| /* |
| * Copyright (C) 2013 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef HTMLImportLoader_h |
| #define HTMLImportLoader_h |
| |
| #include "core/dom/DocumentParserClient.h" |
| #include "core/fetch/RawResource.h" |
| #include "core/fetch/ResourceOwner.h" |
| #include "platform/heap/Handle.h" |
| #include "wtf/OwnPtr.h" |
| #include "wtf/PassOwnPtr.h" |
| #include "wtf/Vector.h" |
| |
| namespace blink { |
| |
| class V0CustomElementSyncMicrotaskQueue; |
| class Document; |
| class DocumentWriter; |
| class HTMLImportChild; |
| class HTMLImportsController; |
| |
| |
| // Owning imported Document lifetime. It also implements ResourceClient through ResourceOwner |
| // to feed fetched bytes to the DocumentWriter of the imported document. |
| // HTMLImportLoader is owned by HTMLImportsController. |
| class HTMLImportLoader final : public GarbageCollectedFinalized<HTMLImportLoader>, public ResourceOwner<RawResource>, public DocumentParserClient { |
| USING_GARBAGE_COLLECTED_MIXIN(HTMLImportLoader); |
| public: |
| enum State { |
| StateLoading, |
| StateWritten, |
| StateParsed, |
| StateLoaded, |
| StateError |
| }; |
| |
| static HTMLImportLoader* create(HTMLImportsController* controller) |
| { |
| return new HTMLImportLoader(controller); |
| } |
| |
| ~HTMLImportLoader() override; |
| void dispose(); |
| |
| Document* document() const { return m_document.get(); } |
| void addImport(HTMLImportChild*); |
| void removeImport(HTMLImportChild*); |
| |
| void moveToFirst(HTMLImportChild*); |
| HTMLImportChild* firstImport() const { return m_imports[0]; } |
| bool isFirstImport(const HTMLImportChild* child) const { return m_imports.size() ? firstImport() == child : false; } |
| |
| bool isDone() const { return m_state == StateLoaded || m_state == StateError; } |
| bool hasError() const { return m_state == StateError; } |
| bool shouldBlockScriptExecution() const; |
| |
| void startLoading(RawResource*); |
| |
| // Tells the loader that all of the import's stylesheets finished |
| // loading. |
| // Called by Document::didRemoveAllPendingStylesheet. |
| void didRemoveAllPendingStylesheet(); |
| |
| V0CustomElementSyncMicrotaskQueue* microtaskQueue() const; |
| |
| DECLARE_VIRTUAL_TRACE(); |
| |
| private: |
| HTMLImportLoader(HTMLImportsController*); |
| |
| // RawResourceClient |
| void responseReceived(Resource*, const ResourceResponse&, PassOwnPtr<WebDataConsumerHandle>) override; |
| void dataReceived(Resource*, const char* data, size_t length) override; |
| void notifyFinished(Resource*) override; |
| String debugName() const override { return "HTMLImportLoader"; } |
| |
| // DocumentParserClient |
| |
| // Called after document parse is complete after DOMContentLoaded was dispatched. |
| void notifyParserStopped() override; |
| |
| State startWritingAndParsing(const ResourceResponse&); |
| State finishWriting(); |
| State finishParsing(); |
| State finishLoading(); |
| |
| void setState(State); |
| void didFinishLoading(); |
| bool hasPendingResources() const; |
| |
| Member<HTMLImportsController> m_controller; |
| HeapVector<Member<HTMLImportChild>> m_imports; |
| State m_state; |
| Member<Document> m_document; |
| Member<DocumentWriter> m_writer; |
| Member<V0CustomElementSyncMicrotaskQueue> m_microtaskQueue; |
| }; |
| |
| } // namespace blink |
| |
| #endif // HTMLImportLoader_h |