XMLFileDropTarget.h

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#pragma once
 
#include <functional>
#include <wx/dnd.h>
#include <wx/wx.h>
 
namespace EmberForge {

class XMLFileDropTarget : public wxFileDropTarget {
  public:
    using FileDropCallback = std::function<void(const wxString &filePath, bool loadInCurrentScene)>;

    explicit XMLFileDropTarget(FileDropCallback callback) : m_callback(callback) {}

    bool OnDropFiles(wxCoord x, wxCoord y, const wxArrayString &filenames) override {
        // Only accept single files
        if (filenames.GetCount() != 1) {
            wxMessageBox("Please drop only one file at a time", "Multiple Files", wxOK | wxICON_INFORMATION);
            return false;
        }
 
        wxString filePath = filenames[0];
 
        // Check if it's an XML file
        if (!filePath.Lower().EndsWith(".xml")) {
            wxMessageBox("Only XML files are supported for drag and drop", "Invalid File Type", wxOK | wxICON_WARNING);
            return false;
        }
 
        // Check if file exists
        if (!wxFileExists(filePath)) {
            wxMessageBox("The dropped file does not exist", "File Not Found", wxOK | wxICON_ERROR);
            return false;
        }
 
        // Check if Ctrl key is pressed during drop
        // Ctrl pressed = load in current scene, otherwise create new scene
        bool ctrlPressed = wxGetKeyState(WXK_CONTROL);
 
        // Call the callback with the file path and ctrl state
        if (m_callback) {
            m_callback(filePath, ctrlPressed);
            return true;
        }
 
        return false;
    }
 
  private:
    FileDropCallback m_callback;
};
 
} // namespace EmberForge