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perf(cdk/drag-drop): avoid excessive change detections with zone-patch-rxjs #23272

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merged 1 commit into from
Aug 4, 2021

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crisbeto
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The CdkDrag directive subscribes to NgZone.onStable on init and then unsubscribes after the first emit. This is usually fine, but it can cause change detections if the app is using zone-patch-rxjs.

These changes explicitly run a few sensitive calls outside the zone.

Fixes #23248.

…h-rxjs

The `CdkDrag` directive subscribes to `NgZone.onStable` on init and then unsubscribes after the first emit. This is usually fine, but it can cause change detections if the app is using `zone-patch-rxjs`.

These changes explicitly run a few sensitive calls outside the zone.

Fixes angular#23248.
@crisbeto crisbeto added P3 An issue that is relevant to core functions, but does not impede progress. Important, but not urgent target: patch This PR is targeted for the next patch release labels Jul 29, 2021
@crisbeto crisbeto requested a review from jelbourn July 29, 2021 14:23
@google-cla google-cla bot added the cla: yes PR author has agreed to Google's Contributor License Agreement label Jul 29, 2021
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lgtm

@jelbourn jelbourn added the action: merge The PR is ready for merge by the caretaker label Jul 30, 2021
@zarend zarend merged commit 0baca18 into angular:master Aug 4, 2021
zarend pushed a commit that referenced this pull request Aug 4, 2021
…h-rxjs (#23272)

The `CdkDrag` directive subscribes to `NgZone.onStable` on init and then unsubscribes after the first emit. This is usually fine, but it can cause change detections if the app is using `zone-patch-rxjs`.

These changes explicitly run a few sensitive calls outside the zone.

Fixes #23248.

(cherry picked from commit 0baca18)
zarend pushed a commit that referenced this pull request Aug 4, 2021
…h-rxjs (#23272)

The `CdkDrag` directive subscribes to `NgZone.onStable` on init and then unsubscribes after the first emit. This is usually fine, but it can cause change detections if the app is using `zone-patch-rxjs`.

These changes explicitly run a few sensitive calls outside the zone.

Fixes #23248.

(cherry picked from commit 0baca18)
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action: merge The PR is ready for merge by the caretaker cla: yes PR author has agreed to Google's Contributor License Agreement P3 An issue that is relevant to core functions, but does not impede progress. Important, but not urgent target: patch This PR is targeted for the next patch release
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bug(Drag And Drop): Performance issues with zone-patch-rxjs
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