mirror of
https://github.com/servo/servo.git
synced 2025-08-03 20:50:07 +01:00
481 lines
22 KiB
Rust
481 lines
22 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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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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<%! from data import to_rust_ident %>
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<%namespace name="helpers" file="/helpers.mako.rs" />
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<% from data import ALL_SIZES, PHYSICAL_SIDES, LOGICAL_SIDES %>
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<% data.new_style_struct("Position", inherited=False) %>
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// "top" / "left" / "bottom" / "right"
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% for side in PHYSICAL_SIDES:
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${helpers.predefined_type(side, "LengthOrPercentageOrAuto",
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"computed::LengthOrPercentageOrAuto::Auto",
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spec="https://www.w3.org/TR/CSS2/visuren.html#propdef-%s" % side,
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animation_value_type="ComputedValue",
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allow_quirks=True)}
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% endfor
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// offset-* logical properties, map to "top" / "left" / "bottom" / "right"
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% for side in LOGICAL_SIDES:
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${helpers.predefined_type("offset-%s" % side, "LengthOrPercentageOrAuto",
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"computed::LengthOrPercentageOrAuto::Auto",
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spec="https://drafts.csswg.org/css-logical-props/#propdef-offset-%s" % side,
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animation_value_type="ComputedValue", logical=True)}
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% endfor
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#[cfg(feature = "gecko")]
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macro_rules! impl_align_conversions {
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($name: path) => {
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impl From<u8> for $name {
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fn from(bits: u8) -> $name {
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$name(::values::specified::align::AlignFlags::from_bits(bits)
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.expect("bits contain valid flag"))
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}
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}
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impl From<$name> for u8 {
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fn from(v: $name) -> u8 {
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v.0.bits()
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}
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}
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};
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}
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${helpers.predefined_type("z-index", "IntegerOrAuto",
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"Either::Second(Auto)",
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spec="https://www.w3.org/TR/CSS2/visuren.html#z-index",
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flags="CREATES_STACKING_CONTEXT",
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animation_value_type="ComputedValue")}
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// CSS Flexible Box Layout Module Level 1
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// http://www.w3.org/TR/css3-flexbox/
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// Flex container properties
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${helpers.single_keyword("flex-direction", "row row-reverse column column-reverse",
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spec="https://drafts.csswg.org/css-flexbox/#flex-direction-property",
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extra_prefixes="webkit", animation_value_type="discrete")}
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${helpers.single_keyword("flex-wrap", "nowrap wrap wrap-reverse",
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spec="https://drafts.csswg.org/css-flexbox/#flex-wrap-property",
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extra_prefixes="webkit", animation_value_type="discrete")}
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% if product == "servo":
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// FIXME: Update Servo to support the same Syntax as Gecko.
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${helpers.single_keyword("justify-content", "flex-start stretch flex-end center space-between space-around",
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extra_prefixes="webkit",
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spec="https://drafts.csswg.org/css-align/#propdef-justify-content",
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animation_value_type="discrete")}
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% else:
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${helpers.predefined_type(name="justify-content",
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type="AlignJustifyContent",
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initial_value="specified::AlignJustifyContent::normal()",
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spec="https://drafts.csswg.org/css-align/#propdef-justify-content",
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extra_prefixes="webkit",
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animation_value_type="discrete")}
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% endif
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% if product == "servo":
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// FIXME: Update Servo to support the same Syntax as Gecko.
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${helpers.single_keyword("align-content", "stretch flex-start flex-end center space-between space-around",
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extra_prefixes="webkit",
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spec="https://drafts.csswg.org/css-align/#propdef-align-content",
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animation_value_type="discrete")}
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${helpers.single_keyword("align-items",
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"stretch flex-start flex-end center baseline",
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extra_prefixes="webkit",
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spec="https://drafts.csswg.org/css-flexbox/#align-items-property",
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animation_value_type="discrete")}
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% else:
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${helpers.predefined_type(name="align-content",
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type="AlignJustifyContent",
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initial_value="specified::AlignJustifyContent::normal()",
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spec="https://drafts.csswg.org/css-align/#propdef-align-content",
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extra_prefixes="webkit",
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animation_value_type="discrete")}
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${helpers.predefined_type(name="align-items",
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type="AlignItems",
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initial_value="specified::AlignItems::normal()",
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spec="https://drafts.csswg.org/css-align/#propdef-align-items",
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extra_prefixes="webkit",
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animation_value_type="discrete")}
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#[cfg(feature = "gecko")]
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impl_align_conversions!(::values::specified::align::AlignItems);
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${helpers.predefined_type(name="justify-items",
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type="JustifyItems",
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initial_value="computed::JustifyItems::auto()",
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spec="https://drafts.csswg.org/css-align/#propdef-justify-items",
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animation_value_type="discrete")}
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#[cfg(feature = "gecko")]
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impl_align_conversions!(::values::specified::align::JustifyItems);
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% endif
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// Flex item properties
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${helpers.predefined_type("flex-grow", "NonNegativeNumber",
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"From::from(0.0)",
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spec="https://drafts.csswg.org/css-flexbox/#flex-grow-property",
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extra_prefixes="webkit",
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animation_value_type="NonNegativeNumber")}
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${helpers.predefined_type("flex-shrink", "NonNegativeNumber",
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"From::from(1.0)",
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spec="https://drafts.csswg.org/css-flexbox/#flex-shrink-property",
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extra_prefixes="webkit",
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animation_value_type="NonNegativeNumber")}
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// https://drafts.csswg.org/css-align/#align-self-property
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% if product == "servo":
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// FIXME: Update Servo to support the same syntax as Gecko.
