519 lines
16 KiB
JavaScript
519 lines
16 KiB
JavaScript
/* eslint-disable no-new, class-methods-use-this */
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import $ from 'jquery';
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import { GlBreakpointInstance as bp } from '@gitlab/ui/dist/utils';
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import Cookies from 'js-cookie';
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import createEventHub from '~/helpers/event_hub_factory';
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import axios from './lib/utils/axios_utils';
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import flash from './flash';
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import BlobForkSuggestion from './blob/blob_fork_suggestion';
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import initChangesDropdown from './init_changes_dropdown';
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import {
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parseUrlPathname,
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handleLocationHash,
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isMetaClick,
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parseBoolean,
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} from './lib/utils/common_utils';
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import { isInVueNoteablePage } from './lib/utils/dom_utils';
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import { getLocationHash } from './lib/utils/url_utility';
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import Diff from './diff';
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import { localTimeAgo } from './lib/utils/datetime_utility';
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import syntaxHighlight from './syntax_highlight';
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import Notes from './notes';
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import { polyfillSticky } from './lib/utils/sticky';
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import { __ } from './locale';
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// MergeRequestTabs
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//
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// Handles persisting and restoring the current tab selection and lazily-loading
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// content on the MergeRequests#show page.
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//
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// ### Example Markup
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//
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// <ul class="nav-links merge-request-tabs">
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// <li class="notes-tab active">
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// <a data-action="notes" data-target="#notes" data-toggle="tab" href="/foo/bar/-/merge_requests/1">
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// Discussion
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// </a>
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// </li>
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// <li class="commits-tab">
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// <a data-action="commits" data-target="#commits" data-toggle="tab" href="/foo/bar/-/merge_requests/1/commits">
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// Commits
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// </a>
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// </li>
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// <li class="diffs-tab">
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// <a data-action="diffs" data-target="#diffs" data-toggle="tab" href="/foo/bar/-/merge_requests/1/diffs">
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// Diffs
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// </a>
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// </li>
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// </ul>
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//
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// <div class="tab-content">
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// <div class="notes tab-pane active" id="notes">
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// Notes Content
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// </div>
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// <div class="commits tab-pane" id="commits">
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// Commits Content
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// </div>
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// <div class="diffs tab-pane" id="diffs">
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// Diffs Content
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// </div>
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// </div>
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//
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// <div class="mr-loading-status">
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// <div class="loading">
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// Loading Animation
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// </div>
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// </div>
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//
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// Store the `location` object, allowing for easier stubbing in tests
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let { location } = window;
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export default class MergeRequestTabs {
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constructor({ action, setUrl, stubLocation } = {}) {
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this.mergeRequestTabs = document.querySelector('.merge-request-tabs-container');
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this.mergeRequestTabsAll =
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this.mergeRequestTabs && this.mergeRequestTabs.querySelectorAll
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? this.mergeRequestTabs.querySelectorAll('.merge-request-tabs li')
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: null;
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this.mergeRequestTabPanes = document.querySelector('#diff-notes-app');
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this.mergeRequestTabPanesAll =
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this.mergeRequestTabPanes && this.mergeRequestTabPanes.querySelectorAll
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? this.mergeRequestTabPanes.querySelectorAll('.tab-pane')
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: null;
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const navbar = document.querySelector('.navbar-gitlab');
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const peek = document.getElementById('js-peek');
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const paddingTop = 16;
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this.commitsTab = document.querySelector('.tab-content .commits.tab-pane');
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this.currentTab = null;
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this.diffsLoaded = false;
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this.pipelinesLoaded = false;
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this.commitsLoaded = false;
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this.fixedLayoutPref = null;
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this.eventHub = createEventHub();
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this.setUrl = setUrl !== undefined ? setUrl : true;
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this.setCurrentAction = this.setCurrentAction.bind(this);
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this.tabShown = this.tabShown.bind(this);
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this.clickTab = this.clickTab.bind(this);
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this.stickyTop = navbar ? navbar.offsetHeight - paddingTop : 0;
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if (peek) {
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this.stickyTop += peek.offsetHeight;
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}
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if (this.mergeRequestTabs) {
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this.stickyTop += this.mergeRequestTabs.offsetHeight;
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}
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if (stubLocation) {
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location = stubLocation;
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}
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this.bindEvents();
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if (
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this.mergeRequestTabs &&
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this.mergeRequestTabs.querySelector(`a[data-action='${action}']`) &&
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this.mergeRequestTabs.querySelector(`a[data-action='${action}']`).click
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) {
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this.mergeRequestTabs.querySelector(`a[data-action='${action}']`).click();
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}
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this.initAffix();
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}
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bindEvents() {
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$('.merge-request-tabs a[data-toggle="tabvue"]').on('click', this.clickTab);
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window.addEventListener('popstate', event => {
