mirror of
https://github.com/kamilwylegala/cakephp2-php8.git
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670 lines
20 KiB
PHP
670 lines
20 KiB
PHP
<?php
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/* SVN FILE: $Id$ */
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/**
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* Javascript Generator class file.
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*
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* PHP versions 4 and 5
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*
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* CakePHP : Rapid Development Framework (http://www.cakephp.org)
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* Copyright 2006-2008, Cake Software Foundation, Inc.
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @filesource
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* @copyright Copyright 2006-2008, Cake Software Foundation, Inc.
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* @link http://www.cakefoundation.org/projects/info/cakephp CakePHP Project
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* @package cake
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* @subpackage cake.cake.libs.view.helpers
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* @since CakePHP v 1.2
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* @version $Revision$
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* @modifiedby $LastChangedBy$
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* @lastmodified $Date$
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* @license http://www.opensource.org/licenses/mit-license.php The MIT License
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**/
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/**
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* Javascript Generator helper class for easy use of JavaScript.
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*
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* JsHelper provides an abstract interface for authoring JavaScript with a
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* given client-side library.
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*
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* @package cake
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* @subpackage cake.cake.libs.view.helpers
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**/
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class JsHelper extends AppHelper {
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/**
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* Whether or not you want scripts to be buffered or output.
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*
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* @var boolean
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**/
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var $bufferScripts = true;
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/**
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* helpers
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*
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* @var array
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**/
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var $helpers = array('Html');
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/**
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* Scripts that are queued for output
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*
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* @var array
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**/
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var $__bufferedScripts = array();
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/**
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* Current Javascript Engine that is being used
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*
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* @var string
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* @access private
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**/
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var $__engineName;
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/**
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* __objects
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*
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* @var array
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**/
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var $__objects = array();
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/**
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* output
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*
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* @var string
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**/
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var $output = false;
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/**
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* Constructor - determines engine helper
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*
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* @param array $settings Settings array contains name of engine helper.
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* @access public
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* @return void
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**/
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function __construct($settings = array()) {
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$className = 'Jquery';
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if (is_array($settings) && isset($settings[0])) {
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$className = $settings[0];
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} elseif (is_string($settings)) {
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$className = $settings;
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}
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$engineName = $className;
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if (strpos($className, '.') !== false) {
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list($plugin, $className) = explode('.', $className);
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}
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$this->__engineName = $className . 'Engine';
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$engineClass = $engineName . 'Engine';
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$this->helpers[] = $engineClass;
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parent::__construct();
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}
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/**
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* call__ Allows for dispatching of methods to the Engine Helper.
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* methods in the Engines bufferedMethods list will be automatically buffered.
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* You can control buffering with the buffer param as well. By setting the last parameter to
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* any engine method to a boolean you can force or disable buffering.
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*
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* e.g. `$js->get('#foo')->effect('fadeIn', array('speed' => 'slow'), true);`
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*
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* Will force buffering for the effect method. If the method takes an options array you may also add
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* a 'buffer' param to the options array and control buffering there as well.
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*
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* e.g. `$js->get('#foo')->event('click', $functionContents, array('buffer' => true));`
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*
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* The buffer parameter will not be passed onto the EngineHelper.
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*
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* @param string $method Method to be called
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* @param array $params Parameters for the method being called.
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* @access public
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* @return mixed
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**/
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function call__($method, $params) {
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if (isset($this->{$this->__engineName}) && method_exists($this->{$this->__engineName}, $method)) {
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$buffer = false;
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if (in_array(strtolower($method), $this->{$this->__engineName}->bufferedMethods)) {
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$buffer = true;
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}
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if (count($params) > 0) {
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$lastParam = $params[count($params) - 1];
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$hasBufferParam = (is_bool($lastParam) || is_array($lastParam) && isset($lastParam['buffer']));
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if ($hasBufferParam && is_bool($lastParam)) {
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$buffer = $lastParam;
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unset($params[count($params) - 1]);
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} elseif ($hasBufferParam && is_array($lastParam)) {
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$buffer = $lastParam['buffer'];
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unset($params['buffer']);
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}
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}
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$out = $this->{$this->__engineName}->dispatchMethod($method, $params);
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if ($this->bufferScripts && $buffer && is_string($out)) {
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$this->buffer($out);
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return null;
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}
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if (is_object($out) && is_a($out, 'JsBaseEngineHelper')) {
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return $this;
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}
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return $out;
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}
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if (method_exists($this, $method . '_')) {
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return $this->dispatchMethod($method . '_', $params);
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}
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trigger_error(sprintf(__('JsHelper:: Missing Method %s is undefined', true), $method), E_USER_WARNING);
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}
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/**
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* Writes all Javascript generated so far to a code block or
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* caches them to a file and returns a linked script.