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${helpers.single_keyword("align-self", "auto stretch flex-start flex-end center baseline",
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extra_prefixes="webkit",
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spec="https://drafts.csswg.org/css-flexbox/#propdef-align-self",
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animation_value_type="discrete")}
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% else:
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${helpers.predefined_type(name="align-self",
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type="AlignJustifySelf",
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initial_value="specified::AlignJustifySelf::auto()",
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spec="https://drafts.csswg.org/css-align/#align-self-property",
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extra_prefixes="webkit",
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animation_value_type="discrete")}
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${helpers.predefined_type(name="justify-self",
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type="AlignJustifySelf",
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initial_value="specified::AlignJustifySelf::auto()",
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spec="https://drafts.csswg.org/css-align/#justify-self-property",
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animation_value_type="discrete")}
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#[cfg(feature = "gecko")]
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impl_align_conversions!(::values::specified::align::AlignJustifySelf);
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% endif
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// https://drafts.csswg.org/css-flexbox/#propdef-order
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${helpers.predefined_type("order", "Integer", "0",
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extra_prefixes="webkit",
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animation_value_type="ComputedValue",
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spec="https://drafts.csswg.org/css-flexbox/#order-property")}
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// FIXME(emilio): All the sizes stuff, and the MozLength values should be
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// unified with Servo, or at least be less hacky.
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//
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// The block direction ones don't even accept extremum lengths during parsing,
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// and should be converted to just LengthOrPercentage.
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% if product == "gecko":
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// FIXME: Gecko doesn't support content value yet.
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${helpers.gecko_size_type("flex-basis", "MozLength", "auto()",
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logical=False,
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spec="https://drafts.csswg.org/css-flexbox/#flex-basis-property",
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extra_prefixes="webkit",
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animation_value_type="MozLength")}
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% else:
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// FIXME: This property should be animatable.
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${helpers.predefined_type("flex-basis",
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"FlexBasis",
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"computed::FlexBasis::auto()",
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spec="https://drafts.csswg.org/css-flexbox/#flex-basis-property",
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extra_prefixes="webkit",
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animation_value_type="none")}
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% endif
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% for (size, logical) in ALL_SIZES:
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<%
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spec = "https://drafts.csswg.org/css-box/#propdef-%s"
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if logical:
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spec = "https://drafts.csswg.org/css-logical-props/#propdef-%s"
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%>
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% if product == "gecko":
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// width, height, block-size, inline-size
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${helpers.gecko_size_type("%s" % size, "MozLength", "auto()",
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logical,
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spec=spec % size,
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animation_value_type="MozLength")}
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// min-width, min-height, min-block-size, min-inline-size,
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// max-width, max-height, max-block-size, max-inline-size
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${helpers.gecko_size_type("min-%s" % size, "MozLength", "auto()",
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logical,
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spec=spec % size,
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animation_value_type="MozLength")}
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${helpers.gecko_size_type("max-%s" % size, "MaxLength", "none()",
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logical,
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spec=spec % size,
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animation_value_type="MaxLength")}
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% else:
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// servo versions (no keyword support)
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${helpers.predefined_type("%s" % size,
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"LengthOrPercentageOrAuto",
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"computed::LengthOrPercentageOrAuto::Auto",
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"parse_non_negative",
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spec=spec % size,
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allow_quirks=not logical,
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animation_value_type="ComputedValue", logical = logical)}
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${helpers.predefined_type("min-%s" % size,
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"LengthOrPercentage",
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"computed::LengthOrPercentage::Length(computed::Length::new(0.))",
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"parse_non_negative",
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spec=spec % ("min-%s" % size),
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animation_value_type="ComputedValue",
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logical=logical,
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allow_quirks=not logical)}
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${helpers.predefined_type("max-%s" % size,
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"LengthOrPercentageOrNone",
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"computed::LengthOrPercentageOrNone::None",
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"parse_non_negative",
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spec=spec % ("min-%s" % size),
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animation_value_type="ComputedValue",
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logical=logical,
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allow_quirks=not logical)}
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% endif
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% endfor
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${helpers.single_keyword("box-sizing",
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"content-box border-box",
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extra_prefixes="moz webkit",
