// 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.base.Function;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.KeyDownEvent;
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.Button;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.Widget;
import com.google.testing.testify.risk.frontend.client.event.WidgetsReorderedEvent;
import com.google.testing.testify.risk.frontend.client.event.WidgetsReorderedHandler;
import com.google.testing.testify.risk.frontend.client.presenter.AttributePresenter;
import com.google.testing.testify.risk.frontend.client.view.AttributesView;
import com.google.testing.testify.risk.frontend.client.view.widgets.SortableVerticalPanel;
import com.google.testing.testify.risk.frontend.model.Attribute;
import com.google.testing.testify.risk.frontend.model.Signoff;
import java.util.Collection;
import java.util.List;
import java.util.Map;
/**
* A widget for controlling the Attributes of a project.
*
* @author jimr@google.com (Jim Reardon)
*/
public class AttributesViewImpl extends Composite implements AttributesView {
interface AttributesViewImplUiBinder extends UiBinder<Widget, AttributesViewImpl> {}
private static final AttributesViewImplUiBinder uiBinder =
GWT.create(AttributesViewImplUiBinder.class);
@UiField
public SortableVerticalPanel<AttributeViewImpl> attributesPanel;
@UiField
public HorizontalPanel addNewAttributePanel;
@UiField
public TextBox newAttributeName;
@UiField
public Button addNewAttributeButton;
// Handle to the underlying Presenter corresponding to this View.
private Presenter presenter;
private boolean editingEnabled;
private final Collection<String> projectLabels = Lists.newArrayList();
private Map<Long, Boolean> signedOff = Maps.newHashMap();
private Map<Long, AttributePresenter> childPresenters = Maps.newHashMap();
/**
* Constructs a ProjectSettings object.
*/
public AttributesViewImpl() {
initWidget(uiBinder.createAndBindUi(this));
// When the widget list is reordered, notify the presenter.
attributesPanel.addWidgetsReorderedHandler(
new WidgetsReorderedHandler() {
@Override
public void onWidgetsReordered(WidgetsReorderedEvent event) {
List<Long> attributeIDs = Lists.newArrayList();
for (Widget widget : event.getWidgetOrdering()) {
attributeIDs.add(((AttributeViewImpl) widget).getAttributeId());
}
if (presenter != null) {
presenter.reorderAttributes(attributeIDs);
}
}
});
// TODO(jimr): Update this when/if GWT supports setting attributes on textboxes directly.
newAttributeName.getElement().setAttribute("placeholder", "Add a new attribute...");
}
/**
* Handler for hitting enter in the new attribute text box.
*/
@UiHandler("newAttributeName")
void onAttributeNameEnter(KeyDownEvent event) {
if (event.getNativeKeyCode() == KeyCodes.KEY_ENTER) {
addNewAttributeButton.click();
}
}
/**
* Handler for the addNewAttributeButton's click event. Adds a new project Attribute.
*/
@UiHandler("addNewAttributeButton")
void onAddNewAttributeButtonClicked(ClickEvent event) {
if (newAttributeName.getText().trim().length() == 0) {
Window.alert("Error: Please enter a name for the Attribute.");
return;
}
// Create new Attribute and attach to UI
Attribute newAttribute = new Attribute();
newAttribute.setParentProjectId(presenter.getProjectId());
newAttribute.setName(newAttributeName.getText());
presenter.createAttribute(newAttribute);
newAttributeName.setText("");
// Don't display the new attribute widget. Instead, wait for a full refresh from the presenter.
}
private AttributeViewImpl createAttributeWidget(Attribute attribute) {
AttributeViewImpl attributeView = new AttributeViewImpl();
if (editingEnabled) {
attributeView.enableEditing();
}
AttributePresenter attributePresenter = new AttributePresenter(
attribute, attributeView, this.presenter);
childPresenters.put(attribute.getAttributeId(), attributePresenter);
Boolean checked = signedOff.get(attribute.getAttributeId());
attributeView.setSignedOff(checked == null ? false : checked);
attributeView.setLabelSuggestions(projectLabels);
return attributeView;
}
/**
* Binds this View to the given Presenter.
*/
@Override
public void setPresenter(Presenter presenter) {
this.presenter = presenter;
}
/**
* Updates the UI to display the given set of Attributes.
*/
@Override
public void setProjectAttributes(List<Attribute> attributes) {
List<AttributeViewImpl> attributeWidgets = Lists.newArrayList();
for (Attribute attribute : attributes) {
attributeWidgets.add(createAttributeWidget(attribute));
}
// Build the widgets list.
attributesPanel.setWidgets(attributeWidgets,
new Function<AttributeViewImpl, Widget>() {
@Override
public Widget apply(AttributeViewImpl arg) {
return arg.attributeGripper;
}
});
}
@Override
public void refreshAttribute(Attribute attribute) {
AttributePresenter presenter = childPresenters.get(attribute.getAttributeId());
presenter.refreshView(attribute);
}
@Override
public void setSignoffs(List<Signoff> signoffs) {
signedOff.clear();
if (signoffs != null) {
for (Signoff s : signoffs) {
signedOff.put(s.getElementId(), s.getSignedOff());
}
}
for (Widget w : attributesPanel) {
AttributeViewImpl view = (AttributeViewImpl) w;
Boolean checked = signedOff.get(view.getAttributeId());
view.setSignedOff(checked == null ? false : checked);
}
}
@Override
public void setProjectLabels(Collection<String> projectLabels) {
this.projectLabels.clear();
this.projectLabels.addAll(projectLabels);
for (Widget w : attributesPanel) {
AttributeViewImpl view = (AttributeViewImpl) w;
view.setLabelSuggestions(this.projectLabels);
}
}
@Override
public void enableEditing() {
editingEnabled = true;
addNewAttributePanel.setVisible(true);
// Go through any existing attributes being displayed, and set their 'readwrite' flag.
for (Widget widget : attributesPanel) {
if (widget.getClass().equals(AttributeViewImpl.class)) {
((AttributeViewImpl) widget).enableEditing();
}
}
}
}