Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Libraries/LibWeb/HTML/ListOfAvailableImages.cpp

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2023, Andreas Kling <andreas@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibWeb/HTML/DecodedImageData.h>
+#include <LibWeb/HTML/ListOfAvailableImages.h>
+
+namespace Web::HTML {
+
+JS_DEFINE_ALLOCATOR(ListOfAvailableImages);
+
+ListOfAvailableImages::ListOfAvailableImages() = default;
+ListOfAvailableImages::~ListOfAvailableImages() = default;
+
+bool ListOfAvailableImages::Key::operator==(Key const& other) const
+{
+    return url == other.url && mode == other.mode && origin == other.origin;
+}
+
+u32 ListOfAvailableImages::Key::hash() const
+{
+    if (!cached_hash.has_value()) {
+        u32 url_hash = Traits<URL::URL>::hash(url);
+        u32 mode_hash = static_cast<u32>(mode);
+        u32 origin_hash = 0;
+        if (origin.has_value())
+            origin_hash = Traits<URL::Origin>::hash(origin.value());
+        cached_hash = pair_int_hash(url_hash, pair_int_hash(mode_hash, origin_hash));
+    }
+    return cached_hash.value();
+}
+
+void ListOfAvailableImages::visit_edges(JS::Cell::Visitor& visitor)
+{
+    Base::visit_edges(visitor);
+    for (auto& it : m_images)
+        visitor.visit(it.value->image_data);
+}
+
+void ListOfAvailableImages::add(Key const& key, JS::NonnullGCPtr<DecodedImageData> image_data, bool ignore_higher_layer_caching)
+{
+    m_images.set(key, make<Entry>(image_data, ignore_higher_layer_caching));
+}
+
+void ListOfAvailableImages::remove(Key const& key)
+{
+    m_images.remove(key);
+}
+
+ListOfAvailableImages::Entry* ListOfAvailableImages::get(Key const& key)
+{
+    auto it = m_images.find(key);
+    if (it == m_images.end())
+        return nullptr;
+    return it->value.ptr();
+}
+
+}