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Layout fixes for RTL child flows in LTR parents

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...and vice-versa.  This is not a complete fix for all mixed-direction layout
cases, but it fixes enough problems to make some simple test cases pass, like
tha attached reftest.

There are FIXME comments for many of the remaining issues.  In particular,
this does not yet handle RTL layout of fixed/absolute elements.
This commit is contained in:
Matt Brubeck 2015-02-24 16:43:43 -08:00
parent 7cd776b74f
commit 8221bfc3ef
7 changed files with 131 additions and 25 deletions
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5
components/layout/fragment.rs
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@ -1725,6 +1725,7 @@ impl Fragment {
max(block_flow.base.intrinsic_inline_sizes.minimum_inline_size,
block_flow.base.intrinsic_inline_sizes.preferred_inline_size);
block_flow.base.block_container_inline_size = self.border_box.size.inline;
block_flow.base.block_container_writing_mode = self.style.writing_mode;
}
SpecificFragmentInfo::ScannedText(ref info) => {
// Scanned text fragments will have already had their content inline-sizes assigned
@ -1974,8 +1975,8 @@ impl Fragment {
relative_containing_block_size: &LogicalSize<Au>,
coordinate_system: CoordinateSystem)
-> Rect<Au> {
// FIXME(pcwalton, #2795): Get the real container size.
let container_size = Size2D::zero();
// FIXME (mbrubeck): Get the real container size, taking vertical writing modes into account.
let container_size = Size2D(relative_containing_block_size.inline, relative_containing_block_size.block);
let border_box = self.border_box.to_physical(self.style.writing_mode, container_size);
if coordinate_system == CoordinateSystem::Self && self.establishes_stacking_context() {
return Rect(ZERO_POINT, border_box.size)