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11b2b24722
Expose a Document constructor instead. This also exposes that the TemplateBinding library might need more control over the registration context for custom elements. For now we make all documents share the same registration context. R=ojan@chromium.org, abarth@chromium.org Review URL: https://codereview.chromium.org/697363002
479 lines
18 KiB
C++
479 lines
18 KiB
C++
/*
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* Copyright (C) 2012 Google, Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef UseCounter_h
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#define UseCounter_h
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#include "core/CSSPropertyNames.h"
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#include "wtf/BitVector.h"
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#include "wtf/Noncopyable.h"
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#include "wtf/OwnPtr.h"
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#include "wtf/PassOwnPtr.h"
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#include "wtf/text/WTFString.h"
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namespace blink {
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class CSSStyleSheet;
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class LocalDOMWindow;
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class Document;
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class ExecutionContext;
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class StyleSheetContents;
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// UseCounter is used for counting the number of times features of
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// Blink are used on real web pages and help us know commonly
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// features are used and thus when it's safe to remove or change them.
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//
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// The Chromium Content layer controls what is done with this data.
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// For instance, in Google Chrome, these counts are submitted
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// anonymously through the Histogram recording system in Chrome
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// for users who opt-in to "Usage Statistics" submission
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// during their install of Google Chrome:
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// http://www.google.com/chrome/intl/en/privacy.html
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class UseCounter {
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WTF_MAKE_NONCOPYABLE(UseCounter);
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public:
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UseCounter();
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~UseCounter();
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enum Feature {
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// Do not change assigned numbers of existing items: add new features
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// to the end of the list.
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PageDestruction = 0,
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PrefixedIndexedDB = 3,
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WorkerStart = 4,
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SharedWorkerStart = 5,
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UnprefixedIndexedDB = 9,
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OpenWebDatabase = 10,
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UnprefixedRequestAnimationFrame = 13,
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PrefixedRequestAnimationFrame = 14,
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PrefixedTransitionEndEvent = 18,
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UnprefixedTransitionEndEvent = 19,
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PrefixedAndUnprefixedTransitionEndEvent = 20,
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AutoFocusAttribute = 21,
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DataListElement = 23,
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FormAttribute = 24,
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IncrementalAttribute = 25,
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InputTypeColor = 26,
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InputTypeDate = 27,
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InputTypeDateTimeFallback = 29,
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InputTypeDateTimeLocal = 30,
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InputTypeEmail = 31,
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InputTypeMonth = 32,
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InputTypeNumber = 33,
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InputTypeRange = 34,
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InputTypeSearch = 35,
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InputTypeTel = 36,
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InputTypeTime = 37,
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InputTypeURL = 38,
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InputTypeWeek = 39,
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InputTypeWeekFallback = 40,
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ListAttribute = 41,
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MaxAttribute = 42,
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MinAttribute = 43,
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PatternAttribute = 44,
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PlaceholderAttribute = 45,
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PrefixedDirectoryAttribute = 47,
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RequiredAttribute = 49,
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ResultsAttribute = 50,
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StepAttribute = 51,
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PageVisits = 52,
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PrefixedStorageInfo = 57,
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XFrameOptions = 58,
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XFrameOptionsSameOrigin = 59,
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XFrameOptionsSameOriginWithBadAncestorChain = 60,
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DeprecatedFlexboxWebContent = 61,
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DeprecatedFlexboxChrome = 62,
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DeprecatedFlexboxChromeExtension = 63,
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UnprefixedPerformanceTimeline = 65,
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UnprefixedUserTiming = 67,
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WindowEvent = 69,
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PrefixedMediaAddKey = 71,
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PrefixedMediaGenerateKeyRequest = 72,
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SVGFontElement = 76,
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XMLDocument = 77,
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SVGSwitchElement = 80,
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DocumentAll = 83,
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FormElement = 84,
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DemotedFormElement = 85,
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SVGAnimationElement = 90,
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KeyboardEventKeyLocation = 91,
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LineClamp = 96,
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TextReplaceWholeText = 100,
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ConsoleMarkTimeline = 102,
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CSSPseudoElementUserAgentCustomPseudo = 103,
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ElementGetAttributeNode = 107, // Removed from DOM4.
