ladybird/Userland/Libraries/LibWeb/HTML/Plugin.cpp
Andreas Kling bfd354492e LibWeb: Put most LibWeb GC objects in type-specific heap blocks
With this change, we now have ~1200 CellAllocators across both LibJS and
LibWeb in a normal WebContent instance.

This gives us a minimum heap size of 4.7 MiB in the scenario where we
only have one cell allocated per type. Of course, in practice there will
be many more of each type, so the effective overhead is quite a bit
smaller than that in practice.

I left a few types unconverted to this mechanism because I got tired of
doing this. :^)
2023-11-19 22:00:48 +01:00

134 lines
4.5 KiB
C++

/*
* Copyright (c) 2023, Luke Wilde <lukew@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/HTML/Plugin.h>
#include <LibWeb/HTML/Scripting/Environments.h>
#include <LibWeb/HTML/Window.h>
#include <LibWeb/Page/Page.h>
namespace Web::HTML {
JS_DEFINE_ALLOCATOR(Plugin);
Plugin::Plugin(JS::Realm& realm, String name)
: Bindings::LegacyPlatformObject(realm)
, m_name(move(name))
{
}
Plugin::~Plugin() = default;
void Plugin::initialize(JS::Realm& realm)
{
Base::initialize(realm);
set_prototype(&Bindings::ensure_web_prototype<Bindings::PluginPrototype>(realm, "Plugin"));
}
// https://html.spec.whatwg.org/multipage/system-state.html#dom-plugin-name
String const& Plugin::name() const
{
// The Plugin interface's name getter steps are to return this's name.
return m_name;
}
// https://html.spec.whatwg.org/multipage/system-state.html#dom-plugin-description
String Plugin::description() const
{
// The Plugin interface's description getter steps are to return "Portable Document Format".
static String description_string = "Portable Document Format"_string;
return description_string;
}
// https://html.spec.whatwg.org/multipage/system-state.html#dom-plugin-filename
String Plugin::filename() const
{
// The Plugin interface's filename getter steps are to return "internal-pdf-viewer".
static String filename_string = "internal-pdf-viewer"_string;
return filename_string;
}
// https://html.spec.whatwg.org/multipage/system-state.html#pdf-viewing-support:support-named-properties-3
Vector<DeprecatedString> Plugin::supported_property_names() const
{
// The Plugin interface supports named properties. If the user agent's PDF viewer supported is true, then they are the PDF viewer mime types. Otherwise, they are the empty list.
auto const& window = verify_cast<HTML::Window>(HTML::relevant_global_object(*this));
VERIFY(window.page());
if (!window.page()->pdf_viewer_supported())
return {};
// https://html.spec.whatwg.org/multipage/system-state.html#pdf-viewer-mime-types
static Vector<DeprecatedString> mime_types = {
"application/pdf"sv,
"text/pdf"sv,
};
return mime_types;
}
// https://html.spec.whatwg.org/multipage/system-state.html#pdf-viewing-support:supports-indexed-properties-3
bool Plugin::is_supported_property_index(u32 index) const
{
// The Plugin interface supports indexed properties. The supported property indices are the indices of this's relevant global object's PDF viewer mime type objects.
auto& window = verify_cast<HTML::Window>(HTML::relevant_global_object(*this));
return index < window.pdf_viewer_mime_type_objects().size();
}
// https://html.spec.whatwg.org/multipage/system-state.html#dom-plugin-length
size_t Plugin::length() const
{
// The Plugin interface's length getter steps are to return this's relevant global object's PDF viewer mime type objects's size.
auto& window = verify_cast<HTML::Window>(HTML::relevant_global_object(*this));
return window.pdf_viewer_mime_type_objects().size();
}
// https://html.spec.whatwg.org/multipage/system-state.html#dom-plugin-item
JS::GCPtr<MimeType> Plugin::item(u32 index) const
{
// 1. Let mimeTypes be this's relevant global object's PDF viewer mime type objects.
auto& window = verify_cast<HTML::Window>(HTML::relevant_global_object(*this));
auto mime_types = window.pdf_viewer_mime_type_objects();
// 2. If index < mimeType's size, then return mimeTypes[index].
if (index < mime_types.size())
return mime_types[index];
// 3. Return null.
return nullptr;
}
JS::GCPtr<MimeType> Plugin::named_item(FlyString const& name) const
{
// 1. For each MimeType mimeType of this's relevant global object's PDF viewer mime type objects: if mimeType's type is name, then return mimeType.
auto& window = verify_cast<HTML::Window>(HTML::relevant_global_object(*this));
auto mime_types = window.pdf_viewer_mime_type_objects();
for (auto& mime_type : mime_types) {
if (mime_type->type() == name)
return mime_type;
}
// 2. Return null.
return nullptr;
}
WebIDL::ExceptionOr<JS::Value> Plugin::item_value(size_t index) const
{
auto return_value = item(index);
if (!return_value)
return JS::js_null();
return return_value.ptr();
}
WebIDL::ExceptionOr<JS::Value> Plugin::named_item_value(FlyString const& name) const
{
auto return_value = named_item(name);
if (!return_value)
return JS::js_null();
return return_value.ptr();
}
}