ajax.php

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						$options . ");");
	}
/**
 * Creates an Ajax-updateable DIV element
 *
 * @param string $id options for javascript
 * @return string HTML code
 */
	function div($id, $options = array()) {
		if (env('HTTP_X_UPDATE') != null) {
			$this->Javascript->enabled = false;
			$divs = explode(' ', env('HTTP_X_UPDATE'));

			if (in_array($id, $divs)) {
				@ob_end_clean();
				ob_start();
				return '';
			}
		}
		$attr = $this->_parseAttributes(array_merge($options, array('id' => $id)));
		return $this->output(sprintf($this->Html->tags['blockstart'], $attr));
	}
/**
 * Closes an Ajax-updateable DIV element
 *
 * @param string $id The DOM ID of the element
 * @return string HTML code
 */
	function divEnd($id) {
		if (env('HTTP_X_UPDATE') != null) {
			$divs = explode(' ', env('HTTP_X_UPDATE'));
			if (in_array($id, $divs)) {
				$this->__ajaxBuffer[$id] = ob_get_contents();
				ob_end_clean();
				ob_start();
				return '';
			}
		}
		return $this->output($this->Html->tags['blockend']);
	}
/**
 * Detects Ajax requests
 *
 * @return boolean True if the current request is a Prototype Ajax update call
 */
	function isAjax() {
		return (isset($this->params['isAjax']) && $this->params['isAjax'] === true);
	}
/**
 * Creates a draggable element.  For a reference on the options for this function,
 * check out http://wiki.script.aculo.us/scriptaculous/show/Draggable
 *
 * @param unknown_type $id
 * @param array $options
 * @return unknown
 */
	function drag($id, $options = array()) {
		$var = '';
		if (isset($options['var'])) {
			$var = 'var ' . $options['var'] . ' = ';
			unset($options['var']);
		}
		$options = $this->_buildOptions($this->_optionsToString($options, array('handle', 'constraint')), $this->dragOptions);
		return $this->Javascript->codeBlock("{$var}new Draggable('$id', " .$options . ");");
	}
/**
 * For a reference on the options for this function, check out
 * http://wiki.script.aculo.us/scriptaculous/show/Droppables.add
 *
 * @param unknown_type $id
 * @param array $options
 * @return string
 */
	function drop($id, $options = array()) {
		$optionsString = array('overlap', 'hoverclass');
		if (!isset($options['accept']) || !is_array($options['accept'])) {
			$optionsString[] = 'accept';
		} else if (isset($options['accept'])) {
			$options['accept'] = $this->Javascript->object($options['accept']);
		}
		$options = $this->_buildOptions($this->_optionsToString($options, $optionsString), $this->dropOptions);
		return $this->Javascript->codeBlock("Droppables.add('{$id}', {$options});");
	}
/**
 * Make an element with the given $id droppable, and trigger an Ajax call when a draggable is
 * dropped on it.
 *
 * For a reference on the options for this function, check out
 * http://wiki.script.aculo.us/scriptaculous/show/Droppables.add
 *
 * @param string $id
 * @param array $options
 * @param array $ajaxOptions
 * @return string JavaScript block to create a droppable element
 */
	function dropRemote($id, $options = array(), $ajaxOptions = array()) {
		$options['onDrop'] = "function(element, droppable, event) {" . $this->remoteFunction($ajaxOptions) . "}";
		$optionsString = array('overlap', 'hoverclass');
		if (!isset($options['accept']) || !is_array($options['accept'])) {
			$optionsString[] = 'accept';
		} else if (isset($options['accept'])) {
			$options['accept'] = $this->Javascript->object($options['accept']);
		}
		$options = $this->_buildOptions($this->_optionsToString($options, $optionsString), $this->dropOptions);
		return $this->Javascript->codeBlock("Droppables.add('{$id}', {$options});");
	}
/**
 * Makes a slider control.
 *
 * @param string $id DOM ID of slider handle
 * @param string $trackId DOM ID of slider track
 * @param array $options Array of options to control the slider
 * @link http://wiki.script.aculo.us/scriptaculous/show/Slider
 */
	function slider($id, $trackId, $options = array()) {
		if (isset($options['var'])) {
			$var = 'var ' . $options['var'] . ' = ';
			unset($options['var']);
		} else {
			$var = 'var ' . $id . ' = ';
		}

		$options = $this->_optionsToString($options, array('axis', 'handleImage', 'handleDisabled'));
		$callbacks = array('change', 'slide');

		foreach($callbacks as $callback) {
			if (isset($options[$callback])) {
				$options['on' . ucfirst($callback)] = 'function(value) {' . $options[$callback] . '}';
				unset($options[$callback]);
			}
		}

		if (isset($options['values']) && is_array($options['values'])) {
			$options['values'] = $this->Javascript->object($options['values']);
		}

