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1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef SERVICES_WINDOW_MANAGER_VIEW_TARGETER_H_ | |
6 #define SERVICES_WINDOW_MANAGER_VIEW_TARGETER_H_ | |
7 | |
8 #include "ui/events/event.h" | |
9 #include "ui/events/event_targeter.h" | |
10 | |
11 namespace window_manager { | |
12 | |
13 class ViewTarget; | |
14 | |
15 class ViewTargeter : public ui::EventTargeter { | |
16 public: | |
17 ViewTargeter(); | |
18 ~ViewTargeter() override; | |
19 | |
20 protected: | |
21 // ui::EventTargeter: | |
22 ui::EventTarget* FindTargetForEvent(ui::EventTarget* root, | |
23 ui::Event* event) override; | |
24 ui::EventTarget* FindNextBestTarget(ui::EventTarget* previous_target, | |
25 ui::Event* event) override; | |
26 | |
27 ui::EventTarget* FindTargetForLocatedEvent(ui::EventTarget* root, | |
28 ui::LocatedEvent* event); | |
29 bool SubtreeShouldBeExploredForEvent(ui::EventTarget* target, | |
30 const ui::LocatedEvent& event); | |
31 bool SubtreeCanAcceptEvent(ui::EventTarget* target, | |
32 const ui::LocatedEvent& event) const; | |
33 bool EventLocationInsideBounds(ui::EventTarget* target, | |
34 const ui::LocatedEvent& event) const; | |
35 | |
36 private: | |
37 // Targets either the root View or the currently focused view. | |
38 ViewTarget* FindTargetForKeyEvent(ViewTarget* view, const ui::KeyEvent& key); | |
39 | |
40 // Deals with cases where the |root_view| needs to change how things are | |
41 // dispatched. (For example, in the case of capture.) | |
42 ViewTarget* FindTargetInRootView(ViewTarget* root_view, | |
43 const ui::LocatedEvent& event); | |
44 | |
45 DISALLOW_COPY_AND_ASSIGN(ViewTargeter); | |
46 }; | |
47 | |
48 } // namespace window_manager | |
49 | |
50 #endif // SERVICES_WINDOW_MANAGER_VIEW_TARGETER_H_ | |
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