| /* |
| * Copyright (C) 2012 Adobe Systems Incorporated. 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 "core/rendering/RenderLayerFilterInfo.h" |
| |
| #include "core/fetch/DocumentResourceReference.h" |
| #include "core/rendering/FilterEffectRenderer.h" |
| #include "core/rendering/RenderLayer.h" |
| #include "core/rendering/svg/ReferenceFilterBuilder.h" |
| #include "core/rendering/svg/RenderSVGResourceContainer.h" |
| #include "core/svg/SVGFilterElement.h" |
| #include "core/svg/SVGFilterPrimitiveStandardAttributes.h" |
| #include "core/svg/graphics/filters/SVGFilter.h" |
| |
| namespace blink { |
| |
| RenderLayerFilterInfoMap* RenderLayerFilterInfo::s_filterMap = 0; |
| |
| RenderLayerFilterInfo* RenderLayerFilterInfo::filterInfoForRenderLayer(const RenderLayer* layer) |
| { |
| if (!s_filterMap) |
| return 0; |
| RenderLayerFilterInfoMap::iterator iter = s_filterMap->find(layer); |
| return (iter != s_filterMap->end()) ? iter->value : 0; |
| } |
| |
| RenderLayerFilterInfo* RenderLayerFilterInfo::createFilterInfoForRenderLayerIfNeeded(RenderLayer* layer) |
| { |
| if (!s_filterMap) |
| s_filterMap = new RenderLayerFilterInfoMap(); |
| |
| RenderLayerFilterInfoMap::iterator iter = s_filterMap->find(layer); |
| if (iter != s_filterMap->end()) { |
| ASSERT(layer->hasFilterInfo()); |
| return iter->value; |
| } |
| |
| RenderLayerFilterInfo* filter = new RenderLayerFilterInfo(layer); |
| s_filterMap->set(layer, filter); |
| layer->setHasFilterInfo(true); |
| return filter; |
| } |
| |
| void RenderLayerFilterInfo::removeFilterInfoForRenderLayer(RenderLayer* layer) |
| { |
| if (!s_filterMap) |
| return; |
| RenderLayerFilterInfo* filter = s_filterMap->take(layer); |
| if (s_filterMap->isEmpty()) { |
| delete s_filterMap; |
| s_filterMap = 0; |
| } |
| if (!filter) { |
| ASSERT(!layer->hasFilterInfo()); |
| return; |
| } |
| layer->setHasFilterInfo(false); |
| delete filter; |
| } |
| |
| RenderLayerFilterInfo::RenderLayerFilterInfo(RenderLayer* layer) |
| : m_layer(layer) |
| { |
| } |
| |
| RenderLayerFilterInfo::~RenderLayerFilterInfo() |
| { |
| removeReferenceFilterClients(); |
| } |
| |
| void RenderLayerFilterInfo::setRenderer(PassRefPtr<FilterEffectRenderer> renderer) |
| { |
| m_renderer = renderer; |
| } |
| |
| void RenderLayerFilterInfo::notifyFinished(Resource*) |
| { |
| RenderObject* renderer = m_layer->renderer(); |
| // FIXME: This caller of scheduleSVGFilterLayerUpdateHack() is not correct. It's using the layer update |
| // system to trigger a RenderLayer to go through the filter updating logic, but that might not |
| // even happen if this element is style sharing and RenderObject::setStyle() returns early. |
| // Filters need to find a better way to hook into the system. |
| toElement(renderer->node())->scheduleSVGFilterLayerUpdateHack(); |
| renderer->paintInvalidationForWholeRenderer(); |
| } |
| |
| void RenderLayerFilterInfo::updateReferenceFilterClients(const FilterOperations& operations) |
| { |
| removeReferenceFilterClients(); |
| for (size_t i = 0; i < operations.size(); ++i) { |
| RefPtr<FilterOperation> filterOperation = operations.operations().at(i); |
| if (filterOperation->type() != FilterOperation::REFERENCE) |
| continue; |
| ReferenceFilterOperation* referenceFilterOperation = toReferenceFilterOperation(filterOperation.get()); |
| DocumentResourceReference* documentReference = ReferenceFilterBuilder::documentResourceReference(referenceFilterOperation); |
| DocumentResource* cachedSVGDocument = documentReference ? documentReference->document() : 0; |
| |
| if (cachedSVGDocument) { |
| // 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. |
| Element* filter = m_layer->renderer()->node()->document().getElementById(referenceFilterOperation->fragment()); |
| if (!isSVGFilterElement(filter)) |
| continue; |
| if (filter->renderer()) |
| toRenderSVGResourceContainer(filter->renderer())->addClientRenderLayer(m_layer); |
| else |
| toSVGFilterElement(filter)->addClient(m_layer->renderer()->node()); |
| m_internalSVGReferences.append(filter); |
| } |
| } |
| } |
| |
| void RenderLayerFilterInfo::removeReferenceFilterClients() |
| { |
| for (size_t i = 0; i < m_externalSVGReferences.size(); ++i) |
| m_externalSVGReferences.at(i)->removeClient(this); |
| m_externalSVGReferences.clear(); |
| for (size_t i = 0; i < m_internalSVGReferences.size(); ++i) { |
| Element* filter = m_internalSVGReferences.at(i).get(); |
| if (filter->renderer()) |
| toRenderSVGResourceContainer(filter->renderer())->removeClientRenderLayer(m_layer); |
| else |
| toSVGFilterElement(filter)->removeClient(m_layer->renderer()->node()); |
| } |
| m_internalSVGReferences.clear(); |
| } |
| |
| } // namespace blink |
| |