From dd1c917de54cc83c3c1131c0a0f5ab50b1f7c61d Mon Sep 17 00:00:00 2001
From: Jasmine Hegman <hegpetz@gmail.com>
Date: Tue, 1 Jan 2019 05:40:44 -0700
Subject: [PATCH] Added functionality to close tabs with middle mouse click
 when close button is enabled.

---
 src/dlangui/widgets/tabs.d | 31 +++++++++++++++++++------------
 1 file changed, 19 insertions(+), 12 deletions(-)

diff --git a/src/dlangui/widgets/tabs.d b/src/dlangui/widgets/tabs.d
index c0d020bd..ecdf4ea3 100644
--- a/src/dlangui/widgets/tabs.d
+++ b/src/dlangui/widgets/tabs.d
@@ -589,20 +589,27 @@ class TabControl : WidgetGroupDefaultDrawing {
     }
 
     protected bool onMouse(Widget source, MouseEvent event) {
-        if (event.action == MouseAction.ButtonDown && event.button == MouseButton.Left) {
-            if (source.compareId("MORE")) {
-                Log.d("tab MORE button pressed");
-                if (handleMorePopupMenu())
+        if (event.action == MouseAction.ButtonDown ) {
+            if (event.button == MouseButton.Left) {
+                if (source.compareId("MORE")) {
+                    Log.d("tab MORE button pressed");
+                    if (handleMorePopupMenu())
+                        return true;
+                    if (moreButtonClick.assigned) {
+                        moreButtonClick(this);
+                    }
                     return true;
-                if (moreButtonClick.assigned) {
-                    moreButtonClick(this);
                 }
-                return true;
-            }
-            string id = source.id;
-            int index = tabIndex(id);
-            if (index >= 0) {
-                selectTab(index, true);
+                string id = source.id;
+                int index = tabIndex(id);
+                if (index >= 0) {
+                    selectTab(index, true);
+                }
+            } else if (event.button == MouseButton.Middle) {
+                bool closeButtonEnabled = (cast(TabItemWidget)source)._enableCloseButton;
+                if ( closeButtonEnabled ) {
+                    tabClose(source.id);
+                }
             }
         }
         return true;