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opindex for easier traversal (cybershadow suggestion)

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Adam D. Ruppe 2017-08-27 19:40:22 -04:00
parent d09b8224f8
commit c0b20a99fa
1 changed files with 19 additions and 0 deletions
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dom.d
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@ -1,3 +1,4 @@
// FIXME: add classList
/++ /++
This is an html DOM implementation, started with cloning This is an html DOM implementation, started with cloning
what the browser offers in Javascript, but going well beyond what the browser offers in Javascript, but going well beyond
@ -1350,6 +1351,24 @@ class Document : FileResource {
/// This represents almost everything in the DOM. /// This represents almost everything in the DOM.
class Element { class Element {
/// Returns a collection of elements by selector.
/// See: [Document.opIndex]
ElementCollection opIndex(string selector) {
auto e = ElementCollection(this);
return e[selector];
}
/++
Returns the child node with the particular index.
Be aware that child nodes include text nodes, including
whitespace-only nodes.
+/
Element opIndex(size_t index) {
if(index >= children.length)
return null;
return this.children[index];
}
/// Calls getElementById, but throws instead of returning null if the element is not found. You can also ask for a specific subclass of Element to dynamically cast to, which also throws if it cannot be done. /// Calls getElementById, but throws instead of returning null if the element is not found. You can also ask for a specific subclass of Element to dynamically cast to, which also throws if it cannot be done.
final SomeElementType requireElementById(SomeElementType = Element)(string id, string file = __FILE__, size_t line = __LINE__) final SomeElementType requireElementById(SomeElementType = Element)(string id, string file = __FILE__, size_t line = __LINE__)