Files
rts/js/main.js
T
2020-04-28 14:34:36 +01:00

1580 lines
45 KiB
JavaScript

/* global Dexie, cornerstone, cornerstoneTools, cornerstoneBase64ImageLoader, cornerstoneWebImageLoader, cornerstoneWADOImageLoader */
import * as helper from "./helpers.js";
import * as viewer from "./viewer.js";
// cid = null;
window.cid = 1234;
window.eid = 5678;
window.exam_mode = false;
window.packet_list = [];
window.questions = null;
window.question_order = [];
window.number_of_questions = null;
window.question_type = null;
window.loaded_question = null;
window.review = false;
window.allow_self_marking = true;
//window.dfile = null;
retrievePacketList();
/**
* Retrieves a list of available packets via JSON ajax requests
* Will initially try /packets/ (for example if index.php generates the list)
* and then fallback to packets.json
*/
function retrievePacketList() {
$.getJSON("packets/", function (data) {
loadPacketList(data);
})
.done(function () {})
.fail(function () {
$.getJSON("packets/packets.json", function (data) {
loadPacketList(data);
}).fail(function () {
console.log("No packet list available");
showLoginDialog();
});
})
.always(function () {});
// setUpPacket(questions);
}
/**
* Generate a list of the packets that are available to be loaded
*
* @param {JSON} data - json containing available packets
*/
function loadPacketList(data) {
window.packet_list = data.packets;
window.packet_list.forEach(function (packet) {
$("#packet-list").append(
$("<div class='packet-button'>" + packet + "</div>").click(function () {
loadPacketFromAjax("packets/" + packet);
})
);
});
$("#options-panel").show();
}
/**
* Loads the requisite packet into the quiz system
* @param {string} path - relative path to the packet json file
*/
function loadPacketFromAjax(path) {
console.log("loading packet from " + path);
$.getJSON(path, function (data) {
setUpPacket(data);
$("#options-panel").hide();
})
.done(function () {})
.fail(function () {
console.log("Unable to load packet at: " + path);
});
}
/**
* Build the currently loaded quiz
*/
function setUpQuestions() {
if (window.questions == undefined) {
return;
}
// Set an order for the questions
window.question_order = [];
Object.keys(window.questions).forEach(function (e) {
window.question_order.push(e);
// Make sure answers are arrays
if (!Array.isArray(window.questions[e]["answers"])) {
window.questions[e]["answers"] = [window.questions[e]["answers"]];
}
});
console.log("pre", window.question_order);
window.question_order = helper.shuffleArray(window.question_order);
console.log("post", window.question_order);
window.number_of_questions = Object.keys(window.questions).length;
window.review = false;
console.log(window.question_order);
// Horrible way to get type of questions
// We assume they are all of the same type....
if (window.question_type == null) {
window.question_type =
window.questions[Object.keys(window.questions)[0]].type;
}
if (window.exam_mode) {
$("#options-button, #review-overlay-button").hide();
} else {
$("#submit-button").hide();
}
loadQuestion(0, 1, true);
createQuestionListPanel();
}
// Set up cornerstone (the dicom viewer)
cornerstoneBase64ImageLoader.external.cornerstone = cornerstone;
cornerstoneWebImageLoader.external.cornerstone = cornerstone;
// cornerstoneWebImageLoader.configure({
// beforeSend: function(xhr) {
// // Add custom headers here (e.g. auth tokens)
// //xhr.setRequestHeader('x-auth-token', 'my auth token');
// }
// });
cornerstoneWADOImageLoader.external.cornerstone = cornerstone;
// cornerstoneWADOImageLoader.configure({
// beforeSend: function(xhr) {
// // Add custom headers here (e.g. auth tokens)
// //xhr.setRequestHeader('APIKEY', 'my auth token');
// }
// });
cornerstoneTools.init();
// Set up database
const db = new Dexie("answers_database");
db.version(1).stores({
answers: "[cid+eid+qid+qidn], [cid+eid], ans",
flags: "[cid+eid+qid+qidn], [cid+eid]",
user_answers: "qid, ans",
});
/**
* Parse the packet and extract metadata (if it exists)
* Will then call setUpQuestions() to load the packet
* @param {JSON} data
*/
function setUpPacket(data) {
if (data.hasOwnProperty("exam_name")) {
$(".exam-name").text("Exam: " + data.exam_name);
}
if (data.hasOwnProperty("eid")) {
window.eid = data.eid;
}
if (data.hasOwnProperty("type")) {
window.question_type = data.type;
}
if (data.hasOwnProperty("exam_mode")) {
window.exam_mode = data.exam_mode;
}
if (data.hasOwnProperty("questions")) {
window.questions = data.questions;
} else {
window.questions = data;
}
setUpQuestions();
}
/**
* Loads a specific question
* @param {number} n - Question number to load
* @param {number} section - Question section to focus
* @param {boolean} force_reload - Force question to be reloaded if already loaded
*/
function loadQuestion(n, section = 1, force_reload = false) {
const cid = window.cid;
const eid = window.eid;
// Make sure we have an integer
n = parseInt(n);
console.log(n);
const qid = window.question_order[n];
console.log("qid", qid);
const current_question = window.questions[qid];
console.log("N=", n, section, current_question);
if (n == window.loaded_question && force_reload == false) {
// Question already loaded
setFocus(section);
return;
}
window.loaded_question = n;
// Set up question navigation
$(".navigation[value='next']").off();
$(".navigation[value='previous']").off();
if (n == 0) {
$(".navigation[value='previous']").attr("disabled", "disabled");
} else {
$(".navigation[value='previous']")
.removeAttr("disabled")
.click(function () {
loadQuestion(n - 1);
});
}
if (n == window.number_of_questions - 1) {
$(".navigation[value='next']").attr("disabled", "disabled");
} else {
$(".navigation[value='next']")
.removeAttr("disabled")
.click(function () {
loadQuestion(n + 1);
});
}
const display_n = n + 1;
if (current_question.title) {
$(".question .title").get(0).innerHTML =
'<span style="font-weight:700;">' +
display_n +
"</span> " +
current_question.title;
} else {
$(".question .title").get(0).innerHTML =
'<span style="font-weight:700;">' + display_n + "</span>";
}
// Close any open figures
let el = document.getElementById("dicom-image");
if (el != undefined) {
cornerstone.disable(el);
$(".canvas-panel").remove();
}
// Set up thumbnails
const thumbnails = $(".thumbs");
// Why are we checking this?
