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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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28
Userland/Libraries/LibWeb/Bindings/CallbackType.h Normal file
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@ -0,0 +1,28 @@
/*
* Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibJS/Heap/Handle.h>
#include <LibWeb/Forward.h>
namespace Web::Bindings {
// https://heycam.github.io/webidl/#idl-callback-interface
struct CallbackType {
CallbackType(JS::Handle<JS::Object> callback, HTML::EnvironmentSettingsObject& callback_context)
: callback(move(callback))
, callback_context(callback_context)
{
}
JS::Handle<JS::Object> callback;
// https://heycam.github.io/webidl/#dfn-callback-context
HTML::EnvironmentSettingsObject& callback_context;
};
}

7
Userland/Libraries/LibWeb/Bindings/WindowObject.cpp
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@ -41,6 +41,7 @@
#include <LibWeb/HTML/BrowsingContext.h>
#include <LibWeb/HTML/EventHandler.h>
#include <LibWeb/HTML/Scripting/ClassicScript.h>
#include <LibWeb/HTML/Scripting/Environments.h>
#include <LibWeb/Origin.h>
#include <LibWeb/Page/Page.h>
#include <LibWeb/WebAssembly/WebAssemblyObject.h>
@ -232,7 +233,8 @@ JS_DEFINE_NATIVE_FUNCTION(WindowObject::set_interval)
// using a NativeFunction for the latter is a workaround so that we can reuse the
// DOM::Timer API unaltered (always expects a JS::FunctionObject).
callback = JS::NativeFunction::create(global_object, "", [impl, script_source = move(script_source)](auto&, auto&) mutable {
auto script = HTML::ClassicScript::create(impl->associated_document().url().to_string(), script_source, impl->associated_document().realm(), AK::URL());
auto& settings_object = verify_cast<HTML::EnvironmentSettingsObject>(*impl->associated_document().realm().host_defined());
auto script = HTML::ClassicScript::create(impl->associated_document().url().to_string(), script_source, settings_object, AK::URL());
return script->run();
});
}
@ -265,7 +267,8 @@ JS_DEFINE_NATIVE_FUNCTION(WindowObject::set_timeout)
// using a NativeFunction for the latter is a workaround so that we can reuse the
// DOM::Timer API unaltered (always expects a JS::FunctionObject).
callback = JS::NativeFunction::create(global_object, "", [impl, script_source = move(script_source)](auto&, auto&) mutable {
auto script = HTML::ClassicScript::create(impl->associated_document().url().to_string(), script_source, impl->associated_document().realm(), AK::URL());
auto& settings_object = verify_cast<HTML::EnvironmentSettingsObject>(*impl->associated_document().realm().host_defined());
auto script = HTML::ClassicScript::create(impl->associated_document().url().to_string(), script_source, settings_object, AK::URL());
return script->run();
});
}

2
Userland/Libraries/LibWeb/Bindings/WindowObject.h
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@ -17,7 +17,7 @@
namespace Web {
namespace Bindings {
class WindowObject final
class WindowObject
: public JS::GlobalObject
, public Weakable<WindowObject> {
JS_OBJECT(WindowObject, JS::GlobalObject);