BasePluginViewImpl.java

/*
 * Copyright 2014-2016 CyberVision, Inc.
 *
 * 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 org.kaaproject.kaa.server.admin.client.mvp.view.plugin;

import static org.kaaproject.kaa.server.admin.client.util.Utils.isNotBlank;

import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.user.client.ui.HasValue;
import com.google.gwt.user.client.ui.HasVerticalAlignment;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.ValueListBox;

import org.kaaproject.avro.ui.gwt.client.widget.AvroWidgetsConfig;
import org.kaaproject.avro.ui.gwt.client.widget.SizedTextArea;
import org.kaaproject.avro.ui.gwt.client.widget.SizedTextBox;
import org.kaaproject.avro.ui.shared.RecordField;
import org.kaaproject.kaa.server.admin.client.mvp.view.BasePluginView;
import org.kaaproject.kaa.server.admin.client.mvp.view.base.BaseDetailsViewImpl;
import org.kaaproject.kaa.server.admin.client.mvp.view.widget.KaaAdminSizedTextBox;
import org.kaaproject.kaa.server.admin.client.mvp.view.widget.PluginInfoListBox;
import org.kaaproject.kaa.server.admin.client.mvp.view.widget.RecordPanel;
import org.kaaproject.kaa.server.admin.client.util.Utils;
import org.kaaproject.kaa.server.admin.shared.plugin.PluginInfoDto;

public abstract class BasePluginViewImpl extends BaseDetailsViewImpl implements BasePluginView,
    ValueChangeHandler<RecordField> {

  private static final String REQUIRED = Utils.avroUiStyle.requiredField();

  private SizedTextBox name;
  private PluginInfoListBox pluginInfo;
  private SizedTextArea description;
  private SizedTextBox createdUsername;
  private SizedTextBox createdDateTime;
  private RecordPanel configuration;

  public BasePluginViewImpl(boolean create) {
    super(create);
  }

  @Override
  protected void initDetailsTable() {
    Label authorLabel = new Label(Utils.constants.author());
    createdUsername = new KaaAdminSizedTextBox(-1, false);
    createdUsername.setWidth(FULL_WIDTH);
    int idx = 0;
    detailsTable.setWidget(idx, 0, authorLabel);
    detailsTable.setWidget(idx, 1, createdUsername);

    authorLabel.setVisible(!create);
    createdUsername.setVisible(!create);

    createdDateTime = new KaaAdminSizedTextBox(-1, false);
    createdDateTime.setWidth(FULL_WIDTH);

    idx++;
    Label dateTimeCreatedLabel = new Label(Utils.constants.dateTimeCreated());
    detailsTable.setWidget(idx, 0, dateTimeCreatedLabel);
    detailsTable.setWidget(idx, 1, createdDateTime);

    dateTimeCreatedLabel.setVisible(!create);
    createdDateTime.setVisible(!create);

    name = new KaaAdminSizedTextBox(DEFAULT_TEXTBOX_SIZE);
    name.setWidth(FULL_WIDTH);
    Label nameLabel = new Label(Utils.constants.name());
    nameLabel.addStyleName(REQUIRED);
    idx++;
    detailsTable.setWidget(idx, 0, nameLabel);
    detailsTable.setWidget(idx, 1, name);
    name.addInputHandler(this);

    idx = initPluginDetails(idx);

    description = new SizedTextArea(1024);
    description.setWidth(FULL_WIDTH);
    description.getTextArea().getElement().getStyle().setPropertyPx("minHeight", 100);
    Label descriptionLabel = new Label(Utils.constants.description());
    idx++;
    detailsTable.setWidget(idx, 0, descriptionLabel);
    detailsTable.setWidget(idx, 1, description);
    detailsTable.getCellFormatter().setVerticalAlignment(6, 0, HasVerticalAlignment.ALIGN_TOP);
    description.addInputHandler(this);

    pluginInfo = new PluginInfoListBox();
    pluginInfo.setEnabled(create);
    pluginInfo.addValueChangeHandler(new ValueChangeHandler<PluginInfoDto>() {
      @Override
      public void onValueChange(ValueChangeEvent<PluginInfoDto> event) {
        updatePluginConfiguration(event.getValue());
      }
    });

    idx++;
    Label typeLabel = new Label(Utils.constants.type());
    detailsTable.setWidget(idx, 0, typeLabel);
    detailsTable.setWidget(idx, 1, pluginInfo);

    getFooter().addStyleName(Utils.kaaAdminStyle.bAppContentDetailsTable());
    getFooter().setWidth("1000px");

    configuration = new RecordPanel(new AvroWidgetsConfig.Builder()
        .recordPanelWidth(900).createConfig(),
        Utils.constants.configuration(), this, !create, false);
    configuration.addValueChangeHandler(this);
    getFooter().add(configuration);
    name.setFocus(true);
  }

  protected abstract int initPluginDetails(int idx);

  @Override
  protected void resetImpl() {
    name.setValue("");
    description.setValue("");
    createdUsername.setValue("");
    createdDateTime.setValue("");
    if (pluginInfo != null) {
      pluginInfo.setValue(null, true);
    }
    configuration.reset();
  }

  @Override
  protected boolean validate() {
    boolean result = isNotBlank(name.getValue());
    result &= configuration.validate();
    return result;
  }

  @Override
  public HasValue<String> getName() {
    return name;
  }

  @Override
  public RecordPanel getSchemaForm() {
    return configuration;
  }

  @Override
  public ValueListBox<PluginInfoDto> getPluginInfo() {
    return pluginInfo;
  }

  @Override
  public HasValue<String> getDescription() {
    return description;
  }

  @Override
  public HasValue<String> getCreatedUsername() {
    return createdUsername;
  }

  @Override
  public HasValue<String> getCreatedDateTime() {
    return createdDateTime;
  }

  @Override
  public HasValue<RecordField> getConfiguration() {
    return configuration;
  }

  private void updatePluginConfiguration(PluginInfoDto value) {
    configuration.setValue(value != null ? value.getFieldConfiguration() : null);
    fireChanged();
  }

  @Override
  public void onValueChange(ValueChangeEvent<RecordField> event) {
    fireChanged();
  }
}