WebThing.cs

   1 using System;
   2 using System.Collections.Generic;
   3 using System.Reflection;
   4 using System.IO;
   5 using System.Text.RegularExpressions;
   6 using System.Runtime.InteropServices;
   7 using Gtk;
   8 using GtkSharp;
   9 using WebKit;
  10
  11 namespace bytex64.WebThing {
  12     public enum CompassDirection {
  13         N, E, S, W, Interior
  14     }
  15
  16     public class WebThing {
  17         private Gtk.Window _Window;
  18         public Gtk.Window Window {
  19             get { return _Window; }
  20         }
  21         public Gtk.Window w {
  22             get { return _Window; }
  23         }
  24
  25         public ScrolledWindow ScrolledWindow {
  26             get { return Tabs.CurrentPageWidget as ScrolledWindow; }
  27         }
  28         public ScrolledWindow sw {
  29             get { return ScrolledWindow; }
  30         }
  31
  32         public WebView WebView {
  33             get { return (Tabs.CurrentPageWidget as WebThingView).WebView; }
  34         }
  35         public WebView wv {
  36             get { return WebView; }
  37         }
  38
  39         private Gtk.Notebook _Tabs;
  40         public Gtk.Notebook Tabs {
  41             get { return _Tabs; }
  42         }
  43
  44         private Gtk.Table WidgetGrid;
  45         private Gtk.Alignment InteriorOverlay;
  46
  47         public Dictionary<string,WebThingPlugin> Plugins;
  48
  49         [DllImport ("SoupSettings.dll")]
  50         private static extern void soup_settings();
  51
  52         public void Run() {
  53             Application.Init();
  54             Plugins = new Dictionary<string,WebThingPlugin>();
  55
  56             Config.ParseCommandLine();
  57             Config.Load();
  58             //Config.DumpOptions();
  59
  60             soup_settings();
  61
  62             _Window = new Gtk.Window("WebThing");
  63             _Window.SetWmclass("webthing", "WebThing");
  64             _Window.Role = "browser";
  65             _Window.Destroyed += delegate { Quit(); };
  66
  67             WidgetGrid = new Gtk.Table(3, 3, false);
  68             _Window.Add(WidgetGrid);
  69
  70             _Tabs = new Gtk.Notebook();
  71             _Tabs.ShowBorder = false;
  72             _Tabs.SwitchPage += Tabs_SwitchPage;
  73             WidgetGrid.Attach(_Tabs, 1, 2, 1, 2);
  74
  75             InteriorOverlay = new Gtk.Alignment(1, 0, 0, 0);
  76             WidgetGrid.Attach(InteriorOverlay, 1, 2, 1, 2);
  77
  78             _Window.ShowAll();
  79
  80             WebThingView newview = NewWebThingView();
  81
  82             // TODO: Conf.Get("plugins") instead of hard-coded path?
  83             using (TextReader f = new StreamReader("plugins.conf")) {
  84                 string line;
  85                 while ((line = f.ReadLine()) != null) {
  86                     line = line.Trim();
  87                     LoadPlugin(line);
  88                 }
  89             }
  90
  91             WebViewSetupPlugins(newview.WebView);
  92             newview.WebView.GrabFocus();
  93
  94             Application.Run();
  95         }
  96
  97         public void LoadPlugin(string assemblyname) {
  98             Assembly a = Assembly.LoadFile("plugins/" + assemblyname + ".dll");
  99             Type[] types = a.GetTypes();
 100             foreach (Type t in types) {
 101                 if (t.IsSubclassOf(typeof(WebThingPlugin))) {
 102                     WebThingPlugin p = (WebThingPlugin) a.CreateInstance(t.FullName, false, BindingFlags.ExactBinding, null, null, null, null);
 103                     p.Init(this);
 104                     Plugins[t.FullName] = p;
 105                     Console.WriteLine("Successfully loaded {0}", t.FullName);
 106                 }
 107             }
 108         }
 109
 110         public void AttachWidget(Gtk.Widget widget, CompassDirection direction, AttachOptions xoptions, AttachOptions yoptions) {
 111             switch(direction) {
 112             case CompassDirection.N:
 113                 WidgetGrid.Attach(widget, 0, 3, 0, 1, xoptions, yoptions, 0, 0);
 114                 break;
 115             case CompassDirection.E:
 116                 WidgetGrid.Attach(widget, 2, 3, 1, 2, xoptions, yoptions, 0, 0);
 117                 break;
 118             case CompassDirection.S:
 119                 WidgetGrid.Attach(widget, 0, 3, 2, 3, xoptions, yoptions, 0, 0);
 120                 break;
 121             case CompassDirection.W:
 122                 WidgetGrid.Attach(widget, 0, 1, 1, 2, xoptions, yoptions, 0, 0);
 123                 break;
 124             case CompassDirection.Interior:
 125                 InteriorOverlay.Add(widget);
 126                 break;
 127             }
 128         }
 129
 130         public void AttachWidget(Gtk.Widget widget, CompassDirection direction) {
 131             AttachWidget(widget, direction, 0, 0);
 132         }
 133
 134         public WebView NewTab() {
 135             WebThingView newview = NewWebThingView();
 136             WebViewSetupPlugins(newview.WebView);
 137             return newview.WebView;
 138         }
 139
 140         private WebThingView NewWebThingView() {
 141             WebThingView newview = new WebThingView();
 142             Tabs.AppendPage(newview, new Label("Blank"));
 143             newview.WebView.TitleChanged += delegate(object o, TitleChangedArgs e) {
 144                 Tabs.SetTabLabelText((Gtk.Widget) newview, e.Title);
 145                 if (newview == Tabs.CurrentPageWidget)
 146                     _Window.Title = e.Title + " - WebThing";
 147             };
 148             newview.Show();
 149             return newview;
 150         }
 151
 152         private void WebViewSetupPlugins(WebView view) {
 153             foreach (string key in Plugins.Keys) {
 154                 Plugins[key].InitWebView(view);
 155             }
 156         }
 157
 158         public void CloseTab() {
 159             CloseTab(_Tabs.Page);
 160         }
 161
 162         public void CloseTab(int tab) {
 163             if (_Tabs.NPages > 1) {
 164                 try {
 165                     WebThingView view = _Tabs.GetNthPage(tab) as WebThingView;
 166                     _Tabs.RemovePage(tab);
 167                     view.Dispose();
 168                 } catch (ArgumentOutOfRangeException) {
 169                 }
 170             }
 171         }
 172
 173         public string FixUri(string Uri) {
 174             if (!Regex.IsMatch(Uri, @"://")) {
 175                 return String.Format("http://{0}", Uri);
 176             }
 177             return Uri;
 178         }
 179
 180         public void OpenUri(string Uri) {
 181             wv.Open(FixUri(Uri));
 182         }
 183
 184         public void OpenUriTab(string Uri) {
 185             WebView view = NewTab();
 186             view.Open(FixUri(Uri));
 187         }
 188
 189         public void Quit() {
 190             // TODO: Create a way of shutting down plugins
 191             Application.Quit();
 192         }
 193
 194         private void Tabs_SwitchPage(object o, SwitchPageArgs e) {
 195             Gtk.Widget page = _Tabs.GetNthPage((int)e.PageNum);
 196             _Window.Title = _Tabs.GetTabLabelText(page) + " - WebThing";
 197         }
 198     }
 199 }