only report on loglevel debug, explain events

src/common/TestUtils.test.ts

@@ -37,6 +37,9 @@ export class MockCoreMouseService implements ICoreMouseService {
   reset(): void {}
   triggerMouseEvent(event: ICoreMouseEvent): boolean { return false; }
   onProtocolChange: IEvent<CoreMouseEventType> = new EventEmitter<CoreMouseEventType>().event;
+  explainEvents(events: CoreMouseEventType): {[event: string]: boolean} {
+    throw new Error('Method not implemented.');
+  }
 }
 
 export class MockCoreService implements ICoreService {

src/common/services/CoreMouseService.ts

@@ -292,6 +292,16 @@ export class CoreMouseService implements ICoreMouseService {
     return true;
   }
 
+  public explainEvents(events: CoreMouseEventType): {[event: string]: boolean} {
+    return {
+      DOWN: !!(events & CoreMouseEventType.DOWN),
+      UP: !!(events & CoreMouseEventType.UP),
+      DRAG: !!(events & CoreMouseEventType.DRAG),
+      MOVE: !!(events & CoreMouseEventType.MOVE),
+      WHEEL: !!(events & CoreMouseEventType.WHEEL)
+    };
+  }
+
   private _compareEvents(e1: ICoreMouseEvent, e2: ICoreMouseEvent): boolean {
     if (e1.col !== e2.col) return false;
     if (e1.row !== e2.row) return false;

src/common/services/Services.ts

@@ -47,6 +47,11 @@ export interface ICoreMouseService {
    * Event to announce changes in mouse tracking.
    */
   onProtocolChange: IEvent<CoreMouseEventType>;
+
+  /**
+   * Human readable version of mouse events.
+   */
+  explainEvents(events: CoreMouseEventType): {[event: string]: boolean};
 }
 
 export const ICoreService = createDecorator<ICoreService>('CoreService');