script/dom/
namednodemap.rs

1/* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
4
5use dom_struct::dom_struct;
6use html5ever::LocalName;
7
8use crate::dom::attr::Attr;
9use crate::dom::bindings::codegen::Bindings::ElementBinding::ElementMethods;
10use crate::dom::bindings::codegen::Bindings::NamedNodeMapBinding::NamedNodeMapMethods;
11use crate::dom::bindings::domname::namespace_from_domstring;
12use crate::dom::bindings::error::{Error, Fallible};
13use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
14use crate::dom::bindings::root::{Dom, DomRoot};
15use crate::dom::bindings::str::DOMString;
16use crate::dom::element::Element;
17use crate::dom::window::Window;
18use crate::script_runtime::CanGc;
19
20#[dom_struct]
21pub(crate) struct NamedNodeMap {
22    reflector_: Reflector,
23    owner: Dom<Element>,
24}
25
26impl NamedNodeMap {
27    fn new_inherited(elem: &Element) -> NamedNodeMap {
28        NamedNodeMap {
29            reflector_: Reflector::new(),
30            owner: Dom::from_ref(elem),
31        }
32    }
33
34    pub(crate) fn new(window: &Window, elem: &Element, can_gc: CanGc) -> DomRoot<NamedNodeMap> {
35        reflect_dom_object(Box::new(NamedNodeMap::new_inherited(elem)), window, can_gc)
36    }
37}
38
39impl NamedNodeMapMethods<crate::DomTypeHolder> for NamedNodeMap {
40    /// <https://dom.spec.whatwg.org/#dom-namednodemap-length>
41    fn Length(&self) -> u32 {
42        self.owner.attrs().len() as u32
43    }
44
45    /// <https://dom.spec.whatwg.org/#dom-namednodemap-item>
46    fn Item(&self, index: u32) -> Option<DomRoot<Attr>> {
47        self.owner
48            .attrs()
49            .get(index as usize)
50            .map(|js| DomRoot::from_ref(&**js))
51    }
52
53    /// <https://dom.spec.whatwg.org/#dom-namednodemap-getnameditem>
54    fn GetNamedItem(&self, name: DOMString) -> Option<DomRoot<Attr>> {
55        self.owner.get_attribute_by_name(name)
56    }
57
58    /// <https://dom.spec.whatwg.org/#dom-namednodemap-getnameditemns>
59    fn GetNamedItemNS(
60        &self,
61        namespace: Option<DOMString>,
62        local_name: DOMString,
63    ) -> Option<DomRoot<Attr>> {
64        let ns = namespace_from_domstring(namespace);
65        self.owner
66            .get_attribute_with_namespace(&ns, &LocalName::from(local_name))
67    }
68
69    /// <https://dom.spec.whatwg.org/#dom-namednodemap-setnameditem>
70    fn SetNamedItem(
71        &self,
72        cx: &mut js::context::JSContext,
73        attr: &Attr,
74    ) -> Fallible<Option<DomRoot<Attr>>> {
75        self.owner.SetAttributeNode(cx, attr)
76    }
77
78    /// <https://dom.spec.whatwg.org/#dom-namednodemap-setnameditemns>
79    fn SetNamedItemNS(
80        &self,
81        cx: &mut js::context::JSContext,
82        attr: &Attr,
83    ) -> Fallible<Option<DomRoot<Attr>>> {
84        self.SetNamedItem(cx, attr)
85    }
86
87    /// <https://dom.spec.whatwg.org/#dom-namednodemap-removenameditem>
88    fn RemoveNamedItem(
89        &self,
90        cx: &mut js::context::JSContext,
91        name: DOMString,
92    ) -> Fallible<DomRoot<Attr>> {
93        let name = self.owner.parsed_name(name);
94        self.owner
95            .remove_attribute_by_name(&name, CanGc::from_cx(cx))
96            .ok_or(Error::NotFound(None))
97    }
98
99    /// <https://dom.spec.whatwg.org/#dom-namednodemap-removenameditemns>
100    fn RemoveNamedItemNS(
101        &self,
102        cx: &mut js::context::JSContext,
103        namespace: Option<DOMString>,
104        local_name: DOMString,
105    ) -> Fallible<DomRoot<Attr>> {
106        let ns = namespace_from_domstring(namespace);
107        self.owner
108            .remove_attribute(&ns, &LocalName::from(local_name), CanGc::from_cx(cx))
109            .ok_or(Error::NotFound(None))
110    }
111
112    /// <https://dom.spec.whatwg.org/#dom-namednodemap-item>
113    fn IndexedGetter(&self, index: u32) -> Option<DomRoot<Attr>> {
114        self.Item(index)
115    }
116
117    // check-tidy: no specs after this line
118    fn NamedGetter(&self, name: DOMString) -> Option<DomRoot<Attr>> {
119        self.GetNamedItem(name)
120    }
121
122    /// <https://heycam.github.io/webidl/#dfn-supported-property-names>
123    fn SupportedPropertyNames(&self) -> Vec<DOMString> {
124        let mut names = vec![];
125        let html_element_in_html_document = self.owner.html_element_in_html_document();
126        for attr in self.owner.attrs().iter() {
127            let s = &**attr.name();
128            if html_element_in_html_document && !s.bytes().all(|b| b.to_ascii_lowercase() == b) {
129                continue;
130            }
131
132            if !names.iter().any(|name| name == s) {
133                names.push(DOMString::from(s));
134            }
135        }
136        names
137    }
138}
script/dom/namednodemap.rs

script/dom/
namednodemap.rs
