Added support for Bootstrap checkbox/radio toggle buttons

BootstrapWidgetTrait.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\helpers\Json;
+
+/**
+ * BootstrapWidgetTrait is the trait, which provides basic for all bootstrap widgets features.
+ *
+ * Note: class, which uses this trait must declare public field named `options` with the array default value:
+ *
+ * ```php
+ * class MyWidget extends \yii\base\Widget
+ * {
+ *     use BootstrapWidgetTrait;
+ *
+ *     public $options = [];
+ * }
+ * ```
+ *
+ * This field is not present in the trait in order to avoid possible PHP Fatal error on definition conflict.
+ *
+ * @author Antonio Ramirez <amigo.cobos@gmail.com>
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @author Paul Klimov <klimov.paul@gmail.com>
+ * @since 2.0.5
+ */
+trait BootstrapWidgetTrait
+{
+    /**
+     * @var array the options for the underlying Bootstrap JS plugin.
+     * Please refer to the corresponding Bootstrap plugin Web page for possible options.
+     * For example, [this page](http://getbootstrap.com/javascript/#modals) shows
+     * how to use the "Modal" plugin and the supported options (e.g. "remote").
+     */
+    public $clientOptions = [];
+    /**
+     * @var array the event handlers for the underlying Bootstrap JS plugin.
+     * Please refer to the corresponding Bootstrap plugin Web page for possible events.
+     * For example, [this page](http://getbootstrap.com/javascript/#modals) shows
+     * how to use the "Modal" plugin and the supported events (e.g. "shown").
+     */
+    public $clientEvents = [];
+
+
+    /**
+     * Initializes the widget.
+     * This method will register the bootstrap asset bundle. If you override this method,
+     * make sure you call the parent implementation first.
+     */
+    public function init()
+    {
+        parent::init();
+        if (!isset($this->options['id'])) {
+            $this->options['id'] = $this->getId();
+        }
+    }
+
+    /**
+     * Registers a specific Bootstrap plugin and the related events
+     * @param string $name the name of the Bootstrap plugin
+     */
+    protected function registerPlugin($name)
+    {
+        $view = $this->getView();
+
+        BootstrapPluginAsset::register($view);
+
+        $id = $this->options['id'];
+
+        if ($this->clientOptions !== false) {
+            $options = empty($this->clientOptions) ? '' : Json::htmlEncode($this->clientOptions);
+            $js = "jQuery('#$id').$name($options);";
+            $view->registerJs($js);
+        }
+
+        $this->registerClientEvents();
+    }
+
+    /**
+     * Registers JS event handlers that are listed in [[clientEvents]].
+     * @since 2.0.2
+     */
+    protected function registerClientEvents()
+    {
+        if (!empty($this->clientEvents)) {
+            $id = $this->options['id'];
+            $js = [];
+            foreach ($this->clientEvents as $event => $handler) {
+                $js[] = "jQuery('#$id').on('$event', $handler);";
+            }
+            $this->getView()->registerJs(implode("\n", $js));
+        }
+    }
+}
\ No newline at end of file

CHANGELOG.md

@@ -10,6 +10,7 @@ Yii Framework 2 bootstrap extension Change Log
 - Enh #42: Added support for the glyphicons via `yii\bootstrap\Html::icon()` (klimov-paul)
 - Enh #43: Added support for the static form controls via `yii\bootstrap\Html` (klimov-paul)
 - Enh #44: Fixed `yii\bootstrap\ButtonDropdown` renders two buttons have same with id if 'split' is enabled (klimov-paul)
+- Enh #45: Added support for Bootstrap checkbox/radio toggle buttons (RomeroMsk, klimov-paul)
 
 
 2.0.4 May 10, 2015

InputWidget.php

+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\bootstrap;
+
+/**
+ * InputWidget is an adjusted for bootstrap needs version of [[\yii\widgets\InputWidget]].
+ *
+ * @author Paul Klimov <klimov.paul@gmail.com>
+ * @since 2.0.5
+ */
+class InputWidget extends \yii\widgets\InputWidget
+{
+    use BootstrapWidgetTrait;
+} 
\ No newline at end of file

