Proyectos de Subversion Moodle

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// This file is part of Moodle - http://moodle.org/
2
//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
7
//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
10
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11
// GNU General Public License for more details.
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//
13
// You should have received a copy of the GNU General Public License
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// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
15
 
16
//
17
// SCORM 1.2 API Implementation
18
//
19
function AICCapi(def, cmiobj, scormauto, cfgwwwroot, scormid, scoid, attempt, viewmode, currentorg, sesskey, cmid, autocommit) {
20
 
21
    var prerequrl = cfgwwwroot + "/mod/scorm/prereqs.php?a=" + scormid + "&scoid=" + scoid + "&attempt=" + attempt + "&mode=" + viewmode + "&currentorg=" + currentorg + "&sesskey=" + sesskey;
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    var datamodelurl = cfgwwwroot + "/mod/scorm/datamodel.php";
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    var datamodelurlparams = "id=" + cmid + "&a=" + scormid + "&sesskey=" + sesskey + "&attempt=" + attempt + "&scoid=" + scoid;
24
 
25
    // Standard Data Type Definition
26
    CMIString256 = '^.{0,255}$';
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    CMIString4096 = '^.{0,4096}$';
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    CMITime = '^([0-2]{1}[0-9]{1}):([0-5]{1}[0-9]{1}):([0-5]{1}[0-9]{1})(\.[0-9]{1,2})?$';
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    CMITimespan = '^([0-9]{2,4}):([0-9]{2}):([0-9]{2})(\.[0-9]{1,2})?$';
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    CMIInteger = '^\\d+$';
31
    CMISInteger = '^-?([0-9]+)$';
32
    CMIDecimal = '^-?([0-9]{0,3})(\.[0-9]{1,2})?$';
33
    CMIIdentifier = '^\\w{1,255}$';
34
    CMIFeedback = CMIString256; // This must be redefined
35
    CMIIndex = '[._](\\d+).';
36
 
37
    // Vocabulary Data Type Definition
38
    CMIStatus = '^passed$|^completed$|^failed$|^incomplete$|^browsed$';
39
    CMIStatus2 = '^passed$|^completed$|^failed$|^incomplete$|^browsed$|^not attempted$';
40
    CMIExit = '^time-out$|^suspend$|^logout$|^$';
41
    CMIType = '^true-false$|^choice$|^fill-in$|^matching$|^performance$|^sequencing$|^likert$|^numeric$';
42
    CMIResult = '^correct$|^wrong$|^unanticipated$|^neutral$|^([0-9]{0,3})?(\.[0-9]{1,2})?$';
43
    NAVEvent = '^previous$|^continue$';
44
 
45
    // Children lists
46
    cmi_children = 'core, suspend_data, launch_data, comments, objectives, student_data, student_preference, interactions';
47
    core_children = 'student_id, student_name, lesson_location, credit, lesson_status, entry, score, total_time, lesson_mode, exit, session_time';
48
    score_children = 'raw, min, max';
49
    comments_children = 'content, location, time';
50
    objectives_children = 'id, score, status';
51
    student_data_children = 'attempt_number, tries, mastery_score, max_time_allowed, time_limit_action';
52
    student_preference_children = 'audio, language, speed, text';
53
    interactions_children = 'id, objectives, time, type, correct_responses, weighting, student_response, result, latency';
54
 
55
    // Data ranges
56
    score_range = '0#100';
57
    audio_range = '-1#100';
58
    speed_range = '-100#100';
59
    weighting_range = '-100#100';
60
    text_range = '-1#1';
61
 
