UBER-433: Allow tabs within bullets.

packages/text-editor/src/components/CollaborationDiffViewer.svelte

@@ -221,12 +221,6 @@
     white-space: nowrap;
   }
 
-  .code-block {
-    border: 1px solid var(--theme-divider-color);
-    border-radius: 4px;
-    padding: 0.5rem;
-  }
-
   cmark {
     border-top: 1px solid lightblue;
     border-bottom: 1px solid lightblue;

packages/text-editor/src/components/CollaboratorEditor.svelte

@@ -724,12 +724,6 @@
     white-space: nowrap;
   }
 
-  .code-block {
-    border: 1px solid var(--divider-color);
-    border-radius: 4px;
-    padding: 0.5rem;
-  }
-
   cmark {
     border-top: 1px solid lightblue;
     border-bottom: 1px solid lightblue;

packages/text-editor/src/components/StyledTextBox.svelte

@@ -120,7 +120,13 @@
       }
       return editable
     },
-    isFocus: () => focused
+    isFocus: () => focused,
+    canBlur: () => {
+      if (focused) {
+        return !textEditor.catHandleTab()
+      }
+      return true
+    }
   })
   const updateFocus = () => {
     if (focusIndex !== -1) {

packages/text-editor/src/components/StyledTextEditor.svelte

@@ -107,6 +107,14 @@
   export function insertText (text: string): void {
     textEditor.insertText(text)
   }
+  export function catHandleTab (): boolean {
+    return (
+      textEditor.checkIsActive('bulletList') ||
+      textEditor.checkIsActive('orderedList') ||
+      textEditor.checkIsActive('code') ||
+      textEditor.checkIsActive('codeBlock')
+    )
+  }
 
   $: varsStyle =
     maxHeight === 'card'

packages/text-editor/src/components/extensions.ts

@@ -6,12 +6,10 @@ import TableRow from '@tiptap/extension-table-row'
 import TaskItem from '@tiptap/extension-task-item'
 import TaskList from '@tiptap/extension-task-list'
 
-import Heading, { Level } from '@tiptap/extension-heading'
+import { Level } from '@tiptap/extension-heading'
 import Highlight from '@tiptap/extension-highlight'
 import StarterKit from '@tiptap/starter-kit'
 
-import Code from '@tiptap/extension-code'
-import TipTapCodeBlock from '@tiptap/extension-code-block'
 import Gapcursor from '@tiptap/extension-gapcursor'
 
 import { AnyExtension } from '@tiptap/core'
@@ -46,28 +44,29 @@ export const taskListExtensions = [
 export const headingLevels: Level[] = [1, 2, 3, 4, 5, 6]
 
 export const defaultExtensions: AnyExtension[] = [
-  StarterKit,
-  Highlight.configure({
-    multicolor: false
-  }),
-  TipTapCodeBlock.configure({
-    languageClassPrefix: 'language-',
-    exitOnArrowDown: true,
-    exitOnTripleEnter: true,
-    HTMLAttributes: {
-      class: 'code-block'
+  StarterKit.configure({
+    code: {
+      HTMLAttributes: {
+        class: 'proseCode'
+      }
+    },
+    codeBlock: {
+      languageClassPrefix: 'language-',
+      exitOnArrowDown: true,
+      exitOnTripleEnter: true,
+      HTMLAttributes: {
+        class: 'proseCodeBlock'
+      }
+    },
+    heading: {
+      levels: headingLevels
     }
   }),
-  Code.configure({
-    HTMLAttributes: {
-      class: 'proseCode'
-    }
+  Highlight.configure({
+    multicolor: false
   }),
   Typography.configure({}),
   Gapcursor,
-  Heading.configure({
-    levels: headingLevels
-  }),
   Link.configure({
     openOnClick: true,
     HTMLAttributes: { class: 'cursor-pointer', rel: 'noopener noreferrer', target: '_blank' }

packages/theme/styles/prose.scss

@@ -54,3 +54,11 @@ table.proseTable {
   border: 1px solid var(--theme-button-border);
   border-radius: .25rem;
 }
+
+.proseCodeBlock {
+  font-family: var(--mono-font);
+  background-color: var(--theme-button-enabled);
+  border: 1px solid var(--theme-button-border);
+  border-radius: .25rem;
+  padding: 0.5rem;  
+}

packages/ui/src/focus.ts

@@ -20,11 +20,12 @@ class FocusManagerImpl implements FocusManager {
     order: number
     focus: () => boolean
     isFocus: () => boolean
+    canBlur?: () => boolean
   }> = []
 
   current = 0
-  register (order: number, focus: () => boolean, isFocus: () => boolean): number {
-    const el = { id: this.counter++, order, focus, isFocus }
+  register (order: number, focus: () => boolean, isFocus: () => boolean, canBlur?: () => boolean): number {
+    const el = { id: this.counter++, order, focus, isFocus, canBlur }
     this.elements.push(el)
     this.sort()
     return el.id
@@ -43,6 +44,10 @@ class FocusManagerImpl implements FocusManager {
   }
 
   next (inc?: 1 | -1): void {
+    const current = this.elements[this.current]
+    if (!(current?.canBlur?.() ?? false)) {
+      return
+    }
     while (true) {
       this.current = this.current + (inc ?? 1)
       if (this.elements[Math.abs(this.current) % this.elements.length].focus()) {
@@ -116,13 +121,13 @@ export function getFocusManager (): FocusManager | undefined {
  */
 export function registerFocus (
   order: number,
-  item: { focus: () => boolean, isFocus: () => boolean }
+  item: { focus: () => boolean, isFocus: () => boolean, canBlur?: () => boolean }
 ): { idx: number, focusManager?: FocusManager } {
   const focusManager = getFocusManager() as FocusManagerImpl
   if (order === -1) {
     return { idx: -1, focusManager }
   }
-  const idx = focusManager?.register(order, item.focus, item.isFocus) ?? -1
+  const idx = focusManager?.register(order, item.focus, item.isFocus, item.canBlur) ?? -1
   if (idx !== -1) {
     onDestroy(() => {
       focusManager.unregister(idx)