зеркало из https://github.com/mozilla/gecko-dev.git
servo: Merge #10959 - Support color-typed properties in geckolib (from heycam:color); r=bholley
This is on top of https://github.com/servo/servo/pull/10957 though I'm not sure how to make that PR's commits not appear in this one. r? @bholley Source-Repo: https://github.com/servo/servo Source-Revision: 1a1ea30f8c36a5dd01717fbf2294707f5d78c377
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@ -20,6 +20,7 @@
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<%call expr="longhand(name, predefined_type=type, **kwargs)">
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#[allow(unused_imports)]
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use app_units::Au;
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use cssparser::{Color as CSSParserColor, RGBA};
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pub type SpecifiedValue = specified::${type};
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pub mod computed_value {
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pub use values::computed::${type} as T;
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@ -15,12 +15,27 @@ ${helpers.single_keyword("vector-effect", "none non-scaling-stroke", products="g
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// Section 13 - Gradients and Patterns
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${helpers.predefined_type(
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"stop-color", "CSSColor",
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"CSSParserColor::RGBA(RGBA { red: 0.0, green: 0.0, blue: 0.0, alpha: 1.0 })",
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products="gecko")}
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${helpers.predefined_type("stop-opacity", "Opacity", "1.0", products="gecko")}
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// Section 15 - Filter Effects
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${helpers.predefined_type(
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"flood-color", "CSSColor",
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"CSSParserColor::RGBA(RGBA { red: 0.0, green: 0.0, blue: 0.0, alpha: 1.0 })",
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products="gecko")}
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${helpers.predefined_type("flood-opacity", "Opacity", "1.0", products="gecko")}
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${helpers.predefined_type(
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"lighting-color", "CSSColor",
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"CSSParserColor::RGBA(RGBA { red: 1.0, green: 1.0, blue: 1.0, alpha: 1.0 })",
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products="gecko")}
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// CSS Masking Module Level 1
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// https://www.w3.org/TR/css-masking-1/
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${helpers.single_keyword("mask-type", "luminance alpha", products="gecko")}
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@ -107,3 +107,8 @@ ${helpers.single_keyword("unicode-bidi", "normal embed isolate bidi-override iso
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${helpers.single_keyword("text-decoration-style",
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"-moz-none solid double dotted dashed wavy",
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products="gecko")}
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${helpers.predefined_type(
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"text-decoration-color", "CSSColor",
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"CSSParserColor::RGBA(RGBA { red: 0.0, green: 0.0, blue: 0.0, alpha: 1.0 })",
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products="gecko")}
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@ -29,7 +29,7 @@ use style::properties::longhands;
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use style::properties::make_cascade_vec;
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use style::properties::style_struct_traits::*;
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use gecko_style_structs::{nsStyleUnion, nsStyleUnit};
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use values::ToGeckoStyleCoord;
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use values::{ToGeckoStyleCoord, convert_rgba_to_nscolor, convert_nscolor_to_rgba};
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#[derive(Clone)]
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pub struct GeckoComputedValues {
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@ -184,6 +184,59 @@ def set_gecko_property(ffi_name, expr):
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}
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</%def>
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<%def name="clear_color_flags(color_flags_ffi_name)">
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% if color_flags_ffi_name:
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self.gecko.${color_flags_ffi_name} &= !(gecko_style_structs::BORDER_COLOR_SPECIAL as u8);
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% endif
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</%def>
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<%def name="set_current_color_flag(color_flags_ffi_name)">
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% if color_flags_ffi_name:
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self.gecko.${color_flags_ffi_name} |= gecko_style_structs::BORDER_COLOR_FOREGROUND as u8;
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% else:
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// FIXME(heycam): This is a Gecko property that doesn't store currentColor
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// as a computed value. These are currently handled by converting
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// currentColor to the current value of the color property at computed
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// value time, but we don't have access to the Color struct here.
