refactored database loading and querying to background script

js/background.js

@@ -1,4 +1,6 @@
 updateBadge(true);
+var grades;
+loadDataBase()
 /* Handle messages and their commands from content and popup scripts*/
 chrome.runtime.onMessage.addListener(function (request, sender, response) {
     switch (request.command) {
@@ -31,6 +33,8 @@ chrome.runtime.onMessage.addListener(function(request, sender, response) {
         case "updateCourseList":
             updateTabs();
             break;
+        case "gradesQuery":
+            executeQuery(request.query, response);
         default:
             const xhr = new XMLHttpRequest();
             const method = request.method ? request.method.toUpperCase() : "GET";
@@ -88,6 +92,37 @@ chrome.runtime.onInstalled.addListener(function(details) {
 });
 
 
+function executeQuery(query, sendResponse) {
+    console.log(grades)
+    var res = grades.exec(query)[0];
+    sendResponse({
+        data: res,
+    });
+}
+
+
+/* Load the database*/
+function loadDataBase() {
+    sql = window.SQL;
+    loadBinaryFile('grades.db', function (data) {
+        var sqldb = new SQL.Database(data);
+        grades = sqldb;
+    });
+}
+/* load the database from file */
+function loadBinaryFile(path, success) {
+    var xhr = new XMLHttpRequest();
+    xhr.open("GET", chrome.extension.getURL(path), true);
+    xhr.responseType = "arraybuffer";
+    xhr.onload = function () {
+        var data = new Uint8Array(xhr.response);
+        var arr = new Array();
+        for (var i = 0; i != data.length; ++i) arr[i] = String.fromCharCode(data[i]);
+        success(arr.join(""));
+    };
+    xhr.send();
+};
+
 function updateBadge(first) {
     chrome.storage.sync.get('savedCourses', function (data) {
         if (data.savedCourses) {
@@ -268,7 +303,9 @@ function updateStatus(sendResponse) {
                 let c = courses[i];
                 let oldstatus = c.status;
                 let oldlink = c.link;
-                $.ajax({url: oldlink, success: function(result){
+                $.ajax({
+                    url: oldlink,
+                    success: function (result) {
                         if (result) {
                             console.log(result);
                             var object = $('<div/>').html(result).contents();
@@ -284,7 +321,9 @@ function updateStatus(sendResponse) {
                             nochange &= haschanged;
                             c.registerlink = registerlink;
                             c.status = newstatus;
-                }}});
+                        }
+                    }
+                });
 
 
             } catch (e) {

js/content.js

@@ -34,9 +34,6 @@ const butdelay = 75;
 
 console.log('UT Registration Plus is running on this page.');
 
-
-var utplanner = false;
-
 if (document.querySelector('#fos_fl')) {
 	let params = (new URL(document.location)).searchParams;
 	let dep = params.get("fos_fl");
@@ -58,18 +55,7 @@ if(next){
 		}
 	});
 }
-if($('html').hasClass('gr__utexas_collegescheduler_com')){
-	utplanner = true;
-	$.initialize("table.section-detail-grid", function() {
-	    $(this).find('thead>tr').append('<th> Plus</th')
-			$(this).find('tbody>tr').each(function(){
-				$(this).append(`<td data-th="Plus"><input type="image" class="distButton" id="distButton" style="vertical-align: bottom; display:block;" width="20" height="20" src='${chrome.extension.getURL('images/disticon.png')}'/></td>`);
-			})
-	});
-}
 
-
-loadDataBase();
 //make heading and modal
 if (!$("#kw_results_table").length) {
 	$("table thead th:last-child").after('<th scope=col>Plus</th>');
@@ -470,8 +456,12 @@ function getDistribution(sem) {
 		query += "and sem like '%" + sem + "%'";
 	}
 	query += "order by a1+a2+a3+b1+b2+b3+c1+c2+c3+d1+d2+d3+f desc";
-	var res = grades.exec(query)[0];
+	alert(query)
-	var output = "";
+	chrome.runtime.sendMessage({
+		command: "gradesQuery",
+		query: query
+	}, function (response) {
+		var res = response.data;
 		if (!sem) {
 			openDialog(department, coursename, "aggregate", profname, res);
 		} else {
@@ -483,14 +473,13 @@ function getDistribution(sem) {
 			}
 			setChart(data);
 		}
+	});
 }
 