ToggleButtonGroup.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\base\InvalidConfigException;
+
+/**
+ * ToggleButtonGroup allows rendering form inputs Checkbox/Radio toggle button groups.
+ *
+ * You can use this widget in an [[yii\bootstrap\ActiveForm|ActiveForm]] using the [[yii\widgets\ActiveField::widget()|widget()]]
+ * method, for example like this:
+ *
+ * ```php
+ * <?= $form->field($model, 'item_id')->widget(\yii\bootstrap\ToggleButtonGroup::classname(), [
+ *     // configure additional widget properties here
+ * ]) ?>
+ * ```
+ *
+ * @see http://getbootstrap.com/javascript/#buttons-checkbox-radio
+ *
+ * @author Paul Klimov <klimov.paul@gmail.com>
+ * @since 2.0.5
+ */
+class ToggleButtonGroup extends InputWidget
+{
+    /**
+     * @var string input type, can be:
+     * - 'checkbox'
+     * - 'radio'
+     */
+    public $type;
+    /**
+     * @var array the data item used to generate the checkboxes.
+     * The array values are the labels, while the array keys are the corresponding checkbox or radio values.
+     */
+    public $items = [];
+    /**
+     * @var array, the HTML attributes for the label (button) tag.
+     * @see Html::checkbox()
+     * @see Html::radio()
+     */
+    public $labelOptions = [];
+    /**
+     * @var boolean whether the items labels should be HTML-encoded.
+     */
+    public $encodeLabels = true;
+
+
+    /**
+     * @inheritdoc
+     */
+    public function init()
+    {
+        parent::init();
+        $this->registerPlugin('button');
+        Html::addCssClass($this->options, 'btn-group');
+        $this->options['data-toggle'] = 'buttons';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function run()
+    {
+        if (!isset($this->options['item'])) {
+            $this->options['item'] = [$this, 'renderItem'];
+        }
+        switch ($this->type) {
+            case 'checkbox' :
+                return Html::activeCheckboxList($this->model, $this->attribute, $this->items, $this->options);
+            case 'radio':
+                return Html::activeRadioList($this->model, $this->attribute, $this->items, $this->options);
+            default:
+                throw new InvalidConfigException("Unsupported type '{$this->type}'");
+        }
+    }
+
+    /**
+     * Default callback for checkbox/radio list item rendering.
+     * @param integer $index item index.
+     * @param string $label item label.
+     * @param string $name input name.
+     * @param boolean $checked whether value is checked or not.
+     * @param string $value input value.
+     * @return string generated HTML.
+     * @see Html::checkbox()
+     * @see Html::radio()
+     */
+    public function renderItem($index, $label, $name, $checked, $value)
+    {
+        $labelOptions = $this->labelOptions;
+        Html::addCssClass($labelOptions, 'btn');
+        if ($checked) {
+            Html::addCssClass($labelOptions, 'active');
+        }
+        $type = $this->type;
+        if ($this->encodeLabels) {
+            $label = Html::encode($label);
+        }
+        return Html::$type($name, $checked, ['label' => $label, 'labelOptions' => $labelOptions, 'value' => $value]);
+    }
+}
\ No newline at end of file

Widget.php

@@ -7,9 +7,6 @@
 
 namespace yii\bootstrap;
 
