Only show "Jump to command definition" for right-click on command name (#36191)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
GitOrigin-RevId: 05811783a327fb641f6c677eaa1efeb8a87668fc

services/web/test/frontend/features/source-editor/utils/command-definitions/command-name-at-pos.test.ts

@@ -0,0 +1,47 @@
+import { LanguageSupport } from '@codemirror/language'
+import { EditorState } from '@codemirror/state'
+import { expect } from 'chai'
+import { commandNameAtPos } from '@/features/source-editor/utils/command-definitions/command-name-at-pos'
+import { LaTeXLanguage } from '@/features/source-editor/languages/latex/latex-language'
+
+const latex = new LanguageSupport(LaTeXLanguage)
+
+const makeState = (doc: string): EditorState =>
+  EditorState.create({ doc, extensions: [latex] })
+
+describe('commandNameAtPos', function () {
+  it('resolves the command name when the position is on the command', function () {
+    const doc = 'before \\mycmd{arg} after'
+    const state = makeState(doc)
+    const from = doc.indexOf('\\mycmd')
+    expect(commandNameAtPos(state, from)).to.equal('\\mycmd')
+    expect(commandNameAtPos(state, from + 3)).to.equal('\\mycmd')
+  })
+
+  it('resolves a known command name', function () {
+    const doc = 'some \\textbf{bold} text'
+    const state = makeState(doc)
+    expect(commandNameAtPos(state, doc.indexOf('\\textbf'))).to.equal(
+      '\\textbf'
+    )
+  })
+
+  it('returns null for a control symbol', function () {
+    const doc = 'linebreak \\\\ and \\% percent'
+    const state = makeState(doc)
+    expect(commandNameAtPos(state, doc.indexOf('\\\\'))).to.equal(null)
+    expect(commandNameAtPos(state, doc.indexOf('\\%'))).to.equal(null)
+  })
+
+  it('returns null on plain text', function () {
+    const doc = 'plain text \\mycmd{arg}'
+    const state = makeState(doc)
+    expect(commandNameAtPos(state, 0)).to.equal(null)
+  })
+
+  it("returns null inside a command's argument", function () {
+    const doc = '\\mycmd{argument}'
+    const state = makeState(doc)
+    expect(commandNameAtPos(state, doc.indexOf('argument') + 3)).to.equal(null)
+  })
+})