summaryrefslogtreecommitdiffstats
path: root/libkcal/scheduler.h
blob: 17e19ec47bd13e0bceca8775316907977179d7d4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
/*
    This file is part of libkcal.

    Copyright (c) 2001-2003 Cornelius Schumacher <schumacher@kde.org>

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
*/
#ifndef KCAL_SCHEDULER_H
#define KCAL_SCHEDULER_H

#include <tqstring.h>
#include <tqptrlist.h>

#include "libkcal_export.h"

namespace KCal {

class IncidenceBase;
class Event;
class Calendar;
class ICalFormat;
class FreeBusyCache;

/**
  This class provides an encapsulation of a scheduling message. It associates an
  incidence with a method and status information. This class is used by the
  Scheduler class.

  @short A Scheduling message
*/
class ScheduleMessage
{
  public:
    /**
      Message status.
    */
    enum Status { PublishNew, PublishUpdate, Obsolete, RequestNew,
                  RequestUpdate, Unknown };
  
    /**
      Create a scheduling message with method as defined in Scheduler::Method
      and a status.
    */
    ScheduleMessage( IncidenceBase *, int method, Status status );
    ~ScheduleMessage() {};
    
    /**
      Return event associated with this message.
    */
    IncidenceBase *event() { return mIncidence; }
    /**
      Return iTIP method associated with this message.
    */
    int method() { return mMethod; }
    /**
      Return status of this message.
    */
    Status status() { return mStatus; }
    /**
      Return error message if there is any.
    */
    TQString error() { return mError; }

    /**
      Return a human-readable name for an iTIP message status.
    */
    static TQString statusName( Status status );

  private:
    IncidenceBase *mIncidence;
    int mMethod;
    Status mStatus;
    TQString mError;

    class Private;
    Private *d;
};

/**
  This class provides an encapsulation of iTIP transactions. It is an abstract
  base class for inheritance by implementations of the iTIP scheme like iMIP or
  iRIP.
*/
class LIBKCAL_EXPORT Scheduler
{
  public:
    /**
      iTIP methods.
    */
    enum Method { Publish,Request,Refresh,Cancel,Add,Reply,Counter,
                  Declinecounter,NoMethod };
  
    /**
      Create scheduler for calendar specified as argument.
    */
    Scheduler( Calendar *calendar );
    virtual ~Scheduler();
    
    /**
      iTIP publish action
    */
    virtual bool publish( IncidenceBase *incidence,
                          const TQString &recipients ) = 0;
    /**
      Perform iTIP transaction on incidence. The method is specified as the
      method argument and can be any valid iTIP method.
    */
    virtual bool performTransaction( IncidenceBase *incidence,
                                     Method method ) = 0;
    /**
      Perform iTIP transaction on incidence to specified recipient(s). The 
      method is specified as the method argumanet and can be any valid iTIP 
      method.
    */
    virtual bool performTransaction( IncidenceBase *incidence, Method method,
                                     const TQString &recipients ) = 0;
    /**
      Retrieve incoming iTIP transactions.
    */
    virtual TQPtrList<ScheduleMessage> retrieveTransactions() = 0;

    /**
      Accept transaction. The incidence argument specifies the iCal compoennt
      on which the transaction acts. The status is the result of processing a
      iTIP message with the current calendar and specifies the action to be
      taken for this incidence.
    */
    bool acceptTransaction( IncidenceBase *, Method method,
                            ScheduleMessage::Status status );

    /**
      Return a machine-readable name for a iTIP method.
    */
    static TQString methodName( Method );
    /**
      Return a translated human-readable name for a iTIP method.
    */
    static TQString translatedMethodName( Method );

    virtual bool deleteTransaction( IncidenceBase *incidence );
    
    /**
      Returns the directory where the free-busy information is stored.
    */
    virtual TQString freeBusyDir() = 0;

    /**
      Set free/busy cache used to store free/busy information.
    */
    void setFreeBusyCache( FreeBusyCache * );
    /**
      Return free/busy cache.
    */
    FreeBusyCache *freeBusyCache() const;

  protected:
    bool acceptPublish( IncidenceBase *, ScheduleMessage::Status status,
                        Method method );
    bool acceptRequest( IncidenceBase *, ScheduleMessage::Status status );
    bool acceptAdd( IncidenceBase *, ScheduleMessage::Status status );
    bool acceptCancel( IncidenceBase *, ScheduleMessage::Status status );
    bool acceptDeclineCounter( IncidenceBase *,
                               ScheduleMessage::Status status );
    bool acceptReply( IncidenceBase *, ScheduleMessage::Status status,
                      Method method );
    bool acceptRefresh( IncidenceBase *, ScheduleMessage::Status status );
    bool acceptCounter( IncidenceBase *, ScheduleMessage::Status status );
    bool acceptFreeBusy( IncidenceBase *, Method method );

    Calendar *mCalendar;
    ICalFormat *mFormat;

  private:
    class Private;
    Private *d;
};

}

#endif