62
    // The AICC data model
63
    var datamodel = {};
64
    for(scoid in def){
65
        datamodel[scoid] = {
66
            'cmi._children':{'defaultvalue':cmi_children, 'mod':'r', 'writeerror':'402'},
67
            'cmi._version':{'defaultvalue':'3.4', 'mod':'r', 'writeerror':'402'},
68
            'cmi.core._children':{'defaultvalue':core_children, 'mod':'r', 'writeerror':'402'},
69
            'cmi.core.student_id':{'defaultvalue':def[scoid]['cmi.core.student_id'], 'mod':'r', 'writeerror':'403'},
70
            'cmi.core.student_name':{'defaultvalue':def[scoid]['cmi.core.student_name'], 'mod':'r', 'writeerror':'403'},
71
            'cmi.core.lesson_location':{'defaultvalue':def[scoid]['cmi.core.lesson_location'], 'format':CMIString256, 'mod':'rw', 'writeerror':'405'},
72
            'cmi.core.credit':{'defaultvalue':def[scoid]['cmi.core.credit'], 'mod':'r', 'writeerror':'403'},
73
            'cmi.core.lesson_status':{'defaultvalue':def[scoid]['cmi.core.lesson_status'], 'format':CMIStatus, 'mod':'rw', 'writeerror':'405'},
74
            'cmi.core.exit':{'defaultvalue':def[scoid]['cmi.core.exit'], 'format':CMIExit, 'mod':'w', 'readerror':'404', 'writeerror':'405'},
75
            'cmi.core.entry':{'defaultvalue':def[scoid]['cmi.core.entry'], 'mod':'r', 'writeerror':'403'},
76
            'cmi.core.score._children':{'defaultvalue':score_children, 'mod':'r', 'writeerror':'402'},
77
            'cmi.core.score.raw':{'defaultvalue':def[scoid]['cmi.core.score.raw'], 'format':CMIDecimal, 'range':score_range, 'mod':'rw', 'writeerror':'405'},
78
            'cmi.core.score.max':{'defaultvalue':def[scoid]['cmi.core.score.max'], 'format':CMIDecimal, 'range':score_range, 'mod':'rw', 'writeerror':'405'},
79
            'cmi.core.score.min':{'defaultvalue':def[scoid]['cmi.core.score.min'], 'format':CMIDecimal, 'range':score_range, 'mod':'rw', 'writeerror':'405'},
80
            'cmi.core.session_time':{'format':CMITimespan, 'mod':'w', 'defaultvalue':'00:00:00', 'readerror':'404', 'writeerror':'405'},
81
            'cmi.core.total_time':{'defaultvalue':def[scoid]['cmi.core.total_time'], 'mod':'r', 'writeerror':'403'},
82
            'cmi.core.lesson_mode':{'defaultvalue':def[scoid]['cmi.core.lesson_mode'], 'mod':'r', 'writeerror':'403'},
83
            'cmi.suspend_data':{'defaultvalue':def[scoid]['cmi.suspend_data'], 'format':CMIString4096, 'mod':'rw', 'writeerror':'405'},
84
            'cmi.launch_data':{'defaultvalue':def[scoid]['cmi.launch_data'], 'mod':'r', 'writeerror':'403'},
85
            'cmi.comments':{'defaultvalue':def[scoid]['cmi.comments'], 'format':CMIString4096, 'mod':'rw', 'writeerror':'405'},
86
            // deprecated evaluation attributes
87
            'cmi.evaluation.comments._count':{'defaultvalue':'0', 'mod':'r', 'writeerror':'402'},
88
            'cmi.evaluation.comments._children':{'defaultvalue':comments_children, 'mod':'r', 'writeerror':'402'},
