public void processEvent(SystemEvent event) throws AbortProcessingException {
FacesContext context = FacesContext.getCurrentInstance();
ExternalContext externalContext = context.getExternalContext();
Theme theme = (Theme) externalContext.getSessionMap().get(MOBI_THEME_KEY);
boolean prod = context.isProjectStage(ProjectStage.Production);
String name = CSSUtils.getThemeCSSFileName(theme, prod);
String library = deriveLibrary(context.getAttributes());
UIComponent resource = createThemeResource(context, library, name);
context.getViewRoot().addComponentResource(context, resource);
}
private void writeOutDeviceStyleSheets(
FacesContext facesContext, DeviceResource comp, Theme theme) throws IOException {
/**
* The component has three modes in which it executes. 1.) no attributes - then component tries
* to detect a mobile device in from the user-agent. If a mobile device is discovered, then it
* will fall into three possible matches, iphone, ipad, android and blackberry. If the mobile
* device is not not know then ipad is loaded. Library is always assumed to be DEFAULT_LIBRARY.
*
* <p>2.) name attribute - component will default to using a library name of DEFAULT_LIBRARY.
* The name attribute specifies one of the possible device themes; iphone.css, android.css or
* bberry.css. Error will result if named resource could not be resolved.
*
* <p>3.) name and libraries attributes. - component will use the library and name specified by
* the user. Component is fully manual in this mode. Error will result if name and library can
* not generate a value resource.
*/
boolean prod = facesContext.isProjectStage(ProjectStage.Production);
String cssFile = CSSUtils.getThemeCSSFileName(theme, prod);
String library = deriveLibrary(facesContext.getAttributes());
Resource resource =
facesContext
.getApplication()
.getResourceHandler()
.createResource(cssFile, library, "text/css");
String resourceUrl = RESOURCE_URL_ERROR;
if (resource != null) {
resourceUrl = facesContext.getExternalContext().encodeResourceURL(resource.getRequestPath());
} else if (log.isLoggable(Level.WARNING)) {
log.warning("Warning could not load resource " + library + "/" + theme);
}
ResponseWriter writer = facesContext.getResponseWriter();
writer.startElement(HTML.LINK_ELEM, comp);
writer.writeAttribute(HTML.TYPE_ATTR, HTML.LINK_TYPE_TEXT_CSS, HTML.TYPE_ATTR);
writer.writeAttribute(HTML.REL_ATTR, HTML.STYLE_REL_STYLESHEET, HTML.REL_ATTR);
PassThruAttributeWriter.renderNonBooleanAttributes(
writer, comp, new Attribute[] {new Attribute("media", null)});
writer.writeURIAttribute(HTML.HREF_ATTR, resourceUrl, HTML.HREF_ATTR);
writer.endElement(HTML.LINK_ELEM);
}
public void processEvent(ComponentSystemEvent event) throws AbortProcessingException {
// http://javaserverfaces.java.net/nonav/docs/2.0/pdldocs/facelets/index.html
// Finally make sure the component is only rendered in the header of the
// HTML document.
UIComponent component = event.getComponent();
FacesContext context = FacesContext.getCurrentInstance();
if (log.isLoggable(Level.FINER)) {
log.finer("processEvent for component = " + component.getClass().getName());
}
context.getViewRoot().addComponentResource(context, component, HTML.HEAD_ELEM);
ClientDescriptor client =
ClientDescriptor.getInstance(
(HttpServletRequest) context.getExternalContext().getRequest());
String themeParam = context.getExternalContext().getRequestParameterMap().get("theme");
Theme theme = null;
if (client.isIE9orLessBrowser()) {
theme = Theme.ARCHAIC;
} else {
theme =
Theme.getEnum(
themeParam != null
? themeParam
: (String) event.getComponent().getAttributes().get("theme"));
if (theme == null) {
String targetView = (String) event.getComponent().getAttributes().get("view");
theme = CSSUtils.deriveTheme(targetView, JSFUtils.getRequest());
}
}
// android and honeycomb themes deprecated
if (theme == Theme.ANDROID || theme == Theme.HONEYCOMB) {
theme = Theme.ANDROID_DARK;
}
context.getExternalContext().getSessionMap().put(MOBI_THEME_KEY, theme);
}