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* Copyright ${year}, 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.util.Collection;
import java.util.Map;
import javax.el.ValueExpression;
import javax.faces.component.UIComponent;
import javax.faces.component.visit.VisitCallback;
import javax.faces.component.visit.VisitContext;
import javax.faces.component.visit.VisitResult;
import javax.faces.context.FacesContext;
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.AjaxActivatorProps;
import org.richfaces.context.ExtendedVisitContext;
import org.richfaces.context.ExtendedVisitContextMode;
import org.richfaces.log.Logger;
import org.richfaces.log.RichfacesLogger;
import org.richfaces.model.SelectionMode;
import org.richfaces.taglib.ExtendedDataTableHandler;
import org.richfaces.component.attribute.EventsRowProps;
import org.richfaces.component.attribute.IterationProps;
import org.richfaces.component.attribute.RowsProps;
import org.richfaces.component.attribute.SequenceProps;
import org.richfaces.component.attribute.StyleClassProps;
import org.richfaces.component.attribute.StyleProps;
/**
* <p> The <rich:extendedDataTable> component builds on the functionality of the <rich:dataTable> component,
* adding features such as scrolling for the table body (both horizontal and vertical), Ajax loading for vertical
* scrolling, frozen columns, row selection, and rearranging of columns. It also supports all the basic table features
* such as sorting, filtering, and paging using the <rich:dataScroller> component. </p>
*
* @author Konstantin Mishin
*/
@JsfComponent(type = AbstractExtendedDataTable.COMPONENT_TYPE, family = AbstractExtendedDataTable.COMPONENT_FAMILY,
renderer = @JsfRenderer(type = "org.richfaces.ExtendedDataTableRenderer"),
tag = @Tag(name = "extendedDataTable", handlerClass = ExtendedDataTableHandler.class, type = TagType.Facelets))
public abstract class AbstractExtendedDataTable extends UIDataTableBase implements MetaComponentResolver, MetaComponentEncoder, EventsRowProps, RowsProps, StyleProps, StyleClassProps, SequenceProps, IterationProps, AjaxActivatorProps {
public static final String COMPONENT_TYPE = "org.richfaces.ExtendedDataTable";
public static final String COMPONENT_FAMILY = UIDataTableBase.COMPONENT_FAMILY;
public static final String SCROLL = "scroll";
public static final String SUBMITTED_CLIENT_FIRST = "submittedClientFirst";
public static final String OLD_CLIENT_FIRST = "oldClientFirst";
private static final Logger RENDERKIT_LOG = RichfacesLogger.RENDERKIT.getLogger();
protected enum PropertyKeys {
clientFirst, clientRows
}
/**
* Determines how many columns should not be vertically scrollable (should be "frozen").
*/
@Attribute
public abstract int getFrozenColumns();
/**
* Defines selection mode for the table: none, single (only one row can be selected), multiple (Ctrl/Shift keys are used for
* multi-selection), multipleKeyboardFree (clicks are used for multi-selection)
*/
@Attribute
public abstract SelectionMode getSelectionMode();
/**
* The client-side script method to be called after the EDT has been initialized, either after a page load, and an ajax update.
*/
@Attribute(events = @EventName(value = "ready"))
public abstract String getOnready();
/**
* The client-side script method to be called after the selection is changed.
*/
@Attribute(events = @EventName(value = "selectionchange", defaultEvent = true))
public abstract String getOnselectionchange();
/**
* Determines the order in which the columns should be rendered, left to right.
* The Strings are the ids of the columns.
*/
@Attribute
public abstract String[] getColumnsOrder();
/**
* ValueBinding pointing at a property of a String to hold table state
*/
@Attribute
public abstract String getTableState();
/**
* The client-side script method to be called before the selection is changed.
*/
@Attribute(events = @EventName("beforeselectionchange"))
public abstract String getOnbeforeselectionchange();
public String resolveClientId(FacesContext facesContext, UIComponent contextComponent, String metaComponentId) {
if (SCROLL.equals(metaComponentId)) {
Object oldRowKey = getRowKey();
try {
setRowKey(facesContext, null);
return getClientId(facesContext) + MetaComponentResolver.META_COMPONENT_SEPARATOR_CHAR + metaComponentId;
} finally {
try {
setRowKey(facesContext, oldRowKey);
} catch (Exception e) {
RENDERKIT_LOG.error(e.getMessage(), e);
}
}
}
return super.resolveClientId(facesContext, contextComponent, metaComponentId);
}
public void encodeMetaComponent(FacesContext context, String metaComponentId) throws IOException {
if (SCROLL.equals(metaComponentId)) {
Map<String, Object> attributes = getAttributes();
Integer submittedClientFirst = (Integer) attributes.remove(SUBMITTED_CLIENT_FIRST);
if (submittedClientFirst != null) {
attributes.put(OLD_CLIENT_FIRST, getClientFirst());
setClientFirst(submittedClientFirst);
}
}
super.encodeMetaComponent(context, metaComponentId);
}
protected boolean visitDataChildren(VisitContext visitContext, final VisitCallback callback, boolean visitRows) {
if (visitContext instanceof ExtendedVisitContext && visitRows) {
ExtendedVisitContext extendedVisitContext = (ExtendedVisitContext) visitContext;
if (extendedVisitContext.getVisitMode() == ExtendedVisitContextMode.RENDER) {
// TODO nick - call preEncodeBegin(...) and emit PreRenderEvent
setRowKey(visitContext.getFacesContext(), null);
VisitResult result;
result = extendedVisitContext.invokeMetaComponentVisitCallback(this, callback, SCROLL);
if (result == VisitResult.ACCEPT) {
// TODO nick - visit scroll?
} else if (result == VisitResult.COMPLETE) {
return true;
}
}
}
return super.visitDataChildren(visitContext, callback, visitRows);
}
protected int getActualFirst() {
return getFirst() + getClientFirst();
}
protected int getActualRows() {
int rows = getClientRows();
if (rows > 0) {
int r = getRows();
if (r > 0 && r < rows) {
rows = r;
}
} else {
rows = getRows();
}
return rows;
}
public int getClientFirst() {
return (Integer) getStateHelper().eval(PropertyKeys.clientFirst, 0);
}
public void setClientFirst(int clientFirst) {
getStateHelper().put(PropertyKeys.clientFirst, clientFirst);
updateState();
}
public void setFirst(int first) {
super.setFirst(first);
setClientFirst(0);
}
/**
* Use to switch Extended Data Table to AJAX lazy-loading mode. Specify number of rows rows to be loaded with one request.
* If this attribute is set to "0", all rows are loaded. (Default value: 0)
*/
@Attribute(generate = false, defaultValue = "0")
public int getClientRows() {
return (Integer) getStateHelper().eval(PropertyKeys.clientRows, 0);
}
public void setClientRows(int clientRows) {
getStateHelper().put(PropertyKeys.clientRows, clientRows);
updateState();
}
public void setValueBinding(String name, javax.faces.el.ValueBinding binding) {
super.setValueBinding(name, binding);
// TODO nick - clientFirst?
if ("clientRows".equals(name)) {
updateState();
}
}
public void setValueExpression(String name, ValueExpression binding) {
super.setValueExpression(name, binding);
// TODO nick - clientFirst?
if ("clientRows".equals(name)) {
updateState();
}
}
/**
* The collection of keys for currently selected table rows (generated from data model by rowKeyConverter).
*/
@Attribute
public abstract Collection<Object> getSelection();
}