1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_ASH_EDITOR_MENU_UTILS_PRE_TARGET_HANDLER_H_
#define CHROME_BROWSER_UI_ASH_EDITOR_MENU_UTILS_PRE_TARGET_HANDLER_H_
#include "base/memory/raw_ref.h"
#include "chrome/browser/ui/ash/editor_menu/utils/utils.h"
#include "ui/events/event_handler.h"
#include "ui/views/view_tracker.h"
namespace ui {
class KeyEvent;
class LocatedEvent;
} // namespace ui
namespace views {
class ExternalFocusTracker;
class FocusManager;
class View;
} // namespace views
namespace chromeos::editor_menu {
class QuickAnswersView;
class UserConsentView;
// This class handles mouse events, and update background color or
// dismiss for Quick Answers, Editor Menu, or Mahi Menu views.
// TODO (siabhijeet): Migrate to using two-phased event dispatching.
// TODO(b/329770382): Move this class to read_write_cards directory since it is
// used outside of editor_menu.
class PreTargetHandler : public ui::EventHandler {
public:
class Delegate {
public:
// `PreTargetHandler` will track the events happen on this root view,
// dispatching the events to its children views, and focus the root view
// when needed.
virtual views::View* GetRootView() = 0;
// Returns a list of views to go through with up/down keys. Note that the
// order of the view within this list will determine the order of traversal.
// - Hitting the down key will take the focus to the next view in the list
// (or back to the context menu if the last item in the list is currently
// in focus).
// - Hitting the up key will take the focus to the previous view in the list
// (or back to the context menu if the first item in the list is currently
// in focus).
virtual std::vector<views::View*> GetTraversableViewsByUpDownKeys() = 0;
};
explicit PreTargetHandler(Delegate& delegate,
const CardType& type = CardType::kDefault);
// Disallow copy and assign.
PreTargetHandler(const PreTargetHandler&) = delete;
PreTargetHandler& operator=(const PreTargetHandler&) = delete;
~PreTargetHandler() override;
// ui::EventHandler:
void OnEvent(ui::Event* event) override;
void set_dismiss_anchor_menu_on_view_closed(bool dismiss) {
dismiss_anchor_menu_on_view_closed_ = dismiss;
}
private:
void Init();
// Returns true if event was consumed by |view| or its children.
bool DoDispatchEvent(views::View* view, ui::LocatedEvent* event);
void ProcessKeyEvent(ui::KeyEvent* key_event);
// Helper function for processing VKEY_UP/VKEY_DOWN.
void ProcessKeyUpAndDown(ui::KeyEvent* key_event);
// Moves focus to the context menu using `context_menu_focus_tracker_`.
void MoveFocusToContextMenu();
// Moves focus to the particular `view_gain_focus` as a result from a
// `key_event`.
void MoveFocusTo(views::View* view_gain_focus,
ui::KeyEvent* key_event,
views::FocusManager* current_focus_manager);
const raw_ref<Delegate> delegate_;
// Whether any active menus, |view_| is a companion Quick-Answers related view
// of which, should be dismissed when it is deleted.
bool dismiss_anchor_menu_on_view_closed_ = true;
std::unique_ptr<views::ExternalFocusTracker> context_menu_focus_tracker_;
const CardType card_type_ = CardType::kDefault;
};
} // namespace chromeos::editor_menu
#endif // CHROME_BROWSER_UI_ASH_EDITOR_MENU_UTILS_PRE_TARGET_HANDLER_H_
|
