debian-mirror-gitlab/app/assets/javascripts/merge_request_tabs.js
2021-09-30 23:02:18 +05:30

523 lines
17 KiB
JavaScript

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