Cite an article by pasting the DOI (#29994)

GitOrigin-RevId: a68af023b24fcf87bbc608395f2898df8e9b41a5

services/web/frontend/js/features/source-editor/extensions/autocomplete-on-paste.ts

@@ -0,0 +1,26 @@
+import { EditorView } from '@codemirror/view'
+import { startCompletion } from '@codemirror/autocomplete'
+import { ancestorNodeOfType } from '@/features/source-editor/utils/tree-operations/ancestors'
+import { containsDOI } from '../utils/doi'
+
+// open autocomplete when a DOI is pasted into a \cite argument
+export const autocompleteOnPaste = EditorView.domEventHandlers({
+  paste(event, view) {
+    const text = event.clipboardData?.getData('text/plain')
+    if (text && containsDOI(text)) {
+      const node = ancestorNodeOfType(
+        view.state,
+        view.state.selection.main.from,
+        'BibKeyArgument',
+        -1
+      )
+
+      if (node) {
+        // allow time for the pasted content to appear in the state
+        window.setTimeout(() => {
+          startCompletion(view)
+        })
+      }
+    }
+  },
+})

services/web/frontend/js/features/source-editor/extensions/index.ts

@@ -55,6 +55,7 @@ import { trackDetachedComments } from './track-detached-comments'
 import { reviewTooltip } from './review-tooltip'
 import { tooltipsReposition } from './tooltips-reposition'
 import { selectionListener } from '@/features/source-editor/extensions/selection-listener'
+import { autocompleteOnPaste } from '@/features/source-editor/extensions/autocomplete-on-paste'
 
 const moduleExtensions: Array<(options: Record<string, any>) => Extension> =
   importOverleafModules('sourceEditorExtensions').map(
@@ -174,4 +175,5 @@ export const createExtensions = (options: Record<string, any>): Extension[] => [
   fileTreeItemDrop(),
   tooltipsReposition(),
   selectionListener(options.setEditorSelection),
+  autocompleteOnPaste,
 ]

services/web/frontend/js/features/source-editor/utils/doi.ts

@@ -0,0 +1,4 @@
+const doiRe = /10\.\d{4,}\/\S+/
+
+export const containsDOI = (text: string) =>
+  doiRe.test(decodeURIComponent(text))