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 int _CurrentTab;
  45         public int CurrentTab {
  46             get { return _CurrentTab; }
  47             set {
  48                 if (value >= _Tabs.Count)
  49                     _CurrentTab = _Tabs.Count - 1;
  50                 else if (value < 0)
  51                     _CurrentTab = 0;
  52                 else
  53                     _CurrentTab = value;
  54
  55                 _WebView.Hide();
  56                 _ScrolledWindow.Remove(_WebView);
  57                 _WebView = _Tabs[_CurrentTab];
  58                 _ScrolledWindow.Add(_WebView);
  59                 foreach (WebView view in Tabs)
  60                     Console.WriteLine(view.MainFrame.Uri);
  61                 _WebView.Show();
  62                 _WebView.GrabFocus();
  63             }
  64         }
  65         */
  66
  67         private Gtk.Table WidgetGrid;
  68         private Gtk.Alignment InteriorOverlay;
  69
  70         public Dictionary<string,WebThingPlugin> Plugins;
  71         public Dictionary<string,string> Options;
  72         public string[] Arguments;
  73
  74         [DllImport ("SoupSettings.dll")]
  75         private static extern void soup_settings();
  76
  77         public void Run() {
  78             Application.Init();
  79             Plugins = new Dictionary<string,WebThingPlugin>();
  80             ParseArgs();
  81
  82             soup_settings();
  83
  84             _Window = new Gtk.Window("WebThing");
  85             _Window.SetWmclass("webthing", "WebThing");
  86             _Window.Role = "browser";
  87             _Window.Destroyed += delegate { Quit(); };
  88
  89             WidgetGrid = new Gtk.Table(3, 3, false);
  90             _Window.Add(WidgetGrid);
  91
  92             _Tabs = new Gtk.Notebook();
  93             _Tabs.SwitchPage += Tabs_SwitchPage;
  94             WidgetGrid.Attach(_Tabs, 1, 2, 1, 2);
  95
  96             InteriorOverlay = new Gtk.Alignment(1, 0, 0, 0);
  97             WidgetGrid.Attach(InteriorOverlay, 1, 2, 1, 2);
  98
  99             _Window.ShowAll();
 100
 101             WebThingView newview = NewWebThingView();
 102
 103             // TODO: Conf.Get("plugins") instead of hard-coded path?
 104             using (TextReader f = new StreamReader("plugins.conf")) {
 105                 string line;
 106                 while ((line = f.ReadLine()) != null) {
 107                     line = line.Trim();
 108                     LoadPlugin(line);
 109                 }
 110             }
 111
 112             WebViewSetupPlugins(newview.WebView);
 113             newview.WebView.GrabFocus();
 114
 115             Application.Run();
 116         }
 117
 118         protected void ParseArgs() {
 119             Options = new Dictionary<string,string>();
 120             Queue<string> q = new Queue<string>();
 121             foreach (string s in System.Environment.GetCommandLineArgs()) {
 122                 q.Enqueue(s);
 123             }
 124             q.Dequeue();   // Remove self argument
 125
 126             Regex SimpleOpt = new Regex(@"^-([a-zA-Z0-9]+)$");
 127             Regex LongOpt   = new Regex(@"^--([\w-]+)$");
 128             string OptLast = null;
 129             List<string> args = new List<string>();
 130
 131             while (q.Count > 0) {
 132                 string opt = q.Dequeue();
 133                 Match m;
 134
 135                 m = SimpleOpt.Match(opt);
 136                 if (m.Success) {
 137                     string s = m.Groups[1].Value;
 138                     if (s.Length > 1) {
 139                         foreach (char c in s) {
 140                             Options[c.ToString()] = "";
 141                         }
 142                         OptLast = null;
 143                     } else {
 144                         Options[s] = "";
 145                         OptLast = s;
 146                     }
 147                     continue;
 148                 }
 149
 150                 m = LongOpt.Match(opt);
 151                 if (m.Success) {
 152                     string s = m.Groups[1].Value;
 153                     Options[s] = "";
 154                     OptLast = s;
 155                     continue;
 156                 }
 157
 158                 // else
 159
 160                 if (OptLast != null) {
 161                     Options[OptLast] = opt;
 162                     OptLast = null;
 163                 } else {
 164                     args.Add(opt);
 165                 }
 166             }
