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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Controls the message popover in the nav bar.
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*
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* @module core_message/message_popover
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* @copyright 2018 Ryan Wyllie <ryan@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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define(
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[
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'jquery',
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'core/custom_interaction_events',
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'core/pubsub',
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'core_message/message_drawer_events'
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],
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function(
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$,
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CustomEvents,
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PubSub,
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MessageDrawerEvents
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) {
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var SELECTORS = {
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COUNT_CONTAINER: '[data-region="count-container"]'
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};
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/**
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* Toggle the message drawer visibility.
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*
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* @param {String} buttonid The button id for the popover.
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*/
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var toggleMessageDrawerVisibility = function(buttonid) {
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PubSub.publish(MessageDrawerEvents.TOGGLE_VISIBILITY, buttonid);
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};
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/**
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* Decrement the unread conversation count in the nav bar if a conversation
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* is read. When there are no unread conversations then hide the counter.
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*
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* @param {Object} button The button element for the popover.
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* @return {Function}
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*/
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var handleDecrementConversationCount = function(button) {
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return function() {
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var countContainer = button.find(SELECTORS.COUNT_CONTAINER);
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var count = parseInt(countContainer.text(), 10);
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if (isNaN(count)) {
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countContainer.addClass('hidden');
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} else if (!count || count < 2) {
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countContainer.addClass('hidden');
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} else {
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count = count - 1;
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countContainer.text(count);
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}
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};
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};
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/**
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* Add events listeners for when the popover icon is clicked and when conversations
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* are read.
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*
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* @param {Object} button The button element for the popover.
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*/
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var registerEventListeners = function(button) {
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CustomEvents.define(button, [CustomEvents.events.activate]);
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button.on(CustomEvents.events.activate, function(e, data) {
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toggleMessageDrawerVisibility(button.attr('id'));
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button.focus();
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data.originalEvent.preventDefault();
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});
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PubSub.subscribe(MessageDrawerEvents.CONVERSATION_READ, handleDecrementConversationCount(button));
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PubSub.subscribe(MessageDrawerEvents.CONTACT_REQUEST_ACCEPTED, handleDecrementConversationCount(button));
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PubSub.subscribe(MessageDrawerEvents.CONTACT_REQUEST_DECLINED, handleDecrementConversationCount(button));
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};
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/**
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* Initialise the message popover.
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*
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* @param {Object} button The button element for the popover.
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*/
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var init = function(button) {
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button = $(button);
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registerEventListeners(button);
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};
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return {
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init: init,
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};
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});
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