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background.html
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<html>
<head>
<script>
var openTC = function(tab) {
chrome.tabs.create({url: localStorage["server"]});
}
var openOptions = function(tab) {
chrome.tabs.create({url: chrome.extension.getURL("options.html")});
}
function init() {
function changeListeners(listener) {
chrome.browserAction.onClicked.removeListener(openTC);
chrome.browserAction.onClicked.removeListener(openOptions);
chrome.browserAction.onClicked.addListener(listener);
}
var server = localStorage["server"];
if(server) {
console.log("server loaded:", server);
if(server[server.length - 1] != "/") {
server = server + "/";
localStorage["server"] = server;
}
changeListeners(openTC);
statusChecker(server);
}
else {
setBadge("warning", "setup");
changeListeners(openOptions);
openOptions();
console.log("error: no server");
}
}
function setBadge(notification, text) {
var color = [0, 255, 0, 255];
if(notification == "warning") {
color = [255, 0, 255, 255];
} else if(notification == "error") {
color = [255, 0, 0, 255];
} else if(notification == "notice") {
color = [0, 0, 255, 255];
}
chrome.browserAction.setBadgeBackgroundColor({color:color});
if(text) {
chrome.browserAction.setBadgeText({text:text});
}
}
function statusChecker(server) {
function drawIconAtRotation() {
function ease(x) {
return (1-Math.sin(Math.PI/2+x*Math.PI))/2;
}
canvasContext.save();
canvasContext.clearRect(0, 0, canvas.width, canvas.height);
canvasContext.translate(Math.ceil(canvas.width/2), Math.ceil(canvas.height/2));
canvasContext.rotate(2*Math.PI*ease(rotation));
canvasContext.drawImage(icon,-Math.ceil(canvas.width/2),-Math.ceil(canvas.height/2));
canvasContext.restore();
chrome.browserAction.setIcon({imageData:canvasContext.getImageData(0, 0,
canvas.width,canvas.height)});
}
function animateFlip() {
var animationSpeed = 10;
var animationFrames = 36;
rotation = rotation + 1/animationFrames;
drawIconAtRotation();
if (rotation <= 1) {
setTimeout(animateFlip, animationSpeed);
} else {
rotation = 0;
drawIconAtRotation();
}
}
function checkNewBuilds(statuses) {
var lastBuild = localStorage["lastBuild"];
if(statuses.length > 0) {
var lastId = statuses[0].attributes["id"].value;
if(!lastBuild) {
lastBuild = lastId;
}
if(lastBuild != lastId) {
animateFlip();
for(var i=0; i<statuses.length; i++) {
var status = statuses[i];
if(status.attributes["id"].value == lastBuild) {
break;
}
else {
ajaxRequest(server + "app/rest/builds/id:" + lastId, buildDetails);
}
}
console.log("New build detected:", lastId);
}
localStorage["lastBuild"] = lastId;
}
}
function buildDetails(responseXML) {
var popupTimeout = 1000 * 5;
function getVal(name) {
return responseXML.getElementsByTagName(name)[0].firstChild.nodeValue
}
function getAttr(elName, attrName) {
return responseXML.getElementsByTagName(name)[0].attributes[attrName].value;
}
var build = {
id: getAttr("build", "id"),
status: getVal("statusText"),
url: getAttr("build", "webUrl"),
name: getAttr("buildType", "name"),
projectName: getAttr("buildType", "projectName"),
projectUrl: getAttr("buildType", "webUrl")
};
var builds = localStorage["builds"];
if(!builds) {
builds = [];
}
builds.push(build);
}
function success(responseXML) {
var statuses = responseXML.getElementsByTagName("build");
var count = 0;
var buildStatus = {};
for(var i=0; i < statuses.length; i++) {
var a = statuses[i].attributes;
var id = a["buildTypeId"].value;
if(buildStatus[id] == undefined) {
var status = a["status"].value;
buildStatus[id] = status;
if(status == "FAILURE" || status == "ERROR") {
count++;
}
}
}
if(count == 0) {
setBadge("success", "OK");
} else {
setBadge("error", count.toString());
}
checkNewBuilds(statuses);
requestFailureCount = 0;
}
var rotation = 0;
var canvas = document.getElementById("canvas");
var icon = document.getElementById("icon");
var canvasContext = canvas.getContext("2d");
animateFlip();
ajaxRequest(server + "app/rest/builds", success,
function() { setBadge("warning", "?"); }, true);
}
function ajaxRequest(url, onSuccess, onError, again) {
function scheduleRequest() {
var pollIntervalMin = 1000 * 60; // 1 minute
var pollIntervalMax = 1000 * 60 * 5; // 5 minutes
var randomness = Math.random() * 2;
var exponent = Math.pow(2, requestFailureCount);
var delay = Math.min(randomness * pollIntervalMin * exponent, pollIntervalMax);
delay = Math.round(delay);
console.log("Scheduling request:", delay, "ms");
window.setTimeout(startRequest, delay);
}
function startRequest() {
var requestTimeout = 1000 * 10; // 10 seconds
console.log("Starting request");
abortTimeoutId = window.setTimeout(function() {
console.log("aborting!");
req.abort();
}, requestTimeout);
console.log(" abort timer set:", requestTimeout, "ms");
req.open("GET", url, true);
req.send(null);
console.log(" GET request sent:", url);
}
function handleStateChange() {
try {
console.log(" state changed", this.readyState, this.status);
if(this.readyState == 4) { // finished
if(this.status == 200 && this.responseXML != null) { // success
console.log(" success!");
if(onSuccess) {
onSuccess(this.responseXML);
}
}
else { // failure
console.log(" error");
requestFailureCount++;
if(onError) {
onError();
}
}
if(abortTimeoutId) {
console.log(" abort timer cleared");
window.clearTimeout(abortTimeoutId);
}
if(again) {
scheduleRequest();
};
}
} catch(e) { }
}
var requestFailureCount = 0; // used for exponential backoff
var abortTimeoutId;
var req = new XMLHttpRequest();
req.onreadystatechange = handleStateChange;
startRequest();
}
</script>
</head>
<body onload="init()">
<img id="icon" src="icon19.png">
<canvas id="canvas" width="19" height="19">
</body>
</html>