using System;
using Gtk;
using Glade;
using Gecko;

// 2007, Igor Guerrero Fonseca
// A simple Gecko(Mozilla) browser
// using the Gtk# toolkit and Glade#(XML GUI for Gnome) tool
// and Gecko#(Mozilla C# binding)
// TODO: There's a lot of things that can be done in this program but,
// I think that for a quick hack is good and stable.

namespace Monobrowser {
    class Monobrowser {
        // Attributes added by glade
        [Widget] Window mainWindow; // GTK widgets in a Glade attribute
        [Widget] Button back;
        [Widget] Button forward;
        [Widget] Button home;
        [Widget] Button refresh;
        [Widget] Statusbar status;
        [Widget] ProgressBar progress;
        [Widget] Entry url;
        [Widget] Button ok;
        [Widget] VBox webControlArea; // Area where we going to add the webcontrol(mozilla)

        WebControl web;

        static void Main(string[] args) {
            new Monobrowser();
        }
        public Monobrowser() {
            Application.Init(); // GTK entry point

            Glade.XML gxml= new Glade.XML("gui.glade", "mainWindow"); // load the XML file
            string mozEnv = System.Environment.GetEnvironmentVariable("GECKOSHILLA_BASEPATH");

            if(mozEnv != null && mozEnv.Length != 0) // Windows only
                Gecko.WebControl.CompPath = mozEnv;
            gxml.Autoconnect(this); // Adding the Glade interface to this GTK application
            web = new WebControl("/tmp/moztest/", "Mozilla new Browser in GTK#");
            // Events
            web.LinkMsg += new EventHandler(OnWebLinkMsg);
            web.Progress += new ProgressHandler(OnWebProgress);
            web.ProgressAll += new ProgressAllHandler(OnWebProgressAll);
            web.LocChange += new EventHandler(OnWebLocChange);
            web.StatusChange += new StatusChangeHandler(OnWebStatusChange);
            web.TitleChange += new EventHandler(OnWebTitleChange);
            web.NetStop += new EventHandler(OnWebNetStop);
            LoadAddress();
            status.Push(1, "Ready");
            
            web.Show();
            webControlArea.Add(web);
            mainWindow.DeleteEvent += delegate { Application.Quit(); }; // Showing a delegate method
            mainWindow.ShowAll();

            Application.Run(); // The app loop begin
        }

        private void LoadAddress(string address) {
            web.LoadUrl(address);
        }
        private void LoadAddress() { // Overloaded method
            web.LoadUrl("http://www.google.com/");
        }
        private void UpdateLocation() {
            url.Text = web.Location;
            status.Pop(1);
            status.Push(1, web.LinkMessage);
        }
        // Web object handlers
        private void OnWebLinkMsg(object o, EventArgs args) { // Add a status of the link
            status.Pop(1);
            status.Push(1, web.LinkMessage);
        }
        private void OnWebProgress(object o, ProgressArgs args) { // Increse the progressbar
            if(progress.Fraction >= 1.00)
                progress.Fraction = 0.00;
            else
                progress.Fraction += 0.05;
        }
        private void OnWebProgressAll(object o, ProgressAllArgs args) {
            if(progress.Fraction >= 1.00)
                progress.Fraction = 0.00;
            else
                progress.Fraction += 0.05;
        }
        private void OnWebLocChange(object o, EventArgs args) {
            UpdateLocation();
        }
        private void OnWebStatusChange(object o, StatusChangeArgs args) {
            UpdateLocation();
        }
        private void OnWebTitleChange(object o, EventArgs args) {
            mainWindow.Title = "Gtk Mono Browser :: " + web.Title;
        }
        private void OnWebNetStop(object o, EventArgs args) { // The webcontrol stop loading a page
            progress.Fraction = 1.00;
        }
        // Events in glade file
        private void OnBackClicked(object o, EventArgs args) {
            web.GoBack();
            UpdateLocation();
        }
        private void OnForwardClicked(object o, EventArgs args) {
            web.GoForward();
            UpdateLocation();
        }
        private void OnOkClicked(object o, EventArgs args) {
            LoadAddress(url.Text.Trim());
            UpdateLocation();
        }
        private void OnHomeClicked(object o, EventArgs args) {
            LoadAddress();
            UpdateLocation();
        }
        private void OnRefreshClicked(object o, EventArgs args) {
            web.Reload((int)Gecko.ReloadFlags.Reloadnormal);
            UpdateLocation();
        }
        private void OnEntryActivate(object o, EventArgs args) {
            OnOkClicked(o, args);
            UpdateLocation();
        }
        private void OnStopClicked(object o, EventArgs args) {
            web.StopLoad();
            UpdateLocation();
        }
    }
}