85 lines
2.2 KiB
JavaScript
85 lines
2.2 KiB
JavaScript
chrome.extension.sendRequest({name:"getStylesToApply"}, function(response) {
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response.forEach(applyStyle);
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});
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chrome.extension.onRequest.addListener(function(request, sender, sendResponse) {
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switch(request.name) {
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case "styleDeleted":
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removeStyle(request.id);
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sendResponse({});
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break;
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case "styleUpdated":
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removeStyle(request.style.id);
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//fallthrough
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case "styleAdded":
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if (request.style.enabled == "true") {
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chrome.extension.sendRequest({name: "getStyleApplies", style: request.style, url: location.href}, function(response) {
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if (response) {
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applyStyle(response);
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}
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});
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}
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sendResponse({});
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}
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});
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function removeStyle(id) {
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var e = document.getElementById("stylish-" + id);
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if (e) {
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e.parentNode.removeChild(e);
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}
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}
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function applyStyle(s) {
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var style = document.createElement("style");
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style.setAttribute("id", "stylish-" + s.id);
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style.setAttribute("class", "stylish");
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style.setAttribute("type", "text/css");
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style.appendChild(document.createTextNode(s.sections.filter(filterSection).map(function(section) {
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return section.code;
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}).join("\n")));
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if (document.head) {
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document.head.appendChild(style);
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} else {
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document.documentElement.appendChild(style);
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}
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}
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function filterSection(section) {
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// global
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if (!section.urls && !section.urlPrefixes && !section.domains && !section.regexps) {
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return true;
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}
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if (section.urls && section.urls.some(function(url) {
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return url == location.href;
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})) {
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return true;
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}
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if (section.urlPrefixes && section.urlPrefixes.some(function(urlPrefix) {
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return location.href.indexOf(urlPrefix) == 0;
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})) {
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return true;
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}
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if (section.domains) {
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var currentDomains = getDomains(location.href);
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if (section.domains.some(function(domain) {
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return currentDomains.indexOf(domain) >= 0;
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})) {
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return true;
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}
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}
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return section.regexps && section.regexps.some(function(regexp) {
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return (new RegExp(regexp)).test(location.href);
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});
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}
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function getDomains(url) {
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var d = /.*?:\/*([^\/]+)/.exec(url)[1];
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var domains = [d];
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while (d.indexOf(".") != -1) {
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d = d.substring(d.indexOf(".") + 1);
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domains.push(d);
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}
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return domains;
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}
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