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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 SurfaceRanker; }
30 
31 namespace shell
32 {
33 class Surface;
34 class InputTargeter;
35 
37 {
38 public:
39  explicit DefaultFocusMechanism(std::shared_ptr<InputTargeter> const& input_targeter,
40  std::shared_ptr<scene::SurfaceRanker> const& surface_controller);
41  virtual ~DefaultFocusMechanism() = default;
42 
43  void set_focus_to(std::shared_ptr<shell::Session> const& new_focus);
44 
45 protected:
48 
49 private:
50  std::shared_ptr<InputTargeter> const input_targeter;
51  std::shared_ptr<scene::SurfaceRanker> const surface_controller;
52 
53  std::mutex surface_focus_lock;
54  std::weak_ptr<Surface> currently_focused_surface;
55 };
56 
57 }
58 }
59 
60 
61 #endif // MIR_SHELL_SINGLE_VISIBILITY_FOCUS_MECHANISM_H_
Interface used by the Shell to propagate changes in the focus model to interested views e...
Definition: focus_setter.h:33
virtual ~DefaultFocusMechanism()=default
void set_focus_to(std::shared_ptr< shell::Session > const &new_focus)
Definition: default_focus_mechanism.cpp:38
DefaultFocusMechanism(std::shared_ptr< InputTargeter > const &input_targeter, std::shared_ptr< scene::SurfaceRanker > const &surface_controller)
DefaultFocusMechanism & operator=(const DefaultFocusMechanism &)=delete
Definition: default_focus_mechanism.h:36

Copyright © 2012,2013 Canonical Ltd.
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