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// (C) Copyright 2015 Martin Dougiamas
//
// 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.
angular.module('mm.addons.qtype_algebra')
/**
* Short answer question handlers.
*
* @module mm.addons.qtype_algebra
* @ngdoc service
* @name $mmaQtypeAlgebraHandler
*/
.factory('$mmaQtypeAlgebraHandler', function($mmUtil) {
var self = {};
/**
* Check if a response is complete.
*
* @param {Object} question Question.
* @param {Object} answers Question answers (without prefix).
* @return {Mixed} True if complete, false if not complete, -1 if cannot determine.
*/
self.isCompleteResponse = function(question, answers) {
return answers['answer'] || answers['answer'] === 0;
};
/**
* Whether or not the module is enabled for the site.
*
* @return {Boolean}
*/
self.isEnabled = function() {
return true;
};
/**
* Check if a student has provided enough of an answer for the question to be graded automatically,
* or whether it must be considered aborted.
*
* @param {Object} question Question.
* @param {Object} answers Question answers (without prefix).
* @return {Mixed} True if gradable, false if not gradable, -1 if cannot determine.
*/
self.isGradableResponse = function(question, answers) {
return self.isCompleteResponse(question, answers);
};
/**
* Check if two responses are the same.
*
* @param {Object} question Question.
* @param {Object} prevAnswers Previous answers.
* @param {Object} newAnswers New answers.
* @return {Boolean} True if same, false otherwise.
*/
self.isSameResponse = function(question, prevAnswers, newAnswers) {
return $mmUtil.sameAtKeyMissingIsBlank(prevAnswers, newAnswers, 'answer');
};
/**
* Get the directive.
*
* @param {Object} question The question.
* @return {String} Directive's name.
*/
self.getDirectiveName = function(question) {
return 'mma-qtype-algebra';
};
return self;
});
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