style/values/specified/
ui.rs

1/* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
4
5//! Specified types for UI properties.
6
7use crate::derives::*;
8use crate::parser::{Parse, ParserContext};
9use crate::values::generics::ui as generics;
10use crate::values::specified::color::Color;
11use crate::values::specified::image::Image;
12use crate::values::specified::Number;
13use cssparser::Parser;
14use std::fmt::{self, Write};
15use style_traits::{
16    CssWriter, KeywordsCollectFn, ParseError, SpecifiedValueInfo, StyleParseErrorKind, ToCss,
17};
18
19/// A specified value for the `cursor` property.
20pub type Cursor = generics::GenericCursor<CursorImage>;
21
22/// A specified value for item of `image cursors`.
23pub type CursorImage = generics::GenericCursorImage<Image, Number>;
24
25impl Parse for Cursor {
26    /// cursor: [<url> [<number> <number>]?]# [auto | default | ...]
27    fn parse<'i, 't>(
28        context: &ParserContext,
29        input: &mut Parser<'i, 't>,
30    ) -> Result<Self, ParseError<'i>> {
31        let mut images = vec![];
32        loop {
33            match input.try_parse(|input| CursorImage::parse(context, input)) {
34                Ok(image) => images.push(image),
35                Err(_) => break,
36            }
37            input.expect_comma()?;
38        }
39        Ok(Self {
40            images: images.into(),
41            keyword: CursorKind::parse(input)?,
42        })
43    }
44}
45
46impl Parse for CursorImage {
47    fn parse<'i, 't>(
48        context: &ParserContext,
49        input: &mut Parser<'i, 't>,
50    ) -> Result<Self, ParseError<'i>> {
51        use crate::Zero;
52
53        let image = Image::parse_only_url(context, input)?;
54        let mut has_hotspot = false;
55        let mut hotspot_x = Number::zero();
56        let mut hotspot_y = Number::zero();
57
58        if let Ok(x) = input.try_parse(|input| Number::parse(context, input)) {
59            has_hotspot = true;
60            hotspot_x = x;
61            hotspot_y = Number::parse(context, input)?;
62        }
63
64        Ok(Self {
65            image,
66            has_hotspot,
67            hotspot_x,
68            hotspot_y,
69        })
70    }
71}
72
73// This trait is manually implemented because we don't support the whole <image>
74// syntax for cursors
75impl SpecifiedValueInfo for CursorImage {
76    fn collect_completion_keywords(f: KeywordsCollectFn) {
77        f(&["url", "image-set"]);
78    }
79}
80/// Specified value of `-moz-force-broken-image-icon`
81#[derive(
82    Clone,
83    Copy,
84    Debug,
85    MallocSizeOf,
86    PartialEq,
87    SpecifiedValueInfo,
88    ToComputedValue,
89    ToResolvedValue,
90    ToShmem,
91    ToTyped,
92)]
93#[repr(transparent)]
94pub struct BoolInteger(pub bool);
95
96impl BoolInteger {
97    /// Returns 0
98    #[inline]
99    pub fn zero() -> Self {
100        Self(false)
101    }
102}
103
104impl Parse for BoolInteger {
105    fn parse<'i, 't>(
106        _context: &ParserContext,
107        input: &mut Parser<'i, 't>,
108    ) -> Result<Self, ParseError<'i>> {
109        // We intentionally don't support calc values here.
110        match input.expect_integer()? {
111            0 => Ok(Self(false)),
112            1 => Ok(Self(true)),
113            _ => Err(input.new_custom_error(StyleParseErrorKind::UnspecifiedError)),
114        }
115    }
116}
117
118impl ToCss for BoolInteger {
119    fn to_css<W>(&self, dest: &mut CssWriter<W>) -> fmt::Result
120    where
121        W: Write,
122    {
123        dest.write_str(if self.0 { "1" } else { "0" })
124    }
125}
126
127/// A specified value for `scrollbar-color` property
128pub type ScrollbarColor = generics::ScrollbarColor<Color>;
129
130impl Parse for ScrollbarColor {
131    fn parse<'i, 't>(
132        context: &ParserContext,
133        input: &mut Parser<'i, 't>,
134    ) -> Result<Self, ParseError<'i>> {
135        if input.try_parse(|i| i.expect_ident_matching("auto")).is_ok() {
136            return Ok(generics::ScrollbarColor::Auto);
137        }
138        Ok(generics::ScrollbarColor::Colors {
139            thumb: Color::parse(context, input)?,
140            track: Color::parse(context, input)?,
141        })
142    }
143}
144
145/// The specified value for the `user-select` property.
146///
147/// https://drafts.csswg.org/css-ui-4/#propdef-user-select
148#[allow(missing_docs)]
149#[derive(
150    Clone,
151    Copy,
152    Debug,
153    Eq,
154    MallocSizeOf,
155    Parse,
156    PartialEq,
157    SpecifiedValueInfo,
158    ToComputedValue,
159    ToCss,
160    ToResolvedValue,
161    ToShmem,
162    ToTyped,
163)]
164#[repr(u8)]
165pub enum UserSelect {
166    Auto,
167    Text,
168    #[parse(aliases = "-moz-none")]
169    None,
170    /// Force selection of all children.
