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Recompute viewport-dependent styles on viewport size change

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Fixes #8754.
This commit is contained in:
Matt Brubeck 2016-03-04 11:02:45 -08:00
parent 4df7975ed3
commit 25c1bce9f6
9 changed files with 71 additions and 57 deletions
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12
components/style/selector_matching.rs
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@ -226,12 +226,16 @@ impl<Impl: SelectorImplExt> Stylist<Impl> {
if let Some(ref constraints) = self.viewport_constraints {
device = Device::new(MediaType::Screen, constraints.size);
}
let is_device_dirty = self.is_device_dirty || stylesheets.iter()
.flat_map(|stylesheet| stylesheet.rules().media())
.any(|media_rule| media_rule.evaluate(&self.device) != media_rule.evaluate(&device));
let size_changed = device.viewport_size != self.device.viewport_size;
self.is_device_dirty |= stylesheets.iter().any(|stylesheet| {
(size_changed && stylesheet.dirty_on_viewport_size_change) ||
stylesheet.rules().media().any(|media_rule|
media_rule.evaluate(&self.device) != media_rule.evaluate(&device))
});
self.device = device;
self.is_device_dirty |= is_device_dirty;
}
pub fn viewport_constraints(&self) -> &Option<ViewportConstraints> {