Manifest v3

background.js

@@ -1,52 +1,80 @@
 // Old and less strict DOI regex.
 // const doiRegex = "10.\\d{4,9}/[-._;()/:a-z0-9A-Z]+";
-const doiRegex = new RegExp(
-    /\b(10[.][0-9]{4,}(?:[.][0-9]+)*\/(?:(?!["&\'<>])\S)+)\b/
-);
+const doiRegex = /\b(10[.][0-9]{4,}(?:[.][0-9]+)*\/(?:(?!["&'<>])\S)+)\b/;
 const nexusUrl = "https://standard--template--construct-org.ipns.dweb.link/#/nexus_science/doi:";
 const trueRed = "#BC243C";
 
-function resetBadgeText() {
-    browser.browserAction.setBadgeText({ text: "" });
+async function openTab(doi) {
+    await browser.tabs.create({
+        url: nexusUrl + doi,
+    });
+}
+
+async function onNexusContextClick(info, tab) {
+    // if right-clicked on link, then parse link address first
+    let doi = info.linkUrl;
+    doi = doi ? doi.match(doiRegex)[0].split(";")[0] : doi;
+    // if link not valid, try the highlighted text
+    if (!doi) {
+        doi = info.selectionText;
+    }
+
+    await openTab(doi);
 }
 
-function getHtml(htmlSource) {
-    htmlSource = htmlSource[0];
-    foundRegex = htmlSource.match(doiRegex);
-    if (foundRegex) {
-        var doi = foundRegex[0].split(";")[0];
-        doi = doi.replace(/\.pdf/, "");
-        var destUrl = nexusUrl + doi;
-        // console.log("Regex: " + foundRegex);
-        var creatingTab = browser.tabs.create({
-            url: destUrl,
-        });
-        creatingTab.then();
-    } else {
-        browser.browserAction.setBadgeTextColor({ color: "white" });
-        browser.browserAction.setBadgeBackgroundColor({ color: trueRed });
-        browser.browserAction.setBadgeText({ text: ":'(" });
+async function onMessage(request, sender, sendResponse) {
+    console.log(request);
+    if (request.openTab) {
+        await openTab(request.openTab);
+    } else if (request.fail) {
+        await browser.action.setBadgeTextColor({color: "white"});
+        await browser.action.setBadgeBackgroundColor({color: trueRed});
+        await browser.action.setBadgeText({text: ":'("});
     }
 }
 
-function executeJs() {
-    const executing = browser.tabs.executeScript({
-        code: "document.body.innerHTML",
+async function onExtensionClick(tab) {
+    await browser.scripting.executeScript({
+        target: {tabId: tab.id},
+        func: async () => {
+            if (typeof browser === "undefined") {
+                browser = chrome;
+            }
+
+            const foundRegex = document.body.innerHTML.match(/\b(10[.][0-9]{4,}(?:[.][0-9]+)*\/(?:(?!["&'<>])\S)+)\b/);
+            if (foundRegex) {
+                let doi = foundRegex[0].split(";")[0];
+                doi = doi.replace(/\.pdf/, "");
+                await browser.runtime.sendMessage({openTab: doi});
+            } else {
+                await browser.runtime.sendMessage({fail: true});
+            }
+        }
     });
-    executing.then(getHtml);
 }
 
+async function resetBadgeText() {
+    await browser.action.setBadgeText({text: ""});
+}
+
+
+if (typeof browser === "undefined") {
+    browser = chrome;
+}
+
+// add nexus option to context menu (right click)
 browser.contextMenus.create({
-    id: "doi-selection",
-    title: "Find article by DOI!",
-    contexts: ["selection"],
+    id: "nexus-doi-selection",
+    title: "Find article on Nexus!",
+    contexts: ["selection", "link"],
 });
 
-browser.contextMenus.onClicked.addListener((info, tab) => {
-    var creatingTab = browser.tabs.create({
-        url: nexusUrl + info.selectionText,
-    });
-});
+// when nexus option in context menu is clicked
+browser.contextMenus.onClicked.addListener(onNexusContextClick);
+
+// when extension toolbar icon is clicked
+browser.action.onClicked.addListener(onExtensionClick);
+
+browser.runtime.onMessage.addListener(onMessage);
 
-browser.browserAction.onClicked.addListener(executeJs);
 browser.tabs.onUpdated.addListener(resetBadgeText);