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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 the message popover in the nav bar.
*
* @module core_message/message_popover
* @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',
'core/pubsub',
'core_message/message_drawer_events'
],
function(
$,
CustomEvents,
PubSub,
MessageDrawerEvents
) {
var SELECTORS = {
COUNT_CONTAINER: '[data-region="count-container"]'
};
/**
* Toggle the message drawer visibility.
*
* @param {String} button The button id for the popover.
*/
var toggleMessageDrawerVisibility = function(buttonid) {
PubSub.publish(MessageDrawerEvents.TOGGLE_VISIBILITY, buttonid);
};
/**
* Decrement the unread conversation count in the nav bar if a conversation
* is read. When there are no unread conversations then hide the counter.
*
* @param {Object} button The button element for the popover.
* @return {Function}
*/
var handleDecrementConversationCount = function(button) {
return function() {
var countContainer = button.find(SELECTORS.COUNT_CONTAINER);
var count = parseInt(countContainer.text(), 10);
if (isNaN(count)) {
countContainer.addClass('hidden');
} else if (!count || count < 2) {
countContainer.addClass('hidden');
} else {
count = count - 1;
countContainer.text(count);
}
};
};
/**
* Add events listeners for when the popover icon is clicked and when conversations
* are read.
*
* @param {Object} button The button element for the popover.
*/
var registerEventListeners = function(button) {
CustomEvents.define(button, [CustomEvents.events.activate]);
button.on(CustomEvents.events.activate, function(e, data) {
toggleMessageDrawerVisibility(button.attr('id'));
button.focus();
data.originalEvent.preventDefault();
});
PubSub.subscribe(MessageDrawerEvents.CONVERSATION_READ, handleDecrementConversationCount(button));
PubSub.subscribe(MessageDrawerEvents.CONTACT_REQUEST_ACCEPTED, handleDecrementConversationCount(button));
PubSub.subscribe(MessageDrawerEvents.CONTACT_REQUEST_DECLINED, handleDecrementConversationCount(button));
};
/**
* Initialise the message popover.
*
* @param {Object} button The button element for the popover.
*/
var init = function(button) {
button = $(button);
registerEventListeners(button);
};
return {
init: init,
};
});