541 lines
23 KiB
JavaScript
541 lines
23 KiB
JavaScript
var edx = edx || {};
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(function($, _, Backbone, gettext) {
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'use strict';
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edx.ccx = edx.ccx || {};
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edx.ccx.schedule = edx.ccx.schedule || {};
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var self;
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edx.ccx.schedule.reloadPage = function() {
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location.reload();
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};
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edx.ccx.schedule.UnitModel = Backbone.Model.extend({
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defaults: {
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location: '',
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display_name: '',
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start: null,
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due: null,
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category: '',
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hidden: false,
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children: []
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}
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});
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edx.ccx.schedule.Schedule = Backbone.Collection.extend({
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model: edx.ccx.schedule.UnitModel,
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url: 'ccx_schedule'
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});
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edx.ccx.schedule.ScheduleView = Backbone.View.extend({
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initialize: function() {
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_.bindAll(this, 'render');
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this.schedule_collection = new edx.ccx.schedule.Schedule();
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this.schedule = {};
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this.schedule_collection.bind('reset', this.render);
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this.schedule_collection.fetch({reset: true});
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this.chapter_select = $('form#add-unit select[name="chapter"]');
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this.sequential_select = $('form#add-unit select[name="sequential"]');
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this.vertical_select = $('form#add-unit select[name="vertical"]');
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this.dirty = false;
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self = this;
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$('#add-all').on('click', function(event) {
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event.preventDefault();
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self.schedule_apply(self.schedule, self.show);
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self.dirty = true;
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self.schedule_collection.set(self.schedule);
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self.render();
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});
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// By default input date and time fileds are disable.
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self.disableFields($('.ccx_due_date_time_fields'));
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self.disableFields($('.ccx_start_date_time_fields'));
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// Add unit handlers
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this.chapter_select.on('change', function() {
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var chapter_location = self.chapter_select.val();
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self.vertical_select.html('').prop('disabled', true);
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if (chapter_location !== 'none') {
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var chapter = self.find_unit(self.hidden, chapter_location);
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self.sequential_select.html('')
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// xss-lint: disable=javascript-jquery-append, javascript-concat-html
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.append('<option value="all">' + gettext('All subsections') + '</option>')
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.append(self.schedule_options(chapter.children)); // xss-lint: disable=javascript-jquery-append
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self.sequential_select.prop('disabled', false);
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$('#add-unit-button').prop('disabled', false);
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// When a chapter is selected, start date fields are enabled and due date
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// fields are disabled because due dates are not applicable on a chapter.
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self.disableFields($('.ccx_due_date_time_fields'));
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self.enableFields($('.ccx_start_date_time_fields'));
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} else {
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self.sequential_select.html('').prop('disabled', true);
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// When no chapter is selected, all date fields are disabled.
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self.disableFields($('.ccx_due_date_time_fields'));
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self.disableFields($('.ccx_start_date_time_fields'));
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}
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});
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this.sequential_select.on('change', function() {
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var sequential_location = self.sequential_select.val();
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if (sequential_location !== 'all') {
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var chapter = self.chapter_select.val(),
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sequential = self.find_unit(self.hidden, chapter, sequential_location);
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self.vertical_select.html('')
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// xss-lint: disable=javascript-jquery-append, javascript-concat-html
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.append('<option value="all">' + gettext('All units') + '</option>')
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.append(self.schedule_options(sequential.children)); // xss-lint: disable=javascript-jquery-append
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self.vertical_select.prop('disabled', false);
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self.set_datetime('start', sequential.start);
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self.set_datetime('due', sequential.due);
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// When a subsection (aka sequential) is selected,
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// both start and due date fields are enabled.
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self.enableFields($('.ccx_due_date_time_fields'));
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self.enableFields($('.ccx_start_date_time_fields'));
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} else {
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// When "All subsections" is selected, all date fields are disabled.
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self.vertical_select.html('').prop('disabled', true);
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self.disableFields($('.ccx_due_date_time_fields'));
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self.enableFields($('.ccx_start_date_time_fields'));
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}
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});
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this.vertical_select.on('change', function() {
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var vertical_location = self.vertical_select.val();
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if (vertical_location !== 'all') {
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var chapter = self.chapter_select.val(),
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sequential = self.sequential_select.val();
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var vertical = self.find_unit(
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self.hidden, chapter, sequential, vertical_location);
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// When a unit (aka vertical) is selected, all date fields are disabled because units
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// inherit dates from subsection
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self.disableFields($('.ccx_due_date_time_fields'));
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self.disableFields($('.ccx_start_date_time_fields'));
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} else {
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// When "All units" is selected, all date fields are enabled,
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// because units inherit dates from subsections and we
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// are showing dates from the selected subsection.
