designer/src/com/android/tools/idea/uibuilder/property/NlPropertiesModel.java

/*
 * Copyright (C) 2015 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.android.tools.idea.uibuilder.property;

import com.android.tools.idea.uibuilder.model.NlComponent;
import com.android.tools.idea.uibuilder.property.ptable.PTableItem;
import com.android.tools.idea.uibuilder.property.ptable.PTableModel;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.util.ui.UIUtil;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import java.util.Collections;
import java.util.List;

public class NlPropertiesModel extends PTableModel {
  @Nullable private NlComponent myComponent;
  private boolean myShowingExpertProperties;

  public void update(@NotNull List<NlComponent> selection, @Nullable final Runnable postUpdateRunnable) {
    // TODO: handle multiple selections: show properties common to all selections
    final NlComponent first = selection.isEmpty() ? null : selection.get(0);
    myComponent = first;
    if (first == null) {
      setItems(Collections.<PTableItem>emptyList());
      if (postUpdateRunnable != null) {
        postUpdateRunnable.run();
      }
      return;
    }

    // Obtaining the properties, especially the first time around on a big project
    // can take close to a second, so we do it on a separate thread..
    ApplicationManager.getApplication().executeOnPooledThread(new Runnable() {
      @Override
      public void run() {
        final List<NlProperty> properties = NlProperties.getInstance().getProperties(first);
        final List<PTableItem> groupedProperties = new NlPropertiesGrouper().group(properties, myComponent);
        final List<PTableItem> sortedProperties = new NlPropertiesSorter().sort(groupedProperties, myComponent);

        UIUtil.invokeLaterIfNeeded(new Runnable() {
          @Override
          public void run() {
            setItems(sortedProperties);
            if (postUpdateRunnable != null) {
              postUpdateRunnable.run();
            }
          }
        });
      }
    });
  }

  public boolean isShowingExpertProperties() {
    return myShowingExpertProperties;
  }

  public void setShowExpertProperties(boolean en) {
    myShowingExpertProperties = en;
  }
}