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Wrapper for JS API interaction, as an npm package
- fix for small bug with exam re-creation not satisfying constraints on the hide_after_due field - update app to hit mock desktop app endpoints
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Matt Hughes
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Nov 30, 2018
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| export const handlerWrapper = (Handler) => { | ||
| let handler = new Handler({}); | ||
|
|
||
| self.addEventListener("message", (message) => { | ||
| switch(message.data.type) { | ||
| case 'config': { | ||
| handler = new Handler(message.data.options); | ||
| break; | ||
| } | ||
| case 'startExamAttempt': { | ||
| if(handler.onStartExamAttempt) { | ||
| handler.onStartExamAttempt().then(() => self.postMessage({type: 'examAttemptStarted'})) | ||
| } | ||
| break; | ||
| } | ||
| case 'endExamAttempt': { | ||
| if(handler.onEndExamAttempt) { | ||
| handler.onEndExamAttempt().then(() => self.postMessage({type: 'examAttemptEnded'})) | ||
| } | ||
| break; | ||
| } | ||
| case 'ping': { | ||
| if(handler.onPing) { | ||
| handler.onPing().then(() => self.postMessage({type: 'echo'})) | ||
| } | ||
| break; | ||
| } | ||
| } | ||
| }); | ||
|
|
||
| } | ||
| export default handlerWrapper; |
95 changes: 95 additions & 0 deletions
95
edx_proctoring/static/proctoring/js/exam_action_handler.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| var edx = edx || {}; | ||
|
|
||
| (function($) { | ||
| 'use strict'; | ||
|
|
||
| var actionToMessageTypesMap = { | ||
| 'submit': { | ||
| promptEventName: 'endExamAttempt', | ||
| responseEventName: 'examAttemptEnded' | ||
| }, | ||
| 'start': { | ||
| promptEventName: 'startExamAttempt', | ||
| responseEventName: 'examAttemptStarted' | ||
| } | ||
| }; | ||
|
|
||
| function workerPromiseForEventNames(eventNames) { | ||
| return function() { | ||
| var proctoringBackendWorker = new Worker(edx.courseware.proctored_exam.configuredWorkerURL); | ||
| return new Promise(function(resolve) { | ||
| var responseHandler = function(e) { | ||
| if (e.data.type === eventNames.responseEventName) { | ||
| proctoringBackendWorker.removeEventListener('message', responseHandler); | ||
| proctoringBackendWorker.terminate(); | ||
| resolve(); | ||
| } | ||
| }; | ||
| proctoringBackendWorker.addEventListener('message', responseHandler); | ||
| proctoringBackendWorker.postMessage({ type: eventNames.promptEventName}); | ||
| }); | ||
| }; | ||
| } | ||
|
|
||
| // Update the state of the attempt | ||
| function updateExamAttemptStatusPromise(actionUrl, action) { | ||
| return function() { | ||
| return Promise.resolve($.ajax({ | ||
| url: actionUrl, | ||
| type: 'PUT', | ||
| data: { | ||
| action: action | ||
| } | ||
| })); | ||
| }; | ||
| } | ||
|
|
||
| function reloadPage() { | ||
| location.reload(); | ||
| } | ||
|
|
||
|
|
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| edx.courseware = edx.courseware || {}; | ||
| edx.courseware.proctored_exam = edx.courseware.proctored_exam || {}; | ||
| edx.courseware.proctored_exam.examStartHandler = function(e) { | ||
| e.preventDefault(); | ||
| e.stopPropagation(); | ||
|
|
||
| var $this = $(this); | ||
| var actionUrl = $this.data('change-state-url'); | ||
| var action = $this.data('action'); | ||
|
|
||
| var shouldUseWorker = window.Worker && edx.courseware.proctored_exam.configuredWorkerURL; | ||
| if(shouldUseWorker) { | ||
| workerPromiseForEventNames(actionToMessageTypesMap[action])() | ||
| .then(updateExamAttemptStatusPromise(actionUrl, action)) | ||
| .then(reloadPage); | ||
| } else { | ||
| updateExamAttemptStatusPromise(actionUrl, action)() | ||
| .then(reloadPage); | ||
| } | ||
| }; | ||
| edx.courseware.proctored_exam.examEndHandler = function() { | ||
|
|
||
| $(window).unbind('beforeunload'); | ||
|
|
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| var $this = $(this); | ||
| var actionUrl = $this.data('change-state-url'); | ||
| var action = $this.data('action'); | ||
|
|
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| var shouldUseWorker = window.Worker && | ||
| edx.courseware.proctored_exam.configuredWorkerURL && | ||
| action === "submit"; | ||
| if(shouldUseWorker) { | ||
|
|
||
| updateExamAttemptStatusPromise(actionUrl, action)() | ||
| .then(workerPromiseForEventNames(actionToMessageTypesMap[action])) | ||
| .then(reloadPage); | ||
| } else { | ||
| updateExamAttemptStatusPromise(actionUrl, action)() | ||
| .then(reloadPage); | ||
| } | ||
| } | ||
|
|
||
|
|
||
| }).call(this, $); |
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