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self.enableFields($('.ccx_due_date_time_fields'));
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self.enableFields($('.ccx_start_date_time_fields'));
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}
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});
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// Add unit handler
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$('#add-unit-button').on('click', function(event) {
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event.preventDefault();
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// Default value of time is 00:00.
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var start, chapter, sequential, vertical, units, due;
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start = self.get_datetime('start');
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chapter = self.chapter_select.val();
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sequential = self.sequential_select.val();
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vertical = self.vertical_select.val();
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units = self.find_lineage(
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self.schedule,
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chapter,
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sequential === 'all' ? null : sequential,
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vertical === 'all' ? null : vertical
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);
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due = self.get_datetime('due');
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var errorMessage = self.valid_dates(start, due);
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if (_.isUndefined(errorMessage)) {
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units.map(self.show);
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var unit = units[units.length - 1];
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if (!_.isUndefined(unit)) {
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if (!_.isNull(start)) {
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unit.start = start;
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}
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if (!_.isNull(due)) {
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unit.due = due;
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}
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}
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self.schedule_apply([unit], self.show);
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self.schedule_collection.set(self.schedule);
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self.dirty = true;
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self.render();
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} else {
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self.dirty = false;
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$('#ccx_schedule_error_message').text(errorMessage);
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$('#ajax-error').show().focus();
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$('#dirty-schedule').hide();
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}
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});
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// Handle save button
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$('#dirty-schedule #save-changes').on('click', function(event) {
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event.preventDefault();
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self.save();
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});
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}, // end initialization
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render: function() {
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self.schedule = this.schedule_collection.toJSON();
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self.hidden = this.pruned(self.schedule, function(node) {
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return node.hidden || node.category !== 'vertical';
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});
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this.showing = this.pruned(self.schedule, function(node) {
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return !node.hidden;
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});
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// schedule_template defined globally in ccx\schedule.html
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/* globals schedule_template */
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this.$el.html(schedule_template({chapters: this.showing})); // xss-lint: disable=javascript-jquery-html
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$('table.ccx-schedule .sequential,.vertical').hide();
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$('table.ccx-schedule .unit .toggle-collapse').on('click', this.toggle_collapse);
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// Hidden hover fields for empty date fields
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$('table.ccx-schedule .date button').each(function() {
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if ($(this).text().trim() === gettext('Click to change')) {
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// xss-lint: disable=javascript-jquery-html, javascript-concat-html
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$(this).html('Set date <span class="sr"> ' +
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gettext('Click to change') + '</span>'); // xss-lint: disable=javascript-concat-html
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}
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});
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// Handle date edit clicks
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$('table.ccx-schedule .date button').attr('href', '#enter-date-modal')
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.leanModal({closeButton: '.close-modal'});
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$('table.ccx-schedule .due-date button').on('click', this.enterNewDate('due'));
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$('table.ccx-schedule .start-date button').on('click', this.enterNewDate('start'));
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// click handler for expand all
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$('#ccx_expand_all_btn').on('click', self.expandAll);
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// click handler for collapse all
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$('#ccx_collapse_all_btn').on('click', self.collapseAll);
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// Click handler for remove all
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$('table.ccx-schedule button#remove-all').on('click', function(event) {
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event.preventDefault();
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self.schedule_apply(self.schedule, self.hide);
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self.dirty = true;
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self.schedule_collection.set(self.schedule);
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self.render();
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});
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// Remove unit handler
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$('table.ccx-schedule button.remove-unit').on('click', function() {
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var row = $(this).closest('tr'),
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path = row.data('location').split(' '),
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unit = self.find_unit(self.schedule, path[0], path[1], path[2]);
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self.schedule_apply([unit], self.hide);
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self.schedule_collection.set(self.schedule);
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self.dirty = true;
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self.render();
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});
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// Show or hide form
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if (this.hidden.length) {
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// Populate chapters select, depopulate others
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this.chapter_select.html('')
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// xss-lint: disable=javascript-jquery-append, javascript-concat-html
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.append('<option value="none">' + gettext('Select a chapter') + '...</option>')
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.append(self.schedule_options(this.hidden)); // xss-lint: disable=javascript-jquery-append
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this.sequential_select.html('').prop('disabled', true);
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this.vertical_select.html('').prop('disabled', true);
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$('form#add-unit').show();
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$('#all-units-added').hide();
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$('#add-unit-button').prop('disabled', true);
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} else {
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$('form#add-unit').hide();
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$('#all-units-added').show();
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}
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// Show or hide save button
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if (this.dirty) {
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$('#dirty-schedule').show();
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$('html, body').animate(
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{scrollTop: $('#dirty-schedule').offset().top},
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'slow', function() {
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$('#dirty-schedule').focus();
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});
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} else {
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$('#dirty-schedule').hide();
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}
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$('#ajax-error').hide();
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return this;
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}, // end render
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save: function() {
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self.schedule_collection.set(self.schedule);
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var $button = $('#dirty-schedule #save-changes');
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$button.prop('disabled', true).text(gettext('Saving'));
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// save_url defined globally in ccx\schedule.html
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/* globals save_url */
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$.ajax({
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url: save_url,
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type: 'POST',
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contentType: 'application/json',
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data: JSON.stringify(self.schedule),
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success: function(data) {
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self.dirty = false;
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self.render();
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$button.prop('disabled', false).text(gettext('Save changes'));
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// Update textarea with grading policy JSON, since grading policy
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// may have changed.