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// In the longer term, Gecko should store currentColor as a computed
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// value, so that we don't need to do this:
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// https://bugzilla.mozilla.org/show_bug.cgi?id=760345
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unimplemented!();
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% endif
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</%def>
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<%def name="get_current_color_flag_from(field)">
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(${field} & (gecko_style_structs::BORDER_COLOR_FOREGROUND as u8)) != 0
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</%def>
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<%def name="impl_color_setter(ident, gecko_ffi_name, color_flags_ffi_name=None)">
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#[allow(unreachable_code)]
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fn set_${ident}(&mut self, v: longhands::${ident}::computed_value::T) {
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use cssparser::Color;
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${clear_color_flags(color_flags_ffi_name)}
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let result = match v {
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Color::CurrentColor => {
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${set_current_color_flag(color_flags_ffi_name)}
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0
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},
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Color::RGBA(rgba) => convert_rgba_to_nscolor(&rgba),
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};
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${set_gecko_property(gecko_ffi_name, "result")}
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}
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</%def>
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<%def name="impl_color_copy(ident, gecko_ffi_name, color_flags_ffi_name=None)">
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fn copy_${ident}_from(&mut self, other: &Self) {
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% if color_flags_ffi_name:
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${clear_color_flags(color_flags_ffi_name)}
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if ${get_current_color_flag_from("other.gecko." + color_flags_ffi_name)} {
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${set_current_color_flag(color_flags_ffi_name)}
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}
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% endif
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self.gecko.${gecko_ffi_name} = other.gecko.${gecko_ffi_name};
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}
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</%def>
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<%def name="impl_keyword(ident, gecko_ffi_name, keyword, need_clone)">
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<%call expr="impl_keyword_setter(ident, gecko_ffi_name, keyword)"></%call>
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<%call expr="impl_simple_copy(ident, gecko_ffi_name)"></%call>
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@ -197,6 +250,11 @@ def set_gecko_property(ffi_name, expr):
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<%call expr="impl_simple_copy(ident, gecko_ffi_name)"></%call>
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</%def>
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<%def name="impl_color(ident, gecko_ffi_name, color_flags_ffi_name=None)">
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<%call expr="impl_color_setter(ident, gecko_ffi_name, color_flags_ffi_name)"></%call>
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<%call expr="impl_color_copy(ident, gecko_ffi_name, color_flags_ffi_name)"></%call>
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</%def>
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<%def name="impl_app_units(ident, gecko_ffi_name, need_clone)">
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fn set_${ident}(&mut self, v: longhands::${ident}::computed_value::T) {
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self.gecko.${gecko_ffi_name} = v.0;
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@ -274,7 +332,8 @@ impl Debug for ${style_struct.gecko_ffi_name} {
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<%def name="raw_impl_trait(style_struct, skip_longhands='', skip_additionals='')">
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<%
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longhands = [x for x in style_struct.longhands if not x.name in skip_longhands.split()]
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longhands = [x for x in style_struct.longhands
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if not (skip_longhands == "*" or x.name in skip_longhands.split())]
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#
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# Make a list of types we can't auto-generate.
