/** {@inheritDoc} */
@Override
public void openDoc(final PrintWriter writer) {
UIContext uic = UIContextHolder.getCurrent();
String title = getApplicationTitle(uic);
writer.write(XMLUtil.getXMLDeclarationWithThemeXslt(uic));
// Provide temporary backward compatibility with while
// applications convert to be XML compliant.
writer.write(XMLUtil.DOC_TYPE);
writer.write(
"\n<ui:root title=\""
+ WebUtilities.encode(title)
+ "\" "
+ XMLUtil.STANDARD_NAMESPACES
+ ">");
}
/**
* Retrieves the application title for the given context. This mess is required due to WWindow
* essentially existing as a separate UI root. If WWindow is eventually removed, then we can just
* retrieve the title from the root WApplication.
*
* @param uic the context to check.
* @return the current application title.
*/
private String getApplicationTitle(final UIContext uic) {
WComponent root = uic.getUI();
String title = root instanceof WApplication ? ((WApplication) root).getTitle() : null;
Map<String, String> params = uic.getEnvironment().getHiddenParameters();
String target = params.get(WWindow.WWINDOW_REQUEST_PARAM_KEY);
if (target != null) {
ComponentWithContext targetComp = WebUtilities.getComponentById(target, true);
if (targetComp != null && targetComp.getComponent() instanceof WWindow) {
try {
UIContextHolder.pushContext(targetComp.getContext());
title = ((WWindow) targetComp.getComponent()).getTitle();
} finally {
UIContextHolder.popContext();
}
}
}
return title == null ? "" : title;
}
/**
* Paint the ajax container response.
*
* @param renderContext the render context
* @param operation the ajax operation
*/
private void paintContainerResponse(
final RenderContext renderContext, final AjaxOperation operation) {
WebXmlRenderContext webRenderContext = (WebXmlRenderContext) renderContext;
XmlStringBuilder xml = webRenderContext.getWriter();
// Get trigger's context
ComponentWithContext trigger = AjaxHelper.getCurrentTriggerAndContext();
if (trigger == null) {
throw new SystemException("No context available for trigger " + operation.getTriggerId());
}
xml.appendTagOpen("ui:ajaxTarget");
xml.appendAttribute("id", operation.getTargetContainerId());
xml.appendAttribute("action", "replaceContent");
xml.appendClose();
// Paint targets - Assume targets are in the same context as the trigger
UIContextHolder.pushContext(trigger.getContext());
try {
for (String targetId : operation.getTargets()) {
ComponentWithContext target = null;
if (targetId.equals(operation.getTriggerId())) {
target = trigger;
} else {
target = WebUtilities.getComponentById(targetId, true);
if (target == null) {
log.warn("Could not find ajax target to render " + target);
continue;
}
}
target.getComponent().paint(renderContext);
}
} finally {
UIContextHolder.popContext();
}
xml.appendEndTag("ui:ajaxTarget");
}