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import {joinPaths} from './utils.js';
// DO NOT IMPORT window.config HERE!
// to make sure the error handler always works, we should never import `window.config`, because some user's custom template breaks it.
// This sets up the URL prefix used in webpack's chunk loading.
// This file must be imported before any lazy-loading is being attempted.
__webpack_public_path__ = joinPaths(window?.config?.assetUrlPrefix ?? '/', '/');
export function showGlobalErrorMessage(msg) {
const pageContent = document.querySelector('.page-content');
if (!pageContent) return;
const el = document.createElement('div');
el.innerHTML = `<div class="ui container negative message center aligned js-global-error" style="white-space: pre-line;"></div>`;
el.childNodes[0].textContent = msg;
pageContent.prepend(el.childNodes[0]);
}
/**
* @param {ErrorEvent} e
*/
function processWindowErrorEvent(e) {
if (!e.error && e.lineno === 0 && e.colno === 0 && e.filename === '' && window.navigator.userAgent.includes('FxiOS/')) {
// At the moment, Firefox (iOS) (10x) has an engine bug. See https://github.com/go-gitea/gitea/issues/20240
// If a script inserts a newly created (and content changed) element into DOM, there will be a nonsense error event reporting: Script error: line 0, col 0.
return; // ignore such nonsense error event
}
showGlobalErrorMessage(`JavaScript error: ${e.message} (${e.filename} @ ${e.lineno}:${e.colno}). Open browser console to see more details.`);
}
function initGlobalErrorHandler() {
if (!window.config) {
showGlobalErrorMessage(`Gitea JavaScript code couldn't run correctly, please check your custom templates`);
}
// we added an event handler for window error at the very beginning of <script> of page head
// the handler calls `_globalHandlerErrors.push` (array method) to record all errors occur before this init
// then in this init, we can collect all error events and show them
for (const e of window._globalHandlerErrors || []) {
processWindowErrorEvent(e);
}
// then, change _globalHandlerErrors to an object with push method, to process further error events directly
window._globalHandlerErrors = {'push': (e) => processWindowErrorEvent(e)};
}
initGlobalErrorHandler();
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