style: Move text-overflow outside of mako

components/layout/inline.rs

@@ -33,9 +33,10 @@ use std::sync::Arc;
 use style::computed_values::{display, overflow_x, position, text_align, text_justify};
 use style::computed_values::{vertical_align, white_space};
 use style::logical_geometry::{LogicalRect, LogicalSize, WritingMode};
-use style::properties::{longhands, ComputedValues};
+use style::properties::ComputedValues;
 use style::servo::restyle_damage::{BUBBLE_ISIZES, REFLOW, REFLOW_OUT_OF_FLOW, RESOLVE_GENERATED_CONTENT};
 use style::values::generics::box_::VerticalAlign;
+use style::values::specified::text::TextOverflowSide;
 use text;
 use traversal::PreorderFlowTraversal;
 use unicode_bidi as bidi;
@@ -714,15 +715,15 @@ impl LineBreaker {
 
         let ellipsis = match (&fragment.style().get_text().text_overflow.second,
             fragment.style().get_box().overflow_x) {
-            (&longhands::text_overflow::Side::Clip, _) | (_, overflow_x::T::visible) => None,
-            (&longhands::text_overflow::Side::Ellipsis, _) => {
+            (&TextOverflowSide::Clip, _) | (_, overflow_x::T::visible) => None,
+            (&TextOverflowSide::Ellipsis, _) => {
                 if fragment.margin_box_inline_size() > available_inline_size {
                     Some("…".to_string())
                 } else {
                     None
                 }
             },
-            (&longhands::text_overflow::Side::String(ref string), _) => {
+            (&TextOverflowSide::String(ref string), _) => {
                 if fragment.margin_box_inline_size() > available_inline_size {
                     Some(string.to_string())
                 } else {

components/style/properties/gecko.mako.rs

@@ -4729,13 +4729,13 @@ fn static_assert() {
 
     pub fn set_text_overflow(&mut self, v: longhands::text_overflow::computed_value::T) {
         use gecko_bindings::structs::nsStyleTextOverflowSide;
-        use properties::longhands::text_overflow::Side;
+        use values::specified::text::TextOverflowSide;
 
-        fn set(side: &mut nsStyleTextOverflowSide, value: &Side) {
+        fn set(side: &mut nsStyleTextOverflowSide, value: &TextOverflowSide) {
             let ty = match *value {
-                Side::Clip => structs::NS_STYLE_TEXT_OVERFLOW_CLIP,
-                Side::Ellipsis => structs::NS_STYLE_TEXT_OVERFLOW_ELLIPSIS,
-                Side::String(ref s) => {
+                TextOverflowSide::Clip => structs::NS_STYLE_TEXT_OVERFLOW_CLIP,
+                TextOverflowSide::Ellipsis => structs::NS_STYLE_TEXT_OVERFLOW_ELLIPSIS,
+                TextOverflowSide::String(ref s) => {
                     side.mString.assign_utf8(s);
                     structs::NS_STYLE_TEXT_OVERFLOW_STRING
                 }
@@ -4770,13 +4770,14 @@ fn static_assert() {
 
     pub fn clone_text_overflow(&self) -> longhands::text_overflow::computed_value::T {
         use gecko_bindings::structs::nsStyleTextOverflowSide;
-        use properties::longhands::text_overflow::Side;
+        use values::specified::text::TextOverflowSide;
 
-        fn to_servo(side: &nsStyleTextOverflowSide) -> Side {
+        fn to_servo(side: &nsStyleTextOverflowSide) -> TextOverflowSide {
             match side.mType as u32 {
-                structs::NS_STYLE_TEXT_OVERFLOW_CLIP => Side::Clip,
-                structs::NS_STYLE_TEXT_OVERFLOW_ELLIPSIS => Side::Ellipsis,
-                structs::NS_STYLE_TEXT_OVERFLOW_STRING => Side::String(side.mString.to_string().into_boxed_str()),
+                structs::NS_STYLE_TEXT_OVERFLOW_CLIP => TextOverflowSide::Clip,
+                structs::NS_STYLE_TEXT_OVERFLOW_ELLIPSIS => TextOverflowSide::Ellipsis,
+                structs::NS_STYLE_TEXT_OVERFLOW_STRING =>
+                    TextOverflowSide::String(side.mString.to_string().into_boxed_str()),
                 x => panic!("Found unexpected value in style struct for text_overflow property: {:?}", x),
             }
         }