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*
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* Options
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*
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* - 'inline' - Set to true to have scripts output as a script block inline
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* if 'cache' is also true, a script link tag will be generated. (default true)
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* - 'cache' - Set to true to have scripts cached to a file and linked in (default false)
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* - 'clear' - Set to false to prevent script cache from being cleared (default true)
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* - 'onDomReady' - wrap cached scripts in domready event (default true)
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* - 'safe' - if an inline block is generated should it be wrapped in <![CDATA[ ... ]]> (default true)
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*
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* @param array $options options for the code block
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* @return string completed javascript tag.
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**/
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function writeBuffer($options = array()) {
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$defaults = array('onDomReady' => true, 'inline' => true, 'cache' => false, 'clear' => true, 'safe' => true);
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$options = array_merge($defaults, $options);
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$script = implode("\n", $this->getBuffer($options['clear']));
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if ($options['onDomReady']) {
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$script = $this->{$this->__engineName}->domReady($script);
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}
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if (!$options['cache'] && $options['inline']) {
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return $this->Html->scriptBlock($script, $options);
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}
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if ($options['cache'] && $options['inline']) {
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$filename = md5($script);
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if (!file_exists(JS . $filename . '.js')) {
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cache(str_replace(WWW_ROOT, '', JS) . $filename . '.js', $script, '+999 days', 'public');
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}
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return $this->Html->script($filename);
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}
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$view =& ClassRegistry::getObject('view');
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$view->addScript($script);
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return null;
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}
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/**
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* Write a script to the cached scripts.
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*
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* @return void
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**/
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function buffer($script) {
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$this->__bufferedScripts[] = $script;
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}
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/**
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* Get all the cached scripts
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*
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* @param boolean $clear Whether or not to clear the script caches
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* @return array Array of scripts added to the request.
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**/
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function getBuffer($clear = true) {
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$scripts = $this->__bufferedScripts;
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if ($clear) {
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$this->__bufferedScripts = array();
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}
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return $scripts;
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}
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}
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/**
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* JsEngineBaseClass
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*
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* Abstract Base Class for All JsEngines to extend. Provides generic methods.
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*
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* @package cake.view.helpers
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**/
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class JsBaseEngineHelper extends AppHelper {
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/**
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* Determines whether native JSON extension is used for encoding. Set by object constructor.
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*
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* @var boolean
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* @access public
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**/
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var $useNative = false;
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/**
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* The js snippet for the current selection.
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*
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* @var string
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* @access public
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**/
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var $selection;
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/**
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* Collection of option maps. Option maps allow other helpers to use generic names for engine
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* callbacks and options. Allowing uniform code access for all engine types. Their use is optional
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* for end user use though.
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*
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* @var array
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**/
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var $_optionMap = array();
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/**
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* An array of lowercase method names in the Engine that are buffered unless otherwise disabled.
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* This allows specific 'end point' methods to be automatically buffered by the JsHelper.
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*
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* @var array
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**/
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var $bufferedMethods = array('event', 'sortable', 'drag', 'drop', 'slider');
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/**
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* Constructor.
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*
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* @return void
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**/
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function __construct() {
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$this->useNative = function_exists('json_encode');
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}
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/**
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* Create an alert message in Javascript
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*
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* @param string $message Message you want to alter.
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* @access public
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* @return string completed alert()
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**/
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function alert($message) {
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return 'alert("' . $this->escape($message) . '");';
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}
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/**
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* Redirects to a URL
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*
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* @param mixed $url
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* @param array $options
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* @return string completed redirect in javascript
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**/
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function redirect($url = null) {
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return 'window.location = "' . Router::url($url) . '";';
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}
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/**
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* Create a confirm() message
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*
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* @param string $message Message you want confirmed.
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* @access public
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* @return string completed confirm()
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**/
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function confirm($message) {
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return 'confirm("' . $this->escape($message) . '");';
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}
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/**
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* Create a prompt() Javascript function
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*
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* @param string $message Message you want to prompt.
