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focus_sequence.h
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1 /*
2  * Copyright © 2012 Canonical Ltd.
3  *
4  * This program is free software: you can redistribute it and/or modify it
5  * under the terms of the GNU General Public License version 3,
6  * as published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11  * GNU General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public License
14  * along with this program. If not, see <http://www.gnu.org/licenses/>.
15  *
16  * Authored by: Robert Carr <robert.carr@canonical.com>
17  */
18 
19 #ifndef MIR_SHELL_FOCUS_STRATEGY_H_
20 #define MIR_SHELL_FOCUS_STRATEGY_H_
21 
22 #include <memory>
23 
24 namespace mir
25 {
26 
27 namespace shell
28 {
29 
30 class Session;
31 
33 {
34 public:
35  virtual ~FocusSequence() {}
36 
37  virtual std::shared_ptr<Session> successor_of(std::shared_ptr<Session> const& focused_app) const = 0;
38  virtual std::shared_ptr<Session> predecessor_of(std::shared_ptr<Session> const& focused_app) const = 0;
39  virtual std::shared_ptr<Session> default_focus() const = 0;
40 
41 protected:
42  FocusSequence() = default;
43  FocusSequence(FocusSequence const&) = delete;
44  FocusSequence& operator=(FocusSequence const&) = delete;
45 };
46 
47 }
48 }
49 
50 
51 #endif // MIR_SHELL_FOCUS_SEQUENCE_H_

Copyright © 2012,2013 Canonical Ltd.
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