private Object removeFromMap(Serializable key, String mapKey) {
Object ret = null;
if (component.initialStateMarked()) {
Map<String, Object> dMap = (Map<String, Object>) deltaMap.get(key);
if (dMap != null) {
ret = dMap.remove(mapKey);
if (dMap.isEmpty()) {
deltaMap.remove(key);
}
}
}
Map<String, Object> map = (Map<String, Object>) get(key);
if (map != null) {
if (ret == null) {
ret = map.remove(mapKey);
} else {
map.remove(mapKey);
}
if (map.isEmpty()) {
defaultMap.remove(key);
}
}
if (ret != null && !component.initialStateMarked()) {
deltaMap.remove(key);
}
return ret;
}
public static UIComponent addTransient(
FacesContext context, ServletRequest req, UIComponent parent, String prevId, Class childClass)
throws Exception {
if (context == null) context = FacesContext.getCurrentInstance();
if (parent == null) {
UIComponentClassicTagBase parentTag =
(UIComponentClassicTagBase) req.getAttribute("caucho.jsf.parent");
parent = parentTag.getComponentInstance();
BodyContent body = parentTag.getBodyContent();
if (body != null) addVerbatim(parent, body);
}
UIComponent child = null;
;
if (child == null) child = (UIComponent) childClass.newInstance();
child.setTransient(true);
addChild(parent, prevId, child);
return child;
}
protected void assignUniqueId(FaceletContext ctx, UIComponent parent, String id, UIComponent c) {
// If the id is specified as a literal, and the component is being
// repeated (by c:forEach, for example), use generated unique ids
// after the first instance
if (this.id != null && !(this.id.isLiteral() && ComponentSupport.getNeedUniqueIds(ctx))) {
c.setId(this.id.getValue(ctx));
} else {
UIViewRoot root = ComponentSupport.getViewRoot(ctx, parent);
if (root != null) {
String uid;
IdMapper mapper = IdMapper.getMapper(ctx.getFacesContext());
String mid = ((mapper != null) ? mapper.getAliasedId(id) : id);
UIComponent ancestorNamingContainer = parent.getNamingContainer();
if (null != ancestorNamingContainer && ancestorNamingContainer instanceof UniqueIdVendor) {
uid =
((UniqueIdVendor) ancestorNamingContainer).createUniqueId(ctx.getFacesContext(), mid);
} else {
uid = root.createUniqueId(ctx.getFacesContext(), mid);
}
c.setId(uid);
}
}
if (this.rendererType != null) {
c.setRendererType(this.rendererType);
}
}
public static UIComponent findPersistent(
FacesContext context, ServletRequest req, UIComponent parent, String id) throws Exception {
if (context == null) context = FacesContext.getCurrentInstance();
BodyContent body = null;
if (parent == null) {
UIComponentClassicTagBase parentTag =
(UIComponentClassicTagBase) req.getAttribute("caucho.jsf.parent");
parent = parentTag.getComponentInstance();
body = parentTag.getBodyContent();
}
if (parent != null) {
List<UIComponent> children = parent.getChildren();
int size = children.size();
String prevId = null;
for (int i = 0; i < size; i++) {
UIComponent child = children.get(i);
if (id.equals(child.getId())) {
if (body != null) addVerbatim(parent, prevId, body);
return child;
}
if (child.getId() != null) prevId = child.getId();
}
}
return null;
}
public void render(Graphics g) {
g.setColor(color);
g.fillRect(position.x, position.y, size.x, size.y);
for (UIComponent component : components) {
component.render(g);
}
}
public static UIComponent findParentForm(FacesContext context, UIComponent component) {
UIComponent parent = component;
while (parent != null)
if (parent instanceof UIForm) break;
else parent = parent.getParent();
return parent;
}
protected void setProperties(UIComponent component) {
if (_binding != null) component.setValueExpression("binding", _binding);
if (_rendered != null) component.setValueExpression("rendered", _rendered);
String type = getRendererType();
if (type != null) component.setRendererType(type);
}
public static String findComponentClientId(String id) {
UIComponent component = null;
FacesContext facesContext = FacesContext.getCurrentInstance();
component = findComponent(facesContext.getViewRoot(), id);
return component.getClientId(facesContext);
}
public void renderBlockToUpdate(UIComponent uicomponent, WebuiRequestContext context, Writer w)
throws Exception {
w.write("<div class=\"BlockToUpdate\">");
w.append("<div class=\"BlockToUpdateId\">").append(uicomponent.getId()).append("</div>");
w.write("<div class=\"BlockToUpdateData\">");
uicomponent.processRender(context);
w.write("</div>");
w.write("</div>");
}
@SuppressWarnings({"UnusedDeclaration"})
protected UIComponent findReparentedComponent(