89
            'cmi.evaluation.comments.n.content':{'defaultvalue':'', 'pattern':CMIIndex, 'format':CMIString256, 'mod':'rw', 'writeerror':'405'},
90
            'cmi.evaluation.comments.n.location':{'defaultvalue':'', 'pattern':CMIIndex, 'format':CMIString256, 'mod':'rw', 'writeerror':'405'},
91
            'cmi.evaluation.comments.n.time':{'defaultvalue':'', 'pattern':CMIIndex, 'format':CMITime, 'mod':'rw', 'writeerror':'405'},
92
            'cmi.comments_from_lms':{'mod':'r', 'writeerror':'403'},
93
            'cmi.objectives._children':{'defaultvalue':objectives_children, 'mod':'r', 'writeerror':'402'},
94
            'cmi.objectives._count':{'mod':'r', 'defaultvalue':'0', 'writeerror':'402'},
95
            'cmi.objectives.n.id':{'pattern':CMIIndex, 'format':CMIIdentifier, 'mod':'rw', 'writeerror':'405'},
96
            'cmi.objectives.n.score._children':{'pattern':CMIIndex, 'mod':'r', 'writeerror':'402'},
97
            'cmi.objectives.n.score.raw':{'defaultvalue':'', 'pattern':CMIIndex, 'format':CMIDecimal, 'range':score_range, 'mod':'rw', 'writeerror':'405'},
98
            'cmi.objectives.n.score.min':{'defaultvalue':'', 'pattern':CMIIndex, 'format':CMIDecimal, 'range':score_range, 'mod':'rw', 'writeerror':'405'},
99
            'cmi.objectives.n.score.max':{'defaultvalue':'', 'pattern':CMIIndex, 'format':CMIDecimal, 'range':score_range, 'mod':'rw', 'writeerror':'405'},
100
            'cmi.objectives.n.status':{'pattern':CMIIndex, 'format':CMIStatus2, 'mod':'rw', 'writeerror':'405'},
101
            'cmi.student_data._children':{'defaultvalue':student_data_children, 'mod':'r', 'writeerror':'402'},
102
            'cmi.student_data.attempt_number':{'defaultvalue':def[scoid]['cmi.student_data.attempt_number'], 'mod':'r', 'writeerror':'402'},
103
            'cmi.student_data.tries.n.score.raw':{'defaultvalue':'', 'pattern':CMIIndex, 'format':CMIDecimal, 'range':score_range, 'mod':'rw', 'writeerror':'405'},
104
            'cmi.student_data.tries.n.score.min':{'defaultvalue':'', 'pattern':CMIIndex, 'format':CMIDecimal, 'range':score_range, 'mod':'rw', 'writeerror':'405'},
105
            'cmi.student_data.tries.n.score.max':{'defaultvalue':'', 'pattern':CMIIndex, 'format':CMIDecimal, 'range':score_range, 'mod':'rw', 'writeerror':'405'},
106
            'cmi.student_data.tries.n.status':{'pattern':CMIIndex, 'format':CMIStatus2, 'mod':'rw', 'writeerror':'405'},
107
            'cmi.student_data.tries.n.time':{'pattern':CMIIndex, 'format':CMITime, 'mod':'rw', 'writeerror':'405'},
108
            'cmi.student_data.mastery_score':{'defaultvalue':def[scoid]['cmi.student_data.mastery_score'], 'mod':'r', 'writeerror':'403'},
109
            'cmi.student_data.max_time_allowed':{'defaultvalue':def[scoid]['cmi.student_data.max_time_allowed'], 'mod':'r', 'writeerror':'403'},
110
