Current File : /home/vacivi36/ava/blocks/timeline/amd/src/view_nav.js
// 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/>.
/**
* Manage the timeline view navigation for the timeline block.
*
* @copyright 2018 Ryan Wyllie <ryan@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
define(
[
'jquery',
'core/custom_interaction_events',
'block_timeline/view',
'core/ajax',
'core/notification',
'core/utils'
],
function(
$,
CustomEvents,
View,
Ajax,
Notification,
Utils
) {
var SELECTORS = {
TIMELINE_DAY_FILTER: '[data-region="day-filter"]',
TIMELINE_DAY_FILTER_OPTION: '[data-from]',
TIMELINE_VIEW_SELECTOR: '[data-region="view-selector"]',
DATA_DAYS_OFFSET: '[data-days-offset]',
DATA_DAYS_LIMIT: '[data-days-limit]',
TIMELINE_SEARCH_INPUT: '[data-action="search"]',
TIMELINE_SEARCH_CLEAR_ICON: '[data-action="clearsearch"]',
NO_COURSES_EMPTY_MESSAGE: '[data-region="no-courses-empty-message"]',
};
/**
* Generic handler to persist user preferences
*
* @param {string} type The name of the attribute you're updating
* @param {string} value The value of the attribute you're updating
*/
var updateUserPreferences = function(type, value) {
var request = {
methodname: 'core_user_update_user_preferences',
args: {
preferences: [
{
type: type,
value: value
}
]
}
};
Ajax.call([request])[0]
.fail(Notification.exception);
};
/**
* Event listener for the day selector ("Next 7 days", "Next 30 days", etc).
*
* @param {object} root The root element for the timeline block
* @param {object} timelineViewRoot The root element for the timeline view
*/
var registerTimelineDaySelector = function(root, timelineViewRoot) {
var timelineDaySelectorContainer = root.find(SELECTORS.TIMELINE_DAY_FILTER);
CustomEvents.define(timelineDaySelectorContainer, [CustomEvents.events.activate]);
timelineDaySelectorContainer.on(
CustomEvents.events.activate,
SELECTORS.TIMELINE_DAY_FILTER_OPTION,
function(e, data) {
// Update the user preference
var filtername = $(e.currentTarget).data('filtername');
var type = 'block_timeline_user_filter_preference';
updateUserPreferences(type, filtername);
var option = $(e.target).closest(SELECTORS.TIMELINE_DAY_FILTER_OPTION);
if (option.attr('aria-current') == 'true') {
// If it's already active then we don't need to do anything.
return;
}
var daysOffset = option.attr('data-from');
var daysLimit = option.attr('data-to');
var elementsWithDaysOffset = root.find(SELECTORS.DATA_DAYS_OFFSET);
elementsWithDaysOffset.attr('data-days-offset', daysOffset);
if (daysLimit != undefined) {
elementsWithDaysOffset.attr('data-days-limit', daysLimit);
} else {
elementsWithDaysOffset.removeAttr('data-days-limit');
}
if (option.attr('data-filtername') === 'overdue') {
elementsWithDaysOffset.attr('data-filter-overdue', true);
} else {
elementsWithDaysOffset.removeAttr('data-filter-overdue');
}
// Reset the views to reinitialise the event lists now that we've
// updated the day limits.
View.reset(timelineViewRoot);
data.originalEvent.preventDefault();
}
);
};
/**
* Event listener for the "sort" button in the timeline navigation that allows for
* changing between the timeline dates and courses views.
*
* On a view change we tell the timeline view module that the view has been shown
* so that it can handle how to display the appropriate view.
*
* @param {object} root The root element for the timeline block
* @param {object} timelineViewRoot The root element for the timeline view
*/
var registerViewSelector = function(root, timelineViewRoot) {
var viewSelector = root.find(SELECTORS.TIMELINE_VIEW_SELECTOR);
// Listen for when the user changes tab so that we can show the first set of courses
// and load their events when they request the sort by courses view for the first time.
viewSelector.on('shown shown.bs.tab', function(e) {
View.shown(timelineViewRoot);
$(e.target).removeClass('active');
});
// Event selector for user_sort
CustomEvents.define(viewSelector, [CustomEvents.events.activate]);
viewSelector.on(CustomEvents.events.activate, "[data-toggle='tab']", function(e) {
var filtername = $(e.currentTarget).data('filtername');
var type = 'block_timeline_user_sort_preference';
updateUserPreferences(type, filtername);
});
};
/**
* Event listener for the "search" input field in the timeline navigation that allows for
* searching the activity name, course name and activity type.
*
* @param {object} root The root element for the timeline block
* @param {object} timelineViewRoot The root element for the timeline view
*/
const registerSearch = (root, timelineViewRoot) => {
const searchInput = root.find(SELECTORS.TIMELINE_SEARCH_INPUT);
const clearSearchIcon = root.find(SELECTORS.TIMELINE_SEARCH_CLEAR_ICON);
searchInput.on('input', Utils.debounce(() => {
if (searchInput.val() !== '') {
activeSearchState(clearSearchIcon, timelineViewRoot);
} else {
clearSearchState(clearSearchIcon, timelineViewRoot);
}
}, 1000));
clearSearchIcon.on('click', () => {
searchInput.val('');
clearSearchState(clearSearchIcon, timelineViewRoot);
searchInput.focus();
});
};
/**
* Show the clear search icon.
*
* @param {object} clearSearchIcon Clear search icon element.
* @param {object} timelineViewRoot The root element for the timeline view
*/
const activeSearchState = (clearSearchIcon, timelineViewRoot) => {
clearSearchIcon.removeClass('d-none');
View.reset(timelineViewRoot);
};
/**
* Hide the clear search icon.
*
* @param {object} clearSearchIcon Clear search icon element.
* @param {object} timelineViewRoot The root element for the timeline view
*/
const clearSearchState = (clearSearchIcon, timelineViewRoot) => {
clearSearchIcon.addClass('d-none');
View.reset(timelineViewRoot);
};
/**
* Initialise the timeline view navigation by adding event listeners to
* the navigation elements.
*
* @param {object} root The root element for the timeline block
* @param {object} timelineViewRoot The root element for the timeline view
*/
var init = function(root, timelineViewRoot) {
root = $(root);
registerViewSelector(root, timelineViewRoot);
// Only need to handle filtering if the user is actively enrolled in a course.
if (!root.find(SELECTORS.NO_COURSES_EMPTY_MESSAGE).length) {
registerTimelineDaySelector(root, timelineViewRoot);
registerSearch(root, timelineViewRoot);
}
};
return {
init: init
};
});
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