From b293119a9335924c0ee2911b7e6fadb1c1666ef7 Mon Sep 17 00:00:00 2001
From: Kevin Ollivier <kevino@theolliviers.com>
Date: Sun, 22 Apr 2007 00:18:10 +0000
Subject: [PATCH] Backport of key handling and selection fixes.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@45575 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/mac/carbon/listctrl_mac.cpp | 44 ++++++++++++++++++++++++++++++---
 1 file changed, 41 insertions(+), 3 deletions(-)

diff --git a/src/mac/carbon/listctrl_mac.cpp b/src/mac/carbon/listctrl_mac.cpp
index 3b4941dc08..4e80407df1 100644
--- a/src/mac/carbon/listctrl_mac.cpp
+++ b/src/mac/carbon/listctrl_mac.cpp
@@ -654,6 +654,8 @@ void wxListCtrl::FireMouseEvent(wxEventType eventType, wxPoint position)
 
 void wxListCtrl::OnChar(wxKeyEvent& event)
 {
+
+    
     if (m_dbImpl)
     {
         wxListEvent le( wxEVT_COMMAND_LIST_KEY_DOWN, GetId() );
@@ -661,6 +663,35 @@ void wxListCtrl::OnChar(wxKeyEvent& event)
         le.m_code = event.GetKeyCode();
         le.m_itemIndex = -1;
         
+        if (m_current == -1)
+        {
+            // if m_current isn't set, check if there's been a selection
+            // made before continuing
+            m_current = GetNextItem(-1, wxLIST_NEXT_BELOW, wxLIST_STATE_SELECTED);
+        }
+        
+        // We need to determine m_current ourselves when navigation keys
+        // are used. Note that PAGEUP and PAGEDOWN do not alter the current
+        // item on native Mac ListCtrl, so we only handle up and down keys.
+        switch ( event.GetKeyCode() )
+        {
+            case WXK_UP:
+                if ( m_current > 0 )
+                    m_current -= 1;
+                else
+                    m_current = 0;
+                    
+                break;
+
+            case WXK_DOWN:
+                if ( m_current < GetItemCount() - 1 )
+                    m_current += 1;
+                else
+                    m_current = GetItemCount() - 1;
+                    
+                break;
+        }
+
         if (m_current != -1)
         {
             le.m_itemIndex = m_current;
@@ -1174,7 +1205,7 @@ bool wxListCtrl::SetItemState(long item, long state, long stateMask)
     if (m_dbImpl)
     {
         DataBrowserSetOption option = kDataBrowserItemsAdd;
-        if ( stateMask == wxLIST_STATE_SELECTED && state == 0 )
+        if ( (stateMask & wxLIST_STATE_SELECTED) && state == 0 )
             option = kDataBrowserItemsRemove;
 
         if (item == -1)
@@ -1202,8 +1233,15 @@ bool wxListCtrl::SetItemState(long item, long state, long stateMask)
             if ( HasFlag(wxLC_VIRTUAL) )
             {
                 long itemID = item+1;
+                bool isSelected = IsDataBrowserItemSelected(m_dbImpl->GetControlRef(), (DataBrowserItemID)itemID );
+                bool isSelectedState = (state == wxLIST_STATE_SELECTED);
+
+                // toggle the selection state if wxListInfo state and actual state don't match.
+                if ( (stateMask & wxLIST_STATE_SELECTED) && isSelected != isSelectedState )
+                {
                 SetDataBrowserSelectedItems(m_dbImpl->GetControlRef(), 1, (DataBrowserItemID*)&itemID, option);
             }
+            }
             else
             {
                 wxListItem info;
@@ -1578,8 +1616,8 @@ long wxListCtrl::GetNextItem(long item, int geom, int state) const
                     return line;
             }
         }
-        
-        if ( geom == wxLIST_NEXT_ALL || geom == wxLIST_NEXT_ABOVE )
+
+        if ( geom == wxLIST_NEXT_ABOVE )
         {
             int item2 = item;
             if ( item2 == -1 )