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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/>.
/**
* Request actions.
*
* @module tool_dataprivacy/data_registry
* @copyright 2018 David Monllao
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
define(['jquery', 'core/str', 'core/ajax', 'core/notification', 'core/templates', 'core/modal_factory',
'core/modal_events', 'core/fragment', 'tool_dataprivacy/add_purpose', 'tool_dataprivacy/add_category'],
function($, Str, Ajax, Notification, Templates, ModalFactory, ModalEvents, Fragment, AddPurpose, AddCategory) {
var SELECTORS = {
TREE_NODES: '[data-context-tree-node=1]',
FORM_CONTAINER: '#context-form-container',
};
var DataRegistry = function(systemContextId, initContextLevel, initContextId) {
this.systemContextId = systemContextId;
this.currentContextLevel = initContextLevel;
this.currentContextId = initContextId;
this.init();
};
/**
* @var {int} systemContextId
* @private
*/
DataRegistry.prototype.systemContextId = 0;
/**
* @var {int} currentContextLevel
* @private
*/
DataRegistry.prototype.currentContextLevel = 0;
/**
* @var {int} currentContextId
* @private
*/
DataRegistry.prototype.currentContextId = 0;
/**
* @var {AddPurpose} addpurpose
* @private
*/
DataRegistry.prototype.addpurpose = null;
/**
* @var {AddCategory} addcategory
* @private
*/
DataRegistry.prototype.addcategory = null;
DataRegistry.prototype.init = function() {
// Add purpose and category modals always at system context.
this.addpurpose = AddPurpose.getInstance(this.systemContextId);
this.addcategory = AddCategory.getInstance(this.systemContextId);
var stringKeys = [
{
key: 'changessaved',
component: 'moodle'
}, {
key: 'contextpurposecategorysaved',
component: 'tool_dataprivacy'
}, {
key: 'noblockstoload',
component: 'tool_dataprivacy'
}, {
key: 'noactivitiestoload',
component: 'tool_dataprivacy'
}, {
key: 'nocoursestoload',
component: 'tool_dataprivacy'
}
];
this.strings = Str.get_strings(stringKeys);
this.registerEventListeners();
// Load the default context level form.
if (this.currentContextId) {
this.loadForm('context_form', [this.currentContextId], this.submitContextFormAjax.bind(this));
} else {
this.loadForm('contextlevel_form', [this.currentContextLevel], this.submitContextLevelFormAjax.bind(this));
}
};
DataRegistry.prototype.registerEventListeners = function() {
$(SELECTORS.TREE_NODES).on('click', function(ev) {
ev.preventDefault();
var trigger = $(ev.currentTarget);
// Active node.
$(SELECTORS.TREE_NODES).removeClass('active');
trigger.addClass('active');
var contextLevel = trigger.data('contextlevel');
var contextId = trigger.data('contextid');
if (contextLevel) {
// Context level level.
window.history.pushState({}, null, '?contextlevel=' + contextLevel);
// Remove previous add purpose and category listeners to avoid memory leaks.
this.addpurpose.removeListeners();
this.addcategory.removeListeners();
// Load the context level form.
this.currentContextLevel = contextLevel;
this.loadForm('contextlevel_form', [this.currentContextLevel], this.submitContextLevelFormAjax.bind(this));
} else if (contextId) {
// Context instance level.
window.history.pushState({}, null, '?contextid=' + contextId);
// Remove previous add purpose and category listeners to avoid memory leaks.
this.addpurpose.removeListeners();
this.addcategory.removeListeners();
// Load the context level form.
this.currentContextId = contextId;
this.loadForm('context_form', [this.currentContextId], this.submitContextFormAjax.bind(this));
} else {
// Expandable nodes.
var expandContextId = trigger.data('expandcontextid');
var expandElement = trigger.data('expandelement');
var expanded = trigger.data('expanded');
// Extra checking that there is an expandElement because we remove it after loading 0 branches.
