servo/components/script/dom/customevent.rs
Anthony Ramine 13ea3ac413 Introduce trait Castable
This trait is used to hold onto the downcast and upcast functions of all
castable IDL interfaces. A castable IDL interface is one which either derives
from or is derived by other interfaces.

The deriving relation is represented by implementations of marker trait
DerivedFrom<T: Castable> generated in InheritTypes.

/^[ ]*use dom::bindings::codegen::InheritTypes::.*(Base|Cast|Derived)/ {
    /::[a-zA-Z]+(Base|Cast|Derived);/d
    s/([{ ])[a-zA-Z]+(Base|Cast|Derived), /\1/g
    s/([{ ])[a-zA-Z]+(Base|Cast|Derived), /\1/g
    s/, [a-zA-Z]+(Base|Cast|Derived)([},])/\2/g
    s/, [a-zA-Z]+(Base|Cast|Derived)([},])/\2/g
    /\{([a-zA-Z]+(Base|Cast|Derived))?\};$/d
    s/\{([a-zA-Z_]+)\};$/\1;/
}

s/([a-zA-Z]+)Cast::from_ref\(\&?\**([a-zA-Z_]+)(\.r\(\))?\)/\2.upcast::<\1>()/g
s/([a-zA-Z]+)Cast::from_ref\(\&?\**([a-zA-Z_]+)(\.[a-zA-Z_]+\(\))?\)/\2\3.upcast::<\1>()/g
s/\(([a-zA-Z]+)Cast::from_ref\)/\(Castable::upcast::<\1>\)/g

s/([a-zA-Z]+)Cast::from_root/Root::upcast::<\1>/g

s/([a-zA-Z]+)Cast::from_layout_js\(\&([a-zA-Z_.]+)\)/\2.upcast::<\1>()/g

s/([a-zA-Z]+)Cast::to_ref\(\&?\**([a-zA-Z_]+)(\.r\(\))?\)/\2.downcast::<\1>()/g
s/([a-zA-Z]+)Cast::to_ref\(\&?\**([a-zA-Z_]+)(\.[a-zA-Z_]+\(\))?\)/\2\3.downcast::<\1>()/g
s/\(([a-zA-Z]+)Cast::to_ref\)/\(Castable::downcast::<\1>\)/g

s/([a-zA-Z]+)Cast::to_root/Root::downcast::<\1>/g

s/([a-zA-Z]+)Cast::to_layout_js\(&?([a-zA-Z_.]+(\(\))?)\)/\2.downcast::<\1>()/g

s/\.is_document\(\)/.is::<Document>()/g
s/\.is_htmlanchorelement\(\)/.is::<HTMLAnchorElement>()/g
s/\.is_htmlappletelement\(\)/.is::<HTMLAppletElement>()/g
s/\.is_htmlareaelement\(\)/.is::<HTMLAreaElement>()/g
s/\.is_htmlbodyelement\(\)/.is::<HTMLBodyElement>()/g
s/\.is_htmlembedelement\(\)/.is::<HTMLEmbedElement>()/g
s/\.is_htmlfieldsetelement\(\)/.is::<HTMLFieldSetElement>()/g
s/\.is_htmlformelement\(\)/.is::<HTMLFormElement>()/g
s/\.is_htmlframesetelement\(\)/.is::<HTMLFrameSetElement>()/g
s/\.is_htmlhtmlelement\(\)/.is::<HTMLHtmlElement>()/g
s/\.is_htmlimageelement\(\)/.is::<HTMLImageElement>()/g
s/\.is_htmllegendelement\(\)/.is::<HTMLLegendElement>()/g
s/\.is_htmloptgroupelement\(\)/.is::<HTMLOptGroupElement>()/g
s/\.is_htmloptionelement\(\)/.is::<HTMLOptionElement>()/g
s/\.is_htmlscriptelement\(\)/.is::<HTMLScriptElement>()/g
s/\.is_htmltabledatacellelement\(\)/.is::<HTMLTableDataCellElement>()/g
s/\.is_htmltableheadercellelement\(\)/.is::<HTMLTableHeaderCellElement>()/g
s/\.is_htmltablerowelement\(\)/.is::<HTMLTableRowElement>()/g
s/\.is_htmltablesectionelement\(\)/.is::<HTMLTableSectionElement>()/g
s/\.is_htmltitleelement\(\)/.is::<HTMLTitleElement>()/g
2015-10-21 11:37:16 +02:00

81 lines
2.8 KiB
Rust

/* 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::bindings::codegen::Bindings::CustomEventBinding;
use dom::bindings::codegen::Bindings::CustomEventBinding::CustomEventMethods;
use dom::bindings::codegen::Bindings::EventBinding::EventMethods;
use dom::bindings::conversions::Castable;
use dom::bindings::error::Fallible;
use dom::bindings::global::GlobalRef;
use dom::bindings::js::{MutHeapJSVal, Root};
use dom::bindings::utils::reflect_dom_object;
use dom::event::Event;
use js::jsapi::{HandleValue, JSContext};
use js::jsval::JSVal;
use util::str::DOMString;
// https://dom.spec.whatwg.org/#interface-customevent
#[dom_struct]
pub struct CustomEvent {
event: Event,
#[ignore_heap_size_of = "Defined in rust-mozjs"]
detail: MutHeapJSVal,
}
impl CustomEvent {
fn new_inherited() -> CustomEvent {
CustomEvent {
event: Event::new_inherited(),
detail: MutHeapJSVal::new(),
}
}
pub fn new_uninitialized(global: GlobalRef) -> Root<CustomEvent> {
reflect_dom_object(box CustomEvent::new_inherited(),
global,
CustomEventBinding::Wrap)
}
pub fn new(global: GlobalRef,
type_: DOMString,
bubbles: bool,
cancelable: bool,
detail: HandleValue) -> Root<CustomEvent> {
let ev = CustomEvent::new_uninitialized(global);
ev.r().InitCustomEvent(global.get_cx(), type_, bubbles, cancelable, detail);
ev
}
#[allow(unsafe_code)]
pub fn Constructor(global: GlobalRef,
type_: DOMString,
init: &CustomEventBinding::CustomEventInit) -> Fallible<Root<CustomEvent>>{
Ok(CustomEvent::new(global,
type_,
init.parent.bubbles,
init.parent.cancelable,
unsafe { HandleValue::from_marked_location(&init.detail) }))
}
}
impl CustomEventMethods for CustomEvent {
// https://dom.spec.whatwg.org/#dom-customevent-detail
fn Detail(&self, _cx: *mut JSContext) -> JSVal {
self.detail.get()
}
// https://dom.spec.whatwg.org/#dom-customevent-initcustomevent
fn InitCustomEvent(&self,
_cx: *mut JSContext,
type_: DOMString,
can_bubble: bool,
cancelable: bool,
detail: HandleValue) {
let event = self.upcast::<Event>();
if event.dispatching() {
return;
}
self.detail.set(detail.get());
event.InitEvent(type_, can_bubble, cancelable);
}
}