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[radegast/radegast.git] / Radegast / Core / Commands / FollowCommand.cs
1 // 
2 // Radegast Metaverse Client
3 // Copyright (c) 2009-2014, Radegast Development Team
4 // All rights reserved.
5 // 
6 // Redistribution and use in source and binary forms, with or without
7 // modification, are permitted provided that the following conditions are met:
8 // 
9 //     * Redistributions of source code must retain the above copyright notice,
10 //       this list of conditions and the following disclaimer.
11 //     * Redistributions in binary form must reproduce the above copyright
12 //       notice, this list of conditions and the following disclaimer in the
13 //       documentation and/or other materials provided with the distribution.
14 //     * Neither the name of the application "Radegast", nor the names of its
15 //       contributors may be used to endorse or promote products derived from
16 //       this software without specific prior written permission.
17 // 
18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
22 // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
24 // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
25 // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
26 // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 //
29 // $Id$
30 //
31 using System;
32 using System.Collections.Generic;
33 using System.Text;
34 using System.Text.RegularExpressions;
35 using System.Windows.Forms;
36
37 using OpenMetaverse;
38
39 namespace Radegast.Commands
40 {
41     public class FollowCommand : RadegastCommand
42     {
43         TabsConsole TC { get { return Instance.TabConsole; } }
44         ChatConsole Chat;
45
46         public FollowCommand(RadegastInstance instance)
47             : base(instance)
48         {
49             Name = "follow";
50             Description = "Follows a person";
51             Usage = "follow (person name|stop)";
52
53             Chat = (ChatConsole)TC.Tabs["chat"].Control;
54         }
55
56         public override void Dispose()
57         {
58             Chat = null;
59             base.Dispose();
60         }
61
62         public override void Execute(string name, string[] cmdArgs, ConsoleWriteLine WriteLine)
63         {
64             if (Chat.InvokeRequired)
65             {
66                 if (!Instance.MonoRuntime || Chat.IsHandleCreated)
67                     Chat.Invoke(new MethodInvoker(() => Execute(name, cmdArgs, WriteLine)));
68                 return;
69             }
70
71             if (cmdArgs.Length == 0)
72             {
73                 if (Instance.State.FollowName == string.Empty)
74                     WriteLine("Follow inactive, type {0}follow person name, to start following them", CommandsManager.CmdPrefix);
75                 else
76                     WriteLine("Following {0}", Instance.State.FollowName);
77                 return;
78             }
79
80             string cmd = string.Join(" ", cmdArgs);
81
82             if (cmd == "stop")
83             {
84                 Instance.State.StopFollowing();
85                 WriteLine("Following stopped");
86                 return;
87             }
88
89             List<UUID> people = Chat.GetAvatarList();
90             UUID person = people.Find((UUID id) => { return Instance.Names.Get(id).ToLower().StartsWith(cmd.ToLower()); });
91             if (person == UUID.Zero)
92             {
93                 WriteLine("Could not find {0}", cmd);
94                 return;
95             }
96
97             Instance.State.Follow(Instance.Names.Get(person), person);
98             WriteLine("Following {0}", Instance.State.FollowName);
99         }
100     }
101 }