// 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/>.
/**
* This module handles the in page replying to forum posts.
*
* @module mod_forum/inpage_reply
* @copyright 2019 Peter Dias
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
define([
'jquery',
'core/templates',
'core/notification',
'mod_forum/repository',
'mod_forum/selectors',
'core_form/changechecker',
], function(
$,
Templates,
Notification,
Repository,
Selectors,
FormChangeChecker
) {
var DISPLAYCONSTANTS = {
NESTED_V2: 4,
THREADED: 2,
NESTED: 3,
FLAT_OLDEST_FIRST: 1,
FLAT_NEWEST_FIRST: -1
};
var EVENTS = {
POST_CREATED: 'mod_forum-post-created'
};
/**
* Moodle formats taken from the FORMAT_* constants declared in lib/weblib.php.
* @type {Object}
*/
var CONTENT_FORMATS = {
MOODLE: 0
};
/**
* Show the loading icon for the submit button.
*
* @param {Object} button The submit button element
*/
var showSubmitButtonLoadingIcon = function(button) {
var textContainer = button.find(Selectors.post.inpageSubmitBtnText);
var loadingIconContainer = button.find(Selectors.post.loadingIconContainer);
var width = button.outerWidth();
// Fix the width so that the button size doesn't change when we show the loading icon.
button.css('width', width);
textContainer.addClass('hidden');
loadingIconContainer.removeClass('hidden');
};
/**
* Hide the loading icon for the submit button.
*
* @param {Object} button The submit button element
*/
var hideSubmitButtonLoadingIcon = function(button) {
var textContainer = button.find(Selectors.post.inpageSubmitBtnText);
var loadingIconContainer = button.find(Selectors.post.loadingIconContainer);
// Reset the width back to it's default.
button.css('width', '');
textContainer.removeClass('hidden');
loadingIconContainer.addClass('hidden');
};
/**
* Register the event listeners for the submit button of the in page reply.
*
* @param {Object} root The discussion container element.
*/
var registerEventListeners = function(root) {
root.on('click', Selectors.post.inpageSubmitBtn, function(e) {
e.preventDefault();
var submitButton = $(e.currentTarget);
var allButtons = submitButton.parent().find(Selectors.post.inpageReplyButton);
var form = submitButton.parents(Selectors.post.inpageReplyForm).get(0);
var message = form.elements.post.value.trim();
// For now, we consider the inline reply post written using the FORMAT_MOODLE (because a textarea is displayed).
// In the future, other formats should be supported, letting users to use their preferred editor and format.
var messageformat = CONTENT_FORMATS.MOODLE;
// The message post will be converted from messageformat to FORMAT_HTML.
var topreferredformat = true;
var postid = form.elements.reply.value;
var subject = form.elements.subject.value;
var currentRoot = submitButton.closest(Selectors.post.post);
var isprivatereply = form.elements.privatereply != undefined ? form.elements.privatereply.checked : false;
var modeSelector = root.find(Selectors.post.modeSelect);
var mode = modeSelector.length ? parseInt(modeSelector.get(0).value) : null;
var newid;
if (message.length) {
showSubmitButtonLoadingIcon(submitButton);
allButtons.prop('disabled', true);
Repository.addDiscussionPost(postid, subject, message, messageformat, isprivatereply, topreferredformat)
.then(function(context) {
var message = context.messages.reduce(function(carry, message) {
if (message.type == 'success') {
carry += '<p>' + message.message + '</p>';
}
return carry;
}, '');
Notification.addNotification({
message: message,
type: "success"
});
return context;
})
.then(function(context) {
form.reset();
var post = context.post;
newid = post.id;
switch (mode) {
case DISPLAYCONSTANTS.NESTED_V2:
var capabilities = post.capabilities;
var currentAuthorName = currentRoot.children()
.not(Selectors.post.repliesContainer)
.find(Selectors.post.authorName)
.text();
post.parentauthorname = currentAuthorName;
post.showactionmenu = capabilities.view ||
capabilities.controlreadstatus ||
capabilities.edit ||
capabilities.split ||
capabilities.delete ||
capabilities.export ||
post.urls.viewparent;
return Templates.render('mod_forum/forum_discussion_nested_v2_post_reply', post);
case DISPLAYCONSTANTS.THREADED:
return Templates.render('mod_forum/forum_discussion_threaded_post', post);
case DISPLAYCONSTANTS.NESTED:
return Templates.render('mod_forum/forum_discussion_nested_post', post);
default:
return Templates.render('mod_forum/forum_discussion_post', post);
}
})
.then(function(html, js) {
var repliesnode = currentRoot.find(Selectors.post.repliesContainer).first();
if (mode == DISPLAYCONSTANTS.FLAT_NEWEST_FIRST) {
return Templates.prependNodeContents(repliesnode, html, js);
} else {
return Templates.appendNodeContents(repliesnode, html, js);
}
})
.then(function() {
submitButton.trigger(EVENTS.POST_CREATED, newid);
hideSubmitButtonLoadingIcon(submitButton);
allButtons.prop('disabled', false);
// Tell formchangechecker we submitted the form.
FormChangeChecker.resetFormDirtyState(submitButton[0]);
return currentRoot.find(Selectors.post.inpageReplyContent).hide();
})
.then(function() {
location.href = "#p" + newid;
// Reload the page, say if threshold is being set by user those would get reflected through the templates.
location.reload();
})
.catch(function(error) {
hideSubmitButtonLoadingIcon(submitButton);
allButtons.prop('disabled', false);
return Notification.exception(error);
});
}
});
};
return {
init: function(root) {
registerEventListeners(root);
},
CONTENT_FORMATS: CONTENT_FORMATS,
EVENTS: EVENTS
};
});