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Auto merge of #17971 - upsuper:linear-gradient, r=canaltinova

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Always set mBgPos for LineDirection::Vertical

This fixes [bug 1385469](https://bugzilla.mozilla.org/show_bug.cgi?id=1385469).
This commit is contained in:
bors-servo 2017-08-04 04:31:19 -05:00 • committed by GitHub
commit 187254bf26
1 changed files with 12 additions and 8 deletions
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20
components/style/gecko/conversions.rs
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@ -229,14 +229,18 @@ impl nsStyleImage {
}
},
LineDirection::Vertical(y) => {
// Y::Bottom (to bottom) is ignored because it is the default value.
if y == Y::Top {
unsafe {
(*gecko_gradient).mBgPosX
.set_value(CoordDataValue::Percent(0.5));
(*gecko_gradient).mBgPosY
.set_value(CoordDataValue::Percent(0.0));
}
// Although bottom is the default value, we can not ignore
// it here, because the rendering code of Gecko relies on
// this to behave correctly for legacy mode.
let y = match y {
Y::Top => 0.0,
Y::Bottom => 1.0,
};
unsafe {
(*gecko_gradient).mBgPosX
.set_value(CoordDataValue::Percent(0.5));
(*gecko_gradient).mBgPosY
.set_value(CoordDataValue::Percent(y));
}
},
LineDirection::Corner(horiz, vert) => {