163 lines
4.2 KiB
JavaScript
163 lines
4.2 KiB
JavaScript
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(function () {
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function getUID() {
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var array = new Uint8Array(8);
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window.crypto.getRandomValues(array);
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return Array.from(array)
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.map((b) => b.toString(16).padStart(2, "0"))
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.join("");
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}
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const params = document.currentScript.dataset;
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const UID = getUID();
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const css = `
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#--lavender-cssreset-${UID} {
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all: unset;
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}
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#--lavender-webring-container-${UID} {
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background-color: rgb(28, 23, 36);
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background-blend-mode: multiply;
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position: relative;
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background-color: ${params.backgroundColor || "purple"};
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color: ${params.textColor || "white"};
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text-shadow: 0px 1px 1px ${params.textShadowColor || "black"};
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padding: 1px;
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font-size: 16px;
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font-family: sans-serif;
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margin: 10px 0px;
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}
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#--lavender-webring-container-${UID} a {
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color: inherit !important;
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}
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#--lavender-webring-container-${UID}::before {
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display: block;
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content: ' ';
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top: 0; left: 0; bottom: 0; right: 0;
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position: absolute;
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box-sizing: border-box;
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pointer-events: none;
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border: 5px outset;
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opacity: 0.25;
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border-color: white black black white;
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}
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#--lavender-webring-container-${UID} #--lavender-webring-title-${UID} {
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margin: 10px 10px 0px;
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text-align: center;
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font-style: italic;
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}
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#--lavender-webring-container-${UID} #--lavender-webring-item-container-${UID} {
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display: flex;
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justify-content: space-around;
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}
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@media (max-width: 600px) {
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#--lavender-webring-container-${UID} #--lavender-webring-item-container-${UID} {
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flex-direction: column;
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}
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}
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#--lavender-webring-container-${UID} .--lavender-webring-items-${UID} {
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font-size: 14px;
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display: block;
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text-align: center;
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padding: 0px;
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margin: 10px 10px 8px;
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flex: 1;
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}
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#--lavender-webring-container-${UID} #--lavender-webring-item-1-${UID}::before {
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display: inline;
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content: '\\2190\\00a0';
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}
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#--lavender-webring-container-${UID} #--lavender-webring-item-3-${UID}::after {
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display: inline;
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content: '\\00a0\\2192';
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}
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`;
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const webring_content = `
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<div id="--lavender-cssreset-${UID}">
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<div id="--lavender-webring-container-${UID}">
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<p id="--lavender-webring-title-${UID}">This website is a part of the Lavender Software webring</p>
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<div id="--lavender-webring-item-container-${UID}">
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<a class="--lavender-webring-items-${UID}" id="--lavender-webring-item-1-${UID}"></a>
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<a class="--lavender-webring-items-${UID}" id="--lavender-webring-item-2-${UID}"></a>
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<a class="--lavender-webring-items-${UID}" id="--lavender-webring-item-3-${UID}"></a>
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</div>
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</div>
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</div>
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`;
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function renderIdx(data, element, idx) {
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idx = (idx + data.length) % data.length;
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datum = data[idx];
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element.textContent = datum.name;
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element.href = datum.url;
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}
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function getElementByPostfixedId(path) {
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return document.getElementById(path + "-" + UID);
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}
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function renderContent(currentScript, data) {
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const params = currentScript.dataset;
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var headstyle = document.createElement("style");
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headstyle.innerHTML = css;
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document.head.appendChild(headstyle);
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currentScript.insertAdjacentHTML("afterend", webring_content);
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const container = getElementByPostfixedId("--lavender-webring-container");
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const item1 = getElementByPostfixedId("--lavender-webring-item-1");
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const item2 = getElementByPostfixedId("--lavender-webring-item-2");
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const item3 = getElementByPostfixedId("--lavender-webring-item-3");
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const id = params.siteId;
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var idindex = -1;
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for (var i = 0; i < data.length; i++) {
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if (data[i].id == id) {
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idindex = i;
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}
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}
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if (idindex == -1) {
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item2.textContent =
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"this site was not found in the list. please check that you don't have any typos in the id!";
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return;
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}
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if ("hideTitle" in params) {
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getElementByPostfixedId("--lavender-webring-title").style.display =
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"none";
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}
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renderIdx(data, item1, idindex - 1);
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renderIdx(data, item2, idindex);
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renderIdx(data, item3, idindex + 1);
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}
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const currentScript = document.currentScript;
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if (currentScript) {
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fetch("https://lavender.software/webring/data.json")
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.then(function (response) {
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return response.json();
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})
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.then(function (data) {
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renderContent(currentScript, data);
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});
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} else {
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console.log("cannot locate document.currentScript element. aborting...");
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}
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})();
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