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notifications.cpp
1 /*****************************************************************
2  KWin - the KDE window manager
3  This file is part of the KDE project.
4 
5 Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
6 Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org>
7 
8 You can Freely distribute this program under the GNU General Public
9 License. See the file "COPYING" for the exact licensing terms.
10 ******************************************************************/
11 
12 #include "notifications.h"
13 #include <knotifyclient.h>
14 
15 #include "client.h"
16 
17 namespace KWinInternal
18 {
19 
20 TQString Notify::eventToName( Event e )
21  {
22  TQString event;
23  switch ( e )
24  {
25  case Activate:
26  event = "activate";
27  break;
28  case Close:
29  event = "close";
30  break;
31  case Minimize:
32  event = "minimize";
33  break;
34  case UnMinimize:
35  event = "unminimize";
36  break;
37  case Maximize:
38  event = "maximize";
39  break;
40  case UnMaximize:
41  event = "unmaximize";
42  break;
43  case OnAllDesktops:
44  event = "on_all_desktops";
45  break;
46  case NotOnAllDesktops:
47  event = "not_on_all_desktops";
48  break;
49  case New:
50  event = "new";
51  break;
52  case Delete:
53  event = "delete";
54  break;
55  case TransNew:
56  event = "transnew";
57  break;
58  case TransDelete:
59  event = "transdelete";
60  break;
61  case ShadeUp:
62  event = "shadeup";
63  break;
64  case ShadeDown:
65  event = "shadedown";
66  break;
67  case MoveStart:
68  event = "movestart";
69  break;
70  case MoveEnd:
71  event = "moveend";
72  break;
73  case ResizeStart:
74  event = "resizestart";
75  break;
76  case ResizeEnd:
77  event = "resizeend";
78  break;
79  case DemandAttentionCurrent:
80  event = "demandsattentioncurrent";
81  break;
82  case DemandAttentionOther:
83  event = "demandsattentionother";
84  break;
85  default:
86  if ((e > DesktopChange) && (e <= DesktopChange+20))
87  {
88  event = TQString("desktop%1").arg(e-DesktopChange);
89  }
90  break;
91  }
92  return event;
93  }
94 
95 static bool forgetIt = FALSE;
96 TQValueList< Notify::EventData > Notify::pending_events;
97 
98 bool Notify::raise( Event e, const TQString& message, Client* c )
99  {
100  if ( forgetIt )
101  return false; // no connection was possible, don't try each time
102 
103  TQString event = eventToName( e );
104  if ( !event )
105  return false;
106 
107 // There may be a deadlock if KNotify event is sent while KWin has X grabbed.
108 // If KNotify is not running, TDELauncher may do X requests (startup notification, whatever)
109 // that will block it. And KNotifyClient waits for the launch to succeed, which means
110 // TDELauncher waits for X and KWin waits for TDELauncher. So postpone events in such case.
111  if( grabbedXServer())
112  {
113  EventData data;
114  data.event = event;
115  data.message = message;
116  data.window = c ? c->window() : 0;
117  pending_events.append( data );
118  return true;
119  }
120 
121  forgetIt= !KNotifyClient::event( c ? c->window() : 0, event, message );
122  return !forgetIt;
123  }
124 
125 void Notify::sendPendingEvents()
126  {
127  while( !pending_events.isEmpty())
128  {
129  EventData data = pending_events.first();
130  pending_events.pop_front();
131  if( !forgetIt )
132  forgetIt= !KNotifyClient::event( data.window, data.event, data.message );
133  }
134  }
135 
136 bool Notify::makeDemandAttention( Event e )
137  {
138  TQString event = eventToName( e );
139  if( !event )
140  return false;
141  int rep = KNotifyClient::getPresentation( event );
142  if( rep == -1 )
143  rep = KNotifyClient::getDefaultPresentation( event );
144  return rep != -1 && ( rep & KNotifyClient::Taskbar );
145  }
146 
147 } // namespace

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