1 files changed, 142 insertions, 0 deletions
diff --git a/lib/folder_history_box.cpp b/lib/folder_history_box.cpp
new file mode 100644
index 00000000..b395cbf4
--- /dev/null
+++ b/lib/folder_history_box.cpp
@@ -0,0 +1,142 @@
+// **************************************************************************
+// * This file is part of the FreeFileSync project. It is distributed under *
+// * GNU General Public License: http://www.gnu.org/licenses/gpl.html       *
+// * Copyright (C) 2008-2011 ZenJu (zhnmju123 AT gmx.de)                    *
+// **************************************************************************
+
+#include "folder_history_box.h"
+#include <list>
+#include "resolve_path.h"
+
+using namespace zen;
+
+
+FolderHistoryBox::FolderHistoryBox(wxWindow* parent,
+                                   wxWindowID id,
+                                   const wxString& value,
+                                   const wxPoint& pos,
+                                   const wxSize& size,
+                                   int n,
+                                   const wxString choices[],
+                                   long style,
+                                   const wxValidator& validator,
+                                   const wxString& name) :
+    wxComboBox(parent, id, value, pos, size, n, choices, style, validator, name)
+#if wxCHECK_VERSION(2, 9, 1)
+    , dropDownShown(false)
+#endif
+{
+    //#####################################
+    /*##*/ SetMinSize(wxSize(150, -1)); //## workaround yet another wxWidgets bug: default minimum size is much too large for a wxComboBox
+    //#####################################
+
+    //register key event to enable item deletion
+    Connect(wxEVT_KEY_DOWN, wxKeyEventHandler(FolderHistoryBox::OnKeyEvent), NULL, this);
+
+    //refresh history list on mouse click
+    Connect(wxEVT_LEFT_DOWN, wxEventHandler(FolderHistoryBox::OnUpdateList), NULL, this);
+
+    Connect(wxEVT_COMMAND_COMBOBOX_SELECTED, wxCommandEventHandler(FolderHistoryBox::OnSelection), NULL, this);
+
+#if wxCHECK_VERSION(2, 9, 1)
+    Connect(wxEVT_COMMAND_COMBOBOX_DROPDOWN, wxCommandEventHandler(FolderHistoryBox::OnShowDropDown), NULL, this);
+    Connect(wxEVT_COMMAND_COMBOBOX_CLOSEUP, wxCommandEventHandler(FolderHistoryBox::OnHideDropDown), NULL, this);
+#endif
+}
+
+
+#if wxCHECK_VERSION(2, 9, 1)
+void FolderHistoryBox::OnShowDropDown(wxCommandEvent& event)
+{
+    dropDownShown = true;
+    event.Skip();
+}
+
+
+void FolderHistoryBox::OnHideDropDown(wxCommandEvent& event)
+{
+    dropDownShown = false;
+    event.Skip();
+}
+#endif
+
+
+void FolderHistoryBox::update(const wxString& dirname)
+{
+    //it may be a little lame to update the list on each mouse-button click, but it should be working and we dont't have to manipulate wxComboBox internals
+
+    std::list<Zstring> dirList;
+
+    //add some aliases to allow user changing to volume name and back, if possible
+#ifdef FFS_WIN
+    const Zstring activePath = toZ(GetValue());
+    std::vector<Zstring> aliases = getDirectoryAliases(activePath);
+    dirList.insert(dirList.end(), aliases.begin(), aliases.end());
+#endif
+
+    if (sharedHistory_.get())
+    {
+        auto tmp = sharedHistory_->getList();
+        //std::sort(tmp.begin(), tmp.end(), LessFilename());
+
+        if (!dirList.empty() && !tmp.empty())
+            dirList.push_back(FolderHistory::lineSeparator());
+
+        dirList.insert(dirList.end(), tmp.begin(), tmp.end());
+    }
+    //###########################################################################################
+
+    //attention: if the target value is not part of the dropdown list, SetValue() will look for a string that *starts with* this value:
+    //e.g. if the dropdown list contains "222" SetValue("22") will erroneously set and select "222" instead, while "111" would be set correctly!
+    // -> by design on Windows!
+    if (std::find(dirList.begin(), dirList.end(), toZ(dirname)) == dirList.end())
+        dirList.push_front(toZ(dirname));
+
+    Clear();
+    std::for_each(dirList.begin(), dirList.end(), [&](const Zstring& dir) { this->Append(toWx(dir)); });
+    //this->SetSelection(wxNOT_FOUND); //don't select anything
+    this->SetValue(dirname);          //preserve main text!
+}
+
+
+void FolderHistoryBox::OnSelection(wxCommandEvent& event)
+{
+    event.Skip();
+}
+
+
+void FolderHistoryBox::OnKeyEvent(wxKeyEvent& event)
+{
+    const int keyCode = event.GetKeyCode();
+    if (keyCode == WXK_DELETE || keyCode == WXK_NUMPAD_DELETE)
+    {
+        //try to delete the currently selected config history item
+        int pos = this->GetCurrentSelection();
+        if (0 <= pos && pos < static_cast<int>(this->GetCount()) &&
+#if wxCHECK_VERSION(2, 9, 1)
+            dropDownShown)
+#else
+            //what a mess...:
+            (GetValue() != GetString(pos) || //avoid problems when a character shall be deleted instead of list item
+             GetValue() == wxEmptyString)) //exception: always allow removing empty entry
+#endif
+        {
+            //save old (selected) value: deletion seems to have influence on this
+            const wxString currentVal = this->GetValue();
+            //this->SetSelection(wxNOT_FOUND);
+
+            //delete selected row
+            if (sharedHistory_.get())
+                sharedHistory_->delItem(toZ(GetString(pos)));
+            SetString(pos, wxString()); //in contrast to Delete(), this one does not kill the drop-down list and gives a nice visual feedback!
+            //Delete(pos);
+
+            //(re-)set value
+            this->SetValue(currentVal);
+
+            //eat up key event
+            return;
+        }
+    }
+    event.Skip();
+}