Add content script for check to playing video

Author: Stigmatoz

manifest.json

@@ -3,7 +3,7 @@
 
         "name": "Web Activity Time Tracker",
         "short_name": "Web Activity",
-        "version": "0.8.0",
+        "version": "0.8.1",
         "minimum_chrome_version": "26",
 
         "description": "Track your activity in the browser.",
@@ -23,10 +23,16 @@
             "idle",
             "chrome://favicon/*",
             "webNavigation",
-            "unlimitedStorage",
-            "<all_urls>"
+            "unlimitedStorage"
         ],
         "offline_enabled": true,
+        "content_scripts": [
+            {
+               "matches": ["http://*/*", "https://*/*"],
+               "js": ["scripts/contentScript.js"],
+               "run_at": "document_end"
+            }
+         ],
         "background": {
             "scripts": ["scripts/common.js", 
                         "scripts/storage.js", 

scripts/background.js

@@ -36,6 +36,7 @@ function backgroundCheck() {
 
                 if (tab !== undefined) {
                     activity.setCurrentActiveTab(tab.url);
+
                     chrome.idle.queryState(parseInt(setting_interval_inactivity), function (state) {
                         if (state === 'active') {
                             mainTRacker(activeUrl, tab, activeTab);
@@ -104,9 +105,12 @@ function isVideoPlayedOnPage() {
 
 function checkDOM(state, activeUrl, tab, activeTab) {
     if (state === 'idle') {
-        chrome.tabs.executeScript({ code: "var videoElement = document.getElementsByTagName('video')[0]; (videoElement !== undefined && videoElement.currentTime > 0 && !videoElement.paused && !videoElement.ended && videoElement.readyState > 2);" }, (results) => {
-            if (results !== undefined && results[0] !== undefined && results[0] === true)
-                mainTRacker(activeUrl, tab, activeTab);
+        chrome.tabs.query({ active: true, currentWindow: true }, function (tabs) {
+            chrome.tabs.sendMessage(tabs[0].id, { action: 'CHECK_VIDEO' }, function (response) {
+                if (response !== undefined && response.value !== undefined && response.value === true) {
+                    mainTRacker(activeUrl, tab, activeTab);
+                }
+            });
         });
     }
 }

scripts/contentScript.js

@@ -0,0 +1,20 @@
+//start connection in content script
+let contentPort = chrome.runtime.connect({
+    name: 'background-content'
+});
+
+//Listen for runtime message
+chrome.runtime.onMessage.addListener(function (message, sender, sendResponse) {
+    if (message.action === 'CHECK_VIDEO') {
+        var value = isVideoPlayedOnPage();
+        sendResponse({ value: value });
+    }
+});
+
+function isVideoPlayedOnPage() {
+    var videoElement = document.getElementsByTagName('video')[0];
+    if (videoElement !== undefined && videoElement.currentTime > 0 && !videoElement.paused && !videoElement.ended && videoElement.readyState > 2) {
+        return true;
+    }
+    else return false;
+}