Merge pull request #328 from tonydspaniard/327-bootstrap-typeahead

yii/bootstrap/TypeAhead.php

+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\bootstrap;
+
+use Yii;
+use yii\base\InvalidConfigException;
+use yii\base\Model;
+use yii\helpers\Html;
+
+/**
+ * TypeAhead renders a typehead bootstrap javascript component.
+ *
+ * For example,
+ *
+ * ```php
+ * echo TypeAhead::widget(array(
+ *     'form' => $form,
+ *     'model' => $model,
+ *     'attribute' => 'country',
+ *     'pluginOptions' => array(
+ *         'source' => array('USA', 'ESP'),
+ *     ),
+ * ));
+ * ```
+ *
+ * The following example will use the name property instead
+ *
+ * ```php
+ * echo TypeAhead::widget(array(
+ *     'name'  => 'country',
+ *     'pluginOptions' => array(
+ *         'source' => array('USA', 'ESP'),
+ *     ),
+ * ));
+ *```
+ *
+ * @see http://twitter.github.io/bootstrap/javascript.html#typeahead
+ * @author Antonio Ramirez <amigo.cobos@gmail.com>
+ * @since 2.0
+ */
+class TypeAhead extends Widget
+{
+	/**
+	 * @var \yii\base\Model the data model that this field is associated with
+	 */
+	public $model;
+	/**
+	 * @var string the model attribute that this field is associated with
+	 */
+	public $attribute;
+	/**
+	 * @var string the input name. This must be set if [[form]] is not set.
+	 */
+	public $name;
+	/**
+	 * @var string the input value.
+	 */
+	public $value;
+
+
+	/**
+	 * Renders the widget
+	 */
+	public function run()
+	{
+		echo "\n" . $this->renderField() . "\n";
+		$this->registerPlugin('typeahead');
+	}
+
+	/**
+	 * Renders the TypeAhead field. If [[model]] has been specified then it will render an active field.
+	 * If [[model]] is null or not from an [[Model]] instance, then the field will be rendered according to
+	 * the [[name]] attribute.
+	 * @return string the rendering result
+	 * @throws InvalidConfigException when none of the required attributes are set to render the textInput. That is,
+	 * if [[model]] and [[attribute]] are not set, then [[name]] is required.
+	 */
+	public function renderField()
+	{
+		if ($this->model instanceof Model && $this->attribute !== null) {
+
+			$this->options['id'] = Html::getInputId($this->model, $this->attribute);
+
+			return Html::activeTextInput($this->model, $this->attribute, $this->options);
+		}
+
+		if ($this->name === null) {
+			throw new InvalidConfigException(
+				get_class($this) . ' must specify "form", "model" and "attribute" or "name" property values'
+			);
+		}
+
+		return Html::textInput($this->name, $this->value, $this->options);
+	}
+}