DeleteLine_Action.java

package jetbrains.mps.ide.editor.actions;

/*Generated by MPS */

import jetbrains.mps.workbench.action.BaseAction;
import javax.swing.Icon;
import com.intellij.openapi.actionSystem.AnActionEvent;
import java.util.Map;
import jetbrains.mps.nodeEditor.EditorComponent;
import jetbrains.mps.internal.collections.runtime.MapSequence;
import org.jetbrains.annotations.NotNull;
import jetbrains.mps.ide.editor.MPSEditorDataKeys;
import jetbrains.mps.openapi.editor.cells.EditorCell;
import com.intellij.featureStatistics.FeatureUsageTracker;
import jetbrains.mps.openapi.editor.cells.EditorCell_Collection;
import java.util.Queue;
import jetbrains.mps.internal.collections.runtime.QueueSequence;
import java.util.LinkedList;
import jetbrains.mps.nodeEditor.cellLayout.CellLayout_Vertical;
import jetbrains.mps.internal.collections.runtime.Sequence;
import java.util.List;
import org.jetbrains.mps.openapi.model.SNode;
import java.util.ArrayList;
import jetbrains.mps.openapi.editor.cells.CellLayout;
import jetbrains.mps.nodeEditor.cellLayout.CellLayout_Indent;
import jetbrains.mps.lang.smodel.generator.smodelAdapter.SNodeOperations;
import jetbrains.mps.smodel.adapter.structure.MetaAdapterFactory;
import jetbrains.mps.editor.runtime.cells.ReadOnlyUtil;
import jetbrains.mps.internal.collections.runtime.ListSequence;
import jetbrains.mps.openapi.editor.cells.CellTraversalUtil;
import jetbrains.mps.openapi.editor.cells.CellConditions;

public class DeleteLine_Action extends BaseAction {
  private static final Icon ICON = null;

  public DeleteLine_Action() {
    super("Delete Line", "", ICON);
    this.setIsAlwaysVisible(false);
    this.setExecuteOutsideCommand(false);
  }
  @Override
  public boolean isDumbAware() {
    return true;
  }
  @Override
  public boolean isApplicable(AnActionEvent event, final Map<String, Object> _params) {
    return EditorActionUtils.isWriteActionEnabled(((EditorComponent) MapSequence.fromMap(_params).get("editorComponent")), ((EditorComponent) MapSequence.fromMap(_params).get("editorComponent")).getSelectionManager().getSelection().getSelectedCells());
  }
  @Override
  public void doUpdate(@NotNull AnActionEvent event, final Map<String, Object> _params) {
    this.setEnabledState(event.getPresentation(), this.isApplicable(event, _params));
  }
  @Override
  protected boolean collectActionData(AnActionEvent event, final Map<String, Object> _params) {
    if (!(super.collectActionData(event, _params))) {
      return false;
    }
    {
      EditorComponent editorComponent = event.getData(MPSEditorDataKeys.EDITOR_COMPONENT);
      if (editorComponent != null && editorComponent.isInvalid()) {
        editorComponent = null;
      }
      MapSequence.fromMap(_params).put("editorComponent", editorComponent);
      if (editorComponent == null) {
        return false;
      }
    }
    {
      EditorCell p = event.getData(MPSEditorDataKeys.EDITOR_CELL);
      MapSequence.fromMap(_params).put("currentCell", p);
      if (p == null) {
        return false;
      }
    }
    return true;
  }
  @Override
  public void doExecute(@NotNull final AnActionEvent event, final Map<String, Object> _params) {
    FeatureUsageTracker.getInstance().triggerFeatureUsed("editing.deleteLine");
    if (((EditorCell) MapSequence.fromMap(_params).get("currentCell")) instanceof EditorCell_Collection) {
      EditorCell_Collection collection = (EditorCell_Collection) ((EditorCell) MapSequence.fromMap(_params).get("currentCell"));
      Queue<EditorCell_Collection> collections = QueueSequence.fromQueue(new LinkedList<EditorCell_Collection>());
      QueueSequence.fromQueue(collections).addLastElement(collection);
      while (QueueSequence.fromQueue(collections).isNotEmpty()) {
        EditorCell_Collection nextCollection = QueueSequence.fromQueue(collections).removeFirstElement();
        if (nextCollection.getCellLayout() instanceof CellLayout_Vertical) {
          return;
        }
        for (EditorCell childCell : Sequence.fromIterable(nextCollection)) {
          if (childCell instanceof EditorCell_Collection) {
            QueueSequence.fromQueue(collections).addLastElement((EditorCell_Collection) childCell);
          }
        }
      }
    }
    EditorCell current = ((EditorCell) MapSequence.fromMap(_params).get("currentCell"));
    List<SNode> nodesToDelete = new ArrayList<SNode>();
    EditorCell cellToSelect = null;
    while (true) {
      if (current.getParent() == null) {
        break;
      }
      CellLayout layout = current.getParent().getCellLayout();
      if (layout instanceof CellLayout_Indent) {
        SNode currentNode = current.getSNode();
        if (SNodeOperations.isInstanceOf(currentNode, MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc56b215L, "jetbrains.mps.baseLanguage.structure.Statement")) || (SNodeOperations.getNodeAncestor(currentNode, MetaAdapterFactory.getConcept(0xf3061a5392264cc5L, 0xa443f952ceaf5816L, 0xf8cc56b215L, "jetbrains.mps.baseLanguage.structure.Statement"), false, false) == null)) {
          EditorCell root = current.getRootParent();
          if (ReadOnlyUtil.isCellOrSelectionReadOnlyInEditor(((EditorComponent) MapSequence.fromMap(_params).get("editorComponent")), root)) {
            return;
          }
          ListSequence.fromList(nodesToDelete).addElement(current.getSNode());
          if (CellLayout_Indent.isNewLineAfter(root, current)) {
            cellToSelect = CellTraversalUtil.getNextLeaf(current, CellConditions.SELECTABLE);
          } else {
            cellToSelect = CellTraversalUtil.getNextLeaf(current.getParent().lastCell(), CellConditions.SELECTABLE);
          }
          break;
        }
      } else if (layout instanceof CellLayout_Vertical) {
        if (current.isBig()) {
          if (ReadOnlyUtil.isCellOrSelectionReadOnlyInEditor(((EditorComponent) MapSequence.fromMap(_params).get("editorComponent")), current)) {
            return;
          }
          ListSequence.fromList(nodesToDelete).addElement(current.getSNode());
          cellToSelect = CellTraversalUtil.getNextLeaf(current, CellConditions.SELECTABLE);
          break;
        }
      }
      current = current.getParent();
    }
    for (SNode nodeToDelete : nodesToDelete) {
      if ((nodeToDelete != null) && SNodeOperations.getParent(nodeToDelete) != null) {
        SNodeOperations.deleteNode(nodeToDelete);
      }
    }
    if (cellToSelect != null) {
      ((EditorComponent) MapSequence.fromMap(_params).get("editorComponent")).changeSelection(cellToSelect);
      cellToSelect.home();
    }
  }
}