1 files changed, 104 insertions, 0 deletions
diff --git a/js/page.ts b/js/page.ts
new file mode 100644
index 0000000..c4f0d71
--- /dev/null
+++ b/js/page.ts
@@ -0,0 +1,104 @@
+namespace Ach {
+	export async function initImages() {
+		let page = Ach.getOnlyElement(document, "page");
+
+		let imageList = Array.from(page.getElementsByTagName("x-image"));
+
+		for (let image of imageList) {
+			let alt  = image.getAttribute("alt");
+			let file = image.getAttribute("data-file");
+
+			if (!alt) {
+				alert("stupid superuser forgot to add image caption, please notify");
+				alt = "";
+			}
+
+			if (!file) {
+				throw new Error("file not set for image element");
+			}
+
+			console.log("initialising image that links to \"" + file + "\"");
+
+			let sourceUrl    = "/image/source/" + file + ".webp";
+			let thumbnailUrl = "/image/thumbnail/" + file + ".avif";
+
+			let blurElement = document.createElement("img");
+			blurElement.setAttribute("class", "blur");
+			blurElement.setAttribute("src",   thumbnailUrl);
+
+			let hyperlinkElement = document.createElement("a");
+			hyperlinkElement.setAttribute("href",   sourceUrl);
+			hyperlinkElement.setAttribute("rel",    "noopener noreferrer");
+			hyperlinkElement.setAttribute("target", "_blank");
+			hyperlinkElement.setAttribute("title", "Click to view image source.");
+
+			let image_element = document.createElement("img");
+			image_element.setAttribute("alt", alt);
+			image_element.setAttribute("src", thumbnailUrl);
+
+			hyperlinkElement.appendChild(image_element);
+
+			image.appendChild(blurElement);
+			image.appendChild(hyperlinkElement);
+		}
+	}
+
+	export async function initLinks() {
+		console.log("initialising links");
+
+		let stats = {
+			total:         0x0,
+			overrideCount: 0x0,
+			currentCount:  0x0,
+		};
+
+		for (let link of document.getElementsByTagName("a")) {
+			++stats.total;
+
+			let address = link.getAttribute("href");
+
+			if (!address) {
+				console.log("note: skipping override of empty link");
+				continue;
+			}
+
+			let pageAnchor = Ach.parseInternalLink(address);
+
+			if (!pageAnchor) {
+				console.log(`note: skipping override of link to "${address}"`);
+				continue;
+			}
+
+			console.log(`note: overriding link to "${address}"`);
+			++stats.overrideCount;
+
+			let command = `Ach.loadPage(${JSON.stringify(pageAnchor[0x0])}, ${JSON.stringify(pageAnchor[0x1])})`
+
+			link.removeAttribute("href");
+			link.setAttribute("data-page", pageAnchor[0x0]);
+			link.setAttribute("onclick", command);
+
+			if (pageAnchor[0x1]) {
+				link.setAttribute("data-anchor", pageAnchor[0x1]);
+			}
+		}
+
+		let currentPage = Ach.currentPage();
+
+		for (let link of document.getElementsByTagName("a")) {
+			let page   = link.getAttribute("data-page");
+			let anchor = link.getAttribute("data-anchor");
+
+			if (page == currentPage && !anchor) {
+				++stats.currentCount;
+				link.setAttribute("aria-current", "page");
+			} else {
+				link.setAttribute("aria-current", "false");
+			}
+		}
+
+		console.log(`note: initialised (${stats.total}) links`);
+		console.log(`note: of which (${stats.overrideCount}) overrides were done`);
+		console.log(`note: and of which (${stats.currentCount}) were marked as current`);
+	}
+}