<?php

class Notepad extends GtkWindow
{
    protected $currentFile;
    protected $buffer;
    protected $status;
    protected $context;
    protected $lastid;

    function __construct($fileName = null)
    {
        parent::__construct();
                
        $mainBox  = new GtkVBox();
        $textBuff = new GtkTextBuffer();
        $textView = new GtkTextView($textBuff);
        $statusBar= new GtkStatusBar();

        $mainBox->pack_start($this->buildMenu(), false, false);
        $mainBox->pack_start($textView, true, true);
        $mainBox->pack_start($statusBar, false, false);

        $this->currentFile = $fileName;
        $this->buffer = $textBuff;
        $this->status = $statusBar;

        $this->connect_simple('destroy', array($this, 'quit'));
        $this->set_title('Simple Notepad');
        $this->maximize();
        $this->add($mainBox);
        $this->show_all();

        $this->loadFile();
    }

    function buildMenu()
    {
        $menuBar  = new GtkMenuBar();
        $fileMenu = new GtkMenu();
        $menuName = new GtkMenuItem('_File');
        
        $quit = new GtkImageMenuItem('gtk-quit');
        $quit->connect_simple('activate', array($this, 'quit'));
        $quit->connect_simple('enter_notify_event', 
                                array($this, 'updateStatus'), 1);
        $quit->connect_simple('leave_notify_event', 
                                array($this, 'updateStatus'), 0);
        
        $fileMenu->append($quit);
        $menuName->set_submenu($fileMenu);
        $menuBar->add($menuName);

        return $menuBar;
    }
   
    function loadFile()
    {
        if($this->currentFile != null) {
            $contents = file_get_contents($this->currentFile);
            $this->buffer->set_text($contents);
        }
    }

    function updateStatus($enter)
    {
        if($enter) {
            $id = $this->status->get_context_id("Message");
            $lastMsg = $this->status->push($id, "Quits the Application");
            $this->context = $id;
            $this->lastid = $lastMsg;
        } else {
            $this->status->remove($this->context, $this->lastid);
        }
    }
    
    function quit()
    {
        Gtk::main_quit();
    }

}

new Notepad('simple.phpw');
Gtk::main();

?>