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/**
* A managed category.
*
* @namespace M.course.management
* @class Category
* @constructor
* @extends Item
*/
Category = function() {
Category.superclass.constructor.apply(this, arguments);
};
Category.NAME = 'moodle-course-management-category';
Category.CSS_PREFIX = 'management-category';
Category.ATTRS = {
/**
* The category ID relating to this category.
* @attribute categoryid
* @type Number
* @writeOnce
* @default null
*/
categoryid: {
getter: function(value, name) {
if (value === null) {
value = this.get('node').getData('id');
this.set(name, value);
}
return value;
},
value: null,
writeOnce: true
},
/**
* True if this category is the currently selected category.
* @attribute selected
* @type Boolean
* @default null
*/
selected: {
getter: function(value, name) {
if (value === null) {
value = this.get('node').getData(name);
if (value === null) {
value = false;
}
this.set(name, value);
}
return value;
},
value: null
},
/**
* An array of courses belonging to this category.
* @attribute courses
* @type Course[]
* @default Array
*/
courses: {
validator: function(val) {
return Y.Lang.isArray(val);
},
value: []
}
};
Category.prototype = {
/**
* Initialises an instance of a Category.
* @method initializer
*/
initializer: function() {
this.set('itemname', 'category');
},
/**
* Returns the name of the category.
* @method getName
* @return {String}
*/
getName: function() {
return this.get('node').one('a.categoryname').get('innerHTML');
},
/**
* Registers a course as belonging to this category.
* @method registerCourse
* @param {Course} course
*/
registerCourse: function(course) {
var courses = this.get('courses');
courses.push(course);
this.set('courses', courses);
},
/**
* Handles a category related event.
*
* @method handle
* @param {String} action
* @param {EventFacade} e
* @return {Boolean}
*/
handle: function(action, e) {
var catarg = {categoryid: this.get('categoryid')},
selected = this.get('console').get('activecategoryid');
if (selected && selected !== catarg.categoryid) {
catarg.selectedcategory = selected;
}
switch (action) {
case 'moveup':
e.preventDefault();
this.get('console').performAjaxAction('movecategoryup', catarg, this.moveup, this);
break;
case 'movedown':
e.preventDefault();
this.get('console').performAjaxAction('movecategorydown', catarg, this.movedown, this);
break;
case 'show':
e.preventDefault();
this.get('console').performAjaxAction('showcategory', catarg, this.show, this);
break;
case 'hide':
e.preventDefault();
this.get('console').performAjaxAction('hidecategory', catarg, this.hide, this);
break;
case 'expand':
e.preventDefault();
if (this.get('node').getData('expanded') === '0') {
this.get('node').setAttribute('data-expanded', '1').setData('expanded', 'true');
this.get('console').performAjaxAction('getsubcategorieshtml', catarg, this.loadSubcategories, this);
}
this.expand();
break;
case 'collapse':
e.preventDefault();
this.collapse();
break;
case 'select':
var c = this.get('console'),
movecategoryto = c.get('categorylisting').one('#menumovecategoriesto');
// If any category is selected and there are more then one categories.
if (movecategoryto) {
if (c.isCategorySelected(e.currentTarget) &&
c.get('categories').length > 1) {
movecategoryto.removeAttribute('disabled');
} else {
movecategoryto.setAttribute('disabled', true);
}
c.handleBulkSortByaction();
}
break;
default:
Y.log('Invalid AJAX action requested of managed category.', 'warn', 'moodle-course-management');
return false;
}
},
/**
* Expands the category making its sub categories visible.
* @method expand
*/
expand: function() {
var node = this.get('node'),
action = node.one('a[data-action=expand]'),
ul = node.one('ul[role=group]');
node.removeClass('collapsed').setAttribute('aria-expanded', 'true');
action.setAttribute('data-action', 'collapse').setAttrs({
title: M.util.get_string('collapsecategory', 'moodle', this.getName())
});
require(['core/str', 'core/templates', 'core/notification'], function(Str, Templates, Notification) {
Str.get_string('collapse', 'core')
.then(function(string) {
return Templates.renderPix('t/switch_minus', 'core', string);
})
.then(function(html) {
html = Y.Node.create(html).addClass('tree-icon').getDOMNode().outerHTML;
return action.set('innerHTML', html);
}).fail(Notification.exception);
});
if (ul) {
ul.setAttribute('aria-hidden', 'false');
}
this.get('console').performAjaxAction('expandcategory', {categoryid: this.get('categoryid')}, null, this);
},
/**
* Collapses the category making its sub categories hidden.
