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<?php |
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/** |
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*## TbTypeahead class file. |
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* |
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* @author Amr Bedair <[email protected]> |
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* @license http://www.opensource.org/licenses/bsd-license.php New BSD License |
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* @since v4.0.0 |
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* |
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* @todo add support of bloodhound datasets, and remote ajax |
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* @see <https://github.com/twitter/typeahead.js/blob/master/doc/jquery_typeahead.md#bloodhound-integration> |
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*/ |
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/** |
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*## Twitter typeahead widget. |
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* |
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* @see https://github.com/twitter/typeahead.js |
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* |
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* @since 4.0.0 |
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* @package booster.widgets.forms.inputs |
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*/ |
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Yii::import('booster.widgets.TbBaseInputWidget'); |
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class TbTypeahead extends TbBaseInputWidget { |
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/** |
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* @var array the options for the twitter typeahead widget |
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* @see <https://github.com/twitter/typeahead.js/blob/master/doc/jquery_typeahead.md#options> |
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*/ |
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public $options = array(); |
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/** |
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* @var array the datasets for the twitter typeahead widget |
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* @see <https://github.com/twitter/typeahead.js/blob/master/doc/jquery_typeahead.md#datasets> |
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*/ |
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public $datasets = array(); |
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/** |
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* Initializes the widget. |
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*/ |
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public function init() { |
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if(empty($this->options)) |
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$this->options['minLength'] = 1; |
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$this->registerClientScript(); |
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if(!isset($this->htmlOptions['class']) || empty($this->htmlOptions['class'])) |
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$this->htmlOptions['class'] = 'typeahead'; |
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else |
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$this->htmlOptions['class'] .= ' typeahead'; |
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parent::init(); |
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} |
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/** |
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* Runs the widget. |
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*/ |
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public function run() { |
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list($name, $id) = $this->resolveNameID(); |
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if (isset($this->htmlOptions['id'])) { |
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$id = $this->htmlOptions['id']; |
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} else { |
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$this->htmlOptions['id'] = $id; |
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} |
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if (isset($this->htmlOptions['name'])) { |
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$name = $this->htmlOptions['name']; |
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} |
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if ($this->hasModel()) { |
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echo CHtml::activeTextField($this->model, $this->attribute, $this->htmlOptions); |
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} else { |
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echo CHtml::textField($name, $this->value, $this->htmlOptions); |
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} |
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if (isset($this->datasets['source'])) |
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$this->datasets = array($this->datasets); |
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$datasets_js = array(); |
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foreach ($this->datasets as $i => $dataset) { |
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if (!isset($dataset['source'])) { |
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throw new CException('The source for a Typeahead dataset was not set'); |
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} |
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if (isset($dataset['source']['name'])) { |
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$name = preg_replace('/[^\da-z]/i', '_', $dataset['source']['name']); |
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$bloodhound_id = $this->id .'_bloodhound_'. $name; |
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$dataset['source'] = 'js:'. $bloodhound_id .'.ttAdapter()'; |
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} else { |
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$dataset['source'] = 'js:substringMatcher(_'. $this->id .'_source_list_'. $i .')'; |
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} |
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$this->datasets[$i] = $dataset; |
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$datasets_js[] = CJavaScript::encode($dataset); |
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} |
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$options = CJavaScript::encode($this->options); |
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$datasets = implode(', ', $datasets_js); |
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Yii::app()->clientScript->registerScript(__CLASS__ . '#' . $id, "jQuery('#{$id}').typeahead({$options}, {$datasets});"); |
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} |
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function registerClientScript() { |
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$booster = Booster::getBooster(); |
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$booster->registerPackage('typeahead'); |
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$datasets = $this->datasets; |
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if (isset($this->datasets['source'])) |
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$datasets = array($this->datasets); |
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Yii::app()->clientScript->registerScript(__CLASS__ . '#substringMatcher', ' |
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var substringMatcher = function(strs) { |
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return function findMatches(q, cb) { |
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var matches, substringRegex; |
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// an array that will be populated with substring matches |
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matches = []; |
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// regex used to determine if a string contains the substring `q` |
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substrRegex = new RegExp(q, "i"); |
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// iterate through the pool of strings and for any string that |
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// contains the substring `q`, add it to the `matches` array |
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$.each(strs, function(i, str) { |
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if (substrRegex.test(str)) { |
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// the typeahead jQuery plugin expects suggestions to a |
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// JavaScript object, refer to typeahead docs for more info |
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matches.push({ value: str }); |
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} |
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}); |
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cb(matches); |
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}; |
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}; |
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', CClientScript::POS_HEAD); |
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if (isset($this->datasets['source'])) |
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$this->datasets = array($this->datasets); |
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foreach ($datasets as $i => $dataset) { |
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if (isset($dataset['source']['name'])) { |
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$name = preg_replace('/[^\da-z]/i', '_', $dataset['source']['name']); |
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$bloodhound_id = $this->id .'_bloodhound_'. $name; |
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$bloodhound_config = CJavaScript::encode($dataset['source']); |
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Yii::app()->clientScript->registerScript(__CLASS__ .'_'. $bloodhound_id, " |
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var $bloodhound_id = new Bloodhound($bloodhound_config); |
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$bloodhound_id.initialize(); |
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", CClientScript::POS_HEAD); |
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} else { |
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$source_list = CJavaScript::encode($dataset['source']); |
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Yii::app()->clientScript->registerScript(__CLASS__ .'#source_list#'. $i, ' |
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var _'.$this->id.'_source_list_'. $i .' = '.$source_list.'; |
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', CClientScript::POS_HEAD); |
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} |
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} |
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} |
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} |
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Adding explicit visibility (
private
,protected
, orpublic
) is generally recommend to communicate to other developers how, and from where this method is intended to be used.