            'cmi.student_data.time_limit_action':{'defaultvalue':def[scoid]['cmi.student_data.time_limit_action'], 'mod':'r', 'writeerror':'403'},
111
            'cmi.student_data.tries_during_lesson':{'defaultvalue':def[scoid]['cmi.student_data.tries_during_lesson'], 'mod':'r', 'writeerror':'402'},
112
            'cmi.student_preference._children':{'defaultvalue':student_preference_children, 'mod':'r', 'writeerror':'402'},
113
            'cmi.student_preference.audio':{'defaultvalue':'0', 'format':CMISInteger, 'range':audio_range, 'mod':'rw', 'writeerror':'405'},
114
            'cmi.student_preference.language':{'defaultvalue':'', 'format':CMIString256, 'mod':'rw', 'writeerror':'405'},
115
            'cmi.student_preference.speed':{'defaultvalue':'0', 'format':CMISInteger, 'range':speed_range, 'mod':'rw', 'writeerror':'405'},
116
            'cmi.student_preference.text':{'defaultvalue':'0', 'format':CMISInteger, 'range':text_range, 'mod':'rw', 'writeerror':'405'},
117
            'cmi.interactions._children':{'defaultvalue':interactions_children, 'mod':'r', 'writeerror':'402'},
118
            'cmi.interactions._count':{'mod':'r', 'defaultvalue':'0', 'writeerror':'402'},
119
            'cmi.interactions.n.id':{'pattern':CMIIndex, 'format':CMIIdentifier, 'mod':'w', 'readerror':'404', 'writeerror':'405'},
120
            'cmi.interactions.n.objectives._count':{'pattern':CMIIndex, 'mod':'r', 'defaultvalue':'0', 'writeerror':'402'},
121
            'cmi.interactions.n.objectives.n.id':{'pattern':CMIIndex, 'format':CMIIdentifier, 'mod':'w', 'readerror':'404', 'writeerror':'405'},
122
            'cmi.interactions.n.time':{'pattern':CMIIndex, 'format':CMITime, 'mod':'w', 'readerror':'404', 'writeerror':'405'},
123
            'cmi.interactions.n.type':{'pattern':CMIIndex, 'format':CMIType, 'mod':'w', 'readerror':'404', 'writeerror':'405'},
124
            'cmi.interactions.n.correct_responses._count':{'pattern':CMIIndex, 'mod':'r', 'defaultvalue':'0', 'writeerror':'402'},
125
            'cmi.interactions.n.correct_responses.n.pattern':{'pattern':CMIIndex, 'format':CMIFeedback, 'mod':'w', 'readerror':'404', 'writeerror':'405'},
126
            'cmi.interactions.n.weighting':{'pattern':CMIIndex, 'format':CMIDecimal, 'range':weighting_range, 'mod':'w', 'readerror':'404', 'writeerror':'405'},
127
            'cmi.interactions.n.student_response':{'pattern':CMIIndex, 'format':CMIFeedback, 'mod':'w', 'readerror':'404', 'writeerror':'405'},
128
            'cmi.interactions.n.result':{'pattern':CMIIndex, 'format':CMIResult, 'mod':'w', 'readerror':'404', 'writeerror':'405'},
129
            'cmi.interactions.n.latency':{'pattern':CMIIndex, 'format':CMITimespan, 'mod':'w', 'readerror':'404', 'writeerror':'405'},
130
            'nav.event':{'defaultvalue':'', 'format':NAVEvent, 'mod':'w', 'readerror':'404', 'writeerror':'405'}
131
        };
132
    }
133
 
