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/**
* AccessibleBlockly
*
* Copyright 2016 Google Inc.
* https://developers.google.com/blockly/
*
* 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.
*/
/**
* @fileoverview Angular2 Service that notifies the user about actions that
* they have taken, by updating an ARIA live region.
* @author sll@google.com (Sean Lip)
*/
blocklyApp.NotificationsService = ng.core
.Class({
constructor: [function() {
this.statusMessage_ = '';
}],
getStatusMessage: function() {
return this.statusMessage_;
},
setStatusMessage: function(newMessage) {
// Introduce a temporary status message, so that if, e.g., two "copy"
// operations are done in succession, both messages will be read.
this.statusMessage_ = '';
// We need a non-zero timeout here, otherwise NVDA does not read the
// notification messages properly.
var that = this;
setTimeout(function() {
that.statusMessage_ = newMessage;
}, 20);
}
});
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