feat: 增加批量执行命令

src/cmd/CommandInitializer.ts

@@ -0,0 +1,19 @@
+import type EventBus from 'diagram-js/lib/core/EventBus'
+import type CommandStack from 'diagram-js/lib/command/CommandStack'
+import type CommandHandler from 'diagram-js/lib/command/CommandHandler'
+import MultiCommandHandler from './MultiCommandHandler'
+
+const HANDLERS: Record<string, CommandHandler> = {
+  'panel.multi-command': MultiCommandHandler
+}
+
+export default class CommandInitializer {
+  static $inject: string[]
+  constructor(eventBus: EventBus, commandStack: CommandStack) {
+    eventBus.on('diagram.init', function () {
+      Object.keys(HANDLERS).forEach((id: string) => commandStack.registerHandler(id, HANDLERS[id]))
+    })
+  }
+}
+
+CommandInitializer.$inject = ['eventBus', 'commandStack']

src/cmd/index.ts

@@ -0,0 +1,5 @@
+import CommandInitializer from './CommandInitializer'
+
+export default {
+  __init__: [CommandInitializer]
+}

types/declares/diagram.d.ts

@@ -753,19 +753,19 @@ declare module 'diagram-js/lib/command/CommandStack' {
 declare module 'diagram-js/lib/command/CommandHandler' {
   import { Base } from 'diagram-js/lib/model'
 
-  export default abstract class CommandHandler {
-    abstract execute<E extends Base>(context: Object): E[]
-    abstract revert<E extends Base>(context: Object): E[]
-    abstract canExecute(context: Object): boolean
-    abstract preExecute(context: Object): void
-    abstract postExecute(context: Object): void
+  export default class CommandHandler {
+    execute<E extends Base>(context: Object): E[]
+    revert<E extends Base>(context: Object): E[]
+    canExecute(context: Object): boolean
+    preExecute(context: Object): void
+    postExecute(context: Object): void
   }
 }
 // CommandHandler 实现类 的一个验证和扩展程序
 declare module 'diagram-js/lib/command/CommandInterceptor' {
   import EventBus from 'diagram-js/lib/core/EventBus'
 
-  export default abstract class CommandInterceptor {
+  export default class CommandInterceptor {
     protected constructor(eventBus: EventBus)
     on(
       events: Function | number | string | string[],