If the event is on the window object, topScroll, for instance, the topLevelTarget will not have getAttribute defined. Restore the previous `|| !topLevelTarget.attributes` check to avoid an error on every scroll.
I find myself often using (modified) examples to test in IE and it's a pain to have to add the shims in every time. Might as well just add them in always.
Can be run with `node_modules/.bin/jest` for now; didn't want to disturb the grunt setup.
Right now one test fails with:
```
FAIL browser/ui/__tests__/ReactDOMComponent-test.js (1.423s)
● ReactDOMComponent › updateDOM › it should update styles when mutating style object
- Expected: '0' toEqual: '0.5'
at Spec.<anonymous> (src/browser/ui/__tests__/ReactDOMComponent-test.js:99:33)
```
which I can only assume is a jsdom problem -- no other asserts fail.
cf. #1376.
This is useful for SVG. Dynamically adding and removing `<title>` elements in SVG still won't work properly because of getMarkupWrap but this at least lets you include it in initial render and then unmount the entire `<svg>` without problems.
For boolean-like objects, I've added hasOwnProperty checks in addition to the existing truthiness check even though for most of these dicts, we leave out false keys instead of setting them explicitly to false.
In DOMPropertyOperations, we don't need to check hasOwnProperty if the property is in isStandardName because (with the exception of getPossibleStandardName) the dicts on DOMProperty will now be consistently populated with every valid attribute.
With this, multiple setState calls triggered by a componentDidUpdate handler (or similar) will be batched together, regardless of if the original setState call was in a batching context.
I also cleaned up some inconsistencies with the order of component updates and callbacks in situations where one component's update directly causes another to update.
Fixes#1147. Helps with #1353 and #1245 as well, though doesn't completely fix them yet.
Test Plan:
grunt test
Currently require('ReactDefaultPerf').printExclusive() shows render
time and aggregate componentMount time.
This makes it show exclusive mount time by tracking a stack.
Fixes#1505.
Confusingly, the uglify-js package provides the `uglifyjs` binary and `npm run-script build` didn't work if uglify-js wasn't installed globally; now it does.
Ben Alpert
Jeff Morrison
Paul O’Shannessy
Ian Obermiller
G Scott Olson
Pete Hunt
Alexander Solovyov
Nate Hunzaker
Thomas Shafer
Dmitry Mazuro
Jan Kassens
Cheng Lou
Josh Duck
Andreas Svensson