Renderers/HitRendererHtml.cs

   1 //
   2 // HtmlRenderer.cs
   3 //
   4 // Copyright (C) 2004 Novell, Inc.
   5 //
   6
   7 //
   8 // Permission is hereby granted, free of charge, to any person obtaining a copy
   9 // of this software and associated documentation files (the "Software"), to deal
  10 // in the Software without restriction, including without limitation the rights
  11 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12 // copies of the Software, and to permit persons to whom the Software is
  13 // furnished to do so, subject to the following conditions:
  14 //
  15 // The above copyright notice and this permission notice shall be included in all
  16 // copies or substantial portions of the Software.
  17 //
  18 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  21 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  24 // SOFTWARE.
  25 //
  26
  27
  28 using System;
  29 using System.Collections;
  30 using System.Diagnostics;
  31 using System.IO;
  32 using System.Reflection;
  33 using System.Net;
  34
  35 using Gtk;
  36
  37 using BU = Beagle.Util;
  38
  39 namespace Beagle {
  40
  41         public class HitRendererHtml : HitRenderer {
  42
  43                 private Gtk.HTML html = new Gtk.HTML ();
  44                 private Hashtable tiles = new Hashtable ();
  45
  46                 public HitRendererHtml ()
  47                 {
  48                         this.html.LinkClicked += new LinkClickedHandler (LinkClicked);
  49                         this.html.UrlRequested += new UrlRequestedHandler (UrlRequested);
  50                 }
  51
  52                 ////////////////////////////////////
  53
  54                 private Tile HitToTile (Hit hit)
  55                 {
  56                         Tile t = null;
  57
  58                         // FIXME: We don't want to allow heterogenous containers.
  59
  60                         switch (hit.Type) {
  61
  62                         case "Contact":
  63                                 t = new Tile ("contact.html", hit);
  64                                 break;
  65
  66                         case "File":
  67                                 t = new Tile ("file-generic.html", hit);
  68                                 break;
  69
  70                         case "IMLog":
  71                                 t = new Tile ("im-log.html", hit);
  72                                 break;
  73
  74                         case "MailMessage":
  75                                 string icon = "mail.png";
  76                                 if (hit ["_IsAnswered"] != null)
  77                                         icon = "mail-replied.png";
  78                                 else if (hit ["_IsSeen"] != null)
  79                                         icon = "mail-read.png";
  80                                 hit ["mail:Icon"] = icon;
  81
  82                                 if (hit ["_IsSent"] != null)
  83                                         t = new Tile ("email-sent.html", hit);
  84                                 else
  85                                         t = new Tile ("email.html", hit);
  86                                 break;
  87
  88                         case "WebHistory":
  89                                 t = new Tile ("web-history.html", hit);
  90                                 break;
  91
  92                         case "WebLink":
  93                                 if (hit.Source == "Google")
  94                                         t = new Tile ("google.html", hit);
  95                                 break;
  96                         }
  97
  98                         return t;
  99                 }
 100
 101                 protected override bool ProcessHit (Hit hit)
 102                 {
 103                         Tile tile = HitToTile (hit);
 104                         if (tile == null)
 105                                 return false;
 106
 107                         tiles [hit] = tile;
 108                         return true;
 109                 }
 110
 111                 protected override void ProcessClear ()
 112                 {
 113                         tiles.Clear ();
 114                 }
 115
 116                 ////////////////////////////////////
 117
 118                 public override Gtk.Widget Widget {
 119                         get { return html; }
 120                 }
 121
 122                 protected override void DoRefresh ()
 123                 {
 124                         Gtk.HTMLStream stream = html.Begin ();
 125                         stream.Write ("<html><body>");
 126                         if (DisplayedCount > 0) {
 127                                 // FIXME: layout in a table, or something
 128                                 for (int i = FirstDisplayed; i <= LastDisplayed; ++i) {
 129                                         Hit hit = (Hit) Hits [i];
 130                                         Tile t = (Tile) tiles [hit];
 131                                         stream.Write (t.Html);
 132                                 }
 133                         }
 134                         stream.Write ("</body></html>");
 135                 }
 136
 137                 ///////////////////////////////////
 138
 139                 //
 140                 // Provides data for urls requested (images).  Things prefixed
 141                 // with `internal:' we pull for one of the embedded streams
 142                 //
 143                 private void UrlRequested (object o, UrlRequestedArgs args)
 144                 {
 145                         Stream s = DataBarn.GetStream (args.Url);
 146                         if (s == null) {
 147                                 Console.WriteLine ("Could not obtain image '{0}'", args.Url);
 148                                 return;
 149                         }
 150
 151                         byte [] buffer = new byte [8192];
 152                         int n;
 153                         while ( (n = s.Read (buffer, 0, 8192)) != 0)
 154                                 args.Handle.Write (buffer, n);
 155                 }
 156
 157                 private void LinkClicked (object o, LinkClickedArgs args)
 158                 {
 159                         String command = null, arguments = null;
 160
 161                         if (args.Url.StartsWith ("exec:")) {
 162                                 command = args.Url.Substring ("exec:".Length);
 163                                 int i = command.IndexOf (' ');
 164                                 if (i != -1) {
 165                                         arguments = command.Substring (i+1);
 166                                         command = command.Substring (0, i);
 167                                 }
 168                         } else if (args.Url.StartsWith ("http")) {
 169                                 command = "epiphany";
 170                                 arguments = args.Url;
 171                         } else if (args.Url.StartsWith ("email")) {
 172                                 command = "evolution-1.5";
 173                                 arguments = args.Url;
 174                         } else if (args.Url.StartsWith ("mailto:")) {
 175                                 command = "evolution-1.5";
 176                                 arguments = args.Url;
 177                         } else if (args.Url.StartsWith ("file://")) {
 178                                 // Hacky: we extract the mime type from inside of
 179                                 // the file Url.
 180                                 arguments = args.Url.Substring ("file://".Length);
 181                                 int i = arguments.IndexOf (' ');
 182                                 String mimeType;
 183                                 if (i == -1) {
 184                                         mimeType = BU.GnomeIconLookup.GetMimeType (arguments);
 185                                 } else {
 186                                         mimeType = arguments.Substring (i+1);
 187                                         arguments = arguments.Substring (0, i);
 188                                 }
 189
 190                                 // Try to open w/ the default handler
 191                                 BU.GnomeVFSMimeApplication app;
 192                                 app = BU.GnomeIconLookup.GetDefaultAction (mimeType);
 193                                 command = app.command;
 194                         }
 195
 196                         Console.WriteLine ("Command=[{0}]   Args=[{1}]", command, arguments);
 197
 198                         if (command != null) {
 199                                 Process p = new Process ();
 200                                 p.StartInfo.UseShellExecute = false;
 201                                 p.StartInfo.FileName = command;
 202                                 if (arguments != null)
 203                                         p.StartInfo.Arguments = arguments;
 204                                 try {
 205                                         p.Start ();
 206                                 } catch { }
 207                                 return;
 208                         }
 209                 }
 210         }
 211 }