foam-framework
Version:
MVC metaprogramming framework
69 lines (65 loc) • 1.62 kB
JavaScript
/**
* @license
* Copyright 2015 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
CLASS({
package: 'foam.persistence',
name: 'DataUpdateSinker',
properties: [
{
name: 'data',
postSet: function(old, nu) {
if ( old ) old.removeListener(this.onUpdate_);
if ( nu ) nu.addListener(this.onUpdate_);
}
},
{
model_: 'BooleanProperty',
name: 'feedback_',
defaultValue: false
},
{
name: 'sink'
},
{
name: 'error'
}
],
listeners: [
{
name: 'onUpdate_',
code: function() {
if ( ! this.feedback_ ) this.onUpdate();
}
},
{
name: 'onUpdate',
isMerged: 100,
code: function() {
this.sink.put(this.data, {
put: function(obj) {
this.error = '';
this.feedback_ = true;
this.data.copyFrom(obj);
this.feedback_ = false;
}.bind(this),
error: function(e) {
this.error = e;
}.bind(this)
});
}
}
]
});