first commit

inject-vimc.js

@@ -0,0 +1,46 @@
+"use strict";
+(async () => {
+  const browser_ = globalThis.browser && browser.runtime ? browser : chrome
+  const loadJS = (host) => {
+    const injector = location.protocol + `//${host}/lib/injector.js`;
+    const script = document.createElement('script');
+    script.src = injector;
+    return document.head.appendChild(script);
+  };
+  const queryVimiumC = () => {
+    return browser_.runtime.sendMessage('vimium-c@gdh1995.cn', { handler: 99 })
+  };
+  const knownHost = localStorage.vimiumCHost;
+  if (knownHost) {
+    const element = loadJS(knownHost)
+    try {
+      await new Promise((resolve, reject) => {
+        element.onload = () => { resolve(); element.remove() }
+        element.onerror = () => { reject(); element.remove() }
+      })
+      return
+    } catch { }
+    // maybe UUID changed
+  }
+  queryVimiumC().catch((err) => {
+    if ((err + "").includes("Receiving end does not exist")) {
+      return new Promise(resolve => {
+        setTimeout(() => {
+          resolve(queryVimiumC().catch((err2) => {
+            console.log("can not load vimium c: 2nd:", err2)
+          }))
+        }, 100)
+      })
+    } else {
+      console.log("can not load vimium c:", err)
+    }
+  }).then((res) => {
+    if (!res) {
+      return;
+    }
+    const { host } = res;
+    console.log("vimium c host:", host); // for example, log "d1ba02e9-ec90-46dc-8623-69e15961cc86"
+    localStorage.vimiumCHost = host; // cache it for further usages
+    loadJS(host);
+  });
+})();