464 lines
20 KiB
JavaScript
464 lines
20 KiB
JavaScript
define(["js/views/validation", "codemirror", "underscore", "jquery", "jquery.ui", "js/utils/date_utils",
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"js/models/uploads", "js/views/uploads", "js/views/license", "js/models/license",
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"common/js/components/views/feedback_notification", "jquery.timepicker", "date", "gettext",
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"js/views/learning_info", "js/views/instructor_info", "edx-ui-toolkit/js/utils/string-utils"],
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function(ValidatingView, CodeMirror, _, $, ui, DateUtils, FileUploadModel,
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FileUploadDialog, LicenseView, LicenseModel, NotificationView,
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timepicker, date, gettext, LearningInfoView, InstructorInfoView, StringUtils) {
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var DetailsView = ValidatingView.extend({
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// Model class is CMS.Models.Settings.CourseDetails
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events : {
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"input input" : "updateModel",
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"input textarea" : "updateModel",
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// Leaving change in as fallback for older browsers
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"change input" : "updateModel",
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"change textarea" : "updateModel",
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"change select" : "updateModel",
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'click .remove-course-introduction-video' : "removeVideo",
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'focus #course-overview' : "codeMirrorize",
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'mouseover .timezone' : "updateTime",
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// would love to move to a general superclass, but event hashes don't inherit in backbone :-(
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'focus :input' : "inputFocus",
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'blur :input' : "inputUnfocus",
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'click .action-upload-image': "uploadImage",
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'click .add-course-learning-info': "addLearningFields",
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'click .add-course-instructor-info': "addInstructorFields"
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},
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initialize : function(options) {
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options = options || {};
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// fill in fields
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this.$el.find("#course-language").val(this.model.get('language'));
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this.$el.find("#course-organization").val(this.model.get('org'));
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this.$el.find("#course-number").val(this.model.get('course_id'));
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this.$el.find("#course-name").val(this.model.get('run'));
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this.$el.find('.set-date').datepicker({ 'dateFormat': 'm/d/yy' });
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// Avoid showing broken image on mistyped/nonexistent image
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this.$el.find('img').error(function() {
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$(this).hide();
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});
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this.$el.find('img').load(function() {
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$(this).show();
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});
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this.listenTo(this.model, 'invalid', this.handleValidationError);
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this.listenTo(this.model, 'change', this.showNotificationBar);
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this.selectorToField = _.invert(this.fieldToSelectorMap);
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// handle license separately, to avoid reimplementing view logic
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this.licenseModel = new LicenseModel({"asString": this.model.get('license')});
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this.licenseView = new LicenseView({
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model: this.licenseModel,
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el: this.$("#course-license-selector").get(),
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showPreview: true
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});
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this.listenTo(this.licenseModel, 'change', this.handleLicenseChange);
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if (options.showMinGradeWarning || false) {
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new NotificationView.Warning({
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title: gettext("Course Credit Requirements"),
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message: gettext("The minimum grade for course credit is not set."),
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closeIcon: true
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}).show();
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}
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this.learning_info_view = new LearningInfoView({
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el: $(".course-settings-learning-fields"),
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model: this.model
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});
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this.instructor_info_view = new InstructorInfoView({
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el: $(".course-instructor-details-fields"),
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model: this.model
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});
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},
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render: function() {
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// Clear any image preview timeouts set in this.updateImagePreview
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clearTimeout(this.imageTimer);
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DateUtils.setupDatePicker('start_date', this);
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DateUtils.setupDatePicker('end_date', this);
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DateUtils.setupDatePicker('enrollment_start', this);
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DateUtils.setupDatePicker('enrollment_end', this);
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this.$el.find('#' + this.fieldToSelectorMap['overview']).val(this.model.get('overview'));
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this.codeMirrorize(null, $('#course-overview')[0]);
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if (this.model.get('title') !== '') {
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this.$el.find('#' + this.fieldToSelectorMap.title).val(this.model.get('title'));
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} else {
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var displayName = this.$el.find('#' + this.fieldToSelectorMap.title).attr('data-display-name');
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this.$el.find('#' + this.fieldToSelectorMap.title).val(displayName);
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}
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this.$el.find('#' + this.fieldToSelectorMap.subtitle).val(this.model.get('subtitle'));
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this.$el.find('#' + this.fieldToSelectorMap.duration).val(this.model.get('duration'));
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this.$el.find('#' + this.fieldToSelectorMap.description).val(this.model.get('description'));
