Fix crash when right clicking AUI toolbar while left button is pressed.

Ignore the unrelated mouse events during the item dragging.

This avoids a crash due to m_actionItem being NULL when right clicking an item
while the left mouse button is kept pressed.

See #16327.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@76746 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/aui/auibar.cpp

@@ -2669,6 +2669,9 @@ void wxAuiToolBar::OnLeftUp(wxMouseEvent& evt)
 
 void wxAuiToolBar::OnRightDown(wxMouseEvent& evt)
 {
+    if (HasCapture())
+        return;
+
     wxRect cli_rect(wxPoint(0,0), GetClientSize());
 
     if (m_gripperSizerItem)
@@ -2705,6 +2708,9 @@ void wxAuiToolBar::OnRightDown(wxMouseEvent& evt)
 
 void wxAuiToolBar::OnRightUp(wxMouseEvent& evt)
 {
+    if (HasCapture())
+        return;
+
     wxAuiToolBarItem* hitItem;
     hitItem = FindToolByPosition(evt.GetX(), evt.GetY());
 
@@ -2735,6 +2741,9 @@ void wxAuiToolBar::OnRightUp(wxMouseEvent& evt)
 
 void wxAuiToolBar::OnMiddleDown(wxMouseEvent& evt)
 {
+    if (HasCapture())
+        return;
+
     wxRect cli_rect(wxPoint(0,0), GetClientSize());
 
     if (m_gripperSizerItem)
@@ -2774,6 +2783,9 @@ void wxAuiToolBar::OnMiddleDown(wxMouseEvent& evt)
 
 void wxAuiToolBar::OnMiddleUp(wxMouseEvent& evt)
 {
+    if (HasCapture())
+        return;
+
     wxAuiToolBarItem* hitItem;
     hitItem = FindToolByPosition(evt.GetX(), evt.GetY());