ShowDifferencesWithModelOnDisk_Action.java

package jetbrains.mps.vcs.plugin;

/*Generated by MPS */

import jetbrains.mps.workbench.action.BaseAction;
import javax.swing.Icon;
import org.jetbrains.annotations.NotNull;
import com.intellij.openapi.actionSystem.AnActionEvent;
import java.util.Map;
import org.jetbrains.mps.openapi.model.SModel;
import jetbrains.mps.internal.collections.runtime.MapSequence;
import jetbrains.mps.extapi.persistence.FileDataSource;
import org.jetbrains.mps.openapi.model.EditableSModel;
import jetbrains.mps.ide.actions.MPSCommonDataKeys;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.actionSystem.CommonDataKeys;
import org.jetbrains.mps.openapi.persistence.DataSource;
import jetbrains.mps.persistence.PersistenceUtil;
import java.util.List;
import com.intellij.diff.contents.DiffContent;
import jetbrains.mps.internal.collections.runtime.ListSequence;
import java.util.ArrayList;
import jetbrains.mps.vcs.platform.integration.ModelDiffContent;
import com.intellij.diff.requests.DiffRequest;
import com.intellij.diff.requests.SimpleDiffRequest;
import com.intellij.diff.DiffManager;

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

  public ShowDifferencesWithModelOnDisk_Action() {
    super("Show Differences with Model on Disk", "", ICON);
    this.setIsAlwaysVisible(false);
    this.setExecuteOutsideCommand(false);
  }
  @Override
  public boolean isDumbAware() {
    return true;
  }
  @Override
  public void doUpdate(@NotNull AnActionEvent event, final Map<String, Object> _params) {
    setEnabledState(event.getPresentation(), ((SModel) MapSequence.fromMap(_params).get("model")).getSource() instanceof FileDataSource && ((SModel) MapSequence.fromMap(_params).get("model")) instanceof EditableSModel);
  }
  @Override
  protected boolean collectActionData(AnActionEvent event, final Map<String, Object> _params) {
    if (!(super.collectActionData(event, _params))) {
      return false;
    }
    {
      SModel p = event.getData(MPSCommonDataKeys.MODEL);
      MapSequence.fromMap(_params).put("model", p);
      if (p == null) {
        return false;
      }
      if (!(p instanceof EditableSModel) || p.isReadOnly()) {
        return false;
      }
    }
    {
      Project p = event.getData(CommonDataKeys.PROJECT);
      MapSequence.fromMap(_params).put("project", p);
      if (p == null) {
        return false;
      }
    }
    return true;
  }
  @Override
  public void doExecute(@NotNull final AnActionEvent event, final Map<String, Object> _params) {
    DataSource datasource = ((SModel) MapSequence.fromMap(_params).get("model")).getSource();
    assert datasource instanceof FileDataSource;
    SModel diskModel = PersistenceUtil.loadModel(((FileDataSource) datasource).getFile());
    List<DiffContent> contents = ListSequence.fromListAndArray(new ArrayList<DiffContent>(), new ModelDiffContent(diskModel), new ModelDiffContent(((SModel) MapSequence.fromMap(_params).get("model"))));
    List<String> titles = ListSequence.fromListAndArray(new ArrayList<String>(), "Disk", "Memory");
    DiffRequest request = new SimpleDiffRequest(((SModel) MapSequence.fromMap(_params).get("model")).getName() + "", contents, titles);
    DiffManager.getInstance().showDiff(((Project) MapSequence.fromMap(_params).get("project")), request);
  }
}