1 files changed, 219 insertions, 0 deletions
diff --git a/shared/drag_n_drop.cpp b/shared/drag_n_drop.cpp
new file mode 100644
index 00000000..c4fc98f6
--- /dev/null
+++ b/shared/drag_n_drop.cpp
@@ -0,0 +1,219 @@
+// **************************************************************************
+// * 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) 2008-2010 ZenJu (zhnmju123 AT gmx.de)                    *
+// **************************************************************************
+//
+#include "drag_n_drop.h"
+#include <wx/dnd.h>
+#include <wx/window.h>
+#include <wx/combobox.h>
+#include <wx/textctrl.h>
+#include <wx/filepicker.h>
+#include <wx/filename.h>
+#include "file_handling.h"
+#include "string_conv.h"
+#include "check_exist.h"
+
+
+//define new event type
+const wxEventType FFS_DROP_FILE_EVENT = wxNewEventType();
+
+typedef void (wxEvtHandler::*FFSFileDropEventFunction)(FFSFileDropEvent&);
+
+#define FFSFileDropEventHandler(func) \
+    (wxObjectEventFunction)(wxEventFunction)wxStaticCastEvent(FFSFileDropEventFunction, &func)
+
+class FFSFileDropEvent : public wxCommandEvent
+{
+public:
+    FFSFileDropEvent(const std::vector<wxString>& filesDropped, const wxWindow* dropWindow) :
+        wxCommandEvent(FFS_DROP_FILE_EVENT),
+        filesDropped_(filesDropped),
+        dropWindow_(dropWindow) {}
+
+    virtual wxEvent* Clone() const
+    {
+        return new FFSFileDropEvent(filesDropped_, dropWindow_);
+    }
+
+    const std::vector<wxString> filesDropped_;
+    const wxWindow* dropWindow_;
+};
+
+//##############################################################################################################
+
+
+class WindowDropTarget : public wxFileDropTarget
+{
+public:
+    WindowDropTarget(wxWindow* dropWindow) :
+        dropWindow_(dropWindow) {}
+
+    virtual bool OnDropFiles(wxCoord x, wxCoord y, const wxArrayString& fileArray)
+    {
+        std::vector<wxString> filenames;
+        for (size_t i = 0; i < fileArray.GetCount(); ++i)
+            filenames.push_back(fileArray[i]);
+
+        if (!filenames.empty())
+        {
+            //create a custom event on drop window: execute event after file dropping is completed! (e.g. after mouse is released)
+            FFSFileDropEvent evt(filenames, dropWindow_);
+            dropWindow_->GetEventHandler()->AddPendingEvent(evt);
+        }
+        return false;
+    }
+
+private:
+    wxWindow* dropWindow_;
+};
+
+
+
+//##############################################################################################################
+
+using ffs3::DragDropOnMainDlg;
+
+DragDropOnMainDlg::DragDropOnMainDlg(wxWindow*        dropWindow1,
+                                     wxWindow*        dropWindow2,
+                                     wxDirPickerCtrl* dirPicker,
+                                     wxComboBox*      dirName) :
+    dropWindow1_(dropWindow1),
+    dropWindow2_(dropWindow2),
+    dirPicker_(dirPicker),
+    dirName_(dirName)
+{
+    //prepare drag & drop
+    dropWindow1->SetDropTarget(new WindowDropTarget(dropWindow1)); //takes ownership
+    dropWindow2->SetDropTarget(new WindowDropTarget(dropWindow2)); //takes ownership
+
+    //redirect drag & drop event back to this class
+    dropWindow1->Connect(FFS_DROP_FILE_EVENT, FFSFileDropEventHandler(DragDropOnMainDlg::OnFilesDropped), NULL, this);
+    dropWindow2->Connect(FFS_DROP_FILE_EVENT, FFSFileDropEventHandler(DragDropOnMainDlg::OnFilesDropped), NULL, this);
+
+    //keep dirPicker and dirName synchronous
+    dirName->  Connect( wxEVT_COMMAND_TEXT_UPDATED,      wxCommandEventHandler(      DragDropOnMainDlg::OnWriteDirManually), NULL, this );
+    dirPicker->Connect( wxEVT_COMMAND_DIRPICKER_CHANGED, wxFileDirPickerEventHandler(DragDropOnMainDlg::OnDirSelected),      NULL, this );
