| /* |
| * 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: |
| * 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 GOOGLE INC. ``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 APPLE COMPUTER, INC. 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 "config.h" |
| #include "core/page/UseCounter.h" |
| |
| #include "core/dom/Document.h" |
| #include "core/dom/ScriptExecutionContext.h" |
| #include "core/page/DOMWindow.h" |
| #include "core/page/Page.h" |
| #include "core/page/PageConsole.h" |
| #include "core/platform/HistogramSupport.h" |
| #include "wtf/text/WTFString.h" |
| |
| namespace WebCore { |
| |
| UseCounter::UseCounter() |
| { |
| } |
| |
| UseCounter::~UseCounter() |
| { |
| // We always log PageDestruction so that we have a scale for the rest of the features. |
| HistogramSupport::histogramEnumeration("WebCore.FeatureObserver", PageDestruction, NumberOfFeatures); |
| |
| updateMeasurements(); |
| } |
| |
| void UseCounter::updateMeasurements() |
| { |
| HistogramSupport::histogramEnumeration("WebCore.FeatureObserver", PageVisits, NumberOfFeatures); |
| |
| if (!m_countBits) |
| return; |
| |
| for (unsigned i = 0; i < NumberOfFeatures; ++i) { |
| if (m_countBits->quickGet(i)) |
| HistogramSupport::histogramEnumeration("WebCore.FeatureObserver", i, NumberOfFeatures); |
| } |
| |
| // Clearing count bits is timing sensitive. |
| m_countBits->clearAll(); |
| } |
| |
| void UseCounter::didCommitLoad() |
| { |
| updateMeasurements(); |
| } |
| |
| void UseCounter::count(Document* document, Feature feature) |
| { |
| if (!document) |
| return; |
| |
| Page* page = document->page(); |
| if (!page) |
| return; |
| |
| ASSERT(page->useCounter()->deprecationMessage(feature).isEmpty()); |
| page->useCounter()->recordMeasurement(feature); |
| } |
| |
| void UseCounter::count(DOMWindow* domWindow, Feature feature) |
| { |
| ASSERT(domWindow); |
| count(domWindow->document(), feature); |
| } |
| |
| void UseCounter::countDeprecation(ScriptExecutionContext* context, Feature feature) |
| { |
| if (!context || !context->isDocument()) |
| return; |
| UseCounter::countDeprecation(toDocument(context), feature); |
| } |
| |
| void UseCounter::countDeprecation(DOMWindow* window, Feature feature) |
| { |
| if (!window) |
| return; |
| UseCounter::countDeprecation(window->document(), feature); |
| } |
| |
| void UseCounter::countDeprecation(Document* document, Feature feature) |
| { |
| if (!document) |
| return; |
| |
| Page* page = document->page(); |
| if (!page) |
| return; |
| |
| if (page->useCounter()->recordMeasurement(feature)) { |
| ASSERT(!page->useCounter()->deprecationMessage(feature).isEmpty()); |
| page->console()->addMessage(DeprecationMessageSource, WarningMessageLevel, page->useCounter()->deprecationMessage(feature)); |
| } |
| } |
| |
| String UseCounter::deprecationMessage(Feature feature) |
| { |
| switch (feature) { |
| // Content Security Policy |
| case PrefixedContentSecurityPolicy: |
| case PrefixedContentSecurityPolicyReportOnly: |
| return "The 'X-WebKit-CSP' headers are deprecated; please consider using the canonical 'Content-Security-Policy' header instead."; |
| |
| // HTMLMediaElement |
| case PrefixedMediaAddKey: |
| return "'HTMLMediaElement.webkitAddKey()' is deprecated. Please use 'MediaKeySession.update()' instead."; |
| case PrefixedMediaGenerateKeyRequest: |
| return "'HTMLMediaElement.webkitGenerateKeyRequest()' is deprecated. Please use 'MediaKeys.createSession()' instead."; |
| |
| // Quota |
| case StorageInfo: |
| return "'window.webkitStorageInfo' is deprecated. Please use 'navigator.webkitTemporaryStorage' or 'navigator.webkitPersistentStorage' instead."; |
| |
| // Performance |
| case PrefixedPerformanceTimeline: |
| return "'window.performance.webkitGet*' methods have been deprecated. Please use the unprefixed 'performance.get*' methods instead."; |
| case PrefixedUserTiming: |
| return "'window.performance.webkit*' methods have been deprecated. Please use the unprefixed 'window.performance.*' methods instead."; |
| |
| // Web Audio |
| case WebAudioLooping: |
| return "AudioBufferSourceNode 'looping' attribute is deprecated. Use 'loop' instead."; |
| |
| case DocumentClear: |
| return "document.clear() is deprecated. This method doesn't do anything."; |
| |
| // Features that aren't deprecated don't have a deprecation message. |
| default: |
| return String(); |
| } |
| } |
| |
| } // namespace WebCore |