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<?php
namespace BigPipe;
abstract class Resource {
private $ID = '';
private $type = '';
private $resourceURL = '';
private $phaseDoneJS = [];
private static $count = 0;
#===============================================================================
# Render resource HTML for disabled pipeline
#===============================================================================
abstract public function renderHTML();
#===============================================================================
# Resource types
#===============================================================================
const TYPE_STYLESHEET = 0;
const TYPE_JAVASCRIPT = 1;
#===============================================================================
# Phase numbers for PhaseDoneJS
#===============================================================================
const PHASE_INIT = 0; # Resource object has been initialized
const PHASE_LOAD = 1; # Loading of resource has been started
const PHASE_DONE = 2; # Loading of resource is done.
#===============================================================================
# Build resource
#===============================================================================
public function __construct($type, $resourceURL) {
$this->phaseDoneJS = array_pad($this->phaseDoneJS, 3, []);
$this->ID = 'R'.++self::$count;
$this->type = $type;
$this->resourceURL = $resourceURL;
}
#===============================================================================
# Return the unique ID
#===============================================================================
public function getID() {
return $this->ID;
}
#===============================================================================
# Return the resource type
#===============================================================================
public function getType() {
return $this->type;
}
#===============================================================================
# Return the resource URL
#===============================================================================
public function getURL() {
return $this->resourceURL;
}
#===============================================================================
# Attach a PhaseDoneJS callback
#===============================================================================
public function addPhaseDoneJS($phase, $callback) {
return $this->phaseDoneJS[$phase][] = removeLineBreaksAndTabs($callback);
}
#===============================================================================
# Return all registered PhaseDoneJS callbacks
#===============================================================================
public function getPhaseDoneJS() {
return $this->phaseDoneJS;
}
}
?>
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