style: Expose the traversal kind to the style system.

This way we'll be able to take different paths for the sequential and parallel
traversals in some concrete cases.

This is a preliminar patch to fix bug 1332525.
This commit is contained in:
Emilio Cobos Álvarez 2017-01-23 19:55:06 +01:00
parent 7e2329ea4e
commit f00b628c3a
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GPG key ID: 056B727BB9C1027C
7 changed files with 64 additions and 13 deletions

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@ -9,19 +9,21 @@ use context::{SharedStyleContext, StyleContext, ThreadLocalStyleContext};
use data::ElementData;
use dom::{NodeInfo, TNode};
use gecko::wrapper::{GeckoElement, GeckoNode};
use traversal::{DomTraversal, PerLevelTraversalData, recalc_style_at};
use traversal::{DomTraversal, PerLevelTraversalData, TraversalDriver, recalc_style_at};
/// This is the simple struct that Gecko uses to encapsulate a DOM traversal for
/// styling.
pub struct RecalcStyleOnly {
shared: SharedStyleContext,
driver: TraversalDriver,
}
impl RecalcStyleOnly {
/// Create a `RecalcStyleOnly` traversal from a `SharedStyleContext`.
pub fn new(shared: SharedStyleContext) -> Self {
pub fn new(shared: SharedStyleContext, driver: TraversalDriver) -> Self {
RecalcStyleOnly {
shared: shared,
driver: driver,
}
}
}
@ -66,4 +68,8 @@ impl<'le> DomTraversal<GeckoElement<'le>> for RecalcStyleOnly {
fn create_thread_local_context(&self) -> Self::ThreadLocalContext {
ThreadLocalStyleContext::new(&self.shared)
}
fn is_parallel(&self) -> bool {
self.driver.is_parallel()
}
}