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

@@ -12,126 +12,13 @@
                                              Method("has_overline", "bool"),
                                              Method("has_line_through", "bool")]) %>
 
-<%helpers:longhand name="text-overflow" animation_value_type="discrete" boxed="True"
-                   flags="APPLIES_TO_PLACEHOLDER"
-                   spec="https://drafts.csswg.org/css-ui/#propdef-text-overflow">
-    use std::fmt;
-    use style_traits::ToCss;
-
-
-    #[derive(Clone, Debug, Eq, MallocSizeOf, PartialEq, ToCss)]
-    pub enum Side {
-        Clip,
-        Ellipsis,
-        String(Box<str>),
-    }
-
-    #[derive(Clone, Debug, Eq, MallocSizeOf, PartialEq, ToCss)]
-    pub struct SpecifiedValue {
-        pub first: Side,
-        pub second: Option<Side>
-    }
-
-    pub mod computed_value {
-        pub use super::Side;
-
-        #[derive(Clone, Debug, MallocSizeOf, PartialEq)]
-        pub struct T {
-            // When the specified value only has one side, that's the "second"
-            // side, and the sides are logical, so "second" means "end".  The
-            // start side is Clip in that case.
-            //
-            // When the specified value has two sides, those are our "first"
-            // and "second" sides, and they are physical sides ("left" and
-            // "right").
-            pub first: Side,
-            pub second: Side,
-            pub sides_are_logical: bool
-        }
-    }
-
-    impl ToCss for computed_value::T {
-        fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
-            if self.sides_are_logical {
-                assert!(self.first == Side::Clip);
-                self.second.to_css(dest)?;
-            } else {
-                self.first.to_css(dest)?;
-                dest.write_str(" ")?;
-                self.second.to_css(dest)?;
-            }
-            Ok(())
-        }
-    }
-
-    impl ToComputedValue for SpecifiedValue {
-        type ComputedValue = computed_value::T;
-
-        #[inline]
-        fn to_computed_value(&self, _context: &Context) -> Self::ComputedValue {
-            if let Some(ref second) = self.second {
-                Self::ComputedValue { first: self.first.clone(),
-                                      second: second.clone(),
-                                      sides_are_logical: false }
-            } else {
-                Self::ComputedValue { first: Side::Clip,
-                                      second: self.first.clone(),
-                                      sides_are_logical: true }
-            }
-        }
-
-        #[inline]
-        fn from_computed_value(computed: &Self::ComputedValue) -> Self {
-            if computed.sides_are_logical {
-                assert!(computed.first == Side::Clip);
-                SpecifiedValue { first: computed.second.clone(),
-                                 second: None }
-            } else {
-                SpecifiedValue { first: computed.first.clone(),
-                                 second: Some(computed.second.clone()) }
-            }
-        }
-    }
-
-    #[inline]
-    pub fn get_initial_value() -> computed_value::T {
-        computed_value::T {
-            first: Side::Clip,
-            second: Side::Clip,
-            sides_are_logical: true,
-        }
-    }
-    pub fn parse<'i, 't>(context: &ParserContext, input: &mut Parser<'i, 't>)
-                         -> Result<SpecifiedValue, ParseError<'i>> {
-        let first = Side::parse(context, input)?;
-        let second = input.try(|input| Side::parse(context, input)).ok();
-        Ok(SpecifiedValue {
-            first: first,
-            second: second,
-        })
-    }
-    impl Parse for Side {
-        fn parse<'i, 't>(_context: &ParserContext, input: &mut Parser<'i, 't>)
-                         -> Result<Side, ParseError<'i>> {
-            let location = input.current_source_location();
-            match *input.next()? {
-                Token::Ident(ref ident) => {
-                    match_ignore_ascii_case! { ident,
-                        "clip" => Ok(Side::Clip),
-                        "ellipsis" => Ok(Side::Ellipsis),
-                        _ => Err(location.new_custom_error(
-                            SelectorParseErrorKind::UnexpectedIdent(ident.clone())
-                        ))
-                    }
-                }
-                Token::QuotedString(ref v) => {
-                    Ok(Side::String(v.as_ref().to_owned().into_boxed_str()))
-                }
-                ref t => Err(location.new_unexpected_token_error(t.clone())),
-            }
-        }
-    }
-</%helpers:longhand>
+${helpers.predefined_type("text-overflow",
+                          "TextOverflow",
+                          "computed::TextOverflow::get_initial_value()",
+                          animation_value_type="discrete",
+                          boxed=True,
+                          flags="APPLIES_TO_PLACEHOLDER",
+                          spec="https://drafts.csswg.org/css-ui/#propdef-text-overflow")}
 