if (thumbnails) {
thumbnails.empty();
// TODO: figure captions (need to extend base json)
current_question.images.forEach(function createThumbnail(image, id) {
// For thumbnails we only want a single image
if (Array.isArray(image)) {
image = image[0]; // Do we want the middle image?
}
thumbnails.append(
'<div class="figure" id="figure-' +
id +
'"><div class="figcaption">...</div></div>'
);
// const thumbnail = $(".figure .thumbnail").get(id);
// cornerstone.enable(thumbnail)
// based_img = current_question.images[id];
const based_img = image;
// based (image) data url, just load the image directly
if (based_img.startsWith("data:image/")) {
const img = $("<img />", {
src: based_img,
id: "thumb-" + id,
class: "thumbnail",
title: "Click on the thumbnail to view and manipulate the image.",
draggable: "false",
style: "height: 100px;",
});
$("#figure-" + id).append(img);
// otherwise try to load it as a dicom
} else {
// convert the data url to a file
helper
.urltoFile(based_img, "dicom", "application/dicom")
.then(function (dfile) {
// load the file using cornerstoneWADO file loader
const imageId = cornerstoneWADOImageLoader.wadouri.fileManager.add(
dfile
);
cornerstone.loadAndCacheImage(imageId).then(function (image) {
const img = $("<div></div>").get(0);
img.id = "thumb-" + id;
img.class = "thumbnail";
img.title =
"Click on the thumbnail to view and manipulate the image.";
img.draggable = "false";
img.style = "height: 100px; width: 100px";
$("#figure-" + id).append(img);
const element = document.getElementById("thumb-" + id);
cornerstone.enable(element);
cornerstone.displayImage(element, image);
cornerstone.resize(element);
}); // .catch( function(error) {
});
}
});
}
$(".thumbs .figure").each(function handleThumbnailClicks(id, thumbnail) {
thumbnail.onclick = function (event) {
view(event, this);
};
});
/**
* View cornstone image
* @param {*} t
* @param {*} source
*/
function view(t, source) {
/**
* Load image
* @param {*} images - list of images
*/
async function load(images) {
const imageIds = [];
for (let i = 0; i < images.length; i++) {
const data_url = images[i];
// check stack type
if (data_url.startsWith("data:image")) {
const imageId = "base64://" + data_url.split(",")[1];
imageIds.push(imageId);
} else if (data_url.startsWith("data:application/dicom")) {
// stack = stack.split(";")[1];
const dfile = await helper.urltoFile(
data_url,
"dicom",
"application/dicom"
);
const imageId = cornerstoneWADOImageLoader.wadouri.fileManager.add(
dfile
);
imageIds.push(imageId);
// cornerstone.loadImage(imageId).then(function(image) {
// tempFunction(image);
// });
}
}
const stack = {
currentImageIdIndex: 0,
imageIds,
};
cornerstone.loadAndCacheImage(imageIds[0]).then(function (image) {
viewer.loadMainImage(image, stack);
});
}
if (current_question) {
// Check if the figure is already loaded (or if another one is)
const open_figure = $("#dicom-image").data("figure");
const figure_to_load = source.id;
if (open_figure != undefined) {
// No full size figure / dicom loaded yet
if (figure_to_load == open_figure) {
return;
} else {
el = document.getElementById("dicom-image");
if (el != undefined) {
cornerstone.disable(el);
$(".canvas-panel").remove();
}
}
}
$(".figure-open").removeClass("figure-open").addClass("figure");
source.className = "figure-open";
$(".question").append(
'<div class= "canvas-panel"><div id="dicom-image" data-figure="' +
figure_to_load +
'"></div></div>'
);
let images = current_question.images[figure_to_load.split("-")[1]];
// images = current_question.images
// Make sure we have an array
if (!Array.isArray(images)) {
images = [images];
}
load(images);
}
}
// Answer setup
const ap = $(".answer-panel");
ap.empty();
switch (current_question.type) {
case "rapid": {
ap.append(
'<div class="answer-item"><div class="answer-label-outer"><p class="answer-label-inner"><span class="answer-label-number">' +
display_n +
'.1</span><span style="flex:1">Case normal/abnormal</span><button class="flag" data-qid="' +
n +
