Add OTB Button Click Tracking (close #1267)

[greg-el]

This PR adds a plugin for automatic button click tracking, similar to the existing link click tracking.

It provides a single method, enableButtonClickTracking. Which accepts a couple of options:

enableButtonClickTracking.filter

This allows the user to provide either an allowlist, denylist, or a custom callback, that will only track a click if the element that has been clicked on passes the filter, for example of a function filter that will accept the following button:

<button id="my-cool-button">Click Here</button>

filter: (elem: HtmlElement) => elem.id === "my-cool-button")

enableButtonClickTracking.context

Allows attaching a dynamic entity to the button click events.

note: The integration tests won't pass on CI, as the button click schema isn't on Iglu Central yet (see snowplow/iglu-central@master...release/r150)

[bundlemon]

BundleMon

Files added (6)

Status	Path	Size	Limits
✅	libraries/browser-tracker-core/dist/index.mod ule.js	+25.6KB	26KB / +10%
✅	trackers/javascript-tracker/dist/sp.js	+24.73KB	25KB / +10%
✅	trackers/javascript-tracker/dist/sp.lite.js	+15.04KB	15.5KB / +10%
✅	trackers/browser-tracker/dist/index.umd.min.j s	+14.91KB	15KB / +10%
✅	libraries/tracker-core/dist/index.module.js	+13.36KB	15KB / +10%
✅	trackers/browser-tracker/dist/index.module.js	+3.51KB	5KB / +10%

Total files change +97.15KB 0%

Final result: ✅

View report in BundleMon website ➡️

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Current branch size history

[matus-tomlein]

Very nice implementation, great work! 👍

[matus-tomlein]

LGTM! 👍