package org.ovirt.engine.ui.webadmin.section.main.presenter.tab.cluster;
import org.ovirt.engine.core.common.businessentities.Cluster;
import org.ovirt.engine.ui.common.presenter.AbstractSubTabPresenter;
import org.ovirt.engine.ui.common.uicommon.model.DetailModelProvider;
import org.ovirt.engine.ui.common.widget.tab.ModelBoundTabData;
import org.ovirt.engine.ui.uicommonweb.UICommand;
import org.ovirt.engine.ui.uicommonweb.models.clusters.ClusterGeneralModel;
import org.ovirt.engine.ui.uicommonweb.models.clusters.ClusterListModel;
import org.ovirt.engine.ui.uicommonweb.place.WebAdminApplicationPlaces;
import org.ovirt.engine.ui.webadmin.ApplicationConstants;
import org.ovirt.engine.ui.webadmin.ApplicationMessages;
import org.ovirt.engine.ui.webadmin.gin.AssetProvider;
import com.google.gwt.event.shared.EventBus;
import com.google.gwt.user.client.ui.Anchor;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.Widget;
import com.google.inject.Inject;
import com.gwtplatform.mvp.client.TabData;
import com.gwtplatform.mvp.client.annotations.NameToken;
import com.gwtplatform.mvp.client.annotations.ProxyCodeSplit;
import com.gwtplatform.mvp.client.annotations.TabInfo;
import com.gwtplatform.mvp.client.proxy.PlaceManager;
import com.gwtplatform.mvp.client.proxy.TabContentProxyPlace;
public class SubTabClusterGeneralPresenter
extends AbstractSubTabClusterPresenter<ClusterGeneralModel, SubTabClusterGeneralPresenter.ViewDef,
SubTabClusterGeneralPresenter.ProxyDef> {
private static final ApplicationConstants constants = AssetProvider.getConstants();
private static final ApplicationMessages messages = AssetProvider.getMessages();
@ProxyCodeSplit
@NameToken(WebAdminApplicationPlaces.clusterGeneralSubTabPlace)
public interface ProxyDef extends TabContentProxyPlace<SubTabClusterGeneralPresenter> {
}
public interface ViewDef extends AbstractSubTabPresenter.ViewDef<Cluster> {
/**
* Clear all the alerts currently displayed in the alerts panel of the cluster.
*/
void clearAlerts();
/**
* Displays a new alert in the alerts panel of the host.
*
* @param widget
* the widget used to display the alert, usually just a text label, but can also be a text label with
* a link to an action embedded
*/
void addAlert(Widget widget);
}
@TabInfo(container = ClusterSubTabPanelPresenter.class)
static TabData getTabData(DetailModelProvider<ClusterListModel<Void>, ClusterGeneralModel> modelProvider) {
return new ModelBoundTabData(constants.clusterGeneralSubTabLabel(), 0, modelProvider);
}
@Inject
public SubTabClusterGeneralPresenter(EventBus eventBus, ViewDef view, ProxyDef proxy,
ClusterMainTabSelectedItems selectedItems,
PlaceManager placeManager, DetailModelProvider<ClusterListModel<Void>, ClusterGeneralModel> modelProvider) {
super(eventBus, view, proxy, placeManager, modelProvider, selectedItems,
ClusterSubTabPanelPresenter.TYPE_SetTabContent);
}
@Override
public void initializeHandlers() {
super.initializeHandlers();
// Initialize the list of alerts:
final ClusterGeneralModel model = getModelProvider().getModel();
updateAlerts(getView(), model);
// Listen for changes in the properties of the model in order
// to update the alerts panel:
model.getPropertyChangedEvent().addListener((ev, sender, args) -> {
if (args.propertyName.contains("Alert")) { //$NON-NLS-1$
updateAlerts(getView(), model);
} else if (args.propertyName.contains("consoleAddressPartiallyOverridden")) { //$NON-NLS-1$
updateAlerts(getView(), model);
}
});
}
/**
* Review the model and if there are alerts add them to the view.
*
* @param view
* the view where alerts should be added
* @param model
* the model to review
*/
private void updateAlerts(final ViewDef view, final ClusterGeneralModel model) {
// Clear all the alerts:
view.clearAlerts();
// Review the alerts and add those that are active:
if (model.getHasNewGlusterHostsAlert()) {
addTextAndLinkAlert(view,
messages.clusterHasNewGlusterHosts(),
model.getImportNewGlusterHostsCommand(),
model.getDetachNewGlusterHostsCommand());
}
if (model.isConsoleAddressPartiallyOverridden()) {
view.addAlert(new Label(constants.consolePartiallyOverridden()));
}
}
/**
* Create a widget containing text and a link that triggers the execution of a command.
*
* @param view
* the view where the alert should be added
* @param text
* the text content of the alert
* @param commands
* the command that should be executed when the link is clicked
*/
private void addTextAndLinkAlert(final ViewDef view, final String text, final UICommand... commands) {
// Create a flow panel containing the text and the link:
final FlowPanel alertPanel = new FlowPanel();
int start = 0;
for (final UICommand command : commands) {
// Find the open and close positions of the link within the message:
final int openIndex = text.indexOf("<a>", start); //$NON-NLS-1$
final int closeIndex = text.indexOf("</a>", start); //$NON-NLS-1$
if (openIndex == -1 || closeIndex == -1 || closeIndex < openIndex) {
break;
}
// Extract the text before, inside and after the tags:
final String beforeText = text.substring(start, openIndex);
final String betweenText = text.substring(openIndex + 3, closeIndex);
start = closeIndex + 4;
// Create the label for the text before the tag:
final Label beforeLabel = new Label(beforeText);
beforeLabel.getElement().getStyle().setProperty("display", "inline"); //$NON-NLS-1$ //$NON-NLS-2$
alertPanel.add(beforeLabel);
// Create the anchor:
final Anchor betweenAnchor = new Anchor(betweenText);
betweenAnchor.getElement().getStyle().setProperty("display", "inline"); //$NON-NLS-1$ //$NON-NLS-2$
alertPanel.add(betweenAnchor);
// Add a listener to the anchor so that the command is executed when
// it is clicked:
betweenAnchor.addClickHandler(event -> command.execute());
}
if (start < text.length()) {
final String afterText = text.substring(start);
// Create the label for the text after the tag:
final Label afterLabel = new Label(afterText);
afterLabel.getElement().getStyle().setProperty("display", "inline"); //$NON-NLS-1$ //$NON-NLS-2$
alertPanel.add(afterLabel);
}
if (start > 0) {
// Add the alert to the view:
view.addAlert(alertPanel);
}
}
}