liora-components 0.1.2

Enterprise-style native GPUI component library for Liora applications.
Documentation 
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

use gpui::{
    AnyElement, App, Component, Hsla, IntoElement, Pixels, RenderOnce, SharedString, Window, div,
    prelude::*, px,
};
use liora_core::Config;

#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
pub enum WatermarkPlacement {
    #[default]
    Cover,
    Header,
    Footer,
}

pub struct Watermark {
    content: AnyElement,
    text: SharedString,
    placement: WatermarkPlacement,
    opacity: f32,
    color: Option<Hsla>,
    gap_x: Pixels,
    gap_y: Pixels,
    rotate_degrees: f32,
    z_index: i32,
    rows: usize,
    columns: usize,
}

impl Watermark {
    pub fn new(content: impl IntoElement, text: impl Into<SharedString>) -> Self {
        Self {
            content: content.into_any_element(),
            text: text.into(),
            placement: WatermarkPlacement::Cover,
            opacity: 0.16,
            color: None,
            gap_x: px(96.0),
            gap_y: px(72.0),
            rotate_degrees: -22.0,
            z_index: 10,
            rows: 4,
            columns: 4,
        }
    }

    pub fn placement(mut self, placement: WatermarkPlacement) -> Self {
        self.placement = placement;
        self
    }
    pub fn header(self) -> Self {
        self.placement(WatermarkPlacement::Header)
    }
    pub fn footer(self) -> Self {
        self.placement(WatermarkPlacement::Footer)
    }
    pub fn opacity(mut self, opacity: f32) -> Self {
        self.opacity = opacity.clamp(0.0, 1.0);
        self
    }
    pub fn color(mut self, color: Hsla) -> Self {
        self.color = Some(color);
        self
    }
    pub fn gap(mut self, x: impl Into<Pixels>, y: impl Into<Pixels>) -> Self {
        self.gap_x = x.into().max(px(8.0));
        self.gap_y = y.into().max(px(8.0));
        self
    }
    pub fn rotate(mut self, degrees: f32) -> Self {
        self.rotate_degrees = degrees;
        self
    }
    pub fn density(mut self, rows: usize, columns: usize) -> Self {
        self.rows = rows.max(1);
        self.columns = columns.max(1);
        self
    }
    pub fn z_index(mut self, z: i32) -> Self {
        self.z_index = z;
        self
    }
    pub fn tile_count(&self) -> usize {
        match self.placement {
            WatermarkPlacement::Cover => self.rows * self.columns,
            WatermarkPlacement::Header | WatermarkPlacement::Footer => self.columns,
        }
    }
}

impl RenderOnce for Watermark {
    fn render(self, _window: &mut Window, cx: &mut App) -> impl IntoElement {
        let theme = cx.global::<Config>().theme.clone();
        let color = self
            .color
            .unwrap_or(theme.neutral.text_3)
            .opacity(self.opacity);
        let count = self.tile_count();
        let overlay = div()
            .absolute()
            .top_0()
            .left_0()
            .right_0()
            .bottom_0()
            .overflow_hidden()
            .when(self.placement == WatermarkPlacement::Header, |s| {
                s.bottom_auto().h(px(72.0))
            })
            .when(self.placement == WatermarkPlacement::Footer, |s| {
                s.top_auto().h(px(72.0))
            })
            .child(
                div()
                    .flex()
                    .flex_wrap()
                    .gap_x(self.gap_x)
                    .gap_y(self.gap_y)
                    .p_4()
                    .children((0..count).map(|_| {
                        div()
                            .flex_none()
                            .min_w(px(120.0))
                            .text_sm()
                            .font_weight(gpui::FontWeight::BOLD)
                            .text_color(color)
                            .child(self.text.clone())
                            .into_any_element()
                    })),
            );
        div()
            .id(liora_core::unique_id("watermark"))
            .relative()
            .overflow_hidden()
            .child(self.content)
            .child(overlay)
            .child(
                div()
                    .absolute()
                    .right_2()
                    .bottom_1()
                    .text_xs()
                    .text_color(theme.neutral.text_3.opacity(0.5))
                    .child(format!("rotate {}°", self.rotate_degrees)),
            )
    }
}

impl IntoElement for Watermark {
    type Element = Component<Self>;
    fn into_element(self) -> Self::Element {
        Component::new(self)
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    #[test]
    fn watermark_tracks_density_and_opacity() {
        let watermark = Watermark::new("body", "CONFIDENTIAL")
            .density(3, 5)
            .opacity(2.0);
        assert_eq!(watermark.tile_count(), 15);
        assert_eq!(watermark.opacity, 1.0);
    }
    #[test]
    fn watermark_header_uses_columns_only() {
        let watermark = Watermark::new("body", "LIORA").header().density(8, 3);
        assert_eq!(watermark.tile_count(), 3);
    }
}