 167             Arguments = args.ToArray();
 168
 169             /*
 170             Console.WriteLine("Options:");
 171             foreach (string key in Options.Keys)
 172                 Console.WriteLine("   {0}\t{1}", key, Options[key]);
 173
 174             Console.WriteLine("Arguments: {0}", String.Join(" ", Arguments));
 175             */
 176         }
 177
 178         public void LoadPlugin(string assemblyname) {
 179             Assembly a = Assembly.LoadFile("plugins/" + assemblyname + ".dll");
 180             Type[] types = a.GetTypes();
 181             foreach (Type t in types) {
 182                 if (t.IsSubclassOf(typeof(WebThingPlugin))) {
 183                     WebThingPlugin p = (WebThingPlugin) a.CreateInstance(t.FullName, false, BindingFlags.ExactBinding, null, null, null, null);
 184                     p.Init(this);
 185                     Plugins[t.FullName] = p;
 186                     Console.WriteLine("Successfully loaded {0}", t.FullName);
 187                 }
 188             }
 189         }
 190
 191         public void AttachWidget(Gtk.Widget widget, CompassDirection direction, AttachOptions xoptions, AttachOptions yoptions) {
 192             switch(direction) {
 193             case CompassDirection.N:
 194                 WidgetGrid.Attach(widget, 0, 3, 0, 1, xoptions, yoptions, 0, 0);
 195                 break;
 196             case CompassDirection.E:
 197                 WidgetGrid.Attach(widget, 2, 3, 1, 2, xoptions, yoptions, 0, 0);
 198                 break;
 199             case CompassDirection.S:
 200                 WidgetGrid.Attach(widget, 0, 3, 2, 3, xoptions, yoptions, 0, 0);
 201                 break;
 202             case CompassDirection.W:
 203                 WidgetGrid.Attach(widget, 0, 1, 1, 2, xoptions, yoptions, 0, 0);
 204                 break;
 205             case CompassDirection.Interior:
 206                 InteriorOverlay.Add(widget);
 207                 break;
 208             }
 209         }
 210
 211         public void AttachWidget(Gtk.Widget widget, CompassDirection direction) {
 212             AttachWidget(widget, direction, 0, 0);
 213         }
 214
 215         public WebView NewTab() {
 216             WebThingView newview = NewWebThingView();
 217             WebViewSetupPlugins(newview.WebView);
 218             return newview.WebView;
 219         }
 220
 221         private WebThingView NewWebThingView() {
 222             WebThingView newview = new WebThingView();
 223             Tabs.AppendPage(newview, new Label("Blank"));
 224             newview.WebView.TitleChanged += delegate(object o, TitleChangedArgs e) {
 225                 Tabs.SetTabLabelText((Gtk.Widget) newview, e.Title);
 226                 if (newview == Tabs.CurrentPageWidget)
 227                     _Window.Title = e.Title + " - WebThing";
 228             };
 229             newview.Show();
 230             return newview;
 231         }
 232
 233         private void WebViewSetupPlugins(WebView view) {
 234             foreach (string key in Plugins.Keys) {
 235                 Plugins[key].InitWebView(view);
 236             }
 237         }
 238
 239         public void CloseTab() {
 240             CloseTab(_Tabs.Page);
 241         }
 242
 243         public void CloseTab(int tab) {
 244             if (_Tabs.NPages > 1) {
 245                 try {
 246                     WebThingView view = _Tabs.GetNthPage(tab) as WebThingView;
 247                     _Tabs.RemovePage(tab);
 248                     view.Dispose();
 249                 } catch (ArgumentOutOfRangeException) {
 250                 }
 251             }
 252         }
 253
 254         public string FixUri(string Uri) {
 255             if (!Regex.IsMatch(Uri, @"://")) {
 256                 return String.Format("http://{0}", Uri);
 257             }
 258             return Uri;
 259         }
 260
 261         public void OpenUri(string Uri) {
 262             wv.Open(FixUri(Uri));
 263         }
 264
 265         public void OpenUriTab(string Uri) {
 266             WebView view = NewTab();
 267             view.Open(FixUri(Uri));
 268         }
 269
 270         public void Quit() {
 271             // TODO: Create a way of shutting down plugins
 272             Application.Quit();
 273         }
 274
 275         private void Tabs_SwitchPage(object o, SwitchPageArgs e) {
 276             Gtk.Widget page = _Tabs.GetNthPage((int)e.PageNum);
 277             _Window.Title = _Tabs.GetTabLabelText(page) + " - WebThing";
 278         }
 279     }
 280 }