OpenProject is the leading open source project management software.
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openproject/modules/avatars/frontend/module/globals/global-avatar-fallback.ts

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2.4 KiB

//-- copyright
// OpenProject is a project management system.
// Copyright (C) 2012-2017 the OpenProject Foundation (OPF)
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License version 3.
//
// OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
// Copyright (C) 2006-2017 Jean-Philippe Lang
// Copyright (C) 2010-2013 the ChiliProject Team
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// See doc/COPYRIGHT.rdoc for more details.
//++
/**
* Listen to failed avatar load requests and replace them with the default icon
*/
// We can employ useCapture to avoid binding to every image#error event
window.addEventListener('error', (evt) => {
const target = evt.target as HTMLElement;
// Replace if we hit a gravatar image
if (!(target.tagName === 'IMG' && target.classList.contains('avatar--fallback'))) {
return;
}
// We need to replace all gravatars with the same source since the error event
// is fired only once
const src = (target as HTMLImageElement).src;
const targets = document.querySelectorAll(`img.avatar--fallback[src="${src}"]`)
for (var i = 0, l = targets.length; i < l; i++) {
const target = targets[i] as HTMLElement;
const parent = target.parentElement;
if (target.dataset.avatarFallbackRemove) {
parent && parent.removeChild(target);
continue;
}
const classes = target.dataset.avatarFallbackIcon || 'icon icon-user avatar';
const replacement = document.createElement('i');
replacement.classList.add(...classes.split(/\s+/));
replacement.setAttribute('aria-hidden', 'true');
parent && parent.replaceChild(replacement, target);
}
}, true);