TypeScript undo-manager.UndoManager类代码示例

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本文整理汇总了TypeScript中@dataservices/virtualization/view-editor/command/undo-redo/undo-manager.UndoManager类的典型用法代码示例。如果您正苦于以下问题：TypeScript UndoManager类的具体用法？TypeScript UndoManager怎么用？TypeScript UndoManager使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

在下文中一共展示了UndoManager类的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的TypeScript代码示例。

示例1: it

  it( "shouldConvertToJsonCorrectly" , () => {
    const undoMgr = new UndoManager();

    // add update name command
    let cmd = CommandFactory.createUpdateViewNameCommand( "newName", "oldName");
    let undoable = CommandFactory.createUndoable( cmd as Command ) ;
    undoMgr.add( undoable as Undoable );

    // add update description command
    cmd = CommandFactory.createUpdateViewDescriptionCommand( "newDescription", "oldDescription");
    undoable = CommandFactory.createUndoable( cmd as Command ) ;
    undoMgr.add( undoable as Undoable );

    // should include both undoables
    expect( undoMgr.toJSON() ).not.toBe( null );
    expect( undoMgr.toJSON()[ UndoManager.undoables ] ).not.toBe( null );
    expect( undoMgr.toJSON()[ UndoManager.undoables ] instanceof Array ).toBe( true );

    const undoables = undoMgr.toJSON()[ UndoManager.undoables ] as Array< any >;
    expect( undoables.length ).toBe( 2 );

    // move the pointer to the left
    undoMgr.popUndoCommand();
    expect( undoMgr.toArray().length).toBe( 1 );
    expect( undoMgr.toArray().length).toBe( 1 );
  } );

开发者ID:tejones，项目名称:beetle-studio，代码行数:26，代码来源:undo-manager.spec.ts

示例2: expect

 expect( () => { undoMgr.peekRedoCommand(); } ).toThrow();

开发者ID:tejones，项目名称:beetle-studio，代码行数:1，代码来源:undo-manager.spec.ts

注：本文中的@dataservices/virtualization/view-editor/command/undo-redo/undo-manager.UndoManager类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。