		$options = $this->_buildOptions($options, $this->sliderOptions);
		return $this->Javascript->codeBlock("{$var}new Control.Slider('$id', '$trackId', $options);");
	}
/**
 * Makes an Ajax In Place editor control.
 *
 * @param string $id DOM ID of input element
 * @param string $url Postback URL of saved data
 * @param array $options Array of options to control the editor, including ajaxOptions (see link).
 * @link http://wiki.script.aculo.us/scriptaculous/show/Ajax.InPlaceEditor
 */
	function editor($id, $url, $options = array()) {
		$url = $this->url($url);
		$options['ajaxOptions'] = $this->__optionsForAjax($options);

		foreach ($this->ajaxOptions as $opt) {
			if (isset($options[$opt])) {
				unset($options[$opt]);
			}
		}

		if (isset($options['callback'])) {
			$options['callback'] = 'function(form, value) {' . $options['callback'] . '}';
		}

		$type = 'InPlaceEditor';
		if (isset($options['collection']) && is_array($options['collection'])) {
			$options['collection'] = $this->Javascript->object($options['collection']);
			$type = 'InPlaceCollectionEditor';
		}

		$var = '';
		if (isset($options['var'])) {
			$var = 'var ' . $options['var'] . ' = ';
			unset($options['var']);
		}

		$options = $this->_optionsToString($options, array('okText', 'cancelText', 'savingText', 'formId', 'externalControl', 'highlightcolor', 'highlightendcolor', 'savingClassName', 'formClassName', 'loadTextURL', 'loadingText', 'clickToEditText', 'okButton', 'cancelLink'));
		$options = $this->_buildOptions($options, $this->editorOptions);
		return $this->Javascript->codeBlock("{$var}new Ajax.{$type}('{$id}', '{$url}', {$options});");
	}
/**
 * Makes a list or group of floated objects sortable.
 *
 * @param string $id DOM ID of parent
 * @param array $options Array of options to control sort.http://wiki.script.aculo.us/scriptaculous/show/Sortable.create
 * @link http://wiki.script.aculo.us/scriptaculous/show/Sortable.create
 */
	function sortable($id, $options = array()) {
		if (!empty($options['url'])) {
			if (empty($options['with'])) {
				$options['with'] = "Sortable.serialize('$id')";
			}
			$options['onUpdate'] = 'function(sortable) {' . $this->remoteFunction($options) . '}';
		}
		$block = true;

		if (isset($options['block'])) {
			$block = $options['block'];
			unset($options['block']);
		}
		$strings = array('tag', 'constraint', 'only', 'handle', 'hoverclass', 'tree', 'treeTag', 'update', 'overlap');
		if (isset($options['scroll']) && $options['scroll'] != 'window' && strpos($options['scroll'], '$(') !== 0) {
			$strings[] = 'scroll';
		}

		$options = $this->_optionsToString($options, $strings);
		$options = array_merge($options, $this->_buildCallbacks($options));
		$options = $this->_buildOptions($options, $this->sortOptions);
		$result = "Sortable.create('$id', $options);";
		if (!$block) {
			return $result;
		}
		return $this->Javascript->codeBlock($result);
	}
/**
 * Private helper function for Javascript.
 *
 * @param array $options Set of options
 * @access private
 */
	function __optionsForAjax($options) {
		if (isset($options['indicator'])) {
			if (isset($options['loading'])) {
				if (!empty($options['loading']) && substr(trim($options['loading']), -1, 1) != ';') {
					$options['loading'] .= '; ';
				}
				$options['loading'] .= "Element.show('{$options['indicator']}');";
			} else {
				$options['loading'] = "Element.show('{$options['indicator']}');";
			}
			if (isset($options['complete'])) {
				if (!empty($options['complete']) && substr(trim($options['complete']), -1, 1) != ';') {
					$options['complete'] .= '; ';
				}
				$options['complete'] .= "Element.hide('{$options['indicator']}');";
			} else {
				$options['complete'] = "Element.hide('{$options['indicator']}');";
			}
			unset($options['indicator']);
		}

		$jsOptions = array_merge(
			array('asynchronous' => 'true', 'evalScripts'  => 'true'),
			$this->_buildCallbacks($options)
		);
		$options = $this->_optionsToString($options, array('contentType', 'encoding', 'fallback', 'method', 'postBody', 'update', 'url'));
		$jsOptions = array_merge($jsOptions, array_intersect_key($options, array_flip(array('contentType', 'encoding', 'method', 'postBody'))));

		foreach ($options as $key => $value) {
			switch($key) {
				case 'type':
					$jsOptions['asynchronous'] = ife(($value == 'synchronous'), 'false', 'true');
				break;
				case 'evalScripts':
					$jsOptions['evalScripts'] = ife($value, 'true', 'false');
				break;
				case 'position':
					$jsOptions['insertion'] = "Insertion." . Inflector::camelize($options['position']);
				break;
				case 'with':
					$jsOptions['parameters'] = $options['with'];
				break;
				case 'form':
					$jsOptions['parameters'] = 'Form.serialize(this)';
				break;
				case 'requestHeaders':
					$keys = array();
					foreach ($value as $key => $val) {
						$keys[] = "'" . $key . "'";
						$keys[] = "'" . $val . "'";
					}
					$jsOptions['requestHeaders'] = '[' . join(', ', $keys) . ']';
				break;
			}
		}
		return $this->_buildOptions($jsOptions, $this->ajaxOptions);
	}
/**
 * Private Method to return a string of html options
 * option data as a JavaScript options hash.
 *
 * @param array $options	Options in the shape of keys and values
 * @param array $extra	Array of legal keys in this options context
 * @return array Array of html options
 * @access private
 */
	function __getHtmlOptions($options, $extra = array()) {
		foreach (array_merge($this->ajaxOptions, $this->callbacks, $extra) as $key) {
			if (isset($options[$key])) {
				unset($options[$key]);
			}
		}
		return $options;
	}
/**
 * Returns a string of JavaScript with the given option data as a JavaScript options hash.
 *
 * @param array $options	Options in the shape of keys and values
 * @param array $acceptable	Array of legal keys in this options context
 * @return string	String of Javascript array definition
 */
	function _buildOptions($options, $acceptable) {
		if (is_array($options)) {
			$out = array();