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ElementSetAttributeNode = 108, // Removed from DOM4.
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ElementRemoveAttributeNode = 109, // Removed from DOM4.
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DocumentCreateAttribute = 111, // Removed from DOM4.
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DocumentCreateAttributeNS = 112, // Removed from DOM4.
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DocumentInputEncoding = 114, // Removed from DOM4.
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DocumentXMLEncoding = 115, // Removed from DOM4.
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DocumentXMLStandalone = 116, // Removed from DOM4.
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NodeIsSameNode = 118, // Removed from DOM4.
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NodeNamespaceURI = 120, // Removed from DOM4.
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NodeLocalName = 122, // Removed from DOM4.
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NavigatorProductSub = 123,
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NavigatorVendor = 124,
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NavigatorVendorSub = 125,
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FileError = 126,
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DocumentCharset = 127, // Documented as IE extensions = 0, from KHTML days.
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PrefixedAnimationEndEvent = 128,
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UnprefixedAnimationEndEvent = 129,
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PrefixedAndUnprefixedAnimationEndEvent = 130,
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PrefixedAnimationStartEvent = 131,
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UnprefixedAnimationStartEvent = 132,
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PrefixedAndUnprefixedAnimationStartEvent = 133,
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PrefixedAnimationIterationEvent = 134,
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UnprefixedAnimationIterationEvent = 135,
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PrefixedAndUnprefixedAnimationIterationEvent = 136,
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EventReturnValue = 137, // Legacy IE extension.
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HasAttributes = 142, // Removed from DOM4.
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DOMSubtreeModifiedEvent = 143,
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DOMNodeInsertedEvent = 144,
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DOMNodeRemovedEvent = 145,
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DOMNodeRemovedFromDocumentEvent = 146,
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DOMNodeInsertedIntoDocumentEvent = 147,
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DOMCharacterDataModifiedEvent = 148,
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DocumentAllLegacyCall = 150,
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GetMatchedCSSRules = 155,
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SVGFontInCSS = 156,
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AttributeOwnerElement = 160, // Removed in DOM4.
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AttributeSpecified = 162, // Removed in DOM4.
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PrefixedAudioDecodedByteCount = 164,
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PrefixedElementRequestFullscreen = 176,
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PrefixedElementRequestFullScreen = 177,
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InputTypeEmailMultiple = 184,
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InputTypeEmailMaxLength = 185,
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InputTypeEmailMultipleMaxLength = 186,
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InputTypeText = 190,
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InputTypeTextMaxLength = 191,
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InputTypePassword = 192,
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InputTypePasswordMaxLength = 193,
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PrefixedPageVisibility = 196,
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CSSStyleSheetInsertRuleOptionalArg = 198, // Inconsistent with the specification and other browsers.
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DocumentUnloadRegistered = 202,
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DocumentUnloadFired = 203,
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SVGLocatableNearestViewportElement = 204,
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SVGLocatableFarthestViewportElement = 205,
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HTMLHeadElementProfile = 207,
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SVGPointMatrixTransform = 209,
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DOMFocusInOutEvent = 211,
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FileGetLastModifiedDate = 212,
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ElementPrefixedMatchesSelector = 217,
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CSSStyleSheetRules = 219,
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CSSStyleSheetAddRule = 220,
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CSSStyleSheetRemoveRule = 221,
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// The above items are available in M33 branch.
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InitMessageEvent = 222,
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ElementSetPrefix = 224, // Element.prefix is readonly in DOM4.
