Chrome 63 Dart Web Libraries

The Dart Web Libraries have not been updated since Chrome 50. With this release these libraries have been rev’d to the Chrome 63 APIs (WebIDLs). Below are the known differences between the Chrome 50 and Chrome 63 Dart Web libraries. These are the changes that have affected Dart user’s code:

Touch and TouchEvent change
- _initTouchEvent removed see Chrome Change
- Example of Migrating initTouchEvent to Map
TouchEvent constructor takes a map argument, strong mode catches these failures in our tests.
Web_audio
- AudioScheduledSourceNode.start (inherits in OscillatorNode too) e.g., operation void start([num when]);
- AudioBufferSourceNode.start([num when, num grainOffset, num grainDuration]) can't be overloaded void start2([num when, num grainOffset, num grainDuration])
Attributes of type double changed num see section "Attributes Type Change double to num" at the end of this document.
onWheel event exposed
Created for union of two kinds of canvas HTMLCanvasElement and OffscreenCanvas interface WebGLCanvas
all other RenderingContext
- readonly attribute WebGLCanvas canvas;
interface WebGLRenderingContext
- readonly attribute HTMLCanvasElement canvas;
KeygenElement was removed in Chrome 57
IDBFactory.webkitGetDatabaseNames() constructor removed in Chrome
Depreciated FileError and DomError have been removed use DomException
- error.code replaced with error.name (e.g., see fileapi_directory_test.dart)
- Additional because FileError is gone there is no easy way to determine which errors are File only errors. However, these are:
- NOT_FOUND_ERR
- SECURITY_ERR
- ABORT_ERR
- NO_MODIFICATION_ALLOWED_ERR
- INVALID_STATE_ERR
- SYNTAX_ERR
- INVALID_MODIFICATION_ERR
- QUOTA_EXCEEDED_ERR
- TYPE_MISMATCH_ERR
registerElement and register maps to old style (Chrome 50)
registerElement2 2nd parameter is a map {'prototype': xxx, 'extends': xxxx} not 2 separate arguments.
List getClientRects() is now DomRectList getClientRects()
Rectangle getBoundingClientRect() is now DomRect getBoundingClientRect()
postMessage(/any/ message, String targetOrigin, [List transfer]) changed to void postMessage(/any/ message, String targetOrigin, [List transfer]) transfer can now be ArrayBuffer, MessagePort and ImageBitmap
RTCPeerConnection.setLocalDescription and setRemoteDescription
- takes a Map setLocalDescription(Map description) description is a map e.g., {'type': localSessionDescription, 'sdp': fakeLensSdp}
nounce removed from HtmlScriptElement added to HtmlElement
- https://codereview.chromium.org/2801243002
- https://github.com/whatwg/html/issues/2369
Event.deepPath() was removed Chrome 54
- https://developer.mozilla.org/en-US/docs/Web/API/Event/deepPath
Event.scoped replaced by Event.composed
- https://developer.mozilla.org/en-US/docs/Web/API/Event/composed

Attributes Type Change double to num

Accelerometer
- x, y, z
AmbientLightSensor
- illuminance
AnimationEffectTimingReadOnly
- delay, endDelay, iterationStart, iterations
AnimationEvent
- elapsedTime
AnimationPlaybackEvent
- currentTime, timelineTime
AnimationTimeline
- currentTime
BatteryManager
- chargingTime, dischargingTime, level
BlobEvent
- timecode
BudgetState
- budgetAt
Coordinates
- accuracy, altitude, altitudeAccuracy, heading, latitude, longitude, speed
CSSImageValue
- intrinsicHeight,intrinsicRatio, intrinsicWidth
DeviceAcceleration
- x, y, z
DeviceOrientationEvent
- alpha, beta, gamma
DeviceRotationRate
- alpha, beta, gamma
Event
- timeStamp
GamepadButton
- value
Gyroscope
- x, y, z
IntersectionObserverEntry
- intersectionRatio, time
Magnetometer
- x, y, z
HTMLMediaElement
- duration
MediaKeySession
- expiration
MediaSettingsRange
- max. min, step
MouseEvent
- clientX, clientY, pageX, pageY, screenX, screenY
Navigator
- deviceMemory
NetworkInformation
- downlink, downlinkMax
PaintSize
- height, width
PaintWorkletGlobalScope
- devicePixelRatio
Performance
- timeOrigin
PerformanceEntry
- duration, startTime
PerformanceNavigationTiming
- domComplete, domContentLoadedEventEnd, domContentLoadedEventStart, domInteractive, loadEventEnd, loadEventStart, redirectCount, unloadEventEnd, unloadEventStart
PerformanceResourceTiming
- connectEnd, connectStart, domainLookupEnd, domainLookupStart, encodedBodySize, fetchStart, redirectStart, requestStart, responseEnd, responseStart, secureConnectionStart, workerStart
PointerEvent
- height, pressure, tangentialPressure, width
HTMLProgressElement
- position
RTCRtpContributingSource
- timestamp
ScrollState
- deltaGranularity, deltaX, deltaY, velocityX, velocityY
Sensor
- timestamp
SpeechRecognitionAlternative
- confidence
SpeechSynthesisEvent
- elapsedTime
TextMetrics
- actualBoundingBoxAscent, actualBoundingBoxDescent, actualBoundingBoxLeft, actualBoundingBoxRight, alphabeticBaseline, emHeightAscent, emHeightDescent, fontBoundingBoxAscent, fontBoundingBoxDescent, hangingBaseline, ideographicBaseline, width
Touch
- clientX, clientY, force, pageX, pageY, radiusX, radiusY, rotationAngle, screenX, screenY
TransitionEvent
- elapsedTime
VRFrameOfReference
- emulatedHeight
VRStageBoundsPoint
- x, z
VRStageParameters
- sizeX, sizeZ
VideoPlaybackQuality
- creationTime
VisualViewport
- height, offsetLeft, offsetTop, pageLeft, pageTop, sca, width
WheelEvent
- deltaX, deltaY, deltaZ
Window
- devicePixelRatio, pageXOffset, pageYOffset
WorkerPerformance
- timeOrigin
XPathResult
- numberValue

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Chrome 63 Dart Web Libraries

Attributes Type Change double to num

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