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@ -376,7 +435,8 @@ fn static_assert() {
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<% border_style_keyword = Keyword("border-style",
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"none solid double dotted dashed hidden groove ridge inset outset") %>
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<% skip_border_longhands = " ".join(["border-{0}-style border-{0}-width ".format(x.ident) for x in SIDES]) %>
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<% skip_border_longhands = " ".join(["border-{0}-color border-{0}-style border-{0}-width ".format(x.ident)
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for x in SIDES]) %>
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<%self:impl_trait style_struct_name="Border"
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skip_longhands="${skip_border_longhands}"
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skip_additionals="*">
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@ -385,6 +445,9 @@ fn static_assert() {
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<% impl_keyword("border_%s_style" % side.ident, "mBorderStyle[%s]" % side.index, border_style_keyword,
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need_clone=True) %>
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<% impl_color("border_%s_color" % side.ident, "mBorderColor[%s]" % side.index,
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color_flags_ffi_name="mBorderStyle[%s]" % side.index) %>
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<% impl_app_units("border_%s_width" % side.ident, "mComputedBorder.%s" % side.ident, need_clone=False) %>
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fn border_${side.ident}_has_nonzero_width(&self) -> bool {
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@ -414,11 +477,13 @@ fn static_assert() {
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</%self:impl_trait>
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<%self:impl_trait style_struct_name="Outline"
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skip_longhands="outline-style"
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skip_longhands="outline-color outline-style"
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skip_additionals="*">
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<% impl_keyword("outline_style", "mOutlineStyle", border_style_keyword, need_clone=True) %>
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<% impl_color("outline_color", "mOutlineColor", color_flags_ffi_name="mOutlineStyle") %>
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fn outline_has_nonzero_width(&self) -> bool {
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self.gecko.mCachedOutlineWidth != 0
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}
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@ -484,6 +549,61 @@ fn static_assert() {
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</%self:impl_trait>
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<%self:impl_trait style_struct_name="Background" skip_longhands="background-color" skip_additionals="*">
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<% impl_color("background_color", "mBackgroundColor") %>
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</%self:impl_trait>
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<%self:impl_trait style_struct_name="Text"
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skip_longhands="text-decoration-color"
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skip_additionals="*">
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<% impl_color("text_decoration_color", "mTextDecorationColor",
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color_flags_ffi_name="mTextDecorationStyle") %>
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fn has_underline(&self) -> bool {
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use gecko_style_structs as gss;
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(self.gecko.mTextDecorationStyle & (gss::NS_STYLE_TEXT_DECORATION_LINE_UNDERLINE as u8)) != 0
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}
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fn has_overline(&self) -> bool {
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use gecko_style_structs as gss;
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(self.gecko.mTextDecorationStyle & (gss::NS_STYLE_TEXT_DECORATION_LINE_OVERLINE as u8)) != 0
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}
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fn has_line_through(&self) -> bool {
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use gecko_style_structs as gss;
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(self.gecko.mTextDecorationStyle & (gss::NS_STYLE_TEXT_DECORATION_LINE_LINE_THROUGH as u8)) != 0
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}
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</%self:impl_trait>
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<%self:impl_trait style_struct_name="SVG"
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skip_longhands="flood-color lighting-color stop-color"
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skip_additionals="*">
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<% impl_color("flood_color", "mFloodColor") %>
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<% impl_color("lighting_color", "mLightingColor") %>
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<% impl_color("stop_color", "mStopColor") %>
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</%self:impl_trait>
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<%self:impl_trait style_struct_name="Color"
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skip_longhands="*">
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fn set_color(&mut self, v: longhands::color::computed_value::T) {
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let result = convert_rgba_to_nscolor(&v);
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${set_gecko_property("mColor", "result")}
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}
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<%call expr="impl_simple_copy('color', 'mColor')"></%call>
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fn clone_color(&self) -> longhands::color::computed_value::T {
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let color = ${get_gecko_property("mColor")} as u32;
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convert_nscolor_to_rgba(color)
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}
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</%self:impl_trait>
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<%def name="define_ffi_struct_accessor(style_struct)">
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#[no_mangle]
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#[allow(non_snake_case, unused_variables)]
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@ -2,6 +2,7 @@
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use cssparser::RGBA;
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use gecko_style_structs::{nsStyleUnion, nsStyleUnit};
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use style::values::computed::{LengthOrPercentage, LengthOrPercentageOrAuto};
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@ -44,3 +45,19 @@ impl ToGeckoStyleCoord for LengthOrPercentageOrAuto {
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};
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}
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}
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pub fn convert_rgba_to_nscolor(rgba: &RGBA) -> u32 {
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(((rgba.alpha * 255.0).round() as u32) << 24) |
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(((rgba.blue * 255.0).round() as u32) << 16) |
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(((rgba.green * 255.0).round() as u32) << 8) |
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((rgba.red * 255.0).round() as u32)
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}
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pub fn convert_nscolor_to_rgba(color: u32) -> RGBA {
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RGBA {
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red: ((color & 0xff) as f32) / 255.0,
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green: (((color >> 8) & 0xff) as f32) / 255.0,
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blue: (((color >> 16) & 0xff) as f32) / 255.0,
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alpha: (((color >> 24) & 0xff) as f32) / 255.0,
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}
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}
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