[Freeipa-devel] [PATCH] 565-568 webui: field and widget binding refactoring

[Petr Vobornik]

The last refactoring I did while implementing RCUE login or more 
precisely support for standalone facets which have forms but are not 
details facets.

[PATCH] webui: field and widget binding refactoring

This is a Web UI wide change. Fields and Widgets binding was refactored
to enable proper two-way binding between them. This should allow to have
one source of truth (field) for multiple consumers - widgets or something
else. One of the goal is to have fields and widget implementations
independent on each other. So that one could use a widget without field
or use one field for multiple widgets, etc..

Basically a fields logic was split into separate components:
- adapters
- parsers & formatters
- binder

Adapters
- extract data from data source (FreeIPA RPC command result)
- prepares them for commands.

Parsers
- parse extracted data to format expected by field
- parse widget value to format expected by field

Formatters
- format field value to format suitable for widgets
- format field value to format suitable for adapter

Binder
- is a communication bridge between field and widget
- listens to field's and widget's events and call appropriate methods

Some side benefits:
- better validation reporting in multivalued widget

[PATCH] webui: replace widget's hidden property with visible

Hidden was used only in ACI. There is no reason to have two properties
which are negations of each other.

[PATCH] webui: change widget updated event into value change event

This change allow us to use proper two way binding between a field and
a widget. In previous implementation field was not changed if something
changed the value of a widget in 'update'. Now listeners are notified
when the widget value is changed by: calling 'update', 'set_value'
or by user change.

[PATCH] webui-tests: binding test suite

Add basic tests for two-way binding between a field and two widgets

-- 
Petr Vobornik
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