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
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
//! An application shell built with flexbox and grid: header, sidebar, card grid, and status bar.
//!
//! The sidebar has a fixed width and never shrinks. The content area takes the remaining space with
//! `flex_1` and `min_w_0`. As the window narrows, the card grid loses columns and the sidebar hides.
//! Pay particular attention to `grid_cols`, `overflow_y_scroll`, and `relative`.
//!
//! Run it with `cargo run --example layout`.
use gpui::{
App, Bounds, Context, FontWeight, QuitMode, Window, WindowBounds, WindowOptions,
colors::Colors, div, prelude::*, px, relative, rems, rgb, size,
};
const NAV_ITEMS: [&str; 4] = ["Overview", "Projects", "Calendar", "Settings"];
/// A project card: its title, a status line and an accent color.
const CARDS: [(&str, &str, u32); 9] = [
(
"Website redesign",
"Homepage and pricing pages are in review.",
0x2457ca,
),
(
"Mobile release",
"Build 1.4 is waiting for store approval.",
0x3a9d5d,
),
(
"Onboarding flow",
"Five steps, down from eight after testing.",
0xd08a2e,
),
(
"API v2",
"Auth endpoints are done. Rate limits next.",
0x8a4fd1,
),
("Docs portal", "Search indexing is half finished.", 0x2a9bb0),
(
"Billing sync",
"Blocked on the payment provider sandbox.",
0xc7463f,
),
(
"Design system",
"Forty components migrated to tokens.",
0x2457ca,
),
(
"Analytics",
"Weekly report now goes out on Mondays.",
0x3a9d5d,
),
("Hiring", "Two engineering roles open this month.", 0xd08a2e),
];
struct AppShell {
selected: usize,
}
impl Render for AppShell {
fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
let colors = Colors::for_appearance(window);
let width = window.viewport_size().width;
let narrow = width < px(640.);
let columns: u16 = if narrow {
1
} else if width < px(960.) {
2
} else {
3
};
let header = div()
.flex()
.items_center()
.flex_shrink_0()
.h(rems(3.5))
.px(rems(1.))
.border_b_1()
.border_color(colors.separator)
.child(
div()
.flex()
.items_center()
.gap_2()
.child(div().size(rems(1.5)).rounded_md().bg(rgb(0x2457ca)))
.child(div().font_weight(FontWeight::SEMIBOLD).child("Atlas")),
);
let sidebar = div()
.w(px(200.))
.flex_shrink_0()
.flex()
.flex_col()
.gap_1()
.p_3()
.border_r_1()
.border_color(colors.separator)
.children(NAV_ITEMS.iter().enumerate().map(|(ix, label)| {
let selected = ix == self.selected;
div()
.id(("nav", ix))
.px_3()
.py_2()
.rounded_md()
.text_sm()
.cursor_pointer()
.when(selected, |item| {
item.bg(colors.selected).text_color(colors.selected_text)
})
.when(!selected, |item| {
item.hover(|style| style.bg(colors.container))
})
.child(*label)
.on_click(cx.listener(move |this, _event, _window, cx| {
this.selected = ix;
cx.notify();
}))
}))
.child(
div()
.mt_auto()
.flex()
.flex_col()
.gap_2()
.p_3()
.rounded_lg()
.bg(colors.container)
.text_xs()
.text_color(colors.disabled)
.child("Storage, 70% used")
.child(
div()
.h(px(6.))
.w_full()
.rounded_full()
.bg(colors.background)
.child(
div()
.h_full()
.w(relative(0.7))
.rounded_full()
.bg(rgb(0x2457ca)),
),
),
);
let toolbar = div()
.flex()
.items_center()
.justify_between()
.gap_4()
.px(rems(1.))
.py(rems(0.75))
.child(
div()
.min_w_0()
.child(
div()
.text_lg()
.font_weight(FontWeight::SEMIBOLD)
.child("Projects"),
)
.child(
div()
.text_xs()
.text_color(colors.disabled)
.child("9 active, 2 archived"),
),
)
.child(
div()
.flex_shrink_0()
.px_3()
.py_1()
.rounded_md()
.text_sm()
.bg(colors.selected)
.text_color(colors.selected_text)
.child("New project"),
);
let cards = div()
.grid()
.grid_cols(columns)
.gap_4()
.children(CARDS.map(|card| card_view(card, &colors)));
let content = div()
.flex_1()
.min_w_0()
.min_h_0()
.flex()
.flex_col()
.child(toolbar)
.child(
div()
.id("cards")
.flex_1()
.min_h_0()
.overflow_y_scroll()
.p(rems(1.))
.child(cards),
);
let status_bar = div()
.flex()
.items_center()
.justify_between()
.flex_shrink_0()
.h(rems(2.))
.px(rems(1.))
.gap_3()
.text_xs()
.text_color(colors.disabled)
.bg(colors.container)
.border_t_1()
.border_color(colors.separator)
.child("Synced 2 minutes ago")
.child(format!("{} items", CARDS.len()));
div()
.size_full()
.flex()
.flex_col()
.bg(colors.background)
.text_color(colors.text)
.child(header)
.child(
div()
.flex_1()
.min_h_0()
.flex()
.flex_row()
.when(!narrow, |body| body.child(sidebar))
.child(content),
)
.child(status_bar)
}
}
fn card_view(
(title, detail, accent): (&'static str, &'static str, u32),
colors: &Colors,
) -> impl IntoElement {
div()
.flex()
.flex_col()
.gap_2()
.p_4()
.rounded_lg()
.border_1()
.border_color(colors.separator)
.bg(colors.container)
.child(div().h(px(6.)).w(rems(3.)).rounded_full().bg(rgb(accent)))
.child(div().font_weight(FontWeight::SEMIBOLD).child(title))
.child(div().text_sm().text_color(colors.disabled).child(detail))
}
fn main() {
gpui_platform::application()
.with_quit_mode(QuitMode::LastWindowClosed)
.run(run);
}
/// Opens the example window. The browser player and the example tests call this too.
pub fn run(cx: &mut App) {
let bounds = Bounds::centered(None, size(px(960.), px(640.)), cx);
cx.open_window(
WindowOptions::default().window_bounds(WindowBounds::Windowed(bounds)),
|_window, cx| cx.new(|_cx| AppShell { selected: 0 }),
)
.unwrap();
cx.activate(true);
}