Support fast scrolling using a modifier key

src/common/services/OptionsService.ts

@@ -23,6 +23,8 @@ export const DEFAULT_OPTIONS: ITerminalOptions = Object.freeze({
   bellSound:  DEFAULT_BELL_SOUND,
   bellStyle: 'none',
   drawBoldTextInBrightColors: true,
+  fastScrollModifier: 'alt',
+  fastScrollSensitivity: 5,
   fontFamily: 'courier-new, courier, monospace',
   fontSize: 15,
   fontWeight: 'normal',

src/common/services/Services.ts

@@ -149,6 +149,8 @@ export interface IPartialTerminalOptions {
   cursorStyle?: 'block' | 'underline' | 'bar';
   disableStdin?: boolean;
   drawBoldTextInBrightColors?: boolean;
+  fastScrollModifier?: 'alt' | 'ctrl' | 'shift';
+  fastScrollSensitivity?: number;
   fontSize?: number;
   fontFamily?: string;
   fontWeight?: FontWeight;
@@ -178,6 +180,8 @@ export interface ITerminalOptions {
   cursorStyle: 'block' | 'underline' | 'bar';
   disableStdin: boolean;
   drawBoldTextInBrightColors: boolean;
+  fastScrollModifier: 'alt' | 'ctrl' | 'shift';
+  fastScrollSensitivity: number;
   fontSize: number;
   fontFamily: string;
   fontWeight: FontWeight;