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CSSStyleDeclarationGetPropertyCSSValue = 225,
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PrefixedMediaCancelKeyRequest = 229,
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CanPlayTypeKeySystem = 232,
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PrefixedDevicePixelRatioMediaFeature = 233,
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PrefixedMaxDevicePixelRatioMediaFeature = 234,
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PrefixedMinDevicePixelRatioMediaFeature = 235,
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PrefixedTransform3dMediaFeature = 237,
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PrefixedStorageQuota = 240,
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ResetReferrerPolicy = 243,
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CaseInsensitiveAttrSelectorMatch = 244, // Case-insensitivity dropped from specification.
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FormNameAccessForImageElement = 246,
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FormNameAccessForPastNamesMap = 247,
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FormAssociationByParser = 248,
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WebSocketURL = 255,
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WorkerAllowedByChildBlockedByScript = 258,
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DeprecatedWebKitGradient = 260,
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DeprecatedWebKitLinearGradient = 261,
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DeprecatedWebKitRepeatingLinearGradient = 262,
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DeprecatedWebKitRadialGradient = 263,
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DeprecatedWebKitRepeatingRadialGradient = 264,
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PrefixedImageSmoothingEnabled = 267,
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UnprefixedImageSmoothingEnabled = 268,
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// The above items are available in M34 branch.
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TextAutosizing = 274,
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HTMLAnchorElementPingAttribute = 276,
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SVGClassName = 279,
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PrefixedWindowURL = 283,
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PrefixedWorkerURL = 284, // This didn't work because of crbug.com/376039. Available since M37.
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WindowOrientation = 285,
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DOMStringListContains = 286,
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DocumentCaptureEvents = 287,
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DocumentReleaseEvents = 288,
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WindowCaptureEvents = 289,
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WindowReleaseEvents = 290,
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PrefixedGamepad = 291,
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ElementAnimateKeyframeListEffectObjectTiming = 292,
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ElementAnimateKeyframeListEffectDoubleTiming = 293,
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ElementAnimateKeyframeListEffectNoTiming = 294,
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AttrGetValue = 298,
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AttrSetValue = 299,
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AnimationConstructorKeyframeListEffectObjectTiming = 300,
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AnimationConstructorKeyframeListEffectDoubleTiming = 301,
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AnimationConstructorKeyframeListEffectNoTiming = 302,
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AttrSetValueWithElement = 303,
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PrefixedCancelAnimationFrame = 304,
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PrefixedCancelRequestAnimationFrame = 305,
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OpenWebDatabaseInWorker = 313, // This didn't work because of crbug.com/376039. Available since M37.
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OpenWebDatabaseSyncInWorker = 314, // This didn't work because of crbug.com/376039. Available since M37.
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XHRProgressEventPosition = 316,
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XHRProgressEventTotalSize = 317,
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PrefixedDocumentIsFullscreen = 318,
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PrefixedDocumentFullScreenKeyboardInputAllowed = 319,
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PrefixedDocumentCurrentFullScreenElement = 320,
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PrefixedDocumentCancelFullScreen = 321,
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PrefixedDocumentFullscreenEnabled = 322,
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PrefixedDocumentFullscreenElement = 323,
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PrefixedDocumentExitFullscreen = 324,
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// The above items are available in M35 branch.
