/**
* Copyright (C) 2009 eXo Platform SAS.
*
* 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.exoplatform.webui.form;
import java.io.Writer;
import java.util.ArrayList;
import java.util.List;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
import org.exoplatform.commons.serialization.api.annotations.Serialized;
import org.exoplatform.commons.utils.HTMLEntityEncoder;
import org.exoplatform.webui.application.WebuiRequestContext;
import org.exoplatform.webui.core.UIComponent;
import org.exoplatform.webui.core.model.SelectItemOption;
/**
* Represents a select element
*
*/
@Serialized
public class UIFormSelectBox extends UIFormStringInput {
/**
* It make SelectBox's ability to select multiple values
*/
private boolean isMultiple_ = false;
/**
* The size of the list (number of select options)
*/
private int size_ = 1;
/**
* The list of options
*/
private List<SelectItemOption<String>> options_;
/**
* The javascript expression executed when an onChange event fires
*/
private String onchange_;
public UIFormSelectBox() {
}
public UIFormSelectBox(String name, String bindingExpression, List<SelectItemOption<String>> options) {
super(name, bindingExpression, null);
setOptions(options);
}
public boolean isMultiple() {
return isMultiple_;
}
public final UIFormSelectBox setMultiple(boolean bl) {
isMultiple_ = bl;
return this;
}
public final UIFormSelectBox setSize(int i) {
size_ = i;
return this;
}
public UIFormSelectBox setValue(String value) {
value_ = value;
for (SelectItemOption<String> option : options_) {
if (option.getValue().equals(value_))
option.setSelected(true);
else
option.setSelected(false);
}
return this;
}
public String[] getSelectedValues() {
if (isMultiple_) {
List<String> selectedValues = new ArrayList<String>();
for (int i = 0; i < options_.size(); i++) {
SelectItemOption<String> item = options_.get(i);
if (item.isSelected())
selectedValues.add(item.getValue());
}
return selectedValues.toArray(new String[0]);
}
return new String[] { value_ };
}
public UIFormSelectBox setSelectedValues(String[] values) {
for (SelectItemOption<String> option : options_) {
option.setSelected(false);
for (String value : values) {
if (value.equals(option.getValue())) {
option.setSelected(true);
break;
}
}
}
return this;
}
public final List<SelectItemOption<String>> getOptions() {
return options_;
}
public final UIFormSelectBox setOptions(List<SelectItemOption<String>> options) {
options_ = options;
if (options_ == null || options_.size() < 1)
return this;
value_ = options_.get(0).getValue();
return this;
}
@Override
public void reset() {
// TODO Auto-generated method stub - dang.tung
if (options_ == null || options_.size() < 1)
return;
value_ = options_.get(0).getValue();
for (SelectItemOption<String> option : options_) {
option.setSelected(false);
}
options_.get(0).setSelected(true);
}
public void setOnChange(String onchange) {
onchange_ = onchange;
}
@SuppressWarnings("deprecation")
public UIFormSelectBox setDisabled(boolean disabled) {
return (UIFormSelectBox) super.setDisabled(disabled);
}
@SuppressWarnings("unused")
public void decode(Object input, WebuiRequestContext context) {
String[] values = context.getRequestParameterValues(getId());
if (values == null) {
value_ = null;
for (SelectItemOption<String> item : options_) {
item.setSelected(false);
}
return;
}
int i = 0;
value_ = values[0];
for (SelectItemOption<String> item : options_) {
if (i > -1 && item.getValue().equals(values[i])) {
item.setSelected(true);
if (values.length == ++i)
i = -1;
} else
item.setSelected(false);
}
}
// protected String renderOnChangeAction(UIForm uiform) throws Exception {
// StringBuilder builder = new StringBuilder();
// builder.append(" onchange=\"javascript:eXo.webui.UIForm.submitForm('").
// append("").append("','").append(onchange_).append("');\" ");
// return builder.toString();
// }
protected String renderOnChangeEvent(UIForm uiForm) throws Exception {
return uiForm.event(onchange_, (String) getId());
}
public void processRender(WebuiRequestContext context) throws Exception {
ResourceBundle res = context.getApplicationResourceBundle();
UIForm uiForm = getAncestorOfType(UIForm.class);
String formId = null;
if (uiForm.getId().equals("UISearchForm"))
formId = uiForm.<UIComponent> getParent().getId();
else
formId = uiForm.getId();
Writer w = context.getWriter();
w.write("<select class=\"selectbox\" name=\"");
w.write(name);
w.write("\"");
w.write(" id=\"");
w.write(name);
w.write("\"");
if (onchange_ != null) {
w.append(" onchange=\"").append(renderOnChangeEvent(uiForm)).append("\"");
}
if (isMultiple_)
w.write(" multiple=\"true\"");
if (size_ > 1)
w.write(" size=\"" + size_ + "\"");
if (isDisabled())
w.write(" disabled ");
renderHTMLAttributes(w);
w.write(">\n");
for (SelectItemOption<String> item : options_) {
String label = item.getLabel();
try {
label = res.getString(formId + ".label.option." + item.getValue());
} catch (MissingResourceException ex) {
}
String value = item.getValue();
value = HTMLEntityEncoder.getInstance().encodeHTMLAttribute(value);
if (item.isSelected()) {
w.write("<option selected=\"selected\" value=\"");
w.write(value);
w.write("\">");
} else {
w.write("<option value=\"");
w.write(item.getValue());
w.write("\">");
}
w.write(label);
w.write("</option>\n");
}
w.write("</select>\n");
if (this.isMandatory())
w.write(" *");
}
}