add google places helper

src/View/Helper/GoogleMapHelper.php

@@ -237,6 +237,7 @@ class GoogleMapHelper extends Helper {
 		'localImages' => false,
 		'https' => null, // auto detect
 		'key' => null,
+		'libraries' => null,
 	];
 
 	/**
@@ -332,6 +333,7 @@ public function initialize(array $config) {
 	 * - key
 	 * - api
 	 * - language (iso2: en, de, ja, ...)
+	 * - libraries
 	 *
 	 * You can adds more after the URL like "&key=value&..." via
 	 * - query string array: additional query strings (e.g. callback for deferred execution - not supported yet by this helper)
@@ -342,6 +344,10 @@ public function initialize(array $config) {
 	public function apiUrl(array $query = []) {
 		$url = $this->_protocol() . static::API;
 
+		if ($this->_runtimeConfig['libraries']) {
+			$libraries = is_array( $this->_runtimeConfig['libraries'] ) ? implode( ',', $this->_runtimeConfig['libraries'] ) : $this->_runtimeConfig['libraries'];
+			$query['libraries'] = $libraries;
+		}
 		if ($this->_runtimeConfig['map']['api']) {
 			 $query['v'] = $this->_runtimeConfig['map']['api'];
 		}

src/View/Helper/GooglePlacesHelper.php

@@ -0,0 +1,114 @@
+<?php
+
+namespace Geo\View\Helper;
+
+/**
+ * This is a CakePHP helper that helps users to integrate Google Places
+ * into their application by only writing PHP code. This helper depends on jQuery.
+ *
+ * CodeAPI: http://code.google.com/intl/de-DE/apis/maps/documentation/javascript/basics.html
+ * Icons/Images: http://gmapicons.googlepages.com/home
+ *
+ * @author Michael Heit
+ * @link http://www.dereuromark.de/2010/12/21/googlemapsv3-cakephp-helper/
+ * @license MIT License (http://www.opensource.org/licenses/mit-license.php)
+ * @property \Cake\View\Helper\HtmlHelper $Html
+ * @property \Cake\View\Helper\FormHelper $Form
+ */
+class GooglePlacesHelper extends GoogleMapHelper {
+
+	/**
+	 * Needed helpers
+	 *
+	 * @var array
+	 */
+	public $helpers = ['Form', 'Html'];
+
+	/**
+	 * Wrapper function for control like Form->input
+	 *
+	 * @param string $fieldName name of input field
+	 * @param array $fieldOptions associative array of settings are passed. Should be the same as uses on Form->control
+	 * @param array $googleOptions associative array of settings for places.Autocomplete
+	 *
+	 * @return string divContainer
+	 */
+	public function input($fieldName, array $fieldOptions = [], array $googleOptions = []) {
+		return $this->control($fieldName, $fieldOptions, $googleOptions);
+	}
+
+	/**
+	 * This the initialization point of the script
+	 * Returns the div container you can echo on the website
+	 *
+	 * @param string $fieldName name of input field
+	 * @param array $fieldOptions associative array of settings are passed. Should be the same as uses on Form->control
+	 * @param array $googleOptions associative array of settings for places.Autocomplete
+	 *
+	 * @return string divContainer
+	 */
+	public function control($fieldName, array $fieldOptions = [], array $googleOptions = []) {
+		$id = isset($fieldOptions['id']) && $fieldOptions['id'] != '' ? $fieldOptions['id'] : $fieldName;
+
+		$html = $this->Form->control($fieldName, $fieldOptions);
+		$html .= $this->Form->hidden("{$fieldName}_lat", ['id' => "{$id}_lat"]);
+		$html .= $this->Form->hidden("{$fieldName}_lon", ['id' => "{$id}_lon"]);
+
+		$html = $this->_script($id, $googleOptions) . $html;
+
+		return $html;
+	}
+
+	/**
+	 * Inserts the required javascript code
+	 *
+	 * @param string $id the id of the input field
+	 * @param array $options associative array of settings for places.Autocomplete
+	 *
+	 * @return string the scriptBlock for api
+	 */
+	protected function _script($id, $options = []) {
+		$api = '';
+		// autoinclude js?
+		if ($this->_runtimeConfig['autoScript'] && !$this->_apiIncluded) {
+			$res = $this->Html->script($this->apiUrl(), ['block' => $this->_runtimeConfig['block']]);
+			$this->_apiIncluded = true;
+
+			if (!$this->_runtimeConfig['block']) {
+				$api = $res . PHP_EOL;
+			}
+			// usually already included
+			//http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js
+		}
+
+		$js = "
+			function initialize() {
+				var options = " . json_encode($options) . ";
+		        var input = document.getElementById('" . $id . "');
+		        var hidden_lat = document.getElementById('" . $id . "_lat');
+		        var hidden_lon = document.getElementById('" . $id . "_lon');
+		        var autocomplete = new google.maps.places.Autocomplete(input, options);
+
+				google.maps.event.addDomListener(input, 'keydown', function(event) { 
+				    if (event.keyCode === 13 && $('.pac-container:visible').length ) { 
+				        event.preventDefault(); 
+				    }
+				}); 
+		        autocomplete.addListener('place_changed', function() {
+		            var place = autocomplete.getPlace();
+		            hidden_lat.value = place.geometry.location.lat()
+		            hidden_lon.value = place.geometry.location.lng()
+		        });
+
+		    }
+		    initialize();
+		";
+
+		$script = 'jQuery(document).ready(function() {' . $js . '});';
+
+		$this->Html->scriptBlock($script, ['block' => true]);
+
+		return $api;
+	}
+
+}