| /* |
| * noVNC: HTML5 VNC client |
| * Copyright (C) 2019 The noVNC Authors |
| * Licensed under MPL 2.0 (see LICENSE.txt) |
| * |
| * See README.md for usage and integration instructions. |
| */ |
| |
| // NB: this should *not* be included as a module until we have |
| // native support in the browsers, so that our error handler |
| // can catch script-loading errors. |
| |
| // No ES6 can be used in this file since it's used for the translation |
| /* eslint-disable prefer-arrow-callback */ |
| |
| (function _scope() { |
| "use strict"; |
| |
| // Fallback for all uncought errors |
| function handleError(event, err) { |
| try { |
| const msg = document.getElementById('noVNC_fallback_errormsg'); |
| |
| // Only show the initial error |
| if (msg.hasChildNodes()) { |
| return false; |
| } |
| |
| let div = document.createElement("div"); |
| div.classList.add('noVNC_message'); |
| div.appendChild(document.createTextNode(event.message)); |
| msg.appendChild(div); |
| |
| if (event.filename) { |
| div = document.createElement("div"); |
| div.className = 'noVNC_location'; |
| let text = event.filename; |
| if (event.lineno !== undefined) { |
| text += ":" + event.lineno; |
| if (event.colno !== undefined) { |
| text += ":" + event.colno; |
| } |
| } |
| div.appendChild(document.createTextNode(text)); |
| msg.appendChild(div); |
| } |
| |
| if (err && err.stack) { |
| div = document.createElement("div"); |
| div.className = 'noVNC_stack'; |
| div.appendChild(document.createTextNode(err.stack)); |
| msg.appendChild(div); |
| } |
| |
| document.getElementById('noVNC_fallback_error') |
| .classList.add("noVNC_open"); |
| } catch (exc) { |
| document.write("noVNC encountered an error."); |
| } |
| // Don't return true since this would prevent the error |
| // from being printed to the browser console. |
| return false; |
| } |
| window.addEventListener('error', function onerror(evt) { handleError(evt, evt.error); }); |
| window.addEventListener('unhandledrejection', function onreject(evt) { handleError(evt.reason, evt.reason); }); |
| })(); |