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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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* This module handles the creation of a Modal that shows the user's post in context of the entire discussion.
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*
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* @module mod_forum/grades/expandconversation
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* @copyright 2019 Mathew May <mathew.solutions>
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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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import * as ForumSelectors from './grader/selectors';
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import Repository from 'mod_forum/repository';
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import {exception as showException} from "core/notification";
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import Templates from 'core/templates';
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import Modal from 'core/modal_cancel';
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import * as ModalEvents from 'core/modal_events';
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/**
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* Find the Node containing the gradable details from the provided node by searching up the tree.
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*
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* @param {HTMLElement} node
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* @returns {HTMLElement}
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*/
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const findGradableNode = node => node.closest(ForumSelectors.expandConversation);
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/**
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* Show the post in context in a modal.
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*
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* @param {HTMLElement} rootNode The button that has been clicked
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* @param {object} param
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* @param {bool} [param.focusOnClose=null]
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*/
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const showPostInContext = async(rootNode, {
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focusOnClose = null,
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} = {}) => {
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const postId = rootNode.dataset.postid;
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const discussionId = rootNode.dataset.discussionid;
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const discussionName = rootNode.dataset.name;
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const experimentalDisplayMode = rootNode.dataset.experimentalDisplayMode == "1";
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const [
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allPosts,
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modal,
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] = await Promise.all([
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Repository.getDiscussionPosts(parseInt(discussionId)),
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Modal.create({
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title: discussionName,
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large: true,
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removeOnClose: true,
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returnElement: focusOnClose,
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}),
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]);
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const postsById = new Map(allPosts.posts.map(post => {
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post.readonly = true;
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post.hasreplies = false;
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post.replies = [];
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return [post.id, post];
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}));
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let posts = [];
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allPosts.posts.forEach(post => {
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if (post.parentid) {
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const parent = postsById.get(post.parentid);
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if (parent) {
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post.parentauthorname = parent.author.fullname;
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parent.hasreplies = true;
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parent.replies.push(post);
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} else {
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posts.push(post);
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}
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} else {
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posts.push(post);
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}
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});
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modal.getRoot().on(ModalEvents.bodyRendered, () => {
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const relevantPost = modal.getRoot()[0].querySelector(`#p${postId}`);
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if (relevantPost) {
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relevantPost.scrollIntoView({behavior: "smooth"});
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}
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});
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modal.show();
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// Note: We do not use await here because it messes with the Modal transitions.
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const templatePromise = Templates.render('mod_forum/grades/grader/discussion/post_modal', {
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posts,
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experimentaldisplaymode: experimentalDisplayMode
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});
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modal.setBody(templatePromise);
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};
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/**
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* Register event listeners for the expand conversations button.
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*
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* @param {HTMLElement} rootNode The root to listen to.
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*/
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export const registerEventListeners = (rootNode) => {
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rootNode.addEventListener('click', (e) => {
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const rootNode = findGradableNode(e.target);
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if (rootNode) {
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e.preventDefault();
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try {
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showPostInContext(rootNode, {
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focusOnClose: e.target,
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});
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} catch (err) {
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showException(err);
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}
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}
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});
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};
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