style: Add GETCS_NEEDS_LAYOUT_FLUSH flag in Servo side and propagate it to ServoCSSPropList.h.

Bug: 1454830
Reviewed-by: emilio
MozReview-Commit-ID: 5k08FWjobCg

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

@@ -43,7 +43,8 @@
         needs_context=False,
     )}
 
-    ${helpers.predefined_type("border-%s-width" % side_name,
+    ${helpers.predefined_type(
+        "border-%s-width" % side_name,
         "BorderSideWidth",
         "::values::computed::NonNegativeLength::new(3.)",
         computed_type="::values::computed::NonNegativeLength",
@@ -51,9 +52,10 @@
         spec=maybe_logical_spec(side, "width"),
         animation_value_type="NonNegativeLength",
         logical=is_logical,
-                              flags="APPLIES_TO_FIRST_LETTER",
+        flags="APPLIES_TO_FIRST_LETTER GETCS_NEEDS_LAYOUT_FLUSH",
         allow_quirks=not is_logical,
-                              servo_restyle_damage = "reflow rebuild_and_reflow_inline")}
+        servo_restyle_damage="reflow rebuild_and_reflow_inline"
+    )}
 % endfor
 
 ${helpers.gecko_keyword_conversion(Keyword('border-style',

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

@@ -403,14 +403,17 @@ ${helpers.predefined_type(
 
 <% transform_extra_prefixes = "moz:layout.css.prefixes.transforms webkit" %>
 
-${helpers.predefined_type("transform", "Transform",
+${helpers.predefined_type(
+    "transform",
+    "Transform",
     "generics::transform::Transform::none()",
     extra_prefixes=transform_extra_prefixes,
     animation_value_type="ComputedValue",
     gecko_ffi_name="mSpecifiedTransform",
-                          flags="CREATES_STACKING_CONTEXT FIXPOS_CB",
+    flags="CREATES_STACKING_CONTEXT FIXPOS_CB GETCS_NEEDS_LAYOUT_FLUSH",
     spec="https://drafts.csswg.org/css-transforms/#propdef-transform",
-                          servo_restyle_damage = "reflow_out_of_flow")}
+    servo_restyle_damage="reflow_out_of_flow"
+)}
 
 ${helpers.predefined_type("rotate", "Rotate",
                           "generics::transform::Rotate::None",
@@ -430,14 +433,17 @@ ${helpers.predefined_type("scale", "Scale",
                           spec="https://drafts.csswg.org/css-transforms-2/#individual-transforms",
                           servo_restyle_damage = "reflow_out_of_flow")}
 
-${helpers.predefined_type("translate", "Translate",
+${helpers.predefined_type(
+    "translate",
+    "Translate",
     "generics::transform::Translate::None",
     animation_value_type="ComputedValue",
     boxed=True,
-                          flags="CREATES_STACKING_CONTEXT FIXPOS_CB",
+    flags="CREATES_STACKING_CONTEXT FIXPOS_CB GETCS_NEEDS_LAYOUT_FLUSH",
     gecko_pref="layout.css.individual-transform.enabled",
     spec="https://drafts.csswg.org/css-transforms-2/#individual-transforms",
-                          servo_restyle_damage = "reflow_out_of_flow")}
+    servo_restyle_damage="reflow_out_of_flow"
+)}
 
 // CSSOM View Module
 // https://www.w3.org/TR/cssom-view-1/
@@ -529,14 +535,17 @@ ${helpers.predefined_type(
     servo_restyle_damage = "reflow_out_of_flow",
 )}
 
-${helpers.predefined_type("perspective-origin",
+${helpers.predefined_type(
+    "perspective-origin",
     "position::Position",
     "computed::position::Position::center()",
     boxed=True,
     extra_prefixes=transform_extra_prefixes,
     spec="https://drafts.csswg.org/css-transforms-2/#perspective-origin-property",
+    flags="GETCS_NEEDS_LAYOUT_FLUSH",
     animation_value_type="ComputedValue",
-                          servo_restyle_damage = "reflow_out_of_flow")}
+    servo_restyle_damage="reflow_out_of_flow"
+)}
 
 ${helpers.single_keyword("backface-visibility",
                          "visible hidden",
@@ -565,15 +574,18 @@ ${helpers.predefined_type(
     servo_restyle_damage = "reflow_out_of_flow",
 )}
 
