Add kitty keyboard setting

Fixes #286809

Author: Tyriar

src/vs/platform/terminal/common/terminal.ts

@@ -120,6 +120,7 @@ export const enum TerminalSettingId {
 	FontLigaturesEnabled = 'terminal.integrated.fontLigatures.enabled',
 	FontLigaturesFeatureSettings = 'terminal.integrated.fontLigatures.featureSettings',
 	FontLigaturesFallbackLigatures = 'terminal.integrated.fontLigatures.fallbackLigatures',
+	EnableKittyKeyboardProtocol = 'terminal.integrated.enableKittyKeyboardProtocol',
 
 	// Developer/debug settings
 

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

@@ -243,6 +243,9 @@ export class XtermTerminal extends Disposable implements IXtermTerminal, IDetach
 			},
 			ignoreBracketedPasteMode: config.ignoreBracketedPasteMode,
 			rescaleOverlappingGlyphs: config.rescaleOverlappingGlyphs,
+			vtExtensions: {
+				kittyKeyboard: config.enableKittyKeyboardProtocol
+			},
 			windowOptions: {
 				getWinSizePixels: true,
 				getCellSizePixels: true,
@@ -537,6 +540,7 @@ export class XtermTerminal extends Disposable implements IXtermTerminal, IDetach
 		this.raw.options.wordSeparator = config.wordSeparators;
 		this.raw.options.ignoreBracketedPasteMode = config.ignoreBracketedPasteMode;
 		this.raw.options.rescaleOverlappingGlyphs = config.rescaleOverlappingGlyphs;
+		this.raw.options.vtExtensions = { kittyKeyboard: config.enableKittyKeyboardProtocol };
 
 		this._updateSmoothScrolling();
 		if (this._attached) {

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

@@ -208,6 +208,7 @@ export interface ITerminalConfiguration {
 	smoothScrolling: boolean;
 	ignoreBracketedPasteMode: boolean;
 	rescaleOverlappingGlyphs: boolean;
+	enableKittyKeyboardProtocol: boolean;
 	fontLigatures?: {
 		enabled: boolean;
 		featureSettings: string;

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

@@ -562,7 +562,7 @@ const terminalConfiguration: IStringDictionary<IConfigurationPropertySchema> = {
 			localize('hideOnStartup.whenEmpty', "Only hide the terminal when there are no persistent sessions restored."),
 			localize('hideOnStartup.always', "Always hide the terminal, even when there are persistent sessions restored.")
 		],
-		default: 'never'
+		default: 'never',
 	},
 	[TerminalSettingId.HideOnLastClosed]: {
 		description: localize('terminal.integrated.hideOnLastClosed', "Whether to hide the terminal view when the last terminal is closed. This will only happen when the terminal is the only visible view in the view container."),
@@ -587,6 +587,16 @@ const terminalConfiguration: IStringDictionary<IConfigurationPropertySchema> = {
 		type: 'boolean',
 		default: true
 	},
+	[TerminalSettingId.EnableKittyKeyboardProtocol]: {
+		restricted: true,
+		markdownDescription: localize('terminal.integrated.enableKittyKeyboardProtocol', "Whether to enable the kitty keyboard protocol, which provides more detailed keyboard input reporting to the terminal."),
+		type: 'boolean',
+		default: false,
+		tags: ['experimental'],
+		experiment: {
+			mode: 'auto'
+		}
+	},
 	[TerminalSettingId.ShellIntegrationEnabled]: {
 		restricted: true,
 		markdownDescription: localize('terminal.integrated.shellIntegration.enabled', "Determines whether or not shell integration is auto-injected to support features like enhanced command tracking and current working directory detection. \n\nShell integration works by injecting the shell with a startup script. The script gives VS Code insight into what is happening within the terminal.\n\nSupported shells:\n\n- Linux/macOS: bash, fish, pwsh, zsh\n - Windows: pwsh, git bash\n\nThis setting applies only when terminals are created, so you will need to restart your terminals for it to take effect.\n\n Note that the script injection may not work if you have custom arguments defined in the terminal profile, have enabled {1}, have a [complex bash `PROMPT_COMMAND`](https://code.visualstudio.com/docs/editor/integrated-terminal#_complex-bash-promptcommand), or other unsupported setup. To disable decorations, see {0}", '`#terminal.integrated.shellIntegration.decorationsEnabled#`', '`#editor.accessibilitySupport#`'),