Any, isEmpty and Count

Author: arrilot

README.md

@@ -309,3 +309,9 @@ equals
 
 You can also set a separator to display between widgets in a group.
 `Widget::group('sidebar')->setSeparator('<hr>');` 
+
+### Checking the state of a widget group
+
+`Widget::group('sidebar')->isEmpty();` 
+`Widget::group('sidebar')->any();` 
+`Widget::group('sidebar')->count();` 

src/WidgetGroup.php

@@ -140,6 +140,41 @@ public function setSeparator($separator)
         return $this;
     }
 
+    /**
+     * Check if there are any widgets in the group.
+     *
+     * @return bool
+     */
+    public function any()
+    {
+        return ! $this->isEmpty();
+    }
+
+    /**
+     * Check if there are no widgets in the group.
+     *
+     * @return bool
+     */
+    public function isEmpty()
+    {
+        return empty($this->widgets);
+    }
+
+    /**
+     * Count the number of widgets in this group.
+     *
+     * @return int
+     */
+    public function count()
+    {
+        $count = 0;
+        foreach ($this->widgets as $position => $widgets) {
+            $count += count($widgets);
+        }
+
+        return $count;
+    }
+
     /**
      * Add a widget with a given type to the array.
      *

tests/WidgetGroupTest.php

@@ -93,4 +93,39 @@ public function testSeparator()
                 '</script>'.
             '</div>', $output);
     }
+
+    public function testIsEmpty()
+    {
+        $this->assertTrue($this->widgetGroup->isEmpty());
+
+        $this->widgetGroup->addWidget('Slider');
+
+        $this->assertFalse($this->widgetGroup->isEmpty());
+    }
+
+    public function testAny()
+    {
+        $this->assertFalse($this->widgetGroup->any());
+
+        $this->widgetGroup->addWidget('Slider');
+
+        $this->assertTrue($this->widgetGroup->any());
+    }
+
+    public function testCount()
+    {
+        $this->assertSame(0, $this->widgetGroup->count());
+
+        $this->widgetGroup->addWidget('Slider');
+
+        $this->assertSame(1, $this->widgetGroup->count());
+
+        $this->widgetGroup->position(50)->addWidget('Slider');
+
+        $this->assertSame(2, $this->widgetGroup->count());
+
+        $this->widgetGroup->position(50)->addWidget('Slider');
+
+        $this->assertSame(3, $this->widgetGroup->count());
+    }
 }