* Don't store the full style attribute change, as small mutations to single style properties result in storage of a rewrite for the full style attribute, which may be very large.
Had an example of a website using http://schillmania.com/projects/snowstorm/ where many direct style changes were happening every second across many 'snowflake' elements, with each attribute change looking like:
"style":"color: rgb(255, 255, 255); position: absolute; width: 8px; height: 8px; font-family: arial, verdana; overflow: hidden; font-weight: normal; z-index: 0; display: block; bottom: auto; opacity: 1; padding: 0px; margin: 0px; font-size: 10px; line-height: 10px; text-align: center; vertical-align: baseline; left: 242.807px; top: 85.7332px;"
even though maybe just the left/top position had been changed
* More compact storage for the much more common attribute value without an `!important` flag - saves 6 chars per style attr in the json :)
* Fix bug: attributes weren't getting removed after changes to treatment of 'style' attributes
* Fix sheet insertion
Restore skip duration
Use virtualStyleRulesMap to re-populate stylesheet on Flush event
Clear virtualStyleRulesMap after flush applied
* Support rule deletion in virtual processing
* Simply restoreNodeSheet with early aborts
* Encountered a bug where firstFullSnapshot was played twice because timer was immediately started and reached the snapshot before the setTimeout returned
* Ignoring a FullSnapshot needs to be a one-time only thing, as otherwise we'll ignore it after scrubbing (restarting play head at a particular time). This is a problem if mutations have altered the player state, and we try to replay those mutations, so we e.g. try to remove an element that has already been removed because we haven't reset the FullSnapshot state
* Some `npm run typings` related fixups
* add basic html snapshot functionality
* move restoreNodeSheet to it's own module
* Refactor virtual style rules to buffer changes.
Only applies changes on flush.
`virtualStyleRulesMap` now works with strings instead of CSSRules.
CSSRules can only be via made `.insertRule` on CSSStyleSheet in most browsers.
And `new CSSStyleSheet()` only works in Chrome currently.
* remove unused code
* move VirtualStyleRules from CSSRule to string in tests
* correct paths for tests
* naming
* create and restore style snapshots for virtual nodes
* update replayer snapshot
* move storeCSSRules to virtual-styles.ts
* try/catch access to .sheet in case of access errors
* clean up tests
Co-authored-by: Vladimir Milenko <vladimir.milenko@uber.com>
Co-authored-by: Eoghan Murray <eoghan@getthere.ie>
These were removed in 8ed1c999cf in order to smooth over differences in test environments
so have maintained that by converting pixel values to 'Npx' (could also try rounding, but didn't attempt that)
* introduce pako and add general packer interface
* add tests for packer
* use function API instead of class API for better tree shaking support
* refcatoring the rollup bundle config
* hack together stylesheet observer
* Add test coverage for insertRule/deleteRule on stylesheets
* Add new observers
* update patch based on changes to master
* Functioning event recording
* Remove print statements
* Fix ID usage and mark add vs remove
* Correct type
Co-authored-by: Jon Perl <perl.jonathan@gmail.com>
