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// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Controls all of the behaviour and interaction with a tool type card. These are
* listed on the LTI tool type management page.
*
* See template: mod_lti/tool_proxy_card
*
* @module mod_lti/tool_proxy_card_controller
* @class tool_card_controller
* @package mod_lti
* @copyright 2016 John Okely <john@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @since 3.1
*/
define(['jquery', 'core/ajax', 'core/notification', 'core/templates', 'mod_lti/tool_proxy', 'mod_lti/events', 'mod_lti/keys',
'core/str'],
function($, ajax, notification, templates, toolProxy, ltiEvents, KEYS, str) {
var SELECTORS = {
DELETE_BUTTON: '.delete',
CAPABILITIES_CONTAINER: '.capabilities-container',
ACTIVATE_BUTTON: '.tool-card-footer a.activate',
};
// Timeout in seconds.
var ANNOUNCEMENT_TIMEOUT = 2000;
/**
* Return the delete button element.
*
* @method getDeleteButton
* @private
* @param {JQuery} element jQuery object representing the tool card.
* @return {JQuery} jQuery object
*/
var getDeleteButton = function(element) {
return element.find(SELECTORS.DELETE_BUTTON);
};
/**
* Return the activate button for the type.
*
* @method getActivateButton
* @private
* @param {JQuery} element jQuery object representing the tool card.
* @return {JQuery} jQuery object
*/
var getActivateButton = function(element) {
return element.find(SELECTORS.ACTIVATE_BUTTON);
};
/**
* Get the type id.
*
* @method getTypeId
* @private
* @param {JQuery} element jQuery object representing the tool card.
* @return {String} Type ID
*/
var getTypeId = function(element) {
return element.attr('data-proxy-id');
};
/**
* Stop any announcement currently visible on the card.
*
* @method clearAllAnnouncements
* @private
* @param {JQuery} element jQuery object representing the tool card.
*/
var clearAllAnnouncements = function(element) {
element.removeClass('announcement loading success fail capabilities');
};
/**
* Show the loading announcement.
*
* @method startLoading
* @private
* @param {JQuery} element jQuery object representing the tool card.
*/
var startLoading = function(element) {
clearAllAnnouncements(element);
element.addClass('announcement loading');
};
/**
* Hide the loading announcement.
*
* @method stopLoading
* @private
* @param {JQuery} element jQuery object representing the tool card.
*/
var stopLoading = function(element) {
element.removeClass('announcement loading');
};
/**
* Show the success announcement. The announcement is only
* visible for 2 seconds.
*
* @method announceSuccess
* @private
* @param {JQuery} element jQuery object representing the tool card.
* @return {Promise} jQuery Deferred object
*/
var announceSuccess = function(element) {
var promise = $.Deferred();
clearAllAnnouncements(element);
element.addClass('announcement success');
setTimeout(function() {
element.removeClass('announcement success');
promise.resolve();
}, ANNOUNCEMENT_TIMEOUT);
return promise;
};
/**
* Show the failure announcement. The announcement is only
* visible for 2 seconds.
*
* @method announceFailure
* @private
* @param {JQuery} element jQuery object representing the tool card.
* @return {Promise} jQuery Deferred object
*/
var announceFailure = function(element) {
var promise = $.Deferred();
clearAllAnnouncements(element);
element.addClass('announcement fail');
setTimeout(function() {
element.removeClass('announcement fail');
promise.resolve();
}, ANNOUNCEMENT_TIMEOUT);
return promise;
};
/**
* Delete the tool type from the Moodle server. Triggers a success
* or failure announcement depending on the result.
*
* @method deleteType
* @private
* @param {JQuery} element jQuery object representing the tool card.
* @return {Promise} jQuery Deferred object
*/
var deleteType = function(element) {
var promise = $.Deferred();
var typeId = getTypeId(element);
startLoading(element);
if (typeId === "") {
return $.Deferred().resolve();
}
str.get_strings([
{
key: 'delete',
component: 'mod_lti'
},
{
key: 'delete_confirmation',
component: 'mod_lti'
},
{
key: 'delete',
component: 'mod_lti'
},
{
key: 'cancel',
component: 'core'
},
])
.done(function(strs) {
notification.confirm(strs[0], strs[1], strs[2], strs[3], function() {
toolProxy.delete(typeId)
.done(function() {
stopLoading(element);
announceSuccess(element)
.done(function() {
element.remove();
promise.resolve();
})
.fail(notification.exception);
})
.fail(function(error) {
announceFailure(element);
promise.reject(error);
});
}, function() {
stopLoading(element);
promise.resolve();
});
})
.fail(function(error) {
stopLoading(element);
notification.exception(error);
promise.reject(error);
});
return promise;
};
/**
* The user wishes to activate this tool so show them the capabilities that
* they need to agree to or if there are none then set the tool type's state
* to active.
*
* @method activateToolType
* @private
* @param {JQuery} element jQuery object representing the tool card.
*/
var activateToolType = function(element) {
var data = {proxyid: getTypeId(element)};
$(document).trigger(ltiEvents.START_EXTERNAL_REGISTRATION, data);
};
/**
* Sets up the listeners for user interaction on this tool type card.
*
* @method registerEventListeners
* @private
* @param {JQuery} element jQuery object representing the tool card.
*/
var registerEventListeners = function(element) {
var deleteButton = getDeleteButton(element);
deleteButton.click(function(e) {
e.preventDefault();
deleteType(element);
});
deleteButton.keypress(function(e) {
if (!e.metaKey && !e.shiftKey && !e.altKey && !e.ctrlKey) {
if (e.keyCode == KEYS.ENTER || e.keyCode == KEYS.SPACE) {
e.preventDefault();
deleteButton.click();
}
}
});
var activateButton = getActivateButton(element);
activateButton.click(function(e) {
e.preventDefault();
activateToolType(element);
});
activateButton.keypress(function(e) {
if (!e.metaKey && !e.shiftKey && !e.altKey && !e.ctrlKey) {
if (e.keyCode == KEYS.ENTER || e.keyCode == KEYS.SPACE) {
e.preventDefault();
activateButton.click();
}
}
});
};
return /** @alias module:mod_lti/tool_card_controller */ {
/**
* Initialise this module.
*
* @param {JQuery} element jQuery object representing the tool card.
*/
init: function(element) {
registerEventListeners(element);
}
};
});