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|
/* Authors:
* Petr Vobornik <pvoborni@redhat.com>
*
* Copyright (C) 2013 Red Hat
* see file 'COPYING' for use and warranty information
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
define(['dojo/_base/declare',
'dojo/_base/lang',
'dojo/on',
'./builder',
'./field',
'./ordered-map'
],
function(declare, lang, on, builder, field_mod, ordered_map) {
/**
* Form mixin
*
* Manages fields and related logic.
*
* Expects that this mixin will be mixed in a class which will implement
* `Stateful`.
*
* @class FormMixin
*/
var FormMixin = declare([], {
/**
* Some field is dirty
* @property {boolean}
*/
dirty: null,
/**
* Fields
* @property {ordered_map}
*/
fields: null,
/**
* Builds fields on add if not already built
*
* @property {field.field_builder}
*/
field_builder: null,
/**
* Raised when `dirty` state changes
* @event dirty-change
*/
/**
* Raised after fields reset
* @event reset
*/
/**
* Get field by name
* @param {string} name
*/
get_field: function(name) {
return this.fields.get(name);
},
/**
* Get all fields
* @return {Array.<IPA.field>}
*/
get_fields: function() {
return this.fields.values;
},
/**
* Add field
* @param {IPA.field|Object|String} field
* Field or field spec
*/
add_field: function(field) {
field.container = this;
var built = this.field_builder.build_field(field);
this.register_field_listeners(built);
this.fields.put(field.name, built);
return built;
},
/**
* Add multiple fields
* @param {Array} fields
*/
add_fields: function(fields) {
if (!fields) return [];
var built = [];
for (var i=0; i<fields.length; i++) {
var f = this.add_field(fields[i]);
built.push(f);
}
return built;
},
/**
* Registers listeners for field events
* @param {IPA.field} field
* @protected
*/
register_field_listeners: function(field) {
on(field, 'dirty-change', lang.hitch(this, this.on_field_dirty_change));
},
/**
* Field's dirty-change handler
* @param {Object} event
* @protected
* @fires dirty-change
*/
on_field_dirty_change: function(event) {
var old = this.dirty;
if (event.dirty) {
this.dirty = true;
} else {
this.dirty = this.is_dirty();
}
if (old !== this.dirty) {
this.emit('dirty-change', { source: this, dirty: this.dirty });
}
},
/**
* Perform check if any field is dirty
*
* @return {boolean}
* - true: some field is dirty
* - false: all field's aren't dirty
*/
is_dirty: function() {
var fields = this.get_fields();
for (var i=0; i<fields.length; i++) {
if (fields[i].enabled && fields[i].dirty) {
return true;
}
}
return false;
},
/**
* Reset all fields
* @fires reset
*/
reset: function() {
var fields = this.get_fields();
for (var i=0; i<fields.length; i++) {
var field = fields[i];
field.reset();
}
this.emit('reset', { source: this });
},
/**
* Validate all fields
* @return {boolean} true when all fields are valid
*/
validate: function() {
var valid = true;
var fields = this.get_fields();
for (var i=0; i<fields.length; i++) {
var field = fields[i];
valid = field.validate() && field.validate_required() && valid;
}
return valid;
},
/** Constructor */
constructor: function(spec) {
this.fields = ordered_map();
var builder_spec = spec.field_builder || field_mod.field_builder;
this.field_builder = builder.build(null, builder_spec);
this.dirty = false;
}
});
return FormMixin;
});
|
