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