92 lines
2.3 KiB
JavaScript
92 lines
2.3 KiB
JavaScript
var template = {};
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tDocLoader();
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function t(key, params) {
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var s = chrome.i18n.getMessage(key, params)
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if (s == "") {
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throw "Missing string '" + key + "'.";
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}
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return s;
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}
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function o(key) {
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document.write(t(key));
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}
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function tE(id, key, attr, esc) {
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if (attr) {
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document.getElementById(id).setAttribute(attr, t(key));
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} else if (typeof esc == "undefined" || esc) {
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document.getElementById(id).appendChild(document.createTextNode(t(key)));
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} else {
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document.getElementById(id).innerHTML = t(key);
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}
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}
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function tHTML(html) {
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var node = document.createElement("div");
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node.innerHTML = html.replace(/>\s+</g, '><'); // spaces are removed; use for an explicit space
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tNodeList(node.querySelectorAll("*"));
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var child = node.removeChild(node.firstElementChild);
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node.remove();
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return child;
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}
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function tNodeList(nodes) {
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for (var n = 0; n < nodes.length; n++) {
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var node = nodes[n];
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if (node.nodeType != 1) { // not an ELEMENT_NODE
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continue;
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}
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if (node.localName == "template") {
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tNodeList(node.content.querySelectorAll("*"));
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template[node.dataset.id] = node.content.firstElementChild;
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continue;
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}
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for (var a = node.attributes.length - 1; a >= 0; a--) {
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var attr = node.attributes[a];
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var name = attr.nodeName;
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if (name.indexOf("i18n-") != 0) {
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continue;
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}
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name = name.substr(5); // "i18n-".length
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var value = t(attr.value);
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switch (name) {
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case "text":
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node.insertBefore(document.createTextNode(value), node.firstChild);
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break;
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case "html":
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node.insertAdjacentHTML("afterbegin", value);
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break;
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default:
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node.setAttribute(name, value);
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}
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node.removeAttribute(attr.nodeName);
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}
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}
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}
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function tDocLoader() {
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// localize HEAD
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tNodeList(document.all);
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// localize BODY
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const observer = new MutationObserver(function(mutations) {
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for (var m = 0; m < mutations.length; m++) {
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tNodeList(mutations[m].addedNodes);
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}
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});
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const onLoad = () => {
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tDocLoader.stop();
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tNodeList(document.all);
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};
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tDocLoader.start = () => {
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observer.observe(document, {subtree: true, childList: true});
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};
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tDocLoader.stop = () => {
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observer.disconnect();
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document.removeEventListener('DOMContentLoaded', onLoad);
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};
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tDocLoader.start();
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document.addEventListener('DOMContentLoaded', onLoad);
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}
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