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Backport #28441 by wxiaoguang
Fix #28319
It only polyfills if there is no "SubmitEvent" class, so it has no side
effect for most users.
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
(cherry picked from commit 6af698fb81
)
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6 changed files with 31 additions and 7 deletions
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@ -6,7 +6,7 @@ import {initCompColorPicker} from './comp/ColorPicker.js';
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import {showGlobalErrorMessage} from '../bootstrap.js';
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import {handleGlobalEnterQuickSubmit} from './comp/QuickSubmit.js';
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import {svg} from '../svg.js';
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import {hideElem, showElem, toggleElem} from '../utils/dom.js';
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import {hideElem, showElem, toggleElem, initSubmitEventPolyfill, submitEventSubmitter} from '../utils/dom.js';
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import {htmlEscape} from 'escape-goat';
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import {showTemporaryTooltip} from '../modules/tippy.js';
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import {confirmModal} from './comp/ConfirmModal.js';
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@ -122,7 +122,8 @@ async function formFetchAction(e) {
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const formMethod = formEl.getAttribute('method') || 'get';
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const formActionUrl = formEl.getAttribute('action');
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const formData = new FormData(formEl);
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const [submitterName, submitterValue] = [e.submitter?.getAttribute('name'), e.submitter?.getAttribute('value')];
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const formSubmitter = submitEventSubmitter(e);
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const [submitterName, submitterValue] = [formSubmitter?.getAttribute('name'), formSubmitter?.getAttribute('value')];
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if (submitterName) {
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formData.append(submitterName, submitterValue || '');
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}
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@ -193,6 +194,7 @@ export function initGlobalCommon() {
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$('.tabular.menu .item').tab();
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initSubmitEventPolyfill();
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document.addEventListener('submit', formFetchAction);
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document.addEventListener('click', linkAction);
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}
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@ -1,5 +1,5 @@
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import $ from 'jquery';
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import {isElemHidden, onInputDebounce, toggleElem} from '../utils/dom.js';
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import {isElemHidden, onInputDebounce, submitEventSubmitter, toggleElem} from '../utils/dom.js';
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import {GET} from '../modules/fetch.js';
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const {appSubUrl} = window.config;
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@ -40,7 +40,7 @@ export function initCommonIssueListQuickGoto() {
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$form.on('submit', (e) => {
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// if there is no goto button, or the form is submitted by non-quick-goto elements, submit the form directly
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let doQuickGoto = !isElemHidden($goto);
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const submitter = e.originalEvent.submitter;
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const submitter = submitEventSubmitter(e.originalEvent);
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if (submitter !== $form[0] && submitter !== $input[0] && submitter !== $goto[0]) doQuickGoto = false;
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if (!doQuickGoto) return;
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@ -7,6 +7,7 @@ import {validateTextareaNonEmpty} from './comp/ComboMarkdownEditor.js';
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import {initViewedCheckboxListenerFor, countAndUpdateViewedFiles, initExpandAndCollapseFilesButton} from './pull-view-file.js';
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import {initImageDiff} from './imagediff.js';
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import {showErrorToast} from '../modules/toast.js';
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import {submitEventSubmitter} from '../utils/dom.js';
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const {csrfToken, pageData, i18n} = window.config;
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@ -57,7 +58,7 @@ function initRepoDiffConversationForm() {
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const formData = new FormData($form[0]);
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// if the form is submitted by a button, append the button's name and value to the form data
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const submitter = e.originalEvent?.submitter;
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const submitter = submitEventSubmitter(e.originalEvent);
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const isSubmittedByButton = (submitter?.nodeName === 'BUTTON') || (submitter?.nodeName === 'INPUT' && submitter.type === 'submit');
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if (isSubmittedByButton && submitter.name) {
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formData.append(submitter.name, submitter.value);
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@ -106,7 +106,7 @@ function switchTitleToTooltip(target) {
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/**
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* Creating tooltip tippy instance is expensive, so we only create it when the user hovers over the element
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* According to https://www.w3.org/TR/DOM-Level-3-Events/#events-mouseevent-event-order , mouseover event is fired before mouseenter event
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* Some old browsers like Pale Moon doesn't support "mouseenter(capture)"
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* Some browsers like PaleMoon don't support "addEventListener('mouseenter', capture)"
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* The tippy by default uses "mouseenter" event to show, so we use "mouseover" event to switch to tippy
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* @param e {Event}
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*/
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@ -194,3 +194,24 @@ export function loadElem(el, src) {
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el.src = src;
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});
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}
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// some browsers like PaleMoon don't have "SubmitEvent" support, so polyfill it by a tricky method: use the last clicked button as submitter
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// it can't use other transparent polyfill patches because PaleMoon also doesn't support "addEventListener(capture)"
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const needSubmitEventPolyfill = typeof SubmitEvent === 'undefined';
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export function submitEventSubmitter(e) {
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return needSubmitEventPolyfill ? (e.target._submitter || null) : e.submitter;
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}
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function submitEventPolyfillListener(e) {
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const form = e.target.closest('form');
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if (!form) return;
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form._submitter = e.target.closest('button:not([type]), button[type="submit"], input[type="submit"]');
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}
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export function initSubmitEventPolyfill() {
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if (!needSubmitEventPolyfill) return;
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console.warn(`This browser doesn't have "SubmitEvent" support, use a tricky method to polyfill`);
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document.body.addEventListener('click', submitEventPolyfillListener);
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document.body.addEventListener('focus', submitEventPolyfillListener);
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}
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@ -1,4 +1,4 @@
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import '@webcomponents/custom-elements'; // polyfill for some browsers like Pale Moon
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import '@webcomponents/custom-elements'; // polyfill for some browsers like PaleMoon
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import './polyfill.js';
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import '@github/relative-time-element';
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