FaceletContext ctx, UIComponent parent, String tagId) {
UIComponent facet = parent.getFacets().get(UIComponent.COMPOSITE_FACET_NAME);
if (facet != null) {
UIComponent newParent = facet.findComponent((String) parent.getAttributes().get(tagId));
if (newParent != null) return ComponentSupport.findChildByTagId(newParent, tagId);
}
return null;
}
private void doSetBindings(ELContext elContext, UIComponent component) {
if (component == null) return;
ValueExpression binding = component.getValueExpression("binding");
if (binding != null) binding.setValue(elContext, component);
Iterator<UIComponent> iter = component.getFacetsAndChildren();
while (iter.hasNext()) doSetBindings(elContext, iter.next());
}
/**
* Docs
*
* @param key
* @param defaultValue value to return if key is not present in main or delta-map
* @return value - if null, defaultValue
*/
public Object eval(Serializable key, Object defaultValue) {
Object retVal = get(key);
if (retVal == null) {
ValueExpression ve = component.getValueExpression(key.toString());
if (ve != null) {
retVal = ve.getValue(component.getFacesContext().getELContext());
}
}
return ((retVal != null) ? retVal : defaultValue);
}
protected boolean pushComponentToEL(
FaceletContext ctx, UIComponent c, CompositeComponentStackManager ccStackManager) {
c.pushComponentToEL(ctx.getFacesContext(), c);
boolean compcompPushed = false;
if (UIComponent.isCompositeComponent(c)) {
compcompPushed = ccStackManager.push(c, TreeCreation);
}
return compcompPushed;
}
protected List getRenderedChildColumnsList(UIComponent component) {
List results = new ArrayList();
Iterator kids = component.getChildren().iterator();
while (kids.hasNext()) {
UIComponent kid = (UIComponent) kids.next();
if ((kid instanceof UIColumn) && kid.isRendered()) {
results.add(kid);
} else if (kid instanceof UIColumns) {
results.add(kid);
}
}
return results;
}
public static String getWidgetVar(String id) {
UIComponent component = findComponent(FacesContext.getCurrentInstance().getViewRoot(), id);
Renderer renderer =
FacesContext.getCurrentInstance()
.getRenderKit()
.getRenderer(component.getFamily(), component.getRendererType());
if (component == null) throw new FacesException("Cannot find component " + id + " in view.");
else if (!(renderer instanceof CoreRenderer))
throw new FacesException("Component with id " + id + " is not derived from CoreRenderer.");
return ((CoreRenderer) renderer).resolveWidgetVar(component);
}
/**
* Override the {@link UIComponent#getContainerClientId} to allow users to disable this form from
* prepending its <code>clientId</code> to its descendent's <code>clientIds</code> depending on
* the value of this form's {@link #isPrependId} property.
*/
public String getContainerClientId(FacesContext context) {
if (this.isPrependId()) {
return super.getContainerClientId(context);
} else {
UIComponent parent = this.getParent();
while (parent != null) {
if (parent instanceof NamingContainer) {
return parent.getContainerClientId(context);
}
parent = parent.getParent();
}
}
return null;
}
public static void decorateAttribute(UIComponent component, String attribute, String value) {
String attributeValue = (String) component.getAttributes().get(attribute);
if (attributeValue != null) {
if (attributeValue.indexOf(value) == -1) {
String decoratedValue = attributeValue + ";" + value;
component.getAttributes().put(attribute, decoratedValue);
} else {
component.getAttributes().put(attribute, attributeValue);
}
} else {
component.getAttributes().put(attribute, value);
}
}
public static UIComponent addFacet(
FacesContext context,
ServletRequest req,
UIComponent parent,
String facetName,
ValueExpression binding,
Class childClass)
throws Exception {
if (context == null) context = FacesContext.getCurrentInstance();
if (parent == null) {
UIComponentClassicTagBase parentTag =
(UIComponentClassicTagBase) req.getAttribute("caucho.jsf.parent");
parent = parentTag.getComponentInstance();
}
UIComponent child = null;
if (binding != null) child = (UIComponent) binding.getValue(context.getELContext());
if (child == null) child = (UIComponent) childClass.newInstance();
if (parent != null) parent.getFacets().put(facetName, child);
if (binding != null) binding.setValue(context.getELContext(), child);
return child;
}
/**
* Override {@link UIComponent#processUpdates} to ensure that the children of this <code>UIForm
* </code> instance are only processed if {@link #isSubmitted} returns <code>true</code>.
