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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* JavaScript management
*
* @package PhpMyAdmin
*/
namespace PhpMyAdmin;
use PhpMyAdmin\Header;
use PhpMyAdmin\Sanitize;
use PhpMyAdmin\Url;
/**
* Collects information about which JavaScript
* files and objects are necessary to render
* the page and generates the relevant code.
*
* @package PhpMyAdmin
*/
class Scripts
{
/**
* An array of SCRIPT tags
*
* @access private
* @var array of strings
*/
private $_files;
/**
* An array of discrete javascript code snippets
*
* @access private
* @var array of strings
*/
private $_code;
/**
* Returns HTML code to include javascript file.
*
* @param array $files The list of js file to include
*
* @return string HTML code for javascript inclusion.
*/
private function _includeFiles(array $files)
{
$result = '';
foreach ($files as $value) {
if (strpos($value['filename'], ".php") !== false) {
$file_name = $value['filename'] . Url::getCommon($value['params'] + array('v' => PMA_VERSION));
$result .= "<script data-cfasync='false' "
. "type='text/javascript' src='js/" . $file_name
. "'></script>\n";
} else {
$result .= '<script data-cfasync="false" type="text/javascript" src="js/'
. $value['filename'] . '?' . Header::getVersionParameter() . '"></script>' . "\n";
}
}
return $result;
}
/**
* Generates new Scripts objects
*
*/
public function __construct()
{
$this->_files = array();
$this->_code = '';
}
/**
* Adds a new file to the list of scripts
*
* @param string $filename The name of the file to include
* @param array $params Additional parameters to pass to the file
*
* @return void
*/
public function addFile(
$filename,
array $params = array()
) {
$hash = md5($filename);
if (!empty($this->_files[$hash])) {
return;
}
$has_onload = $this->_eventBlacklist($filename);
$this->_files[$hash] = array(
'has_onload' => $has_onload,
'filename' => $filename,
'params' => $params,
);
}
/**
* Add new files to the list of scripts
*
* @param array $filelist The array of file names
*
* @return void
*/
public function addFiles(array $filelist)
{
foreach ($filelist as $filename) {
$this->addFile($filename);
}
}
/**
* Determines whether to fire up an onload event for a file
*
* @param string $filename The name of the file to be checked
* against the blacklist
*
* @return int 1 to fire up the event, 0 not to
*/
private function _eventBlacklist($filename)
{
if (strpos($filename, 'jquery') !== false
|| strpos($filename, 'codemirror') !== false
|| strpos($filename, 'messages.php') !== false
|| strpos($filename, 'ajax.js') !== false
|| strpos($filename, 'cross_framing_protection.js') !== false
) {
return 0;
}
return 1;
}
/**
* Adds a new code snippet to the code to be executed
*
* @param string $code The JS code to be added
*
* @return void
*/
public function addCode($code)
{
$this->_code .= "$code\n";
}
/**
* Returns a list with filenames and a flag to indicate
* whether to register onload events for this file
*
* @return array
*/
public function getFiles()
{
$retval = array();
foreach ($this->_files as $file) {
//If filename contains a "?", continue.
if (strpos($file['filename'], "?") !== false) {
continue;
}
$retval[] = array(
'name' => $file['filename'],
'fire' => $file['has_onload']
);
}
return $retval;
}
/**
* Renders all the JavaScript file inclusions, code and events
*
* @return string
*/
public function getDisplay()
{
$retval = '';
if (count($this->_files) > 0) {
$retval .= $this->_includeFiles(
$this->_files
);
}
$code = 'AJAX.scriptHandler';
foreach ($this->_files as $file) {
$code .= sprintf(
'.add("%s",%d)',
Sanitize::escapeJsString($file['filename']),
$file['has_onload'] ? 1 : 0
);
}
$code .= ';';
$this->addCode($code);
$code = '$(function() {';
foreach ($this->_files as $file) {
if ($file['has_onload']) {
$code .= 'AJAX.fireOnload("';
$code .= Sanitize::escapeJsString($file['filename']);
$code .= '");';
}
}
$code .= '});';
$this->addCode($code);
$retval .= '<script data-cfasync="false" type="text/javascript">';
$retval .= "// <![CDATA[\n";
$retval .= $this->_code;
$retval .= '// ]]>';
$retval .= '</script>';
return $retval;
}
}
|
