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LibWeb: Fix mismatching Resource subclass types

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This was a confusing bug: ImageStyleValue loaded its image resource as
a Generic resource, while HTMLImageElement loaded as Image.

This patch fixes the issue and adds an assertion to verify that we only
share resources that have the same C++ client class type.
This commit is contained in:
Andreas Kling 2020-06-05 23:32:23 +02:00
parent 3337365000
commit 5dc8c4a24c
5 changed files with 13 additions and 3 deletions
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3
Libraries/LibWeb/CSS/StyleValue.cpp
View file

@ -293,13 +293,14 @@ ImageStyleValue::ImageStyleValue(const URL& url, Document& document)
{
LoadRequest request;
request.set_url(url);
set_resource(ResourceLoader::the().load_resource(Resource::Type::Generic, request));
set_resource(ResourceLoader::the().load_resource(Resource::Type::Image, request));
}
void ImageStyleValue::resource_did_load()
{
if (!m_document)
return;
// FIXME: Use the shared decoder from ImageResource!
m_bitmap = Gfx::load_png_from_memory(resource()->encoded_data().data(), resource()->encoded_data().size());
if (!m_bitmap)
return;

4
Libraries/LibWeb/CSS/StyleValue.h
View file

@ -36,7 +36,7 @@
#include <LibGfx/Color.h>
#include <LibWeb/CSS/Length.h>
#include <LibWeb/CSS/PropertyID.h>
#include <LibWeb/Loader/Resource.h>
#include <LibWeb/Loader/ImageResource.h>
namespace Web {
@ -302,7 +302,7 @@ private:
class ImageStyleValue final
: public StyleValue
, public ResourceClient {
, public ImageResourceClient {
public:
static NonnullRefPtr<ImageStyleValue> create(const URL& url, Document& document) { return adopt(*new ImageStyleValue(url, document)); }
virtual ~ImageStyleValue() override { }