servo/components/script/dom/htmlobjectelement.rs
Simon Sapin aa15dc269f Remove use of unstable box syntax.
http://www.robohornet.org gives a score of 101.36 on master,
and 102.68 with this PR. The latter is slightly better,
but probably within noise level.
So it looks like this PR does not affect DOM performance.

This is expected since `Box::new` is defined as:

```rust
impl<T> Box<T> {
    #[inline(always)]
    pub fn new(x: T) -> Box<T> {
        box x
    }
}
```

With inlining, it should compile to the same as box syntax.
2017-10-16 17:16:20 +02:00

140 lines
4.5 KiB
Rust
Executable file

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use dom::attr::Attr;
use dom::bindings::cell::DomRefCell;
use dom::bindings::codegen::Bindings::HTMLObjectElementBinding;
use dom::bindings::codegen::Bindings::HTMLObjectElementBinding::HTMLObjectElementMethods;
use dom::bindings::inheritance::Castable;
use dom::bindings::root::{DomRoot, MutNullableDom};
use dom::bindings::str::DOMString;
use dom::document::Document;
use dom::element::{AttributeMutation, Element};
use dom::htmlelement::HTMLElement;
use dom::htmlformelement::{FormControl, HTMLFormElement};
use dom::node::{Node, window_from_node};
use dom::validation::Validatable;
use dom::validitystate::{ValidityState, ValidationFlags};
use dom::virtualmethods::VirtualMethods;
use dom_struct::dom_struct;
use html5ever::{LocalName, Prefix};
use net_traits::image::base::Image;
use servo_arc::Arc;
use std::default::Default;
#[dom_struct]
pub struct HTMLObjectElement {
htmlelement: HTMLElement,
#[ignore_heap_size_of = "Arc"]
image: DomRefCell<Option<Arc<Image>>>,
form_owner: MutNullableDom<HTMLFormElement>,
}
impl HTMLObjectElement {
fn new_inherited(local_name: LocalName,
prefix: Option<Prefix>,
document: &Document) -> HTMLObjectElement {
HTMLObjectElement {
htmlelement:
HTMLElement::new_inherited(local_name, prefix, document),
image: DomRefCell::new(None),
form_owner: Default::default(),
}
}
#[allow(unrooted_must_root)]
pub fn new(local_name: LocalName,
prefix: Option<Prefix>,
document: &Document) -> DomRoot<HTMLObjectElement> {
Node::reflect_node(Box::new(HTMLObjectElement::new_inherited(local_name, prefix, document)),
document,
HTMLObjectElementBinding::Wrap)
}
}
trait ProcessDataURL {
fn process_data_url(&self);
}
impl<'a> ProcessDataURL for &'a HTMLObjectElement {
// Makes the local `data` member match the status of the `data` attribute and starts
/// prefetching the image. This method must be called after `data` is changed.
fn process_data_url(&self) {
let elem = self.upcast::<Element>();
// TODO: support other values
match (elem.get_attribute(&ns!(), &local_name!("type")),
elem.get_attribute(&ns!(), &local_name!("data"))) {
(None, Some(_uri)) => {
// TODO(gw): Prefetch the image here.
}
_ => { }
}
}
}
impl HTMLObjectElementMethods for HTMLObjectElement {
// https://html.spec.whatwg.org/multipage/#dom-cva-validity
fn Validity(&self) -> DomRoot<ValidityState> {
let window = window_from_node(self);
ValidityState::new(&window, self.upcast())
}
// https://html.spec.whatwg.org/multipage/#dom-object-type
make_getter!(Type, "type");
// https://html.spec.whatwg.org/multipage/#dom-object-type
make_setter!(SetType, "type");
// https://html.spec.whatwg.org/multipage/#dom-fae-form
fn GetForm(&self) -> Option<DomRoot<HTMLFormElement>> {
self.form_owner()
}
}
impl Validatable for HTMLObjectElement {
fn is_instance_validatable(&self) -> bool {
true
}
fn validate(&self, validate_flags: ValidationFlags) -> bool {
if validate_flags.is_empty() {}
// Need more flag check for different validation types later
true
}
}
impl VirtualMethods for HTMLObjectElement {
fn super_type(&self) -> Option<&VirtualMethods> {
Some(self.upcast::<HTMLElement>() as &VirtualMethods)
}
fn attribute_mutated(&self, attr: &Attr, mutation: AttributeMutation) {
self.super_type().unwrap().attribute_mutated(attr, mutation);
match attr.local_name() {
&local_name!("data") => {
if let AttributeMutation::Set(_) = mutation {
self.process_data_url();
}
},
&local_name!("form") => {
self.form_attribute_mutated(mutation);
},
_ => {},
}
}
}
impl FormControl for HTMLObjectElement {
fn form_owner(&self) -> Option<DomRoot<HTMLFormElement>> {
self.form_owner.get()
}
fn set_form_owner(&self, form: Option<&HTMLFormElement>) {
self.form_owner.set(form);
}
fn to_element<'a>(&'a self) -> &'a Element {
self.upcast::<Element>()
}
}