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
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */

//! Generic types for CSS values related to borders.

use crate::values::generics::rect::Rect;
use crate::values::generics::size::Size2D;
use crate::Zero;
use std::fmt::{self, Write};
use style_traits::{CssWriter, ToCss};

/// A generic value for a single side of a `border-image-width` property.
#[derive(
    Animate,
    Clone,
    ComputeSquaredDistance,
    Copy,
    Debug,
    MallocSizeOf,
    Parse,
    PartialEq,
    SpecifiedValueInfo,
    ToAnimatedValue,
    ToAnimatedZero,
    ToComputedValue,
    ToCss,
    ToResolvedValue,
    ToShmem,
)]
#[repr(C, u8)]
pub enum GenericBorderImageSideWidth<LP, N> {
    /// `<number>`
    ///
    /// NOTE: Numbers need to be before length-percentagess, in order to parse
    /// them first, since `0` should be a number, not the `0px` length.
    Number(N),
    /// `<length-or-percentage>`
    LengthPercentage(LP),
    /// `auto`
    Auto,
}

pub use self::GenericBorderImageSideWidth as BorderImageSideWidth;

/// A generic value for the `border-image-slice` property.
#[derive(
    Animate,
    Clone,
    ComputeSquaredDistance,
    Copy,
    Debug,
    MallocSizeOf,
    PartialEq,
    SpecifiedValueInfo,
    ToAnimatedValue,
    ToAnimatedZero,
    ToComputedValue,
    ToCss,
    ToResolvedValue,
    ToShmem,
)]
#[repr(C)]
pub struct GenericBorderImageSlice<NumberOrPercentage> {
    /// The offsets.
    #[css(field_bound)]
    pub offsets: Rect<NumberOrPercentage>,
    /// Whether to fill the middle part.
    #[animation(constant)]
    #[css(represents_keyword)]
    pub fill: bool,
}

pub use self::GenericBorderImageSlice as BorderImageSlice;

/// A generic value for the `border-*-radius` longhand properties.
#[derive(
    Animate,
    Clone,
    ComputeSquaredDistance,
    Copy,
    Debug,
    Deserialize,
    MallocSizeOf,
    PartialEq,
    SpecifiedValueInfo,
    Serialize,
    ToAnimatedValue,
    ToAnimatedZero,
    ToComputedValue,
    ToCss,
    ToResolvedValue,
    ToShmem,
)]
#[repr(C)]
pub struct GenericBorderCornerRadius<L>(
    #[css(field_bound)]
    #[shmem(field_bound)]
    pub Size2D<L>,
);

pub use self::GenericBorderCornerRadius as BorderCornerRadius;

impl<L> BorderCornerRadius<L> {
    /// Trivially create a `BorderCornerRadius`.
    pub fn new(w: L, h: L) -> Self {
        BorderCornerRadius(Size2D::new(w, h))
    }
}

impl<L: Zero> Zero for BorderCornerRadius<L> {
    fn zero() -> Self {
        BorderCornerRadius(Size2D::zero())
    }

    fn is_zero(&self) -> bool {
        self.0.is_zero()
    }
}

/// A generic value for the `border-spacing` property.
#[derive(
    Animate,
    Clone,
    ComputeSquaredDistance,
    Copy,
    Debug,
    MallocSizeOf,
    PartialEq,
    SpecifiedValueInfo,
    ToAnimatedValue,
    ToAnimatedZero,
    ToComputedValue,
    ToCss,
    ToResolvedValue,
    ToShmem,
)]
#[repr(transparent)]
pub struct GenericBorderSpacing<L>(
    #[css(field_bound)]
    #[shmem(field_bound)]
    pub Size2D<L>,
);

pub use self::GenericBorderSpacing as BorderSpacing;
impl<L> BorderSpacing<L> {
    /// Trivially create a `BorderCornerRadius`.
    pub fn new(w: L, h: L) -> Self {
        BorderSpacing(Size2D::new(w, h))
    }
}

/// A generic value for `border-radius` and `inset()`.
///
/// <https://drafts.csswg.org/css-backgrounds-3/#border-radius>
#[derive(
    Animate,
    Clone,
    ComputeSquaredDistance,
    Copy,
    Debug,
    Deserialize,
    MallocSizeOf,
    PartialEq,
    SpecifiedValueInfo,
    Serialize,
    ToAnimatedValue,
    ToComputedValue,
    ToResolvedValue,
    ToShmem,
)]
#[repr(C)]
pub struct GenericBorderRadius<LengthPercentage> {
    /// The top left radius.
    #[shmem(field_bound)]
    pub top_left: GenericBorderCornerRadius<LengthPercentage>,
    /// The top right radius.
    pub top_right: GenericBorderCornerRadius<LengthPercentage>,
    /// The bottom right radius.
    pub bottom_right: GenericBorderCornerRadius<LengthPercentage>,
    /// The bottom left radius.
    pub bottom_left: GenericBorderCornerRadius<LengthPercentage>,
}

pub use self::GenericBorderRadius as BorderRadius;

impl<L> BorderRadius<L> {
    /// Returns a new `BorderRadius<L>`.
    #[inline]
    pub fn new(
        tl: BorderCornerRadius<L>,
        tr: BorderCornerRadius<L>,
        br: BorderCornerRadius<L>,
        bl: BorderCornerRadius<L>,
    ) -> Self {
        BorderRadius {
            top_left: tl,
            top_right: tr,
            bottom_right: br,
            bottom_left: bl,
        }
    }

    /// Serialises two given rects following the syntax of the `border-radius``
    /// property.
    pub fn serialize_rects<W>(
        widths: Rect<&L>,
        heights: Rect<&L>,
        dest: &mut CssWriter<W>,
    ) -> fmt::Result
    where
        L: PartialEq + ToCss,
        W: Write,
    {
        widths.to_css(dest)?;
        if widths != heights {
            dest.write_str(" / ")?;
            heights.to_css(dest)?;
        }
        Ok(())
    }
}

impl<L: Zero> Zero for BorderRadius<L> {
    fn zero() -> Self {
        Self::new(
            BorderCornerRadius::<L>::zero(),
            BorderCornerRadius::<L>::zero(),
            BorderCornerRadius::<L>::zero(),
            BorderCornerRadius::<L>::zero(),
        )
    }

    fn is_zero(&self) -> bool {
        self.top_left.is_zero() &&
            self.top_right.is_zero() &&
            self.bottom_right.is_zero() &&
            self.bottom_left.is_zero()
    }
}

impl<L> ToCss for BorderRadius<L>
where
    L: PartialEq + ToCss,
{
    fn to_css<W>(&self, dest: &mut CssWriter<W>) -> fmt::Result
    where
        W: Write,
    {
        let BorderRadius {
            top_left: BorderCornerRadius(ref tl),
            top_right: BorderCornerRadius(ref tr),
            bottom_right: BorderCornerRadius(ref br),
            bottom_left: BorderCornerRadius(ref bl),
        } = *self;

        let widths = Rect::new(&tl.width, &tr.width, &br.width, &bl.width);
        let heights = Rect::new(&tl.height, &tr.height, &br.height, &bl.height);

        Self::serialize_rects(widths, heights, dest)
    }
}