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* @param string $default Default message
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* @access public
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* @return string completed prompt()
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**/
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function prompt($message, $default = '') {
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return 'prompt("' . $this->escape($message) . '", "' . $this->escape($default) . '");';
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}
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/**
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* Generates a JavaScript object in JavaScript Object Notation (JSON)
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* from an array. Will use native JSON encode method if available, and $useNative == true
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*
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* Options:
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*
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* - 'prefix' - String prepended to the returned data.
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* - 'postfix' - String appended to the returned data.
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* - 'stringKeys' - A list of array keys to be treated as a string
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* - 'quoteKeys' - If false treats $options['stringKeys'] as a list of keys **not** to be quoted.
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* - 'q' - Type of quote to use.
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*
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* @param array $data Data to be converted.
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* @param array $options Set of options, see above.
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* @return string A JSON code block
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* @access public
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**/
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function object($data = array(), $options = array()) {
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$defaultOptions = array(
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'block' => false, 'prefix' => '', 'postfix' => '',
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'stringKeys' => array(), 'quoteKeys' => true, 'q' => '"'
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);
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$options = array_merge($defaultOptions, $options);
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if (is_object($data)) {
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$data = get_object_vars($data);
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}
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$out = $keys = array();
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$numeric = true;
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if ($this->useNative) {
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$rt = json_encode($data);
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} else {
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if (is_null($data)) {
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return 'null';
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}
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if (is_bool($data)) {
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return $data ? 'true' : 'false';
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}
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if (is_array($data)) {
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$keys = array_keys($data);
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}
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if (!empty($keys)) {
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$numeric = (array_values($keys) === array_keys(array_values($keys)));
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}
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foreach ($data as $key => $val) {
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if (is_array($val) || is_object($val)) {
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$val = $this->object($val, array_merge($options, array('block' => false)));
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} else {
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$quoteStrings = (
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!count($options['stringKeys']) ||
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($options['quoteKeys'] && in_array($key, $options['stringKeys'], true)) ||
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(!$options['quoteKeys'] && !in_array($key, $options['stringKeys'], true))
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);
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$val = $this->value($val, $quoteStrings);
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}
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if (!$numeric) {
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$val = $options['q'] . $this->value($key, false) . $options['q'] . ':' . $val;
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}
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$out[] = $val;
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}
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if (!$numeric) {
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$rt = '{' . join(',', $out) . '}';
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} else {
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$rt = '[' . join(',', $out) . ']';
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}
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}
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$rt = $options['prefix'] . $rt . $options['postfix'];
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if ($options['block']) {
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$rt = $this->codeBlock($rt, array_diff_key($options, $defaultOptions));
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}
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return $rt;
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}
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/**
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* Converts a PHP-native variable of any type to a JSON-equivalent representation
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*
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* @param mixed $val A PHP variable to be converted to JSON
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* @param boolean $quoteStrings If false, leaves string values unquoted
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* @return string a JavaScript-safe/JSON representation of $val
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* @access public
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**/
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function value($val, $quoteStrings = true) {
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switch (true) {
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case (is_array($val) || is_object($val)):
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$val = $this->object($val);
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break;
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case ($val === null):
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$val = 'null';
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break;
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case (is_bool($val)):
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$val = ($val === true) ? 'true' : 'false';
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break;
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case (is_int($val)):
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$val = $val;
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break;
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case (is_float($val)):
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$val = sprintf("%.11f", $val);
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break;
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default:
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$val = $this->escape($val);
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if ($quoteStrings) {
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$val = '"' . $val . '"';
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}
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break;
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}
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return $val;
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}
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/**
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* Escape a string to be JavaScript friendly.
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*
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* List of escaped ellements:
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* + "\r\n" => '\n'
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* + "\r" => '\n'
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* + "\n" => '\n'
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* + '"' => '\"'
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* + "'" => "\\'"
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*
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* @param string $script String that needs to get escaped.
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* @return string Escaped string.
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* @access public
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**/
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function escape($string) {
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$escape = array("\r\n" => '\n', "\r" => '\n', "\n" => '\n', '"' => '\"', "'" => "\\'");
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return str_replace(array_keys($escape), array_values($escape), $string);
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}
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/**
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* Create javascript selector for a CSS rule
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*
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* @param string $selector The selector that is targeted
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* @return object instance of $this. Allows chained methods.
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**/
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function get($selector) {
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trigger_error(sprintf(__('%s does not have get() implemented', true), get_class($this)), E_USER_WARNING);
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return $this;
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}
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/**
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* Add an event to the script cache. Operates on the currently selected elements.
