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. First cut of the Externalised UI Actions
- XML Config for UI actions: web-client-config-actions.xml - commented examples are included in the config, I will write up a Wiki page to document it properly :) - Named groups of actions can also be reused across screens (where as previously individual ActionLink components had to be coded up for each screen by hand in the JSP) - Individual Actions can be reused across action groups or defined against a specific action group - UI actions for Browse (Create, More, Document and Space actions), Document and Space details pages now externalised into config - Refactoring of other JSPs to use externalised config - big reduction in hand coded JSF tags and code duplication between pages . Document Details and Space Details pages now have Actions panel on the right hand side instead of an Actions drop-down menu . Several unreported minor bugs fixed where actions conditions or listeners were inconsistent between browse and details pages git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2553 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Kevin Roast
587
source/java/org/alfresco/web/ui/repo/component/UIActions.java
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587
source/java/org/alfresco/web/ui/repo/component/UIActions.java
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@@ -0,0 +1,587 @@
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/*
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* Copyright (C) 2005 Alfresco, Inc.
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*
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* Licensed under the Mozilla Public License version 1.1
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* with a permitted attribution clause. You may obtain a
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* copy of the License at
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*
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* http://www.alfresco.org/legal/license.txt
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied. See the License for the specific
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* language governing permissions and limitations under the
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* License.
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*/
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package org.alfresco.web.ui.repo.component;
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import java.io.IOException;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Map;
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import java.util.ResourceBundle;
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import javax.faces.component.NamingContainer;
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import javax.faces.component.UIComponent;
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import javax.faces.component.UIParameter;
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import javax.faces.context.FacesContext;
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import javax.faces.context.ResponseWriter;
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import javax.faces.el.ValueBinding;
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import org.alfresco.config.Config;
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import org.alfresco.web.app.Application;
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import org.alfresco.web.bean.repository.Node;
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import org.alfresco.web.config.ActionsConfigElement;
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import org.alfresco.web.config.ActionsConfigElement.ActionDefinition;
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import org.alfresco.web.config.ActionsConfigElement.ActionGroup;
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import org.alfresco.web.ui.common.ComponentConstants;
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import org.alfresco.web.ui.common.ConstantMethodBinding;
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import org.alfresco.web.ui.common.Utils;
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import org.alfresco.web.ui.common.component.SelfRenderingComponent;
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import org.alfresco.web.ui.common.component.UIActionLink;
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import org.alfresco.web.ui.repo.component.evaluator.ActionInstanceEvaluator;
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import org.alfresco.web.ui.repo.component.evaluator.PermissionEvaluator;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.apache.myfaces.taglib.UIComponentTagUtils;
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/**
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* @author kevinr
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*/
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public class UIActions extends SelfRenderingComponent
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{
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// ------------------------------------------------------------------------------
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// Component implementation
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private static final String ATTR_VALUE = "value";
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private static Log logger = LogFactory.getLog(UIActions.class);
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private static final String ATTR_SHOWLINK = "showLink";
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private static final String ATTR_STYLECLASS = "styleClass";
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private static final String ATTR_STYLE = "style";
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private static final String ACTION_CONTEXT = "actionContext";
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private static final String RENDERER_ACTIONLINK = "org.alfresco.faces.ActionLinkRenderer";
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private static final String COMPONENT_ACTIONLINK = "org.alfresco.faces.ActionLink";
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private static final String COMPONENT_PERMISSIONEVAL = "org.alfresco.faces.PermissionEvaluator";
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private static final String COMPONENT_ACTIONEVAL = "org.alfresco.faces.ActionInstanceEvaluator";
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private final static Class ACTION_CLASS_ARGS[] = {javax.faces.event.ActionEvent.class};
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/**
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* @see javax.faces.component.UIComponent#getFamily()
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*/
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public String getFamily()
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{
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return "org.alfresco.faces.Controls";
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}
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/**
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* @see javax.faces.component.StateHolder#restoreState(javax.faces.context.FacesContext, java.lang.Object)
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*/
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public void restoreState(FacesContext context, Object state)
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{
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Object values[] = (Object[])state;
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// standard component attributes are restored by the super class
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super.restoreState(context, values[0]);
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this.value = (String)values[1];
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this.showLink = (Boolean)values[2];
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this.verticalSpacing = (Integer)values[3];
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}
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/**
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* @see javax.faces.component.StateHolder#saveState(javax.faces.context.FacesContext)
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*/
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public Object saveState(FacesContext context)
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{
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Object values[] = new Object[4];
