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

Reviewed-By: Adam Misnyovszki <amisnyov@redhat.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/install/ui/src/freeipa/dialog.js b/install/ui/src/freeipa/dialog.js
index 941ff8a29..39c48efd3 100644
--- a/install/ui/src/freeipa/dialog.js
+++ b/install/ui/src/freeipa/dialog.js
@@ -204,6 +204,15 @@ IPA.dialog = function(spec) {
         return that;
     };
 
+    /**
+     * Get field
+     * @param {string} name Field name
+     * @returns {IPA.field}
+     */
+    that.get_field = function(name) {
+        return that.fields.get_field(name);
+    };
+
     /** Validate dialog fields */
     that.validate = function() {
         var valid = true;