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contentScript.js
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contentScript.js
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const ytVideo = document.querySelector("video");
var vidState = "play";
var master = false;
ytVideo.addEventListener('play', () => {
vidState = "play";
sendMessage("play", { timeStamp: ytVideo.currentTime, vidState: vidState });
});
ytVideo.addEventListener('pause', () => {
vidState = "pause";
sendMessage("pause", { timeStamp: ytVideo.currentTime, vidState: vidState });
});
ytVideo.addEventListener('timeupdate', () => {
sendMessage("durationChange", { timeStamp: ytVideo.currentTime, vidState: vidState });
});
chrome.runtime.onMessage.addListener(function(request, sender, sendResponse) {
if (request.type == "changeVid") {
if (request.data.type == "playPause") {
if (request.data.vidState != vidState) {
if (request.data.vidState == "play") {
ytVideo.play();
} else {
ytVideo.pause();
}
}
} else {
if (Math.abs(request.data.timeStamp - ytVideo.currentTime) > 2.0) {
ytVideo.currentTime = request.data.timeStamp;
}
}
} else if (request.type == "setMaster") {
master = true;
}
});
var sendMessage = function(type, data, callback) {
if (callback) {
chrome.runtime.sendMessage({ type: type, data: data }, function(response) {
callback(response);
});
} else {
chrome.runtime.sendMessage({ type: type, data: data });
}
};