diff options
Diffstat (limited to 'components/layout/layout_thread.rs')
| -rw-r--r-- | components/layout/layout_thread.rs | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/components/layout/layout_thread.rs b/components/layout/layout_thread.rs index 187655f92b0..e0b0ac20e82 100644 --- a/components/layout/layout_thread.rs +++ b/components/layout/layout_thread.rs @@ -1040,6 +1040,8 @@ impl LayoutThread { }; // Handle conditions where the entire flow tree is invalid. + let mut needs_dirtying = false; + let viewport_size_changed = self.viewport_size != old_viewport_size; if viewport_size_changed { if let Some(constraints) = constraints { @@ -1048,11 +1050,15 @@ impl LayoutThread { constellation_chan.send(ConstellationMsg::ViewportConstrained( self.id, constraints)).unwrap(); } + // FIXME (#10104): Only dirty nodes affected by vh/vw/vmin/vmax styles. + if data.document_stylesheets.iter().any(|sheet| sheet.dirty_on_viewport_size_change) { + needs_dirtying = true; + } } // If the entire flow tree is invalid, then it will be reflowed anyhow. - let needs_dirtying = rw_data.stylist.update(&data.document_stylesheets, - data.stylesheets_changed); + needs_dirtying |= rw_data.stylist.update(&data.document_stylesheets, + data.stylesheets_changed); let needs_reflow = viewport_size_changed && !needs_dirtying; unsafe { if needs_dirtying { |