Tiles/SimpleRootTile.cs

   1 //
   2 // SimpleRootTile.cs
   3 //
   4 // Copyright (C) 2004 Novell, Inc.
   5 //
   6
   7 //
   8 // Permission is hereby granted, free of charge, to any person obtaining a
   9 // copy of this software and associated documentation files (the "Software"),
  10 // to deal in the Software without restriction, including without limitation
  11 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12 // and/or sell copies of the Software, and to permit persons to whom the
  13 // Software is furnished to do so, subject to the following conditions:
  14 //
  15 // The above copyright notice and this permission notice shall be included in
  16 // all 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
  23 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  24 // DEALINGS IN THE SOFTWARE.
  25 //
  26
  27 using System;
  28 using System.Collections;
  29 using System.Diagnostics;
  30
  31 using Beagle.Tile;
  32 using Beagle;
  33
  34 namespace Beagle.Tile {
  35
  36         public class SimpleRootTile : Tile {
  37                 private TileHitCollection hit_collection = new TileHitCollection ();
  38                 string errorString;
  39                 bool offerDaemonRestart;
  40
  41                 public void Start ()
  42                 {
  43                         hit_collection.Clear ();
  44                         Changed ();
  45                 }
  46
  47                 public TileHitCollection HitCollection {
  48                         get { return hit_collection; }
  49                 }
  50
  51                 public bool OfferDaemonRestart {
  52                         get { return offerDaemonRestart; }
  53                         set { offerDaemonRestart = value; }
  54                 }
  55
  56                 public void Add (ICollection hits)
  57                 {
  58                         foreach (Hit hit in hits)
  59                                 Add (hit);
  60                 }
  61
  62                 public void Add (Hit hit)
  63                 {
  64                         HitFlavor flavor = HitToHitFlavor.Get (hit);
  65                         if (flavor == null)
  66                                 return;
  67
  68                         object[] args = new object [1];
  69                         args[0] = hit;
  70                         Tile tile = (Tile) Activator.CreateInstance (flavor.TileType, args);
  71                         tile.Uri = hit.Uri;
  72                         tile.Query = this.Query;
  73
  74                         if (hit_collection.Add (hit, tile))
  75                                 Changed ();
  76
  77                         //Console.WriteLine ("+ {0}", hit.Uri);
  78                 }
  79
  80                 public void Subtract (ICollection uris)
  81                 {
  82                         foreach (Uri uri in uris)
  83                                 Subtract (uri);
  84                 }
  85
  86                 public void Subtract (Uri uri)
  87                 {
  88                         bool changed = false;
  89
  90                         if (hit_collection.Subtract (uri))
  91                                 changed = true;
  92
  93                         if (changed) {
  94                                 Console.WriteLine ("- {0}", uri);
  95                                 Changed ();
  96                         }
  97                 }
  98
  99                 public void Error (string errorString)
 100                 {
 101                         this.errorString = errorString;
 102                         Changed ();
 103                 }
 104
 105                 public void StartDaemon ()
 106                 {
 107                         // If we're running uninstalled (in the source tree), then run
 108                         // the uninstalled daemon.  Otherwise run the installed daemon.
 109
 110                         string bestpath = System.Environment.GetCommandLineArgs () [0];
 111                         string bestdir = System.IO.Path.GetDirectoryName (bestpath);
 112
 113                         string beagled_filename;
 114                         if (bestdir.EndsWith ("lib/beagle")) {
 115                                 Console.WriteLine ("Running installed daemon...");
 116                                 beagled_filename = "beagled"; // Running installed
 117                         } else {
 118                                 Console.WriteLine ("Running uninstalled daemon...");
 119                                 beagled_filename = System.IO.Path.Combine (bestdir, "../beagled/beagled");
 120                         }
 121
 122
 123                         Process daemon = new Process ();
 124                         daemon.StartInfo.FileName  = beagled_filename;
 125                         daemon.StartInfo.UseShellExecute = false;
 126
 127                         try {
 128                                 daemon.Start ();
 129                         } catch (System.ComponentModel.Win32Exception e) {
 130                                 Console.WriteLine ("Unable to start daemon: {0}", e.Message);
 131                         }
 132                 }
 133
 134                 public void SetSource (string querySource)
 135                 {
 136                         hit_collection.SetSource (querySource);
 137                         Changed ();
 138                 }
 139
 140                 override public void Render (TileRenderContext ctx)
 141                 {
 142                         if (errorString != null) {
 143                                 ctx.Write (errorString);
 144                                 if (offerDaemonRestart) {
 145                                         ctx.Write ("<hr noshade>");
 146                                         ctx.Link ("Click to start the Beagle daemon...", new TileActionHandler (StartDaemon));
 147                                         offerDaemonRestart = false;
 148                                 }
 149                                 errorString = null;
 150                                 return;
 151                         }
 152
 153                         if (hit_collection != null)
 154                                 ctx.Tile (hit_collection);
 155                 }
 156         }
 157 }