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this.$el.find('#' + this.fieldToSelectorMap['short_description']).val(this.model.get('short_description'));
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this.$el.find('.current-course-introduction-video iframe').attr('src', this.model.videosourceSample());
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this.$el.find('#' + this.fieldToSelectorMap['intro_video']).val(this.model.get('intro_video') || '');
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if (this.model.has('intro_video')) {
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this.$el.find('.remove-course-introduction-video').show();
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}
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else this.$el.find('.remove-course-introduction-video').hide();
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this.$el.find('#' + this.fieldToSelectorMap['effort']).val(this.model.get('effort'));
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var courseImageURL = this.model.get('course_image_asset_path');
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this.$el.find('#course-image-url').val(courseImageURL);
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this.$el.find('#course-image').attr('src', courseImageURL);
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var bannerImageURL = this.model.get('banner_image_asset_path');
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this.$el.find('#banner-image-url').val(bannerImageURL);
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this.$el.find('#banner-image').attr('src', bannerImageURL);
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var videoThumbnailImageURL = this.model.get('video_thumbnail_image_asset_path');
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this.$el.find('#video-thumbnail-image-url').val(videoThumbnailImageURL);
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this.$el.find('#video-thumbnail-image').attr('src', videoThumbnailImageURL);
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var pre_requisite_courses = this.model.get('pre_requisite_courses');
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pre_requisite_courses = pre_requisite_courses.length > 0 ? pre_requisite_courses : '';
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this.$el.find('#' + this.fieldToSelectorMap['pre_requisite_courses']).val(pre_requisite_courses);
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if (this.model.get('entrance_exam_enabled') == 'true') {
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this.$('#' + this.fieldToSelectorMap['entrance_exam_enabled']).attr('checked', this.model.get('entrance_exam_enabled'));
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this.$('.div-grade-requirements').show();
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}
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else {
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this.$('#' + this.fieldToSelectorMap['entrance_exam_enabled']).removeAttr('checked');
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this.$('.div-grade-requirements').hide();
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}
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this.$('#' + this.fieldToSelectorMap['entrance_exam_minimum_score_pct']).val(this.model.get('entrance_exam_minimum_score_pct'));
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var selfPacedButton = this.$('#course-pace-self-paced'),
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instructorPacedButton = this.$('#course-pace-instructor-paced'),
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paceToggleTip = this.$('#course-pace-toggle-tip');
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(this.model.get('self_paced') ? selfPacedButton : instructorPacedButton).attr('checked', true);
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if (this.model.canTogglePace()) {
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selfPacedButton.removeAttr('disabled');
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instructorPacedButton.removeAttr('disabled');
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paceToggleTip.text('');
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}
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else {
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selfPacedButton.attr('disabled', true);
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instructorPacedButton.attr('disabled', true);
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paceToggleTip.text(gettext('Course pacing cannot be changed once a course has started.'));
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}
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this.licenseView.render();
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this.learning_info_view.render();
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this.instructor_info_view.render();
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return this;
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},
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fieldToSelectorMap : {
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'language' : 'course-language',
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'start_date' : "course-start",
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'end_date' : 'course-end',
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'enrollment_start' : 'enrollment-start',
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'enrollment_end' : 'enrollment-end',
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'overview' : 'course-overview',
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'title': 'course-title',
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'subtitle': 'course-subtitle',
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'duration': 'course-duration',
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'description': 'course-description',
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'short_description' : 'course-short-description',
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'intro_video' : 'course-introduction-video',
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'effort' : "course-effort",
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'course_image_asset_path': 'course-image-url',
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'banner_image_asset_path': 'banner-image-url',
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'video_thumbnail_image_asset_path': 'video-thumbnail-image-url',
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'pre_requisite_courses': 'pre-requisite-course',
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'entrance_exam_enabled': 'entrance-exam-enabled',
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'entrance_exam_minimum_score_pct': 'entrance-exam-minimum-score-pct',
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'course_settings_learning_fields': 'course-settings-learning-fields',
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'add_course_learning_info': 'add-course-learning-info',
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'add_course_instructor_info': 'add-course-instructor-info',
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'course_learning_info': 'course-learning-info'
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},
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addLearningFields: function() {
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/*
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* Add new course learning fields.
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* */
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var existingInfo = _.clone(this.model.get('learning_info'));
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existingInfo.push('');
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this.model.set('learning_info', existingInfo);
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},
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addInstructorFields: function() {
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/*
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* Add new course instructor fields.
