// 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.ComponentPresenter;
import com.google.testing.testify.risk.frontend.client.view.ComponentsView;
import com.google.testing.testify.risk.frontend.client.view.widgets.SortableVerticalPanel;
import com.google.testing.testify.risk.frontend.model.Component;
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 Components page of a project.
*
* @author chrsmith@google.com (Chris Smith)
*/
public class ComponentsViewImpl extends Composite implements ComponentsView {
interface ComponentsViewImplUiBinder extends UiBinder<Widget, ComponentsViewImpl> {}
private static final ComponentsViewImplUiBinder uiBinder =
GWT.create(ComponentsViewImplUiBinder.class);
@UiField
public SortableVerticalPanel<ComponentViewImpl> componentsPanel;
@UiField
public HorizontalPanel addNewComponentPanel;
@UiField
public TextBox newComponentName;
@UiField
public Button addNewComponentButton;
// 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, ComponentPresenter> childPresenters = Maps.newHashMap();
/**
* Constructs a ProjectSettings object.
*/
public ComponentsViewImpl() {
initWidget(uiBinder.createAndBindUi(this));
// When the widget list is reordered, notify the presenter.
componentsPanel.addWidgetsReorderedHandler(
new WidgetsReorderedHandler() {
@Override
public void onWidgetsReordered(WidgetsReorderedEvent event) {
List<Long> attributeIDs = Lists.newArrayList();
for (Widget widget : event.getWidgetOrdering()) {
attributeIDs.add(((ComponentViewImpl) widget).getComponentId());
}
if (presenter != null) {
presenter.reorderComponents(attributeIDs);
}
}
});
// TODO(jimr): Update this when/if GWT supports setting attributes on textboxes directly.
newComponentName.getElement().setAttribute("placeholder", "Add a new component...");
}
/**
* Returns a new Component widget to be displayed on the componentsList.
*/
private ComponentViewImpl createComponentWidget(Component component) {
ComponentViewImpl componentView = new ComponentViewImpl();
if (editingEnabled) {
componentView.enableEditing();
}
Boolean checked = signedOff.get(component.getComponentId());
componentView.setSignedOff(checked == null ? false : checked);
componentView.setLabelSuggestions(projectLabels);
ComponentPresenter componentPresenter = new ComponentPresenter(
component, componentView, this.presenter);
childPresenters.put(component.getComponentId(), componentPresenter);
return componentView;
}
/**
* Handler for hitting enter in the new component text box.
*/
@UiHandler("newComponentName")
protected void onComponentNameEnter(KeyDownEvent event) {
if (event.getNativeKeyCode() == KeyCodes.KEY_ENTER) {
addNewComponentButton.click();
}
}
/**
* Handler for the addNewComponentButton's click event. Adds a new project Component.
*/
@UiHandler("addNewComponentButton")
protected void onAddNewComponentButtonClicked(ClickEvent event) {
if (newComponentName.getText().trim().length() == 0) {
Window.alert("Error: Please enter a Component name.");
return;
}
// Create new Component and attach to UI
Component newComponent = new Component(presenter.getProjectId());
newComponent.setName(newComponentName.getText());
presenter.createComponent(newComponent);
// Upon creation the presenter will do a full refresh. No need to rebuild the Component list.
newComponentName.setText("");
}
/**
* 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 Components.
*/
@Override
public void setProjectComponents(List<Component> components) {
List<ComponentViewImpl> componentWidgets = Lists.newArrayList();
for (Component component : components) {
componentWidgets.add(createComponentWidget(component));
}
// Build the widgets list.
componentsPanel.setWidgets(componentWidgets,
new Function<ComponentViewImpl, Widget>() {
@Override
public Widget apply(ComponentViewImpl arg) {
return arg.componentGripper;
}
});
}
@Override
public void refreshComponent(Component component) {
ComponentPresenter childPresenter = childPresenters.get(component.getComponentId());
childPresenter.refreshView(component);
}
@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 : componentsPanel) {
ComponentViewImpl view = (ComponentViewImpl) w;
Boolean checked = signedOff.get(view.getComponentId());
view.setSignedOff(checked == null ? false : checked);
}
}
@Override
public void setProjectLabels(Collection<String> projectLabels) {
this.projectLabels.clear();
this.projectLabels.addAll(projectLabels);
for (Widget w : componentsPanel) {
AttributeViewImpl view = (AttributeViewImpl) w;
view.setLabelSuggestions(this.projectLabels);
}
}
@Override
public void enableEditing() {
editingEnabled = true;
addNewComponentPanel.setVisible(true);
// Go through any existing components being displayed, and set their 'readwrite' flag.
for (Widget widget : componentsPanel) {
if (widget.getClass().equals(ComponentViewImpl.class)) {
((ComponentViewImpl) widget).enableEditing();
}
}
}
}