search/Tray/TrayIcon.cs

   1 //
   2 //  TrayIcon.cs
   3 //
   4 //  Copyright (C) 2005 Novell, Inc.
   5 //
   6
   7 using System;
   8 using System.Collections;
   9 using System.Runtime.InteropServices;
  10 using Mono.Unix;
  11
  12 using Gtk;
  13 using Gdk;
  14
  15 namespace Search.Tray
  16 {
  17         public delegate void SearchDelegate (string query);
  18
  19         public class TrayIcon
  20         {
  21                 private EventBox eventbox;
  22                 private NotificationArea notification_area;
  23                 private Menu popup;
  24                 private ArrayList recent_searches;
  25                 private Hashtable menu_to_query_map;
  26
  27                 public event EventHandler Clicked;
  28                 public SearchDelegate Search;
  29
  30                 public TrayIcon ()
  31                 {
  32                         notification_area = new NotificationArea (Catalog.GetString ("Desktop Search"));
  33
  34                         eventbox = new EventBox ();
  35                         eventbox.ButtonPressEvent += OnClick;
  36
  37                         Gdk.Pixbuf pixbuf = Beagle.Images.GetPixbuf ("system-search.png");
  38                         eventbox.Add (new Gtk.Image (pixbuf.ScaleSimple (24, 24, Gdk.InterpType.Hyper)));
  39
  40                         notification_area.Add (eventbox);
  41                         notification_area.ShowAll ();
  42
  43                         recent_searches = new ArrayList ();
  44
  45                         popup = MakeMenu (eventbox);
  46                 }
  47
  48                 private Gtk.Menu MakeMenu (Gtk.Widget parent)
  49                 {
  50                         Gtk.Menu menu = new Gtk.Menu ();
  51                         menu.AttachToWidget (parent, new Gtk.MenuDetachFunc (DetachWidget));
  52
  53                         Gtk.ImageMenuItem item;
  54
  55                         // Quick Search menu items
  56                         if (recent_searches.Count == 0) {
  57                                 item = new Gtk.ImageMenuItem (Catalog.GetString ("No Recent Searches"));
  58                                 item.Sensitive = false;
  59                                 menu.Append (item);
  60                                 menu_to_query_map = null;
  61                         } else {
  62                                 item = new Gtk.ImageMenuItem (Catalog.GetString ("Recent Searches"));
  63                                 item.Sensitive = false;
  64                                 item.Image = new Gtk.Image (Stock.Find, IconSize.Menu);
  65                                 menu.Append (item);
  66
  67                                 menu_to_query_map = new Hashtable ();
  68
  69                                 foreach (string s in recent_searches) {
  70                                         item = new Gtk.ImageMenuItem (s);
  71                                         item.Activated += new EventHandler (OnSearch);
  72                                         menu.Append (item);
  73                                         menu_to_query_map [item] = s;
  74                                 }
  75                         }
  76
  77                         if (recent_searches.Count > 0) {
  78                                 item = new Gtk.ImageMenuItem (Catalog.GetString ("Clear"));
  79                                 item.Image = new Gtk.Image (Gtk.Stock.Clear, Gtk.IconSize.Menu);
  80                                 item.Activated += new EventHandler (OnClear);
  81                                 menu.Append (item);
  82                         }
  83
  84                         menu.Append (new Gtk.SeparatorMenuItem ());
  85
  86                         item = new Gtk.ImageMenuItem (Catalog.GetString ("Quit"));
  87                         item.Image = new Gtk.Image (Gtk.Stock.Quit, Gtk.IconSize.Menu);
  88                         item.Activated += new EventHandler (OnQuit);
  89                         menu.Append (item);
  90
  91                         menu.ShowAll ();
  92                         return menu;
  93                 }
  94
  95                 public void AddSearch (string query)
  96                 {
  97                         if (! recent_searches.Contains (query)) {
  98                                 recent_searches.Add (query);
  99                                 popup = MakeMenu (eventbox);
 100                         }
 101                 }
 102
 103                 private void OnSearch (object sender, EventArgs args)
 104                 {
 105                         if (Search != null)
 106                                 Search ((string) menu_to_query_map [sender]);
 107                 }
 108
 109                 private void OnQuit (object sender, EventArgs args)
 110                 {
 111                         Application.Quit ();
 112                 }
 113
 114                 private void OnClear (object sender, EventArgs args)
 115                 {
 116                         recent_searches.Clear ();
 117                         popup = MakeMenu (eventbox);
 118                 }
 119
 120                 private void DetachWidget (Gtk.Widget attach_widget, Gtk.Menu menu)
 121                 {
 122                 }
 123
 124                 public static void GetMenuPosition (Gtk.Menu menu, out int  x, out int  y, out bool push_in)
 125                 {
 126                         Gtk.Requisition menu_req = menu.SizeRequest ();
 127                         menu.AttachWidget.GdkWindow.GetOrigin (out x, out y);
 128
 129                         if (y + menu_req.Height >= menu.AttachWidget.Screen.Height)
 130                                 y -= menu_req.Height;
 131                         else
 132                                 y += menu.AttachWidget.Allocation.Height;
 133
 134                         push_in = true;
 135                 }
 136
 137                 static void DeactivateMenu (object sender, EventArgs args)
 138                 {
 139                         Gtk.Menu menu = (Gtk.Menu) sender;
 140                         menu.Popdown ();
 141                 }
 142
 143                 // Place the menu underneath an arbitrary parent widget.  The
 144                 // parent widget must be set using menu.AttachToWidget before
 145                 // calling this
 146                 public static void PopupMenu (Gtk.Menu menu, Gdk.EventButton ev)
 147                 {
 148                         menu.Deactivated += DeactivateMenu;
 149                         menu.Popup (null, null, new Gtk.MenuPositionFunc (GetMenuPosition),
 150                                     (ev == null) ? 0 : ev.Button,
 151                                     (ev == null) ? Gtk.Global.CurrentEventTime : ev.Time);
 152                 }
 153
 154                 private void OnClick (object o, ButtonPressEventArgs args)
 155                 {
 156                         if (args.Event.Type != EventType.ButtonPress)
 157                                 return;
 158
 159                         switch (args.Event.Button) {
 160                         case 1:
 161                                 if (Clicked != null)
 162                                         Clicked (o, args);
 163                                 break;
 164                         case 3:
 165                                 PopupMenu (popup, args.Event);
 166                                 break;
 167                         }
 168
 169                         args.RetVal = false;
 170                 }
 171         }
 172 }