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var backgroundPage = null;

var stableRules = null;

var unstableRules = null;

var hostReg = /.*\/\/[^$/]*\//;

function e(id) {

return document.getElementById(id);

}

function toggleRuleLine(checkbox, ruleset) {

ruleset.active = checkbox.checked;

if (ruleset.active != ruleset.default_state) {

localStorage[ruleset.name] = ruleset.active;

} else {

delete localStorage[ruleset.name];

// purge the name from the cache so that this unchecking is persistent.

backgroundPage.ruleCache.remove(ruleset.name);

}

// Now reload the selected tab of the current window.

chrome.tabs.reload();

}

function createRuleLine(ruleset) {

// parent block for line

var line = document.createElement("div");

line.className = "rule checkbox";

// label "container"

var label = document.createElement("label");

// checkbox

var checkbox = document.createElement("input");

checkbox.type = "checkbox";

if (ruleset.active) {

checkbox.setAttribute("checked", "");

}

checkbox.onchange = function(ev) {

toggleRuleLine(checkbox, ruleset);

};

label.appendChild(checkbox);

// favicon (from chrome's cache)

var favicon = document.createElement("img");

favicon.src = "chrome://favicon/";

for (var i=0; i < ruleset.rules.length; i++) {

var host = hostReg.exec(ruleset.rules[i].to);

if (host) {

favicon.src += host[0];

break;

}

}

label.appendChild(favicon);

// label text

var text = document.createElement("span");

text.innerText = ruleset.name;

if (ruleset.note.length) {

text.title = ruleset.note;

}

label.appendChild(text);

line.appendChild(label);

return line;

}

function gotTab(tab) {

var rulesets = backgroundPage.activeRulesets.getRulesets(tab.id);

for (var r in rulesets) {

var listDiv = stableRules;

if (!rulesets[r].default_state) {

listDiv = unstableRules;

}

listDiv.appendChild(createRuleLine(rulesets[r]));

listDiv.style.position = "static";

listDiv.style.visibility = "visible";

}

}

document.addEventListener("DOMContentLoaded", function () {

backgroundPage = chrome.extension.getBackgroundPage();

stableRules = document.getElementById("StableRules");

unstableRules = document.getElementById("UnstableRules");

chrome.tabs.getSelected(null, gotTab);

// auto-translate all elements with i18n attributes

var elem = document.querySelectorAll("[i18n]");

for (var i=0; i < elem.length; i++) {

elem[i].innerHTML = chrome.i18n.getMessage(elem[i].getAttribute("i18n"));

}

// other translations

e("whatIsThis").setAttribute("title", chrome.i18n.getMessage("chrome_what_is_this_title"));

e("add-rule-link").addEventListener("click", addManualRule);

});

var escapeForRegex = function( value ) {

return value.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&");

};

function hide(elem) {

elem.style.display = "none";

}

function show(elem) {

elem.style.display = "block";

}

function addManualRule() {

chrome.tabs.getSelected(null, function(tab) {

hide(e("add-rule-link"));

show(e("add-new-rule-div"));

var newUrl = new URI(tab.url);

newUrl.scheme("https");

e("new-rule-host").value = newUrl.host();

var oldUrl = new URI(tab.url);

oldUrl.scheme("http");

var oldMatcher = "^" + escapeForRegex(oldUrl.scheme() + "://" + oldUrl.host() + "/");

e("new-rule-regex").value = oldMatcher;

var redirectPath = newUrl.scheme() + "://" + newUrl.host() + "/";

e("new-rule-redirect").value = redirectPath;

e("new-rule-name").value = "Manual rule for " + oldUrl.host();

e("add-new-rule-button").addEventListener("click", function() {

var params = {

host : e("new-rule-host").value,

redirectTo : e("new-rule-redirect").value,

urlMatcher : e("new-rule-regex").value

};

backgroundPage.addNewRule(params, function() {

location.reload();

});

});

e("cancel-new-rule").addEventListener("click", function() {

show(e("add-rule-link"));

hide(e("add-new-rule-div"));

});

e("new-rule-show-advanced-link").addEventListener("click", function() {

show(e("new-rule-advanced"));

hide(e("new-rule-regular-text"));

});

e("new-rule-hide-advanced-link").addEventListener("click", function() {

hide(e("new-rule-advanced"));

show(e("new-rule-regular-text"));

});

});

}