Add eslint

.eslintignore

@@ -0,0 +1,6 @@
+node_modules/
+.bscode/
+.parcel-cache/
+.github/
+
+dist/

.eslintrc.json

@@ -0,0 +1,13 @@
+{
+    "env": {
+        "browser": true,
+        "es2021": true
+    },
+    "extends": "airbnb-base",
+    "parserOptions": {
+        "ecmaVersion": "latest",
+        "sourceType": "module"
+    },
+    "rules": {
+    }
+}

.github/workflows/lint.yml

@@ -0,0 +1,22 @@
+name: Linting
+
+on:
+  push:
+    branches:
+      - 'main'
+  pull_request:
+    branches:
+      - 'main'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: '18.x'
+      - name: Run eslint
+        run: npm i && npm run lint

index.js

@@ -1,18 +1,18 @@
-import '@logseq/libs'
+import '@logseq/libs';
 
-const graphDocument = window.parent.document
+const graphDocument = window.parent.document;
 
-const setDirAuto = (node) => node.setAttribute('dir', 'auto')
-const setDirAutoToAll = (nodes) => nodes.forEach((node) => setDirAuto(node))
+const setDirAuto = (node) => node.setAttribute('dir', 'auto');
+const setDirAutoToAll = (nodes) => nodes.forEach((node) => setDirAuto(node));
 
 const handleLeftRightKey = (e) => {
-  if (e.shiftKey || e.ctrlKey) return
-  if (!["ArrowRight", "ArrowLeft"].includes(e.code)) return
+  if (e.shiftKey || e.ctrlKey) return;
+  if (!['ArrowRight', 'ArrowLeft'].includes(e.code)) return;
 
-  const activeElement = graphDocument.activeElement
-  const activeElementEffectiveDirection = window.getComputedStyle(activeElement).direction
+  const { activeElement } = graphDocument;
+  const activeElementEffectiveDirection = window.getComputedStyle(activeElement).direction;
 
-  if (activeElementEffectiveDirection === 'ltr') return
+  if (activeElementEffectiveDirection === 'ltr') return;
 
   const commonKeyboardEventProperties = {
     bubbles: false,
@@ -21,65 +21,30 @@ const handleLeftRightKey = (e) => {
     ctrlKey: false,
     altKey: false,
     metaKey: false,
-  }
+  };
 
   const rightKeyCode = {
-    key: "ArrowRight",
+    key: 'ArrowRight',
     keyCode: 39,
-  }
+  };
 
   const leftKeyCode = {
-    key: "ArrowLeft",
+    key: 'ArrowLeft',
     keyCode: 37,
-  }
+  };
 
-  const swipedKeyCode = e.code == "ArrowRight" ? leftKeyCode : rightKeyCode;
+  const swipedKeyCode = e.code === 'ArrowRight' ? leftKeyCode : rightKeyCode;
 
-  const keyboardEvent = new KeyboardEvent("keydown", {
+  const keyboardEvent = new KeyboardEvent('keydown', {
     ...swipedKeyCode,
     ...commonKeyboardEventProperties,
-  })
+  });
 
+  // eslint-disable-next-line no-restricted-globals
   top?.dispatchEvent(keyboardEvent);
+  // eslint-disable-next-line no-restricted-globals
   top?.dispatchEvent(keyboardEvent);
-}
-
-const applyBidi = () => {
-  const cssSelector = 'div.ls-block:not([dir]), div.ls-page-title:not([dir])'
-
-  // initial run on whole document
-  setDirAutoToAll(graphDocument.querySelectorAll(cssSelector))
-
-  // Define the callback function
-  const processBlocks = (mutationsList, observer) => {
-    for(let mutation of mutationsList) {
-
-      if (mutation.type !== 'childList') continue;
-
-      for(let addedNode of mutation.addedNodes) {
-        if (addedNode.classList?.contains('ls-block')) setDirAuto(addedNode)
-
-        const subLsBlocks = addedNode.querySelectorAll(cssSelector)
-        setDirAutoToAll(subLsBlocks)
-      }
-    }
-  };
-
-  const observer = new MutationObserver(processBlocks);
-  observer.observe(graphDocument, { childList: true, subtree: true });
-}
-
-const applyCustomBidiStyle = () => {
-  logseq.provideStyle(customBidiStyle)
-}
-
-const main = (e) => {  
-  applyBidi()
-  applyCustomBidiStyle()
-  top?.addEventListener("keydown", handleLeftRightKey);
-}
-
-logseq.ready(main).catch(console.error)
+};
 
 const customBidiStyle = `
 .pr-2 {
@@ -296,4 +261,44 @@ blockquote {
     float: inline-end;
   }
 }
-`
+`;
+
+const applyBidi = () => {
+  const cssSelector = 'div.ls-block:not([dir]), div.ls-page-title:not([dir])';
+
+  // initial run on whole document
+  setDirAutoToAll(graphDocument.querySelectorAll(cssSelector));
+
+  // Define the callback function
+  const processBlocks = (mutationsList) => {
+    mutationsList.forEach((mutation) => {
+      if (mutation.type !== 'childList') return;
+
+      mutation.addedNodes.forEach((addedNode) => {
+        if (addedNode.classList?.contains('ls-block')) setDirAuto(addedNode);
+
+        const subLsBlocks = addedNode.querySelectorAll(cssSelector);
+        setDirAutoToAll(subLsBlocks);
+      });
+    });
+  };
+
+  const observer = new MutationObserver(processBlocks);
+  observer.observe(graphDocument, { childList: true, subtree: true });
+};
+
+const applyCustomBidiStyle = () => {
+  // eslint-disable-next-line no-undef
+  logseq.provideStyle(customBidiStyle);
+};
+
+const main = () => {
+  applyBidi();
+  applyCustomBidiStyle();
+
+  // eslint-disable-next-line no-restricted-globals
+  top?.addEventListener('keydown', handleLeftRightKey);
+};
+
+// eslint-disable-next-line no-undef, no-console
+logseq.ready(main).catch(console.error);