Set empty value to color picker when input is reset to update preview

[gperis]

Description (*)

When the color picker input is reset by an event, the preview doesn't update accordingly as the value is undefined and the logic to update it gets skipped. With this change, if the value is undefined, we set it to an empty value.

Fixed Issues (if relevant)

1. The Color picker is not reset on switching bookmarks adobe-stock-integration#822: The Color picker is not reset on switching bookmarks

Manual testing scenarios (*)

I couldn't find any areas in the core where the color picker is being used as part of the grid filters in the backend.

• From Magento Admin go to Content - Pages, click Add New Page
• Expand Content Click Show / Hide Editor, select Insert Image...
• Click Search Adobe Stock
• Create a new Filter view
• Click Filters and Apply any filter, Price - Standard for example (this step is done to enable Save View As button)
• Click Default View dropdown and select Save View As...
• Type in "New View", for example, and click Enter key
• Click on the Color square and select any color, Black for example
• Do not Apply it, switch to Default View and observe the Color square

Questions or comments

It would be nice to get some feedback on the fix and if there is a better way to deal with the issue.

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds are green)

[m2-assistant]

Hi @gperis. Thank you for your contribution
Here is some useful tips how you can test your changes using Magento test environment.
Add the comment under your pull request to deploy test or vanilla Magento instance:

• @magento give me test instance - deploy test instance based on PR changes
• @magento give me 2.4-develop instance - deploy vanilla Magento instance

For more details, please, review the Magento Contributor Guide documentation.

[sivaschenko]

As the functionality is used only in Adobe Stock Integration UI - should be covered by functional tests as part of Adobe Stock Integration

[magento-engcom-team]

Hi @sivaschenko, thank you for the review.
ENGCOM-6467 has been created to process this Pull Request

[engcom-Delta]

✔️ QA passed

[m2-assistant]

Hi @gperis, thank you for your contribution!
Please, complete Contribution Survey, it will take less than a minute.
Your feedback will help us to improve contribution process.