*
* @throws NullPointerException {@inheritDoc}
*/
public void processUpdates(FacesContext context) {
if (context == null) {
throw new NullPointerException();
}
if (!isSubmitted()) {
return;
}
// Process all facets and children of this component
Iterator kids = getFacetsAndChildren();
while (kids.hasNext()) {
UIComponent kid = (UIComponent) kids.next();
kid.processUpdates(context);
}
}
public static List<SelectItem> createSelectItems(UIComponent component) {
List<SelectItem> items = new ArrayList<SelectItem>();
Iterator<UIComponent> children = component.getChildren().iterator();
while (children.hasNext()) {
UIComponent child = children.next();
if (child instanceof UISelectItem) {
UISelectItem selectItem = (UISelectItem) child;
items.add(new SelectItem(selectItem.getItemValue(), selectItem.getItemLabel()));
} else if (child instanceof UISelectItems) {
Object selectItems = ((UISelectItems) child).getValue();
if (selectItems instanceof SelectItem[]) {
SelectItem[] itemsArray = (SelectItem[]) selectItems;
for (SelectItem item : itemsArray)
items.add(new SelectItem(item.getValue(), item.getLabel()));
} else if (selectItems instanceof Collection) {
Collection<SelectItem> collection = (Collection<SelectItem>) selectItems;
for (SelectItem item : collection)
items.add(new SelectItem(item.getValue(), item.getLabel()));
}
}
}
return items;
}
private void adjustIndexOfDynamicChildren(FacesContext context, UIComponent parent) {
StateContext stateContext = StateContext.getStateContext(context);
if (!stateContext.hasOneOrMoreDynamicChild(parent)) {
return;
}
List<UIComponent> children = parent.getChildren();
List<UIComponent> dynamicChildren = Collections.emptyList();
for (UIComponent cur : children) {
if (stateContext.componentAddedDynamically(cur)) {
if (dynamicChildren.isEmpty()) {
dynamicChildren = new ArrayList<UIComponent>(children.size());
}
dynamicChildren.add(cur);
}
}
for (UIComponent cur : dynamicChildren) {
int i = stateContext.getIndexOfDynamicallyAddedChildInParent(cur);
if (-1 != i) {
children.remove(cur);
children.add(i, cur);
}
}
}
private static void renderPassThruAttributesUnoptimized(
FacesContext context,
ResponseWriter writer,
UIComponent component,
Attribute[] knownAttributes,
Map<String, List<ClientBehavior>> behaviors)
throws IOException {
boolean isXhtml = XHTML_CONTENT_TYPE.equals(writer.getContentType());
Map<String, Object> attrMap = component.getAttributes();
for (Attribute attribute : knownAttributes) {
String attrName = attribute.getName();
String[] events = attribute.getEvents();
boolean hasBehavior =
((events != null) && (events.length > 0) && (behaviors.containsKey(events[0])));
Object value = attrMap.get(attrName);
if (value != null && shouldRenderAttribute(value) && !hasBehavior) {
writer.writeAttribute(prefixAttribute(attrName, isXhtml), value, attrName);
} else if (hasBehavior) {
renderHandler(context, component, null, attrName, value, events[0]);
}
}
}
/**
* One and only implementation of save-state - makes all other implementations unnecessary.
*
* @param context
* @return the saved state
*/
public Object saveState(FacesContext context) {
if (component.initialStateMarked()) {
return saveMap(deltaMap);
} else {
return saveMap(defaultMap);
}
}
private static String getSubmitHandler(
FacesContext context,
UIComponent component,
Collection<ClientBehaviorContext.Parameter> params,
boolean preventDefault) {
StringBuilder builder = new StringBuilder(256);
String formClientId = getFormClientId(component, context);
String componentClientId = component.getClientId(context);
builder.append("qab.sf(document.getElementById('");
builder.append(formClientId);
builder.append("'),{");
appendProperty(builder, componentClientId, componentClientId);
if ((null != params) && (!params.isEmpty())) {
for (ClientBehaviorContext.Parameter param : params) {
appendProperty(builder, param.getName(), param.getValue());
}
}
builder.append("})");
if (preventDefault) {
builder.append(";return false");
}
return builder.toString();
}
/**
* One and only implementation of restore state. Makes all other implementations unnecessary.
*
* @param context FacesContext
* @param state the state to be restored.
