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stylo: Add FFI function to check if a node is dirty.

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This commit is contained in:
Cameron McCormack 2016-12-03 14:53:31 +08:00
parent 106a538e7e
commit a079e86820
1 changed files with 17 additions and 0 deletions
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17
ports/geckolib/glue.rs
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@ -202,6 +202,23 @@ pub extern "C" fn Servo_Element_ClearData(element: RawGeckoElementBorrowed) -> (
GeckoElement(element).clear_data(); GeckoElement(element).clear_data();
} }
#[no_mangle]
pub extern "C" fn Servo_Element_ShouldTraverse(element: RawGeckoElementBorrowed) -> bool {
let element = GeckoElement(element);
if let Some(data) = element.get_data() {
debug_assert!(!element.has_dirty_descendants(),
"only call Servo_Element_ShouldTraverse if you know the element \
does not have dirty descendants");
match *data.borrow() {
ElementData::Initial(None) |
ElementData::Restyle(..) => true,
_ => false,
}
} else {
false
}
}
#[no_mangle] #[no_mangle]
pub extern "C" fn Servo_StyleSheet_Empty(mode: SheetParsingMode) -> RawServoStyleSheetStrong { pub extern "C" fn Servo_StyleSheet_Empty(mode: SheetParsingMode) -> RawServoStyleSheetStrong {
let url = ServoUrl::parse("about:blank").unwrap(); let url = ServoUrl::parse("about:blank").unwrap();