/**
* 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(
new ClickHandler() {
@Override
public void onClick(ClickEvent 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);
}
}