intermediate

packages/flutter_mozilla_components/android/src/main/assets/extensions/readability_extract/content.js

@@ -0,0 +1,47 @@
+const port = browser.runtime.connectNative("mozacReaderExtract");
+
+let domChanged = false;
+let lastContent = '';
+
+function parseContent() {
+  const article = window.parseReaderable(document);
+
+  if (article && lastContent !== article.textContent) {
+      port.postMessage(article);
+
+      lastContent = article.textContent;
+  }
+
+  domChanged = false;
+}
+
+port.onMessage.addListener((message) => {
+  if (message.action === "parseContent") {
+    if (domChanged) {
+      parseContent();
+    }
+  }
+});
+
+const observer = new MutationObserver(() => {
+  domChanged = true;
+});
+
+const observerConfig = {
+  childList: true,
+  subtree: true,
+  characterData: true,
+  attributes: false
+};
+
+// Wait for page to be fully loaded
+if (document.readyState === 'complete') {
+  parseContent();
+  observer.observe(document.body, observerConfig);
+} else {
+  window.addEventListener('load', parseContent);
+}
+
+window.addEventListener('unload', () => {
+  observer.disconnect();
+});

packages/flutter_mozilla_components/android/src/main/assets/extensions/readability_extract/manifest.json

@@ -0,0 +1,29 @@
+{
+  "manifest_version": 2,
+  "browser_specific_settings": {
+    "gecko": {
+      "id": "readability-extract@movenext.me"
+    }
+  },
+  "name": "Extract text of Websites",
+  "version": "1.0",
+  "content_scripts": [
+    {
+      "matches": ["<all_urls>"],
+      "js": [
+        "readability.min.js",
+        "content.js"
+      ]
+    }
+  ],
+  "permissions": [
+    "mozillaAddons",
+    "geckoViewAddons",
+    "nativeMessaging",
+    "nativeMessagingFromContent",
+    "storage",
+    "tabs",
+    "webNavigation",
+    "<all_urls>"
+  ]
+}

packages/flutter_mozilla_components/android/src/main/assets/extensions/readability_extract/readability.min.js

@@ -0,0 +1 @@
+../../../../../../javascript/readability/dist/readability.min.js