mirror of
https://github.com/arfct/itty-bitty.git
synced 2026-03-11 08:54:33 +00:00
303 lines
11 KiB
JavaScript
303 lines
11 KiB
JavaScript
import * as bitty from './bitty.js';
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const HEAD_TAGS = () => btoa('<base target="_top">\n');
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const HEAD_TAGS_EXTENDED = () => btoa(`<meta charset="utf-8"><meta name="viewport" content="width=device-width"><base target="_top"><style type="text/css">body{margin:0 auto;padding:12vmin 10vmin;max-width:35em;line-height:1.5em;font-family:-apple-system,BlinkMacSystemFont,sans-serif;word-wrap:break-word;}@media(prefers-color-scheme: dark){body{color:white;background-color:#111;}}</style> `);
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window.dataLayer = window.dataLayer||[];function gtag(){dataLayer.push(arguments);}gtag('js', new Date());gtag('config', 'G-WHNPBD4T42');
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// if ('serviceWorker' in navigator) {
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// navigator.serviceWorker
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// .register('/worker.js')
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// .then(function() { console.debug("Service Worker Registered"); });
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// }
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function dismiss() {
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if (document.getElementById("never").checked) window.localStorage.setItem('toasted', true);
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document.body.classList.remove("toasting")
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}
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function addToast() {
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// `<div id="toast">
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// itty.bitty is experimental technology that renders linked content from outside sources.
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// <a href="http://toast.bitty.site" target="_blank">Learn more</a>.
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// <br><br>This content is only as trustworthy as its source, and it should be treated with the caution you would show any insecure web page.
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// <br><br><button onclick="dismiss()">I understand</button> <input id="never" type="checkbox"><label for="never">Never show this</label>
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// </div>`
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}
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function setFavicon(favicon) {
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document.getElementById("favicon").href = 'data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="1em" height="1em"><text y=".9em">'+ favicon + '</text></svg>'
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}
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window.el = function (tagName, attrs, ...children) {
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let l = document.createElement(tagName);
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Object.entries(attrs).forEach(([k,v]) => l[k] = v);
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children.forEach((c) => l.appendChild(c));
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return l;
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}
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const renderers = {
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"application/ld+json": {script:"recipe"},
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"text/rawhtml": {script:"parse"},
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"javascript": {script:"bookmarklet"},
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"web3": {script:"web3", mode:"frame"},
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}
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window.addEventListener("message", function(e) {
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console.debug("Message:", e.origin, e.data)
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if (e.data.title) document.title = e.data.title;
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if (e.data.favicon) setFavicon(e.data.favicon);
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if (e.data.updateURL) {
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let path = "/" + e.data.title.replace(/\s/g, "-");
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if (e.data.description) path += "/d/" + encodeURIComponent(e.data.description);
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if (e.data.favicon) path += "/f/" + encodeURIComponent(e.data.favicon);
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if (e.data.image) path += "/i/" + encodeURIComponent(btoa(e.data.image));
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window.location.pathname = path;
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}
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if (e.data.replaceURL) {
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window.history.replaceState(null, null, e.data.replaceURL);
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renderContent();
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}
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if (e.data.setStorage) document.localStorage.setItem(contentHash, e.data.set);
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if (e.data.getStorage) document.getElementById("iframe").postMessage(document.localStorage.getItem(contentHash), e.origin)
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}, false);
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function renderContent() {
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var fragment = window.location.hash.substring(1);
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if (window.location.search) { // Redirect search to path (coming out of server opengraph forwarding)
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window.history.replaceState(null, null, window.location.search.substring(1) + "#" + fragment);
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}
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var isIE = navigator.userAgent.match(/rv:11/);
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var isEdge = navigator.userAgent.match(/Edge\//);
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var isWatch = (window.outerWidth < 200);
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if (fragment.length < 3) {
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return location.href = "/edit";
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}
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// if (!window.localStorage.getItem('toasted')) document.body.classList.add("toasting");
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var iframe = document.getElementById("iframe");
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var dataPrefix = undefined;
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var renderMode = "data";
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let components = window.location.pathname.substring(1).split("/");
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let info = {}
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info.title = decodeURIComponent(components.shift()).replace(/-/g, " ").replace(/–/g, "-");
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let i;
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for (i = 0; i < components.length; i+=2) {
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let key = components[i];
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let value = decodeURIComponent(components[i+1]);
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if (key.length && value.length) info[key] = value;
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}
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info.d = info.d?.replace(/-/g, " ").replace(/–/g, "-");
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if (info.f) setFavicon(info.f);
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var slashIndex = fragment.indexOf("/");
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var title = fragment.substring(0, slashIndex) || info.title;
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if (title) title = decodeURIComponent(title.replace(/_/g, " "))
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var type = undefined;
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var description = undefined;
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document.title = title ?? location.hostname;
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fragment = fragment.substring(slashIndex + 1);
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var editable = fragment.charAt(0) == "?";
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var link = document.getElementById("edit");
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if (editable) {
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fragment = fragment.substring(1);
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document.body.appendChild(el("a", {id: "edit", onclick: function() { location.href = "/edit" + location.hash}}))
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// link.href = "/edit" + location.hash;
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}
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if (fragment.startsWith("data:")) {
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let info = bitty.infoForDataURL(fragment);
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const renderer = info.params?.render || renderers[info.mediatype]?.script;
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type = "data:" + info.mediaType;
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if (info.mediatype == "text/html") {
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dataPrefix = HEAD_TAGS();
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} else if (info.mediatype == "text/plain") {
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dataPrefix = HEAD_TAGS_EXTENDED();
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renderMode = "data";
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} else if (info.type == "text") {
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} else if (info.type == "image") {
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} else if (!renderer) {
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console.log("unknown type, rendering as download")
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renderMode = "download";
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}
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if (renderer) {
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var script = renderer;
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if (script.indexOf("/") == -1) script = location.origin + '/render/' + script + '.js'
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renderMode = "script";
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}
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if (info?.encoding == "base64" && !info.params?.encode) {
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bitty.compressDataURL(fragment, function(compressedFragment) {
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console.log("Compressing long url", fragment.length, compressedFragment.length)
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window.location.hash = window.location.hash.replace(fragment, compressedFragment);
