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Trigger events once #38385

merged 3 commits into from
Feb 10, 2021

Trigger events once #38385

merged 3 commits into from
Feb 10, 2021


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@jvillafanez jvillafanez commented Feb 9, 2021


Prevent the registration of the same event listener several times, which causes the same action (from the duplicated listeners) to be performed multiple times.

Primary problem is with the "urlChanged" event, which causes an ajax request to be thrown. This means that, without this fix, the ajax requests performed were increasing along with the increasing event listeners being registered for that event.
The other events don't seem to be too critical since the attached action is pretty light.

Related Issue

Helps with

Motivation and Context

No need to register the same event listener twice

How Has This Been Tested?

Mostly tested going back and forth between the "all files" and "shared with you" sections in the files view, as well as checking there is no apparent problem with the scrolling in those sections.
Event registration has been checked with the firefox dev tools, ensuring there is no increasing event associated with the target web element. There could be multiple listeners for the same event, but it's expected to be for different purposes (not duplicated)

Screenshots (if appropriate):

Types of changes

  • Bug fix (non-breaking change which fixes an issue)
  • New feature (non-breaking change which adds functionality)
  • Database schema changes (next release will require increase of minor version instead of patch)
  • Breaking change (fix or feature that would cause existing functionality to change)
  • Technical debt
  • Tests only (no source changes)


  • Code changes
  • Unit tests added
  • Acceptance tests added
  • Documentation ticket raised:
  • Changelog item, see TEMPLATE

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update-docs bot commented Feb 9, 2021

Thanks for opening this pull request! The maintainers of this repository would appreciate it if you would create a changelog item based on your changes.

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@JammingBen JammingBen left a comment

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Didn't know that namespacing jQuery-events is a thing, cool stuff 👍

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Looks good. Fixes #37085

@AlexAndBear AlexAndBear self-requested a review February 9, 2021 14:03
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sonarcloud bot commented Feb 9, 2021

Kudos, SonarCloud Quality Gate passed!

Bug A 0 Bugs
Vulnerability A 0 Vulnerabilities
Security Hotspot A 0 Security Hotspots
Code Smell A 0 Code Smells

No Coverage information No Coverage information
No Duplication information No Duplication information

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enbrnz commented Mar 10, 2021

This patch was provided to a customer because of potential query optimization in

The customer now reports that they discovered that they had to revert the patch, because the page "Shared with you" would no longer show all shares.

@micbar @jnweiger

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5 participants