 /*Open the modal and show all the data*/
 function openDialog(dep, cls, sem, professor, res) {
 	$("#myModal").fadeIn(fadetime);
 	//initial text on the "save course button"
-
-
 	chrome.runtime.sendMessage({
 		command: "alreadyContains",
 		unique: uniquenum
@@ -734,7 +723,9 @@ function getDescription() {
 	// console.log(window.location.href);
 	// console.log(profurl);
 	console.log('hello');
-	$.ajax({url: profurl, success: function(response){
+	$.ajax({
+		url: profurl,
+		success: function (response) {
 			if (response) {
 				console.log(profurl);
 				var output = "";
@@ -785,26 +776,6 @@ function getDescription() {
 				rmpLink = "http://www.ratemyprofessors.com/campusRatings.jsp?sid=1255";
 				eCISLink = "http://utdirect.utexas.edu/ctl/ecis/results/index.WBX?";
 			}
-  }});
 		}
-/* Load the database*/
-function loadDataBase() {
-	sql = window.SQL;
-	loadBinaryFile('grades.db', function (data) {
-		var sqldb = new SQL.Database(data);
-		grades = sqldb;
 	});
 }
-/* load the database from file */
-function loadBinaryFile(path, success) {
-	var xhr = new XMLHttpRequest();
-	xhr.open("GET", chrome.extension.getURL(path), true);
-	xhr.responseType = "arraybuffer";
-	xhr.onload = function () {
-		var data = new Uint8Array(xhr.response);
-		var arr = new Array();
-		for (var i = 0; i != data.length; ++i) arr[i] = String.fromCharCode(data[i]);
-		success(arr.join(""));
-	};
-	xhr.send();
-};

js/utplanner.js

@@ -0,0 +1,9 @@
+if ($('html').hasClass('gr__utexas_collegescheduler_com')) {
+    $.initialize("table.section-detail-grid", function () {
+        console.log('hello')
+        $(this).find('thead>tr').append('<th> Plus</th')
+        $(this).find('tbody>tr').each(function () {
+            $(this).append(`<td data-th="Plus"><input type="image" class="distButton" id="distButton" style="vertical-align: bottom;" width="20" height="20" src='${chrome.extension.getURL('images/disticon.png')}'/></td>`);
+        })
+    });
+}

manifest.json

@@ -9,15 +9,19 @@
     "declarativeContent",
     "storage",
     "*://*.utdirect.utexas.edu/apps/registrar/course_schedule/*",
-    "*://*.utexas.collegescheduler.com/terms/*/schedules/*",
+    "*://*.utexas.collegescheduler.com/*",
     "*://*.catalog.utexas.edu/ribbit/",
     "*://*.registrar.utexas.edu/schedules/*",
     "*://*.login.utexas.edu/login/*"
   ],
   "content_scripts": [{
     "css": ["css/styles.css"],
-    "js": ["js/moment.min.js", "js/sql-memory-growth.js", "js/highcharts.js", "js/jquery-3.3.1.min.js", "js/jquery.initialize.min.js", "js/content.js"],
+    "js": ["js/moment.min.js", "js/highcharts.js", "js/jquery-3.3.1.min.js", "js/jquery.initialize.min.js", "js/content.js"],
-    "matches": ["https://utdirect.utexas.edu/apps/registrar/course_schedule/*", "https://utexas.collegescheduler.com/terms/*"]
+    "matches": ["https://utdirect.utexas.edu/apps/registrar/course_schedule/*"]
+  }, {
+    "css": ["css/styles.css"],
+    "js": ["js/moment.min.js", "js/highcharts.js", "js/jquery-3.3.1.min.js", "js/jquery.initialize.min.js", "js/utplanner.js"],
+    "matches": ["https://utexas.collegescheduler.com/*"]
   }, {
     "css": ["css/styles.css"],
     "js": ["js/moment.min.js", "js/sql-memory-growth.js", "js/highcharts.js", "js/jquery-3.3.1.min.js", "js/import.js"],
@@ -27,7 +31,7 @@
     "grades.db", "images/disticon.png"
   ],
   "background": {
-    "scripts": ["js/jquery-3.3.1.min.js", "js/background.js", "js/moment.min.js"],
+    "scripts": ["js/jquery-3.3.1.min.js", "js/sql-memory-growth.js", "js/background.js", "js/moment.min.js"],
     "persistent": true
   },
   "browser_action": {