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window.location.reload();
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console.log("Reloading")
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})
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}
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} else {
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var colon = fragment.indexOf(":");
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if ( colon > 0 && colon < 15) {
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document.body.classList.remove("toasting");
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let scheme = fragment.substring(0,colon);
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type = scheme;
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let renderer = renderers[scheme];
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if (renderer) {
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return renderContentWithScript(renderer.script, title, info, fragment, fragment);
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}
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return window.location.replace(fragment);
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}
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var compressed = true;
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dataPrefix = HEAD_TAGS_EXTENDED();
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let encoding = !compressed ? "base64," : (fragment.startsWith("XQA") ? bitty.LZMA64_MARKER : bitty.GZIP64_MARKER);
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fragment = "data:text/html;charset=utf-8;" + encoding + "," + fragment;
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}
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if ((isEdge || isIE) && location.href.length == 2083) {
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let element = document.getElementById("warning") || document.body.appendChild(el("div", {id: "warning"}))
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element.innerHTML =
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'Edge only supports shorter URLs (maximum 2083 bytes).<br>Larger sites may require a different browser.<br><a href="http://reference.bitty.site">Learn more</a>';
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}
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bitty.decompressDataURL(fragment, dataPrefix, function(dataURL, dataContent) {
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if (!dataURL) return;
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iframe.sandbox = "allow-downloads allow-scripts allow-forms allow-top-navigation allow-popups allow-modals allow-popups-to-escape-sandbox";
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if (isIE && renderMode == "data") renderMode = "frame";
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let contentTarget// = iframe.contentWindow.document;
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if (isWatch) {
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contentTarget = document;
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}
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console.log("Rendering mode: " + "\x1B[1m" + renderMode)
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// dataURL = dataURL.replace("application/ld+json", "text/plain");
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if (renderMode == "download") {
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try {
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//let dl = document.querySelector("#download");
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let extension = title.split(".")
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let dl = el("a", {id: "download", href:dataURL, download: title},
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el("div", {id: "dl-image", innerText:extension.pop() ?? ""}),
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el("div", {id: "dl-name", innerText:"title"}),
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el("div", {id: "dl-button"}),
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)
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document.body.append(dl)
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document.body.classList.add("download");
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dl.click();
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return;
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} catch (e) {
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console.log("DL error", e)
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iframe.src = dataURL;
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}
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} else if (renderMode == "data") {
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iframe.src = dataURL;
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} else {
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bitty.dataToString(dataURL, function(content) {
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if (renderMode == "frame") {
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writeDocContent(contentTarget, content)
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} else if (renderMode == "script") {
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renderContentWithScript(script, title, info, content, dataURL);
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}
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});
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}
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});
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let recordHistory = false
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if (recordHistory) recordToHistory(title, type, description, window.location);
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};
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window.addEventListener('load',renderContent);
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// window.addEventListener('hashchange',renderContent);
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const SCRIPT_LOADER = `<!doctype html><meta charset=utf-8><script src="${location.origin}/render.js"></script>`
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function renderContentWithScript(script, title, info, body, url) {
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if (script.indexOf("/") == -1) script = location.origin + '/render/' + script + '.js'
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iframe.onload = (() => {
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iframe.contentWindow.postMessage({script, url, title, info, body}, "*");
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delete iframe.onload
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});
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// writeDocContent(iframe.contentWindow.document, SCRIPT_LOADER)
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// iframe.srcdoc = SCRIPT_LOADER;
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iframe.src = "data:text/html," + SCRIPT_LOADER;
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}
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function writeDocContent(doc, content) {
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doc.open();
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doc.write(content);
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doc.close();
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}
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function recordToHistory() {
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if (navigator.storage && navigator.storage.persist)
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navigator.storage.persist().then(granted => {
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if (granted)
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console.log("Storage will not be cleared except by explicit user action");
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else
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console.log("Storage may be cleared by the UA under storage pressure.");
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});
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let openRequest = indexedDB.open("history", 1);
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openRequest.onupgradeneeded = function(event) {
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const db = event.target.result;
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const transaction = event.target.transaction;
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let objectStore;
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if (!db.objectStoreNames.contains('history')) {
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objectStore = db.createObjectStore('history', {keyPath: 'id'});
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} else {
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objectStore = transaction.objectStore('history');
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}
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objectStore.createIndex("created", "created");
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objectStore.createIndex("type", "type");
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objectStore.createIndex("terms", "terms");
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};
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openRequest.onerror = function() {
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console.error("Error", openRequest.error);
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};
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openRequest.onsuccess = () => {
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let db = openRequest.result;
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let transaction = db.transaction("history", "readwrite"); // (1)
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let history = transaction.objectStore("history"); // (2)
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let hashCode = s => s.split('').reduce((a,b)=>{a=((a<<5)-a)+b.charCodeAt(0);return a&a},0)
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console.log("hash", hashCode(location.href))
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let entry = {
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id: location.href,
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url: location.href,
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title: "",
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created: new Date()
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};
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let request = history.add(entry); // (3)
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request.onsuccess = function() { // (4)
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console.log("entry added to the history", request.result);
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};
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request.onerror = function() {
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console.log("Error", request.error);
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};
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// continue working with database using db object
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};
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}
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