/*
* JBoss, Home of Professional Open Source
* Copyright 2010, Red Hat, Inc. and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.richfaces.component;
import java.io.IOException;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.el.ELException;
import javax.el.ExpressionFactory;
import javax.el.MethodExpression;
import javax.el.MethodNotFoundException;
import javax.faces.component.UIComponent;
import javax.faces.component.UIInput;
import javax.faces.component.visit.VisitCallback;
import javax.faces.component.visit.VisitContext;
import javax.faces.component.visit.VisitResult;
import javax.faces.context.FacesContext;
import javax.faces.model.ArrayDataModel;
import javax.faces.model.DataModel;
import javax.faces.model.ListDataModel;
import javax.faces.model.ResultDataModel;
import javax.faces.model.ResultSetDataModel;
import javax.servlet.jsp.jstl.sql.Result;
import org.richfaces.cdk.annotations.Attribute;
import org.richfaces.cdk.annotations.EventName;
import org.richfaces.cdk.annotations.JsfComponent;
import org.richfaces.cdk.annotations.JsfRenderer;
import org.richfaces.cdk.annotations.Tag;
import org.richfaces.cdk.annotations.TagType;
import org.richfaces.component.attribute.AutocompleteProps;
import org.richfaces.component.attribute.DisabledProps;
import org.richfaces.component.attribute.EventsKeyProps;
import org.richfaces.component.attribute.EventsMouseProps;
import org.richfaces.component.attribute.FocusProps;
import org.richfaces.component.attribute.StyleClassProps;
import org.richfaces.component.attribute.StyleProps;
import org.richfaces.context.ExtendedVisitContext;
import org.richfaces.context.ExtendedVisitContextMode;
import org.richfaces.log.Logger;
import org.richfaces.log.RichfacesLogger;
import org.richfaces.renderkit.MetaComponentRenderer;
import org.richfaces.view.facelets.AutocompleteHandler;
/**
* <p>The <rich:autocomplete> component is an auto-completing input-box with built-in Ajax capabilities. It
* supports client-side suggestions, browser-like selection, and customization of the look and feel.</p>
*
* @author Nick Belaevski
* @author <a href="http://community.jboss.org/people/bleathem">Brian Leathem</a>
*/
@JsfComponent(tag = @Tag(type = TagType.Facelets, handlerClass = AutocompleteHandler.class),
renderer = @JsfRenderer(type = "org.richfaces.AutocompleteRenderer"))
public abstract class AbstractAutocomplete extends UIInput implements MetaComponentResolver, MetaComponentEncoder, DisabledProps, FocusProps, EventsKeyProps, EventsMouseProps, StyleClassProps, StyleProps, AutocompleteProps {
public static final String ITEMS_META_COMPONENT_ID = "items";
public static final String COMPONENT_TYPE = "org.richfaces.Autocomplete";
public static final String COMPONENT_FAMILY = UIInput.COMPONENT_FAMILY;
private static final Logger LOGGER = RichfacesLogger.COMPONENTS.getLogger();
/**
* A value to set in the target input element on a choice suggestion that isn't shown in the suggestion table.
* It can be used for descriptive output comments or suggestions. If not set, all text in the suggestion row is set as a value
*/
@Attribute(literal = false)
public abstract Object getFetchValue();
/**
* Assigns one or more space-separated CSS class names to the selected suggestion entry
*/
@Attribute(defaultValue = "rf-au-itm-sel")
public abstract String getSelectedItemClass();
/**
* Assigns one or more space-separated CSS class names to the content of the popup suggestion element
*/
@Attribute()
public abstract String getPopupClass();
/**
* Assigns one or more space-separated CSS class names to the input element
*/
@Attribute()
public abstract String getInputClass();
/**
* <p>
* Type of the layout encoded using nested components should be defined using layout attribute.
