1/* 2 * Copyright (C) 2012 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of Apple Inc. ("Apple") nor the names of 14 * its contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#ifndef InspectorLayerTreeAgent_h 30#define InspectorLayerTreeAgent_h 31 32#if ENABLE(INSPECTOR) 33 34#include "InspectorWebAgentBase.h" 35#include "InspectorWebBackendDispatchers.h" 36#include "InspectorWebFrontendDispatchers.h" 37#include "InspectorWebTypeBuilders.h" 38#include "RenderLayer.h" 39#include <wtf/PassRefPtr.h> 40#include <wtf/Vector.h> 41#include <wtf/text/WTFString.h> 42 43namespace WebCore { 44 45class InstrumentingAgents; 46 47typedef String ErrorString; 48 49class InspectorLayerTreeAgent : public InspectorAgentBase, public Inspector::InspectorLayerTreeBackendDispatcherHandler { 50 WTF_MAKE_FAST_ALLOCATED; 51public: 52 explicit InspectorLayerTreeAgent(InstrumentingAgents*); 53 ~InspectorLayerTreeAgent(); 54 55 virtual void didCreateFrontendAndBackend(Inspector::InspectorFrontendChannel*, Inspector::InspectorBackendDispatcher*) override; 56 virtual void willDestroyFrontendAndBackend(Inspector::InspectorDisconnectReason) override; 57 void reset(); 58 59 void layerTreeDidChange(); 60 void renderLayerDestroyed(const RenderLayer*); 61 void pseudoElementDestroyed(PseudoElement*); 62 63 // Called from the front-end. 64 virtual void enable(ErrorString*) override; 65 virtual void disable(ErrorString*) override; 66 virtual void layersForNode(ErrorString*, int nodeId, RefPtr<Inspector::TypeBuilder::Array<Inspector::TypeBuilder::LayerTree::Layer>>&) override; 67 virtual void reasonsForCompositingLayer(ErrorString*, const String& layerId, RefPtr<Inspector::TypeBuilder::LayerTree::CompositingReasons>&) override; 68 69private: 70 // RenderLayer-related methods. 71 String bind(const RenderLayer*); 72 void unbind(const RenderLayer*); 73 74 void gatherLayersUsingRenderObjectHierarchy(ErrorString*, RenderObject*, RefPtr<Inspector::TypeBuilder::Array<Inspector::TypeBuilder::LayerTree::Layer>>&); 75 void gatherLayersUsingRenderLayerHierarchy(ErrorString*, RenderLayer*, RefPtr<Inspector::TypeBuilder::Array<Inspector::TypeBuilder::LayerTree::Layer>>&); 76 77 PassRefPtr<Inspector::TypeBuilder::LayerTree::Layer> buildObjectForLayer(ErrorString*, RenderLayer*); 78 PassRefPtr<Inspector::TypeBuilder::LayerTree::IntRect> buildObjectForIntRect(const IntRect&); 79 80 int idForNode(ErrorString*, Node*); 81 82 String bindPseudoElement(PseudoElement*); 83 void unbindPseudoElement(PseudoElement*); 84 85 std::unique_ptr<Inspector::InspectorLayerTreeFrontendDispatcher> m_frontendDispatcher; 86 RefPtr<Inspector::InspectorLayerTreeBackendDispatcher> m_backendDispatcher; 87 88 HashMap<const RenderLayer*, String> m_documentLayerToIdMap; 89 HashMap<String, const RenderLayer*> m_idToLayer; 90 91 HashMap<PseudoElement*, String> m_pseudoElementToIdMap; 92 HashMap<String, PseudoElement*> m_idToPseudoElement; 93}; 94 95} // namespace WebCore 96 97#endif // ENABLE(INSPECTOR) 98 99#endif // !defined(InspectorLayerTreeAgent_h) 100