if (expandElement) {
if (!expanded) {
if (trigger.data('loaded') || !expandContextId || !expandElement) {
this.expand(trigger);
} else {
trigger.find('> i').removeClass('fa-plus');
trigger.find('> i').addClass('fa-circle-o-notch fa-spin');
this.loadExtra(trigger, expandContextId, expandElement);
}
} else {
this.collapse(trigger);
}
}
}
}.bind(this));
};
DataRegistry.prototype.removeListeners = function() {
$(SELECTORS.TREE_NODES).off('click');
};
DataRegistry.prototype.loadForm = function(fragmentName, fragmentArgs, formSubmitCallback) {
this.clearForm();
var fragment = Fragment.loadFragment('tool_dataprivacy', fragmentName, this.systemContextId, fragmentArgs);
fragment.done(function(html, js) {
$(SELECTORS.FORM_CONTAINER).html(html);
Templates.runTemplateJS(js);
this.addpurpose.registerEventListeners();
this.addcategory.registerEventListeners();
// We also catch the form submit event and use it to submit the form with ajax.
$(SELECTORS.FORM_CONTAINER).on('submit', 'form', formSubmitCallback);
}.bind(this)).fail(Notification.exception);
};
DataRegistry.prototype.clearForm = function() {
// Remove previous listeners.
$(SELECTORS.FORM_CONTAINER).off('submit', 'form');
};
/**
* This triggers a form submission, so that any mform elements can do final tricks before the form submission is processed.
*
* @method submitForm
* @param {Event} e Form submission event.
* @private
*/
DataRegistry.prototype.submitForm = function(e) {
e.preventDefault();
$(SELECTORS.FORM_CONTAINER).find('form').submit();
};
DataRegistry.prototype.submitContextLevelFormAjax = function(e) {
this.submitFormAjax(e, 'tool_dataprivacy_set_contextlevel_form');
};
DataRegistry.prototype.submitContextFormAjax = function(e) {
this.submitFormAjax(e, 'tool_dataprivacy_set_context_form');
};
DataRegistry.prototype.submitFormAjax = function(e, saveMethodName) {
// We don't want to do a real form submission.
e.preventDefault();
// Convert all the form elements values to a serialised string.
var formData = $(SELECTORS.FORM_CONTAINER).find('form').serialize();
return this.strings.then(function(strings) {
Ajax.call([{
methodname: saveMethodName,
args: {jsonformdata: JSON.stringify(formData)},
done: function() {
Notification.alert(strings[0], strings[1]);
},
fail: Notification.exception
}]);
return;
}).catch(Notification.exception);
};
DataRegistry.prototype.loadExtra = function(parentNode, expandContextId, expandElement) {
Ajax.call([{
methodname: 'tool_dataprivacy_tree_extra_branches',
args: {
contextid: expandContextId,
element: expandElement,
},
done: function(data) {
if (data.branches.length == 0) {
this.noElements(parentNode, expandElement);
return;
}
Templates.render('tool_dataprivacy/context_tree_branches', data)
.then(function(html) {
parentNode.after(html);
this.removeListeners();
this.registerEventListeners();
this.expand(parentNode);
parentNode.data('loaded', 1);
return;
}.bind(this))
.fail(Notification.exception);
}.bind(this),
fail: Notification.exception
}]);
};
DataRegistry.prototype.noElements = function(node, expandElement) {
node.data('expandcontextid', '');
node.data('expandelement', '');
this.strings.then(function(strings) {
// 2 = blocks, 3 = activities, 4 = courses (although courses is not likely really).
var key = 2;
if (expandElement == 'module') {
key = 3;
} else if (expandElement == 'course') {
key = 4;
}
node.text(strings[key]);
return;
}).fail(Notification.exception);
};
DataRegistry.prototype.collapse = function(node) {
node.data('expanded', 0);
node.siblings('nav').addClass('hidden');
node.find('> i').removeClass('fa-minus');
node.find('> i').addClass('fa-plus');
};
DataRegistry.prototype.expand = function(node) {
node.data('expanded', 1);
node.siblings('nav').removeClass('hidden');
node.find('> i').removeClass('fa-plus');
// Also remove the spinning one if data was just loaded.
node.find('> i').removeClass('fa-circle-o-notch fa-spin');
node.find('> i').addClass('fa-minus');
};
return /** @alias module:tool_dataprivacy/data_registry */ {
/**
* Initialise the page.
*
* @param {Number} systemContextId
* @param {Number} initContextLevel
* @param {Number} initContextId
* @return {DataRegistry}
*/
init: function(systemContextId, initContextLevel, initContextId) {
return new DataRegistry(systemContextId, initContextLevel, initContextId);
}
};
}
);
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