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SVGForeignObjectElement = 325,
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SelectionSetPosition = 327,
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AnimationPlayerFinishEvent = 328,
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CanvasRenderingContext2DSetAlpha = 330,
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CanvasRenderingContext2DSetCompositeOperation = 331,
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CanvasRenderingContext2DSetLineWidth = 332,
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CanvasRenderingContext2DSetLineCap = 333,
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CanvasRenderingContext2DSetLineJoin = 334,
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CanvasRenderingContext2DSetMiterLimit = 335,
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CanvasRenderingContext2DClearShadow = 336,
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CanvasRenderingContext2DSetStrokeColor = 337,
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CanvasRenderingContext2DSetFillColor = 338,
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CanvasRenderingContext2DDrawImageFromRect = 339,
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CanvasRenderingContext2DSetShadow = 340,
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PrefixedPerformanceClearResourceTimings = 341,
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PrefixedPerformanceSetResourceTimingBufferSize = 342,
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EventSrcElement = 343,
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EventCancelBubble = 344,
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EventPath = 345,
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EventClipboardData = 346,
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AttrTextContent = 349,
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EventGetReturnValueTrue = 350,
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EventGetReturnValueFalse = 351,
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EventSetReturnValueTrue = 352,
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EventSetReturnValueFalse = 353,
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WindowOffscreenBuffering = 356,
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WindowDefaultStatus = 357,
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WindowDefaultstatus = 358,
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PrefixedTransitionEventConstructor = 361,
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PrefixedMutationObserverConstructor = 362,
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PrefixedIDBCursorConstructor = 363,
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PrefixedIDBDatabaseConstructor = 364,
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PrefixedIDBFactoryConstructor = 365,
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PrefixedIDBIndexConstructor = 366,
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PrefixedIDBKeyRangeConstructor = 367,
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PrefixedIDBObjectStoreConstructor = 368,
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PrefixedIDBRequestConstructor = 369,
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PrefixedIDBTransactionConstructor = 370,
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NotificationPermission = 371,
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RangeDetach = 372,
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PrefixedTouchRadiusX = 378,
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PrefixedTouchRadiusY = 379,
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PrefixedTouchRotationAngle = 380,
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PrefixedTouchForce = 381,
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PrefixedMouseEventMovementX = 382,
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PrefixedMouseEventMovementY = 383,
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PrefixedFileRelativePath = 386,
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DocumentCaretRangeFromPoint = 387,
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DocumentGetCSSCanvasContext = 388,
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ElementScrollIntoViewIfNeeded = 389,
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RangeCompareNode = 392,
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RangeExpand = 393,
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HTMLImageElementX = 396,
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HTMLImageElementY = 397,
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SelectionBaseNode = 400,
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SelectionBaseOffset = 401,
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SelectionExtentNode = 402,
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SelectionExtentOffset = 403,
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SelectionType = 404,
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SelectionModify = 405,
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SelectionSetBaseAndExtent = 406,
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SelectionEmpty = 407,
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// The above items are available in M36 branch.
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PostMessageFromSecureToInsecure = 419,
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PostMessageFromInsecureToSecure = 420,
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PrefixedCursorZoomIn = 424,
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PrefixedCursorZoomOut = 425,
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CSSCharsetRuleEncoding = 426,
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DocumentSetCharset = 427,
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DocumentDefaultCharset = 428,
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TextEncoderConstructor = 429,
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TextEncoderEncode = 430,
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TextDecoderConstructor = 431,
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TextDecoderDecode = 432,
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FocusInOutEvent = 433,
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MouseEventMovementX = 434,
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MouseEventMovementY = 435,
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MixedContentRaw = 437,
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MixedContentImage = 438,
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MixedContentMedia = 439,
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DocumentFonts = 440,
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MixedContentFormsSubmitted = 441,
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FormsSubmitted = 442,
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TextInputEventOnInput = 443,
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TextInputEventOnTextArea = 444,
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TextInputEventOnContentEditable = 445,
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TextInputEventOnNotNode = 446,
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WebkitBeforeTextInsertedOnInput = 447,
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WebkitBeforeTextInsertedOnTextArea = 448,
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WebkitBeforeTextInsertedOnContentEditable = 449,
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WebkitBeforeTextInsertedOnNotNode = 450,
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WebkitEditableContentChangedOnInput = 451,
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WebkitEditableContentChangedOnTextArea = 452,
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WebkitEditableContentChangedOnContentEditable = 453,
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WebkitEditableContentChangedOnNotNode = 454,
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HTMLImports = 455,
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ElementCreateShadowRoot = 456,
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DocumentRegisterElement = 457,
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EditingAppleInterchangeNewline = 458,
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EditingAppleConvertedSpace = 459,
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EditingApplePasteAsQuotation = 460,
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EditingAppleStyleSpanClass = 461,
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EditingAppleTabSpanClass = 462,
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HTMLImportsAsyncAttribute = 463,
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FontFaceSetReady = 464,
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CSSSelectorPseudoUnresolved = 466,
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CSSSelectorPseudoHost = 469,
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CSSDeepCombinator = 471,
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SyncXHRWithCredentials = 472,
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// The above items are available in M37 branch.