134
    var cmi, nav;
135
    function initdatamodel(scoid){
136
        prerequrl = cfgwwwroot + "/mod/scorm/prereqs.php?a=" + scormid + "&scoid=" + scoid + "&attempt=" + attempt + "&mode=" + viewmode + "&currentorg=" + currentorg + "&sesskey=" + sesskey;
137
        datamodelurlparams = "id=" + cmid + "&a=" + scormid + "&sesskey=" + sesskey + "&attempt=" + attempt + "&scoid=" + scoid;
138
 
139
        //
140
        // Datamodel inizialization
141
        //
142
        cmi = new Object();
143
            cmi.core = new Object();
144
            cmi.core.score = new Object();
145
            cmi.objectives = new Object();
146
            cmi.student_data = new Object();
147
            cmi.student_preference = new Object();
148
            cmi.interactions = new Object();
149
            // deprecated evaluation attributes
150
            cmi.evaluation = new Object();
151
            cmi.evaluation.comments = new Object();
152
 
153
        // Navigation Object
154
        nav = new Object();
155
 
156
        for (element in datamodel[scoid]) {
157
            if (element.match(/\.n\./) == null) {
158
                if (typeof datamodel[scoid][element].defaultvalue != 'undefined') {
159
                    eval(element + ' = datamodel["' + scoid + '"]["' + element + '"].defaultvalue;');
160
                } else {
161
                    eval(element + ' = "";');
162
                }
163
            }
164
        }
165
 
166
        eval(cmiobj[scoid]);
167
 
168
        if (cmi.core.lesson_status == '') {
169
            cmi.core.lesson_status = 'not attempted';
170
        }
171
    }
172
 
173
    //
174
    // API Methods definition
175
    //
176
    var Initialized = false;
177
 
178
    function LMSInitialize (param) {
179
        scoid = scorm_current_node ? scorm_current_node.scoid : scoid;
180
        initdatamodel(scoid);
181
 
182
        errorCode = "0";
183
        if (param == "") {
184
            if (!Initialized) {
185
                Initialized = true;
186
                errorCode = "0";
187
                return "true";
188
            } else {
189
                errorCode = "101";
190
            }
191
        } else {
192
            errorCode = "201";
193
        }
194
        return "false";
195
    }
196
 
197
    function LMSFinish (param) {
198
        errorCode = "0";
199
        if (param == "") {
200
            if (Initialized) {
201
                Initialized = false;
202
                result = StoreData(cmi,true);
203
                if (nav.event != '') {
204
                    if (nav.event == 'continue') {
205
                        setTimeout('mod_scorm_launch_next_sco();',500);
206
                    } else {
207
                        setTimeout('mod_scorm_launch_prev_sco();',500);
208
                    }
209
                } else {
210
                    if (scormauto == 1) {
211
                        setTimeout('mod_scorm_launch_next_sco();',500);
212
                    }
213
                }
214
                // trigger TOC update
215
                var callback = M.mod_scorm.connectPrereqCallback;
216
                YUI().use('io-base', function(Y) {
217
                    Y.on('io:complete', callback.success, Y);
218
                    Y.io(prerequrl);
219
                });
220
                return "true";
221
            } else {
222
                errorCode = "301";
223
            }
224
        } else {
225
            errorCode = "201";
226
        }
227
        return "false";
228
    }
229
 
230
    function LMSGetValue (element) {
231
        errorCode = "0";
232
        if (Initialized) {
233
            if (element != "") {
234
                expression = new RegExp(CMIIndex,'g');
235
                elementmodel = String(element).replace(expression,'.n.');
236
                if (typeof datamodel[scoid][elementmodel] != "undefined") {
237
                    if (datamodel[scoid][elementmodel].mod != 'w') {
238
                            element = String(element).replace(expression, "_$1.");
239
                            elementIndexes = element.split('.');
240
                        subelement = 'cmi';
241
                        i = 1;
242
                        while ((i < elementIndexes.length) && (typeof eval(subelement) != "undefined")) {
243
                            subelement += '.' + elementIndexes[i++];
244
                        }
245
                        if (subelement == element) {
246
                            errorCode = "0";
247
                            return eval(element);
248
                        } else {
249
                            errorCode = "0"; // Need to check if it is the right errorCode
250
                        }
251
                    } else {
252
                        errorCode = datamodel[scoid][elementmodel].readerror;
253
                    }
254
                } else {
255
                    childrenstr = '._children';
256
                    countstr = '._count';
257
                    if (elementmodel.substr(elementmodel.length - childrenstr.length,elementmodel.length) == childrenstr) {
258
                        parentmodel = elementmodel.substr(0,elementmodel.length - childrenstr.length);
259
                        if (typeof datamodel[scoid][parentmodel] != "undefined") {
260
                            errorCode = "202";
261
                        } else {
262
                            errorCode = "201";
263
                        }
264
                    } else if (elementmodel.substr(elementmodel.length - countstr.length,elementmodel.length) == countstr) {
265
                        parentmodel = elementmodel.substr(0,elementmodel.length - countstr.length);
266
                        if (typeof datamodel[scoid][parentmodel] != "undefined") {
267
                            errorCode = "203";
268
                        } else {
269
                            errorCode = "201";
270
                        }
271
                    } else {
272
                        errorCode = "201";
273
                    }
274
                }
275
            } else {
276
                errorCode = "201";
277
            }
278
        } else {
279
            errorCode = "301";
280
        }
281
        return "";
282
    }
283
 
