Examples of IUndoableOperation

org.eclipse.core.commands.operations.IUndoableOperation

IUndoableOperation defines an operation that can be executed, undone, and redone. Operations typically have fully defined parameters. That is, they are usually created after the user has been queried for any input needed to define the operation.

Operations determine their ability to execute, undo, or redo according to the current state of the application. They do not make decisions about their validity based on where they occur in the operation history. That is left to the particular operation history.
@since 3.1

Examples of org.eclipse.core.commands.operations.IUndoableOperation


  public boolean canExecute()
  {
    for (final Iterator it = _stepOperations.iterator(); it.hasNext();)
    {
      IUndoableOperation op = (IUndoableOperation) it.next();
      
      // fail fast
      if (!op.canExecute())
      {
        return false;
      }
    }

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Examples of org.eclipse.core.commands.operations.IUndoableOperation

  }


  public boolean canRedo() {
    for (final Iterator it = _stepOperations.iterator(); it.hasNext();)
    {
      IUndoableOperation op = (IUndoableOperation) it.next();
      
      // fail fast
      if (!op.canRedo())
      {
        return false;
      }
    }

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Examples of org.eclipse.core.commands.operations.IUndoableOperation

  }


  public boolean canUndo() {
    for (final Iterator it = _stepOperations.iterator(); it.hasNext();)
    {
      IUndoableOperation op = (IUndoableOperation) it.next();
      
      // fail fast
      if (!op.canUndo())
      {
        return false;
      }
    }

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Examples of org.eclipse.core.commands.operations.IUndoableOperation


  public void dispose() 
  {
    for (final Iterator it = _stepOperations.iterator(); it.hasNext();)
    {
      IUndoableOperation op = (IUndoableOperation) it.next();
      op.dispose();
    }
  }

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Examples of org.eclipse.core.commands.operations.IUndoableOperation


  public boolean canExecute()
  {
    for (final Iterator it = _stepOperations.iterator(); it.hasNext();)
    {
      IUndoableOperation op = (IUndoableOperation) it.next();
      
      // fail fast
      if (!op.canExecute())
      {
        return false;
      }
    }

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Examples of org.eclipse.core.commands.operations.IUndoableOperation

  }


  public boolean canRedo() {
    for (final Iterator it = _stepOperations.iterator(); it.hasNext();)
    {
      IUndoableOperation op = (IUndoableOperation) it.next();
      
      // fail fast
      if (!op.canRedo())
      {
        return false;
      }
    }

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Examples of org.eclipse.core.commands.operations.IUndoableOperation

  }


  public boolean canUndo() {
    for (final Iterator it = _stepOperations.iterator(); it.hasNext();)
    {
      IUndoableOperation op = (IUndoableOperation) it.next();
      
      // fail fast
      if (!op.canUndo())
      {
        return false;
      }
    }

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Examples of org.eclipse.core.commands.operations.IUndoableOperation


  public void dispose() 
  {
    for (final Iterator it = _stepOperations.iterator(); it.hasNext();)
    {
      IUndoableOperation op = (IUndoableOperation) it.next();
      op.dispose();
    }
  }

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Examples of org.eclipse.core.commands.operations.IUndoableOperation

    public void documentChanged(DocumentEvent event) {
      fPreservedRedoModificationStamp= event.getModificationStamp();


      // record the current valid state for the top operation in case it remains the
      // top operation but changes state.
      IUndoableOperation op= fHistory.getUndoOperation(fUndoContext);
      boolean wasValid= false;
      if (op != null)
        wasValid= op.canUndo();
      // Process the change, providing the before and after timestamps
      processChange(event.getOffset(), event.getOffset() + event.getLength(), event.getText(), fReplacedText, fPreservedUndoModificationStamp, fPreservedRedoModificationStamp);


      // now update fCurrent with the latest buffers from the document change.
      fCurrent.pretendCommit();

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Examples of org.eclipse.core.commands.operations.IUndoableOperation

    IUndoContext oldUndoContext= manager.getUndoContext();
    // Get the history for the old undo context.
    IUndoableOperation [] operations= OperationHistoryFactory.getOperationHistory().getUndoHistory(oldUndoContext);
    for (int i= 0; i < operations.length; i++) {
      // First replace the undo context
      IUndoableOperation op= operations[i];
      if (op instanceof IContextReplacingOperation) {
        ((IContextReplacingOperation)op).replaceContext(oldUndoContext, getUndoContext());
      } else {
        op.addContext(getUndoContext());
        op.removeContext(oldUndoContext);
      }
      // Now update the manager that owns the text edit.
      if (op instanceof UndoableTextChange) {
        ((UndoableTextChange)op).fDocumentUndoManager= this;
      }
    }


    IUndoableOperation op= OperationHistoryFactory.getOperationHistory().getUndoOperation(getUndoContext());
    if (op != null && !(op instanceof UndoableTextChange))
      return;


    // Record the transfer itself as an undoable change.
    // If the transfer results from some open operation, recording this change will

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