/* -*- Mode: C#; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.1 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/ 
 * 
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License. 
 *
 * The Original Code is Manticore.
 * 
 * The Initial Developer of the Original Code is
 * Silverstone Interactive. Portions created by Silverstone Interactive are
 * Copyright (C) 2001 Silverstone Interactive. 
 *
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU Public License (the "GPL"), in which case the
 * provisions of the GPL are applicable instead of those above.
 * If you wish to allow use of your version of this file only
 * under the terms of the GPL and not to allow others to use your
 * version of this file under the MPL, indicate your decision by
 * deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL.  If you do not delete
 * the provisions above, a recipient may use your version of this
 * file under either the MPL or the GPL.
 *
 * Contributor(s):
 *  Ben Goodger <ben@netscape.com>
 *
 */

namespace Silverstone.Manticore.Browser
{
  using System;
  using System.ComponentModel;
  using System.Drawing;
  using System.Windows.Forms;

  using Silverstone.Manticore.App;
  using Silverstone.Manticore.Toolkit;
  using Silverstone.Manticore.Layout;

  public class BrowserWindow : Form 
  {
    private System.ComponentModel.Container components;

    private BrowserMenuBuilder mMenuBuilder;
    private BrowserToolbarBuilder mToolbarBuilder;

    private WebBrowser mWebBrowser;

    private StatusBar mStatusBar;
    private StatusBarPanel mProgressMeter;
    private StatusBarPanel mStatusPanel;
    protected internal ManticoreApp mApplication;

    public BrowserWindow(ManticoreApp app)
    {
      mApplication = app;

      // Set up UI
      InitializeComponent();

      this.Closed += new EventHandler(OnFormClosed);
    }

    public void OnFormClosed(Object sender, EventArgs e) 
    {
      mApplication.WindowClosed(this);
    }

    public override void Dispose()
    {
      base.Dispose();
      components.Dispose();
    }

    private void InitializeComponent()
    {
      this.components = new System.ComponentModel.Container();

      // XXX read these from a settings file
      this.Width = 640;
      this.Height = 480;
      
      this.Text = "Manticore"; // XXX localize

      mMenuBuilder = new BrowserMenuBuilder("browser\\browser-menu.xml", this);
      mMenuBuilder.Build();

      // Show the resize handle
      this.SizeGripStyle = SizeGripStyle.Auto;

      // Set up the Status Bar
      mStatusBar = new StatusBar();
      
      StatusBarPanel docStatePanel = new StatusBarPanel();
      mStatusPanel = new StatusBarPanel();
      mProgressMeter = new StatusBarPanel();
      StatusBarPanel zonePanel = new StatusBarPanel();

      docStatePanel.Text = "X";
      zonePanel.Text = "Internet Region";
      mStatusPanel.Text = "Document Done";
      mStatusPanel.AutoSize = StatusBarPanelAutoSize.Spring;
      

      mStatusBar.Panels.AddRange(new StatusBarPanel[] {docStatePanel, mStatusPanel, mProgressMeter, zonePanel});
      mStatusBar.ShowPanels = true;
      
      mWebBrowser = new WebBrowser(this);
      this.Controls.Add(mWebBrowser);

      this.Controls.Add(mStatusBar);

      mToolbarBuilder = new BrowserToolbarBuilder("browser\\browser-toolbar.xml", this);
	    mToolbarBuilder.Build();

      // Start Page handler
      this.VisibleChanged += new EventHandler(LoadStartPage);
    }

    private void LoadStartPage(object sender, EventArgs e)
    {
      int startMode = mApplication.Prefs.GetIntPref("browser.homepage.mode");
      switch (startMode) {
      case 0:
        // Don't initialize jack
        break;
      case 1:
        // Load the homepage
        mWebBrowser.GoHome();
        break;
      case 2:
        // Load the last page visited.
        // XXX todo
        break;
      }
    }

    ///////////////////////////////////////////////////////////////////////////
    // Menu Command Handlers
    public void OpenNewBrowser()
    {
      mApplication.OpenNewBrowser();
    }

    public void Open()
    {
      OpenDialog dlg = new OpenDialog();
      if (dlg.ShowDialog() == DialogResult.OK)
        mWebBrowser.LoadURL(dlg.URL, false);
    }

    public void Quit() 
    {
      mApplication.Quit();
    }

    private int previousProgress = 0;
    public void OnProgress(int aProgress, int aProgressMax) 
    {
      if (aProgress > 0 && aProgress > previousProgress) {
        int percentage = (int) (aProgress / aProgressMax);
        String text = percentage + "% complete";
        mProgressMeter.Text = text;
      }
    }

    public void OnTitleChange(String aTitle)
    {
      this.Text = aTitle + " - Manticore";
    }

    public void OnStatusTextChange(String aStatusText)
    {
      mStatusPanel.Text = aStatusText;
    }
  
    public void DoCommand(String s) 
    {
      switch (s) 
      {
        case "file-new-window":
          OpenNewBrowser();
          break;
        case "file-open":
          Open();
          break;
        case "file-exit":
          Quit();
          break;
        case "view-go-back":
          mWebBrowser.GoBack();
          break;
        case "view-go-forward":
          mWebBrowser.GoForward();
          break;
        case "view-go-home":
          mWebBrowser.GoHome();
          break;
        case "view-reload":
          mWebBrowser.RefreshPage();
          break;
        case "view-stop":
          mWebBrowser.Stop();
          break;
        case "view-layout-gecko":
          mWebBrowser.SwitchLayoutEngine("gecko");
          break;
        case "view-layout-ie":
          mWebBrowser.SwitchLayoutEngine("trident");
          break;
        case "help-about":
          AboutDialog aboutDialog = new AboutDialog(this);
          aboutDialog.ShowDialog();
          break;
        case "tools-options":
          PrefsDialog prefsDialog = new PrefsDialog(this);
          prefsDialog.ShowDialog();
          break;
      }
    }
  }

  public class BrowserMenuBuilder : MenuBuilder
  {
    public BrowserMenuBuilder(String aFile, Form aForm) : base(aFile, aForm)
    {
    }

    public override void OnCommand(Object sender, EventArgs e)
    {
      CommandMenuItem item = sender as CommandMenuItem;
      (mForm as BrowserWindow).DoCommand(item.Command);
    }
  }

  public class BrowserToolbarBuilder : ToolbarBuilder
  {
    public BrowserToolbarBuilder(String aFile, Form aForm) : base(aFile, aForm)
    {
    }
    
    public override void OnCommand(Object sender, ToolBarButtonClickEventArgs e)
    {
      CommandButtonItem item = e.Button as CommandButtonItem;
      (mForm as BrowserWindow).DoCommand(item.Command);
    }
  }
}