* @method collapse
*/
collapse: function() {
var node = this.get('node'),
action = node.one('a[data-action=collapse]'),
ul = node.one('ul[role=group]');
node.addClass('collapsed').setAttribute('aria-expanded', 'false');
action.setAttribute('data-action', 'expand').setAttrs({
title: M.util.get_string('expandcategory', 'moodle', this.getName())
});
require(['core/str', 'core/templates', 'core/notification'], function(Str, Templates, Notification) {
Str.get_string('expand', 'core')
.then(function(string) {
return Templates.renderPix('t/switch_plus', 'core', string);
})
.then(function(html) {
html = Y.Node.create(html).addClass('tree-icon').getDOMNode().outerHTML;
return action.set('innerHTML', html);
}).fail(Notification.exception);
});
if (ul) {
ul.setAttribute('aria-hidden', 'true');
}
this.get('console').performAjaxAction('collapsecategory', {categoryid: this.get('categoryid')}, null, this);
},
/**
* Loads sub categories provided by an AJAX request..
*
* @method loadSubcategories
* @protected
* @param {Number} transactionid The transaction ID of the AJAX request (unique)
* @param {Object} response The response from the AJAX request.
* @param {Object} args The arguments given to the request.
* @return {Boolean} Returns true on success - false otherwise.
*/
loadSubcategories: function(transactionid, response, args) {
var outcome = this.checkAjaxResponse(transactionid, response, args),
node = this.get('node'),
managementconsole = this.get('console'),
ul,
actionnode;
if (outcome === false) {
Y.log('AJAX failed to load sub categories for ' + this.get('itemname'), 'warn', 'moodle-course-management');
return false;
}
Y.log('AJAX loaded subcategories for ' + this.get('itemname'), 'info', 'moodle-course-management');
node.append(outcome.html);
managementconsole.initialiseCategories(node);
if (M.core && M.core.actionmenu && M.core.actionmenu.newDOMNode) {
M.core.actionmenu.newDOMNode(node);
}
ul = node.one('ul[role=group]');
actionnode = node.one('a[data-action=collapse]');
if (ul && actionnode) {
actionnode.setAttribute('aria-controls', ul.generateID());
}
return true;
},
/**
* Moves the course to this category.
*
* @method moveCourseTo
* @param {Course} course
*/
moveCourseTo: function(course) {
var self = this;
Y.use('moodle-core-notification-confirm', function() {
var confirm = new M.core.confirm({
title: M.util.get_string('confirm', 'moodle'),
question: M.util.get_string('confirmcoursemove', 'moodle', {
course: course.getName(),
category: self.getName()
}),
yesLabel: M.util.get_string('move', 'moodle'),
noLabel: M.util.get_string('cancel', 'moodle')
});
confirm.on('complete-yes', function() {
confirm.hide();
confirm.destroy();
this.get('console').performAjaxAction('movecourseintocategory', {
categoryid: this.get('categoryid'),
courseid: course.get('courseid')
}, this.completeMoveCourse, this);
}, self);
confirm.show();
});
},
/**
* Completes moving a course to this category.
* @method completeMoveCourse
* @protected
* @param {Number} transactionid The transaction ID of the AJAX request (unique)
* @param {Object} response The response from the AJAX request.
* @param {Object} args The arguments given to the request.