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$('#grading-policy').text(data.grading_policy);
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},
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error: function(jqXHR) {
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console.log(jqXHR.responseText);
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$('#ajax-error').show().focus();
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$('#dirty-schedule').hide();
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$('form#add-unit select,input,button').prop('disabled', true);
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$button.prop('disabled', false).text(gettext('Save changes'));
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}
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});
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}, // end save
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hide: function(unit) {
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if (unit !== undefined) {
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unit.hidden = true;
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}
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},
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show: function(unit) {
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if (unit !== undefined) {
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unit.hidden = false;
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}
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},
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valid_dates: function(start, due) {
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var errorMessage;
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// Start date is compulsory and due date is optional.
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if (_.isEmpty(start) && !_.isEmpty(due)) {
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errorMessage = gettext('Please enter valid start date and time.');
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} else if (!_.isEmpty(start) && !_.isEmpty(due)) {
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var requirejs = window.require || RequireJS.require;
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var moment = requirejs('moment');
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var parsedDueDate = moment(due, 'YYYY-MM-DD HH:mm');
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var parsedStartDate = moment(start, 'YYYY-MM-DD HH:mm');
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if (parsedDueDate.isBefore(parsedStartDate)) {
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errorMessage = gettext('Due date cannot be before start date.');
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}
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}
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return errorMessage;
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},
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get_datetime: function(which) {
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var date = $('form#add-unit input[name=' + which + '_date]').val();
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var time = $('form#add-unit input[name=' + which + '_time]').val();
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time = _.isEmpty(time) ? '00:00' : time;
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if (date && time) {
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return date + ' ' + time;
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}
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return null;
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},
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set_datetime: function(which, value) {
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var parts = value ? value.split(' ') : ['', ''],
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date = parts[0],
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time = parts[1];
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$('form#add-unit input[name=' + which + '_date]').val(date);
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$('form#add-unit input[name=' + which + '_time]').val(time);
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},
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schedule_options: function(nodes) {
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return nodes.map(function(node) {
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return $('<option>')
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.attr('value', node.location)
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.text(node.display_name)[0];
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});
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},
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schedule_apply: function(nodes, f) {
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nodes.map(function(node) {
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f(node);
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if (node !== undefined && node.children !== undefined) {
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self.schedule_apply(node.children, f);
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}
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});
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},
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pruned: function(tree, filter) {
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return tree.filter(filter)
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.map(function(node) {
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var copy = {};
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$.extend(copy, node);
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if (node.children) {
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copy.children = self.pruned(node.children, filter);
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}
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return copy;
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}).filter(function(node) {
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return node.children === undefined || node.children.length;
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});
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},
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disableFields: function($selector) {
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$selector.find('select,input,button').prop('disabled', true);
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},
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enableFields: function($selector) {
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$selector.find('select,input,button').prop('disabled', false);
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},
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toggle_collapse: function(event) {
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event.preventDefault();
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var row = $(this).closest('tr');
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var children = self.get_children(row);
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if (row.is('.expanded')) {
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$(this).attr('aria-expanded', 'false');
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$(this).find('.fa-caret-down').removeClass('fa-caret-down').addClass('fa-caret-right');
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row.removeClass('expanded').addClass('collapsed');
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children.hide();
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} else {
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$(this).attr('aria-expanded', 'true');
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$(this).find('.fa-caret-right').removeClass('fa-caret-right').addClass('fa-caret-down');
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row.removeClass('collapsed').addClass('expanded');
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var depth = $(row).data('depth');
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var $childNodes = children.filter('.collapsed');
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if ($childNodes.length <= 0) {
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children.show();
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} else {
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// this will expand units.