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if (event.state && event.state.action) {
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this.tabShown(event.state.action, event.target.location);
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this.currentAction = event.state.action;
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this.eventHub.$emit('MergeRequestTabChange', this.getCurrentAction());
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}
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});
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}
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// Used in tests
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unbindEvents() {
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$('.merge-request-tabs a[data-toggle="tabvue"]').off('click', this.clickTab);
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}
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destroyPipelinesView() {
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if (this.commitPipelinesTable) {
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this.commitPipelinesTable.$destroy();
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this.commitPipelinesTable = null;
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document.querySelector('#commit-pipeline-table-view').innerHTML = '';
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}
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}
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clickTab(e) {
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if (e.currentTarget) {
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e.stopImmediatePropagation();
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e.preventDefault();
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const { action } = e.currentTarget.dataset || {};
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if (isMetaClick(e)) {
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const targetLink = e.currentTarget.getAttribute('href');
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window.open(targetLink, '_blank');
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} else if (action) {
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const href = e.currentTarget.getAttribute('href');
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this.tabShown(action, href);
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if (this.setUrl) {
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this.setCurrentAction(action);
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}
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this.eventHub.$emit('MergeRequestTabChange', this.getCurrentAction());
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}
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}
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}
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tabShown(action, href) {
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if (action !== this.currentTab && this.mergeRequestTabs) {
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this.currentTab = action;
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if (this.mergeRequestTabPanesAll) {
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this.mergeRequestTabPanesAll.forEach(el => {
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const tabPane = el;
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tabPane.style.display = 'none';
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});
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}
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if (this.mergeRequestTabsAll) {
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this.mergeRequestTabsAll.forEach(el => {
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el.classList.remove('active');
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});
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}
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const tabPane = this.mergeRequestTabPanes.querySelector(`#${action}`);
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if (tabPane) tabPane.style.display = 'block';
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const tab = this.mergeRequestTabs.querySelector(`.${action}-tab`);
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if (tab) tab.classList.add('active');
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if (action === 'commits') {
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this.loadCommits(href);
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this.expandView();
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this.resetViewContainer();
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this.destroyPipelinesView();
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} else if (action === 'new') {
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this.expandView();
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this.resetViewContainer();
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this.destroyPipelinesView();
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} else if (this.isDiffAction(action)) {
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if (!isInVueNoteablePage()) {
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this.loadDiff(href);
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}
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if (bp.getBreakpointSize() !== 'xl') {
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this.shrinkView();
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}
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this.expandViewContainer();
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this.destroyPipelinesView();
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this.commitsTab.classList.remove('active');
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} else if (action === 'pipelines') {
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this.resetViewContainer();
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this.mountPipelinesView();
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} else {
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this.mergeRequestTabPanes.querySelector('#notes').style.display = 'block';
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this.mergeRequestTabs.querySelector('.notes-tab').classList.add('active');
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if (bp.getBreakpointSize() !== 'xs') {
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this.expandView();
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}
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this.resetViewContainer();
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this.destroyPipelinesView();
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}
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} else if (action === this.currentAction) {
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// ContentTop is used to handle anything at the top of the page before the main content
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const mainContentContainer = document.querySelector('.content-wrapper');
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const tabContentContainer = document.querySelector('.tab-content');
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if (mainContentContainer && tabContentContainer) {
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const mainContentTop = mainContentContainer.getBoundingClientRect().top;
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const tabContentTop = tabContentContainer.getBoundingClientRect().top;
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// 51px is the height of the navbar buttons, e.g. `Discussion | Commits | Changes`
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const scrollDestination = tabContentTop - mainContentTop - 51;
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// scrollBehavior is only available in browsers that support scrollToOptions
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if ('scrollBehavior' in document.documentElement.style) {
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window.scrollTo({
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top: scrollDestination,
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behavior: 'smooth',
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});
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} else {
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window.scrollTo(0, scrollDestination);
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}
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}
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}
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}
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scrollToElement(container) {
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if (location.hash) {
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const offset = 0 - ($('.navbar-gitlab').outerHeight() + $('.js-tabs-affix').outerHeight());
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const $el = $(`${container} ${location.hash}:not(.match)`);
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if ($el.length) {
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$.scrollTo($el[0], { offset });
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}
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}
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}
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// Replaces the current Merge Request-specific action in the URL with a new one
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//
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// If the action is "notes", the URL is reset to the standard
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// `MergeRequests#show` route.
