize();
} else {
$ret .= (string) $element;
}
}
return $ret;
}
}