'" data-qidn=1 style="margin-right:0">⚐</button></p></div><select class="rapid-option-answer" id="rapid-option" data-answer-section-qidn=1><option selected="selected" disabled="disabled" id="rapid-option-not-answered">--- Not Answered ---</option><option>Abnormal</option><option>Normal</option></select></div>'
);
ap.append(
'<div class="answer-item" id="rapid-text" style="display: none;"><div class="answer-label-outer"><p class="answer-label-inner"><span class="answer-label-number">' +
display_n +
'.2</span><span style="flex:1">Reason</span><button class="flag" data-qid="' +
n +
'" data-qidn=2 style="margin-right:0">⚐</button></p></div><textarea class="long-answer" name="Reason" data-answer-section-qidn=2 style="overflow: hidden scroll; overflow-wrap: break-word;"></textarea></div>'
);
// Handle changing display of optional answer fields and saving of data
$("#rapid-option").change(function (evt) {
if (evt.target.value == "Abnormal") {
$("#rapid-text").css("display", "block");
} else {
$("#rapid-text").css("display", "none");
}
db.answers.put({
cid: cid,
eid: eid,
qid: qid,
qidn: "1",
ans: evt.target.value,
});
updateQuestionListPanel();
});
// Save long answers on textchange
$(".long-answer").change(function (evt) {
// ignore blank text and delete any stored value
if (evt.target.value.length < 1) {
db.answers.delete([cid, eid, qid, "2"]);
$(
"#question-list-item-" + window.question_order.indexOf(qid) + "-2"
).removeClass("question-saved-localdb");
return;
}
// db.answers.put({aid: [cid, eid, qidn], ans: evt.target.value});
db.answers.put({
cid: cid,
eid: eid,
qid: qid,
qidn: "2",
ans: evt.target.value,
});
$(
"#question-list-item-" + window.question_order.indexOf(qid) + "-2"
).addClass("question-saved-localdb");
updateQuestionListPanel();
});
// We chain our db requests as we can only check answers once
// they have been loaded (should probably use then or after)
db.answers
.get({ cid: cid, eid: eid, qid: qid, qidn: "1" })
.then(function (answer) {
if (answer != undefined) {
$("#rapid-option option:contains(" + answer.ans + ")").prop(
"selected",
true
);
// For some reason a change event is not fired...
if (answer.ans == "Abnormal") {
$("#rapid-text").css("display", "block");
}
$("#rapid-option-not-answered").remove();
}
})
.catch(function (error) {
console.log("DB", cid, eid, qid);
console.log("error-", error);
})
.then(
db.answers
.get({ cid: cid, eid: eid, qid: qid, qidn: "2" })
.then(function (answer) {
if (answer != undefined) {
console.log(answer);
$(".long-answer").text(answer.ans);
}
markAnswer(qid, current_question);
})
.catch(function (error) {
console.log("error-", error);
})
);
addFlagEvents();
loadFlagsFromDb(qid, "1");
loadFlagsFromDb(qid, "2");
break;
}
case "anatomy": {
ap.append(
'<div class="answer-item" id="anatomy-text"><div class="answer-label-outer"><p class="answer-label-inner"><span class="answer-label-number">' +
display_n +
'.1</span><span style="flex:1">' +
current_question.question +
'</span><button class="flag" data-qid="' +
n +
'" data-qidn=1 style="margin-right:0">⚐</button></p></div><textarea class="long-answer" name="Reason" data-answer-section-qidn=1 style="overflow: hidden scroll; overflow-wrap: break-word;"></textarea></div>'
);
$(".long-answer").change(function (evt) {
// ignore blank text and delete any stored value
if (evt.target.value.length < 1) {
db.answers.delete([cid, eid, qid, "1"]);
$(
"#question-list-item-" + window.question_order.indexOf(qid) + "-1"
).removeClass("question-saved-localdb");
return;
}
// db.answers.put({aid: [cid, eid, qidn], ans: evt.target.value});
db.answers.put({
cid: cid,
eid: eid,
qid: qid,
qidn: "1",
ans: evt.target.value,
});
$(
"#question-list-item-" + window.question_order.indexOf(qid) + "-1"
).addClass("question-saved-localdb");
updateQuestionListPanel();
});
db.answers
.get({ cid: cid, eid: eid, qid: qid, qidn: "1" })
.then(function (answer) {
if (answer != undefined) {
$(".long-answer").text(answer.ans);
}
markAnswer(qid, current_question);
})
.catch(function (error) {
console.log(error);
});
addFlagEvents();
loadFlagsFromDb(qid, "1");
break;
}
case "long": {
ap.append(
'<div class="answer-item"><div class="answer-label-outer"><p class="answer-label-inner"><span class="answer-label-number">' +
