LibWeb: Share decoded images at the Resource level :^)

This patch adds ImageResource as a subclass of Resource. This new class
also keeps a Gfx::ImageDecoder so that we can share decoded bitmaps
between all clients of an image resource inside LibWeb.

With this, we now share both encoded and decoded data for images. :^)

I had to change how the purgeable-volatile flag is updated to keep the
volatile-images-outside-the-visible-viewport optimization working.
HTMLImageElement now inherits from ImageResourceClient (a subclass of
ResourceClient with additional image-specific stuff) and informs its
ImageResource about whether it's inside the viewport or outside.

This is pretty awesome! :^)

1 files changed, 2 insertions, 2 deletions

diff --git a/Libraries/LibWeb/Loader/ResourceLoader.h b/Libraries/LibWeb/Loader/ResourceLoader.h
index 34968790c3..bd3591e5d9 100644
--- a/Libraries/LibWeb/Loader/ResourceLoader.h
+++ b/Libraries/LibWeb/Loader/ResourceLoader.h
@@ -29,7 +29,7 @@
 #include <AK/Function.h>
 #include <AK/URL.h>
 #include <LibCore/Object.h>
-#include <LibWeb/Forward.h>
+#include <LibWeb/Loader/Resource.h>
 
 namespace Protocol {
 class Client;
@@ -42,7 +42,7 @@ class ResourceLoader : public Core::Object {
 public:
     static ResourceLoader& the();
 
-    RefPtr<Resource> load_resource(const LoadRequest&);
+    RefPtr<Resource> load_resource(Resource::Type, const LoadRequest&);
 
     void load(const URL&, Function<void(const ByteBuffer&, const HashMap<String, String, CaseInsensitiveStringTraits>& response_headers)> success_callback, Function<void(const String&)> error_callback = nullptr);
     void load_sync(const URL&, Function<void(const ByteBuffer&, const HashMap<String, String, CaseInsensitiveStringTraits>& response_headers)> success_callback, Function<void(const String&)> error_callback = nullptr);