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
|
// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_STYLE_SYSTEM_TEXTFIELD_H_
#define ASH_STYLE_SYSTEM_TEXTFIELD_H_
#include <optional>
#include "ash/ash_export.h"
#include "base/memory/raw_ptr.h"
#include "ui/base/metadata/metadata_header_macros.h"
#include "ui/color/color_id.h"
#include "ui/views/controls/textfield/textfield.h"
namespace ash {
// SystemTextfield is an extension of `Views::Textfield` used for system UIs. It
// has specific small, medium, and large types and applies dynamic colors.
class ASH_EXPORT SystemTextfield : public views::Textfield {
METADATA_HEADER(SystemTextfield, views::Textfield)
public:
enum class Type {
kSmall,
kMedium,
kLarge,
};
explicit SystemTextfield(Type type);
SystemTextfield(const SystemTextfield&) = delete;
SystemTextfield& operator=(const SystemTextfield&) = delete;
~SystemTextfield() override;
// Set custom colors of text, selected text, selection background, and
// textfield background color.
void SetTextColorId(ui::ColorId color_id);
void SetSelectedTextColorId(ui::ColorId color_id);
void SetSelectionBackgroundColorId(ui::ColorId color_id);
void SetBackgroundColorId(ui::ColorId color_id);
void SetPlaceholderTextColorId(ui::ColorId color_id);
void SetActiveStateChangedCallback(base::RepeatingClosure callback);
void SetCornerRadius(int corner_radius);
// Activates or deactivates the textfield. The textfield can only be edited if
// it is active.
void SetActive(bool active);
bool IsActive() const;
// Sets if the focus ring should be shown despite the active state.
void SetShowFocusRing(bool show);
// Sets if the themed rounded rect background should be shown.
// TODO(zxdan): Move this to be determined by textfield controller.
void SetShowBackground(bool show);
// Restores to previous text when the changes are discarded.
void RestoreText();
// Creates themed or transparent background according to the textfield states.
void UpdateBackground();
// views::Textfield:
gfx::Size CalculatePreferredSize(
const views::SizeBounds& available_size) const override;
void SetBorder(std::unique_ptr<views::Border> b) override;
void OnMouseEntered(const ui::MouseEvent& event) override;
void OnMouseExited(const ui::MouseEvent& event) override;
void OnThemeChanged() override;
void OnFocus() override;
void OnBlur() override;
private:
// An event handler to handle the events outside the textfield.
class EventHandler;
// Called when the enabled state is changed.
void OnEnabledStateChanged();
// Update custom color ID.
void UpdateColorId(std::optional<ui::ColorId>& src,
ui::ColorId dst,
bool is_background_color);
// Updates text and selection text colors.
void UpdateTextColor();
Type type_;
std::unique_ptr<EventHandler> event_handler_;
int corner_radius_;
// Text content to restore when changes are discarded.
std::u16string restored_text_content_;
// Indicates if the textfield should show focus ring.
bool show_focus_ring_ = false;
// Indicates if the textfield should show background.
bool show_background_ = false;
// custom color IDs for text, selected text, selection background, and
// textfield background.
std::optional<ui::ColorId> text_color_id_;
std::optional<ui::ColorId> selected_text_color_id_;
std::optional<ui::ColorId> selection_background_color_id_;
std::optional<ui::ColorId> background_color_id_;
std::optional<ui::ColorId> placeholder_text_color_id_;
// Active state changed callback.
base::RepeatingClosure active_state_changed_callback_;
// Enabled state changed callback.
base::CallbackListSubscription enabled_changed_subscription_;
};
} // namespace ash
#endif // ASH_STYLE_SYSTEM_TEXTFIELD_H_
|
