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olegp/background.js

Created September 20, 2018 20:31
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Active tab change detection in Chrome Extension
Raw
background.js
let activeTabId, lastUrl, lastTitle;
function getTabInfo(tabId) {
chrome.tabs.get(tabId, function(tab) {
if(lastUrl != tab.url || lastTitle != tab.title)
console.log(lastUrl = tab.url, lastTitle = tab.title);
});
}
chrome.tabs.onActivated.addListener(function(activeInfo) {
getTabInfo(activeTabId = activeInfo.tabId);
});
chrome.tabs.onUpdated.addListener(function(tabId, changeInfo, tab) {
if(activeTabId == tabId) {
getTabInfo(tabId);
}
});
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