570 lines
13 KiB
Java
570 lines
13 KiB
Java
/**
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*
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*/
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package org.gcube.portlets.widgets.githubconnector.client.wizard;
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import java.util.ArrayList;
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import org.gcube.portlets.widgets.githubconnector.client.resource.GCResources;
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import org.gcube.portlets.widgets.githubconnector.client.util.GWTMessages;
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import com.google.gwt.core.client.Callback;
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import com.google.gwt.core.client.GWT;
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import com.google.gwt.dom.client.Element;
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import com.google.gwt.dom.client.NativeEvent;
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import com.google.gwt.dom.client.Node;
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import com.google.gwt.dom.client.Style.Float;
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import com.google.gwt.event.dom.client.ClickEvent;
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import com.google.gwt.event.dom.client.ClickHandler;
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import com.google.gwt.event.logical.shared.ResizeEvent;
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import com.google.gwt.event.logical.shared.ResizeHandler;
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import com.google.gwt.event.shared.EventBus;
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import com.google.gwt.event.shared.HandlerRegistration;
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import com.google.gwt.event.shared.SimpleEventBus;
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import com.google.gwt.user.client.Command;
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import com.google.gwt.user.client.Event;
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import com.google.gwt.user.client.Event.NativePreviewEvent;
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import com.google.gwt.user.client.Window;
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import com.google.gwt.user.client.ui.Button;
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import com.google.gwt.user.client.ui.DeckPanel;
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import com.google.gwt.user.client.ui.DialogBox;
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import com.google.gwt.user.client.ui.DockPanel;
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import com.google.gwt.user.client.ui.FlowPanel;
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import com.google.gwt.user.client.ui.Widget;
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/**
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*
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* @author "Giancarlo Panichi" <a
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* href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
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*
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*/
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public class WizardWindow extends DialogBox {
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private HandlerRegistration resizeHandlerRegistration;
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protected boolean WIZARD_RESIZABLE = false;
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protected boolean WIZARD_COLLAPSIBLE = true;
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protected ArrayList<WizardListener> listeners;
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protected EventBus eventBus;
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protected String title;
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protected ArrayList<WizardCard> cardStack = new ArrayList<WizardCard>();
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protected Button backButton;
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protected Button nextButton;
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protected String originalTitle;
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protected boolean checkBeforeClose = true;
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protected boolean nextCardFinish = false;
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protected Command nextButtonAction = null;
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protected Command previousButtonAction = null;
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protected DockPanel dockPanel;
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protected FlowPanel moveToolBar;
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// protected FillToolItem fillSpacingCardMoveToolBar;
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protected WizardMessages msgs;
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protected DeckPanel deckPanel;
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/**
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* Create a new Wizard Window with the specified title.
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*
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* @param title
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* the wizard window title.
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*/
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public WizardWindow(String title) {
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this(title, new SimpleEventBus());
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}
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public WizardWindow(String title, EventBus eventBus) {
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super();
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GWT.log("WizardWindow");
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this.title = title;
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this.eventBus = eventBus;
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this.msgs = GWT.create(WizardMessages.class);
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initWindow();
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initHandler();
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addToolIcon();
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listeners = new ArrayList<WizardListener>();
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deckPanel = new DeckPanel();
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backButton = new Button("<div><img class='"
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+ GCResources.INSTANCE.wizardCSS()
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.getWizardPreviousButtonIcon()
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+ "' src='"
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+ GCResources.INSTANCE.wizardPrevious24().getSafeUri()
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.asString()
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+ "'/>"
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+ "<span class='"
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+ GCResources.INSTANCE.wizardCSS()
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.getWizardPreviousButtonText() + "'>"
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+ msgs.buttonBackLabel() + "</span>" + "</div>");
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backButton.setEnabled(false);
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backButton.setTabIndex(1001);
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backButton.getElement().getStyle().setFloat(Float.LEFT);
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backButton.addClickHandler(new ClickHandler() {
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@Override
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public void onClick(ClickEvent event) {
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if (previousButtonAction != null)
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previousButtonAction.execute();
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else
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previousCard();
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}
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});
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nextButton = new Button("<div><span class='"
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+ GCResources.INSTANCE.wizardCSS().getWizardNextButtonText()
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+ "'>" + msgs.buttonNextLabel() + "</span>" + "<img class='"
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+ GCResources.INSTANCE.wizardCSS().getWizardNextButtonIcon()
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+ "'" + " src='"
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+ GCResources.INSTANCE.wizardNext24().getSafeUri().asString()
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+ "'/></div>");
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nextButton.setEnabled(false);
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nextButton.setTabIndex(1002);
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nextButton.getElement().getStyle().setFloat(Float.RIGHT);
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nextButton.addClickHandler(new ClickHandler() {
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@Override
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public void onClick(ClickEvent event) {
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if (nextButtonAction != null)
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nextButtonAction.execute();
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else
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nextCard();
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}
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});
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moveToolBar = new FlowPanel();
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moveToolBar.setWidth("100%");
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moveToolBar.add(backButton);
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moveToolBar.add(nextButton);
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dockPanel = new DockPanel();
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dockPanel.setSpacing(4);
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dockPanel.add(deckPanel, DockPanel.CENTER);
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dockPanel.add(moveToolBar, DockPanel.SOUTH);
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dockPanel.setWidth("100%");
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setWidget(dockPanel);
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center();
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}
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private void initHandler() {
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resizeHandlerRegistration = Window
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.addResizeHandler(new ResizeHandler() {
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@Override
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public void onResize(ResizeEvent event) {
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center();
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}
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});
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}
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protected void initWindow() {
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GWT.log(title);
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setModal(true);
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setGlassEnabled(true);
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setAnimationEnabled(true);
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setText(title);
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this.originalTitle = title;
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}
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public void addListener(WizardListener listener) {
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listeners.add(listener);
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}
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public void removeListener(WizardListener listener) {
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listeners.remove(listener);
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}
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/**
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* Shows the next available card.
