项目结构调整

Others/Fluent.Ribbon/Fluent.Ribbon/IDropDownControl.cs

@@ -0,0 +1,36 @@
+namespace Fluent
+{
+    using System;
+    using System.Windows.Controls.Primitives;
+
+    /// <summary>
+    /// Represents control that have drop down popup
+    /// </summary>
+    public interface IDropDownControl
+    {
+        /// <summary>
+        /// Gets drop down popup
+        /// </summary>
+        Popup DropDownPopup { get; }
+
+        /// <summary>
+        /// Gets a value indicating whether control context menu is opened
+        /// </summary>
+        bool IsContextMenuOpened { get; set; }
+
+        /// <summary>
+        /// Gets or sets a value indicating whether drop down is opened
+        /// </summary>
+        bool IsDropDownOpen { get; set; }
+
+        /// <summary>
+        /// Occurs when drop down is opened.
+        /// </summary>
+        event EventHandler DropDownOpened;
+
+        /// <summary>
+        /// Occurs when drop down menu is closed.
+        /// </summary>
+        event EventHandler DropDownClosed;
+    }
+}