| /* |
| * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved. |
| * Copyright (C) 2013 Apple 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: |
| * |
| * 1. Redistributions of source code must retain the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer. |
| * 2. 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "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 HOLDER 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. |
| */ |
| |
| #include "config.h" |
| #include "RenderLayerFilterInfo.h" |
| |
| #include "CachedSVGDocument.h" |
| #include "CachedSVGDocumentReference.h" |
| #include "FilterEffectRenderer.h" |
| #include "RenderSVGResourceFilter.h" |
| #include <wtf/NeverDestroyed.h> |
| |
| namespace WebCore { |
| |
| HashMap<const RenderLayer*, std::unique_ptr<RenderLayer::FilterInfo>>& RenderLayer::FilterInfo::map() |
| { |
| static NeverDestroyed<HashMap<const RenderLayer*, std::unique_ptr<FilterInfo>>> map; |
| return map; |
| } |
| |
| RenderLayer::FilterInfo* RenderLayer::FilterInfo::getIfExists(const RenderLayer& layer) |
| { |
| ASSERT(layer.m_hasFilterInfo == map().contains(&layer)); |
| |
| return layer.m_hasFilterInfo ? map().get(&layer) : nullptr; |
| } |
| |
| RenderLayer::FilterInfo& RenderLayer::FilterInfo::get(RenderLayer& layer) |
| { |
| ASSERT(layer.m_hasFilterInfo == map().contains(&layer)); |
| |
| auto& info = map().add(&layer, nullptr).iterator->value; |
| if (!info) { |
| info = std::make_unique<FilterInfo>(layer); |
| layer.m_hasFilterInfo = true; |
| } |
| return *info; |
| } |
| |
| void RenderLayer::FilterInfo::remove(RenderLayer& layer) |
| { |
| ASSERT(layer.m_hasFilterInfo == map().contains(&layer)); |
| if (!layer.m_hasFilterInfo) |
| return; |
| |
| map().remove(&layer); |
| layer.m_hasFilterInfo = false; |
| } |
| |
| RenderLayer::FilterInfo::FilterInfo(RenderLayer& layer) |
| : m_layer(layer) |
| { |
| } |
| |
| RenderLayer::FilterInfo::~FilterInfo() |
| { |
| removeReferenceFilterClients(); |
| } |
| |
| void RenderLayer::FilterInfo::setRenderer(RefPtr<FilterEffectRenderer>&& renderer) |
| { |
| m_renderer = renderer; |
| } |
| |
| void RenderLayer::FilterInfo::notifyFinished(CachedResource&) |
| { |
| m_layer.filterNeedsRepaint(); |
| } |
| |
| void RenderLayer::FilterInfo::updateReferenceFilterClients(const FilterOperations& operations) |
| { |
| removeReferenceFilterClients(); |
| for (auto& operation : operations.operations()) { |
| if (!is<ReferenceFilterOperation>(*operation)) |
| continue; |
| auto& referenceOperation = downcast<ReferenceFilterOperation>(*operation); |
| auto* documentReference = referenceOperation.cachedSVGDocumentReference(); |
| if (auto* cachedSVGDocument = documentReference ? documentReference->document() : nullptr) { |
| // Reference is external; wait for notifyFinished(). |
| cachedSVGDocument->addClient(*this); |
| m_externalSVGReferences.append(cachedSVGDocument); |
| } else { |
| // Reference is internal; add layer as a client so we can trigger filter repaint on SVG attribute change. |
| auto* filter = m_layer.renderer().document().getElementById(referenceOperation.fragment()); |
| if (!filter) |
| continue; |
| auto* renderer = filter->renderer(); |
| if (!is<RenderSVGResourceFilter>(renderer)) |
| continue; |
| downcast<RenderSVGResourceFilter>(*renderer).addClientRenderLayer(&m_layer); |
| m_internalSVGReferences.append(filter); |
| } |
| } |
| } |
| |
| void RenderLayer::FilterInfo::removeReferenceFilterClients() |
| { |
| for (auto& resourceHandle : m_externalSVGReferences) |
| resourceHandle->removeClient(*this); |
| m_externalSVGReferences.clear(); |
| |
| for (auto& filter : m_internalSVGReferences) { |
| if (auto* renderer = filter->renderer()) |
| downcast<RenderSVGResourceContainer>(*renderer).removeClientRenderLayer(&m_layer); |
| } |
| m_internalSVGReferences.clear(); |
| } |
| |
| } // namespace WebCore |