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// standard component attributes are saved by the super class
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values[0] = super.saveState(context);
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values[1] = this.value;
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values[2] = this.showLink;
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values[3] = this.verticalSpacing;
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return (values);
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}
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/**
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* @see javax.faces.component.UIComponentBase#encodeBegin(javax.faces.context.FacesContext)
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*/
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public void encodeBegin(FacesContext context) throws IOException
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{
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if (isRendered() == false)
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{
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return;
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}
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if (logger.isDebugEnabled())
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logger.debug("encodeBegin() for <r:actions/> Id: " + getId() + " groupId: " + getValue());
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// put the context object into the requestMap so it is accessable
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// by any child component value binding expressions
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Map requestMap = getFacesContext().getExternalContext().getRequestMap();
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requestMap.put(ACTION_CONTEXT, getContext());
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if (getChildCount() != 0)
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{
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if (logger.isDebugEnabled())
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logger.debug("---already built component tree for actions.");
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return;
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}
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ResponseWriter out = context.getResponseWriter();
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String groupId = getValue();
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if (groupId != null && groupId.length() != 0)
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{
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Config config = Application.getConfigService(context).getConfig("Actions");
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if (config != null)
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{
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// find the Actions specific config element
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ActionsConfigElement actionConfig =
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(ActionsConfigElement)config.getConfigElement(ActionsConfigElement.CONFIG_ELEMENT_ID);
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if (actionConfig != null)
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{
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// and lookup our ActionGroup by Id
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ActionGroup actionGroup = actionConfig.getActionGroup(groupId);
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if (actionGroup != null)
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{
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// render the action group component tree
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if (logger.isDebugEnabled())
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logger.debug("-constructing ActionGroup: " + groupId);
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buildActionGroup(context, actionGroup);
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}
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else
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{
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logger.warn("Unable to find specified Action Group config ID: " + groupId);
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}
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}
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}
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}
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}
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/**
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* @see javax.faces.component.UIComponentBase#getRendersChildren()
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*/
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public boolean getRendersChildren()
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{
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return true;
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}
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/**
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* @see javax.faces.component.UIComponentBase#encodeChildren(javax.faces.context.FacesContext)
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*/
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public void encodeChildren(FacesContext context) throws IOException
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{
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ResponseWriter out = context.getResponseWriter();
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int verticalSpacing = getVerticalSpacing();
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if (verticalSpacing != 0)
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{
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out.write("<table cellspacing='");
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out.write(verticalSpacing);
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out.write("'");
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if (getAttributes().get(ATTR_STYLE) != null)
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{
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outputAttribute(out, getAttributes().get(ATTR_STYLE), ATTR_STYLE);
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}
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if (getAttributes().get(ATTR_STYLECLASS) != null)
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{
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outputAttribute(out, getAttributes().get(ATTR_STYLECLASS), "class");
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}
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out.write(">");
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}
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for (Iterator i=getChildren().iterator(); i.hasNext(); /**/)
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{
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UIComponent child = (UIComponent)i.next();
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Utils.encodeRecursive(context, child);
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}
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if (verticalSpacing != 0)
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{
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out.write("</table>");
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}
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}
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/**
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* @see javax.faces.component.UIComponentBase#encodeEnd(javax.faces.context.FacesContext)
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*/
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public void encodeEnd(FacesContext context) throws IOException
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{
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if (logger.isDebugEnabled())
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logger.debug("encodeEnd() for <r:actions/> Id: " + getId());
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Map requestMap = getFacesContext().getExternalContext().getRequestMap();
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requestMap.remove(ACTION_CONTEXT);
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}
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/**
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* Build an action group as reusable UIActionLink components.
