style: Rename the properties directories from "shorthand" to "shorthands", "longhand" to "longhands".

Bug: 1468651
Reviewed-by: heycam
MozReview-Commit-ID: CY4THCC4zkX

components/style/properties/shorthands/text.mako.rs

@@ -0,0 +1,85 @@
+/* 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 http://mozilla.org/MPL/2.0/. */
+
+<%namespace name="helpers" file="/helpers.mako.rs" />
+
+<%helpers:shorthand name="text-decoration"
+                    sub_properties="text-decoration-line
+                    ${' text-decoration-style text-decoration-color' if product == 'gecko' else ''}"
+                    spec="https://drafts.csswg.org/css-text-decor/#propdef-text-decoration">
+
+    % if product == "gecko":
+        use values::specified;
+        use properties::longhands::{text_decoration_line, text_decoration_style, text_decoration_color};
+    % else:
+        use properties::longhands::text_decoration_line;
+    % endif
+
+    pub fn parse_value<'i, 't>(
+        context: &ParserContext,
+        input: &mut Parser<'i, 't>,
+    ) -> Result<Longhands, ParseError<'i>> {
+        % if product == "gecko":
+            let (mut line, mut style, mut color, mut any) = (None, None, None, false);
+        % else:
+            let (mut line, mut any) = (None, false);
+        % endif
+
+        loop {
+            macro_rules! parse_component {
+                ($value:ident, $module:ident) => (
+                    if $value.is_none() {
+                        if let Ok(value) = input.try(|input| $module::parse(context, input)) {
+                            $value = Some(value);
+                            any = true;
+                            continue;
+                        }
+                    }
+                )
+            }
+
+            parse_component!(line, text_decoration_line);
+
+            % if product == "gecko":
+                parse_component!(style, text_decoration_style);
+                parse_component!(color, text_decoration_color);
+            % endif
+
+            break;
+        }
+
+        if !any {
+            return Err(input.new_custom_error(StyleParseErrorKind::UnspecifiedError));
+        }
+
+        Ok(expanded! {
+            text_decoration_line: unwrap_or_initial!(text_decoration_line, line),
+
+            % if product == "gecko":
+                text_decoration_style: unwrap_or_initial!(text_decoration_style, style),
+                text_decoration_color: unwrap_or_initial!(text_decoration_color, color),
+            % endif
+        })
+    }
+
+    impl<'a> ToCss for LonghandsToSerialize<'a>  {
+        fn to_css<W>(&self, dest: &mut CssWriter<W>) -> fmt::Result where W: fmt::Write {
+            self.text_decoration_line.to_css(dest)?;
+
+            % if product == "gecko":
+                if *self.text_decoration_style != text_decoration_style::SpecifiedValue::Solid {
+                    dest.write_str(" ")?;
+                    self.text_decoration_style.to_css(dest)?;
+                }
+
+                if *self.text_decoration_color != specified::Color::CurrentColor {
+                    dest.write_str(" ")?;
+                    self.text_decoration_color.to_css(dest)?;
+                }
+            % endif
+
+            Ok(())
+        }
+    }
+</%helpers:shorthand>