angular-docs-cn/packages/elements
George Kalpakas 2a330a60ed fix(elements): fire custom element output events during component initialization (#36161)
Previously, event listeners for component output events attached on an
Angular custom element before inserting it into the DOM (i.e. before
instantiating the underlying component) didn't fire for events emitted
during initialization lifecycle hooks, such as `ngAfterContentInit`,
`ngAfterViewInit`, `ngOnChanges` (initial call) and `ngOnInit`.
The reason was that that `NgElementImpl` [subscribed to events][1]
_after_ calling [ngElementStrategy#connect()][2], which is where the
[initial change detection][3] takes place (running the initialization
lifecycle hooks).

This commit fixes this by:
1. Ensuring `ComponentNgElementStrategy#events` is defined and available
   for subscribing to, even before instantiating the component.
2. Ensuring `NgElementImpl` subscribes to `NgElementStrategy#events`
   before calling `NgElementStrategy#connect()` (which initializes the
   component instance).

Jira issue: [FW-2010](https://angular-team.atlassian.net/browse/FW-2010)

[1]: c0143cb2ab/packages/elements/src/create-custom-element.ts (L167-L170)
[2]: c0143cb2ab/packages/elements/src/create-custom-element.ts (L164)
[3]: c0143cb2ab/packages/elements/src/component-factory-strategy.ts (L158)

Fixes #36141

PR Close #36161
2020-06-05 10:36:39 -07:00
..
schematics build: update license headers to reference Google LLC (#37205) 2020-05-26 14:26:58 -04:00
src fix(elements): fire custom element output events during component initialization (#36161) 2020-06-05 10:36:39 -07:00
test fix(elements): fire custom element output events during component initialization (#36161) 2020-06-05 10:36:39 -07:00
BUILD.bazel fix(core): disable tsickle pass when producing APF packages (#37221) 2020-05-21 09:14:47 -07:00
PACKAGE.md docs: add package doc files (#26047) 2018-10-05 15:42:14 -07:00
index.ts build: update license headers to reference Google LLC (#37205) 2020-05-26 14:26:58 -04:00
package.json build: remove wombot proxy registry from package.jsons for release (#37378) 2020-06-01 12:41:19 -04:00
public_api.ts build: update license headers to reference Google LLC (#37205) 2020-05-26 14:26:58 -04:00