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LibWeb: Add document.querySelector()

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This commit is contained in:
Linus Groh 2020-05-25 21:12:00 +01:00 • committed by Andreas Kling
parent 6e505b853e
commit 67b742bf32
8 changed files with 46 additions and 5 deletions
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19
Libraries/LibWeb/Bindings/DocumentWrapper.cpp
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@ -41,6 +41,7 @@ DocumentWrapper::DocumentWrapper(Document& document)
: NodeWrapper(document)
{
put_native_function("getElementById", get_element_by_id, 1);
put_native_function("querySelector", query_selector, 1);
put_native_function("querySelectorAll", query_selector_all, 1);
}
@ -86,6 +87,23 @@ JS::Value DocumentWrapper::get_element_by_id(JS::Interpreter& interpreter)
return wrap(interpreter.heap(), const_cast<Element&>(*element));
}
JS::Value DocumentWrapper::query_selector(JS::Interpreter& interpreter)
{
auto* document = document_from(interpreter);
if (!document)
return {};
if (!interpreter.argument_count())
return interpreter.throw_exception<JS::TypeError>("querySelector() needs one argument");
auto selector = interpreter.argument(0).to_string(interpreter);
if (interpreter.exception())
return {};
// FIXME: Throw if selector is invalid
auto element = document->query_selector(selector);
if (!element)
return JS::js_null();
return wrap(interpreter.heap(), *element);
}
JS::Value DocumentWrapper::query_selector_all(JS::Interpreter& interpreter)
{
auto* document = document_from(interpreter);
@ -96,6 +114,7 @@ JS::Value DocumentWrapper::query_selector_all(JS::Interpreter& interpreter)
auto selector = interpreter.argument(0).to_string(interpreter);
if (interpreter.exception())
return {};
// FIXME: Throw if selector is invalid
auto elements = document->query_selector_all(selector);
// FIXME: This should be a static NodeList, not a plain JS::Array.
auto* node_list = JS::Array::create(interpreter.global_object());

1
Libraries/LibWeb/Bindings/DocumentWrapper.h
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@ -43,6 +43,7 @@ private:
virtual const char* class_name() const override { return "DocumentWrapper"; }
static JS::Value get_element_by_id(JS::Interpreter&);
static JS::Value query_selector(JS::Interpreter&);
static JS::Value query_selector_all(JS::Interpreter&);
};