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
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
use gpui::{
App, Application, Bounds, Context, Div, ElementId, FocusHandle, KeyBinding, SharedString,
Stateful, Window, WindowBounds, WindowOptions, actions, div, prelude::*, px, size,
};
actions!(example, [Tab, TabPrev, Quit]);
struct Example {
focus_handle: FocusHandle,
items: Vec<(FocusHandle, &'static str)>,
message: SharedString,
}
impl Example {
fn new(window: &mut Window, cx: &mut Context<Self>) -> Self {
let items = vec![
(
cx.focus_handle().tab_index(1).tab_stop(true),
"Button with .focus() - always shows border when focused",
),
(
cx.focus_handle().tab_index(2).tab_stop(true),
"Button with .focus_visible() - only shows border with keyboard",
),
(
cx.focus_handle().tab_index(3).tab_stop(true),
"Button with both .focus() and .focus_visible()",
),
];
let focus_handle = cx.focus_handle();
window.focus(&focus_handle, cx);
Self {
focus_handle,
items,
message: SharedString::from(
"Try clicking vs tabbing! Click shows no border, Tab shows border.",
),
}
}
fn on_tab(&mut self, _: &Tab, window: &mut Window, cx: &mut Context<Self>) {
window.focus_next(cx);
self.message = SharedString::from("Pressed Tab - focus-visible border should appear!");
}
fn on_tab_prev(&mut self, _: &TabPrev, window: &mut Window, cx: &mut Context<Self>) {
window.focus_prev(cx);
self.message =
SharedString::from("Pressed Shift-Tab - focus-visible border should appear!");
}
fn on_quit(&mut self, _: &Quit, _window: &mut Window, cx: &mut Context<Self>) {
cx.quit();
}
}
impl Render for Example {
fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
fn button_base(id: impl Into<ElementId>, label: &'static str) -> Stateful<Div> {
div()
.id(id)
.h_16()
.w_full()
.flex()
.justify_center()
.items_center()
.bg(gpui::rgb(0x2563eb))
.text_color(gpui::white())
.rounded_md()
.cursor_pointer()
.hover(|style| style.bg(gpui::rgb(0x1d4ed8)))
.child(label)
}
div()
.id("app")
.track_focus(&self.focus_handle)
.on_action(cx.listener(Self::on_tab))
.on_action(cx.listener(Self::on_tab_prev))
.on_action(cx.listener(Self::on_quit))
.size_full()
.flex()
.flex_col()
.p_8()
.gap_6()
.bg(gpui::rgb(0xf3f4f6))
.child(
div()
.text_2xl()
.font_weight(gpui::FontWeight::BOLD)
.text_color(gpui::rgb(0x111827))
.child("CSS focus-visible Demo"),
)
.child(
div()
.p_4()
.rounded_md()
.bg(gpui::rgb(0xdbeafe))
.text_color(gpui::rgb(0x1e3a8a))
.child(self.message.clone()),
)
.child(
div()
.flex()
.flex_col()
.gap_4()
.child(
div()
.flex()
.flex_col()
.gap_2()
.child(
div()
.text_sm()
.font_weight(gpui::FontWeight::BOLD)
.text_color(gpui::rgb(0x374151))
.child("1. Regular .focus() - always visible:"),
)
.child(
button_base("button1", self.items[0].1)
.track_focus(&self.items[0].0)
.focus(|style| {
style.border_4().border_color(gpui::rgb(0xfbbf24))
})
.on_click(cx.listener(|this, _, _, cx| {
this.message =
"Clicked button 1 - focus border is visible!".into();
cx.notify();
})),
),
)
.child(
div()
.flex()
.flex_col()
.gap_2()
.child(
div()
.text_sm()
.font_weight(gpui::FontWeight::BOLD)
.text_color(gpui::rgb(0x374151))
.child("2. New .focus_visible() - only keyboard:"),
)
.child(
button_base("button2", self.items[1].1)
.track_focus(&self.items[1].0)
.focus_visible(|style| {
style.border_4().border_color(gpui::rgb(0x10b981))
})
.on_click(cx.listener(|this, _, _, cx| {
this.message =
"Clicked button 2 - no border! Try Tab instead.".into();
cx.notify();
})),
),
)
.child(
div()
.flex()
.flex_col()
.gap_2()
.child(
div()
.text_sm()
.font_weight(gpui::FontWeight::BOLD)
.text_color(gpui::rgb(0x374151))
.child(
"3. Both .focus() (yellow) and .focus_visible() (green):",
),
)
.child(
button_base("button3", self.items[2].1)
.track_focus(&self.items[2].0)
.focus(|style| {
style.border_4().border_color(gpui::rgb(0xfbbf24))
})
.focus_visible(|style| {
style.border_4().border_color(gpui::rgb(0x10b981))
})
.on_click(cx.listener(|this, _, _, cx| {
this.message =
"Clicked button 3 - yellow border. Tab shows green!"
.into();
cx.notify();
})),
),
),
)
}
}
fn main() {
Application::new().run(|cx: &mut App| {
cx.bind_keys([
KeyBinding::new("tab", Tab, None),
KeyBinding::new("shift-tab", TabPrev, None),
KeyBinding::new("cmd-q", Quit, None),
]);
let bounds = Bounds::centered(None, size(px(800.), px(600.0)), cx);
cx.open_window(
WindowOptions {
window_bounds: Some(WindowBounds::Windowed(bounds)),
..Default::default()
},
|window, cx| cx.new(|cx| Example::new(window, cx)),
)
.unwrap();
cx.activate(true);
});
}