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UseAsm = 473,
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KeyEventNotAllowedInFullScreen = 474,
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DOMWindowOpen = 475,
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DOMWindowOpenFeatures = 476,
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AspectRatioFlexItem = 479,
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DetailsElement = 480,
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DialogElement = 481,
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MapElement = 482,
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MeterElement = 483,
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ProgressElement = 484,
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PrefixedHTMLElementDropzone = 490,
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WheelEventWheelDeltaX = 491,
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WheelEventWheelDeltaY = 492,
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WheelEventWheelDelta = 493,
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SendBeacon = 494,
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SendBeaconQuotaExceeded = 495,
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SVGSMILElementInDocument = 501,
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MouseEventOffsetX = 502,
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MouseEventOffsetY = 503,
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MouseEventX = 504,
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MouseEventY = 505,
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MouseEventFromElement = 506,
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MouseEventToElement = 507,
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RequestFileSystem = 508,
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RequestFileSystemWorker = 509,
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RequestFileSystemSyncWorker = 510,
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UIEventLayerX = 511,
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UIEventLayerY = 512,
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UIEventPageX = 513,
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UIEventPageY = 514,
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BgPropertiesFixed = 515,
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HTMLImageElementComposite = 516,
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DevToolsConsoleTimeline = 517,
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DevToolsConsoleProfile = 518,
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PictureSourceSrc = 520,
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// The above items are available in M38 branch.
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Picture = 521,
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Sizes = 522,
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SrcsetXDescriptor = 523,
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SrcsetWDescriptor = 524,
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SelectionContainsNode = 525,
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// Add new features immediately above this line. Don't change assigned
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// numbers of any item, and don't reuse removed slots.
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// Also, run update_use_counter_feature_enum.py in chromium/src/tools/metrics/histograms/
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// to update the UMA mapping.
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NumberOfFeatures, // This enum value must be last.
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};
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// "count" sets the bit for this feature to 1. Repeated calls are ignored.
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static void count(const Document&, Feature);
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// This doesn't count for ExecutionContexts for shared workers and service
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// workers.
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static void count(const ExecutionContext*, Feature);
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void count(CSSParserContext, CSSPropertyID);
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void count(Feature);
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// "countDeprecation" sets the bit for this feature to 1, and sends a deprecation
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// warning to the console. Repeated calls are ignored.
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//
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// Be considerate to developers' consoles: features should only send
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// deprecation warnings when we're actively interested in removing them from
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// the platform.
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//
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// The ExecutionContext* overload doesn't work for shared workers and
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// service workers.
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static void countDeprecation(const LocalDOMWindow*, Feature);
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static void countDeprecation(ExecutionContext*, Feature);
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static void countDeprecation(const Document&, Feature);
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String deprecationMessage(Feature);
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void didCommitLoad();
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static UseCounter* getFrom(const Document*);
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static UseCounter* getFrom(const CSSStyleSheet*);
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static UseCounter* getFrom(const StyleSheetContents*);
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static void muteForInspector();
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static void unmuteForInspector();
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private:
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static int m_muteCount;
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bool recordMeasurement(Feature feature)
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{
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if (UseCounter::m_muteCount)
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return false;
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ASSERT(feature != PageDestruction); // PageDestruction is reserved as a scaling factor.
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ASSERT(feature < NumberOfFeatures);
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if (!m_countBits) {
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m_countBits = adoptPtr(new BitVector(NumberOfFeatures));
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m_countBits->clearAll();
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}
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if (m_countBits->quickGet(feature))
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return false;
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m_countBits->quickSet(feature);
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return true;
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}
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void updateMeasurements();
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OwnPtr<BitVector> m_countBits;
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BitVector m_CSSFeatureBits;
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};
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} // namespace blink
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#endif // UseCounter_h
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