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LibWeb: Convert callers of ImageCodecPlugin to the async API

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The HTMLLinkElement caller is a bit hairy, so we shove an await() in
there temporarily. This is sure to cause fun times for anyone debugging
task/microtask execution order.
This commit is contained in:
Andrew Kaster 2024-04-19 15:55:54 -06:00 • committed by Andrew Kaster
commit 651e78fedb
Notes: sideshowbarker 2024-07-17 05:58:46 +09:00
7 changed files with 78 additions and 71 deletions
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37
Userland/Libraries/LibWeb/HTML/WindowOrWorkerGlobalScope.cpp
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@ -203,7 +203,7 @@ JS::NonnullGCPtr<JS::Promise> WindowOrWorkerGlobalScopeMixin::create_image_bitma
image.visit(
[&](JS::Handle<FileAPI::Blob>& blob) {
// Run these step in parallel:
Platform::EventLoopPlugin::the().deferred_invoke([=, this]() {
Platform::EventLoopPlugin::the().deferred_invoke([=]() {
// 1. Let imageData be the result of reading image's data. If an error occurs during reading of the
// object, then reject p with an "InvalidStateError" DOMException and abort these steps.
// FIXME: I guess this is always fine for us as the data is already read.
@ -213,24 +213,27 @@ JS::NonnullGCPtr<JS::Promise> WindowOrWorkerGlobalScopeMixin::create_image_bitma
// 2. Apply the image sniffing rules to determine the file format of imageData, with MIME type of
// image (as given by image's type attribute) giving the official type.
// 3. If imageData is not in a supported image file format (e.g., it's not an image at all), or if
// imageData is corrupted in some fatal way such that the image dimensions cannot be obtained
// (e.g., a vector graphic with no natural size), then reject p with an "InvalidStateError" DOMException
// and abort these steps.
auto result = Web::Platform::ImageCodecPlugin::the().decode_image(image_data);
if (!result.has_value()) {
p->reject(WebIDL::InvalidStateError::create(this_impl().realm(), "image does not contain a supported image format"_string));
return;
}
auto on_failed_decode = [p = JS::Handle(*p)](Error&) {
// 3. If imageData is not in a supported image file format (e.g., it's not an image at all), or if
// imageData is corrupted in some fatal way such that the image dimensions cannot be obtained
// (e.g., a vector graphic with no natural size), then reject p with an "InvalidStateError" DOMException
// and abort these steps.
p->reject(WebIDL::InvalidStateError::create(relevant_realm(*p), "image does not contain a supported image format"_string));
};
// 4. Set imageBitmap's bitmap data to imageData, cropped to the source rectangle with formatting.
// If this is an animated image, imageBitmap's bitmap data must only be taken from the default image
// of the animation (the one that the format defines is to be used when animation is not supported
// or is disabled), or, if there is no such image, the first frame of the animation.
image_bitmap->set_bitmap(result.value().frames.take_first().bitmap);
auto on_successful_decode = [image_bitmap = JS::Handle(*image_bitmap), p = JS::Handle(*p)](Web::Platform::DecodedImage& result) -> ErrorOr<void> {
// 4. Set imageBitmap's bitmap data to imageData, cropped to the source rectangle with formatting.
// If this is an animated image, imageBitmap's bitmap data must only be taken from the default image
// of the animation (the one that the format defines is to be used when animation is not supported
// or is disabled), or, if there is no such image, the first frame of the animation.
image_bitmap->set_bitmap(result.frames.take_first().bitmap);
// 5. Resolve p with imageBitmap.
p->fulfill(image_bitmap);
// 5. Resolve p with imageBitmap.
p->fulfill(image_bitmap);
return {};
};
(void)Web::Platform::ImageCodecPlugin::the().decode_image(image_data, move(on_successful_decode), move(on_failed_decode));
});
},
[&](auto&) {