#include <recentbrowser.h>

RecentBrowser::RecentBrowser () : listener (NULL) {

    scrollw = Gtk::manage (new Gtk::ScrolledWindow ());
    scrollw->set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);

    Gtk::Frame* frame = Gtk::manage (new Gtk::Frame ("Recent Folders"));
    frame->add (*scrollw);

    pack_start (*frame);
    
    treeView = Gtk::manage (new Gtk::TreeView ());
    scrollw->add (*treeView);
    
    recentModel = Gtk::ListStore::create (recentColumns);
    treeView->set_model (recentModel);
    treeView->set_headers_visible (false);

    Gtk::CellRendererText *crt = Gtk::manage (new Gtk::CellRendererText());
    Gtk::TreeView::Column *col = Gtk::manage (new Gtk::TreeView::Column (""));
    col->pack_start (*crt, true);
    col->add_attribute (crt->property_text (), recentColumns.dir);
    col->set_sizing (Gtk::TREE_VIEW_COLUMN_FIXED);
    crt->set_property ("xalign", 1.0);

    treeView->append_column (*col); 
    treeView->set_tooltip_column (0);
    
    treeView->get_selection()->signal_changed().connect(sigc::mem_fun(*this, &RecentBrowser::selectionChanged));

    show_all ();
}

void RecentBrowser::selectionChanged () {

    Glib::RefPtr<Gtk::TreeSelection> selection = treeView->get_selection();
    Gtk::TreeModel::iterator iter = selection->get_selected();
    if (iter && listener) 
        listener->selectDir (iter->get_value (recentColumns.dir));
}

void RecentBrowser::dirSelected (const Glib::ustring& dirname, const Glib::ustring& openfile) {

    // check if the dirname is already in the list. If yes, remove it.
    Gtk::TreeModel::iterator iter = recentModel->children ().begin();
    while (iter != recentModel->children().end()) {
        if (iter->get_value (recentColumns.dir) == dirname) {
            recentModel->erase (iter);
            break;
        }
        iter++;
    }

    // append dirname to the top of the list
    iter = recentModel->prepend ();
    iter->set_value (recentColumns.dir, dirname);
}