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LibWeb: Implement Document.getElementById()

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This was pleasantly simple! We don't have an ElementWrapper yet, so it
just returns a NodeWrapper, but it still basically works. :^)
This commit is contained in:
Andreas Kling 2020-03-14 13:24:15 +01:00
parent 1c406294fc
commit b5a22fc408
3 changed files with 14 additions and 3 deletions
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10
Libraries/LibWeb/Bindings/DocumentWrapper.cpp
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@ -2,6 +2,7 @@
#include <LibJS/Value.h>
#include <LibWeb/Bindings/DocumentWrapper.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/DOM/Element.h>
namespace Web {
namespace Bindings {
@ -9,6 +10,15 @@ namespace Bindings {
DocumentWrapper::DocumentWrapper(Document& document)
: NodeWrapper(document)
{
put_native_function("getElementById", [this](JS::Interpreter&, Vector<JS::Value> arguments) -> JS::Value {
if (arguments.is_empty())
return JS::js_null();
auto id = arguments[0].to_string();
auto* element = node().get_element_by_id(id);
if (!element)
return JS::js_null();
return wrap(heap(), const_cast<Element&>(*element));
});
}
DocumentWrapper::~DocumentWrapper()