| /* |
| * (C) 1999-2003 Lars Knoll (knoll@kde.org) |
| * Copyright (C) 2004-2017 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. |
| */ |
| |
| #include "config.h" |
| #include "CSSImageValue.h" |
| |
| #include "CSSMarkup.h" |
| #include "CSSPrimitiveValue.h" |
| #include "CSSValueKeywords.h" |
| #include "CachedImage.h" |
| #include "CachedResourceLoader.h" |
| #include "CachedResourceRequest.h" |
| #include "CachedResourceRequestInitiators.h" |
| #include "DeprecatedCSSOMPrimitiveValue.h" |
| #include "Document.h" |
| #include "Element.h" |
| |
| namespace WebCore { |
| |
| CSSImageValue::CSSImageValue(URL&& url, LoadedFromOpaqueSource loadedFromOpaqueSource) |
| : CSSValue(ImageClass) |
| , m_url(WTFMove(url)) |
| , m_accessedImage(false) |
| , m_loadedFromOpaqueSource(loadedFromOpaqueSource) |
| { |
| } |
| |
| CSSImageValue::CSSImageValue(CachedImage& image) |
| : CSSValue(ImageClass) |
| , m_url(image.url()) |
| , m_cachedImage(&image) |
| , m_accessedImage(true) |
| { |
| } |
| |
| |
| CSSImageValue::~CSSImageValue() = default; |
| |
| bool CSSImageValue::isPending() const |
| { |
| return !m_accessedImage; |
| } |
| |
| CachedImage* CSSImageValue::loadImage(CachedResourceLoader& loader, const ResourceLoaderOptions& options) |
| { |
| if (!m_accessedImage) { |
| m_accessedImage = true; |
| |
| ResourceLoaderOptions loadOptions = options; |
| loadOptions.loadedFromOpaqueSource = m_loadedFromOpaqueSource; |
| CachedResourceRequest request(ResourceRequest(loader.document()->completeURL(m_url.string())), loadOptions); |
| if (m_initiatorName.isEmpty()) |
| request.setInitiator(cachedResourceRequestInitiators().css); |
| else |
| request.setInitiator(m_initiatorName); |
| |
| if (options.mode == FetchOptions::Mode::Cors) { |
| ASSERT(loader.document()); |
| request.updateForAccessControl(*loader.document()); |
| } |
| m_cachedImage = loader.requestImage(WTFMove(request)).value_or(nullptr); |
| } |
| return m_cachedImage.get(); |
| } |
| |
| bool CSSImageValue::traverseSubresources(const WTF::Function<bool (const CachedResource&)>& handler) const |
| { |
| if (!m_cachedImage) |
| return false; |
| return handler(*m_cachedImage); |
| } |
| |
| bool CSSImageValue::equals(const CSSImageValue& other) const |
| { |
| return m_url == other.m_url; |
| } |
| |
| String CSSImageValue::customCSSText() const |
| { |
| return serializeURL(m_url); |
| } |
| |
| Ref<DeprecatedCSSOMValue> CSSImageValue::createDeprecatedCSSOMWrapper(CSSStyleDeclaration& styleDeclaration) const |
| { |
| // NOTE: We expose CSSImageValues as URI primitive values in CSSOM to maintain old behavior. |
| return DeprecatedCSSOMPrimitiveValue::create(CSSPrimitiveValue::create(m_url, CSSPrimitiveValue::CSS_URI), styleDeclaration); |
| } |
| |
| bool CSSImageValue::knownToBeOpaque(const RenderElement& renderer) const |
| { |
| if (!m_cachedImage) |
| return false; |
| return m_cachedImage->currentFrameKnownToBeOpaque(&renderer); |
| } |
| |
| } // namespace WebCore |