+}
+
+
+void DragDropOnMainDlg::OnFilesDropped(FFSFileDropEvent& event)
+{
+    if (event.filesDropped_.empty())
+        return;
+
+    if (    this->dropWindow1_ == event.dropWindow_ || //file may be dropped on window 1 or 2
+            this->dropWindow2_ == event.dropWindow_)
+    {
+        if (AcceptDrop(event.filesDropped_))
+        {
+            wxString fileName = event.filesDropped_[0];
+            if (wxDirExists(fileName))
+            {
+                dirName_->SetSelection(wxNOT_FOUND);
+                dirName_->SetValue(fileName);
+                dirPicker_->SetPath(fileName);
+            }
+            else
+            {
+                fileName = wxFileName(fileName).GetPath();
+                if (wxDirExists(fileName))
+                {
+                    dirName_->SetSelection(wxNOT_FOUND);
+                    dirName_->SetValue(fileName);
+                    dirPicker_->SetPath(fileName);
+                }
+            }
+        }
+    }
+}
+
+
+void DragDropOnMainDlg::OnWriteDirManually(wxCommandEvent& event)
+{
+    const Zstring newDir = getFormattedDirectoryName(wxToZ(event.GetString()));
+
+    if (util::dirExists(newDir, 100) == util::EXISTING_TRUE) //potentially slow network access: wait 100 ms at most
+        dirPicker_->SetPath(zToWx(newDir));
+
+    event.Skip();
+}
+
+
+void DragDropOnMainDlg::OnDirSelected(wxFileDirPickerEvent& event)
+{
+    const wxString newPath = event.GetPath();
+    dirName_->SetSelection(wxNOT_FOUND);
+    dirName_->SetValue(newPath);
+
+    event.Skip();
+}
+
+//##############################################################################################################
+
+
+using ffs3::DragDropOnDlg;
+
+DragDropOnDlg::DragDropOnDlg(wxWindow*        dropWindow,
+                             wxDirPickerCtrl* dirPicker,
+                             wxTextCtrl*      dirName) :
+    dropWindow_(dropWindow),
+    dirPicker_(dirPicker),
+    dirName_(dirName)
+{
+    //prepare drag & drop
+    dropWindow->SetDropTarget(new WindowDropTarget(dropWindow)); //takes ownership
+
+    //redirect drag & drop event back to this class
+    dropWindow->Connect(FFS_DROP_FILE_EVENT, FFSFileDropEventHandler(DragDropOnDlg::OnFilesDropped), NULL, this);
+
+    //keep dirPicker and dirName synchronous
+    dirName->Connect( wxEVT_COMMAND_TEXT_UPDATED, wxCommandEventHandler( DragDropOnDlg::OnWriteDirManually ), NULL, this );
+    dirPicker->Connect( wxEVT_COMMAND_DIRPICKER_CHANGED, wxFileDirPickerEventHandler( DragDropOnDlg::OnDirSelected ), NULL, this );
+}
+
+
+void DragDropOnDlg::OnFilesDropped(FFSFileDropEvent& event)
+{
+    if (event.filesDropped_.empty())
+        return;
+
+    if (this->dropWindow_ == event.dropWindow_)
+    {
+        wxString fileName = event.filesDropped_[0];
+        if (wxDirExists(fileName))
+        {
+            dirName_->SetValue(fileName);
+            dirPicker_->SetPath(fileName);
+        }
+        else
+        {
+            fileName = wxFileName(fileName).GetPath();
+            if (wxDirExists(fileName))
+            {
+                dirName_->SetValue(fileName);
+                dirPicker_->SetPath(fileName);
+            }
+        }
+    }
+}
+
+
+void DragDropOnDlg::OnWriteDirManually(wxCommandEvent& event)
+{
+    const Zstring newDir = ffs3::getFormattedDirectoryName(wxToZ(event.GetString()));
+    if (util::dirExists(newDir, 100) == util::EXISTING_TRUE) //potentially slow network access: wait 100 ms at most
+        dirPicker_->SetPath(zToWx(newDir));
+
+    event.Skip();
+}
+
+
+void DragDropOnDlg::OnDirSelected(wxFileDirPickerEvent& event)
+{
+    const wxString newPath = event.GetPath();
+    dirName_->SetValue(newPath);
+
+    event.Skip();
+}