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LibWeb: Introduce the Environment Settings Object

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The environment settings object is effectively the context a piece of
script is running under, for example, it contains the origin,
responsible document, realm, global object and event loop for the
current context. This effectively replaces ScriptExecutionContext, but
it cannot be removed in this commit as EventTarget still depends on it.

https://html.spec.whatwg.org/multipage/webappapis.html#environment-settings-object
This commit is contained in:
Luke Wilde 2021-10-14 16:12:53 +01:00 • committed by Linus Groh
parent 4db5406d62
commit f71f404e0c
29 changed files with 883 additions and 86 deletions
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55
Tests/LibWeb/test-web.cpp
View file

@ -11,7 +11,9 @@
#include <LibGUI/Window.h>
#include <LibTest/JavaScriptTestRunner.h>
#include <LibWeb/Bindings/MainThreadVM.h>
#include <LibWeb/Bindings/WindowObject.h>
#include <LibWeb/HTML/Parser/HTMLParser.h>
#include <LibWeb/HTML/Scripting/WindowEnvironmentSettingsObject.h>
#include <LibWeb/InProcessWebView.h>
#include <LibWeb/Loader/ResourceLoader.h>
@ -24,6 +26,7 @@ RefPtr<GUI::Application> g_app;
Optional<URL> next_page_to_load;
Vector<Function<JS::ThrowCompletionOr<void>(JS::Object&)>> after_initial_load_hooks;
Vector<Function<JS::ThrowCompletionOr<void>(JS::Object&)>> before_initial_load_hooks;
RefPtr<Web::DOM::Document> g_current_interpreter_document;
TESTJS_MAIN_HOOK()
{
@ -38,7 +41,51 @@ TESTJS_MAIN_HOOK()
g_page_view = view;
}
TESTJS_GLOBAL_FUNCTION(load_local_page, loadLocalPage)
struct TestWebGlobalObject : public Web::Bindings::WindowObject {
JS_OBJECT(TestWebGlobalObject, Web::Bindings::WindowObject);
public:
TestWebGlobalObject(Web::DOM::Window& window)
: Web::Bindings::WindowObject(window)
{
}
virtual ~TestWebGlobalObject() override = default;
virtual void initialize_global_object() override;
JS_DECLARE_NATIVE_FUNCTION(load_local_page);
JS_DECLARE_NATIVE_FUNCTION(after_initial_page_load);
JS_DECLARE_NATIVE_FUNCTION(before_initial_page_load);
JS_DECLARE_NATIVE_FUNCTION(wait_for_page_to_load);
};
void TestWebGlobalObject::initialize_global_object()
{
Base::initialize_global_object();
define_native_function("loadLocalPage", load_local_page, 1, JS::default_attributes);
define_native_function("afterInitialPageLoad", after_initial_page_load, 1, JS::default_attributes);
define_native_function("beforeInitialPageLoad", before_initial_page_load, 1, JS::default_attributes);
define_native_function("waitForPageToLoad", wait_for_page_to_load, 0, JS::default_attributes);
}
TESTJS_CREATE_INTERPRETER_HOOK()
{
// FIXME: This is a hack as the document we create needs to stay alive the entire time and we don't have insight into JavaScriptTestRUnner from here to work out the lifetime from here.
g_current_interpreter_document = Web::DOM::Document::create();
// FIXME: Use WindowProxy as the globalThis value.
auto interpreter = JS::Interpreter::create<TestWebGlobalObject>(*g_vm, g_current_interpreter_document->window());
// FIXME: Work out the creation URL.
AK::URL creation_url;
Web::HTML::WindowEnvironmentSettingsObject::setup(creation_url, g_vm->running_execution_context());
return interpreter;
}
JS_DEFINE_NATIVE_FUNCTION(TestWebGlobalObject::load_local_page)
{
auto name = TRY(vm.argument(0).to_string(global_object));
@ -54,7 +101,7 @@ TESTJS_GLOBAL_FUNCTION(load_local_page, loadLocalPage)
return JS::js_undefined();
}
TESTJS_GLOBAL_FUNCTION(after_initial_page_load, afterInitialPageLoad)
JS_DEFINE_NATIVE_FUNCTION(TestWebGlobalObject::after_initial_page_load)
{
auto function = vm.argument(0);
if (!function.is_function()) {
@ -69,7 +116,7 @@ TESTJS_GLOBAL_FUNCTION(after_initial_page_load, afterInitialPageLoad)
return JS::js_undefined();
}
TESTJS_GLOBAL_FUNCTION(before_initial_page_load, beforeInitialPageLoad)
JS_DEFINE_NATIVE_FUNCTION(TestWebGlobalObject::before_initial_page_load)
{
auto function = vm.argument(0);
if (!function.is_function()) {
@ -84,7 +131,7 @@ TESTJS_GLOBAL_FUNCTION(before_initial_page_load, beforeInitialPageLoad)
return JS::js_undefined();
}
TESTJS_GLOBAL_FUNCTION(wait_for_page_to_load, waitForPageToLoad)
JS_DEFINE_NATIVE_FUNCTION(TestWebGlobalObject::wait_for_page_to_load)
{
// Create a new parser and immediately get its document to replace the old interpreter.
auto document = Web::DOM::Document::create();