 ${helpers.single_keyword("unicode-bidi",
                          "normal embed isolate bidi-override isolate-override plaintext",

components/style/values/computed/mod.rs

@@ -54,7 +54,7 @@ pub use self::percentage::Percentage;
 pub use self::position::Position;
 pub use self::svg::{SVGLength, SVGOpacity, SVGPaint, SVGPaintKind, SVGStrokeDashArray, SVGWidth};
 pub use self::table::XSpan;
-pub use self::text::{InitialLetter, LetterSpacing, LineHeight, WordSpacing};
+pub use self::text::{InitialLetter, LetterSpacing, LineHeight, TextOverflow, WordSpacing};
 pub use self::time::Time;
 pub use self::transform::{TimingFunction, TransformOrigin};
 

components/style/values/computed/text.rs

@@ -4,6 +4,8 @@
 
 //! Computed types for text properties.
 
+use std::fmt;
+use style_traits::ToCss;
 use values::{CSSInteger, CSSFloat};
 use values::animated::ToAnimatedZero;
 use values::computed::{NonNegativeLength, NonNegativeNumber};
@@ -11,6 +13,7 @@ use values::computed::length::{Length, LengthOrPercentage};
 use values::generics::text::InitialLetter as GenericInitialLetter;
 use values::generics::text::LineHeight as GenericLineHeight;
 use values::generics::text::Spacing;
+use values::specified::text::TextOverflowSide;
 
 /// A computed value for the `initial-letter` property.
 pub type InitialLetter = GenericInitialLetter<CSSFloat, CSSInteger>;
@@ -28,3 +31,46 @@ impl ToAnimatedZero for LineHeight {
     #[inline]
     fn to_animated_zero(&self) -> Result<Self, ()> { Err(()) }
 }
+
+#[derive(Clone, Debug, MallocSizeOf, PartialEq)]
+/// text-overflow.
+/// When the specified value only has one side, that's the "second"
+/// side, and the sides are logical, so "second" means "end".  The
+/// start side is Clip in that case.
+///
+/// When the specified value has two sides, those are our "first"
+/// and "second" sides, and they are physical sides ("left" and
+/// "right").
+pub struct TextOverflow {
+    /// First side
+    pub first: TextOverflowSide,
+    /// Second side
+    pub second: TextOverflowSide,
+    /// True if the specified value only has one side.
+    pub sides_are_logical: bool,
+}
+
+impl TextOverflow {
+    /// Returns the initial `text-overflow` value
+    pub fn get_initial_value() -> TextOverflow {
+        TextOverflow {
+            first: TextOverflowSide::Clip,
+            second: TextOverflowSide::Clip,
+            sides_are_logical: true,
+        }
+    }
+}
+
+impl ToCss for TextOverflow {
+    fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
+        if self.sides_are_logical {
+            debug_assert!(self.first == TextOverflowSide::Clip);
+            self.second.to_css(dest)?;
+        } else {
+            self.first.to_css(dest)?;
+            dest.write_str(" ")?;
+            self.second.to_css(dest)?;
+        }
+        Ok(())
+    }
+}

components/style/values/specified/mod.rs

@@ -50,7 +50,7 @@ pub use self::percentage::Percentage;
 pub use self::position::{Position, PositionComponent};
 pub use self::svg::{SVGLength, SVGOpacity, SVGPaint, SVGPaintKind, SVGStrokeDashArray, SVGWidth};
 pub use self::table::XSpan;
-pub use self::text::{InitialLetter, LetterSpacing, LineHeight, WordSpacing};
+pub use self::text::{InitialLetter, LetterSpacing, LineHeight, TextOverflow, WordSpacing};
 pub use self::time::Time;
 pub use self::transform::{TimingFunction, TransformOrigin};
 pub use super::generics::grid::GridTemplateComponent as GenericGridTemplateComponent;

components/style/values/specified/text.rs

@@ -4,13 +4,14 @@
 
 //! Specified types for text properties.
 
