302 lines
8.9 KiB
JavaScript
302 lines
8.9 KiB
JavaScript
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// Click Listeners
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$("input[name='font-select']").change(function(){
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let $choice = $(this).val();
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set_font($choice);
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});
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$("input[name='font-size']").change(function(){
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let $choice = $(this).val();
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set_font_size($choice);
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});
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$("input[name='bg-select']").change(function(){
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let $choice = $(this).val();
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set_bg_colour($choice);
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});
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$("#btn-toggle-navigator").click(function(event){
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if ($quiz_navigator.is(":hidden")) {
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if ($quiz_settings.is(":visible")) {
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toggle_settings = true;
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$quiz_settings.hide();
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}
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$quiz_render.hide();
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$quiz_navigator.show();
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toggle_navigator = false;
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} else {
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$quiz_navigator.hide();
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if (toggle_settings) {
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$quiz_settings.show();
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toggle_settings = false;
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} else {
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$quiz_render.show();
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}
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}
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event.preventDefault();
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});
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$("#btn-toggle-settings").click(function(event){
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if (($quiz_settings).is(":hidden")) {
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if ($quiz_navigator.is(":visible")) {
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toggle_navigator = true;
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$quiz_navigator.hide();
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}
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$quiz_render.hide();
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$quiz_settings.show();
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toggle_settings = false;
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} else {
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$quiz_settings.hide();
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if (toggle_navigator) {
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$quiz_navigator.show();
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toggle_navigator = false;
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} else {
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$quiz_render.show();
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}
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}
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event.preventDefault();
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});
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$(".btn-dummy").click(function(event){
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event.preventDefault();
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});
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$(".q-question-nav").click(function(event){
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check_answered();
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if ($(this).attr("id") == "q-nav-next") {
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if (current_question < questions.length) {
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current_question ++;
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}
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} else if ($(this).attr("id") == "q-nav-prev") {
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if (current_question > 0) {
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current_question --;
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}
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}
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render_question();
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check_flag();
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event.preventDefault();
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});
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$("#q-nav-flag").click(function(event){
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if (question_status[current_question] != 1) {
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question_status[current_question] = 1;
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$(this).removeClass().addClass("btn btn-warning");
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} else {
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question_status[current_question] = 0;
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$(this).removeClass().addClass("btn btn-secondary");
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}
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event.preventDefault();
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});
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$("#btn-start-quiz").click(function(event){
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$(this).hide();
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$(".btn-quiz-return").show();
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$(".quiz-console").show();
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$("#quiz-settings").hide();
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$("#quiz-navigator").hide();
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$(".quiz-start-text").hide();
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$.ajax({
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url: `/api/questions/`,
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type: 'POST',
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data: JSON.stringify({'_id': _id}),
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contentType: "application/json",
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success: function(response) {
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time_limit_data = response.time_limit;
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questions = response.questions;
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total_questions = questions.length;
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window.localStorage.setItem('questions', JSON.stringify(questions));
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render_question();
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check_flag();
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},
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error: function(response) {
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console.log(response);
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}
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});
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event.preventDefault();
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});
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// Functions
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function set_font(value = 'osdefault') {
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let font_styles = ['arial', 'comicsans', 'opendyslexic', 'tahoma', 'verdana']
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for (let i = 0; i < font_styles.length; i ++) {
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if (font_styles[i] != value) {
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$("body").removeClass( `q-f-${font_styles[i]}` );
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};
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};
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if (value != 'osdefault') {
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$("body").addClass(`q-f-${value}`);
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};
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display_settings['font-select'] = value;
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window.localStorage.setItem('display_settings', JSON.stringify(display_settings));
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$('input[name="font-select"][value="' + value + '"]').prop('checked', true);
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}
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function set_font_size(value = '14pt') {
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let font_sizes = ['12pt', '16pt', '18pt']
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for (let i = 0; i < font_sizes.length; i ++) {
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if (font_sizes[i] != value) {
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$("body").removeClass( `q-f-${font_sizes[i]}` );
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};
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};
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if (value != '14pt') {
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$("body").addClass(`q-f-${value}`);
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};
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display_settings['font-size'] = value;
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window.localStorage.setItem('display_settings', JSON.stringify(display_settings));
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$('input[name="font-size"][value="' + value + '"]').prop('checked', true);
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}
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function set_bg_colour(value = 'bg-light') {