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*
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* @param context
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* @param actionGroup
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*/
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private void buildActionGroup(FacesContext context, ActionGroup actionGroup)
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throws IOException
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{
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javax.faces.application.Application facesApp = context.getApplication();
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Node node = getContext();
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ResourceBundle messages = Application.getBundle(context);
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// get overriding display attributes
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String style = (String)getAttributes().get(ATTR_STYLE);
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String styleClass = (String)getAttributes().get(ATTR_STYLECLASS);
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Boolean showLink = null;
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if (getAttributes().get(ATTR_SHOWLINK) != null)
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{
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showLink = (Boolean)getAttributes().get(ATTR_SHOWLINK);
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}
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// process each ActionDefinition in the order they were defined
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for (ActionDefinition actionDef : actionGroup)
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{
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if (logger.isDebugEnabled())
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logger.debug("---processing ActionDefinition: " + actionDef.getId());
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UIComponent currentParent = this;
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// build a permissions evaluator component to wrap the actionlink
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PermissionEvaluator permEval = null;
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List<String> allow = actionDef.getAllowPermissions();
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if (allow != null && allow.size() != 0)
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{
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// found some permissions to test
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permEval = (PermissionEvaluator)facesApp.createComponent(COMPONENT_PERMISSIONEVAL);
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String condition = allow.get(0);
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if (allow.size() != 1)
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{
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for (int i=1; i<allow.size(); i++)
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{
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condition += "," + allow.get(i);
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}
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}
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permEval.setAllow(condition);
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}
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List<String> deny = actionDef.getDenyPermissions();
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if (deny != null && deny.size() != 0)
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{
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if (permEval == null)
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{
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permEval = (PermissionEvaluator)facesApp.createComponent(COMPONENT_PERMISSIONEVAL);
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}
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String condition = deny.get(0);
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if (deny.size() != 1)
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{
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for (int i=1; i<deny.size(); i++)
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{
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condition += "," + deny.get(i);
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}
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}
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permEval.setDeny(condition);
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}
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if (permEval != null)
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{
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// add the permission evaluator component and walk down the hierarchy
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permEval.setId(createUniqueId());
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permEval.setValueBinding(ATTR_VALUE, facesApp.createValueBinding("#{" + ACTION_CONTEXT + "}"));
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if (logger.isDebugEnabled())
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logger.debug("-----adding PermissionEvaluator to action");
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currentParent.getChildren().add(permEval);
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currentParent = permEval;
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}
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// now prepare any code based evaluators that may be present
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if (actionDef.Evaluator != null)
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{
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ActionInstanceEvaluator evaluator =
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(ActionInstanceEvaluator)facesApp.createComponent(COMPONENT_ACTIONEVAL);
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evaluator.setId(createUniqueId());
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evaluator.setEvaluator(actionDef.Evaluator);
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evaluator.setValueBinding(ATTR_VALUE, facesApp.createValueBinding("#{" + ACTION_CONTEXT + "}"));
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// add the action evaluator component and walk down the hiearchy
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if (logger.isDebugEnabled())
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logger.debug("-----adding ActionEvaluator to action");
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currentParent.getChildren().add(evaluator);
