From 99aee290dbee2a38c3a4c133f910c4ee11526c63 Mon Sep 17 00:00:00 2001
From: Lucjan Suski <lucjansuski@gmail.com>
Date: Wed, 22 Mar 2017 11:08:31 +0100
Subject: [PATCH] Stylo: Add gecko glue for grid-auto-flow

---
 components/style/properties/gecko.mako.rs     | 23 ++++++++++++++++++-
 .../properties/longhand/position.mako.rs      |  2 +-
 2 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/components/style/properties/gecko.mako.rs b/components/style/properties/gecko.mako.rs
index 3c84ea6e402..753a3db5f68 100644
--- a/components/style/properties/gecko.mako.rs
+++ b/components/style/properties/gecko.mako.rs
@@ -953,7 +953,7 @@ fn static_assert() {
 <%self:impl_trait style_struct_name="Position"
                   skip_longhands="${skip_position_longhands} z-index box-sizing order align-content
                                   justify-content align-self justify-self align-items
-                                  justify-items grid-auto-rows grid-auto-columns">
+                                  justify-items grid-auto-rows grid-auto-columns grid-auto-flow">
     % for side in SIDES:
     <% impl_split_style_coord("%s" % side.ident,
                               "mOffset",
@@ -1103,6 +1103,27 @@ fn static_assert() {
     }
     % endfor
 
+    pub fn set_grid_auto_flow(&mut self, v: longhands::grid_auto_flow::computed_value::T) {
+        use gecko_bindings::structs::NS_STYLE_GRID_AUTO_FLOW_ROW;
+        use gecko_bindings::structs::NS_STYLE_GRID_AUTO_FLOW_COLUMN;
+        use gecko_bindings::structs::NS_STYLE_GRID_AUTO_FLOW_DENSE;
+        use properties::longhands::grid_auto_flow::computed_value::AutoFlow::{Row, Column};
+
+        self.gecko.mGridAutoFlow = 0;
+
+        let value = match v.autoflow {
+            Row => NS_STYLE_GRID_AUTO_FLOW_ROW,
+            Column => NS_STYLE_GRID_AUTO_FLOW_COLUMN,
+        };
+
+        self.gecko.mGridAutoFlow |= value as u8;
+
+        if v.dense {
+            self.gecko.mGridAutoFlow |= NS_STYLE_GRID_AUTO_FLOW_DENSE as u8;
+        }
+    }
+
+    ${impl_simple_copy('grid_auto_flow', 'mGridAutoFlow')}
 </%self:impl_trait>
 
 <% skip_outline_longhands = " ".join("outline-style outline-width".split() +
diff --git a/components/style/properties/longhand/position.mako.rs b/components/style/properties/longhand/position.mako.rs
index 602be097ec2..db4aeb518be 100644
--- a/components/style/properties/longhand/position.mako.rs
+++ b/components/style/properties/longhand/position.mako.rs
@@ -326,7 +326,7 @@ ${helpers.predefined_type("object-position",
 
 <%helpers:longhand name="grid-auto-flow"
         spec="https://drafts.csswg.org/css-grid/#propdef-grid-auto-flow"
-        products="none"
+        products="gecko"
         animatable="False">
     use std::fmt;
     use style_traits::ToCss;