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default_focus_mechanism.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_SINGLE_VISIBILITY_FOCUS_MECHANISM_H_
20 #define MIR_SHELL_SINGLE_VISIBILITY_FOCUS_MECHANISM_H_
21 
22 #include "mir/shell/focus_setter.h"
23 
24 #include <memory>
25 #include <mutex>
26 
27 namespace mir
28 {
29 namespace scene { class SurfaceCoordinator; class Surface; }
30 
31 namespace shell
32 {
33 class InputTargeter;
34 
36 {
37 public:
38  explicit DefaultFocusMechanism(std::shared_ptr<InputTargeter> const& input_targeter,
39  std::shared_ptr<scene::SurfaceCoordinator> const& surface_coordinator);
40  virtual ~DefaultFocusMechanism() = default;
41 
42  void set_focus_to(std::shared_ptr<scene::Session> const& new_focus);
43 
44 protected:
47 
48 private:
49  std::shared_ptr<InputTargeter> const input_targeter;
50  std::shared_ptr<scene::SurfaceCoordinator> const surface_coordinator;
51 
52  std::mutex surface_focus_lock;
53  std::weak_ptr<scene::Surface> currently_focused_surface;
54 };
55 
56 }
57 }
58 
59 
60 #endif // MIR_SHELL_SINGLE_VISIBILITY_FOCUS_MECHANISM_H_
All things Mir.
Definition: aging_buffer.h:24
Interface used by the Shell to propagate changes in the focus model to interested views e...
Definition: focus_setter.h:33
virtual ~DefaultFocusMechanism()=default
DefaultFocusMechanism(std::shared_ptr< InputTargeter > const &input_targeter, std::shared_ptr< scene::SurfaceCoordinator > const &surface_coordinator)
void set_focus_to(std::shared_ptr< scene::Session > const &new_focus)
Definition: default_focus_mechanism.cpp:38
DefaultFocusMechanism & operator=(const DefaultFocusMechanism &)=delete
Definition: default_focus_mechanism.h:35

Copyright © 2012,2013 Canonical Ltd.
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