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Viewing changes to Do.Addins/src/Do.Universe/DefineWordAction.cs

  • Committer: Bazaar Package Importer
  • Author(s): Christopher James Halse Rogers
  • Date: 2008-09-14 10:09:40 UTC
  • mto: (0.1.8 sid)
  • mto: This revision was merged to the branch mainline in revision 7.
  • Revision ID: james.westby@ubuntu.com-20080914100940-kyghudg7py14bu2z
Tags: upstream-0.6.0.0
Import upstream version 0.6.0.0

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Do.Addins/src/Do.Universe/DefineWordAction.cs
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/* DefineWordAction.cs
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 *
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 * GNOME Do is the legal property of its developers. Please refer to the
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 * COPYRIGHT file distributed with this source distribution.
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 *
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 * This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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 */
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using System;
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using System.Text.RegularExpressions;
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using Mono.Unix;
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namespace Do.Universe
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{
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        /// <summary>
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        /// Given an ITextItem, DefineWordAction will look up the Text
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        /// contents of the ITextItem using the gnome-dictionary.
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        /// </summary>
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        public class DefineWordAction : AbstractAction
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        {
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                /// <summary>
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                /// Should match those and only those strings that can be
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                /// looked up in a dictionary.
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                /// YES: "war", "peace", "hoi polloi"
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                /// NO: "war9", "2 + 4", "___1337__"
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                /// </summary>
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                const string wordPattern = @"^([^\W0-9_]+([ -][^\W0-9_]+)?)$";
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                Regex wordRegex;
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                public DefineWordAction ()
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                {
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                        wordRegex = new Regex (wordPattern, RegexOptions.Compiled);
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                }
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                public override string Name {
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                        get { return Catalog.GetString ("Define"); }
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                }
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                public override string Description
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                {
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                        get { return Catalog.GetString ("Define a given word."); }
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                }
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                public override string Icon
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                {
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                        get { return "accessories-dictionary"; }
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                }
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                public override Type[] SupportedItemTypes
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                {
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                        get {
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                                return new Type[] {
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                                        typeof (ITextItem),
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                                };
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                        }
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                }
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                /// <summary>
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                /// Use wordRegex to determine whether item is definable.
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                /// </summary>
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                /// <param name="item">
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                /// A <see cref="IItem"/> to define.
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                /// </param>
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                /// <returns>
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                /// A <see cref="System.Boolean"/> indicating whether or not IITem
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                /// can be defined.
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                /// </returns>
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                public override bool SupportsItem (IItem item)
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                {
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                        string word;
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                        word = null;
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                        if (item is ITextItem) {
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                                word = (item as ITextItem).Text;
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                        }
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                        return !string.IsNullOrEmpty (word) && wordRegex.IsMatch (word);
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                }
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                public override IItem[] Perform (IItem[] items, IItem[] modifierItems)
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                {
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                        string word, cmd;
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                        foreach (IItem item in items) {
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                                if (item is ITextItem) {
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                                        word = (item as ITextItem).Text;
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                                } else {
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                                        continue;
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                                }
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                                cmd = string.Format ("gnome-dictionary --look-up \"{0}\"", word);
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                                System.Diagnostics.Process.Start (cmd);
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                        }
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                        return null;
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                }
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        }
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}