Element Base: Added get_render_attributes method. Closes elementor#…

…5878

includes/base/element-base.php

@@ -516,6 +516,43 @@ public function add_render_attribute( $element, $key = null, $value = null, $ove
 		return $this;
 	}
 
+	/**
+	 * Get Render Attributes
+	 *
+	 * Used to retrieve render attribute.
+	 *
+	 * The returned array is either all elements and their attributes if no `$element` is specified, an array of all
+	 * attributes of a specific element or a specific attribute properties if `$key` is specified.
+	 *
+	 * Returns null if one of the requested parameters isn't set.
+	 *
+	 * @param string $element
+	 * @param string $key
+	 *
+	 * @return array
+	 */
+	public function get_render_attributes( $element = '', $key = '' ) {
+		$attributes = $this->render_attributes;
+
+		if ( $element ) {
+			if ( ! isset( $attributes[ $element ] ) ) {
+				return null;
+			}
+
+			$attributes = $attributes[ $element ];
+
+			if ( $key ) {
+				if ( ! isset( $attributes[ $key ] ) ) {
+					return null;
+				}
+
+				$attributes = $attributes[ $key ];
+			}
+		}
+
+		return $attributes;
+	}
+
 	/**
 	 * Set render attribute.
 	 *