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Constrain the viewport & zoom when reflowing

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James Gilbertson 2015-03-24 23:46:47 -06:00
parent 8977316d3e
commit 138596e861
13 changed files with 100 additions and 13 deletions
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9
components/style/selector_matching.rs
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@ -17,6 +17,7 @@ use media_queries::Device;
use node::TElementAttributes;
use properties::{PropertyDeclaration, PropertyDeclarationBlock};
use stylesheets::{Stylesheet, CSSRuleIteratorExt, Origin};
use viewport::{ViewportConstraints, ViewportRuleCascade};
pub type DeclarationBlock = GenericDeclarationBlock<Vec<PropertyDeclaration>>;
@ -69,6 +70,14 @@ impl Stylist {
stylist
}
pub fn constrain_viewport(&self) -> Option<ViewportConstraints> {
let cascaded_rule = self.stylesheets.iter()
.flat_map(|s| s.effective_rules(&self.device).viewport())
.cascade();
ViewportConstraints::maybe_new(self.device.viewport_size, &cascaded_rule)
}
pub fn update(&mut self) -> bool {
if self.is_dirty {
self.element_map = PerPseudoElementSelectorMap::new();