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71 lines
2.6 KiB
JavaScript
71 lines
2.6 KiB
JavaScript
import { selectAll, select } from 'd3-selection';
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/*
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Uses the Mediawiki API to display a list of recent images and a link to
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the page where the image has been used/placed.
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Makes use of the following API calls:
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* https://www.mediawiki.org/wiki/API:Allimages
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* https://www.mediawiki.org/wiki/API:Imageinfo
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* https://www.mediawiki.org/wiki/API:Imageusage
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*/
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var NUM_FILES = 10; /* how many files to show */
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var main = select("#content"),
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baseurl = "/mw/api.php?action=query&list=allimages&ailimit=1&format=json&formatversion=2&aisort=timestamp&aidir=older&aiprop=timestamp|user|url|mime|size",
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url = baseurl;
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async function get_json (url) {
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var resp = await fetch(url);
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return await resp.json();
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}
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function url_for_title (title) {
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return "/w/"+encodeURI(title.replace(/ /g, "_"));
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}
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async function load () {
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let count = 0;
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while (count < NUM_FILES) {
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// console.log("starting loop", "count", count, "url", url);
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let data = await get_json(url),
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allimages = data.query.allimages,
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useimages = [];
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// console.log("got data", data.query.allimages.length);
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for (var i=0, l=allimages.length; i<l; i++) {
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let image = allimages[i];
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// console.log("image", image.name);
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let iu_data = await get_json(`/mw/api.php?action=query&list=imageusage&iutitle=${image.title}&iunamespace=0&format=json&formatversion=2`);
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image.imageusage = iu_data.query.imageusage;
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if (image.imageusage.length == 0) {
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continue;
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}
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let ii_data = await get_json(`/mw/api.php?action=query&prop=imageinfo&titles=${image.title}&iiprop=url|size&dimensions|mime&iiurlwidth=320&format=json&formatversion=2`);
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image.imageinfo = ii_data.query.pages[0].imageinfo[0];
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if (!image.imageinfo.thumburl) {
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continue;
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}
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useimages.push(image);
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}
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let items = main.selectAll("div.file")
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.data(useimages, d=>d.title)
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.enter()
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.append("div")
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.attr("class", "file")
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.append("a")
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.attr("href", d=>url_for_title(d.imageusage[d.imageusage.length-1].title))
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.attr("target", "wikiframe")
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.append("img")
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.attr('src', d=>d.imageinfo.thumburl);
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if (data.continue) {
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url = baseurl+"&aicontinue="+data.continue.aicontinue;
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}
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count += useimages.length;
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}
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}
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document.addEventListener("DOMContentLoaded", load);
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document.querySelector("a#more").addEventListener("click", function (e) {
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e.preventDefault();
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load();
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}); |