-${helpers.predefined_type("transform-origin",
+${helpers.predefined_type(
+    "transform-origin",
     "TransformOrigin",
     "computed::TransformOrigin::initial_value()",
     animation_value_type="ComputedValue",
     extra_prefixes=transform_extra_prefixes,
     gecko_ffi_name="mTransformOrigin",
     boxed=True,
+    flags="GETCS_NEEDS_LAYOUT_FLUSH",
     spec="https://drafts.csswg.org/css-transforms/#transform-origin-property",
-                          servo_restyle_damage = "reflow_out_of_flow")}
+    servo_restyle_damage="reflow_out_of_flow"
+)}
 
 ${helpers.predefined_type("contain",
                           "Contain",

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

@@ -6,13 +6,16 @@
 <% from data import Keyword %>
 <% data.new_style_struct("InheritedText", inherited=True, gecko_name="Text") %>
 
-${helpers.predefined_type("line-height",
+${helpers.predefined_type(
+    "line-height",
     "LineHeight",
     "computed::LineHeight::normal()",
     animation_value_type="LineHeight",
-                          flags="APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE \
+           APPLIES_TO_PLACEHOLDER GETCS_NEEDS_LAYOUT_FLUSH",
     spec="https://drafts.csswg.org/css2/visudet.html#propdef-line-height",
-                          servo_restyle_damage = "reflow")}
+    servo_restyle_damage="reflow"
+)}
 
 // CSS Text Module Level 3
 

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

@@ -12,12 +12,17 @@
         if side[1]:
             spec = "https://drafts.csswg.org/css-logical-props/#propdef-margin-%s" % side[1]
     %>
-    ${helpers.predefined_type("margin-%s" % side[0], "LengthOrPercentageOrAuto",
+    ${helpers.predefined_type(
+        "margin-%s" % side[0],
+        "LengthOrPercentageOrAuto",
         "computed::LengthOrPercentageOrAuto::Length(computed::Length::new(0.))",
         alias=maybe_moz_logical_alias(product, side, "-moz-margin-%s"),
         allow_quirks=not side[1],
-                              animation_value_type="ComputedValue", logical = side[1], spec = spec,
-                              flags="APPLIES_TO_FIRST_LETTER",
+        animation_value_type="ComputedValue",
+        logical=side[1],
+        spec=spec,
+        flags="APPLIES_TO_FIRST_LETTER GETCS_NEEDS_LAYOUT_FLUSH",
         allowed_in_page_rule=True,
-                              servo_restyle_damage = "reflow")}
+        servo_restyle_damage="reflow"
+    )}
 % endfor

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

@@ -14,13 +14,16 @@
         if side[1]:
             spec = "https://drafts.csswg.org/css-logical-props/#propdef-padding-%s" % side[1]
     %>
-    ${helpers.predefined_type("padding-%s" % side[0], "NonNegativeLengthOrPercentage",
+    ${helpers.predefined_type(
+        "padding-%s" % side[0],
+        "NonNegativeLengthOrPercentage",
         "computed::NonNegativeLengthOrPercentage::zero()",
         alias=maybe_moz_logical_alias(product, side, "-moz-padding-%s"),
         animation_value_type="NonNegativeLengthOrPercentage",
         logical=side[1],
         spec=spec,
-                              flags="APPLIES_TO_FIRST_LETTER APPLIES_TO_PLACEHOLDER",
+        flags="APPLIES_TO_FIRST_LETTER APPLIES_TO_PLACEHOLDER GETCS_NEEDS_LAYOUT_FLUSH",
         allow_quirks=not side[1],
-                              servo_restyle_damage = "reflow rebuild_and_reflow_inline")}
+        servo_restyle_damage="reflow rebuild_and_reflow_inline"
+    )}
 % endfor

