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Don't set root font size when styling NAC

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MozReview-Commit-ID: 12CEdFLSJTh
This commit is contained in:
Manish Goregaokar 2017-05-26 14:25:33 -07:00 • committed by Manish Goregaokar
parent 0f5ccdb589
commit 314d7d36e2
2 changed files with 15 additions and 2 deletions
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6
components/style/matching.rs
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@ -13,8 +13,9 @@ use data::{ComputedStyle, ElementData, RestyleData};
use dom::{TElement, TNode};
use font_metrics::FontMetricsProvider;
use log::LogLevel::Trace;
use properties::{ALLOW_SET_ROOT_FONT_SIZE, SKIP_ROOT_AND_ITEM_BASED_DISPLAY_FIXUP};
use properties::{AnimationRules, CascadeFlags, ComputedValues};
use properties::{SKIP_ROOT_AND_ITEM_BASED_DISPLAY_FIXUP, VISITED_DEPENDENT_ONLY, cascade};
use properties::{VISITED_DEPENDENT_ONLY, cascade};
use properties::longhands::display::computed_value as display;
use restyle_hints::{RESTYLE_CSS_ANIMATIONS, RESTYLE_CSS_TRANSITIONS, RestyleReplacements};
use restyle_hints::{RESTYLE_STYLE_ATTRIBUTE, RESTYLE_SMIL};
@ -256,6 +257,9 @@ trait PrivateMatchMethods: TElement {
if cascade_visited.visited_dependent_only() {
cascade_flags.insert(VISITED_DEPENDENT_ONLY);
}
if !self.is_native_anonymous() {
cascade_flags.insert(ALLOW_SET_ROOT_FONT_SIZE);
}
// Grab the inherited values.
let parent_el;

11
components/style/properties/properties.mako.rs
View file

@ -2483,6 +2483,15 @@ bitflags! {
const SKIP_ROOT_AND_ITEM_BASED_DISPLAY_FIXUP = 0x02,
/// Whether to only cascade properties that are visited dependent.
const VISITED_DEPENDENT_ONLY = 0x04,
/// Should we modify the device's root font size
/// when computing the root?
///
/// Not set for native anonymous content since some NAC
/// form their own root, but share the device.
///
/// ::backdrop and all NAC will resolve rem units against
/// the toplevel root element now.
const ALLOW_SET_ROOT_FONT_SIZE = 0x08,
}
}
@ -2773,7 +2782,7 @@ pub fn apply_declarations<'a, F, I>(device: &Device,
% endif
}
if is_root_element {
if is_root_element && flags.contains(ALLOW_SET_ROOT_FONT_SIZE) {
let s = context.style.get_font().clone_font_size();
context.device.set_root_font_size(s);
}