-use Yii;
-use yii\helpers\Json;
-
 /**
  * \yii\bootstrap\Widget is the base class for all bootstrap widgets.
  *
@@ -19,74 +16,11 @@ use yii\helpers\Json;
  */
 class Widget extends \yii\base\Widget
 {
+    use BootstrapWidgetTrait;
+
     /**
      * @var array the HTML attributes for the widget container tag.
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
     public $options = [];
-    /**
-     * @var array the options for the underlying Bootstrap JS plugin.
-     * Please refer to the corresponding Bootstrap plugin Web page for possible options.
-     * For example, [this page](http://getbootstrap.com/javascript/#modals) shows
-     * how to use the "Modal" plugin and the supported options (e.g. "remote").
-     */
-    public $clientOptions = [];
-    /**
-     * @var array the event handlers for the underlying Bootstrap JS plugin.
-     * Please refer to the corresponding Bootstrap plugin Web page for possible events.
-     * For example, [this page](http://getbootstrap.com/javascript/#modals) shows
-     * how to use the "Modal" plugin and the supported events (e.g. "shown").
-     */
-    public $clientEvents = [];
-
-
-    /**
-     * Initializes the widget.
-     * This method will register the bootstrap asset bundle. If you override this method,
-     * make sure you call the parent implementation first.
-     */
-    public function init()
-    {
-        parent::init();
-        if (!isset($this->options['id'])) {
-            $this->options['id'] = $this->getId();
-        }
-    }
-
-    /**
-     * Registers a specific Bootstrap plugin and the related events
-     * @param string $name the name of the Bootstrap plugin
-     */
-    protected function registerPlugin($name)
-    {
-        $view = $this->getView();
-
-        BootstrapPluginAsset::register($view);
-
-        $id = $this->options['id'];
-
-        if ($this->clientOptions !== false) {
-            $options = empty($this->clientOptions) ? '' : Json::htmlEncode($this->clientOptions);
-            $js = "jQuery('#$id').$name($options);";
-            $view->registerJs($js);
-        }
-
-        $this->registerClientEvents();
-    }
-
-    /**
-     * Registers JS event handlers that are listed in [[clientEvents]].
-     * @since 2.0.2
-     */
-    protected function registerClientEvents()
-    {
-        if (!empty($this->clientEvents)) {
-            $id = $this->options['id'];
-            $js = [];
-            foreach ($this->clientEvents as $event => $handler) {
-                $js[] = "jQuery('#$id').on('$event', $handler);";
-            }
-            $this->getView()->registerJs(implode("\n", $js));
-        }
-    }
 }

tests/ToggleButtonGroupTest.php

+<?php
+
+namespace yiiunit\extensions\bootstrap;
+
+use yii\base\Model;
+use yii\bootstrap\ToggleButtonGroup;
+
+/**
+ * @group bootstrap
+ */
+class ToggleButtonGroupTest extends TestCase
+{
+    public function testCheckbox()
+    {
+        ToggleButtonGroup::$counter = 0;
+        $html = ToggleButtonGroup::widget([
+            'type' => 'checkbox',
+            'model' => new ToggleButtonGroupTestModel(),
+            'attribute' => 'value',
+            'items' => [
+                '1' => 'item 1',
+                '2' => 'item 2',
+            ],
+        ]);
+
+        $expectedHtml = <<<HTML
+<input type="hidden" name="ToggleButtonGroupTestModel[value]" value=""><div id="togglebuttongrouptestmodel-value" class="btn-group" data-toggle="buttons"><label class="btn"><input type="checkbox" name="ToggleButtonGroupTestModel[value][]" value="1"> item 1</label>
+<label class="btn"><input type="checkbox" name="ToggleButtonGroupTestModel[value][]" value="2"> item 2</label></div>
+HTML;
+        $this->assertEqualsWithoutLE($expectedHtml, $html);
+    }
+
+    public function testRadio()
+    {
+        ToggleButtonGroup::$counter = 0;
+        $html = ToggleButtonGroup::widget([
+            'type' => 'radio',
+            'model' => new ToggleButtonGroupTestModel(),
+            'attribute' => 'value',
+            'items' => [
+                '1' => 'item 1',
+                '2' => 'item 2',
+            ],
+        ]);
+
+        $expectedHtml = <<<HTML
+<input type="hidden" name="ToggleButtonGroupTestModel[value]" value=""><div id="togglebuttongrouptestmodel-value" class="btn-group" data-toggle="buttons"><label class="btn"><input type="radio" name="ToggleButtonGroupTestModel[value]" value="1"> item 1</label>
+<label class="btn"><input type="radio" name="ToggleButtonGroupTestModel[value]" value="2"> item 2</label></div>
+HTML;
+        $this->assertEqualsWithoutLE($expectedHtml, $html);
+    }
+}
+
+class ToggleButtonGroupTestModel extends Model
+{
+    public $value;
+}
\ No newline at end of file