display_n +
'.1</span><span style="flex:1">Observations</span><button class="flag" data-qid="' +
n +
'" data-qidn=1 style="margin-right:0">⚐</button></p></div><textarea class="long-answer" data-qidn=1 name="Observations" style="overflow-x: hidden; overflow-wrap: break-word; height: 80px;"></textarea></div>'
);
ap.append(
'<div class="answer-item"><div class="answer-label-outer"><p class="answer-label-inner"><span class="answer-label-number">' +
display_n +
'.2</span><span style="flex:1">Interpretation</span><button class="flag" data-qid="' +
n +
'" data-qidn=2 style="margin-right:0">⚐</button></p></div><textarea class="long-answer" data-qidn=2 name="Interpretation" style="overflow-x: hidden; overflow-wrap: break-word; , trueheight: 80px;"></textarea></div>'
);
ap.append(
'<div class="answer-item"><div class="answer-label-outer"><p class="answer-label-inner"><span class="answer-label-number">' +
display_n +
'.3</span><span style="flex:1">Principle Diagnosis</span><button class="flag" data-qid="' +
n +
'" data-qidn=3 style="margin-right:0">⚐</button></p></div><textarea class="long-answer" data-qidn=3 name="Principle Diagnosis" style="overflow-x: hidden; overflow-wrap: break-word; height: 80px;"></textarea></div>'
);
ap.append(
'<div class="answer-item"><div class="answer-label-outer"><p class="answer-label-inner"><span class="answer-label-number">' +
display_n +
'.4</span><span style="flex:1">Differential Diagnosis</span><button class="flag" data-qid="' +
n +
'" data-qidn=4 style="margin-right:0">⚐</button></p></div><textarea class="long-answer" data-qidn=4 name="Differential Diagnosis" style="overflow-x: hidden; overflow-wrap: break-word; height: 80px;"></textarea></div>'
);
ap.append(
'<div class="answer-item"><div class="answer-label-outer"><p class="answer-label-inner"><span class="answer-label-number">' +
display_n +
'.5</span><span style="flex:1">Management (if appropriate)</span><button class="flag" data-qid="' +
n +
'" data-qidn=5 style="margin-right:0">⚐</button></p></div><textarea class="long-answer" data-qidn=5 name="Management (if appropriate)" style="overflow-x: hidden; overflow-wrap: break-word; height: 80px;"></textarea></div>'
);
// Save long answers on textchange
$(".long-answer").change(function (evt) {
const qidn = evt.target.dataset.qidn.toString();
// ignore blank text and delete any stored value
if (evt.target.value.length < 1) {
db.answers.delete([cid, eid, qid, qidn]);
$(
"#question-list-item-" +
window.question_order.indexOf(qid) +
"-" +
qidn
).removeClass("question-saved-localdb");
return;
}
// db.answers.put({aid: [cid, eid, qidn], ans: evt.target.value});
db.answers.put({
cid: cid,
eid: eid,
qid: qid,
qidn: qidn,
ans: evt.target.value,
});
console.log("SAVE", qid, qidn, evt.target.value);
$(
"#question-list-item-" +
window.question_order.indexOf(qid) +
"-" +
qidn
).addClass("question-saved-localdb");
updateQuestionListPanel();
});
// Loop through the 5 text areas and retrieve from db
// could all be retrieved at once with an addition key index
//
for (let qidn_count = 1; qidn_count < 6; qidn_count++) {
db.answers
.get({ cid: cid, eid: eid, qid: qid, qidn: qidn_count.toString() })
.then(function (answer) {
if (answer != undefined) {
$(".long-answer")
.eq(parseInt(answer.qidn) - 1)
.text(answer.ans);
}
// markAnswer(qid, "anatomy");
})
.catch(function (error) {
console.log(error);
});
}
addFlagEvents();
loadFlagsFromDb(qid, "1");
loadFlagsFromDb(qid, "2");
loadFlagsFromDb(qid, "3");
loadFlagsFromDb(qid, "4");
loadFlagsFromDb(qid, "5");
break;
}
}
updateQuestionListPanel();
setFocus(section);
}
/**
* Sets the focus to the required question answer section
* @param {number} section - section to focus
*/
function setFocus(section) {
// Horrible (but it works)
setTimeout(function () {
// In pratique it selects the end of a textarea but I'm not sure if I can be bothered...
$("*[data-answer-section-qidn=" + section + "]").focus();
}, 200);
}
/**
* Updates the question list panel
* Test with just a global update (may need to do these individually
* if it gets slow...)