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

@@ -10,18 +10,28 @@
 
 // "top" / "left" / "bottom" / "right"
 % for side in PHYSICAL_SIDES:
-    ${helpers.predefined_type(side, "LengthOrPercentageOrAuto",
+    ${helpers.predefined_type(
+        side,
+        "LengthOrPercentageOrAuto",
         "computed::LengthOrPercentageOrAuto::Auto",
         spec="https://www.w3.org/TR/CSS2/visuren.html#propdef-%s" % side,
+        flags="GETCS_NEEDS_LAYOUT_FLUSH",
         animation_value_type="ComputedValue",
-                              allow_quirks=True, servo_restyle_damage = "reflow_out_of_flow")}
+        allow_quirks=True,
+        servo_restyle_damage="reflow_out_of_flow"
+    )}
 % endfor
 // offset-* logical properties, map to "top" / "left" / "bottom" / "right"
 % for side in LOGICAL_SIDES:
-    ${helpers.predefined_type("offset-%s" % side, "LengthOrPercentageOrAuto",
+    ${helpers.predefined_type(
+        "offset-%s" % side,
+        "LengthOrPercentageOrAuto",
         "computed::LengthOrPercentageOrAuto::Auto",
         spec="https://drafts.csswg.org/css-logical-props/#propdef-offset-%s" % side,
-                              animation_value_type="ComputedValue", logical=True)}
+        flags="GETCS_NEEDS_LAYOUT_FLUSH",
+        animation_value_type="ComputedValue",
+        logical=True,
+    )}
 % endfor
 
 #[cfg(feature = "gecko")]
@@ -213,6 +223,7 @@ ${helpers.predefined_type(
             allow_quirks=not logical,
             spec=spec % size,
             animation_value_type="MozLength",
+            flags="GETCS_NEEDS_LAYOUT_FLUSH",
             servo_restyle_damage="reflow"
         )}
         // min-width, min-height, min-block-size, min-inline-size,
@@ -318,13 +329,16 @@ ${helpers.predefined_type("object-position",
                               products="gecko",
                               boxed=True)}
 
-    ${helpers.predefined_type("grid-template-%ss" % kind,
+    ${helpers.predefined_type(
+        "grid-template-%ss" % kind,
         "GridTemplateComponent",
         "specified::GenericGridTemplateComponent::None",
         products="gecko",
         spec="https://drafts.csswg.org/css-grid/#propdef-grid-template-%ss" % kind,
         boxed=True,
-                              animation_value_type="discrete")}
+        flags="GETCS_NEEDS_LAYOUT_FLUSH",
+        animation_value_type="discrete"
+    )}
 
 % endfor
 

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

@@ -48,21 +48,29 @@ ${helpers.predefined_type("-moz-window-opacity", "Opacity", "1.0", products="gec
                           spec="None (Nonstandard internal property)")}
 
 // TODO(bug 1419695) This should be hidden from content.
-${helpers.predefined_type("-moz-window-transform", "Transform",
+${helpers.predefined_type(
+    "-moz-window-transform",
+    "Transform",
     "generics::transform::Transform::none()",
-                          products="gecko", gecko_ffi_name="mSpecifiedWindowTransform",
+    products="gecko",
+    gecko_ffi_name="mSpecifiedWindowTransform",
+    flags="GETCS_NEEDS_LAYOUT_FLUSH",
     animation_value_type="ComputedValue",
-                          spec="None (Nonstandard internal property)")}
+    spec="None (Nonstandard internal property)"
+)}
 
 // TODO(bug 1419695) This should be hidden from content.
-${helpers.predefined_type("-moz-window-transform-origin",
+${helpers.predefined_type(
+    "-moz-window-transform-origin",
     "TransformOrigin",
     "computed::TransformOrigin::initial_value()",
     animation_value_type="ComputedValue",
     gecko_ffi_name="mWindowTransformOrigin",
     products="gecko",
     boxed=True,
-                          spec="None (Nonstandard internal property)")}
+    flags="GETCS_NEEDS_LAYOUT_FLUSH",
+    spec="None (Nonstandard internal property)"
+)}
 
 // TODO(emilio): Probably also should be hidden from content.
 ${helpers.predefined_type("-moz-force-broken-image-icon",

components/style/properties/properties.mako.rs

@@ -781,6 +781,13 @@ bitflags! {
         const APPLIES_TO_FIRST_LINE = 1 << 4;
         /// This longhand property applies to ::placeholder.
         const APPLIES_TO_PLACEHOLDER = 1 << 5;
+
+        /* The following flags are currently not used in Rust code, they
+         * only need to be listed in corresponding properties so that
+         * they can be checked in the C++ side via ServoCSSPropList.h. */
+        /// This property's getComputedStyle implementation requires layout
+        /// to be flushed.
+        const GETCS_NEEDS_LAYOUT_FLUSH = 0;
     }
 }