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refactor(module:dropdown): improve performance #148

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merged 1 commit into from
Aug 29, 2017

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Brooooooklyn
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@Brooooooklyn Brooooooklyn commented Aug 25, 2017

  1. use Observable to replace Subject, which could dispose eventListener.
  2. use ChangeDetectionStrategy.OnPush to reduce check times.

PR Checklist

Please check if your PR fulfills the following requirements:

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[x] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Application (the showcase website) / infrastructure changes
[ ] Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

[ ] Yes
[x] No

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Coverage Status

Coverage decreased (-0.02%) to 40.073% when pulling 88dee68 on Brooooooklyn:refactor/dropdown into b442863 on NG-ZORRO:master.

import { debounceTime } from 'rxjs/operator/debounceTime';
import 'rxjs/add/operator/debounceTime';
import 'rxjs/add/operator/do';
import 'rxjs/add/operator/merge';
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Library should not use rxjs patching mechanism as suggested in angular/components#5314

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Coverage Status

Coverage decreased (-0.02%) to 40.073% when pulling 88dee68 on Brooooooklyn:refactor/dropdown into b442863 on NG-ZORRO:master.

} from '@angular/core';
import { Subject } from 'rxjs/Subject';
import { debounceTime } from 'rxjs/operator/debounceTime';
import 'rxjs/add/operator/debounceTime';
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@trotyl trotyl Aug 25, 2017

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Library should not use rxjs patching mechanism as suggested in angular/components#2622, angular/components#2652, angular/components#3716, angular/components#5314 (original line has been modified)

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resolved

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Coverage Status

Coverage decreased (-0.02%) to 40.066% when pulling 35d92a2 on Brooooooklyn:refactor/dropdown into b442863 on NG-ZORRO:master.

@LinboLen
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are you sure it works?
improve performance ?

this._renderer.listen(this._nzOrigin.elementRef.nativeElement, 'mouseenter', () => this._show());
this._renderer.listen(this._nzOrigin.elementRef.nativeElement, 'mouseleave', () => this._hide());
mouse$ = Observable.create((observer: Observer<boolean>) => {
const disposeMouseEnter = this._renderer.listen(this._nzOrigin.elementRef.nativeElement, 'mouseenter', () => {
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should check whether will fire ngzone. although this component will not check

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Zone propagation for RxJS has been fixed on Zone.js side already.

1. use Observable to replace Subject, which could dispose eventListener.
2. use ChangeDetectionStrategy.OnPush to reduce check times.
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Coverage decreased (-0.02%) to 40.346% when pulling f88c1fa on Brooooooklyn:refactor/dropdown into 8bbc82a on NG-ZORRO:master.

@trotyl
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trotyl commented Aug 29, 2017

Concerns irrelevant to this PR, currently all event triggers are generalized and applied to a debounce of 300ms, but theoretically it should not apply to click, which should be reacted instantly.

@trotyl trotyl merged commit 29a5cbf into NG-ZORRO:master Aug 29, 2017
suraciii pushed a commit to suraciii/ng-zorro-antd that referenced this pull request Aug 30, 2017
* master:
  refactor(module:dropdown): improve performance (NG-ZORRO#148)
  feat(module:tooltip,popconfirm,popover): support OnPush (NG-ZORRO#143)
  release(0.5.0-rc.3): pre-release 0.5.0-rc.3 (NG-ZORRO#166)
  fix(module:carousel): fix carousel auto play bug (NG-ZORRO#164)
  fix(module:input): fix input disabled style bug (NG-ZORRO#160)
  fix(module:input): fix input disabled style bug (NG-ZORRO#108)
  fix(module:affix,anchor,back-top): fix and improve rxjs usage (NG-ZORRO#159)
  feat(module:affix&anchor&back-top&avatar): add components to library (NG-ZORRO#88)
  fix(module:select): fix select reset bug in form (NG-ZORRO#153)
  fix(module:pagination) fix pagination double binding (NG-ZORRO#146)
  fix(module:select): fix option incorrect active status (NG-ZORRO#141)
  feat(module:root): make nz-root optional (NG-ZORRO#36)
@vthinkxie vthinkxie mentioned this pull request Sep 6, 2017
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4 participants