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*
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* ### Options
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*
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* - 'wrap' - Whether you want the callback wrapped in an anonymous function. (defaults to true)
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* - 'stop' - Whether you want the event to stopped. (defaults to true)
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*
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* @param string $type Type of event to bind to the current dom id
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* @param string $callback The Javascript function you wish to trigger or the function literal
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* @param array $options Options for the event.
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* @return string completed event handler
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**/
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function event($type, $callback, $options = array()) {
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trigger_error(sprintf(__('%s does not have event() implemented', true), get_class($this)), E_USER_WARNING);
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}
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/**
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* Create a domReady event. This is a special event in many libraries
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*
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* @param string $functionBody The code to run on domReady
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* @return string completed domReady method
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**/
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function domReady($functionBody) {
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trigger_error(sprintf(__('%s does not have domReady() implemented', true), get_class($this)), E_USER_WARNING);
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}
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/**
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* Create an iteration over the current selection result.
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*
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* @param string $callback The function body you wish to apply during the iteration.
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* @return string completed iteration
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**/
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function each($callback) {
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trigger_error(sprintf(__('%s does not have each() implemented', true), get_class($this)), E_USER_WARNING);
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}
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/**
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* Trigger an Effect.
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*
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* ### Supported Effects
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*
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* The following effects are supported by all JsEngines
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*
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* - 'show' - reveal an element.
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* - 'hide' - hide an element.
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* - 'fadeIn' - Fade in an element.
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* - 'fadeOut' - Fade out an element.
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* - 'slideIn' - Slide an element in.
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* - 'slideOut' - Slide an element out.
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*
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* ### Options
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*
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* - 'speed' - Speed at which the animation should occur. Accepted values are 'slow', 'fast'. Not all effects use
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* the speed option.
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*
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* @param string $name The name of the effect to trigger.
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* @param array $options Array of options for the effect.
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* @return string completed string with effect.
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**/
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function effect($name, $options) {
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trigger_error(sprintf(__('%s does not have effect() implemented', true), get_class($this)), E_USER_WARNING);
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}
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/**
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* Make an XHR request
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*
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* ### Event Options
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*
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* - 'complete' - Callback to fire on complete.
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* - 'success' - Callback to fire on success.
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* - 'before' - Callback to fire on request initialization.
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* - 'error' - Callback to fire on request failure.
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*
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* ### Options
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*
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* - 'method' - The method to make the request with defaults to GET in more libraries
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* - 'async' - Whether or not you want an asynchronous request.
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* - 'data' - Additional data to send.
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* - 'update' - Dom id to update with the content of the request.
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* - 'type' - Data type for response. 'json' and 'html' are supported. Default is html for most libraries.
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* - 'evalScripts' - Whether or not <script> tags should be eval'ed.
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*
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* @param mixed $url Array or String URL to target with the request.
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* @param array $options Array of options. See above for cross library supported options
|
|
* @return string XHR request.
|
|
**/
|
|
function request($url, $options = array()) {
|
|
trigger_error(sprintf(__('%s does not have request() implemented', true), get_class($this)), E_USER_WARNING);
|
|
}
|
|
/**
|
|
* Create a draggable element. Works on the currently selected element.
|
|
* Additional options may be supported by your library.
|
|
*
|
|
* ### Options
|
|
*
|
|
* - handle - selector to the handle element.
|
|
* - snapGrid - The pixel grid that movement snaps to, an array(x, y)
|
|
* - container - The element that acts as a bounding box for the draggable element.
|
|
*
|
|
* ### Event Options
|
|
*
|
|
* - start - Event fired when the drag starts
|
|
* - drag - Event fired on every step of the drag
|
|
* - stop - Event fired when dragging stops (mouse release)
|
|
*
|
|
* @param array $options Options array see above.
|
|
* @return string Completed drag script
|
|
**/
|
|
function drag($options = array()) {
|
|
trigger_error(sprintf(__('%s does not have drag() implemented', true), get_class($this)), E_USER_WARNING);
|
|
}
|
|
/**
|
|
* Create a droppable element. Allows for draggable elements to be dropped on it.
|
|
* Additional options may be supported by your library.
|
|
*
|
|
* ### Options
|
|
*
|
|
* - accept - Selector for elements this droppable will accept.
|
|
* - hoverclass - Class to add to droppable when a draggable is over.
|
|
*
|
|
* ### Event Options
|
|
*
|
|
* - drop - Event fired when an element is dropped into the drop zone.