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//
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// Examples:
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//
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// location.pathname # => "/namespace/project/-/merge_requests/1"
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// setCurrentAction('diffs')
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// location.pathname # => "/namespace/project/-/merge_requests/1/diffs"
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//
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// location.pathname # => "/namespace/project/-/merge_requests/1/diffs"
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// setCurrentAction('show')
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// location.pathname # => "/namespace/project/-/merge_requests/1"
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//
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// location.pathname # => "/namespace/project/-/merge_requests/1/diffs"
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// setCurrentAction('commits')
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// location.pathname # => "/namespace/project/-/merge_requests/1/commits"
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//
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// Returns the new URL String
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setCurrentAction(action) {
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this.currentAction = action;
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// Remove a trailing '/commits' '/diffs' '/pipelines'
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let newState = location.pathname.replace(/\/(commits|diffs|pipelines)(\.html)?\/?$/, '');
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// Append the new action if we're on a tab other than 'notes'
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if (this.currentAction !== 'show' && this.currentAction !== 'new') {
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newState += `/${this.currentAction}`;
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}
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// Ensure parameters and hash come along for the ride
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newState += location.search + location.hash;
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if (window.history.state && window.history.state.url && window.location.pathname !== newState) {
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window.history.pushState(
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{
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url: newState,
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action: this.currentAction,
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},
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document.title,
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newState,
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);
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} else {
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window.history.replaceState(
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{
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url: window.location.href,
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action,
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},
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document.title,
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window.location.href,
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);
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}
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return newState;
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}
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getCurrentAction() {
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return this.currentAction;
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}
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loadCommits(source) {
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if (this.commitsLoaded) {
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return;
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}
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this.toggleLoading(true);
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axios
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.get(`${source}.json`)
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.then(({ data }) => {
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document.querySelector('div#commits').innerHTML = data.html;
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localTimeAgo($('.js-timeago', 'div#commits'));
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this.commitsLoaded = true;
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this.scrollToElement('#commits');
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this.toggleLoading(false);
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})
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.catch(() => {
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this.toggleLoading(false);
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flash(__('An error occurred while fetching this tab.'));
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});
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}
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mountPipelinesView() {
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const pipelineTableViewEl = document.querySelector('#commit-pipeline-table-view');
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const { CommitPipelinesTable, mrWidgetData } = gl;
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this.commitPipelinesTable = new CommitPipelinesTable({
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propsData: {
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endpoint: pipelineTableViewEl.dataset.endpoint,
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helpPagePath: pipelineTableViewEl.dataset.helpPagePath,
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emptyStateSvgPath: pipelineTableViewEl.dataset.emptyStateSvgPath,
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errorStateSvgPath: pipelineTableViewEl.dataset.errorStateSvgPath,
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autoDevopsHelpPath: pipelineTableViewEl.dataset.helpAutoDevopsPath,
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canRunPipeline: true,
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projectId: pipelineTableViewEl.dataset.projectId,
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mergeRequestId: mrWidgetData ? mrWidgetData.iid : null,
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},
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}).$mount();
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// $mount(el) replaces the el with the new rendered component. We need it in order to mount
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// it everytime this tab is clicked - https://vuejs.org/v2/api/#vm-mount
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pipelineTableViewEl.appendChild(this.commitPipelinesTable.$el);
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}
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loadDiff(source) {
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if (this.diffsLoaded) {
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document.dispatchEvent(new CustomEvent('scroll'));
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return;
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}
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// We extract pathname for the current Changes tab anchor href
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// some pages like MergeRequestsController#new has query parameters on that anchor
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const urlPathname = parseUrlPathname(source);
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this.toggleLoading(true);
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axios
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.get(`${urlPathname}.json${location.search}`)
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.then(({ data }) => {
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const $container = $('#diffs');
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$container.html(data.html);
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initChangesDropdown(this.stickyTop);
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if (typeof gl.diffNotesCompileComponents !== 'undefined') {
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gl.diffNotesCompileComponents();
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}
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localTimeAgo($('.js-timeago', 'div#diffs'));
