1 /* 2 * Copyright (C) 2012 Google 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Neither the name of Google Inc. nor the names of its 11 * contributors may be used to endorse or promote products derived from 12 * this software without specific prior written permission. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 15 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 16 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 17 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 18 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 19 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 20 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include "config.h" 28 #include "core/dom/ContextFeatures.h" 29 30 #include "core/dom/Document.h" 31 #include "core/page/Page.h" 32 #include "platform/RuntimeEnabledFeatures.h" 33 34 namespace WebCore { 35 36 PassOwnPtr<ContextFeaturesClient> ContextFeaturesClient::empty() 37 { 38 return adoptPtr(new ContextFeaturesClient()); 39 } 40 41 const char* ContextFeatures::supplementName() 42 { 43 return "ContextFeatures"; 44 } 45 46 ContextFeatures* ContextFeatures::defaultSwitch() 47 { 48 #if ENABLE(OILPAN) 49 DEFINE_STATIC_LOCAL(Persistent<ContextFeatures>, instance, (ContextFeatures::create(ContextFeaturesClient::empty()))); 50 #else 51 DEFINE_STATIC_REF(ContextFeatures, instance, (ContextFeatures::create(ContextFeaturesClient::empty()))); 52 #endif 53 return instance; 54 } 55 56 bool ContextFeatures::dialogElementEnabled(Document* document) 57 { 58 if (!document) 59 return RuntimeEnabledFeatures::dialogElementEnabled(); 60 return document->contextFeatures().isEnabled(document, DialogElement, RuntimeEnabledFeatures::dialogElementEnabled()); 61 } 62 63 bool ContextFeatures::pagePopupEnabled(Document* document) 64 { 65 if (!document) 66 return false; 67 return document->contextFeatures().isEnabled(document, PagePopup, false); 68 } 69 70 bool ContextFeatures::mutationEventsEnabled(Document* document) 71 { 72 ASSERT(document); 73 if (!document) 74 return true; 75 return document->contextFeatures().isEnabled(document, MutationEvents, true); 76 } 77 78 bool ContextFeatures::pushStateEnabled(Document* document) 79 { 80 return document->contextFeatures().isEnabled(document, PushState, true); 81 } 82 83 void provideContextFeaturesTo(Page& page, PassOwnPtr<ContextFeaturesClient> client) 84 { 85 ContextFeatures::SupplementType::provideTo(page, ContextFeatures::supplementName(), ContextFeatures::create(client)); 86 } 87 88 void provideContextFeaturesToDocumentFrom(Document& document, Page& page) 89 { 90 ContextFeatures* provided = static_cast<ContextFeatures*>(ContextFeatures::SupplementType::from(page, ContextFeatures::supplementName())); 91 if (!provided) 92 return; 93 document.setContextFeatures(*provided); 94 } 95 96 } 97