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52 lines
1.9 KiB
52 lines
1.9 KiB
6 years ago
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const {classes: Cc, interfaces: Ci, utils: Cu} = Components;
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Cu.import("resource://gre/modules/Services.jsm");
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var disableSearchEngineInstall = false;
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var documentObserver = {
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observe: function observe(subject, topic, data) {
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if (subject instanceof Ci.nsIDOMWindow && topic == 'content-document-global-created') {
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var doc = subject.document;
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doc.addEventListener("DOMContentLoaded", function onLoad(event) {
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event.target.removeEventListener("DOMContentLoaded", onLoad, false);
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if (disableSearchEngineInstall) {
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subject.wrappedJSObject.external.AddSearchProvider = function() {};
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}
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if (!doc.documentURI.startsWith("about:")) {
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return;
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}
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for (let id in configs) {
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var config = configs[id];
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if (config.hiddenUI) {
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for (var i=0; i < config.hiddenUI.length; i++) {
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// Don't use .hidden since it doesn't work sometimes
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var style = doc.getElementById("cck2-hidden-style");
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if (!style) {
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style = doc.createElementNS("http://www.w3.org/1999/xhtml", "style");
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style.setAttribute("id", "cck2-hidden-style");
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style.setAttribute("type", "text/css");
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doc.documentElement.appendChild(style);
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}
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style.textContent = style.textContent + config.hiddenUI[i] + "{display: none !important;}";
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}
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}
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}
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}, false);
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}
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}
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}
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var configs = sendSyncMessage("cck2:get-configs")[0];
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for (var id in configs) {
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var config = configs[id];
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if (config.disableSearchEngineInstall) {
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disableSearchEngineInstall = true;
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break;
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}
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}
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Services.obs.addObserver(documentObserver, "content-document-global-created", false);
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addEventListener("unload", function() {
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Services.obs.removeObserver(documentObserver, "content-document-global-created", false);
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})
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