Description of the Change

Publicly expose a method for opening Instant Results, allowing third parties to open Instant Results manually.

I originally implemented this as a custom action hook, but I anticipate some refactoring for #2978 and didn't want to commit to an API just yet. For now this just makes openModal() publicly available.

Closes #2507

How to test the Change

Calling the following code to a theme or plugin should cause Instant Results to open when the button is clicked:

<button id="search-blocks" type="button">Search "Blocks"</button>

<script>
window.addEventListener('DOMContentLoaded', () => {
	document.getElementById('search-blocks').addEventListener('click', () => {
		window.epInstantResults.openModal({ search: "blocks" });
	});
});
</script>

Changelog Entry

Added a method for developers to manually open Instant Results, window.epInstantResults.openModal().

Credits

Props @JakePT

Checklist:

• I agree to follow this project's Code of Conduct.
• I have updated the documentation accordingly.
• I have added tests to cover my change.
• All new and existing tests pass.