mise a jours post wikithon winterschool 2024

special/wikipage/src/wikipage.js

@@ -0,0 +1,86 @@
+import { selectAll, select } from 'd3-selection';
+
+/*
+
+Uses the Mediawiki API to simply display the contents of a wiki page.
+
+Makes use of the following API calls:
+
+* https://www.mediawiki.org/wiki/API:Parsing_wikitext
+
+*/
+var main = select("#content"),
+    title = window.location.hash ? window.location.hash.substring(1) : "Bienvenue_à_l’erg",
+    baseurl = "/mw/api.php?action=parse&format=json&formatversion=2title=",
+    url = baseurl;
+
+async function get_json (url) {
+    var resp = await fetch(url);
+    return await resp.json();
+}
+
+function url_for_title (title) {
+    return "/w/"+encodeURI(title.replace(/ /g, "_"));
+}
+
+async function load () {
+    let count = 0,
+        debugloopcount = 0;
+    while (count < NUM_FILES) {
+        console.log("starting loop", debugloopcount, "count", count, "url", url);
+        let resp = await fetch(url),
+            data = await resp.json(),
+            allimages = data.query.allimages,
+            useimages = [];
+        // console.log("got data", data.query.allimages.length);
+        // For each image:
+        // Use API:Imageinfo request/get the URL to a thumbnail image
+        // 
+        for (var i=0, l=allimages.length; i<l; i++) {
+            let image = allimages[i];
+            // console.log("image", image.name);
+            let iu_data = await get_json(`/mw/api.php?action=query&list=imageusage&iutitle=${image.title}&iunamespace=0&format=json&formatversion=2`);
+
+            image.imageusage = iu_data.query.imageusage;
+            if (image.imageusage.length == 0) { 
+                continue;
+            }
+
+            let ii_data = await get_json(`/mw/api.php?action=query&prop=imageinfo&titles=${image.title}&iiprop=url|size&dimensions|mime&iiurlwidth=320&format=json&formatversion=2`);
+            image.imageinfo = ii_data.query.pages[0].imageinfo[0];
+            if (!image.imageinfo.thumburl) {
+                continue;
+            }
+
+            useimages.push(image);
+            // console.log("imageusage", image.name, image.imageusage.length);
+            // console.log("imageinfo", image.name, image.imageinfo);
+        }
+
+        // console.log("allimages", allimages);
+        // allimages = allimages.filter(d=>d.imageinfo.thumburl && (d.imageusage.length > 0));
+        let items = main.selectAll("div.file")
+            .data(useimages, d=>d.title)
+            .enter()
+            .append("div")
+            .attr("class", "file")
+            .append("a")
+            .attr("href", d=>url_for_title(d.imageusage[d.imageusage.length-1].title))
+            .attr("target", "wikiframe")
+            .append("img")
+            .attr('src', d=>d.imageinfo.thumburl);
+
+        if (data.continue) {
+            url = baseurl+"&aicontinue="+data.continue.aicontinue;
+        }
+        count += useimages.length;
+        debugloopcount += 1;
+        // if (debugloopcount >= 5) break;
+    }
+
+}
+document.addEventListener("DOMContentLoaded", load);
+document.querySelector("a#more").addEventListener("click", function (e) {
+    e.preventDefault();
+    load();
+});