* Possible values are:
* </p>
* <dl>
* <dt>list</dt>
* <dd>suggestions wrapped to HTML unordered list</dd>
* <dt>div</dt>
* <dd>suggestions wrapped with just div element</dd>
* <dt>table</dt>
* <dd>suggestions are encoded as table rows, column definitions are required in this case</dd>
* </dl>
* <p>Default: div</p>
*/
@Attribute
public abstract String getLayout();
/**
* <p>Allow a user to enter multiple values separated by specific characters. As the user types, a suggestion will
* present as normal. When they enter the specified token character, this begins a new suggestion process,
* and the component will then only use text entered after the token character for suggestions.</p>
*
* <p>Make sure that no character defined in tokens is part of any suggestion value. E.g. do not use space as a token
* if you expect to allow spaces in suggestion values.</p>
*
* <p>When tokens defined, they can be naturally separated by space character - input separated by tokens ', ' or ' ,'
* will be considered as it would be ',' token without any space.</p>
*/
@Attribute
public abstract String getTokens();
/**
* Causes the combo-box to fill the text field box with a matching suggestion as the user types
*/
@Attribute(defaultValue = "true")
public abstract boolean isAutofill();
/**
* <p>Boolean value indicating whether to display a button to expand the popup suggestion element</p>
* <p>Default: false</p>
*/
@Attribute
public abstract boolean isShowButton();
/**
* Boolean value indicating whether the first suggestion item is selected as the user types
* <p>Default: true</p>
*/
@Attribute(defaultValue = "true")
public abstract boolean isSelectFirst();
/**
* <p>
* A javascript function used to filter the result list returned from the ajax call to the server.
* This function should have two parameters; subString(current input value considering tokens)
* and value (currently iterated item value) and return boolean flag which means if the value satisfies the substring passed.
* The function will be called for every available suggestion in order to construct a new list of suggestions.
* </p>
* <p>Default: A javascript method called <i>startsWith</i></p>
*/
@Attribute
public abstract String getClientFilterFunction();
// ----------- Event Attributes
/**
* Javascript code executed when an item is selected
*/
@Attribute(events = @EventName("selectitem"))
public abstract String getOnselectitem();
/**
* Javascript code executed when this element loses focus and its value has been modified since gaining focus.
*/
@Attribute(events = @EventName(value = "change", defaultEvent = true))
public abstract String getOnchange();
// ----------- List events
/**
* Javascript code executed when a pointer button is clicked over the popup list element.
*/
@Attribute(events = @EventName("listclick"))
public abstract String getOnlistclick();
/**
* Javascript code executed when a pointer button is double clicked over this element.
*/
@Attribute(events = @EventName("listdblclick"))
public abstract String getOnlistdblclick();
/**
* Javascript code executed when a pointer button is pressed down over this element.
*/
@Attribute(events = @EventName("listmousedown"))
public abstract String getOnlistmousedown();
/**
* Javascript code executed when a pointer button is released over this element.
*/
@Attribute(events = @EventName("listmouseup"))
public abstract String getOnlistmouseup();
/**
* Javascript code executed when a pointer button is moved onto this element.
*/
@Attribute(events = @EventName("listmouseover"))
public abstract String getOnlistmouseover();
/**
* Javascript code executed when a pointer button is moved within this element.
*/
@Attribute(events = @EventName("listmousemove"))
public abstract String getOnlistmousemove();
/**
* Javascript code executed when a pointer button is moved away from this element.
*/
@Attribute(events = @EventName("listmouseout"))
public abstract String getOnlistmouseout();
/**
* Javascript code executed when a key is pressed and released over this element.
*/
@Attribute(events = @EventName("listkeypress"))
public abstract String getOnlistkeypress();
/**
* Javascript code executed when a key is pressed down over this element.
*/
@Attribute(events = @EventName("listkeydown"))
public abstract String getOnlistkeydown();
/**
* Javascript code executed when a key is released over this element.
*/
@Attribute(events = @EventName("listkeyup"))
public abstract String getOnlistkeyup();
// ----------- selected ajax props
/**
* The client-side script method to be called before an ajax request.
