Changes how object mutation works behind the scenes in order to keep objects in sync automatically when their model changes.
* The way that objects are mutated and observed has not changed, openmct.objects.mutate and openmct.objects.observe should still be used in the same way that they were before.
* Behind the scenes, domain objects that are mutable are wrapped in a new MutableDomainObject that exposes mutator and observer functions that allow objects to be mutated in such a way that all instances can be kept in sync.
* It is now possible to retrieve MutableDomainObjects from the API, instead of regular domain objects. These are automatically updated when mutation occurs on any instance of the object, replacing the need for "*" listeners. Note that the view API now provides objects in this form by default. Therefore, you do not need to do anything differently in views, the domain objects will just magically keep themselves up to date.
* If for some reason you need to retrieve an object manually via openmct.objects.get (you should ask why you need to do this) and you want it to magically keep itself in sync, there is a new API function named openmct.objects.getMutable(identifier). Note that if you do this you will be responsible for the object's lifecycle. It relies on listeners which must be destroyed when the object is no longer needed, otherwise memory leaks will occur. You can destroy a MutableDomainObject and its (internal) listeners by calling openmct.objects.destroyMutable(mutableDomainObject). Any listeners created by calls to openmct.objects.observe need to be cleaned up separately.
* If the composition of a MutableDomainObject is retrieved using the Composition API, all children will be returned as MutableDomainObjects automatically. Their lifecycle will be managed automatically, and is tied to the lifecycle of the parent.
Any MutableDomainObject provided by the Open MCT framework itself (eg. provided to view providers by the View API, or from the composition API) will have its lifecycle managed by Open MCT, you don't need to worry destroying it.
* no-implicit-coercion and no-unneeded-ternary
* End every line with a semicolon
* Spacing and formatting
* Enabled semi-spacing
* Applies npm run lint:fix to code after master merge
* Fix merge issues
* Switched operator-linebreak to 'before'
Co-authored-by: Joshi <simplyrender@gmail.com>
* Implement 'save' method in Object API
* Refactor legacy persistence code to work with new save object API
* Added 'isPersistable' check to object API
* Fixed incompatibility between object API changes and composition policies
* Make save method private
Co-authored-by: Deep Tailor <deep.j.tailor@nasa.gov>
* Upgrades lodash
* Replaces some usage of lodash with native functions.
* Adds linting to catch cases where native functions could be used instead of lodash functions
* Renamed testTools to testUtils
Co-authored-by: Joshi <simplyrender@gmail.com>
Co-authored-by: David Tsay <david.e.tsay@nasa.gov>
Co-authored-by: David Tsay <3614296+davetsay@users.noreply.github.com>
Co-authored-by: Andrew Henry <akhenry@gmail.com>
* Implemented drag-and-drop composition
* Added composition policy for tables
* Reimplemented elements pool in Vue
* No need to resolve all objects on the navigated path
* Only show elements pool in edit mode
* Remove old elements pool
* Updated legacy code to use composition policy API
* Keep object in sync when mutated
The composition policy now takes a child instance instead
of the child type, as in all cases we have access to the child
object.
This allows new-style objects to be contained by old-style objects.
Updated all composition policies to use standardized argument names
instead of `context` and `candidate`; this makes it easier to
understand.
Updated AddActionProvider to hardcode the object types supported.
