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Add binding functions for getting/removing property

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This commit is contained in:
Xidorn Quan 2016-11-03 15:03:13 +11:00
parent f6d5dc7d08
commit 9ef1292957
2 changed files with 60 additions and 0 deletions
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22
components/style/gecko_bindings/bindings.rs
View file

@ -960,6 +960,28 @@ extern "C" {
*mut nsAString_internal)
-> bool;
}
extern "C" {
pub fn Servo_DeclarationBlock_GetPropertyValue(declarations:
RawServoDeclarationBlockBorrowed,
property: *mut nsIAtom,
is_custom: bool,
value:
*mut nsAString_internal);
}
extern "C" {
pub fn Servo_DeclarationBlock_GetPropertyIsImportant(declarations:
RawServoDeclarationBlockBorrowed,
property:
*mut nsIAtom,
is_custom: bool)
-> bool;
}
extern "C" {
pub fn Servo_DeclarationBlock_RemoveProperty(declarations:
RawServoDeclarationBlockBorrowed,
property: *mut nsIAtom,
is_custom: bool);
}
extern "C" {
pub fn Servo_CSSSupports(name: *const nsACString_internal,
value: *const nsACString_internal) -> bool;

38
ports/geckolib/glue.rs
View file

@ -508,6 +508,44 @@ pub extern "C" fn Servo_DeclarationBlock_GetNthProperty(declarations: RawServoDe
}
}
// FIXME Methods of PropertyDeclarationBlock should take atoms directly.
// This function is just a temporary workaround before that finishes.
fn get_property_name_from_atom(atom: *mut nsIAtom, is_custom: bool) -> String {
let atom = Atom::from(atom);
if !is_custom {
atom.to_string()
} else {
let mut result = String::with_capacity(atom.len() as usize + 2);
write!(result, "--{}", atom).unwrap();
result
}
}
#[no_mangle]
pub extern "C" fn Servo_DeclarationBlock_GetPropertyValue(declarations: RawServoDeclarationBlockBorrowed,
property: *mut nsIAtom, is_custom: bool,
value: *mut nsAString) {
let declarations = RwLock::<PropertyDeclarationBlock>::as_arc(&declarations);
let property = get_property_name_from_atom(property, is_custom);
declarations.read().property_value_to_css(&property, unsafe { value.as_mut().unwrap() }).unwrap();
}
#[no_mangle]
pub extern "C" fn Servo_DeclarationBlock_GetPropertyIsImportant(declarations: RawServoDeclarationBlockBorrowed,
property: *mut nsIAtom, is_custom: bool) -> bool {
let declarations = RwLock::<PropertyDeclarationBlock>::as_arc(&declarations);
let property = get_property_name_from_atom(property, is_custom);
declarations.read().property_priority(&property).important()
}
#[no_mangle]
pub extern "C" fn Servo_DeclarationBlock_RemoveProperty(declarations: RawServoDeclarationBlockBorrowed,
property: *mut nsIAtom, is_custom: bool) {
let declarations = RwLock::<PropertyDeclarationBlock>::as_arc(&declarations);
let property = get_property_name_from_atom(property, is_custom);
declarations.write().remove_property(&property);
}
#[no_mangle]
pub extern "C" fn Servo_CSSSupports(property: *const nsACString, value: *const nsACString) -> bool {
let property = unsafe { property.as_ref().unwrap().as_str_unchecked() };