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Auto merge of #16328 - bradwerth:computedStyles, r=heycam

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Stylo: Add FFI interfaces for exposing style sources.

https://bugzilla.mozilla.org/show_bug.cgi?id=1346256
https://reviewboard.mozilla.org/r/119044/

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This commit is contained in:
bors-servo 2017-04-10 04:04:54 -05:00 • committed by GitHub
commit a0a60ba61d
6 changed files with 59 additions and 6 deletions
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30
ports/geckolib/glue.rs
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@ -34,7 +34,6 @@ use style::gecko_bindings::bindings::{RawServoMediaListBorrowed, RawServoMediaLi
use style::gecko_bindings::bindings::{RawServoMediaRule, RawServoMediaRuleBorrowed};
use style::gecko_bindings::bindings::{RawServoNamespaceRule, RawServoNamespaceRuleBorrowed};
use style::gecko_bindings::bindings::{RawServoPageRule, RawServoPageRuleBorrowed};
use style::gecko_bindings::bindings::{RawServoStyleRule, RawServoStyleRuleBorrowed};
use style::gecko_bindings::bindings::{RawServoStyleSetBorrowed, RawServoStyleSetOwned};
use style::gecko_bindings::bindings::{RawServoStyleSheetBorrowed, ServoComputedValuesBorrowed};
use style::gecko_bindings::bindings::{RawServoStyleSheetStrong, ServoComputedValuesStrong};
@ -46,20 +45,22 @@ use style::gecko_bindings::bindings::RawGeckoComputedKeyframeValuesListBorrowedM
use style::gecko_bindings::bindings::RawGeckoComputedTimingBorrowed;
use style::gecko_bindings::bindings::RawGeckoElementBorrowed;
use style::gecko_bindings::bindings::RawGeckoFontFaceRuleListBorrowedMut;
use style::gecko_bindings::bindings::RawGeckoServoStyleRuleListBorrowedMut;
use style::gecko_bindings::bindings::RawServoAnimationValueBorrowed;
use style::gecko_bindings::bindings::RawServoAnimationValueMapBorrowed;
use style::gecko_bindings::bindings::RawServoAnimationValueStrong;
use style::gecko_bindings::bindings::RawServoImportRuleBorrowed;
use style::gecko_bindings::bindings::RawServoStyleRuleBorrowed;
use style::gecko_bindings::bindings::ServoComputedValuesBorrowedOrNull;
use style::gecko_bindings::bindings::nsTArrayBorrowed_uintptr_t;
use style::gecko_bindings::bindings::nsTimingFunctionBorrowed;
use style::gecko_bindings::bindings::nsTimingFunctionBorrowedMut;
use style::gecko_bindings::structs;
use style::gecko_bindings::structs::{RawServoStyleRule, ServoStyleSheet};
use style::gecko_bindings::structs::{SheetParsingMode, nsIAtom, nsCSSPropertyID};
use style::gecko_bindings::structs::{nsRestyleHint, nsChangeHint, nsCSSFontFaceRule};
use style::gecko_bindings::structs::Loader;
use style::gecko_bindings::structs::RawGeckoPresContextOwned;
use style::gecko_bindings::structs::ServoStyleSheet;
use style::gecko_bindings::structs::URLExtraData;
use style::gecko_bindings::structs::nsCSSValueSharedList;
use style::gecko_bindings::structs::nsresult;
@ -77,6 +78,7 @@ use style::properties::SKIP_ROOT_AND_ITEM_BASED_DISPLAY_FIXUP;
use style::properties::animated_properties::{AnimationValue, Interpolate, TransitionProperty};
use style::properties::parse_one_declaration;
use style::restyle_hints::{self, RestyleHint};
use style::rule_tree::StyleSource;
use style::selector_parser::PseudoElementCascadeType;
use style::sequential;
use style::shared_lock::{SharedRwLock, SharedRwLockReadGuard, StylesheetGuards, ToCssWithGuard, Locked};
@ -1560,6 +1562,30 @@ pub extern "C" fn Servo_Element_GetSnapshot(element: RawGeckoElementBorrowed) ->
snapshot
}
#[no_mangle]
pub extern "C" fn Servo_Element_GetStyleRuleList(element: RawGeckoElementBorrowed,
rules: RawGeckoServoStyleRuleListBorrowedMut) {
let element = GeckoElement(element);
let data = match element.borrow_data() {
Some(element_data) => element_data,
None => return,
};
let computed = match data.get_styles() {
Some(styles) => &styles.primary,
None => return,
};
let mut result = vec![];
for rule_node in computed.rules.self_and_ancestors() {
if let Some(&StyleSource::Style(ref rule)) = rule_node.style_source() {
result.push(Locked::<StyleRule>::arc_as_borrowed(&rule));
}
}
unsafe { rules.set_len(result.len() as u32) };
for (&src, dest) in result.into_iter().zip(rules.iter_mut()) {
*dest = src;
}
}
#[no_mangle]
pub extern "C" fn Servo_NoteExplicitHints(element: RawGeckoElementBorrowed,
restyle_hint: nsRestyleHint,