added extra buttons

Author: dimmitri

src/MultipleInput.php

@@ -146,6 +146,20 @@ class MultipleInput extends InputWidget
      */
     public $cloneButton = false;
 
+    /**
+     * @var string|\Closure the HTML content that will be rendered after the buttons.
+     *
+     * ```php
+     * function ($model, $index, $context)
+     * ```
+     *
+     * - `$model`: the current data model being rendered
+     * - `$index`: the zero-based index of the data model in the model array
+     * - `$context`: the MultipleInput widget object
+     *
+     */
+    public $extraButtons;
+
     /**
      * Initialization.
      *
@@ -258,6 +272,7 @@ private function createRenderer()
             'sortable'          => $this->sortable,
             'enableError'       => $this->enableError,
             'cloneButton'       => $this->cloneButton,
+            'extraButtons'      => $this->extraButtons,
         ];
 
         if ($this->removeButtonOptions !== null) {

src/renderers/BaseRenderer.php

@@ -13,6 +13,7 @@
 use yii\helpers\Html;
 use yii\helpers\Json;
 use yii\base\InvalidConfigException;
+use yii\base\InvalidParamException;
 use yii\base\Model;
 use yii\base\NotSupportedException;
 use yii\base\BaseObject;
@@ -142,6 +143,20 @@ abstract class BaseRenderer extends BaseObject implements RendererInterface
      */
     public $cloneButton = false;
 
+    /**
+     * @var string|\Closure the HTML content that will be rendered after the buttons.
+     *
+     * ```php
+     * function ($model, $index, $context)
+     * ```
+     *
+     * - `$model`: the current data model being rendered
+     * - `$index`: the zero-based index of the data model in the model array
+     * - `$context`: the MultipleInput widget object
+     *
+     */
+    public $extraButtons;
+
     /**
      * @inheritdoc
      */
@@ -275,6 +290,33 @@ protected function initColumns()
         }
     }
 
+    /**
+     * Render extra content in action column.
+     *
+     * @param $index
+     * @param $item
+     *
+     * @return string
+     */
+    protected function getExtraButtons($index, $item)
+    {
+        if (!$this->extraButtons) {
+            return '';
+        }
+
+        if (is_callable($this->extraButtons)) {
+            $content = call_user_func($this->extraButtons, $item, $index, $this->context);
+        } else {
+            $content = $this->extraButtons;
+        }
+
+        if (!is_string($content)) {
+            throw new InvalidParamException('Property "extraButtons" must return string.');
+        }
+
+        return $content;
+    }
+
     public function render()
     {
         $this->initColumns();

src/renderers/ListRenderer.php

@@ -228,12 +228,15 @@ public function renderCellContent($column, $index)
      * Renders the action column.
      *
      * @param null|int $index
+     * @param null|ActiveRecordInterface|array $item
      * @return string
      * @throws \Exception
      */
-    private function renderActionColumn($index = null)
+    private function renderActionColumn($index = null, $item = null)
     {
-        return Html::tag('td', $this->getActionButton($index), [
+        $content = $this->getActionButton($index) . $this->getExtraButtons($index, $item);
+
+        return Html::tag('td', $content, [
             'class' => 'list-cell__button',
         ]);
     }

src/renderers/TableRenderer.php

@@ -188,7 +188,7 @@ private function renderRowContent($index = null, $item = null)
         $hiddenInputs = [];
         $isLastRow = $this->max === $this->min;
         if (!$isLastRow && $this->isAddButtonPositionRowBegin()) {
-            $cells[] = $this->renderActionColumn($index, true);
+            $cells[] = $this->renderActionColumn($index, $item, true);
         }
 
         foreach ($this->columns as $column) {
@@ -205,7 +205,7 @@ private function renderRowContent($index = null, $item = null)
         }
 
         if (!$isLastRow) {
-            $cells[] = $this->renderActionColumn($index);
+            $cells[] = $this->renderActionColumn($index, $item);
         }
 
         if ($hiddenInputs) {
@@ -293,12 +293,15 @@ public function renderCellContent($column, $index)
      * Renders the action column.
      *
      * @param null|int $index
+     * @param null|ActiveRecordInterface|array $item
      * @param bool $isFirstColumn
      * @return string
      */
-    private function renderActionColumn($index = null, $isFirstColumn = false)
+    private function renderActionColumn($index = null, $item = null, $isFirstColumn = false)
     {
-        return Html::tag('td', $this->getActionButton($index, $isFirstColumn), [
+        $content = $this->getActionButton($index, $isFirstColumn) . $this->getExtraButtons($index, $item);
+
+        return Html::tag('td', $content, [
             'class' => 'list-cell__button',
         ]);
     }