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spec="https://drafts.csswg.org/css-ui/#propdef-box-sizing",
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gecko_enum_prefix="StyleBoxSizing",
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custom_consts={ "content-box": "Content", "border-box": "Border" },
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animation_value_type="discrete")}
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${helpers.single_keyword("object-fit", "fill contain cover none scale-down",
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products="gecko", animation_value_type="discrete",
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spec="https://drafts.csswg.org/css-images/#propdef-object-fit")}
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${helpers.predefined_type("object-position",
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"Position",
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"computed::Position::zero()",
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products="gecko",
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boxed="True",
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spec="https://drafts.csswg.org/css-images-3/#the-object-position",
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animation_value_type="ComputedValue")}
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% for kind in ["row", "column"]:
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${helpers.predefined_type("grid-%s-gap" % kind,
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"NonNegativeLengthOrPercentage",
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"computed::NonNegativeLengthOrPercentage::zero()",
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spec="https://drafts.csswg.org/css-grid/#propdef-grid-%s-gap" % kind,
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animation_value_type="NonNegativeLengthOrPercentage",
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gecko_pref="layout.css.grid.enabled",
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products="gecko")}
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% for range in ["start", "end"]:
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${helpers.predefined_type("grid-%s-%s" % (kind, range),
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"GridLine",
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"Default::default()",
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animation_value_type="discrete",
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spec="https://drafts.csswg.org/css-grid/#propdef-grid-%s-%s" % (kind, range),
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products="gecko",
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gecko_pref="layout.css.grid.enabled",
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boxed=True)}
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% endfor
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// NOTE: According to the spec, this should handle multiple values of `<track-size>`,
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// but gecko supports only a single value
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${helpers.predefined_type("grid-auto-%ss" % kind,
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"TrackSize",
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"Default::default()",
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animation_value_type="discrete",
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spec="https://drafts.csswg.org/css-grid/#propdef-grid-auto-%ss" % kind,
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products="gecko",
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gecko_pref="layout.css.grid.enabled",
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boxed=True)}
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${helpers.predefined_type("grid-template-%ss" % kind,
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"GridTemplateComponent",
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"specified::GenericGridTemplateComponent::None",
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products="gecko",
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spec="https://drafts.csswg.org/css-grid/#propdef-grid-template-%ss" % kind,
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boxed=True,
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gecko_pref="layout.css.grid.enabled",
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animation_value_type="discrete")}
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% endfor
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${helpers.predefined_type("grid-auto-flow",
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"GridAutoFlow",
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initial_value="computed::GridAutoFlow::row()",
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products="gecko",
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animation_value_type="discrete",
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gecko_pref="layout.css.grid.enabled",
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spec="https://drafts.csswg.org/css-grid/#propdef-grid-auto-flow")}
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<%helpers:longhand name="grid-template-areas"
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spec="https://drafts.csswg.org/css-grid/#propdef-grid-template-areas"
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products="gecko"
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animation_value_type="discrete"
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gecko_pref="layout.css.grid.enabled"
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boxed="True">
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use hash::FnvHashMap;
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use std::fmt;
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use std::ops::Range;
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use str::HTML_SPACE_CHARACTERS;
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use style_traits::ToCss;
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pub mod computed_value {
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pub use super::SpecifiedValue as T;
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}
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pub type SpecifiedValue = Either<TemplateAreas, None_>;
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#[inline]
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pub fn get_initial_value() -> computed_value::T {
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Either::Second(None_)
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}
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pub fn parse<'i, 't>(context: &ParserContext, input: &mut Parser<'i, 't>)
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-> Result<SpecifiedValue, ParseError<'i>> {
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SpecifiedValue::parse(context, input)
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}
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#[cfg_attr(feature = "gecko", derive(MallocSizeOf))]
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#[derive(Clone, Debug, PartialEq)]
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pub struct TemplateAreas {
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pub areas: Box<[NamedArea]>,
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pub strings: Box<[Box<str>]>,
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pub width: u32,
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}
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#[cfg_attr(feature = "gecko", derive(MallocSizeOf))]
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#[derive(Clone, Debug, PartialEq)]
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pub struct NamedArea {
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pub name: Box<str>,
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pub rows: Range<u32>,
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pub columns: Range<u32>,
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}
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trivial_to_computed_value!(TemplateAreas);
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impl Parse for TemplateAreas {
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fn parse<'i, 't>(