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* */
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var instructors = this.model.get('instructor_info').instructors.slice(0);
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instructors.push({
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name: '',
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title: '',
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organization: '',
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image: '',
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bio: ''
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});
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this.model.set('instructor_info', {instructors: instructors});
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},
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updateTime : function(e) {
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var now = new Date(),
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hours = now.getUTCHours(),
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minutes = now.getUTCMinutes(),
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currentTimeText = StringUtils.interpolate(
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gettext('{hours}:{minutes} (current UTC time)'),
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{
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'hours': hours,
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'minutes': minutes
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}
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);
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$(e.currentTarget).attr('title', currentTimeText);
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},
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updateModel: function(event) {
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var value;
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var index = event.currentTarget.getAttribute('data-index');
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switch (event.currentTarget.id) {
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case 'course-learning-info-' + index:
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value = $(event.currentTarget).val();
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var learningInfo = this.model.get('learning_info');
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learningInfo[index] = value;
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this.showNotificationBar();
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break;
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case 'course-instructor-name-' + index:
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case 'course-instructor-title-' + index:
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case 'course-instructor-organization-' + index:
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case 'course-instructor-bio-' + index:
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value = $(event.currentTarget).val();
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var field = event.currentTarget.getAttribute('data-field'),
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instructors = this.model.get('instructor_info').instructors.slice(0);
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instructors[index][field] = value;
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this.model.set('instructor_info', {instructors: instructors});
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this.showNotificationBar();
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break;
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case 'course-instructor-image-' + index:
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instructors = this.model.get('instructor_info').instructors.slice(0);
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instructors[index].image = $(event.currentTarget).val();
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this.model.set('instructor_info', {instructors: instructors});
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this.showNotificationBar();
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this.updateImagePreview(event.currentTarget, '#course-instructor-image-preview-' + index);
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break;
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case 'course-image-url':
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this.updateImageField(event, 'course_image_name', '#course-image');
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break;
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case 'banner-image-url':
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this.updateImageField(event, 'banner_image_name', '#banner-image');
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break;
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case 'video-thumbnail-image-url':
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this.updateImageField(event, 'video_thumbnail_image_name', '#video-thumbnail-image');
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break;
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case 'entrance-exam-enabled':
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if($(event.currentTarget).is(":checked")){
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this.$('.div-grade-requirements').show();
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}else{
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this.$('.div-grade-requirements').hide();
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}
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this.setField(event);
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break;
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case 'entrance-exam-minimum-score-pct':
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// If the val is an empty string then update model with default value.
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if ($(event.currentTarget).val() === '') {
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this.model.set('entrance_exam_minimum_score_pct', this.model.defaults.entrance_exam_minimum_score_pct);
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}
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else {
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this.setField(event);
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}
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break;
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case 'pre-requisite-course':
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var value = $(event.currentTarget).val();
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value = value == "" ? [] : [value];
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this.model.set('pre_requisite_courses', value);
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break;
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// Don't make the user reload the page to check the Youtube ID.
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// Wait for a second to load the video, avoiding egregious AJAX calls.
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case 'course-introduction-video':
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this.clearValidationErrors();
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var previewsource = this.model.set_videosource($(event.currentTarget).val());
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clearTimeout(this.videoTimer);
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this.videoTimer = setTimeout(_.bind(function() {
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this.$el.find(".current-course-introduction-video iframe").attr("src", previewsource);
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if (this.model.has('intro_video')) {
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this.$el.find('.remove-course-introduction-video').show();
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}
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else {
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this.$el.find('.remove-course-introduction-video').hide();
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}
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}, this), 1000);
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break;
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case 'course-pace-self-paced':
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// Fallthrough to handle both radio buttons
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case 'course-pace-instructor-paced':
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this.model.set('self_paced', JSON.parse(event.currentTarget.value));
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break;
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case 'course-language':
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case 'course-effort':
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case 'course-title':
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case 'course-subtitle':
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case 'course-duration':
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case 'course-description':
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case 'course-short-description':
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this.setField(event);
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break;
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default: // Everything else is handled by datepickers and CodeMirror.