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*/
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public void nextCard() {
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int index = deckPanel.getVisibleWidget();
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Widget activeItem = deckPanel.getWidget(index);
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if (activeItem instanceof WizardCard)
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((WizardCard) activeItem).dispose();
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int cardPos = cardStack.indexOf(activeItem);
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// NEXT ->
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nextButton.setEnabled(true);
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backButton.setEnabled(true);
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int newPos = cardPos + 1;
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if (newPos == 0) {
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// we are moving forward from the first card
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backButton.setEnabled(false);
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}
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nextButtonAction = null;
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previousButtonAction = null;
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GWT.log("cardStack size:" + cardStack.size());
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WizardCard card = cardStack.get(newPos);
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deckPanel.add(card);
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int showIndex = deckPanel.getWidgetIndex(card);
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deckPanel.showWidget(showIndex);
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if (card instanceof WizardCard)
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((WizardCard) card).setup();
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}
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/**
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* Shows the previous available card.
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*/
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public void previousCard() {
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int index = deckPanel.getVisibleWidget();
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Widget activeItem = deckPanel.getWidget(index);
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if (activeItem instanceof WizardCard)
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((WizardCard) activeItem).dispose();
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int cardPos = cardStack.indexOf(activeItem);
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// BACK <-
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nextButton.setEnabled(true);
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backButton.setEnabled(true);
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int newPos = cardPos - 1;
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if (newPos == 0) {
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backButton.setEnabled(false);
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}
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nextButtonAction = null;
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previousButtonAction = null;
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WizardCard card = cardStack.get(newPos);
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deckPanel.add(card);
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int showIndex = deckPanel.getWidgetIndex(card);
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deckPanel.showWidget(showIndex);
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if (card instanceof WizardCard)
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((WizardCard) card).setup();
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}
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/**
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* Returns the number of available cards.
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*
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* @return
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*/
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public int getCardStackSize() {
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return cardStack.size();
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}
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/**
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* Returns the current active card.
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*
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* @return
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*/
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public int getCurrentCard() {
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int index = deckPanel.getVisibleWidget();
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Widget activeItem = deckPanel.getWidget(index);
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return cardStack.indexOf(activeItem);
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}
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public boolean checkBeforeClose() {
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return true;
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}
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public void close(boolean check) {
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checkBeforeClose = check;
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hide();
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}
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/**
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* Sets the label of next button to "Finish" value and add a close command
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* to it.
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*/
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public void setNextButtonToFinish() {
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nextButton = new Button("<div><span class='"
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+ GCResources.INSTANCE.wizardCSS().getWizardNextButtonText()
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+ "'>" + msgs.buttonFinishLabel() + "</span>" + "<img class='"
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+ GCResources.INSTANCE.wizardCSS().getWizardNextButtonIcon()
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+ "'" + " src='"
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+ GCResources.INSTANCE.wizardGo24().getSafeUri().asString()
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+ "'/></div>");
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// nextButton.setIcon(GCResources.INSTANCE.wizardGo());
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// nextButton.setIconAlign(IconAlign.RIGHT);
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nextButtonAction = new Command() {
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public void execute() {
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close(false);
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}
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};
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}
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/**
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* Set the command for the next button.
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*
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* @param command
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* the command to execute.
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*/
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public void setNextButtonCommand(Command command) {
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nextButtonAction = command;
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}
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/**
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* Set the command for the previous button.
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*
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* @param command
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* the command to execute.
