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LibWeb: Create canvas bitmap when not existing in toDataURL and toBlob

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Bastiaan van der Plaat 2023-09-16 22:00:37 +02:00 • committed by Andreas Kling
parent d24e07579f
commit 5e7a82a853
5 changed files with 34 additions and 3 deletions
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10
Userland/Libraries/LibWeb/HTML/HTMLCanvasElement.cpp
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@ -246,8 +246,12 @@ static ErrorOr<SerializeBitmapResult> serialize_bitmap(Gfx::Bitmap const& bitmap
}
// https://html.spec.whatwg.org/multipage/canvas.html#dom-canvas-todataurl
String HTMLCanvasElement::to_data_url(StringView type, Optional<double> quality) const
String HTMLCanvasElement::to_data_url(StringView type, Optional<double> quality)
{
// It is possible the the canvas doesn't have a associated bitmap so create one
if (!bitmap())
create_bitmap();
// FIXME: 1. If this canvas element's bitmap's origin-clean flag is set to false, then throw a "SecurityError" DOMException.
// 2. If this canvas element's bitmap has no pixels (i.e. either its horizontal dimension or its vertical dimension is zero)
@ -275,6 +279,10 @@ String HTMLCanvasElement::to_data_url(StringView type, Optional<double> quality)
// https://html.spec.whatwg.org/multipage/canvas.html#dom-canvas-toblob
WebIDL::ExceptionOr<void> HTMLCanvasElement::to_blob(JS::NonnullGCPtr<WebIDL::CallbackType> callback, StringView type, Optional<double> quality)
{
// It is possible the the canvas doesn't have a associated bitmap so create one
if (!bitmap())
create_bitmap();
// FIXME: 1. If this canvas element's bitmap's origin-clean flag is set to false, then throw a "SecurityError" DOMException.
// 2. Let result be null.