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currentParent = evaluator;
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}
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// now build the UIActionLink component for this action
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UIActionLink control = (UIActionLink)facesApp.createComponent(COMPONENT_ACTIONLINK);
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control.setRendererType(RENDERER_ACTIONLINK);
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control.setId(actionDef.getId() + createUniqueId());
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if (actionDef.Action != null)
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{
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if (UIComponentTagUtils.isValueReference(actionDef.Action))
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{
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control.setAction(facesApp.createMethodBinding(actionDef.Action, null));
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}
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else
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{
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control.setAction(new ConstantMethodBinding(actionDef.Action));
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}
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}
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if (actionDef.ActionListener != null)
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{
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control.setActionListener(facesApp.createMethodBinding(actionDef.ActionListener, ACTION_CLASS_ARGS));
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}
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if (style != null)
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{
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control.getAttributes().put(ATTR_STYLE, style);
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}
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else if (actionDef.Style != null)
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{
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control.getAttributes().put(ATTR_STYLE, actionDef.Style);
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}
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if (styleClass != null)
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{
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control.getAttributes().put(ATTR_STYLECLASS, styleClass);
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}
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else if (actionDef.StyleClass != null)
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{
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control.getAttributes().put(ATTR_STYLECLASS, actionDef.StyleClass);
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}
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if (showLink != null)
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{
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control.setShowLink(showLink.booleanValue());
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}
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else
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{
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control.setShowLink(actionDef.ShowLink);
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}
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if (actionDef.Onclick != null)
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{
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if (UIComponentTagUtils.isValueReference(actionDef.Onclick))
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||||
{
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control.setValueBinding("onclick", facesApp.createValueBinding(actionDef.Onclick));
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}
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else
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{
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control.setOnclick(actionDef.Onclick);
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}
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}
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if (actionDef.Href != null)
|
||||
{
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if (UIComponentTagUtils.isValueReference(actionDef.Href))
|
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{
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control.setValueBinding("href", facesApp.createValueBinding(actionDef.Href));
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}
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else
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||||
{
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control.setHref(actionDef.Href);
|
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}
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}
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control.setTarget(actionDef.Target);
|
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control.setImage(actionDef.Image);
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if (actionDef.TooltipMsg != null)
|
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{
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control.setTooltip(messages.getString(actionDef.TooltipMsg));
|
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}
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else if (actionDef.Tooltip != null)
|
||||
{
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||||
if (UIComponentTagUtils.isValueReference(actionDef.Tooltip))
|
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{
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control.setValueBinding("tooltip", facesApp.createValueBinding(actionDef.Tooltip));
|
||||
}
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||||
else
|
||||
{
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control.setValue(actionDef.Tooltip);
|
||||
}
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||||
}
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if (actionDef.LabelMsg != null)
|
||||
{
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||||
control.setValue(messages.getString(actionDef.LabelMsg));
|
||||
}
|
||||
else if (actionDef.Label != null)
|
||||
{
|
||||
if (UIComponentTagUtils.isValueReference(actionDef.Label))
|
||||
{
|
||||
control.setValueBinding("value", facesApp.createValueBinding(actionDef.Label));
|
||||
}
|
||||
else
|
||||
{
|
||||
control.setValue(actionDef.Label);
|
||||
}
|
||||
}
|
||||
|
||||
// build any child params <f:param> components that are needed.