*/
public void restoreState(FacesContext context, Object state) {
FacesContext fc = FacesContext.getCurrentInstance();
Object[] savedState = (Object[]) state;
component.initialState = (Boolean) savedState[savedState.length - 1];
int length = (savedState.length - 1) / 2;
for (int i = 0; i < length; i++) {
Object value = savedState[i * 2 + 1];
if (Void.TYPE.equals(value)) {
value = null;
}
Serializable serializable = (Serializable) savedState[i * 2];
if (value != null) {
if (value instanceof Collection) {
value = restoreAttachedState(fc, value);
} else if (value instanceof StateHolderSaver) {
value = ((StateHolderSaver) value).restore(context);
} else {
value = (value instanceof Serializable ? value : restoreAttachedState(fc, value));
}
}
if (value instanceof Map) {
for (Map.Entry<String, Object> entry : ((Map<String, Object>) value).entrySet()) {
this.put(serializable, entry.getKey(), entry.getValue());
}
} else if (value instanceof List) {
for (Object o : ((List<Object>) value)) {
this.add(serializable, o);
}
} else {
put(serializable, value);
}
}
}
public static UIComponent addPersistent(
FacesContext context,
ServletRequest req,
UIComponent parent,
ValueExpression binding,
Class childClass)
throws Exception {
if (context == null) context = FacesContext.getCurrentInstance();
if (parent == null) {
UIComponentClassicTagBase parentTag =
(UIComponentClassicTagBase) req.getAttribute("caucho.jsf.parent");
parent = parentTag.getComponentInstance();
BodyContent body = parentTag.getBodyContent();
addVerbatim(parent, body);
}
UIComponent child = null;
if (binding != null) child = (UIComponent) binding.getValue(context.getELContext());
if (child == null) {
child = (UIComponent) childClass.newInstance();
// jsf/3251
if (binding != null) binding.setValue(context.getELContext(), child);
}
if (parent != null) parent.getChildren().add(child);
return child;
}
public static String getFormClientId(UIComponent component, FacesContext context) {
UIComponent parent = component.getParent();
while (parent != null) {
if (parent instanceof UIForm) {
break;
}
parent = parent.getParent();
}
UIForm form = (UIForm) parent;
if (form != null) {
return form.getClientId(context);
}
return null;
}
@Override
protected UIComponent createComponent(FacesContext context, String newId) throws JspException {
Application app = context.getApplication();
UIComponent component;
if (_binding != null) {
component = app.createComponent(_binding, context, getComponentType());
component.setValueExpression("binding", _binding);
} else component = app.createComponent(getComponentType());
component.setId(getId());
setProperties(component);
return component;
}
// 编写处理Action事件的方法
public void processAction(ActionEvent event) {
// 获取当前的FacesContext对象
FacesContext context = FacesContext.getCurrentInstance();
// 获取JSF页面中<f:view.../>元素
UIViewRoot viewRoot = context.getViewRoot();
// 通过ID获取<f:view.../>内的<h:form.../>子元素。
UIComponent comp = viewRoot.findComponent("addForm");
// 通过ID获取<h:form.../>内的第一个<h:inputText.../>子元素。
UIInput input = (UIInput) comp.findComponent("name");
// 通过ID获取<h:form.../>内的第二个<h:inputText.../>子元素。
HtmlInputText price = (HtmlInputText) comp.findComponent("price");
if (input.getValue().equals("疯狂Java讲义")) {
price.setSize(60);
price.setValue("99.0元");
price.setStyle("background-color:#9999ff;" + "font-weight:bold");
}
}
@SuppressWarnings("unchecked")
public static void renderPassThruAttributes(
FacesContext context,
ResponseWriter writer,
UIComponent component,
Attribute[] attributes,
Map<String, List<ClientBehavior>> behaviors)
throws IOException {
if (behaviors == null) {
behaviors = Collections.emptyMap();
}
if ((behaviors.size() < 2)) {
List<String> setAttributes =
(List<String>) component.getAttributes().get(ATTRIBUTES_THAT_ARE_SET_KEY);
if (setAttributes != null) {
renderPassThruAttributesOptimized(
context, writer, component, attributes, setAttributes, behaviors);
}
} else {
renderPassThruAttributesUnoptimized(context, writer, component, attributes, behaviors);
}
List<String> html5PassThru =
(List<String>) component.getAttributes().get(HTML5DataRule.HTML5DATAATTRIBUTES);
if (html5PassThru != null) {
for (String attribute : html5PassThru) {
String value;
if (component.getValueExpression(attribute) != null) {
Object valueObject =
component.getValueExpression(attribute).getValue(context.getELContext());
value = valueObject != null ? valueObject.toString() : null;
} else {
value = (String) component.getAttributes().get(attribute);
}
if (value != null) {
writer.writeAttribute(attribute, value, null);
}
}
}
}
