Implement a selection paste action in terminal

src/vs/workbench/contrib/terminal/browser/terminal.ts

@@ -423,6 +423,11 @@ export interface ITerminalInstance {
 	 */
 	paste(): Promise<void>;
 
+	/**
+	 * Focuses and pastes the contents of the selection clipboard into the terminal instance.
+	 */
+	pasteSelection(): Promise<void>;
+
 	/**
 	 * Send text to the terminal instance. The text is written to the stdin of the underlying pty
 	 * process (shell) of the terminal instance.

src/vs/workbench/contrib/terminal/browser/terminalActions.ts

@@ -291,6 +291,24 @@ export class TerminalPasteAction extends Action {
 	}
 }
 
+export class TerminalPasteSelectionAction extends Action {
+
+	public static readonly ID = TERMINAL_COMMAND_ID.PASTE_SELECTION;
+	public static readonly LABEL = localize(TerminalPasteSelectionAction.ID, "Paste selection into Active Terminal");
+	public static readonly SHORT_LABEL = localize(`${TerminalPasteSelectionAction.ID}.short`, "Paste Selection")
+
+	constructor(
+		id: string, label: string,
+		@ITerminalService private readonly _terminalService: ITerminalService
+	) {
+		super(id, label);
+	}
+
+	async run () {
+		this._terminalService.getActiveOrCreateInstance()?.pasteSelection();
+	}
+}
+
 export class SelectDefaultShellWindowsTerminalAction extends Action {
 
 	public static readonly ID = TERMINAL_COMMAND_ID.SELECT_DEFAULT_SHELL;

src/vs/workbench/contrib/terminal/browser/terminalInstance.ts

@@ -798,6 +798,14 @@ export class TerminalInstance extends Disposable implements ITerminalInstance {
 		this._xterm.paste(await this._clipboardService.readText());
 	}
 
+	public async pasteSelection(): Promise<void> {
+		if (!this._xterm) {
+			return;
+		}
+		this.focus();
+		this._xterm.paste(await this._clipboardService.readText("selection"));
+	}
+
 	public async sendText(text: string, addNewLine: boolean): Promise<void> {
 		// Normalize line endings to 'enter' press.
 		text = text.replace(TerminalInstance.EOL_REGEX, '\r');

src/vs/workbench/contrib/terminal/common/terminal.ts

@@ -474,6 +474,7 @@ export const enum TERMINAL_COMMAND_ID {
 	FOCUS_NEXT = 'workbench.action.terminal.focusNext',
 	FOCUS_PREVIOUS = 'workbench.action.terminal.focusPrevious',
 	PASTE = 'workbench.action.terminal.paste',
+	PASTE_SELECTION = 'workbench.action.terminal.pasteSelection',
 	SELECT_DEFAULT_SHELL = 'workbench.action.terminal.selectDefaultShell',
 	RUN_SELECTED_TEXT = 'workbench.action.terminal.runSelectedText',
 	RUN_ACTIVE_FILE = 'workbench.action.terminal.runActiveFile',