284
    function LMSSetValue (element,value) {
285
        errorCode = "0";
286
        if (Initialized) {
287
            if (element != "") {
288
                expression = new RegExp(CMIIndex,'g');
289
                elementmodel = String(element).replace(expression,'.n.');
290
                if (typeof datamodel[scoid][elementmodel] != "undefined") {
291
                    if (datamodel[scoid][elementmodel].mod != 'r') {
292
                        expression = new RegExp(datamodel[scoid][elementmodel].format);
293
                        value = value + '';
294
                        matches = value.match(expression);
295
                        if (matches != null) {
296
                            //Create dynamic data model element
297
                            if (element != elementmodel) {
298
                                elementIndexes = element.split('.');
299
                                subelement = 'cmi';
300
                                for (i = 1; i < elementIndexes.length - 1; i++) {
301
                                    elementIndex = elementIndexes[i];
302
                                    if (elementIndexes[i + 1].match(/^\d+$/)) {
303
                                        if ((typeof eval(subelement + '.' + elementIndex)) == "undefined") {
304
                                            eval(subelement + '.' + elementIndex + ' = new Object();');
305
                                            eval(subelement + '.' + elementIndex + '._count = 0;');
306
                                        }
307
                                        if (elementIndexes[i + 1] == eval(subelement + '.' + elementIndex + '._count')) {
308
                                            eval(subelement + '.' + elementIndex + '._count++;');
309
                                        }
310
                                        if (elementIndexes[i + 1] > eval(subelement + '.' + elementIndex + '._count')) {
311
                                            errorCode = "201";
312
                                        }
313
                                        subelement = subelement.concat('.' + elementIndex + '_' + elementIndexes[i + 1]);
314
                                        i++;
315
                                    } else {
316
                                        subelement = subelement.concat('.' + elementIndex);
317
                                    }
318
                                    if ((typeof eval(subelement)) == "undefined") {
319
                                        eval(subelement + ' = new Object();');
320
                                        if (subelement.substr(0,14) == 'cmi.objectives') {
321
                                            eval(subelement + '.score = new Object();');
322
                                            eval(subelement + '.score._children = score_children;');
323
                                            eval(subelement + '.score.raw = "";');
324
                                            eval(subelement + '.score.min = "";');
325
                                            eval(subelement + '.score.max = "";');
326
                                        }
327
                                        if (subelement.substr(0,16) == 'cmi.interactions') {
328
                                            eval(subelement + '.objectives = new Object();');
329
                                            eval(subelement + '.objectives._count = 0;');
330
                                            eval(subelement + '.correct_responses = new Object();');
331
                                            eval(subelement + '.correct_responses._count = 0;');
332
                                        }
333
                                    }
334
                                }
335
                                element = subelement.concat('.' + elementIndexes[elementIndexes.length - 1]);
336
                            }
337
                            // Store data.
338
                            if (errorCode == "0") {
339
                                if (autocommit && !(AICCapi.timeout)) {
340
                                    AICCapi.timeout = Y.later(60000, API, 'LMSCommit', [""], false);
341
                                }
342
                                if (typeof datamodel[scoid][elementmodel].range != "undefined") {
343
                                    range = datamodel[scoid][elementmodel].range;
344
                                    ranges = range.split('#');
345
                                    value = value * 1.0;
346
                                    if ((value >= ranges[0]) && (value <= ranges[1])) {
347
                                        eval(element + '="' + value + '";');
348
                                        errorCode = "0";
349
                                        return "true";
350
                                    } else {
351
                                        errorCode = datamodel[scoid][elementmodel].writeerror;
352
                                    }
353
                                } else {
354
                                    if (element == 'cmi.comments') {
355
                                        eval(element + '+="' + value + '";');
356
                                    } else {
357
                                        eval(element + '="' + value + '";');
358
                                    }
359
                                    errorCode = "0";
360
                                    return "true";
361
                                }
362
                            }
363
                        } else {
364
                            errorCode = datamodel[scoid][elementmodel].writeerror;
365
                        }
366
                    } else {
367
                        errorCode = datamodel[scoid][elementmodel].writeerror;
368
                    }
369
                } else {
370
                    errorCode = "201"
371
                }
372
            } else {
373
                errorCode = "201";
374
            }
375
        } else {
376
            errorCode = "301";
377
        }
378
        return "false";
379
    }
380
 