*/
function updateQuestionListPanel() {
const cid = window.cid;
const eid = window.eid;
console.log("UP");
// Reset all classes
db.answers
.where({ cid: cid, eid: eid })
.toArray()
.then(function (answers) {
$(".question-list-panel div")
.slice(1)
.attr("class", "question-list-item");
answers.forEach(function (answer, n) {
$(
"#question-list-item-" +
window.question_order.indexOf(answer.qid) +
"-" +
answer.qidn
).addClass("question-saved-localdb");
if (window.question_type == "rapid" && answer.qidn == "1") {
if (answer.ans == "Abnormal") {
$(
"#question-list-item-" +
window.question_order.indexOf(answer.qid) +
"-2"
).css("display", "block");
} else {
$(
"#question-list-item-" +
window.question_order.indexOf(answer.qid) +
"-2"
).css("display", "none");
}
}
});
// $(".long-answer").text(answer.ans);
})
.catch(function (error) {
console.log("error - ", error);
});
db.flags
.where({ cid: cid, eid: eid })
.toArray()
.then(function (answers) {
answers.forEach(function (answer, n) {
$(
"#question-list-item-" +
window.question_order.indexOf(answer.qid) +
"-" +
answer.qidn +
" span"
).css("visibility", "visible");
});
// $(".long-answer").text(answer.ans);
})
.catch(function (error) {
console.log("error - ", error);
});
}
/**
* Builds the QuestionListPanel
*/
function createQuestionListPanel() {
$(".question-list-panel").empty();
$(".question-list-panel").append(
'<div class="review-heading">Questions</div>'
);
/**
* Appends QuestionList item
* @param {number} n - question number
* @param {number} qidn - question section number
* @return {*} el - element that has been created
*/
function appendReviewItem(n, qidn) {
const qn = n - 1;
const el = $(
'<div id="question-list-item-' +
qn +
"-" +
qidn +
'" data-qid=' +
qn +
' data-qidn="' +
qidn +
'" class="question-list-item">' +
n +
"." +
qidn +
'<span class="question-list-flag">⚑</span></div>'
);
$(".question-list-panel").append(el);
// return the new element so it can be hidden if necessary
return el;
}
if (window.question_type == "rapid") {
// Loop through all questions and append list items
for (let n = 1; n < window.number_of_questions + 1; n++) {
appendReviewItem(n, "1");
appendReviewItem(n, "2").hide();
}
} else if (window.question_type == "anatomy") {
for (let n = 1; n < window.number_of_questions + 1; n++) {
appendReviewItem(n, "1");
}
} else if (window.question_type == "long") {
for (let n = 1; n < window.number_of_questions + 1; n++) {
appendReviewItem(n, "1");
appendReviewItem(n, "2");
appendReviewItem(n, "3");
appendReviewItem(n, "4");
appendReviewItem(n, "5");
}
}
$(".question-list-item").click(function (evt) {
loadQuestion($(this).attr("data-qid"), $(this).attr("data-qidn"));
});
}
/**
* Handle key button events
* These are the same as in the RCR pratique implementation
* @param {*} event - KeyEvent
*/
function keydown_handler(event) {
const target_element = event.target.tagName;
// Catch all keypresses unless user is typing
if (target_element == "INPUT" || target_element == "TEXTAREA") {
return;
}
const sel = $(".control-overlay").get(0);
switch (event.code) {
case "KeyP":
sel.selectedIndex = viewer.find_option(sel, "pan");
changeControlSelection();
break;
case "KeyZ":
sel.selectedIndex = viewer.find_option(sel, "zoom");
changeControlSelection();
break;
case "KeyR":
sel.selectedIndex = viewer.find_option(sel, "rotate");
changeControlSelection();
break;
case "KeyS":
sel.selectedIndex = viewer.find_option(sel, "scroll");
changeControlSelection();
break;
case "KeyW":
sel.selectedIndex = viewer.find_option(sel, "window");
changeControlSelection();
break;
case "KeyA":
sel.selectedIndex = viewer.find_option(sel, "abdomen");
changeControlSelection();
break;
case "KeyU":
sel.selectedIndex = viewer.find_option(sel, "pulmonary");
changeControlSelection();
break;
case "KeyB":
sel.selectedIndex = viewer.find_option(sel, "brain");
changeControlSelection();
break;
case "KeyO":
sel.selectedIndex = viewer.find_option(sel, "bone");
changeControlSelection();
break;
case "KeyE":
sel.selectedIndex = viewer.find_option(sel, "reset");
// $("#dicom-image").get(0).scrollIntoView(false);
changeControlSelection();
break;
// Escape and C do the same
case "KeyC":
case "Escape":
sel.selectedIndex = viewer.find_option(sel, "close");
changeControlSelection();
break;
case "Enter":
t.focus();
break;
// TODO: implement arrow stuff
//
case "ArrowUp": {
// Arrow function depends on the currently selected option
switch (sel.options[sel.selectedIndex].value) {
case "pan":
viewer.manualPanDicom(0, -1);
break;
case "zoom":
// _this.current_dicom.current_view.pre_scale_at(1.01, 1.01, _this.current_dicom.cols / 2, _this.current_dicom.rows / 2);
viewer.manualZoomDicom(1);
break;
case "rotate":
viewer.manualRotateDicom(-1);
break;
case "scroll":
viewer.manualScrollDicom(-1);
break;
case "window":
viewer.manualWindowDicom(1, 0);
break;
}
break;
}
case "ArrowDown": {
switch (sel.options[sel.selectedIndex].value) {
case "pan":
viewer.manualPanDicom(0, 1);
break;
case "zoom":
viewer.manualZoomDicom(-1);
break;
case "rotate":
viewer.manualRotateDicom(1);
break;
case "scroll":
viewer.manualScrollDicom(1);
break;
case "window":
viewer.manualWindowDicom(-1, 0);
break;
}
break;
}
case "ArrowLeft": {
