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.get_attribute(&ns, &LocalName::from(local_name))
66    }
67
68    /// <https://dom.spec.whatwg.org/#dom-namednodemap-setnameditem>
69    fn SetNamedItem(
70        &self,
71        cx: &mut js::context::JSContext,
72        attr: &Attr,
73    ) -> Fallible<Option<DomRoot<Attr>>> {
74        self.owner.SetAttributeNode(cx, attr)
75    }
76
77    /// <https://dom.spec.whatwg.org/#dom-namednodemap-setnameditemns>
78    fn SetNamedItemNS(
79        &self,
80        cx: &mut js::context::JSContext,
81        attr: &Attr,
82    ) -> Fallible<Option<DomRoot<Attr>>> {
83        self.SetNamedItem(cx, attr)
84    }
85
86    /// <https://dom.spec.whatwg.org/#dom-namednodemap-removenameditem>
87    fn RemoveNamedItem(
88        &self,
89        cx: &mut js::context::JSContext,
90        name: DOMString,
91    ) -> Fallible<DomRoot<Attr>> {
92        let name = self.owner.parsed_name(name);
93        self.owner
94            .remove_attribute_by_name(&name, CanGc::from_cx(cx))
95            .ok_or(Error::NotFound(None))
96    }
97
98    /// <https://dom.spec.whatwg.org/#dom-namednodemap-removenameditemns>
99    fn RemoveNamedItemNS(
100        &self,
101        cx: &mut js::context::JSContext,
102        namespace: Option<DOMString>,
103        local_name: DOMString,
104    ) -> Fallible<DomRoot<Attr>> {
105        let ns = namespace_from_domstring(namespace);
106        self.owner
107            .remove_attribute(&ns, &LocalName::from(local_name), CanGc::from_cx(cx))
108            .ok_or(Error::NotFound(None))
109    }
110
111    /// <https://dom.spec.whatwg.org/#dom-namednodemap-item>
112    fn IndexedGetter(&self, index: u32) -> Option<DomRoot<Attr>> {
113        self.Item(index)
114    }
115
116    // check-tidy: no specs after this line
117    fn NamedGetter(&self, name: DOMString) -> Option<DomRoot<Attr>> {
118        self.GetNamedItem(name)
119    }
120
121    /// <https://heycam.github.io/webidl/#dfn-supported-property-names>
122    fn SupportedPropertyNames(&self) -> Vec<DOMString> {
123        let mut names = vec![];
124        let html_element_in_html_document = self.owner.html_element_in_html_document();
125        for attr in self.owner.attrs().iter() {
126            let s = &**attr.name();
127            if html_element_in_html_document && !s.bytes().all(|b| b.to_ascii_lowercase() == b) {
128                continue;
129            }
130
131            if !names.iter().any(|name| name == s) {
132                names.push(DOMString::from(s));
133            }
134        }
135        names
136    }
137}
script/dom/namednodemap.rs

script/dom/
namednodemap.rs