			foreach ($options as $k => $v) {
				if (in_array($k, $acceptable)) {
					if ($v === true) {
						$v = 'true';
					} elseif ($v === false) {
						$v = 'false';
					}
					$out[] = "$k:$v";
				}
			}

			$out = join(', ', $out);
			$out = '{' . $out . '}';
			return $out;
		} else {
			return false;
		}
	}
/**
 * Return JavaScript text for an observer...
 *
 * @param string $klass Name of JavaScript class
 * @param string $name
 * @param array $options	Ajax options
 * @return string Formatted JavaScript
 */
	function _buildObserver($klass, $name, $options = null) {
		if (!isset($options['with']) && isset($options['update'])) {
			$options['with'] = 'value';
		}

		$callback = $this->remoteFunction($options);
		$javascript  = "new $klass('$name', ";
		$javascript .= (!isset($options['frequency']) || intval($options['frequency']) == 0 ? '' : $options['frequency'] . ', ' ) . "function(element, value) {";
		$javascript .= "$callback})";
		return $javascript;
	}
/**
 * Return Javascript text for callbacks.
 *
 * @param array $options Option array where a callback is specified
 * @return array Options with their callbacks properly set
 * @access protected
 */
	function _buildCallbacks($options) {
		$callbacks = array();

		foreach ($this->callbacks as $callback) {
			if (isset($options[$callback])) {
				$name = 'on' . ucfirst($callback);
				$code = $options[$callback];
				switch($name) {
					case 'onComplete':
						$callbacks[$name] = "function(request, json) {" . $code . "}";
						break;
					case 'onCreate':
						$callbacks[$name] = "function(request, xhr) {" . $code . "}";
						break;
					case 'onException':
						$callbacks[$name] = "function(request, exception) {" . $code . "}";
						break;
					default:
						$callbacks[$name] = "function(request) {" . $code . "}";
						break;
				}
				if (isset($options['bind'])) {
					if ((is_array($options['bind']) && in_array($callback, $options['bind'])) || (is_string($options['bind']) && strpos($options['bind'], $callback) !== false)) {
						$callbacks[$name] .= ".bind(this)";
					}
				}
			}
		}
		return $callbacks;
	}
/**
 * Returns a string of JavaScript with a string representation of given options array.
 *
 * @param array $options	Ajax options array
 * @param array $stringOpts	Options as strings in an array
 * @access private
 * @return array
 */
	function _optionsToString($options, $stringOpts = array()) {
		foreach ($stringOpts as $option) {
			if (isset($options[$option]) && !empty($options[$option]) && is_string($options[$option]) && $options[$option][0] != "'") {
				if ($options[$option] === true || $options[$option] === 'true') {
					$options[$option] = 'true';
				} elseif ($options[$option] === false || $options[$option] === 'false') {
					$options[$option] = 'false';
				} else {
					$options[$option] = "'{$options[$option]}'";
				}
			}
		}
		return $options;
	}
/**
 * Executed after a view has rendered, used to include bufferred code
 * blocks.
 *
 * @access public
 */
	function afterRender() {
		if (env('HTTP_X_UPDATE') != null && !empty($this->__ajaxBuffer)) {
			@ob_end_clean();

			$data = array();
			$divs = explode(' ', env('HTTP_X_UPDATE'));
			$keys = array_keys($this->__ajaxBuffer);

			if (count($divs) == 1 && in_array($divs[0], $keys)) {
				e($this->__ajaxBuffer[$divs[0]]);
			} else {
				foreach ($this->__ajaxBuffer as $key => $val) {
					if (in_array($key, $divs)) {
						$data[] = $key . ':"' . rawurlencode($val) . '"';
					}
				}
				$out  = 'var __ajaxUpdater__ = {' . join(", \n", $data) . '};' . "\n";
				$out .= 'for (n in __ajaxUpdater__) { if (typeof __ajaxUpdater__[n] == "string" && $(n)) Element.update($(n), unescape(decodeURIComponent(__ajaxUpdater__[n]))); }';
				e($this->Javascript->codeBlock($out, false));
			}
			$scripts = $this->Javascript->getCache();

			if (!empty($scripts)) {
				e($this->Javascript->codeBlock($scripts, false));
			}

			$this->_stop();
		}
	}
}

?>