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_context: &ParserContext,
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input: &mut Parser<'i, 't>,
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) -> Result<Self, ParseError<'i>> {
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let mut strings = vec![];
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while let Ok(string) = input.try(|i| i.expect_string().map(|s| s.as_ref().into())) {
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strings.push(string);
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}
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TemplateAreas::from_vec(strings)
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.map_err(|()| input.new_custom_error(StyleParseErrorKind::UnspecifiedError))
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}
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}
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impl TemplateAreas {
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pub fn from_vec(strings: Vec<Box<str>>) -> Result<TemplateAreas, ()> {
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if strings.is_empty() {
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return Err(());
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}
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let mut areas: Vec<NamedArea> = vec![];
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let mut width = 0;
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{
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let mut row = 0u32;
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let mut area_indices = FnvHashMap::<(&str), usize>::default();
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for string in &strings {
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let mut current_area_index: Option<usize> = None;
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row += 1;
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let mut column = 0u32;
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for token in Tokenizer(string) {
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column += 1;
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let token = if let Some(token) = token? {
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token
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} else {
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if let Some(index) = current_area_index.take() {
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if areas[index].columns.end != column {
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return Err(());
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}
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}
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continue;
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};
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if let Some(index) = current_area_index {
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if &*areas[index].name == token {
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if areas[index].rows.start == row {
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areas[index].columns.end += 1;
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}
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continue;
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}
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if areas[index].columns.end != column {
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return Err(());
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}
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}
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if let Some(index) = area_indices.get(token).cloned() {
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if areas[index].columns.start != column || areas[index].rows.end != row {
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return Err(());
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}
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areas[index].rows.end += 1;
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current_area_index = Some(index);
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continue;
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}
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let index = areas.len();
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areas.push(NamedArea {
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name: token.to_owned().into_boxed_str(),
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columns: column..(column + 1),
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rows: row..(row + 1),
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});
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assert!(area_indices.insert(token, index).is_none());
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current_area_index = Some(index);
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}
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if let Some(index) = current_area_index {
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if areas[index].columns.end != column + 1 {
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assert!(areas[index].rows.start != row);
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return Err(());
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}
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}
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if row == 1 {
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width = column;
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} else if width != column {
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return Err(());
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}
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}
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}
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Ok(TemplateAreas {
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areas: areas.into_boxed_slice(),
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strings: strings.into_boxed_slice(),
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width: width,
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})
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}
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}
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impl ToCss for TemplateAreas {
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fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
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for (i, string) in self.strings.iter().enumerate() {
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if i != 0 {
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dest.write_str(" ")?;
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}
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string.to_css(dest)?;
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}
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Ok(())
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}
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}
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struct Tokenizer<'a>(&'a str);
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impl<'a> Iterator for Tokenizer<'a> {
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type Item = Result<Option<(&'a str)>, ()>;
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fn next(&mut self) -> Option<Self::Item> {
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let rest = self.0.trim_left_matches(HTML_SPACE_CHARACTERS);
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if rest.is_empty() {
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return None;
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}
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if rest.starts_with('.') {
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self.0 = &rest[rest.find(|c| c != '.').unwrap_or(rest.len())..];
|
|
return Some(Ok(None));
|
|
}
|
|
if !rest.starts_with(is_name_code_point) {
|
|
return Some(Err(()));
|
|
}
|
|
let token_len = rest.find(|c| !is_name_code_point(c)).unwrap_or(rest.len());
|
|
let token = &rest[..token_len];
|
|
self.0 = &rest[token_len..];
|
|
Some(Ok(Some(token)))
|
|
}
|
|
}
|
|
|
|
fn is_name_code_point(c: char) -> bool {
|
|
c >= 'A' && c <= 'Z' || c >= 'a' && c <= 'z' ||
|
|
c >= '\u{80}' || c == '_' ||
|
|
c >= '0' && c <= '9' || c == '-'
|
|
}
|
|
</%helpers:longhand>
|