v7.0.0

7.0.0 (2020-11-11)

Bug Fixes

• Only instantiating a ResizeObserver instance if there's actually something to
  observe. This for example means that if you pass in null or undefined as the
  ref, or if neither the default ref or RefCallback returned from the hook are
  in use, then no ResizeObserver instance will get created until there's an
  actual element to observe. Resolves: #42
• Fixed an error where in certain edge cases the hook tried to set state when
  its host component already unmounted.

Features

• The ref option now accepts raw elements as well.

BREAKING CHANGES

• The returned ref is now a RefCallback, not a ref object. Resolves: #43, #45
• The returned ref will always be the same RefCallback.
  Previously when a custom ref object was passed, it was returned as well from
  the hook as "ref".
• Compared to 6.2.0-alpha.1 There's no callbackRef return value anymore.

Misc

• Using package.json file attr instead of gitignore (c58f34e)
• Added Semantic Release (55f6368)
• Handling custom refs (through options), the default ref and the RefCallback
  has been greatly refactored internally (into the useResolvedElement
  hook), to handle more edge cases with the way refs are handled.
• Tests based on react testing library were refactored to make them much simpler
  and more approachable.
• Added contributing guidelines
• Added tests in real browsers with BrowserStack, so that we ensure the lib
  works all the way back to IE11.
• Switched to GitHub Actions from Travis, as builds started to freeze. (They've
  also announced a limit on OS projects.)