private void sendWindowHandlerHtml(ExternalContext externalContext, String windowId) {
HttpServletResponse httpResponse = (HttpServletResponse) externalContext.getResponse();
try {
httpResponse.setStatus(HttpServletResponse.SC_OK);
httpResponse.setContentType("text/html");
String windowHandlerHtml = clientWindowConfig.getClientWindowHtml();
if (windowId == null) {
windowId = UNINITIALIZED_WINDOW_ID_VALUE;
}
// set the windowId value in the javascript code
windowHandlerHtml = windowHandlerHtml.replace(WINDOW_ID_REPLACE_PATTERN, windowId);
// set the noscript-URL for users with no JavaScript
windowHandlerHtml =
windowHandlerHtml.replace(NOSCRIPT_URL_REPLACE_PATTERN, getNoscriptUrl(externalContext));
OutputStream os = httpResponse.getOutputStream();
try {
os.write(windowHandlerHtml.getBytes());
} finally {
os.close();
}
} catch (IOException ioe) {
throw new FacesException(ioe);
}
}
@Override
public boolean isClientWindowRenderModeEnabled(FacesContext facesContext) {
ClientWindowRenderMode clientWindowRenderMode =
clientWindowConfig.getClientWindowRenderMode(facesContext);
if (ClientWindowRenderMode.LAZY.equals(clientWindowRenderMode)) {
Map<Object, Object> attrMap = facesContext.getAttributes();
return !attrMap.containsKey(PER_USE_CLIENT_WINDOW_URL_QUERY_PARAMETER_DISABLED_KEY);
}
return false;
}
@Override
public void enableClientWindowRenderMode(FacesContext facesContext) {
ClientWindowRenderMode clientWindowRenderMode =
clientWindowConfig.getClientWindowRenderMode(facesContext);
if (ClientWindowRenderMode.DELEGATED.equals(clientWindowRenderMode)) {
facesContext
.getExternalContext()
.getClientWindow()
.enableClientWindowRenderMode(facesContext);
} else if (ClientWindowRenderMode.LAZY.equals(clientWindowRenderMode)) {
Map<Object, Object> attrMap = facesContext.getAttributes();
attrMap.remove(PER_USE_CLIENT_WINDOW_URL_QUERY_PARAMETER_DISABLED_KEY);
}
}
@Override
public Map<String, String> getQueryURLParameters(FacesContext facesContext) {
ClientWindowRenderMode clientWindowRenderMode =
clientWindowConfig.getClientWindowRenderMode(facesContext);
if (ClientWindowRenderMode.LAZY.equals(clientWindowRenderMode)) {
String windowId = getWindowId(facesContext);
if (windowId != null) {
Map<String, String> params = new HashMap<String, String>();
params.put(DELTASPIKE_WINDOW_ID_URL_PARAM, getWindowId(facesContext));
return params;
}
}
return null;
}
@Override
public String getWindowId(FacesContext facesContext) {
ExternalContext externalContext = facesContext.getExternalContext();
Map<String, Object> requestMap = externalContext.getRequestMap();
// try to lookup from cache
String windowId = (String) requestMap.get(WINDOW_ID_REQUEST_MAP_KEY);
if (windowId != null) {
return windowId;
}
ClientWindowRenderMode clientWindowRenderMode =
clientWindowConfig.getClientWindowRenderMode(facesContext);
if (ClientWindowRenderMode.NONE.equals(clientWindowRenderMode)) {
// if this request should not get any window detection then we are done
windowId = DEFAULT_WINDOW_ID;
} else if (ClientWindowRenderMode.DELEGATED.equals(clientWindowRenderMode)) {
windowId = ClientWindowAdapter.getWindowIdFromJsf(facesContext);
} else if (ClientWindowRenderMode.LAZY.equals(clientWindowRenderMode)) {
windowId = ClientWindowHelper.getInitialRedirectWindowId(facesContext);
if (StringUtils.isEmpty(windowId)) {
windowId = externalContext.getRequestParameterMap().get(DELTASPIKE_WINDOW_ID_URL_PARAM);
}
if (StringUtils.isEmpty(windowId)) {
if (this.jsfModuleConfig.isInitialRedirectEnabled()) {
ClientWindowHelper.handleInitialRedirect(facesContext, generateNewWindowId());
facesContext.responseComplete();
windowId = null;
} else {
windowId = generateNewWindowId();
}
}
} else if (ClientWindowRenderMode.CLIENTWINDOW.equals(clientWindowRenderMode)) {
if (facesContext.isPostback()) {
windowId = getPostBackWindowId(facesContext);
} else if (isNoscriptRequest(externalContext)) {
// the client has JavaScript disabled
clientWindowConfig.setJavaScriptEnabled(false);
windowId = DEFAULT_WINDOW_ID;
} else {
windowId = getVerifiedWindowIdFromCookie(externalContext);
boolean newWindowIdRequested = false;
if (AUTOMATED_ENTRY_POINT_PARAMETER_KEY.equals(windowId)) {
// this is a marker for generating a new windowId
windowId = generateNewWindowId();
newWindowIdRequested = true;
}
if (windowId == null || newWindowIdRequested) {
// GET request without windowId - send windowhandlerfilter.html to get the windowId
sendWindowHandlerHtml(externalContext, windowId);
facesContext.responseComplete();
}
}
}
// we have a valid windowId - set it and continue with the request
if (windowId != null) {
requestMap.put(WINDOW_ID_REQUEST_MAP_KEY, windowId);
}
return windowId;
}