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break;
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}
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},
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updateImageField: function(event, image_field, selector) {
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this.setField(event);
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var url = $(event.currentTarget).val();
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var image_name = _.last(url.split('/'));
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// If image path is entered directly, we need to strip the asset prefix
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image_name = _.last(image_name.split('block@'));
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this.model.set(image_field, image_name);
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this.updateImagePreview(event.currentTarget, selector);
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},
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updateImagePreview: function(imagePathInputElement, previewSelector) {
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// Wait to set the image src until the user stops typing
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clearTimeout(this.imageTimer);
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this.imageTimer = setTimeout(function() {
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$(previewSelector).attr('src', $(imagePathInputElement).val());
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}, 1000);
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},
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removeVideo: function(event) {
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event.preventDefault();
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if (this.model.has('intro_video')) {
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this.model.set_videosource(null);
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this.$el.find(".current-course-introduction-video iframe").attr("src", "");
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this.$el.find('#' + this.fieldToSelectorMap['intro_video']).val("");
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this.$el.find('.remove-course-introduction-video').hide();
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}
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},
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codeMirrors : {},
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codeMirrorize: function (e, forcedTarget) {
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var thisTarget;
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if (forcedTarget) {
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thisTarget = forcedTarget;
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thisTarget.id = $(thisTarget).attr('id');
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} else if (e !== null) {
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thisTarget = e.currentTarget;
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} else
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{
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// e and forcedTarget can be null so don't deference it
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// This is because in cases where we have a marketing site
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// we don't display the codeMirrors for editing the marketing
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// materials, except we do need to show the 'set course image'
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// workflow. So in this case e = forcedTarget = null.
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return;
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}
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if (!this.codeMirrors[thisTarget.id]) {
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var cachethis = this;
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var field = this.selectorToField[thisTarget.id];
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this.codeMirrors[thisTarget.id] = CodeMirror.fromTextArea(thisTarget, {
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mode: "text/html", lineNumbers: true, lineWrapping: true});
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this.codeMirrors[thisTarget.id].on('change', function (mirror) {
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mirror.save();
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cachethis.clearValidationErrors();
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var newVal = mirror.getValue();
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if (cachethis.model.get(field) != newVal) {
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cachethis.setAndValidate(field, newVal);
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}
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});
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}
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},
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revertView: function() {
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// Make sure that the CodeMirror instance has the correct
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// data from its corresponding textarea
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var self = this;
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this.model.fetch({
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success: function() {
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self.render();
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_.each(self.codeMirrors, function(mirror) {
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var ele = mirror.getTextArea();
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var field = self.selectorToField[ele.id];
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mirror.setValue(self.model.get(field));
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});
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self.licenseModel.setFromString(self.model.get("license"), {silent: true});
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self.licenseView.render()
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},
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reset: true,
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silent: true});
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},
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setAndValidate: function(attr, value) {
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// If we call model.set() with {validate: true}, model fields
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// will not be set if validation fails. This puts the UI and
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// the model in an inconsistent state, and causes us to not
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// see the right validation errors the next time validate() is
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// called on the model. So we set *without* validating, then
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// call validate ourselves.
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this.model.set(attr, value);
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this.model.isValid();
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},
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showNotificationBar: function() {
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// We always call showNotificationBar with the same args, just
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// delegate to superclass
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ValidatingView.prototype.showNotificationBar.call(this,
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this.save_message,
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_.bind(this.saveView, this),
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_.bind(this.revertView, this));
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},
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uploadImage: function(event) {
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event.preventDefault();
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var title = "", selector = "", image_key = "", image_path_key = "";
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switch (event.currentTarget.id) {
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case 'upload-course-image':
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title = gettext("Upload your course image.");
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selector = "#course-image";
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image_key = 'course_image_name';
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image_path_key = 'course_image_asset_path';
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break;
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case 'upload-banner-image':
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title = gettext("Upload your banner image.");
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selector = "#banner-image";
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image_key = 'banner_image_name';
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image_path_key = 'banner_image_asset_path';
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break;
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case 'upload-video-thumbnail-image':
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title = gettext("Upload your video thumbnail image.");
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selector = "#video-thumbnail-image";
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image_key = 'video_thumbnail_image_name';
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image_path_key = 'video_thumbnail_image_asset_path';
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break;
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}
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var upload = new FileUploadModel({
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title: title,
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message: gettext("Files must be in JPEG or PNG format."),
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mimeTypes: ['image/jpeg', 'image/png']
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});
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var self = this;
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var modal = new FileUploadDialog({
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model: upload,
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onSuccess: function(response) {
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var options = {};
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options[image_key] = response.asset.display_name;
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options[image_path_key] = response.asset.url;
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self.model.set(options);
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self.render();
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$(selector).attr('src', self.model.get(image_path_key));
|
|
}
|
|
});
|
|
modal.show();
|
|
},
|
|
|
|
handleLicenseChange: function() {
|
|
this.showNotificationBar();
|
|
this.model.set("license", this.licenseModel.toString());
|
|
}
|
|
});
|
|
|
|
return DetailsView;
|
|
|
|
}); // end define()
|