65 lines
1.8 KiB
JavaScript
65 lines
1.8 KiB
JavaScript
// Copyright 2015-2021 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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/* global Whisper, loadImage, $ */
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// eslint-disable-next-line func-names
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(function () {
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window.Whisper = window.Whisper || {};
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/*
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* Render an avatar identicon to an svg for use in a notification.
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*/
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Whisper.IdenticonSVGView = Whisper.View.extend({
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template: () => $('#identicon-svg').html(),
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initialize(options) {
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this.render_attributes = options;
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this.render_attributes.color = COLORS[this.render_attributes.color];
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},
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getSVGUrl() {
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const html = this.render().$el.html();
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const svg = new Blob([html], { type: 'image/svg+xml;charset=utf-8' });
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return URL.createObjectURL(svg);
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},
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getDataUrl() /* : Promise<string> */ {
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const svgurl = this.getSVGUrl();
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return new Promise(resolve => {
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const img = document.createElement('img');
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img.onload = () => {
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const canvas = loadImage.scale(img, {
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canvas: true,
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maxWidth: 100,
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maxHeight: 100,
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});
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const ctx = canvas.getContext('2d');
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ctx.drawImage(img, 0, 0);
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URL.revokeObjectURL(svgurl);
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resolve(canvas.toDataURL('image/png'));
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};
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img.onerror = () => {
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URL.revokeObjectURL(svgurl);
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// If this fails for some reason, we'd rather continue on than reject.
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resolve(undefined);
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};
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img.src = svgurl;
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});
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},
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});
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const COLORS = {
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blue: '#0a69c7',
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burlap: '#866118',
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crimson: '#d00b2c',
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forest: '#067919',
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indigo: '#5151f6',
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plum: '#c70a88',
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steel: '#077288',
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taupe: '#cb0b6b',
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teal: '#077288',
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ultramarine: '#0d59f2',
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vermilion: '#c72a0a',
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violet: '#a20ced',
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wintergreen: '#067953',
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};
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})();
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