* core: add an addFiles() method that only updates state once
Previously, adding 1300-ish files took around 260ms, and looked like
this in Firefox's performance tab:
All of the downward peaks are `setState()` calls and GC.
Now it takes around 60ms, and looks like this:
Here, most of the time is spent generating file IDs and guessing file
types. Those would be areas to look at next.
* dashboard: prevent frequent state update if nothing changed
After the last commit, `addFiles()` still spends a lot of time in
`emit()` and `hideAllPanels()`. The reason is that `addFiles()` still
emits all the hundreds of file-added events, and the Dashboard responds
to each with `hideAllPanels()`, which does a state update. But this all
happens synchronously, and the state almost certainly did not change
since the last `file-added` event that fired a millisecond ago.
This adds a check to avoid the state update if it is not necessary.
Adding 1300 files takes about 40ms now.
With this change, the `addFiles()` call is no longer the slowest
part—now preact rendering all the items is!
* utils: optimize generateFileID and getFileNameAndExtension
Replaces some clever things with more mundane and faster things!
Now, generateFileID is a bunch of string concatenations.
Now, getFileNameAndExtension uses `lastIndexOf()` instead of a regex.
Adding 1300 files takes about 25ms.
* dashboard: use preact-virtual-list
* thumbnail-generator: add `lazy` option
* dashboard: request thumbnails once file item renders the first time
* dashboard: fork preact-virtual-list
* core: add removeFiles() to remove files in bulk
* Implement removeFile() in terms of removeFiles()
* thumbnail-generator: only queue files that can be previewed
* rename size constants to accommodate WIDTH/HEIGHT
* Use new uppy.addFiles in DragDrop and FileInput
* utils: fix getFileNameAndExtension() type
* Rip out the lazy thumbnail generation
* Rip out virtualization.
* Remove virtualization leftovers
* tell future people that this is intentionally verbose
* Update package-lock.json
* henlo i am spell
* Make `addFiles()` respect maxNumberOfFiles
* core: show an informer error if some files fail in bulk add
* locales: fix quotes to make build:locale-pack happy
Co-authored-by: Artur Paikin <artur@arturpaikin.com>
* Update eslint
* Do eslint --fix
* Do not access Object.prototype method 'hasOwnProperty' from target object
* utils: add hasProperty
* eslint --fix
* Disable quote-props for locale files
* add back quotes in locale files
* revert locale files to state on master
* Update react-scripts