*/
@Attribute(events = @EventName("begin"))
public abstract String getOnbegin();
/**
* The client-side script method to be called when an error has occurred during Ajax communications
*/
@Attribute(events = @EventName("error"))
public abstract String getOnerror();
/**
* The client-side script method to be called after the DOM is updated
*/
@Attribute(events = @EventName("complete"))
public abstract String getOncomplete();
/**
* The client-side script method to be called after the ajax response comes back, but before the DOM is updated
*/
@Attribute(events = @EventName("beforedomupdate"))
public abstract String getOnbeforedomupdate();
public DataModel<Object> getItems(FacesContext facesContext, String value) {
return getItems(facesContext, this, value);
}
public static DataModel<Object> getItems(FacesContext facesContext, UIComponent component, String value) {
if (!(component instanceof AutocompleteProps)) {
return null;
}
AutocompleteProps autocomplete = (AutocompleteProps) component;
Object itemsObject = null;
MethodExpression autocompleteMethod = autocomplete.getAutocompleteMethod();
if (autocompleteMethod != null) {
try {
try {
itemsObject = autocompleteMethod.invoke(facesContext.getELContext(), new Object[] { facesContext,
component, value });
} catch (MethodNotFoundException e1) {
try {
// fall back to evaluating an expression assuming there is just one parameter (RF-11469)
itemsObject = autocomplete.getAutocompleteMethodWithOneParameter().invoke(facesContext.getELContext(), new Object[] { value });
} catch (MethodNotFoundException e2) {
ExpressionFactory expressionFactory = facesContext.getApplication().getExpressionFactory();
autocompleteMethod = expressionFactory.createMethodExpression(facesContext.getELContext(),
autocompleteMethod.getExpressionString(), Object.class, new Class[] { String.class });
itemsObject = autocompleteMethod.invoke(facesContext.getELContext(), new Object[] { value });
}
}
} catch (ELException ee) {
LOGGER.error(ee.getMessage(), ee);
}
} else {
itemsObject = autocomplete.getAutocompleteList();
}
DataModel result;
if (itemsObject instanceof Object[]) {
result = new ArrayDataModel((Object[]) itemsObject);
} else if (itemsObject instanceof List) {
result = new ListDataModel((List<Object>) itemsObject);
} else if (itemsObject instanceof Result) {
result = new ResultDataModel((Result) itemsObject);
} else if (itemsObject instanceof ResultSet) {
result = new ResultSetDataModel((ResultSet) itemsObject);
} else if (itemsObject != null) {
List<Object> temp = new ArrayList<Object>();
Iterator<Object> iterator = ((Iterable<Object>) itemsObject).iterator();
while (iterator.hasNext()) {
temp.add(iterator.next());
}
result = new ListDataModel(temp);
} else {
result = new ListDataModel();
}
return result;
}
public String resolveClientId(FacesContext facesContext, UIComponent contextComponent, String metaComponentId) {
if (ITEMS_META_COMPONENT_ID.equals(metaComponentId)) {
return getClientId(facesContext) + MetaComponentResolver.META_COMPONENT_SEPARATOR_CHAR + metaComponentId;
}
return null;
}
public String substituteUnresolvedClientId(FacesContext facesContext, UIComponent contextComponent, String metaComponentId) {
return null;
}
@Override
public boolean visitTree(VisitContext context, VisitCallback callback) {
if (context instanceof ExtendedVisitContext) {
ExtendedVisitContext extendedVisitContext = (ExtendedVisitContext) context;
if (extendedVisitContext.getVisitMode() == ExtendedVisitContextMode.RENDER) {
VisitResult result = extendedVisitContext.invokeMetaComponentVisitCallback(this, callback,
ITEMS_META_COMPONENT_ID);
if (result == VisitResult.COMPLETE) {
return true;
} else if (result == VisitResult.REJECT) {
return false;
}
}
}
return super.visitTree(context, callback);
}
public void encodeMetaComponent(FacesContext context, String metaComponentId) throws IOException {
((MetaComponentRenderer) getRenderer(context)).encodeMetaComponent(context, this, metaComponentId);
}
}