switch (sel.options[sel.selectedIndex].value) {
case "pan":
viewer.manualPanDicom(-1, 0);
break;
case "zoom":
viewer.manualZoomDicom(-1);
break;
case "rotate":
viewer.manualRotateDicom(1);
break;
case "scroll":
viewer.manualScrollDicom(1);
break;
case "window":
viewer.manualWindowDicom(0, -1);
break;
}
break;
}
case "ArrowRight": {
switch (sel.options[sel.selectedIndex].value) {
case "pan":
viewer.manualPanDicom(1, 0);
break;
case "zoom":
viewer.manualZoomDicom(1);
break;
case "rotate":
viewer.manualRotateDicom(-1);
break;
case "scroll":
viewer.manualScrollDicom(-1);
break;
case "window":
viewer.manualWindowDicom(0, 1);
break;
}
break;
}
}
event.preventDefault();
}
/**
* Registers the selected dicom tool
*/
function changeControlSelection() {
// We also duplicate the sel that are available
const sel = $(".control-overlay").get(0);
const old = sel.oldSelectedIndex;
sel.oldSelectedIndex = sel.selectedIndex;
console.log(event);
const dicom_element = document.getElementById("dicom-image");
switch (sel.options[sel.selectedIndex].value) {
case "pan": {
cornerstoneTools.setToolActive("Pan", { mouseButtonMask: 1 });
break;
}
case "zoom": {
cornerstoneTools.setToolActive("Zoom", { mouseButtonMask: 1 });
break;
}
case "rotate": {
cornerstoneTools.setToolActive("Rotate", { mouseButtonMask: 1 });
break;
}
case "scroll": {
cornerstoneTools.setToolActive("StackScroll", { mouseButtonMask: 1 });
// _this.left.onstart = _this.scroll_start;
// _this.selected_control = t.selectedIndex;
break;
}
case "window": {
cornerstoneTools.setToolActive("Wwwc", { mouseButtonMask: 1 });
break;
}
case "abdomen": {
const viewport = cornerstone.getViewport(dicom_element);
viewport.voi.windowCenter = 150;
viewport.voi.windowWidth = 500;
cornerstone.setViewport(dicom_element, viewport);
sel.selectedIndex = viewer.find_option(sel, "window");
changeControlSelection();
break;
}
case "pulmonary": {
const viewport = cornerstone.getViewport(dicom_element);
viewport.voi.windowCenter = -500;
viewport.voi.windowWidth = 1500;
cornerstone.setViewport(dicom_element, viewport);
sel.selectedIndex = viewer.find_option(sel, "window");
changeControlSelection();
break;
}
case "brain": {
const viewport = cornerstone.getViewport(dicom_element);
viewport.voi.windowCenter = 50;
viewport.voi.windowWidth = 80;
cornerstone.setViewport(dicom_element, viewport);
sel.selectedIndex = viewer.find_option(sel, "window");
changeControlSelection();
break;
}
case "bone": {
const viewport = cornerstone.getViewport(dicom_element);
viewport.voi.windowCenter = 570;
viewport.voi.windowWidth = 3000;
cornerstone.setViewport(dicom_element, viewport);
sel.selectedIndex = viewer.find_option(sel, "window");
changeControlSelection();
break;
}
case "reset": {
cornerstone.reset(dicom_element);
sel.selectedIndex = old;
sel.oldSelectedIndex = old;
break;
}
case "close": {
// disable fullscreen if required
if ($(".canvas-panel").length == 0) {
viewer.disableFullscreen(dicom_element);
}
if (dicom_element != undefined) {
cornerstone.removeElementData(dicom_element);
cornerstone.disable(dicom_element);
$(".canvas-panel").remove();
$(".figure-open").removeClass("figure-open").addClass("figure");
$(dicom_element).remove();
}
break;
}
}
sel.blur();
if (event) {
event.preventDefault();
}
}
// Register Key Event Listener
window.addEventListener("keydown", keydown_handler);
$("#btn-local-file-load").click(function (evt) {
loadLocalQuestionSet();
});
$("#submit-button").click(function (evt) {
submitAnswers();
});
$("#review-button").click(function (evt) {
$(".question-list-panel").toggle();
});
$("#options-button").click(function (evt) {
$("#options-panel").toggle();
});
$("#review-overlay-button").click(function (evt) {
if (window.review == true) {
reviewQuestions();
} else {
$("#finish-dialog").modal();
}
});
$("#finish-exam").click(function (evt) {
window.review = true;
reviewQuestions();
$.modal.close();
});
$("#finish-cancel").click(function (evt) {
$.modal.close();
});
$("#overlay-close").click(function (evt) {
$("#options-panel").hide();
});
$("#review-overlay-close").click(function (evt) {
$("#review-overlay").hide();
});
/**
* Gets a json representation of answers
* @return {JSON} - answers
*/
function getJsonAnswers() {
const cid = window.cid;
const eid = window.eid;
return db.answers.where({ cid: cid, eid: eid }).toArray();
// .then(function(ans) {
// console.log(ans);
// submitAnswers(ans);
// });
}
/**
* Posts answers to url
* @param {*} ans - json representation of answers
*/
function postAnswers(ans) {
console.log(ans);
// ans = {"test" : 1}
$.post("http://localhost:8000/submit_answers", JSON.stringify(ans)).done(
(data) => {
console.log(data);
}
);
// $.post( "http://localhost:8000/submit_answers", JSON.stringify(ans));
}
/**
* Loads a local question set (from a file)
* This is call in index.html
*/
function loadLocalQuestionSet() {
let input;
let file;
let fr;
if (typeof window.FileReader !== "function") {
alert("The file API isn't supported on this browser yet.");
return;
}
input = document.getElementById("fileinput");
if (!input) {
alert("No fileinput element.");
} else if (!input.files) {
alert(
"This browser doesn't seem to support the `files` property of file inputs."
