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Change Log

[Unreleased]

  • Add @ExportDecoratedItems annotation to @query and @queryAll (used by tsickle).
  • The @listen decorator allows event handler functions that accept any subtype of Event. So you can write an event listener that accepts e.g. KeyboardEvent. Note that the relationship between the event name and the event subtype is not checked.

[3.0.0] - 2018-08-10

  • Updated for Polymer 3.0.
  • Now distributed on NPM as @polymer/decorators. Bower is no longer supported.
  • [BREAKING] Dropped support for Polymer 2.0. See the 2.x branch for the previous version, which can still be installed from Bower.
  • [BREAKING] Now distributed as ES modules, like Polymer itself. HTML imports and the Polymer.decorators global are no longer available.
  • [BREAKING] Dropped support for the Metadata Reflection API. All properties must now explicitly set a type.

[2.1.1] - 2020-01-09

  • Fix incorrectly formatted Polymer dependency that caused ENOTFOUND errors (#85).

[2.1.0] - 2018-06-21

  • Add @ExportDecoratedItems annotations to decorators, for use by tsickle.

[2.0.1] - 2018-05-16

  • A warning is no longer emitted when a computed property does not have a property type set.
  • The missing type warning is now a console.warn instead of a console.error.

[2.0.0] - 2018-02-28

  • [BREAKING] It is now always a compilation error to pass an argument to the @computed decorator factory that is not a property of the element class. Previously this check only applied when the class was explicitly passed as a generic parameter. Users must no longer pass the class as a generic parameter.
  • [BREAKING] It is now a compilation to apply the @customElement decorator to a class which does not extend Polymer.Element. Polymer >= 2.4 (which provides this type) is now a Bower dependency of this package.
  • [BREAKING] It is now a compilation error to apply the @listen decorator to a method that is not compatible with the signature (e: EventTarget) => void, or that has private or protected visibility.
  • [BREAKING] It is now a compilation error to pass zero targets to the @computed decorator factory.

[1.2.0] - 2018-02-21

  • An exception is now thrown if both the tagname parameter to @customElement is provided, and the static is class property is set (except in the case that the is property is not an own-property of the class). Previously the is property would always silently win over the tagname when both were set.
  • An exception is now thrown if the @listen decorator is applied to an element that does not have the DeclarativeEventListeners mixin applied.
  • Decorators now have more constrained type signatures.

[1.1.1] - 2018-02-16

  • Remove npm dependency on reflect-metadata package.

[1.1.0] - 2018-02-14

  • Allow @property to be used together with @computed so that its type can be set.
  • Fix bug where @observe could not be used with Polymer.mixinBehaviors.

[1.0.2] - 2018-01-26

  • Fix missing generated files from 1.0.1 release.

[1.0.1] - 2018-01-26

  • Fix malformed warning about missing type.

[1.0.0] - 2018-01-10

  • Generated typings for the DeclarativeEventListeners mixin are now available at mixins/declarative-event-listeners.d.ts.
  • [BREAKING] The @observe decorator now takes its dependencies as a rest parameter instead of an array (e.g. @observe('foo', 'bar') instead of @observe(['foo', 'bar'])).
  • [BREAKING] Decorators are now located at polymer-decorators.js instead of global.js (same for corresponding .d.ts file).

[0.1.2] - 2018-01-04

  • Added observer and computed properties to the @property decorator options.
  • Added @listen decorator and DeclarativeEventListeners mixin.
  • Fixed bug where use of Polymer.mixinBehaviors with @property or @computed would throw an exception relating to the definition of the element's "properties" property.

[0.1.1] - 2017-09-28

  • Metadata Reflection polyfill is no longer a bower dependency.

[0.1.0] - 2017-09-27

  • Initial release.