* @return {Boolean}
*/
completeMoveCourse: function(transactionid, response, args) {
var outcome = this.checkAjaxResponse(transactionid, response, args),
managementconsole = this.get('console'),
category,
course,
totals;
if (outcome === false) {
Y.log('AJAX failed to move courses into this category: ' + this.get('itemname'), 'warn', 'moodle-course-management');
return false;
}
course = managementconsole.getCourseById(args.courseid);
if (!course) {
Y.log('Course was moved but the course listing could not be found to reflect this', 'warn', 'moodle-course-management');
return false;
}
Y.log('Moved the course (' + course.getName() + ') into this category (' + this.getName() + ')',
'debug', 'moodle-course-management');
this.highlight();
if (course) {
if (outcome.paginationtotals) {
totals = managementconsole.get('courselisting').one('.listing-pagination-totals');
if (totals) {
totals.set('innerHTML', outcome.paginationtotals);
}
}
if (outcome.totalcatcourses !== 'undefined') {
totals = this.get('node').one('.course-count span');
if (totals) {
totals.set('innerHTML', totals.get('innerHTML').replace(/^\d+/, outcome.totalcatcourses));
}
}
if (typeof outcome.fromcatcoursecount !== 'undefined') {
category = managementconsole.get('activecategoryid');
category = managementconsole.getCategoryById(category);
if (category) {
totals = category.get('node').one('.course-count span');
if (totals) {
totals.set('innerHTML', totals.get('innerHTML').replace(/^\d+/, outcome.fromcatcoursecount));
}
}
}
course.remove();
}
return true;
},
/**
* Makes an item visible.
*
* @method show
* @param {Number} transactionid The transaction ID of the AJAX request (unique)
* @param {Object} response The response from the AJAX request.
* @param {Object} args The arguments given to the request.
* @return {Boolean}
*/
show: function(transactionid, response, args) {
var outcome = this.checkAjaxResponse(transactionid, response, args),
hidebtn;
if (outcome === false) {
Y.log('AJAX request to show ' + this.get('itemname') + ' by outcome.', 'warn', 'moodle-course-management');
return false;
}
this.markVisible();
hidebtn = this.get('node').one('a[data-action=hide]');
if (hidebtn) {
hidebtn.focus();
}
if (outcome.categoryvisibility) {
this.updateChildVisibility(outcome.categoryvisibility);
}
if (outcome.coursevisibility) {
this.updateCourseVisiblity(outcome.coursevisibility);
}
this.updated();
Y.log('Success: category made visible by AJAX.', 'info', 'moodle-course-management');
},
/**
* Hides an item.
*
* @method hide
* @param {Number} transactionid The transaction ID of the AJAX request (unique)
* @param {Object} response The response from the AJAX request.
* @param {Object} args The arguments given to the request.
* @return {Boolean}
*/
hide: function(transactionid, response, args) {
var outcome = this.checkAjaxResponse(transactionid, response, args),
showbtn;
if (outcome === false) {
Y.log('AJAX request to hide ' + this.get('itemname') + ' by outcome.', 'warn', 'moodle-course-management');
return false;
}
this.markHidden();
showbtn = this.get('node').one('a[data-action=show]');
if (showbtn) {
showbtn.focus();
}
if (outcome.categoryvisibility) {
this.updateChildVisibility(outcome.categoryvisibility);
}
if (outcome.coursevisibility) {
this.updateCourseVisiblity(outcome.coursevisibility);
}
this.updated();
Y.log('Success: ' + this.get('itemname') + ' made hidden by AJAX.', 'info', 'moodle-course-management');
},
/**
* Updates the visibility of child courses if required.
* @method updateCourseVisiblity
* @chainable
* @param courses
*/
updateCourseVisiblity: function(courses) {
var managementconsole = this.get('console'),
key,
course;
Y.log('Changing categories course visibility', 'info', 'moodle-course-management');
try {
for (key in courses) {
if (typeof courses[key] === 'object') {
course = managementconsole.getCourseById(courses[key].id);
if (course) {
if (courses[key].visible === "1") {
course.markVisible();
} else {
course.markHidden();
}
}
}
}
} catch (err) {
Y.log('Error trying to update course visibility: ' + err.message, 'warn', 'moodle-course-management');
}
return this;
},
/**
* Updates the visibility of subcategories if required.
* @method updateChildVisibility
* @chainable
* @param categories
*/
updateChildVisibility: function(categories) {
var managementconsole = this.get('console'),
key,
category;
Y.log('Changing categories subcategory visibility', 'info', 'moodle-course-management');
try {
for (key in categories) {
if (typeof categories[key] === 'object') {
category = managementconsole.getCategoryById(categories[key].id);
if (category) {
if (categories[key].visible === "1") {
category.markVisible();
} else {
category.markHidden();
}
}
}
}
} catch (err) {
Y.log('Error trying to update category visibility: ' + err.message, 'warn', 'moodle-course-management');
}
return this;
}
};
Y.extend(Category, Item, Category.prototype);