promisify chrome.tabs.query as queryTabs()

.eslintrc

@@ -16,6 +16,7 @@ globals:
   URLS: false
   BG: false
   notifyAllTabs: false
+  queryTabs: false
   getTab: false
   getActiveTab: false
   getActiveTabRealURL: false

background.js

@@ -201,7 +201,7 @@ contextMenus = Object.assign({
     });
   };
 
-  chrome.tabs.query({}, tabs =>
+  queryTabs().then(tabs =>
     tabs.forEach(tab => {
       // skip lazy-loaded aka unloaded tabs that seem to start loading on message in FF
       if (!FIREFOX || tab.width) {

backup/fileSaveLoad.js

@@ -270,7 +270,7 @@ function importFromString(jsonString) {
   function refreshAllTabs() {
     return getActiveTab().then(activeTab => new Promise(resolve => {
       // list all tabs including chrome-extension:// which can be ours
-      chrome.tabs.query({}, tabs => {
+      queryTabs().then(tabs => {
         const lastTab = tabs[tabs.length - 1];
         for (const tab of tabs) {
           getStylesSafe({matchUrl: tab.url, enabled: true, asHash: true}).then(styles => {

edit.js

@@ -420,7 +420,7 @@ document.addEventListener("wheel", function(event) {
 	}
 });
 
-chrome.tabs.query({currentWindow: true}, function(tabs) {
+queryTabs({currentWindow: true}).then(tabs => {
 	var windowId = tabs[0].windowId;
 	if (prefs.get("openEditInWindow")) {
 		if (sessionStorage.saveSizeOnClose
@@ -1720,7 +1720,7 @@ function showRegExpTester(event, section = getSectionForChild(this)) {
 			chrome.tabs.onUpdated.removeListener(_);
 		}
 	});
-	chrome.tabs.query({}, tabs => {
+	queryTabs().then(tabs => {
 		const supported = tabs.map(tab => tab.url)
 			.filter(url => URLS.supported.test(url));
 		const unique = [...new Set(supported).values()];

messaging.js

@@ -75,8 +75,10 @@ function notifyAllTabs(msg) {
       }
     };
     // list all tabs including chrome-extension:// which can be ours
-    chrome.tabs.query(affectsOwnOriginOnly ? {url: URLS.ownOrigin + '*'} : {}, tabs => {
-      getActiveTab().then(activeTab => {
+    Promise.all([
+      queryTabs(affectsOwnOriginOnly ? {url: URLS.ownOrigin + '*'} : {}),
+      getActiveTab(),
+    ]).then(([tabs, activeTab]) => {
       const activeTabId = activeTab && activeTab.id;
       for (const tab of tabs) {
         if (tab.id === activeTabId) {
@@ -86,7 +88,6 @@ function notifyAllTabs(msg) {
         }
       }
     });
-    });
   }
   // notify self: the message no longer is sent to the origin in new Chrome
   if (typeof onRuntimeMessage != 'undefined') {
@@ -103,6 +104,13 @@ function notifyAllTabs(msg) {
 }
 
 
+function queryTabs(options = {}) {
+  return new Promise(resolve =>
+    chrome.tabs.query(options, tabs =>
+      resolve(tabs)));
+}
+
+
 function getTab(id) {
   return new Promise(resolve =>
     chrome.tabs.get(id, tab =>
@@ -111,9 +119,8 @@ function getTab(id) {
 
 
 function getActiveTab() {
-  return new Promise(resolve =>
-    chrome.tabs.query({currentWindow: true, active: true}, tabs =>
-      resolve(tabs[0])));
+  return queryTabs({currentWindow: true, active: true})
+    .then(tabs => tabs[0]);
 }
 
 
@@ -148,7 +155,7 @@ function openURL({url, currentWindow = true}) {
     // FF doesn't handle moz-extension:// URLs (bug)
     // API doesn't handle the hash-fragment part
     const urlQuery = url.startsWith('moz-extension') ? undefined : url.replace(/#.*/, '');
-    chrome.tabs.query({url: urlQuery, currentWindow}, tabs => {
+    queryTabs({url: urlQuery, currentWindow}).then(tabs => {
       for (const tab of tabs) {
         if (tab.url == url) {
           activateTab(tab).then(resolve);