|
||||
Map<String, String> params = actionDef.getParams();
|
||||
if (params != null)
|
||||
{
|
||||
for (String name : params.keySet())
|
||||
{
|
||||
UIParameter param =
|
||||
(UIParameter)facesApp.createComponent(ComponentConstants.JAVAX_FACES_PARAMETER);
|
||||
param.setId(createUniqueId());
|
||||
param.setName(name);
|
||||
String value = params.get(name);
|
||||
if (UIComponentTagUtils.isValueReference(value))
|
||||
{
|
||||
param.setValueBinding(ATTR_VALUE, facesApp.createValueBinding(value));
|
||||
}
|
||||
else
|
||||
{
|
||||
param.setValue(value);
|
||||
}
|
||||
control.getChildren().add(param);
|
||||
}
|
||||
}
|
||||
|
||||
if (logger.isDebugEnabled())
|
||||
logger.debug("-----adding UIActionLink component for: " + actionDef.getId());
|
||||
currentParent.getChildren().add(control);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// ------------------------------------------------------------------------------
|
||||
// Strongly typed component property accessors
|
||||
|
||||
/**
|
||||
* Get the value (for this component the value is the ID of an Action Group config block)
|
||||
*
|
||||
* @return the value
|
||||
*/
|
||||
public String getValue()
|
||||
{
|
||||
if (this.value == null)
|
||||
{
|
||||
ValueBinding vb = getValueBinding(ATTR_VALUE);
|
||||
if (vb != null)
|
||||
{
|
||||
this.value = (String)vb.getValue(getFacesContext());
|
||||
}
|
||||
}
|
||||
return this.value;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set the value (for this component the value is the ID of an Action Group config block)
|
||||
*
|
||||
* @param value the value
|
||||
*/
|
||||
public void setValue(String value)
|
||||
{
|
||||
this.value = value;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get the Node that forms the context object for this group of actions
|
||||
*
|
||||
* @return the context
|
||||
*/
|
||||
public Node getContext()
|
||||
{
|
||||
ValueBinding vb = getValueBinding("context");
|
||||
if (vb != null)
|
||||
{
|
||||
this.context = (Node)vb.getValue(getFacesContext());
|
||||
}
|
||||
|
||||
return this.context;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set the the Node that forms the context object for this group of actions
|
||||
*
|
||||
* @param context the context
|
||||
*/
|
||||
public void setContext(Node context)
|
||||
{
|
||||
this.context = context;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get whether to show the link as well as the image if specified
|
||||
*
|
||||
* @return true to show the link as well as the image if specified
|
||||
*/
|
||||
public boolean getShowLink()
|
||||
{
|
||||
ValueBinding vb = getValueBinding(ATTR_SHOWLINK);
|
||||
if (vb != null)
|
||||
{
|
||||
this.showLink = (Boolean)vb.getValue(getFacesContext());
|
||||
}
|
||||
|
||||
if (this.showLink != null)
|
||||
{
|
||||
return this.showLink.booleanValue();
|
||||
}
|
||||
else
|
||||
{
|
||||
// return default
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Set whether to show the link as well as the image if specified
|
||||
*
|
||||
* @param showLink Whether to show the link as well as the image if specified
|
||||
*/
|
||||
public void setShowLink(boolean showLink)
|
||||
{
|
||||
this.showLink = Boolean.valueOf(showLink);
|
||||
}
|
||||
|
||||
/**
|
||||
* @return Returns the vertical spacing value in pixels or zero if not set.
|
||||
*/
|
||||
public int getVerticalSpacing()
|
||||
{
|
||||
ValueBinding vb = getValueBinding("verticalSpacing");
|
||||
if (vb != null)
|
||||
{
|
||||
this.verticalSpacing = (Integer)vb.getValue(getFacesContext());
|
||||
}
|
||||
|
||||
if (this.verticalSpacing != null)
|
||||
{
|
||||
return this.verticalSpacing;
|
||||
}
|
||||
else
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @param verticalSpacing The verticalSpacing to set.