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syntaxHighlight($('#diffs .js-syntax-highlight'));
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if (this.isDiffAction(this.currentAction)) {
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this.expandViewContainer();
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}
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this.diffsLoaded = true;
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new Diff();
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this.scrollToElement('#diffs');
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$('.diff-file').each((i, el) => {
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new BlobForkSuggestion({
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openButtons: $(el).find('.js-edit-blob-link-fork-toggler'),
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forkButtons: $(el).find('.js-fork-suggestion-button'),
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cancelButtons: $(el).find('.js-cancel-fork-suggestion-button'),
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suggestionSections: $(el).find('.js-file-fork-suggestion-section'),
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actionTextPieces: $(el).find('.js-file-fork-suggestion-section-action'),
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}).init();
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});
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// Scroll any linked note into view
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// Similar to `toggler_behavior` in the discussion tab
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const hash = getLocationHash();
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const anchor = hash && $container.find(`.note[id="${hash}"]`);
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if (anchor && anchor.length > 0) {
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const notesContent = anchor.closest('.notes-content');
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const lineType = notesContent.hasClass('new') ? 'new' : 'old';
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Notes.instance.toggleDiffNote({
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target: anchor,
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lineType,
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forceShow: true,
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});
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anchor[0].scrollIntoView();
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handleLocationHash();
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// We have multiple elements on the page with `#note_xxx`
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// (discussion and diff tabs) and `:target` only applies to the first
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anchor.addClass('target');
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}
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this.toggleLoading(false);
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})
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.catch(() => {
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this.toggleLoading(false);
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flash(__('An error occurred while fetching this tab.'));
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});
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}
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// Show or hide the loading spinner
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//
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// status - Boolean, true to show, false to hide
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toggleLoading(status) {
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$('.mr-loading-status .loading').toggleClass('hide', !status);
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}
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diffViewType() {
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return $('.js-diff-view-buttons button.active').data('viewType');
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}
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isDiffAction(action) {
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return action === 'diffs' || action === 'new/diffs';
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}
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expandViewContainer(removeLimited = true) {
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const $wrapper = $('.content-wrapper .container-fluid').not('.breadcrumbs');
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if (this.fixedLayoutPref === null) {
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this.fixedLayoutPref = $wrapper.hasClass('container-limited');
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}
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if (this.diffViewType() === 'parallel' || removeLimited) {
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$wrapper.removeClass('container-limited');
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} else {
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$wrapper.toggleClass('container-limited', this.fixedLayoutPref);
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}
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}
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resetViewContainer() {
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if (this.fixedLayoutPref !== null) {
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$('.content-wrapper .container-fluid').toggleClass('container-limited', this.fixedLayoutPref);
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}
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}
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shrinkView() {
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const $gutterIcon = $('.js-sidebar-toggle i:visible');
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// Wait until listeners are set
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setTimeout(() => {
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// Only when sidebar is expanded
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if ($gutterIcon.is('.fa-angle-double-right')) {
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$gutterIcon.closest('a').trigger('click', [true]);
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}
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}, 0);
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}
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// Expand the issuable sidebar unless the user explicitly collapsed it
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expandView() {
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if (parseBoolean(Cookies.get('collapsed_gutter'))) {
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return;
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}
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const $gutterIcon = $('.js-sidebar-toggle i:visible');
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// Wait until listeners are set
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setTimeout(() => {
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// Only when sidebar is collapsed
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if ($gutterIcon.is('.fa-angle-double-left')) {
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$gutterIcon.closest('a').trigger('click', [true]);
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}
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}, 0);
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}
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initAffix() {
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const $tabs = $('.js-tabs-affix');
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// Screen space on small screens is usually very sparse
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// So we dont affix the tabs on these
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if (bp.getBreakpointSize() === 'xs' || !$tabs.length) return;
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/**
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If the browser does not support position sticky, it returns the position as static.
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If the browser does support sticky, then we allow the browser to handle it, if not
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then we default back to Bootstraps affix
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*/
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if ($tabs.css('position') !== 'static') return;
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polyfillSticky($tabs);
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}
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}
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