Basic hover and inline hint of case 1 getting started

Author: laileni-aws

src/codewhisperer/commands/gettingStartedPageCommands.ts

@@ -8,6 +8,7 @@ import { showCodeWhispererWebview } from '../vue/backend'
 import { telemetry } from '../../shared/telemetry/telemetry'
 import { PromptSettings } from '../../shared/settings'
 import { CodeWhispererSource } from './types'
+import { Disposable, DocumentSelector, TextDocument, Position, InlayHint, InlayHintsProvider } from 'vscode'
 /**
  * The methods with backend logic for the Codewhisperer Getting Started Page commands.
  */
@@ -41,3 +42,89 @@ export class CodeWhispererCommandDeclarations implements CommandDeclarations<Cod
         ),
     } as const
 }
+
+let hintShown = false
+
+const myInlayHintsProvider: InlayHintsProvider = {
+    provideInlayHints(document: TextDocument): InlayHint[] {
+        const hints: InlayHint[] = []
+        const editor = vscode.window.activeTextEditor
+
+        if (hintShown || editor === undefined) {
+            return hints
+        }
+
+        const position = editor.selection.active
+        const line = editor.document.lineAt(position.line)
+
+        if (editor.document.getText().length === 0 || position.character === line.text.length) {
+            // Display hint at the beginning of the file for empty files
+            hints.push({
+                label: 'CodeWhisperer suggests code as you type or enter a new line, press TAB to accept',
+                position: new Position(0, 0),
+            })
+            hintShown = true
+        }
+        //    else {
+        //        if(position.character === line.text.length) {
+        //            // Cursor is at end of line
+        //            //hints.push({ label: 'This file is empty', position: new Position(0, 0) });
+        //            hints.push({ label: 'End of Line', position: editor.selection.active });
+        //            hintShown = true;
+        //        }
+        //    }
+
+        return hints
+    },
+}
+
+const documentSelector: DocumentSelector = ['*']
+
+const disposables: Disposable = vscode.languages.registerInlayHintsProvider(documentSelector, myInlayHintsProvider)
+
+let activeEditor = vscode.window.activeTextEditor
+
+vscode.window.onDidChangeActiveTextEditor(editor => {
+    activeEditor = editor
+})
+
+vscode.workspace.onDidChangeTextDocument(event => {
+    if (activeEditor && event.document === activeEditor.document) {
+        // Clear hints when text changes
+        disposables.dispose()
+        hintShown = false
+    }
+})
+
+vscode.extensions.onDidChange(() => {
+    disposables.dispose()
+})
+
+/**                    WORKING
+ * This Hover shows the suggestion for user to write down the comment
+ */
+
+export class EndOfLineHoverProvider implements vscode.HoverProvider {
+    provideHover(
+        document: vscode.TextDocument,
+        position: vscode.Position,
+        token: vscode.CancellationToken
+    ): vscode.Hover {
+        const line = document.lineAt(position.line)
+        if (position.character === line.text.length || document.getText().length === 0) {
+            // Cursor at end of line
+            return new vscode.Hover('CodeWhisperer suggests code as you type or enter a new line, press TAB to accept')
+        }
+        return new vscode.Hover('')
+    }
+}
+
+//Register this in extension
+
+const provider = new EndOfLineHoverProvider()
+
+const disposable: Disposable = vscode.languages.registerHoverProvider({ language: '*' }, provider)
+
+vscode.extensions.onDidChange(() => {
+    disposable.dispose()
+})