140 lines
2.8 KiB
PHP
140 lines
2.8 KiB
PHP
<?php
|
|
/*
|
|
JavaScript loader. Load a sequence of JavaScript files using individual
|
|
SCRIPT elements, or concatenated, with or without a wrapper function (to keep
|
|
variables out of the global scope) and with or without a SCRIPT element wrapper
|
|
(with for an internal script, without for external).
|
|
|
|
Copyright © 2012 Jesse McCarthy <http://jessemccarthy.net/>
|
|
|
|
This software may be used under the MIT (aka X11) license or
|
|
Simplified BSD (aka FreeBSD) license. See LICENSE.
|
|
|
|
*/
|
|
/**
|
|
* JavaScript loader.
|
|
*
|
|
* @version 0.5.0
|
|
*/
|
|
class JSLoader {
|
|
protected $cfg = array();
|
|
|
|
protected $scripts = array();
|
|
|
|
protected $output;
|
|
|
|
public function __construct($cfg = array()) {
|
|
$this->cfg = array_merge($this->get_default_cfg() , $cfg);
|
|
}
|
|
|
|
protected function get_default_cfg(){
|
|
$default_cfg = array(
|
|
'file_system_path' => "./",
|
|
'concat' => false,
|
|
'function_wrapper' => false,
|
|
'indent_string' => " ",
|
|
|
|
// False for an external script or for concatenating output from multiple
|
|
// instances.
|
|
|
|
'script_wrapper' => true,
|
|
'with_header' => true
|
|
);
|
|
|
|
return $default_cfg;
|
|
}
|
|
|
|
public function parse_scripts($scripts) {
|
|
$scripts = explode("\n", $scripts);
|
|
foreach($scripts as $script_i => & $script) {
|
|
if (!strlen($script = trim($script)) || $script[0] === "#") {
|
|
unset($scripts[$script_i]);
|
|
}
|
|
}
|
|
|
|
return $scripts;
|
|
}
|
|
|
|
public function set_scripts($scripts, $cfg = array()) {
|
|
$default_cfg = array(
|
|
'add' => false
|
|
);
|
|
$cfg = array_merge($default_cfg, $cfg);
|
|
if (!is_array($scripts)) {
|
|
$scripts = $this->parse_scripts($scripts);
|
|
}
|
|
|
|
if (!$cfg['add']) {
|
|
$this->scripts = array();
|
|
}
|
|
|
|
$this->scripts = array_merge($this->scripts, $scripts);
|
|
}
|
|
|
|
public function add_scripts($scripts)
|
|
{
|
|
$this->set_scripts($scripts, array(
|
|
'add' => true
|
|
));
|
|
}
|
|
|
|
public function get_output() {
|
|
$scripts = $this->scripts ? $this->scripts : array();
|
|
if ($this->cfg['concat']) {
|
|
foreach($scripts as & $script) {
|
|
$file = $script;
|
|
$file = rtrim($this->cfg['file_system_path'], "/") . "/{$file}";
|
|
$script = file_get_contents($file);
|
|
}
|
|
|
|
$scripts = join("\n\n", $scripts);
|
|
if ($this->cfg['function_wrapper']) {
|
|
$scripts = explode("\n", $scripts);
|
|
foreach($scripts as & $line) {
|
|
if ($line !== "") {
|
|
$line = "{$this->cfg['indent_string']}{$line}";
|
|
}
|
|
}
|
|
|
|
$scripts = join("\n", $scripts);
|
|
$scripts = <<<DOCHERE
|
|
( function () {
|
|
|
|
{$scripts}
|
|
|
|
} )();
|
|
|
|
DOCHERE;
|
|
}
|
|
|
|
// if
|
|
|
|
if ($this->cfg['script_wrapper']) {
|
|
$scripts = <<<DOCHERE
|
|
<script>
|
|
|
|
{$scripts}
|
|
|
|
</script>
|
|
DOCHERE;
|
|
} elseif ($this->cfg['with_header']) {
|
|
header("Content-Type: text/javascript");
|
|
}
|
|
|
|
$scripts = array(
|
|
$scripts
|
|
);
|
|
}
|
|
else {
|
|
foreach($scripts as & $script) {
|
|
$script = <<<DOCHERE
|
|
<script src="{$script}"></script>
|
|
DOCHERE;
|
|
}
|
|
}
|
|
|
|
$this->output = join("\n\n\n", $scripts);
|
|
return $this->output;
|
|
}
|
|
}
|