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$childNodes.each(function() {
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var depthChild = $(this).data('depth');
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if (depth === (depthChild - 1)) {
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$(this).show();
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}
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});
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}
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}
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},
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expandAll: function() {
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$('table.ccx-schedule > tbody > tr').each(function() {
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var $row = $(this);
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if (!$row.is('.expanded')) {
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var children = self.get_children($row);
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$row.find('.ccx_sr_alert').attr('aria-expanded', 'true');
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$row.find('.fa-caret-right').removeClass('fa-caret-right').addClass('fa-caret-down');
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$row.removeClass('collapsed').addClass('expanded');
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children.filter('.collapsed').each(function() {
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children = children.not(self.get_children(this));
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});
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children.show();
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}
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});
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},
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collapseAll: function() {
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$('table.ccx-schedule > tbody > tr').each(function() {
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var $row = $(this);
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if ($row.is('.expanded')) {
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$($row).find('.ccx_sr_alert').attr('aria-expanded', 'false');
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$($row).find('.fa-caret-down').removeClass('fa-caret-down').addClass('fa-caret-right');
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$row.removeClass('expanded').addClass('collapsed');
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}
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});
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$('table.ccx-schedule .sequential,.vertical').hide();
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},
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enterNewDate: function(what) {
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return function() {
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var row = $(this).closest('tr');
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var modal = $('#enter-date-modal')
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.data('what', what)
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.data('location', row.data('location'));
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modal.find('h2').text(
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what === 'due' ? gettext('Enter Due Date and Time') :
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gettext('Enter Start Date and Time')
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);
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modal.focus();
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$(document).on('focusin', function(event) {
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try {
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if (!_.isUndefined(event.target.closest('.modal').id) &&
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event.target.closest('.modal').id !== 'enter-date-modal' &&
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event.target.id !== 'enter-date-modal') {
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event.preventDefault();
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modal.find('.close-modal').focus();
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}
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} catch (err) {
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event.preventDefault();
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modal.find('.close-modal').focus();
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}
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});
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modal.find('.close-modal').click(function() {
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$(document).off('focusin');
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});
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var path = row.data('location').split(' '),
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unit = self.find_unit(self.schedule, path[0], path[1], path[2]),
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parts = unit[what] ? unit[what].split(' ') : ['', ''],
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date = parts[0],
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time = parts[1];
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modal.find('input[name=date]').val(date);
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modal.find('input[name=time]').val(time);
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modal.find('form').off('submit').on('submit', function(event) {
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event.preventDefault();
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var date = $(this).find('input[name=date]').val(),
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time = $(this).find('input[name=time]').val();
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var valid_date = new Date(date);
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if (isNaN(valid_date.valueOf())) {
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alert('Please enter a valid date');
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return;
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}
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var valid_time = /^\d{1,2}:\d{2}?$/;
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if (!time.match(valid_time)) {
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alert('Please enter a valid time');
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return;
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}
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if (what === 'start') {
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unit.start = date + ' ' + time;
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if (unit.category === 'sequential') {
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self.updateChildrenDates(unit, what, unit.start);
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}
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} else {
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unit.due = date + ' ' + time;
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if (unit.category === 'sequential') {
|
|
self.updateChildrenDates(unit, what, unit.due);
|
|
}
|
|
}
|
|
modal.find('.close-modal').click();
|
|
self.dirty = true;
|
|
self.schedule_collection.set(self.schedule);
|
|
self.render();
|
|
});
|
|
};
|
|
},
|
|
|
|
updateChildrenDates: function(sequential, date_type, date) {
|
|
// This code iterates the children (aka verticals) of a sequential.
|
|
// It updates start and due dates to corresponding dates
|
|
// of sequential (parent).
|
|
_.forEach(sequential.children, function(unit) {
|
|
if (date_type === 'start') {
|
|
unit.start = date;
|
|
} else {
|
|
unit.due = date;
|
|
}
|
|
});
|
|
},
|
|
|
|
find_unit: function(tree, chapter, sequential, vertical) {
|
|
var units = self.find_lineage(tree, chapter, sequential, vertical);
|
|
return units[units.length - 1];
|
|
},
|
|
|
|
find_lineage: function(tree, chapter, sequential, vertical) {
|
|
function find_in(seq, location) {
|
|
for (var i = 0; i < seq.length; i++) {
|
|
if (seq[i].location === location) {
|
|
return seq[i];
|
|
}
|
|
}
|
|
}
|
|
var units = [],
|
|
unit = find_in(tree, chapter);
|
|
units[units.length] = unit;
|
|
if (sequential) {
|
|
units[units.length] = unit = find_in(unit.children, sequential);
|
|
if (vertical) {
|
|
units[units.length] = unit = find_in(unit.children, vertical);
|
|
}
|
|
}
|
|
return units;
|
|
},
|
|
get_children: function(row) {
|
|
var depth = $(row).data('depth');
|
|
return $(row).nextUntil(
|
|
$(row).siblings().filter(function() {
|
|
return $(this).data('depth') <= depth;
|
|
})
|
|
);
|
|
}
|
|
});
|
|
}(jQuery, _, Backbone, gettext));
|