LibWeb: Implement HTML::ImageBitmap

And the two methods of `WindowOrWorkerGlobalScope` that are used as constructors for it.
Author: https://github.com/LucasChollet Commit: 676fc5e8c6 Pull-request: https://github.com/SerenityOS/serenity/pull/23850 Reviewed-by: https://github.com/shannonbooth ✅
2025-11-02 06:10:58 +00:00 · 2024-04-04 21:48:58 -04:00 · 2024-04-04 21:48:58 -04:00 · 676fc5e8c6 · 2024-07-17 08:45:34 +09:00
commit 676fc5e8c6
parent db0519ddc1
11 changed files with 309 additions and 2 deletions
--- a/Userland/Libraries/LibWeb/HTML/ImageBitmap.cpp
+++ b/Userland/Libraries/LibWeb/HTML/ImageBitmap.cpp
@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2024, Lucas Chollet <lucas.chollet@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibGfx/Bitmap.h>
+#include <LibWeb/HTML/ImageBitmap.h>
+
+namespace Web::HTML {
+
+JS_DEFINE_ALLOCATOR(ImageBitmap);
+
+JS::NonnullGCPtr<ImageBitmap> ImageBitmap::create(JS::Realm& realm)
+{
+    return realm.heap().allocate<ImageBitmap>(realm, realm);
+}
+
+ImageBitmap::ImageBitmap(JS::Realm& realm)
+    : Bindings::PlatformObject(realm)
+{
+}
+
+void ImageBitmap::initialize(JS::Realm& realm)
+{
+    Base::initialize(realm);
+    WEB_SET_PROTOTYPE_FOR_INTERFACE(ImageBitmap);
+}
+
+void ImageBitmap::visit_edges(Cell::Visitor& visitor)
+{
+    Base::visit_edges(visitor);
+}
+
+WebIDL::ExceptionOr<void> ImageBitmap::serialization_steps(HTML::SerializationRecord&, bool, HTML::SerializationMemory&)
+{
+    // FIXME: Implement this
+    dbgln("(STUBBED) ImageBitmap::serialization_steps(HTML::SerializationRecord&, bool, HTML::SerializationMemory&)");
+    return {};
+}
+
+WebIDL::ExceptionOr<void> ImageBitmap::deserialization_steps(ReadonlySpan<u32> const&, size_t&, HTML::DeserializationMemory&)
+{
+    // FIXME: Implement this
+    dbgln("(STUBBED) ImageBitmap::deserialization_steps(ReadonlySpan<u32> const&, size_t&, HTML::DeserializationMemory&)");
+    return {};
+}
+
+WebIDL::ExceptionOr<void> ImageBitmap::transfer_steps(HTML::TransferDataHolder&)
+{
+    // FIXME: Implement this
+    dbgln("(STUBBED) ImageBitmap::transfer_steps(HTML::TransferDataHolder&)");
+    return {};
+}
+
+WebIDL::ExceptionOr<void> ImageBitmap::transfer_receiving_steps(HTML::TransferDataHolder&)
+{
+    // FIXME: Implement this
+    dbgln("(STUBBED) ImageBitmap::transfer_receiving_steps(HTML::TransferDataHolder&)");
+    return {};
+}
+
+HTML::TransferType ImageBitmap::primary_interface() const
+{
+    // FIXME: Implement this
+    dbgln("(STUBBED) ImageBitmap::primary_interface()");
+    return {};
+}
+
+// https://html.spec.whatwg.org/multipage/imagebitmap-and-animations.html#dom-imagebitmap-width
+WebIDL::UnsignedLong ImageBitmap::width() const
+{
+    // 1. If this's [[Detached]] internal slot's value is true, then return 0.
+    if (is_detached())
+        return 0;
+    // 2. Return this's width, in CSS pixels.
+    return m_width;
+}
+
+// https://html.spec.whatwg.org/multipage/imagebitmap-and-animations.html#dom-imagebitmap-height
+WebIDL::UnsignedLong ImageBitmap::height() const
+{
+    // 1. If this's [[Detached]] internal slot's value is true, then return 0.
+    if (is_detached())
+        return 0;
+    // 2. Return this's height, in CSS pixels.
+    return m_height;
+}
+
+// https://html.spec.whatwg.org/multipage/imagebitmap-and-animations.html#dom-imagebitmap-close
+void ImageBitmap::close()
+{
+    // 1. Set this's [[Detached]] internal slot value to true.
+    set_detached(true);
+
+    // 2. Unset this's bitmap data.
+    m_bitmap = nullptr;
+}
+
+void ImageBitmap::set_bitmap(RefPtr<Gfx::Bitmap> bitmap)
+{
+    m_bitmap = move(bitmap);
+    m_width = m_bitmap->width();
+    m_height = m_bitmap->height();
+}
+
+}