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let backgrounds = ['bg-light', 'q-bg-light-1', 'q-bg-light-2', 'alert-primary', 'alert-secondary', 'alert-dark', 'bg-dark']
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for (let i = 0; i < backgrounds.length; i ++) {
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if (backgrounds[i] != value) {
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$("body").removeClass(backgrounds[i]);
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if (backgrounds[i] == 'bg-dark') {
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$("body").removeClass('text-light');
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};
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if (backgrounds[i] == 'alert-primary' || backgrounds[i] == 'alert-secondary' || backgrounds[i] == 'alert-dark') {
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$("body").removeClass('text-dark');
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};
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};
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};
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$("body").addClass(value);
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if (value == 'bg-dark') {
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$("body").addClass('text-light');
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};
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if (value == 'alert-primary' || value == 'alert-secondary' || value == 'alert-dark') {
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$("body").addClass('text-dark');
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};
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display_settings['bg-select'] = value;
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window.localStorage.setItem('display_settings', JSON.stringify(display_settings));
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$('input[name="bg-select"][value="' + value + '"]').prop('checked', true);
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}
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function get_settings_from_storage() {
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let display_settings = window.localStorage.getItem('display_settings')
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if (display_settings != null) {
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return JSON.parse(display_settings);
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};
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return {
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'font-select': 'osdefault',
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'font-size': '14pt',
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'bg-select': 'bg-light'
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}
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}
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function apply_settings(settings) {
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set_font(settings['font-select']);
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set_font_size(settings['font-size']);
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set_bg_colour(settings['bg-select']);
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}
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function render_question() {
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if (current_question == 0) {
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$nav_prev.addClass('disabled');
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}
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if (current_question == questions.length - 1) {
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$nav_next.addClass('disabled');
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}
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if ($nav_prev.hasClass('disabled') && current_question > 0) {
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$nav_prev.removeClass('disabled');
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}
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if ($nav_next.hasClass('disabled') && current_question < questions.length - 1) {
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$nav_next.removeClass('disabled');
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}
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var question = questions[current_question];
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let header_text = question.question_header;
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var block_length = 0;
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if ('block_length' in question) {
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block_length = question['block_length'];
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};
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var block_q_no = 0;
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if ('block_q_no' in question) {
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block_q_no = question['block_q_no'];
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}
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header_text = header_text.replace('<block_remaining>', (block_length - block_q_no).toString());
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$question_header.html(header_text);
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$question_text.html(question.text);
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$question_title.html(`Question ${current_question + 1} of ${ questions.length }.`);
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var options = question.options;
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var options_output = '';
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for (let i = 0; i < options.length; i ++) {
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options_output += `<div class="form-check">
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<input type="radio" class="form-check-input quiz-option" id="q${current_question}-${i}" name="${question.q_no}" value="${options[i]}">
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<label for="q${current_question}-${i}" class="form-check-label">${options[i]}</label>
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</div>`;
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}
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$question_options.html(options_output);
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}
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function check_answered() {
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var question = questions[current_question];
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var name = question.q_no;
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if (!$(`input[name='${name}']:checked`).val() && question_status[current_question] == 0) {
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question_status[current_question] = -1;
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}
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}
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function check_flag() {
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if (!(current_question in question_status)) {
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question_status[current_question] = 0;
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}
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switch (question_status[current_question]) {
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case -1:
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$nav_flag.removeClass().addClass('btn btn-danger');
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break;
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case 1:
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$nav_flag.removeClass().addClass('btn btn-warning');
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break;
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default:
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$nav_flag.removeClass().addClass('btn btn-secondary');
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}
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}
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// Variable Definitions
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const _id = window.localStorage.getItem('_id');
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var current_question = 0;
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var total_questions = 0;
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var question_status = {};
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var answers = {};
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var questions = []
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var time_limit_data = ''
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var display_settings = get_settings_from_storage();
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const $quiz_settings = $("#quiz-settings");
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const $quiz_navigator = $("#quiz-navigator");
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const $quiz_render = $("#quiz-render");
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const $nav_flag = $("#q-nav-flag");
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const $nav_next = $("#q-nav-next");
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const $nav_prev = $("#q-nav-prev");
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var toggle_settings = false;
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var toggle_navigator = false;
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const $question_title = $("#quiz-question-title");
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const $question_header = $("#quiz-question-header");
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const $question_text = $("#quiz-question-text");
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const $question_options = $("#quiz-question-options");
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// Execution on Load
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apply_settings(display_settings);
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// TODO Build navigator
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// TODO Navigator Link button behaviour
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// TODO Resume Exam button
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// TODO Load state from storage
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// TODO Answer Registry
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