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
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
content / browser / renderer_host / input / touch_selection_controller_client_aura.h [blame]
// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCH_SELECTION_CONTROLLER_CLIENT_AURA_H_
#define CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCH_SELECTION_CONTROLLER_CLIENT_AURA_H_
#include <memory>
#include "base/memory/raw_ptr.h"
#include "base/observer_list.h"
#include "base/timer/timer.h"
#include "content/common/content_export.h"
#include "content/public/browser/touch_selection_controller_client_manager.h"
#include "ui/touch_selection/touch_selection_controller.h"
#include "ui/touch_selection/touch_selection_menu_runner.h"
namespace ui {
class TouchSelectionMagnifierAura;
}
namespace content {
struct ContextMenuParams;
class RenderWidgetHostViewAura;
// An implementation of |TouchSelectionControllerClient| to be used in Aura's
// implementation of touch selection for contents.
class CONTENT_EXPORT TouchSelectionControllerClientAura
: public ui::TouchSelectionControllerClient,
public ui::TouchSelectionMenuClient,
public TouchSelectionControllerClientManager {
public:
explicit TouchSelectionControllerClientAura(RenderWidgetHostViewAura* rwhva);
TouchSelectionControllerClientAura(
const TouchSelectionControllerClientAura&) = delete;
TouchSelectionControllerClientAura& operator=(
const TouchSelectionControllerClientAura&) = delete;
~TouchSelectionControllerClientAura() override;
// Called when |rwhva_|'s window is moved, to update the quick menu's
// position.
void OnWindowMoved();
// Called on first touch down/last touch up to hide/show the quick menu.
void OnTouchDown();
void OnTouchUp();
// Called when touch scroll starts/completes to hide/show touch handles and
// the quick menu.
void OnScrollStarted();
void OnScrollCompleted();
// Gives an opportunity to the client to handle context menu request and show
// the quick menu instead, if appropriate. Returns |true| to indicate that no
// further handling is needed.
// TODO(mohsen): This is to match Chrome on Android behavior. However, it is
// better not to send context menu request from the renderer in this case and
// instead decide in the client about showing the quick menu in response to
// selection events. (http://crbug.com/548245)
virtual bool HandleContextMenu(const ContextMenuParams& params);
virtual void UpdateClientSelectionBounds(const gfx::SelectionBound& start,
const gfx::SelectionBound& end);
// TouchSelectionControllerClientManager.
void DidStopFlinging() override;
void OnSwipeToMoveCursorBegin() override;
void OnSwipeToMoveCursorEnd() override;
void OnClientHitTestRegionUpdated(
ui::TouchSelectionControllerClient* client) override;
void UpdateClientSelectionBounds(
const gfx::SelectionBound& start,
const gfx::SelectionBound& end,
ui::TouchSelectionControllerClient* client,
ui::TouchSelectionMenuClient* menu_client) override;
void InvalidateClient(ui::TouchSelectionControllerClient* client) override;
ui::TouchSelectionController* GetTouchSelectionController() override;
void AddObserver(
TouchSelectionControllerClientManager::Observer* observer) override;
void RemoveObserver(
TouchSelectionControllerClientManager::Observer* observer) override;
private:
friend class TestTouchSelectionControllerClientAura;
class EnvEventObserver;
class EnvPreTargetHandler;
bool IsQuickMenuAvailable() const;
void ShowQuickMenu();
void UpdateQuickMenu();
void ShowMagnifier();
void HideMagnifier();
// ui::TouchSelectionControllerClient:
bool SupportsAnimation() const override;
void SetNeedsAnimate() override;
void MoveCaret(const gfx::PointF& position) override;
void MoveRangeSelectionExtent(const gfx::PointF& extent) override;
void SelectBetweenCoordinates(const gfx::PointF& base,
const gfx::PointF& extent) override;
void OnSelectionEvent(ui::SelectionEventType event) override;
void OnDragUpdate(const ui::TouchSelectionDraggable::Type type,
const gfx::PointF& position) override;
std::unique_ptr<ui::TouchHandleDrawable> CreateDrawable() override;
void DidScroll() override;
// ui::TouchSelectionMenuClient:
bool IsCommandIdEnabled(int command_id) const override;
void ExecuteCommand(int command_id, int event_flags) override;
void RunContextMenu() override;
bool ShouldShowQuickMenu() override;
std::u16string GetSelectedText() override;
// Not owned, non-null for the lifetime of this object.
raw_ptr<RenderWidgetHostViewAura> rwhva_;
class InternalClient final : public TouchSelectionControllerClient {
public:
explicit InternalClient(RenderWidgetHostViewAura* rwhva) : rwhva_(rwhva) {}
~InternalClient() final {}
bool SupportsAnimation() const final;
void SetNeedsAnimate() final;
void MoveCaret(const gfx::PointF& position) final;
void MoveRangeSelectionExtent(const gfx::PointF& extent) final;
void SelectBetweenCoordinates(const gfx::PointF& base,
const gfx::PointF& extent) final;
void OnSelectionEvent(ui::SelectionEventType event) final;
void OnDragUpdate(const ui::TouchSelectionDraggable::Type type,
const gfx::PointF& position) final;
std::unique_ptr<ui::TouchHandleDrawable> CreateDrawable() final;
void DidScroll() override;
private:
raw_ptr<RenderWidgetHostViewAura, DanglingUntriaged> rwhva_;
} internal_client_;
// Keep track of which client interface to use.
raw_ptr<TouchSelectionControllerClient> active_client_;
raw_ptr<TouchSelectionMenuClient> active_menu_client_;
gfx::SelectionBound manager_selection_start_;
gfx::SelectionBound manager_selection_end_;
base::ObserverList<TouchSelectionControllerClientManager::Observer>
observers_;
base::RetainingOneShotTimer quick_menu_timer_;
bool quick_menu_requested_;
bool touch_down_;
bool scroll_in_progress_;
bool handle_drag_in_progress_;
bool show_quick_menu_immediately_for_test_;
// An event observer that deactivates touch selection on certain input events.
std::unique_ptr<EnvEventObserver> env_event_observer_;
// Magnifier which is shown when touch dragging to adjust the selection.
std::unique_ptr<ui::TouchSelectionMagnifierAura> touch_selection_magnifier_;
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCH_SELECTION_CONTROLLER_CLIENT_AURA_H_