|
||||
*/
|
||||
public void setVerticalSpacing(int verticalSpacing)
|
||||
{
|
||||
this.verticalSpacing = verticalSpacing;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return a unique ID for a JSF component
|
||||
*/
|
||||
private static String createUniqueId()
|
||||
{
|
||||
return "_id_" + Short.toString(++id);
|
||||
}
|
||||
|
||||
|
||||
// ------------------------------------------------------------------------------
|
||||
// Private data
|
||||
|
||||
/** True to show the link as well as the image if specified */
|
||||
private Boolean showLink = null;
|
||||
|
||||
/** For this component the value is the ID of an Action Group config block */
|
||||
private String value = null;
|
||||
|
||||
/** The context Node for the action group */
|
||||
private Node context = null;
|
||||
|
||||
/** Vertical layout spacing */
|
||||
private Integer verticalSpacing = null;
|
||||
|
||||
private static short id = 0;
|
||||
}
|
||||
@@ -56,6 +56,8 @@ public class UISearchCustomProperties extends SelfRenderingComponent implements
|
||||
public static final String PREFIX_DATE_TO = "to_";
|
||||
public static final String PREFIX_DATE_FROM = "from_";
|
||||
|
||||
private static final String VALUE = "value";
|
||||
|
||||
private static final String MSG_TO = "to";
|
||||
private static final String MSG_FROM = "from";
|
||||
|
||||
@@ -252,12 +254,12 @@ public class UISearchCustomProperties extends SelfRenderingComponent implements
|
||||
{
|
||||
control = (UISelectBoolean)facesApp.createComponent(ComponentConstants.JAVAX_FACES_SELECT_BOOLEAN);
|
||||
control.setRendererType(ComponentConstants.JAVAX_FACES_CHECKBOX);
|
||||
control.setValueBinding("value", vb);
|
||||
control.setValueBinding(VALUE, vb);
|
||||
}
|
||||
else if (typeName.equals(DataTypeDefinition.CATEGORY))
|
||||
{
|
||||
control = (UICategorySelector)facesApp.createComponent(RepoConstants.ALFRESCO_FACES_CATEGORY_SELECTOR);
|
||||
control.setValueBinding("value", vb);
|
||||
control.setValueBinding(VALUE, vb);
|
||||
}
|
||||
else if (typeName.equals(DataTypeDefinition.DATETIME) || typeName.equals(DataTypeDefinition.DATE))
|
||||
{
|
||||
@@ -275,7 +277,7 @@ public class UISearchCustomProperties extends SelfRenderingComponent implements
|
||||
checkbox.setId(context.getViewRoot().createUniqueId());
|
||||
ValueBinding vbCheckbox = facesApp.createValueBinding(
|
||||
"#{" + beanBinding + "[\"" + propDef.getName().toString() + "\"]}");
|
||||
checkbox.setValueBinding("value", vbCheckbox);
|
||||
checkbox.setValueBinding(VALUE, vbCheckbox);
|
||||
control.getChildren().add(checkbox);
|
||||
|
||||
// main display label
|
||||
@@ -300,7 +302,7 @@ public class UISearchCustomProperties extends SelfRenderingComponent implements
|
||||
inputFromDate.getAttributes().put("showTime", showTime);
|
||||
ValueBinding vbFromDate = facesApp.createValueBinding(
|
||||
"#{" + beanBinding + "[\"" + PREFIX_DATE_FROM + propDef.getName().toString() + "\"]}");
|
||||
inputFromDate.setValueBinding("value", vbFromDate);
|
||||
inputFromDate.setValueBinding(VALUE, vbFromDate);
|
||||
control.getChildren().add(inputFromDate);
|
||||
|
||||
// to date label
|
||||
@@ -318,13 +320,13 @@ public class UISearchCustomProperties extends SelfRenderingComponent implements
|
||||
inputToDate.getAttributes().put("showTime", showTime);
|
||||
ValueBinding vbToDate = facesApp.createValueBinding(
|
||||
"#{" + beanBinding + "[\"" + PREFIX_DATE_TO + propDef.getName().toString() + "\"]}");
|
||||
inputToDate.setValueBinding("value", vbToDate);
|
||||
inputToDate.setValueBinding(VALUE, vbToDate);
|
||||
control.getChildren().add(inputToDate);
|
||||
}
|
||||
else if (typeName.equals(DataTypeDefinition.NODE_REF))
|
||||
{
|
||||
control = (UISpaceSelector)facesApp.createComponent(RepoConstants.ALFRESCO_FACES_SPACE_SELECTOR);
|
||||
control.setValueBinding("value", vb);
|
||||
control.setValueBinding(VALUE, vb);
|
||||
}
|
||||
else
|
||||
{
|
||||
@@ -333,7 +335,7 @@ public class UISearchCustomProperties extends SelfRenderingComponent implements
|
||||
control.setRendererType(ComponentConstants.JAVAX_FACES_TEXT);
|
||||
control.getAttributes().put("size", "28");
|
||||
control.getAttributes().put("maxlength", "1024");
|
||||
control.setValueBinding("value", vb);
|
||||
control.setValueBinding(VALUE, vb);
|
||||
}
|
||||
|
||||
// set up the common aspects of the control
|
||||
|
||||
@@ -0,0 +1,99 @@
|
||||
/*
|
||||
* Copyright (C) 2005 Alfresco, Inc.