);
} else if (!input.files[0]) {
alert("Please select a file before clicking 'Load'");
} else {
file = input.files[0];
fr = new FileReader();
fr.onload = receivedText;
fr.readAsText(file);
}
/**
* Reads text from event and loads the packet
* @param {*} e - event
*/
function receivedText(e) {
const lines = e.target.result;
let j = JSON.parse(lines);
setUpPacket(j);
$("#options-panel").hide();
}
}
/**
* Submits answers
*/
function submitAnswers() {
console.log(
getJsonAnswers().then((a) => {
postAnswers(a);
})
);
}
/**
* Displays the review question panel with a summary of marks
*/
function reviewQuestions() {
const cid = window.cid;
const eid = window.eid;
$("#review-overlay").show();
$("#review-answer-list").empty();
loadQuestion(0);
db.answers
.where({ cid: cid, eid: eid })
.toArray()
.then(function (answers) {
let current_answers = {};
answers.forEach(function (arr, n) {
let answer = arr["ans"];
if (answer == undefined) {
answer = "Not answered";
}
current_answers[[arr["qid"], arr["qidn"]]] = answer;
});
let correct_count = 0;
window.question_order.forEach(function (qid, n) {
$("#review-answer-list").append(
"<li id='review-answer-" +
qid +
"'><a href='#' data-qid=" +
n +
">Question " +
(n + 1) +
":</a> <span>Not answered</span></li>"
);
$("#review-answer-list a").click(function (evt) {
loadQuestion(this.dataset.qid);
$("#review-overlay").hide();
});
db.user_answers
.get({ qid: qid })
.then(function (answers) {
let question_answers = window.questions[qid]["answers"];
if (answers != undefined) {
question_answers = question_answers.concat(answers.ans);
}
let section_1_answer = current_answers[[qid, "1"]];
let section_2_answer = current_answers[[qid, "2"]];
if (section_1_answer == undefined) {
section_1_answer = "Not Answered";
}
if (section_2_answer == undefined) {
if (section_1_answer == "Normal") {
section_2_answer = "Normal";
} else {
section_2_answer = "Not Answered";
}
}
let el = $("#review-answer-" + qid + " span");
/**
* Helper function to define how review items are displayed
* Yes it is a bit shit
* @param {*} el - element
* @param {*} c - clans
* @param {*} user_answer -
* @param {*} normal -
* @param {*} question_answers -
*/
function setReviewAnswer(
el,
c,
user_answer,
normal,
question_answers
) {
if (normal) {
el.html(
"<span class='" +
c +
"'>Answer: " +
user_answer +
" (Normal)</span>"
);
} else {
el.html(
"<span class='" +
c +
"'>Answer: " +
user_answer +
" (Abnormal: " +
question_answers.join(", ") +
")</span>"
);
}
}
if (window.question_type == "rapid") {
// First check normal vs abnormal
if (window.questions[qid]["normal"] == true) {
if (section_1_answer == "Normal") {
setReviewAnswer(
el,
"correct",
section_1_answer,
true,
question_answers
);
correct_count++;
} else {
setReviewAnswer(
el,
"incorrect",
section_1_answer,
true,
question_answers
);
}
} else {
if (answerInArray(question_answers, section_2_answer)) {
correct_count++;
setReviewAnswer(
el,
"correct",
section_2_answer,
false,
question_answers
);
} else {
setReviewAnswer(
el,
"incorrect",
section_2_answer,
false,
question_answers
);
}
}
} else if (window.question_type == "anatomy") {
// Anatomy answers are either correct or incorrect
if (answerInArray(question_answers, section_1_answer)) {
correct_count++;
setReviewAnswer(
el,
"correct",
section_1_answer,
false,
question_answers
);
} else {
setReviewAnswer(
el,
"incorrect",
section_1_answer,
false,
question_answers
);
}
}
$("#review-score").text(
"Score: " +
correct_count +
" out of " +
window.question_order.length
);
})
.catch(function (error) {
console.log("error-", error);
});
});
})
.catch(function (error) {
console.log("error - ", error);
});
}
/**
* Marks the loaded question and updates display
* @param {*} qid -
* @param {*} current_question -
*/
function markAnswer(qid, current_question) {
console.log("mark", qid);
const type = current_question.type;
let option = null;
if (window.review == true) {
// Disable all possible answer elements
$("#rapid-option,.long-answer").attr("disabled", "true");
if (type == "rapid") {
option = document.getElementById("rapid-option");
if (current_question.normal == true) {
$(".answer-panel").append(
"<div id='correct-answer-block'>This is normal</div>"
);
if (option.value == "Normal") {
option.classList.add("correct");
} else {
option.classList.add("incorrect");
}
// If answer is normal we have nothing else to add.
