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Maurice
a9fb0fc475
A Photo credits link in the dialog's footer opens a second view with every photo: its title linking to its page on Wikimedia Commons, its author and its license linking to the deed. The list is its own chunk, loaded when a visitor opens it. The countdown test reads the clock the interval moved.
51 lines
2.0 KiB
TypeScript
51 lines
2.0 KiB
TypeScript
import credits from './photoCredits.json';
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/**
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* One photo of the demo content as Wikimedia Commons credits it: the file's
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* name there, its author and the short name of its license. The page on
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* Commons, the title to show and the license's deed all follow from these, so
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* photoCredits.json holds nothing else.
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*/
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export interface PhotoCredit {
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file: string;
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author: string;
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license: string;
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}
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/**
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* Every photo in the demo content, sorted by file name. The authors are the
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* plain names: where Commons fills the field with a notice or a link label
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* ("This Photo was taken by ...", "(Flickr)"), the list holds the name it
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* gives, and where the author asks to be credited in a set form, that form.
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*/
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export const PHOTO_CREDITS: readonly PhotoCredit[] = credits;
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/** The license name Commons gives a photo nobody holds a copyright in; it has no deed to link. */
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export const PUBLIC_DOMAIN = 'Public domain';
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const COMMONS_FILE_PAGE = 'https://commons.wikimedia.org/wiki/File:';
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/** The file's name without its extension, the title Commons shows above the photo. */
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export function creditTitle(file: string): string {
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const dot = file.lastIndexOf('.');
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return dot > 0 ? file.slice(0, dot) : file;
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}
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/** The file's page on Commons, with its full description and license. */
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export function commonsPage(file: string): string {
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return COMMONS_FILE_PAGE + encodeURIComponent(file.replace(/ /g, '_'));
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}
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/**
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* The deed of a Creative Commons license by the short name Commons gives it:
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* "CC BY-SA 4.0", a ported one such as "CC BY-SA 2.0 de", or "CC0". Nothing
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* for the public domain, which is no license.
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*/
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export function licenseDeed(license: string): string | undefined {
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if (license === 'CC0') return 'https://creativecommons.org/publicdomain/zero/1.0/';
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const match = /^CC (BY(?:-SA)?) (\d\.\d)(?: ([a-z]{2}))?$/.exec(license);
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if (!match) return undefined;
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const [, terms, version, port] = match;
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return `https://creativecommons.org/licenses/${terms.toLowerCase()}/${version}/${port ? `${port}/` : ''}`;
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}
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