|
||||
*
|
||||
* Licensed under the Mozilla Public License version 1.1
|
||||
* with a permitted attribution clause. You may obtain a
|
||||
* copy of the License at
|
||||
*
|
||||
* http://www.alfresco.org/legal/license.txt
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing,
|
||||
* software distributed under the License is distributed on an
|
||||
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
|
||||
* either express or implied. See the License for the specific
|
||||
* language governing permissions and limitations under the
|
||||
* License.
|
||||
*/
|
||||
package org.alfresco.web.ui.repo.component.evaluator;
|
||||
|
||||
import javax.faces.context.FacesContext;
|
||||
|
||||
import org.alfresco.web.action.ActionEvaluator;
|
||||
import org.alfresco.web.bean.repository.Node;
|
||||
import org.alfresco.web.ui.common.component.evaluator.BaseEvaluator;
|
||||
|
||||
/**
|
||||
* Evaluator for executing an ActionEvaluator instance.
|
||||
*
|
||||
* @author Kevin Roast
|
||||
*/
|
||||
public class ActionInstanceEvaluator extends BaseEvaluator
|
||||
{
|
||||
/**
|
||||
* Evaluate by executing the specified action instance evaluator.
|
||||
*
|
||||
* @return true to allow rendering of child components, false otherwise
|
||||
*/
|
||||
public boolean evaluate()
|
||||
{
|
||||
boolean result = false;
|
||||
|
||||
try
|
||||
{
|
||||
Object obj = getValue();
|
||||
if (obj instanceof Node)
|
||||
{
|
||||
result = getEvaluator().evaluate((Node)obj);
|
||||
}
|
||||
}
|
||||
catch (Exception err)
|
||||
{
|
||||
// return default value on error
|
||||
s_logger.debug("Error during ActionInstanceEvaluator evaluation: " + err.getMessage());
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
/**
|
||||
* @see javax.faces.component.StateHolder#restoreState(javax.faces.context.FacesContext, java.lang.Object)
|
||||
*/
|
||||
public void restoreState(FacesContext context, Object state)
|
||||
{
|
||||
Object values[] = (Object[])state;
|
||||
// standard component attributes are restored by the super class
|
||||
super.restoreState(context, values[0]);
|
||||
this.evaluator = (ActionEvaluator)values[1];
|
||||
}
|
||||
|
||||
/**
|
||||
* @see javax.faces.component.StateHolder#saveState(javax.faces.context.FacesContext)
|
||||
*/
|
||||
public Object saveState(FacesContext context)
|
||||
{
|
||||
Object values[] = new Object[2];
|
||||
// standard component attributes are saved by the super class
|
||||
values[0] = super.saveState(context);
|
||||
values[1] = this.evaluator;
|
||||
return (values);
|
||||
}
|
||||
|
||||
/**
|
||||
* @return the ActionEvaluator to execute
|
||||
*/
|
||||
public ActionEvaluator getEvaluator()
|
||||
{
|
||||
return this.evaluator;
|
||||
}
|
||||
|
||||
/**
|
||||
* @param evaluator The ActionEvaluator to execute
|
||||
*/
|
||||
public void setEvaluator(ActionEvaluator evaluator)
|
||||
{
|
||||
this.evaluator = evaluator;
|
||||
}
|
||||
|
||||
|
||||
private ActionEvaluator evaluator;
|
||||
}
|
||||
Reference in New Issue
Block a user