-use cssparser::Parser;
+use cssparser::{Parser, Token};
 use parser::{Parse, ParserContext};
 use selectors::parser::SelectorParseErrorKind;
 use std::ascii::AsciiExt;
 use style_traits::ParseError;
 use values::computed::{Context, ToComputedValue};
 use values::computed::text::LineHeight as ComputedLineHeight;
+use values::computed::text::TextOverflow as ComputedTextOverflow;
 use values::generics::text::InitialLetter as GenericInitialLetter;
 use values::generics::text::LineHeight as GenericLineHeight;
 use values::generics::text::Spacing;
@@ -154,3 +155,90 @@ impl ToComputedValue for LineHeight {
         }
     }
 }
+
+/// A generic value for the `text-overflow` property.
+#[derive(Clone, Debug, Eq, MallocSizeOf, PartialEq, ToCss)]
+pub enum TextOverflowSide {
+    /// Clip inline content.
+    Clip,
+    /// Render ellipsis to represent clipped inline content.
+    Ellipsis,
+    /// Render a given string to represent clipped inline content.
+    String(Box<str>),
+}
+
+impl Parse for TextOverflowSide {
+    fn parse<'i, 't>(_context: &ParserContext, input: &mut Parser<'i, 't>)
+                        -> Result<TextOverflowSide, ParseError<'i>> {
+        let location = input.current_source_location();
+        match *input.next()? {
+            Token::Ident(ref ident) => {
+                match_ignore_ascii_case! { ident,
+                    "clip" => Ok(TextOverflowSide::Clip),
+                    "ellipsis" => Ok(TextOverflowSide::Ellipsis),
+                    _ => Err(location.new_custom_error(
+                        SelectorParseErrorKind::UnexpectedIdent(ident.clone())
+                    ))
+                }
+            }
+            Token::QuotedString(ref v) => {
+                Ok(TextOverflowSide::String(v.as_ref().to_owned().into_boxed_str()))
+            }
+            ref t => Err(location.new_unexpected_token_error(t.clone())),
+        }
+    }
+}
+
+#[derive(Clone, Debug, Eq, MallocSizeOf, PartialEq, ToCss)]
+/// text-overflow. Specifies rendering when inline content overflows its line box edge.
+pub struct TextOverflow {
+    /// First value. Applies to end line box edge if no second is supplied; line-left edge otherwise.
+    pub first: TextOverflowSide,
+    /// Second value. Applies to the line-right edge if supplied.
+    pub second: Option<TextOverflowSide>,
+}
+
+impl Parse for TextOverflow {
+    fn parse<'i, 't>(context: &ParserContext, input: &mut Parser<'i, 't>) -> Result<TextOverflow, ParseError<'i>> {
+        let first = TextOverflowSide::parse(context, input)?;
+        let second = input.try(|input| TextOverflowSide::parse(context, input)).ok();
+        Ok(TextOverflow { first, second })
+    }
+}
+
+impl ToComputedValue for TextOverflow {
+    type ComputedValue = ComputedTextOverflow;
+
+    #[inline]
+    fn to_computed_value(&self, _context: &Context) -> Self::ComputedValue {
+        if let Some(ref second) = self.second {
+            Self::ComputedValue {
+                first: self.first.clone(),
+                second: second.clone(),
+                sides_are_logical: false,
+            }
+        } else {
+            Self::ComputedValue {
+                first: TextOverflowSide::Clip,
+                second: self.first.clone(),
+                sides_are_logical: true,
+            }
+        }
+    }
+
+    #[inline]
+    fn from_computed_value(computed: &Self::ComputedValue) -> Self {
+        if computed.sides_are_logical {
+            assert!(computed.first == TextOverflowSide::Clip);
+            TextOverflow {
+                first: computed.second.clone(),
+                second: None,
+            }
+        } else {
+            TextOverflow {
+                first: computed.first.clone(),
+                second: Some(computed.second.clone()),
+            }
+        }
+    }
+}