171    All,
172}
173
174/// The keywords allowed in the Cursor property.
175///
176/// https://drafts.csswg.org/css-ui-4/#propdef-cursor
177#[allow(missing_docs)]
178#[derive(
179    Clone,
180    Copy,
181    Debug,
182    Eq,
183    FromPrimitive,
184    MallocSizeOf,
185    Parse,
186    PartialEq,
187    SpecifiedValueInfo,
188    ToComputedValue,
189    ToCss,
190    ToResolvedValue,
191    ToShmem,
192)]
193#[repr(u8)]
194pub enum CursorKind {
195    None,
196    Default,
197    Pointer,
198    ContextMenu,
199    Help,
200    Progress,
201    Wait,
202    Cell,
203    Crosshair,
204    Text,
205    VerticalText,
206    Alias,
207    Copy,
208    Move,
209    NoDrop,
210    NotAllowed,
211    #[parse(aliases = "-moz-grab")]
212    Grab,
213    #[parse(aliases = "-moz-grabbing")]
214    Grabbing,
215    EResize,
216    NResize,
217    NeResize,
218    NwResize,
219    SResize,
220    SeResize,
221    SwResize,
222    WResize,
223    EwResize,
224    NsResize,
225    NeswResize,
226    NwseResize,
227    ColResize,
228    RowResize,
229    AllScroll,
230    #[parse(aliases = "-moz-zoom-in")]
231    ZoomIn,
232    #[parse(aliases = "-moz-zoom-out")]
233    ZoomOut,
234    Auto,
235}
236
237/// The keywords allowed in the -moz-theme property.
238#[derive(
239    Clone,
240    Copy,
241    Debug,
242    Eq,
243    FromPrimitive,
244    MallocSizeOf,
245    Parse,
246    PartialEq,
247    SpecifiedValueInfo,
248    ToComputedValue,
249    ToCss,
250    ToResolvedValue,
251    ToShmem,
252    ToTyped,
253)]
254#[repr(u8)]
255pub enum MozTheme {
256    /// Choose the default (maybe native) rendering.
257    Auto,
258    /// Choose the non-native rendering.
259    NonNative,
260}
261
262/// The pointer-events property
263/// https://svgwg.org/svg2-draft/interact.html#PointerEventsProperty
264#[allow(missing_docs)]
265#[derive(
266    Clone,
267    Copy,
268    Debug,
269    Eq,
270    FromPrimitive,
271    MallocSizeOf,
272    Parse,
273    PartialEq,
274    SpecifiedValueInfo,
275    ToComputedValue,
276    ToCss,
277    ToResolvedValue,
278    ToShmem,
279    ToTyped,
280)]
281#[repr(u8)]
282pub enum PointerEvents {
283    Auto,
284    None,
285    #[cfg(feature = "gecko")]
286    Visiblepainted,
287    #[cfg(feature = "gecko")]
288    Visiblefill,
289    #[cfg(feature = "gecko")]
290    Visiblestroke,
291    #[cfg(feature = "gecko")]
292    Visible,
293    #[cfg(feature = "gecko")]
294    Painted,
295    #[cfg(feature = "gecko")]
296    Fill,
297    #[cfg(feature = "gecko")]
298    Stroke,
299    #[cfg(feature = "gecko")]
300    All,
301}
302
303/// Internal property to represent the inert attribute state:
304/// https://html.spec.whatwg.org/multipage/#inert-subtrees
305#[allow(missing_docs)]
306#[derive(
307    Clone,
308    Copy,
309    Debug,
310    Eq,
311    FromPrimitive,
312    MallocSizeOf,
313    Parse,
314    PartialEq,
315    SpecifiedValueInfo,
316    ToComputedValue,
317    ToCss,
318    ToResolvedValue,
319    ToShmem,
320    ToTyped,
321)]
322#[repr(u8)]
323pub enum Inert {
324    None,
325    Inert,
326}
327
328/// Internal -moz-user-focus property.
329/// https://developer.mozilla.org/en-US/docs/Web/CSS/-moz-user-focus
330#[allow(missing_docs)]
331#[derive(
332    Clone,
333    Copy,
334    Debug,
335    Eq,
336    FromPrimitive,
337    MallocSizeOf,
338    Parse,
339    PartialEq,
340    SpecifiedValueInfo,
341    ToComputedValue,
342    ToCss,
343    ToResolvedValue,
344    ToShmem,
345    ToTyped,
346)]
347#[repr(u8)]
348pub enum UserFocus {
349    Normal,
350    None,
351    Ignore,
352}
style/values/specified/ui.rs

style/values/specified/
ui.rs
