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LibWeb: Add Element.getAttribute() and Element.setAttribute() :^)

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This commit is contained in:
Andreas Kling 2020-05-26 12:27:10 +02:00
parent b5788594f9
commit 8ff4ebb589
Notes: sideshowbarker 2024-07-19 06:07:57 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/8ff4ebb5899
2 changed files with 49 additions and 0 deletions
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46
Libraries/LibWeb/Bindings/ElementWrapper.cpp
View File

@ -27,6 +27,7 @@
#include <AK/FlyString.h>
#include <AK/Function.h>
#include <LibJS/Interpreter.h>
#include <LibJS/Runtime/Error.h>
#include <LibJS/Runtime/PrimitiveString.h>
#include <LibJS/Runtime/Value.h>
#include <LibWeb/Bindings/ElementWrapper.h>
@ -40,6 +41,10 @@ ElementWrapper::ElementWrapper(Element& element)
{
put_native_property("innerHTML", inner_html_getter, inner_html_setter);
put_native_property("id", id_getter, id_setter);
u8 attributes = JS::Attribute::Configurable | JS::Attribute::Enumerable | JS::Attribute::Writable;
put_native_function("getAttribute", get_attribute, 1, attributes);
put_native_function("setAttribute", set_attribute, 2, attributes);
}
ElementWrapper::~ElementWrapper()
@ -65,6 +70,47 @@ static Element* impl_from(JS::Interpreter& interpreter)
return &static_cast<ElementWrapper*>(this_object)->node();
}
JS::Value ElementWrapper::get_attribute(JS::Interpreter& interpreter)
{
auto* impl = impl_from(interpreter);
if (!impl)
return {};
if (interpreter.argument_count() < 1)
return interpreter.throw_exception<JS::TypeError>("getAttribute() needs one argument");
auto attribute_name = interpreter.argument(0).to_string(interpreter);
if (interpreter.exception())
return {};
auto attribute_value = impl->attribute(attribute_name);
if (attribute_value.is_null())
return JS::js_null();
return JS::js_string(interpreter, attribute_value);
}
JS::Value ElementWrapper::set_attribute(JS::Interpreter& interpreter)
{
auto* impl = impl_from(interpreter);
if (!impl)
return {};
if (interpreter.argument_count() < 2)
return interpreter.throw_exception<JS::TypeError>("setAttribute() needs two arguments");
auto attribute_name = interpreter.argument(0).to_string(interpreter);
if (interpreter.exception())
return {};
auto attribute_value = interpreter.argument(1).to_string(interpreter);
if (interpreter.exception())
return {};
impl->set_attribute(attribute_name, attribute_value);
return JS::js_undefined();
}
JS::Value ElementWrapper::inner_html_getter(JS::Interpreter& interpreter)
{
if (auto* impl = impl_from(interpreter))

3
Libraries/LibWeb/Bindings/ElementWrapper.h
View File

@ -47,6 +47,9 @@ private:
static JS::Value id_getter(JS::Interpreter&);
static void id_setter(JS::Interpreter&, JS::Value);
static JS::Value get_attribute(JS::Interpreter&);
static JS::Value set_attribute(JS::Interpreter&);
};
}