The EventEmitter API we inherited from Node.js and then bastardized was
getting awkward and cumbersome. The number of uses of ve.bind was getting
out of control, and removing events meant caching the bound method in a
property. Many of the "features" of EventEmitter wasn't even being used,
some causing overhead, others just causing bloat. This change cleans up
how EventEmitter is used throughout the codebase.
The new event emitter API includes:
* emit - identical to the previous API, no longer throws an error if you
emit error without a handler
* once - identical to the previous API, still introduces a wrapper* on -
compatible with the previous API but has some new features
* off - identical to removeListener in the previous API
* connect - very similar to addListenerMethods but doesn't wrap callbacks
in closures anymore
* disconnect - new, basically the opposite of addListenerMethods
Another change that is made in this commit is mixing in rather than
inheriting from EventEmitter.
Finally, there are changes throughout the codebase anywhere
connect/disconnect could be used.
Change-Id: Ic3085d39172a8a719ce7f036690f673e59848d3a
ve.dm.Transaction
* Replace operations are now built directly from the
linear model and automatically determine what metadata
replace information they need to include:
** retainMetadata
** replaceMetadata
** insertMetadata
ve.dm.Document
* Metadata array created empty and padded out after data parsing
as we are no longer using Document.spliceData to build it (a new
test checks for correct metadata length)
* spliceData replaced with getMetadataReplace, which instead returns
transactional steps of spliceData (retain, replace, insert)
ve.dm.MetaLinearData
* Add function for merging metadata items together. Only used
once in the code (Document.getMetadataReplace) but useful
for generating test data.
ve.dm.MetaList
* Replace operations with metadata need to calculate new offset
and indices directly, but can't be applied immediately lest they
put a metaItem out of place and affect findItem.
ve.dm.MetaItem
* Add methods to support queued moves as required by MetaList
Test files
* Updated to match new pushReplace API
* Remove any instances of Document.spliceData
* Extra check on sparse metadata array length
* Rewrite spliceData tests as getMetadataReplace tests
* Count expected cases in Transaction(Processor) tests
Bug: 46954
Change-Id: I4edad1c2dd37c723bff2792bab7d694ef17a86dc
Created an IndexValueStore class which can store any object and return
an integer index to its hash map.
Linear data is now stored in ve.dm.LinearData instances. Two subclasses
for element and meta data contain methods specific to those data types
(ElementLinearData and MetaLinearData).
The static methods in ve.dm.Document that inspected data at a given
offset are now instance methods of ve.dm.ElementLinearData.
AnnotationSets (which are no longer OrderedHashSets) have been moved
to /dm and also have to be instantiated with a pointer the store.
Bug: 46320
Change-Id: I249a5d48726093d1cb3e36351893f4bff85f52e2
These events occur when an item is inserted or removed by onTransact(),
so both for insertions/removals done through the MetaList mutators and
insertions/removals done by any other means.
We have to gather these events and batch them up because we have to allow
offset translation and index recomputation to occur first (otherwise
calling .getOffset() and .getIndex() on inserted items doesn't work).
Change-Id: I74a9a21398eca4e9afd7148171af20d439cf7ebd
Add .insertMeta() and .removeMeta() methods to insert and remove
metadata through the meta list. For convenience, there is also a
.remove() method in MetaItem that wraps around removeMeta().
Also rename insertItem() and removeItem() to addInsertedItem() and
deleteRemovedItem() to avoid confusion, and make the MetaList
constructor take a dm.Surface rather than a document so we can call
change().
Change-Id: I4b62a3109404cfd56f5de68938e1db908b03e678
A MetaList is a collection of MetaItems representing all of the
metadata in a ve.dm.Document, and it updates itself live as the
underlying document changes.
Currently this interface is read-only, I'll add mutators next.
Change-Id: If7bfc9563af37e22dcdca9a682d6decc2f6f1872
