/* * Copyright (C) 1999 Lars Knoll ([email protected]) * (C) 1999 Antti Koivisto ([email protected]) * Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010 Apple Inc. All rights * reserved. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public License * along with this library; see the file COPYING.LIB. If not, write to * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA 02110-1301, USA. */ #ifdef UNSAFE_BUFFERS_BUILD // TODO(crbug.com/351564777): Remove this and convert code to safer constructs. #pragma allow_unsafe_buffers #endif #include "third_party/blink/renderer/core/loader/image_loader.h" #include <memory> #include <utility> #include "services/network/public/mojom/attribution.mojom-blink.h" #include "services/network/public/mojom/web_client_hints_types.mojom-blink.h" #include "third_party/blink/public/common/features.h" #include "third_party/blink/public/mojom/fetch/fetch_api_request.mojom-blink.h" #include "third_party/blink/public/platform/web_url_request.h" #include "third_party/blink/renderer/bindings/core/v8/script_controller.h" #include "third_party/blink/renderer/bindings/core/v8/script_promise_resolver.h" #include "third_party/blink/renderer/bindings/core/v8/v8_binding_for_core.h" #include "third_party/blink/renderer/core/css/css_primitive_value.h" #include "third_party/blink/renderer/core/css/css_property_name.h" #include "third_party/blink/renderer/core/css/css_property_value_set.h" #include "third_party/blink/renderer/core/dom/document.h" #include "third_party/blink/renderer/core/dom/element.h" #include "third_party/blink/renderer/core/dom/events/event.h" #include "third_party/blink/renderer/core/dom/increment_load_event_delay_count.h" #include "third_party/blink/renderer/core/execution_context/agent.h" #include "third_party/blink/renderer/core/frame/attribution_src_loader.h" #include "third_party/blink/renderer/core/frame/frame_owner.h" #include "third_party/blink/renderer/core/frame/local_frame.h" #include "third_party/blink/renderer/core/frame/local_frame_client.h" #include "third_party/blink/renderer/core/frame/settings.h" #include "third_party/blink/renderer/core/html/cross_origin_attribute.h" #include "third_party/blink/renderer/core/html/html_embed_element.h" #include "third_party/blink/renderer/core/html/html_image_element.h" #include "third_party/blink/renderer/core/html/html_object_element.h" #include "third_party/blink/renderer/core/html/html_picture_element.h" #include "third_party/blink/renderer/core/html/loading_attribute.h" #include "third_party/blink/renderer/core/html/media/html_video_element.h" #include "third_party/blink/renderer/core/html/parser/html_parser_idioms.h" #include "third_party/blink/renderer/core/html_names.h" #include "third_party/blink/renderer/core/layout/layout_image.h" #include "third_party/blink/renderer/core/layout/layout_video.h" #include "third_party/blink/renderer/core/layout/svg/layout_svg_image.h" #include "third_party/blink/renderer/core/loader/fetch_priority_attribute.h" #include "third_party/blink/renderer/core/loader/lazy_image_helper.h" #include "third_party/blink/renderer/core/probe/async_task_context.h" #include "third_party/blink/renderer/core/probe/core_probes.h" #include "third_party/blink/renderer/core/svg/graphics/svg_image.h" #include "third_party/blink/renderer/platform/bindings/exception_state.h" #include "third_party/blink/renderer/platform/bindings/script_state.h" #include "third_party/blink/renderer/platform/bindings/v8_per_isolate_data.h" #include "third_party/blink/renderer/platform/heap/cross_thread_handle.h" #include "third_party/blink/renderer/platform/heap/garbage_collected.h" #include "third_party/blink/renderer/platform/instrumentation/use_counter.h" #include "third_party/blink/renderer/platform/loader/fetch/fetch_parameters.h" #include "third_party/blink/renderer/platform/loader/fetch/memory_cache.h" #include "third_party/blink/renderer/platform/loader/fetch/resource_fetcher.h" #include "third_party/blink/renderer/platform/loader/fetch/resource_loading_log.h" #include "third_party/blink/renderer/platform/scheduler/public/event_loop.h" #include "third_party/blink/renderer/platform/weborigin/security_origin.h" #include "third_party/blink/renderer/platform/weborigin/security_policy.h" namespace blink { namespace { // This implements the HTML Standard's list of available images tuple-matching // logic [1]. In our implementation, it is only used to determine whether or not // we should skip queueing the microtask that continues the rest of the image // loading algorithm. But the actual decision to reuse the image is determined // by ResourceFetcher, and is much stricter. // [1]: // https://html.spec.whatwg.org/multipage/images.html#updating-the-image-data:list-of-available-images bool CanReuseFromListOfAvailableImages( const Resource* resource, CrossOriginAttributeValue cross_origin_attribute, const SecurityOrigin* origin) { … } } // namespace class ImageLoader::Task { … }; ImageLoader::ImageLoader(Element* element) : … { … } ImageLoader::~ImageLoader() = default; void ImageLoader::Dispose() { … } static bool ImageTypeNeedsDecode(const Image& image) { … } void ImageLoader::DispatchDecodeRequestsIfComplete() { … } void ImageLoader::DecodeRequestFinished(uint64_t request_id, bool success) { … } void ImageLoader::RejectPendingDecodes(UpdateType update_type) { … } void ImageLoader::Trace(Visitor* visitor) const { … } void ImageLoader::SetImageForTest(ImageResourceContent* new_image) { … } bool ImageLoader::ImageIsPotentiallyAvailable() const { … } void ImageLoader::ClearImage() { … } void ImageLoader::SetImageWithoutConsideringPendingLoadEvent( ImageResourceContent* new_image_content) { … } static void ConfigureRequest( FetchParameters& params, Element& element, const ClientHintsPreferences& client_hints_preferences) { … } inline void ImageLoader::QueuePendingErrorEvent() { … } inline void ImageLoader::CrossSiteOrCSPViolationOccurred( AtomicString image_source_url) { … } inline void ImageLoader::ClearFailedLoadURL() { … } inline void ImageLoader::EnqueueImageLoadingMicroTask( UpdateFromElementBehavior update_behavior) { … } void ImageLoader::UpdateImageState(ImageResourceContent* new_image_content) { … } void ImageLoader::DoUpdateFromElement(const DOMWrapperWorld* world, UpdateFromElementBehavior update_behavior, UpdateType update_type, bool force_blocking) { … } void ImageLoader::UpdateFromElement(UpdateFromElementBehavior update_behavior, bool force_blocking) { … } KURL ImageLoader::ImageSourceToKURL(AtomicString image_source_url) const { … } bool ImageLoader::ShouldLoadImmediately(const KURL& url) const { … } void ImageLoader::ImageChanged(ImageResourceContent* content, CanDeferInvalidation) { … } void ImageLoader::ImageNotifyFinished(ImageResourceContent* content) { … } LayoutImageResource* ImageLoader::GetLayoutImageResource() const { … } void ImageLoader::OnAttachLayoutTree() { … } void ImageLoader::UpdateLayoutObject() { … } ResourcePriority ImageLoader::ComputeResourcePriority() const { … } bool ImageLoader::HasPendingEvent() const { … } void ImageLoader::DispatchPendingLoadEvent( std::unique_ptr<IncrementLoadEventDelayCount> count) { … } void ImageLoader::DispatchPendingErrorEvent( std::unique_ptr<IncrementLoadEventDelayCount> count) { … } bool ImageLoader::GetImageAnimationPolicy( mojom::blink::ImageAnimationPolicy& policy) { … } ScriptPromise<IDLUndefined> ImageLoader::Decode( ScriptState* script_state, ExceptionState& exception_state) { … } void ImageLoader::LoadDeferredImage(bool force_blocking, bool update_from_microtask) { … } void ImageLoader::ElementDidMoveToNewDocument() { … } // Indicates the next available id that we can use to uniquely identify a decode // request. uint64_t ImageLoader::DecodeRequest::s_next_request_id_ = …; ImageLoader::DecodeRequest::DecodeRequest( ImageLoader* loader, ScriptPromiseResolver<IDLUndefined>* resolver) : … { … } void ImageLoader::DecodeRequest::Resolve() { … } void ImageLoader::DecodeRequest::Reject() { … } void ImageLoader::DecodeRequest::ProcessForTask() { … } void ImageLoader::DecodeRequest::NotifyDecodeDispatched() { … } void ImageLoader::DecodeRequest::Trace(Visitor* visitor) const { … } } // namespace blink
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