|
|
* - hover - Event fired when a drag enters a drop zone.
|
|
* - leave - Event fired when a drag is removed from a drop zone without being dropped.
|
|
*
|
|
* @return string Completed drop script
|
|
**/
|
|
function drop($options = array()) {
|
|
trigger_error(sprintf(__('%s does not have drop() implemented', true), get_class($this)), E_USER_WARNING);
|
|
}
|
|
/**
|
|
* Create a sortable element.
|
|
*
|
|
* ### Options
|
|
*
|
|
* - containment - Container for move action
|
|
* - handle - Selector to handle element. Only this element will start sort action.
|
|
* - revert - Whether or not to use an effect to move sortable into final position.
|
|
* - opacity - Opacity of the placeholder
|
|
* - distance - Distance a sortable must be dragged before sorting starts.
|
|
*
|
|
* ### Event Options
|
|
*
|
|
* - start - Event fired when sorting starts
|
|
* - sort - Event fired during sorting
|
|
* - complete - Event fired when sorting completes.
|
|
*
|
|
*
|
|
* @param array $options Array of options for the sortable. See above.
|
|
* @return string Completed sortable script.
|
|
**/
|
|
function sortable() {
|
|
trigger_error(sprintf(__('%s does not have sortable() implemented', true), get_class($this)), E_USER_WARNING);
|
|
}
|
|
/**
|
|
* Create a slider UI widget. Comprised of a track and knob
|
|
*
|
|
* ### Options
|
|
*
|
|
* - handle - The id of the element used in sliding.
|
|
* - direction - The direction of the slider either 'vertical' or 'horizontal'
|
|
* - min - The min value for the slider.
|
|
* - max - The max value for the slider.
|
|
* - step - The number of steps or ticks the slider will have.
|
|
* - value - The initial offset of the slider.
|
|
*
|
|
* ### Events
|
|
*
|
|
* - change - Fired when the slider's value is updated
|
|
* - complete - Fired when the user stops sliding the handle
|
|
*
|
|
* @return string Completed slider script
|
|
**/
|
|
function slider() {
|
|
trigger_error(sprintf(__('%s does not have slider() implemented', true), get_class($this)), E_USER_WARNING);
|
|
}
|
|
/**
|
|
* Parse an options assoc array into an Javascript object literal.
|
|
* Similar to object() but treats any non-integer value as a string,
|
|
* does not include { }
|
|
*
|
|
* @param array $options Options to be converted
|
|
* @param array $safeKeys Keys that should not be escaped.
|
|
* @return string
|
|
* @access protected
|
|
**/
|
|
function _parseOptions($options, $safeKeys = array()) {
|
|
$out = array();
|
|
foreach ($options as $key => $value) {
|
|
if (!is_int($value) && !in_array($key, $safeKeys)) {
|
|
$value = $this->value($value);
|
|
}
|
|
$out[] = $key . ':' . $value;
|
|
}
|
|
sort($out);
|
|
return join(', ', $out);
|
|
}
|
|
/**
|
|
* Maps Abstract options to engine specific option names.
|
|
* If attributes are missing from the map, they are not changed.
|
|
*
|
|
* @param string $method Name of method whose options are being worked with.
|
|
* @param array $options Array of options to map.
|
|
* @return array Array of mapped options.
|
|
* @access protected
|
|
**/
|
|
function _mapOptions($method, $options) {
|
|
if (!isset($this->_optionMap[$method])) {
|
|
return $options;
|
|
}
|
|
foreach ($this->_optionMap[$method] as $abstract => $concrete) {
|
|
if (isset($options[$abstract])) {
|
|
$options[$concrete] = $options[$abstract];
|
|
unset($options[$abstract]);
|
|
}
|
|
}
|
|
return $options;
|
|
}
|
|
/**
|
|
* Convert an array of data into a query string
|
|
*
|
|
* @param array $parameters Array of parameters to convert to a query string
|
|
* @return string Querystring fragment
|
|
* @access protected
|
|
**/
|
|
function _toQuerystring($parameters) {
|
|
$out = '';
|
|
$keys = array_keys($parameters);
|
|
$count = count($parameters);
|
|
for ($i = 0; $i < $count; $i++) {
|
|
$out .= $keys[$i] . '=' . $parameters[$keys[$i]];
|
|
if ($i < $count - 1) {
|
|
$out .= '&';
|
|
}
|
|
}
|
|
return $out;
|
|
}
|
|
}
|
|
?>
|