addFeedback(current_question);
}
}
$(".answer-panel").append(
"<div id='correct-answer-block'>Correct answer(s):<ul id='answer-list'></ul></div>"
);
let ul = $("#answer-list");
let textarea = $(".long-answer");
textarea.addClass("incorrect");
let user_answer = textarea.val();
db.user_answers
.get({ qid: qid })
.then(function (answers) {
if (answers != undefined) {
answers.ans.forEach(function (answer, n) {
ul.append("<li>" + answer + "</li>");
if (compareString(answer, user_answer)) {
textarea.removeClass("incorrect").addClass("correct");
}
});
}
current_question.answers.forEach(function (answer, n) {
ul.append("<li>" + answer + "</li>");
if (compareString(answer, user_answer)) {
textarea.removeClass("incorrect").addClass("correct");
}
});
if (type == "rapid" && option.value != "Abnormal") {
option.classList.add("incorrect");
} else {
if (
textarea.hasClass("incorrect") == true &&
user_answer.replace(/\s/g, "") != ""
) {
if (window.allow_self_marking) {
$(".answer-panel").append(
$("<button id='mark-correct'>Mark Correct</button>").click(
function () {
markCorrect(qid, user_answer);
}
)
);
}
}
}
})
.catch(function (error) {
console.log("error-", error);
});
addFeedback(current_question);
}
}
function addFeedback(current_question) {
if (
current_question.hasOwnProperty("feedback") &&
current_question.feedback.length > 0
) {
$(".answer-panel").append(
$(
"<div class='feedback'><h4>Feedback</h4>" +
current_question.feedback +
"</div>"
)
);
}
}
function markCorrect(qid, user_answer) {
if (user_answer == "") {
return;
}
db.user_answers
.get({ qid: qid })
.then(function (answers) {
let new_answers = [];
if (answers != undefined) {
new_answers = answers.ans;
}
new_answers.push(user_answer);
db.user_answers.put({ qid: qid, ans: new_answers });
})
.catch(function (error) {
console.log("error-", error);
});
if (window.allow_self_marking) {
$("#mark-correct").remove();
}
let textarea = $(".long-answer").attr("class", "correct");
}
function compareString(a, b) {
return (
a.toLowerCase().replace(/\s/g, "") == b.toLowerCase().replace(/\s/g, "")
);
}
function answerInArray(arr, ans) {
return (
arr
.map((v) => v.toLowerCase().replace(/\s/g, ""))
.includes(ans.toLowerCase().replace(/\s/g, "")) == true
);
}
function addFlagEvents() {
const cid = window.cid;
const eid = window.eid;
// Bind flag change events
$("button.flag").click(function (event) {
const el = $(this);
const nqid = el.attr("data-qid");
const qid = window.question_order[nqid];
const qidn = el.attr("data-qidn");
el.toggleClass("flag flag-selected");
if (el.hasClass("flag")) {
$("#question-list-item-" + nqid + "-" + qidn + " span").css(
"visibility",
"hidden"
);
db.flags.delete([cid, eid, qid, qidn]);
} else {
$("#question-list-item-" + nqid + "-" + qidn + " span").css(
"visibility",
"visible"
);
db.flags.put({ cid: cid, eid: eid, qid: qid, qidn: qidn });
}
updateQuestionListPanel();
});
}
function loadFlagsFromDb(qid, n) {
const cid = window.cid;
const eid = window.eid;
console.log("loadFlagsFromDb", cid, eid, qid, n);
db.flags
.get({ cid: cid, eid: eid, qid: qid, qidn: n })
.then(function (answer) {
if (answer != undefined) {
$("button.flag, button.flag-selected")
.eq(parseInt(answer.qidn) - 1)
.toggleClass("flag flag-selected");
}
})
.catch(function (error) {
console.log(error);
});
}
function showLoginDialog() {
$("#login-dialog").modal();
}
$("#start-exam-button").click(function (evt) {
window.cid = parseInt($("#candidate-number").val());
$.modal.close();
});