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*/
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public void setPreviousButtonCommand(Command command) {
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previousButtonAction = command;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void show() {
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super.show();
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int index = deckPanel.getVisibleWidget();
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GWT.log("Visible widget: " + index);
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Widget activeItem;
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if (index == -1) {
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if (deckPanel.getWidgetCount() > 0) {
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deckPanel.showWidget(0);
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activeItem = deckPanel.getWidget(0);
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if (activeItem instanceof WizardCard)
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((WizardCard) activeItem).setup();
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backButton.setEnabled(false);
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center();
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} else {
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backButton.setEnabled(false);
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nextButton.setEnabled(false);
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}
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} else {
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deckPanel.showWidget(index);
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activeItem = deckPanel.getWidget(index);
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if (activeItem instanceof WizardCard)
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((WizardCard) activeItem).setup();
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}
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}
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@Override
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public void hide() {
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if (resizeHandlerRegistration != null) {
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resizeHandlerRegistration.removeHandler();
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resizeHandlerRegistration = null;
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}
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super.hide();
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}
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/**
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* Set the card list.
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*
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* @param cards
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*/
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public void setCards(ArrayList<WizardCard> cards) {
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for (WizardCard card : cards) {
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addCard(card);
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}
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}
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/**
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* Adds a card to this wizard.
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*
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* @param card
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* the card to add.
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*/
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public void addCard(WizardCard card) {
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card.setWizardWindow(this);
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if (deckPanel.getVisibleWidget() > -1) {
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int index = deckPanel.getVisibleWidget();
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deckPanel.remove(index);
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}
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deckPanel.add(card);
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cardStack.add(card);
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}
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/**
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* Remove a card to this wizard.
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*
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* @param card
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* the card to add.
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*/
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public void removeCard(WizardCard card) {
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deckPanel.remove(card);
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cardStack.remove(card);
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}
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/**
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* Enables the next button on the wizard.
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*
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* @param enable
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* <code>true</code> to enable the next button,
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* <code>false</code> otherwise.
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*/
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public void setEnableNextButton(boolean enable) {
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nextButton.setEnabled(enable);
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}
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/**
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* Enables the back button on the wizard.
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*
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* @param enable
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* <code>true</code> to enable the back button,
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* <code>false</code> otherwise.
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*/
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public void setEnableBackButton(boolean enable) {
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backButton.setEnabled(enable);
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}
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/**
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* Sets the next button label.
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*
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* @param text
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* the button label.
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*/
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protected void setNextButtonText(String text) {
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nextButton.setText(text);
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}
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/**
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* Sets the back button label.
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*
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* @param text
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* the button label.
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*/
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protected void setBackButtonText(String text) {
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backButton.setText(text);
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}
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/**
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* Sets visible next button.
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*
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* @param visible
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*/
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protected void setNextButtonVisible(boolean visible) {
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nextButton.setVisible(visible);
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}
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/**
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* Sets visible back button.
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*
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* @param visible
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*/
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protected void setBackButtonVisible(boolean visible) {
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backButton.setVisible(visible);
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}
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/**
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* Add a listener to the next button.
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*
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* @param listener
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* the listener to add.
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*/
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protected void addNextButtonListener(ClickHandler listener) {
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nextButton.addClickHandler(listener);
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}
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/**
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* @return the originalTitle
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*/
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public String getOriginalTitle() {
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return originalTitle;
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}
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/**
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* Returns the card list.
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*
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* @return teh card list.
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*/
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public ArrayList<WizardCard> getCardStack() {
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return cardStack;
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}
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public void showErrorAndHide(final String title, final String message,
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final String details, final Throwable throwable) {
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GWTMessages.alert(title, message + " " + details,
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new Callback<Void, Void>() {
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@Override
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public void onFailure(Void reason) {
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hide();
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}
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@Override
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public void onSuccess(Void result) {
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hide();
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}
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});
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}
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private Node closeEventTarget = null;
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private void addToolIcon() {
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// get the "dialogTopRight" class td
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Element dialogTopRight = getCellElement(0, 2);
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// close button image html
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dialogTopRight.setInnerHTML("<div class='"
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+ GCResources.INSTANCE.wizardCSS().getWizardToolButtonText()
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+ "'>"
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+ "<img src='"
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+ GCResources.INSTANCE.toolButtonClose20().getSafeUri()
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.asString() + "' class='"
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+ GCResources.INSTANCE.wizardCSS().getWizardToolButtonIcon()
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+ "' /></div>");
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// set the event target
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closeEventTarget = dialogTopRight.getChild(0).getChild(0);
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}
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@Override
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protected void onPreviewNativeEvent(NativePreviewEvent event) {
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NativeEvent nativeEvent = event.getNativeEvent();
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if (!event.isCanceled() && (event.getTypeInt() == Event.ONCLICK)
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&& isCloseEvent(nativeEvent)) {
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this.hide();
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}
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super.onPreviewNativeEvent(event);
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}
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// see if the click target is the close button
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private boolean isCloseEvent(NativeEvent event) {
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return event.getEventTarget().equals(closeEventTarget); // compares
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// equality of
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// the
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// underlying
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// DOM elements
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}
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}
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