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mediating_display_changer.h
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1 /*
2  * Copyright © 2013 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: Kevin DuBois <kevin.dubois@canonical.com>
17  */
18 
19 #ifndef MIR_SHELL_MEDIATING_DISPLAY_CHANGER_H_
20 #define MIR_SHELL_MEDIATING_DISPLAY_CHANGER_H_
21 
23 #include "mir/display_changer.h"
24 
25 #include <mutex>
26 #include <map>
27 
28 namespace mir
29 {
30 
31 namespace graphics
32 {
33  class Display;
34  class DisplayConfigurationPolicy;
35 }
36 namespace compositor { class Compositor; }
37 
38 namespace shell
39 {
40 
41 class SessionContainer;
42 class SessionEventHandlerRegister;
43 
45  public mir::DisplayChanger
46 {
47 public:
49  std::shared_ptr<graphics::Display> const& display,
50  std::shared_ptr<compositor::Compositor> const& compositor,
51  std::shared_ptr<graphics::DisplayConfigurationPolicy> const& display_configuration_policy,
52  std::shared_ptr<SessionContainer> const& session_container,
53  std::shared_ptr<SessionEventHandlerRegister> const& session_event_handler_register);
54 
55  /* From mir::frontend::DisplayChanger */
56  std::shared_ptr<graphics::DisplayConfiguration> active_configuration();
57  void configure(std::shared_ptr<frontend::Session> const& session,
58  std::shared_ptr<graphics::DisplayConfiguration> const& conf);
59 
60  void ensure_display_powered(std::shared_ptr<frontend::Session> const& session);
61 
62  /* From mir::DisplayChanger */
64  std::shared_ptr<graphics::DisplayConfiguration> const& conf,
65  SystemStateHandling pause_resume_system);
66 
67 private:
68  void apply_config(std::shared_ptr<graphics::DisplayConfiguration> const& conf,
69  SystemStateHandling pause_resume_system);
70  void apply_base_config(SystemStateHandling pause_resume_system);
71  void send_config_to_all_sessions(
72  std::shared_ptr<graphics::DisplayConfiguration> const& conf);
73 
74  std::shared_ptr<graphics::Display> const display;
75  std::shared_ptr<compositor::Compositor> const compositor;
76  std::shared_ptr<graphics::DisplayConfigurationPolicy> const display_configuration_policy;
77  std::shared_ptr<shell::SessionContainer> const session_container;
78  std::shared_ptr<SessionEventHandlerRegister> const session_event_handler_register;
79  std::mutex configuration_mutex;
80  std::map<std::weak_ptr<frontend::Session>,
81  std::shared_ptr<graphics::DisplayConfiguration>,
82  std::owner_less<std::weak_ptr<frontend::Session>>> config_map;
83  std::weak_ptr<frontend::Session> focused_session;
84  std::shared_ptr<graphics::DisplayConfiguration> base_configuration;
85  bool base_configuration_applied;
86 };
87 
88 }
89 }
90 
91 #endif /* MIR_SHELL_MEDIATING_DISPLAY_CHANGER_H_ */

Copyright © 2012,2013 Canonical Ltd.
Generated on Wed Oct 30 18:52:19 UTC 2013