381
    function LMSCommit (param) {
382
        if (AICCapi.timeout) {
383
            AICCapi.timeout.cancel();
384
            AICCapi.timeout = null;
385
        }
386
        errorCode = "0";
387
        if (param == "") {
388
            if (Initialized) {
389
                result = StoreData(cmi,false);
390
                return "true";
391
            } else {
392
                errorCode = "301";
393
            }
394
        } else {
395
            errorCode = "201";
396
        }
397
        return "false";
398
    }
399
 
400
    function LMSGetLastError () {
401
        return errorCode;
402
    }
403
 
404
    function LMSGetErrorString (param) {
405
        if (param != "") {
406
            var errorString = new Array();
407
            errorString["0"] = "No error";
408
            errorString["101"] = "General exception";
409
            errorString["201"] = "Invalid argument error";
410
            errorString["202"] = "Element cannot have children";
411
            errorString["203"] = "Element not an array - cannot have count";
412
            errorString["301"] = "Not initialized";
413
            errorString["401"] = "Not implemented error";
414
            errorString["402"] = "Invalid set value, element is a keyword";
415
            errorString["403"] = "Element is read only";
416
            errorString["404"] = "Element is write only";
417
            errorString["405"] = "Incorrect data type";
418
            return errorString[param];
419
        } else {
420
           return "";
421
        }
422
    }
423
 
424
    function LMSGetDiagnostic (param) {
425
        if (param == "") {
426
            param = errorCode;
427
        }
428
        return param;
429
    }
430
 
431
    function AddTime (first, second) {
432
        var sFirst = first.split(":");
433
        var sSecond = second.split(":");
434
        var cFirst = sFirst[2].split(".");
435
        var cSecond = sSecond[2].split(".");
436
        var change = 0;
437
 
438
        FirstCents = 0;  //Cents
439
        if (cFirst.length > 1) {
440
            FirstCents = parseInt(cFirst[1],10);
441
        }
442
        SecondCents = 0;
443
        if (cSecond.length > 1) {
444
            SecondCents = parseInt(cSecond[1],10);
445
        }
446
        var cents = FirstCents + SecondCents;
447
        change = Math.floor(cents / 100);
448
        cents = cents - (change * 100);
449
        if (Math.floor(cents) < 10) {
450
            cents = "0" + cents.toString();
451
        }
452
 
453
        var secs = parseInt(cFirst[0],10) + parseInt(cSecond[0],10) + change;  //Seconds
454
        change = Math.floor(secs / 60);
455
        secs = secs - (change * 60);
456
        if (Math.floor(secs) < 10) {
457
            secs = "0" + secs.toString();
458
        }
459
 
460
        mins = parseInt(sFirst[1],10) + parseInt(sSecond[1],10) + change;   //Minutes
461
        change = Math.floor(mins / 60);
462
        mins = mins - (change * 60);
463
        if (mins < 10) {
464
            mins = "0" + mins.toString();
465
        }
466
 
