52 lines
1.5 KiB
JavaScript
52 lines
1.5 KiB
JavaScript
chrome.extension.sendMessage({method: "getStyles", url: getMeta("stylish-id-url") || location.href}, function(response) {
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if (response.length == 0) {
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sendEvent("styleCanBeInstalledChrome");
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} else {
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sendEvent("styleAlreadyInstalledChrome");
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}
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});
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function sendEvent(type) {
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var stylishEvent = document.createEvent("Events");
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stylishEvent.initEvent(type, false, false, document.defaultView, null);
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document.dispatchEvent(stylishEvent);
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}
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document.addEventListener("stylishInstallChrome", function() {
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getResource(getMeta("stylish-description"), function(name) {
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if (confirm(chrome.i18n.getMessage('styleInstall', [name]))) {
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getResource(getMeta("stylish-code-chrome"), function(code) {
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// check for old style json
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var json = JSON.parse(code);
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json.method = "saveStyle";
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chrome.extension.sendMessage(json, function(response) {
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sendEvent("styleInstalledChrome");
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});
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});
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getResource(getMeta("stylish-install-ping-url-chrome"));
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}
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});
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}, false);
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function getMeta(name) {
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var e = document.querySelector("link[rel='" + name + "']");
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return e ? e.getAttribute("href") : null;
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}
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function getResource(url, callback) {
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if (url.indexOf("#") == 0) {
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if (callback) {
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callback(document.getElementById(url.substring(1)).innerText);
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}
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return;
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}
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var xhr = new XMLHttpRequest();
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xhr.open("GET", url, true);
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xhr.onreadystatechange = function() {
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if (xhr.readyState == 4 && callback) {
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callback(xhr.responseText);
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}
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}
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xhr.send();
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}
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