Add manifest v2 extension

.idea/SearchSwitch.iml

@@ -9,5 +9,7 @@
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
     <orderEntry type="library" name="@types/chrome" level="application" />
+    <orderEntry type="library" name="@types/firefox" level="application" />
+    <orderEntry type="library" name="@types/jquery" level="application" />
   </component>
 </module>

.idea/jsLibraryMappings.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="JavaScriptLibraryMappings">
-    <file url="PROJECT" libraries="{@types/chrome}" />
+    <file url="PROJECT" libraries="{@types/chrome, @types/firefox, @types/jquery}" />
+    <includedPredefinedLibrary name="HTTP Response Handler" />
   </component>
 </project>

v2/background.js

@@ -0,0 +1,53 @@
+function switchSearch(tab) {
+    const bingSearch = "https://www.bing.com/search?q=";
+    const googleSearch = "https://www.google.com/search?q=";
+
+    const bingImageSearch = "https://www.bing.com/images/search?q="
+    const googleImageSearchSubstring = "&tbm=isch";
+    const url = tab.url;
+
+    let newURL;
+    let removeEngine;
+    let searchEnd;
+    let justSearch;
+    //Handle bing searches
+    if (url.substring(0, bingSearch.length) === bingSearch) {
+        removeEngine = url.slice(bingSearch.length);
+        searchEnd = removeEngine.indexOf('&');
+        justSearch = removeEngine.substring(0, searchEnd);
+
+        newURL = googleSearch + justSearch + '&';
+
+    }
+	//Handle Google image searches
+	else if (url.indexOf(googleImageSearchSubstring) > googleSearch.length) {
+		removeEngine = url.slice(googleSearch.length);
+		searchEnd = removeEngine.indexOf('&');
+		justSearch = removeEngine.substring(0, searchEnd);
+
+		newURL = bingImageSearch + justSearch + '&';
+	}
+    //Handle Google searches
+    else if (url.substring(0, googleSearch.length) === googleSearch) {
+        removeEngine = url.slice(googleSearch.length);
+        searchEnd = removeEngine.indexOf('&');
+        justSearch = removeEngine.substring(0, searchEnd);
+
+        newURL = bingSearch + justSearch + '&';
+    }
+    //Handle bing image searches
+    else if (url.substring(0, bingImageSearch.length) === bingImageSearch) {
+        removeEngine = url.slice(bingImageSearch.length)
+        searchEnd = removeEngine.indexOf('&');
+        justSearch = removeEngine.substring(0, searchEnd);
+
+        newURL = googleSearch + justSearch + googleImageSearchSubstring + '&';
+    }
+
+    return newURL;
+}
+
+chrome.browserAction.onClicked.addListener((tab) => {
+        chrome.tabs.update({url: switchSearch(tab)}).then(r => console.log(r))
+    }
+)

v2/manifest.json

@@ -0,0 +1,15 @@
+{
+    "name": "SearchSwitcher",
+    "version": "0.0.2",
+    "description": "Search switcher",
+    "manifest_version": 2,
+    "author": "Isaac Shoebottom",
+    "browser_action": {
+		"default_title": "Switch Search"
+	  },
+	  "permissions": ["activeTab", "scripting"],
+	  "background": {
+		"scripts": ["background.js"],
+        "persistent": false
+	  }
+}