467
        hours = parseInt(sFirst[0],10) + parseInt(sSecond[0],10) + change;  //Hours
468
        if (hours < 10) {
469
            hours = "0" + hours.toString();
470
        }
471
 
472
        if (cents != '0') {
473
            return hours + ":" + mins + ":" + secs + '.' + cents;
474
        } else {
475
            return hours + ":" + mins + ":" + secs;
476
        }
477
    }
478
 
479
    function TotalTime() {
480
        total_time = AddTime(cmi.core.total_time, cmi.core.session_time);
481
        return '&' + underscore('cmi.core.total_time') + '=' + escape(total_time);
482
    }
483
 
484
    function CollectData(data,parent) {
485
        var datastring = '';
486
        for (property in data) {
487
            if (typeof data[property] == 'object') {
488
                datastring += CollectData(data[property],parent + '.' + property);
489
            } else {
490
                element = parent + '.' + property;
491
                expression = new RegExp(CMIIndex,'g');
492
                elementmodel = String(element).replace(expression,'.n.');
493
                if (typeof datamodel[scoid][elementmodel] != "undefined") {
494
                    if (datamodel[scoid][elementmodel].mod != 'r') {
495
                        elementstring = '&' + underscore(element) + '=' + escape(data[property]);
496
                        if (typeof datamodel[scoid][elementmodel].defaultvalue != "undefined") {
497
                            if (datamodel[scoid][elementmodel].defaultvalue != data[property]) {
498
                                datastring += elementstring;
499
                            }
500
                        } else {
501
                            datastring += elementstring;
502
                        }
503
                    }
504
                }
505
            }
506
        }
507
        return datastring;
508
    }
509
 
510
    function StoreData(data,storetotaltime) {
511
        var datastring = '';
512
        if (storetotaltime) {
513
            if (cmi.core.lesson_mode == 'normal') {
514
                if (cmi.core.credit == 'credit') {
515
                    if (cmi.student_data.mastery_score != '' && cmi.core.score.raw != '') {
516
                        if (cmi.core.score.raw >= cmi.student_data.mastery_score) {
517
                            cmi.core.lesson_status = 'passed';
518
                        } else {
519
                            cmi.core.lesson_status = 'failed';
520
                        }
521
                    }
522
                }
523
            }
524
            if (cmi.core.lesson_mode == 'browse') {
525
                if (datamodel[scoid]['cmi.core.lesson_status'].defaultvalue == '' && cmi.core.lesson_status == 'not attempted') {
526
                    cmi.core.lesson_status = 'browsed';
527
                }
528
            }
529
            datastring = CollectData(data,'cmi');
530
            datastring += TotalTime();
531
        } else {
532
            datastring = CollectData(data,'cmi');
533
        }
534
 
535
        var myRequest = NewHttpReq();
536
        var result = DoRequest(myRequest, datamodelurl, datamodelurlparams + datastring);
537
 
538
        if (result === false) {
539
            return false;
540
        }
541
 
542
        results = String(result).split('\n');
543
        errorCode = results[1];
544
        return results[0];
545
    }
546
 
547
    this.LMSInitialize = LMSInitialize;
548
    this.LMSFinish = LMSFinish;
549
    this.LMSGetValue = LMSGetValue;
550
    this.LMSSetValue = LMSSetValue;
551
    this.LMSCommit = LMSCommit;
552
    this.LMSGetLastError = LMSGetLastError;
553
    this.LMSGetErrorString = LMSGetErrorString;
554
    this.LMSGetDiagnostic = LMSGetDiagnostic;
555
}
556
 
557
M.scorm_api = {};
558
 
559
M.scorm_api.init = function(Y, def, cmiobj, scormauto, cfgwwwroot, scormid, scoid, attempt, viewmode, currentorg, sesskey, cmid, autocommit) {
560
    window.API = new AICCapi(def, cmiobj, scormauto, cfgwwwroot, scormid, scoid, attempt, viewmode, currentorg, sesskey, cmid, autocommit);
561
}