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LibWeb: Add Storage interface and window.localStorage

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This is a naive-but-somewhat-functional initial implementation of
HTML Storage.

Note that there is no persistence yet, everything is in-process only,
and one local Storage object per origin.
This commit is contained in:
Andreas Kling 2022-02-08 19:38:29 +01:00
parent a856cf8d4c
commit 47979996e8
10 changed files with 250 additions and 6 deletions
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13
Userland/Libraries/LibWeb/Bindings/WindowObject.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2020-2022, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
@ -32,6 +32,7 @@
#include <LibWeb/Bindings/Replaceable.h>
#include <LibWeb/Bindings/ScreenWrapper.h>
#include <LibWeb/Bindings/SelectionWrapper.h>
#include <LibWeb/Bindings/StorageWrapper.h>
#include <LibWeb/Bindings/WindowObject.h>
#include <LibWeb/Bindings/WindowObjectHelper.h>
#include <LibWeb/Crypto/Crypto.h>
@ -42,6 +43,7 @@
#include <LibWeb/HTML/EventHandler.h>
#include <LibWeb/HTML/Scripting/ClassicScript.h>
#include <LibWeb/HTML/Scripting/Environments.h>
#include <LibWeb/HTML/Storage.h>
#include <LibWeb/Origin.h>
#include <LibWeb/Page/Page.h>
#include <LibWeb/WebAssembly/WebAssemblyObject.h>
@ -110,6 +112,8 @@ void WindowObject::initialize_global_object()
define_direct_property("CSS", heap().allocate<CSSNamespace>(*this, *this), 0);
define_native_accessor("localStorage", local_storage_getter, {}, attr);
// Legacy
define_native_accessor("event", event_getter, event_setter, JS::Attribute::Enumerable);
@ -646,6 +650,13 @@ JS_DEFINE_NATIVE_FUNCTION(WindowObject::screen_y_getter)
return JS::Value(impl->screen_y());
}
JS_DEFINE_NATIVE_FUNCTION(WindowObject::local_storage_getter)
{
auto* impl = TRY(impl_from(vm, global_object));
// FIXME: localStorage may throw. We have to deal with that here.
return wrap(global_object, *impl->local_storage());
}
#define __ENUMERATE(attribute, event_name) \
JS_DEFINE_NATIVE_FUNCTION(WindowObject::attribute##_getter) \
{ \