| /* |
| * Copyright (C) 2012 Google 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: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "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 |
| * OWNER OR CONTRIBUTORS 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 "core/dom/ContextFeatures.h" |
| |
| #include "core/dom/Document.h" |
| #include "core/page/Page.h" |
| #include "platform/RuntimeEnabledFeatures.h" |
| #include "wtf/PtrUtil.h" |
| #include "wtf/StdLibExtras.h" |
| #include <memory> |
| |
| namespace blink { |
| |
| std::unique_ptr<ContextFeaturesClient> ContextFeaturesClient::empty() |
| { |
| return wrapUnique(new ContextFeaturesClient()); |
| } |
| |
| const char* ContextFeatures::supplementName() |
| { |
| return "ContextFeatures"; |
| } |
| |
| ContextFeatures& ContextFeatures::defaultSwitch() |
| { |
| DEFINE_STATIC_LOCAL(ContextFeatures, instance, (ContextFeatures::create(ContextFeaturesClient::empty()))); |
| return instance; |
| } |
| |
| bool ContextFeatures::pagePopupEnabled(Document* document) |
| { |
| if (!document) |
| return false; |
| return document->contextFeatures().isEnabled(document, PagePopup, false); |
| } |
| |
| bool ContextFeatures::mutationEventsEnabled(Document* document) |
| { |
| DCHECK(document); |
| if (!document) |
| return true; |
| return document->contextFeatures().isEnabled(document, MutationEvents, true); |
| } |
| |
| void provideContextFeaturesTo(Page& page, std::unique_ptr<ContextFeaturesClient> client) |
| { |
| Supplement<Page>::provideTo(page, ContextFeatures::supplementName(), ContextFeatures::create(std::move(client))); |
| } |
| |
| void provideContextFeaturesToDocumentFrom(Document& document, Page& page) |
| { |
| ContextFeatures* provided = static_cast<ContextFeatures*>(Supplement<Page>::from(page, ContextFeatures::supplementName())); |
| if (!provided) |
| return; |
| document.setContextFeatures(*provided); |
| } |
| |
| } // namespace blink |