// Copyright 2010 Google Inc. All Rights Reseved.
//
// 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.google.testing.testify.risk.frontend.client.view.impl;
import com.google.common.collect.Lists;
import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ChangeEvent;
import com.google.gwt.event.dom.client.ChangeHandler;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.uibinder.client.UiHandler;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.Anchor;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;
import com.google.testing.testify.risk.frontend.client.view.DataRequestView;
import com.google.testing.testify.risk.frontend.client.view.widgets.ConstrainedParameterWidget;
import com.google.testing.testify.risk.frontend.client.view.widgets.CustomParameterWidget;
import com.google.testing.testify.risk.frontend.client.view.widgets.DataRequestParameterWidget;
import com.google.testing.testify.risk.frontend.model.DataRequestOption;
import java.util.List;
// TODO(chrsmith): Provide a readonly mode for non-editor users.
/**
* Widget for displaying a DataRequest.
*
* @author chrsmith@google.com (Chris Smith)
*/
public class DataRequestViewImpl extends Composite implements DataRequestView {
/** Wire parent class to associated UI Binder. */
interface DataRequestViewImplUiBinder extends UiBinder<Widget, DataRequestViewImpl> {}
private static final DataRequestViewImplUiBinder uiBinder =
GWT.create(DataRequestViewImplUiBinder.class);
@UiField
protected Label dataRequestSourceName;
@UiField
protected VerticalPanel dataRequestParameters;
@UiField
protected Anchor addParameterLink;
@UiField
protected Button updateDataRequest;
@UiField
protected Button cancelUpdateDataRequest;
@UiField
protected Image deleteDataRequestImage;
/** List of allowable values for a parameter key. null if arbitrary keys allowed. */
private final List<String> parameterKeyConstraint = Lists.newArrayList();
/** Presenter associated with this View */
private Presenter presenter;
public DataRequestViewImpl() {
initWidget(uiBinder.createAndBindUi(this));
}
/** When the user clicks the 'add parameter' link, add a new parameter to the end of the list. */
@UiHandler("addParameterLink")
protected void handleAddParameterLinkClick(ClickEvent event) {
dataRequestParameters.add((Widget) createRequestWidget("", ""));
}
@UiHandler("updateDataRequest")
void onUpdateDataRequestClicked(ClickEvent event) {
// Gather up all parameters and notify the presenter.
List<DataRequestOption> newOptions = Lists.newArrayList();
for (Widget widget : dataRequestParameters) {
DataRequestParameterWidget parameterWidget = (DataRequestParameterWidget) widget;
newOptions.add(new DataRequestOption(parameterWidget.getParameterKey(),
parameterWidget.getParameterValue()));
}
presenter.onUpdate(newOptions);
}
@UiHandler("cancelUpdateDataRequest")
void onCancelUpdateDataRequestClicked(ClickEvent event) {
presenter.refreshView();
}
/**
* Handler for the deleteComponentImage's click event, removing the Component.
*/
@UiHandler("deleteDataRequestImage")
void onDeleteComponentImageClicked(ClickEvent event) {
String promptText = "Are you sure you want to remove this data request?";
if (Window.confirm(promptText)) {
presenter.onRemove();
}
}
/**
* Initialize this View's Presenter object. (For two-way communication.)
*/
@Override
public void setPresenter(Presenter presenter) {
this.presenter = presenter;
}
@Override
public Widget asWidget() {
return this;
}
/**
* Hides the given Widget, equivalent to setVisible(false).
*/
@Override
public void hide() {
this.setVisible(false);
}
@Override
public void setDataSourceName(String dataSourceName) {
dataRequestSourceName.setText(dataSourceName);
}
private DataRequestParameterWidget createRequestWidget(String name, String value) {
final DataRequestParameterWidget param;
if (parameterKeyConstraint != null) {
param = new ConstrainedParameterWidget(parameterKeyConstraint, name, value);
} else {
param = new CustomParameterWidget(name, value);
}
param.addChangeHandler(new ChangeHandler() {
@Override
public void onChange(ChangeEvent arg0) {
Widget w = (Widget) param;
dataRequestParameters.remove(w);
}
});
return param;
}
@Override
public void setDataSourceParameters(List<String> keyValues, List<DataRequestOption> options) {
parameterKeyConstraint.clear();
parameterKeyConstraint.addAll(keyValues);
dataRequestParameters.clear();
for (DataRequestOption option : options) {
dataRequestParameters.add((Widget) createRequestWidget(option.getName(), option.getValue()));
}
// If there are no parameters already, add a blank line to encourage them to add some.
if (options.size() < 1) {
handleAddParameterLinkClick(null);
}
}
}