Move InputHandler into common

Part of #2749
Part of #1507

src/common/services/CharsetService.ts

@@ -10,22 +10,23 @@ export class CharsetService implements ICharsetService {
   public serviceBrand: any;
 
   public charset: ICharset | undefined;
-  public charsets: ICharset[] = [];
   public glevel: number = 0;
 
+  private _charsets: (ICharset | undefined)[] = [];
+
   public reset(): void {
     this.charset = undefined;
-    this.charsets = [];
+    this._charsets = [];
     this.glevel = 0;
   }
 
   public setgLevel(g: number): void {
     this.glevel = g;
-    this.charset = this.charsets[g];
+    this.charset = this._charsets[g];
   }
 
-  public setgCharset(g: number, charset: ICharset): void {
-    this.charsets[g] = charset;
+  public setgCharset(g: number, charset: ICharset | undefined): void {
+    this._charsets[g] = charset;
     if (this.glevel === g) {
       this.charset = charset;
     }

src/common/services/Services.ts

@@ -98,7 +98,6 @@ export interface ICharsetService {
 
   charset: ICharset | undefined;
   readonly glevel: number;
-  readonly charsets: ReadonlyArray<ICharset>;
 
   reset(): void;
 
@@ -113,7 +112,7 @@ export interface ICharsetService {
    * @param g
    * @param charset
    */
-  setgCharset(g: number, charset: ICharset): void;
+  setgCharset(g: number, charset: ICharset | undefined): void;
 }
 
 export const IDirtyRowService = createDecorator<IDirtyRowService>('DirtyRowService');