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Viewing changes to Do.Interface.Linux.Docky/src/Docky.Core/Docky.Core.Default/DockletService.cs

  • Committer: rugby471 at gmail
  • Date: 2010-10-15 16:08:38 UTC
  • Revision ID: rugby471@gmail.com-20101015160838-z9m3utbf7bxzb5ty
reverted to before docky removal

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Do.Interface.Linux.Docky/src/Docky.Core/Docky.Core.Default/DockletService.cs
 
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//  
 
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//  Copyright (C) 2009 GNOME Do
 
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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.Collections.Generic;
 
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using System.Linq;
 
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using Mono.Addins;
 
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using Do.Platform;
 
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using Docky.Core;
 
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using Docky.Interface;
 
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namespace Docky.Core.Default
 
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{
 
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        public class DockletService : IDockletService
 
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        {
 
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                const string ExtensionPath = "/Docky/Docklet";
 
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                Dictionary<AbstractDockletItem, bool> docklets;
 
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                #region IDockletService implementation 
 
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                public event EventHandler AppletVisibilityChanged;
 
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                public bool ToggleDocklet (AbstractDockletItem docklet)
 
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                {
 
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                        if (!docklets.ContainsKey (docklet))
 
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                                return false;
 
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                        if (docklets [docklet])
 
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                                docklet.Disable ();
 
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                        else
 
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                                docklet.Enable ();
 
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                        docklets [docklet] = !docklets [docklet];
 
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                        SaveConfiguration ();
 
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                        OnAppletVisibilityChanged ();
 
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                        return true;
 
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                }
 
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                public IEnumerable<AbstractDockletItem> Docklets {
 
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                        get {
 
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                                return docklets.Keys.OrderBy (d => d.Name);
 
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                        }
 
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                }
 
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                public IEnumerable<AbstractDockletItem> ActiveDocklets {
 
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                        get {
 
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                                if (docklets == null)
 
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                                        yield break;
 
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                                foreach (AbstractDockletItem adi in docklets
 
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                                         .Where (kvp => kvp.Value)
 
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                                         .Select (kvp => kvp.Key)
 
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                                         .OrderBy (adi => adi.Name))
 
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                                        yield return adi;
 
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                        }
 
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                }
 
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                #endregion 
 
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                IPreferences prefs;
 
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                public static IEnumerable<AbstractDockletItem> MADocklets {
 
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                        get { return AddinManager.GetExtensionObjects (ExtensionPath).OfType<AbstractDockletItem> (); }
 
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                }
 
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                public DockletService()
 
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                {
 
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                        prefs = Services.Preferences.Get<DockletService> ();
 
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                        prefs.PreferencesChanged += HandlePreferencesChanged;
 
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                        AddinManager.AddExtensionNodeHandler (ExtensionPath, HandleDockletsChanged);
 
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                        BuildDocklets ();
 
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                }
 
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                void HandlePreferencesChanged (object sender, PreferencesChangedEventArgs args)
 
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                {
 
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                        if (args.Key != "ActiveApplets")
 
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                                return;
 
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                        BuildDocklets ();
 
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                        OnAppletVisibilityChanged ();
 
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                }
 
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                void HandleDockletsChanged (object sender, ExtensionNodeEventArgs args)
 
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                {
 
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                        BuildDocklets ();
 
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                        SaveConfiguration ();
 
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                        OnAppletVisibilityChanged ();
 
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                }
 
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                void BuildDocklets ()
 
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                {
 
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                        // ToArray this due to lazy evaluation
 
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                        IEnumerable<AbstractDockletItem> previous = ActiveDocklets.ToArray ();
 
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                        IEnumerable<string> visible = VisibleApplets ();
 
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                        docklets = new Dictionary<AbstractDockletItem, bool> ();
 
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                        foreach (AbstractDockletItem adi in MADocklets) {
 
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                                docklets.Add (adi, visible.Contains (adi.GetType ().Name));
 
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                        }
 
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                        foreach (AbstractDockletItem adi in ActiveDocklets.Where (d => !previous.Contains (d))) {
 
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                                adi.Enable ();
 
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                        }
 
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                }
 
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                IEnumerable<string> VisibleApplets ()
 
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                {
 
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                        string configString = prefs.Get ("ActiveApplets", "ClockDockItem;");
 
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                        return configString.Split (';');
 
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                }
 
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                void SaveConfiguration ()
 
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                {
 
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                        string s = "";
 
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                        foreach (AbstractDockletItem abi in ActiveDocklets) {
 
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                                s += abi.GetType ().Name + ";";
 
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                        }
 
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                        if (s != prefs.Get ("ActiveApplets", "ClockDockItem;"))
 
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                                prefs.Set ("ActiveApplets", s);
 
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                }
 
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                void OnAppletVisibilityChanged ()
 
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                {
 
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                        if (AppletVisibilityChanged != null)
 
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                                AppletVisibilityChanged (this, EventArgs.Empty);
 
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                }
 
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                #region IDisposable implementation 
 
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                public void Dispose ()
 
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                {
 
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                        AddinManager.RemoveExtensionNodeHandler (ExtensionPath, HandleDockletsChanged);
 
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                }
 
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                #endregion 
 
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        }
 
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}