ladybird/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContext.cpp
Shannon Booth bad44f8fc9 LibWeb: Remove Bindings/Forward.h from LibWeb/Forward.h
This was resulting in a whole lot of rebuilding whenever a new IDL
interface was added.

Instead, just directly include the prototype in every C++ file which
needs it. While we only really need a forward declaration in each cpp
file; including the full prototype header (which itself only includes
LibJS/Object.h, which is already transitively brought in by
PlatformObject) - it seems like a small price to pay compared to what
feels like a full rebuild of LibWeb whenever a new IDL file is added.

Given all of these includes are only needed for the ::initialize
method, there is probably a smart way of avoiding this problem
altogether. I've considered both using some macro trickery or generating
these functions somehow instead.
2024-04-27 18:29:35 -04:00

72 lines
3.3 KiB
C++

/*
* Copyright (c) 2022, Luke Wilde <lukew@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/Bindings/WebGLRenderingContextPrototype.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/HTML/HTMLCanvasElement.h>
#include <LibWeb/WebGL/EventNames.h>
#include <LibWeb/WebGL/WebGLContextEvent.h>
#include <LibWeb/WebGL/WebGLRenderingContext.h>
namespace Web::WebGL {
JS_DEFINE_ALLOCATOR(WebGLRenderingContext);
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#fire-a-webgl-context-event
static void fire_webgl_context_event(HTML::HTMLCanvasElement& canvas_element, FlyString const& type)
{
// To fire a WebGL context event named e means that an event using the WebGLContextEvent interface, with its type attribute [DOM4] initialized to e, its cancelable attribute initialized to true, and its isTrusted attribute [DOM4] initialized to true, is to be dispatched at the given object.
// FIXME: Consider setting a status message.
auto event = WebGLContextEvent::create(canvas_element.realm(), type, WebGLContextEventInit {});
event->set_is_trusted(true);
event->set_cancelable(true);
canvas_element.dispatch_event(*event);
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#fire-a-webgl-context-creation-error
static void fire_webgl_context_creation_error(HTML::HTMLCanvasElement& canvas_element)
{
// 1. Fire a WebGL context event named "webglcontextcreationerror" at canvas, optionally with its statusMessage attribute set to a platform dependent string about the nature of the failure.
fire_webgl_context_event(canvas_element, EventNames::webglcontextcreationerror);
}
JS::ThrowCompletionOr<JS::GCPtr<WebGLRenderingContext>> WebGLRenderingContext::create(JS::Realm& realm, HTML::HTMLCanvasElement& canvas_element, JS::Value options)
{
// We should be coming here from getContext being called on a wrapped <canvas> element.
auto context_attributes = TRY(convert_value_to_context_attributes_dictionary(canvas_element.vm(), options));
bool created_bitmap = canvas_element.create_bitmap(/* minimum_width= */ 1, /* minimum_height= */ 1);
if (!created_bitmap) {
fire_webgl_context_creation_error(canvas_element);
return JS::GCPtr<WebGLRenderingContext> { nullptr };
}
VERIFY(canvas_element.bitmap());
auto context = OpenGLContext::create(*canvas_element.bitmap());
if (!context) {
fire_webgl_context_creation_error(canvas_element);
return JS::GCPtr<WebGLRenderingContext> { nullptr };
}
return realm.heap().allocate<WebGLRenderingContext>(realm, realm, canvas_element, context.release_nonnull(), context_attributes, context_attributes);
}
WebGLRenderingContext::WebGLRenderingContext(JS::Realm& realm, HTML::HTMLCanvasElement& canvas_element, NonnullOwnPtr<OpenGLContext> context, WebGLContextAttributes context_creation_parameters, WebGLContextAttributes actual_context_parameters)
: WebGLRenderingContextBase(realm, canvas_element, move(context), move(context_creation_parameters), move(actual_context_parameters))
{
}
WebGLRenderingContext::~WebGLRenderingContext() = default;
void WebGLRenderingContext::initialize(JS::Realm& realm)
{
Base::initialize(realm);
WEB_SET_PROTOTYPE_FOR_INTERFACE(WebGLRenderingContext);
}
}