OptionGroup
Ausgabe von Class Attributen git-svn-id: https://svn.libreccm.org/ccm/trunk@2478 8810af33-2d31-482b-a856-94f89814c4dfmaster
quasi
parent
8a7131a612
commit
a62d12d63a
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@ -39,380 +39,377 @@ import org.apache.log4j.Logger;
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/**
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* A class representing any widget that contains a list options.
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*
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* @author Karl Goldstein
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* @author Uday Mathur
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* @author Rory Solomon
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* @author Michael Pih
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* @version $Id: OptionGroup.java 738 2005-09-01 12:36:52Z sskracic $ */
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* @author Karl Goldstein
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* @author Uday Mathur
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* @author Rory Solomon
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* @author Michael Pih
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* @version $Id: OptionGroup.java 738 2005-09-01 12:36:52Z sskracic $
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*/
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public abstract class OptionGroup extends Widget
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implements BebopConstants {
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implements BebopConstants {
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private static final Logger s_log = Logger.getLogger( OptionGroup.class );
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private static final Logger s_log = Logger.getLogger(OptionGroup.class);
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/**
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* The XML element to be used by individual options belonging to this group.
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* This variable has to be initialized by every subclass of OptionGroup.
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* LEGACY: An abstract method would be the better design, but changing it
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* would break the API.
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*/
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protected String m_xmlElement;
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// this only needs to be an ArrayList for multiple selection option groups
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private ArrayList m_selected;
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private ArrayList m_options;
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private Widget m_otherOption = null;
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private Form m_form = null;
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private boolean m_isDisabled = false;
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private boolean m_isReadOnly = false;
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public static final String OTHER_OPTION = "__other__";
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// request-local copy of selected elements, options
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private RequestLocal m_requestOptions = new RequestLocal() {
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@Override
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public Object initialValue(PageState ps) {
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return new ArrayList();
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}
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};
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/**
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* The XML element to be used by individual options belonging to this
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* group. This variable has to be initialized by every subclass of
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* OptionGroup.
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* LEGACY: An abstract method would be the better design, but changing it
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* would break the API. */
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protected String m_xmlElement;
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public final boolean isCompound() {
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return true;
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}
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// this is only used for single selection option groups
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private final static String TOO_MANY_OPTIONS_SELECTED =
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"Only one option may be selected by default on this option group.";
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// this only needs to be an ArrayList for multiple selection option groups
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private ArrayList m_selected;
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/**
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* The ParameterModel for mutliple OptionGroups is always an array parameter
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*/
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protected OptionGroup(ParameterModel model) {
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super(model);
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m_options = new ArrayList();
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m_selected = new ArrayList();
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}
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private ArrayList m_options;
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/**
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* Returns an Iterator of all the default Options in this group.
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*/
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public Iterator getOptions() {
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return m_options.iterator();
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}
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private Widget m_otherOption = null;
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/**
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* Returns an Iterator of all the default Options in this group, plus any
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* request-specific options.
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*/
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public Iterator getOptions(PageState ps) {
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ArrayList allOptions = new ArrayList();
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allOptions.addAll(m_options);
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ArrayList requestOptions = (ArrayList) m_requestOptions.get(ps);
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for (Iterator i = requestOptions.iterator(); i.hasNext();) {
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Object obj = i.next();
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if (!allOptions.contains(obj)) {
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allOptions.add(obj);
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}
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}
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return allOptions.iterator();
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}
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private Form m_form = null;
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private boolean m_isDisabled = false;
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private boolean m_isReadOnly = false;
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public void clearOptions() {
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Assert.isUnlocked(this);
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m_options = new ArrayList();
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}
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public static final String OTHER_OPTION = "__other__";
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/**
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* Adds a new option.
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*
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* @param opt The {@link Option} to be added. Note: the argument is modified
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* and associated with this OptionGroup, regardless of what its group was.
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*/
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public void addOption(Option opt) {
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addOption(opt, null, false);
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}
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// request-local copy of selected elements, options
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private RequestLocal m_requestOptions = new RequestLocal() {
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@Override
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public Object initialValue(PageState ps) {
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return new ArrayList();
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}
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};
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public void addOption(Option opt, PageState ps) {
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addOption(opt, ps, false);
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}
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public final boolean isCompound() {
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return true;
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}
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/**
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* Adds a new option.at the beginning of the list
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*
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* @param opt The {@link Option} to be added. Note: the argument is modified
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* and associated with this OptionGroup, regardless of what its group was.
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*/
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public void prependOption(Option opt) {
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addOption(opt, null, true);
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}
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// this is only used for single selection option groups
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private final static String TOO_MANY_OPTIONS_SELECTED =
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"Only one option may be selected by default on this option group.";
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public void prependOption(Option opt, PageState ps) {
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addOption(opt, ps, true);
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}
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/** The ParameterModel for mutliple OptionGroups is always an array
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* parameter */
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protected OptionGroup(ParameterModel model) {
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super(model);
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m_options = new ArrayList();
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m_selected = new ArrayList();
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}
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public void removeOption(Option opt) {
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removeOption(opt, null);
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}
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/**
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* Returns an Iterator of all the default Options in this group.
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*/
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public Iterator getOptions() {
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return m_options.iterator();
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}
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/**
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* Adds a new option for the scope of the current request, or to the page as
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* a whole if there is no current request.
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*
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* @param opt The {@link Option} to be added. Note: the argument is modified
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* and associated with this OptionGroup, regardless of what its group was.
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* @param ps the current page state. if ps is null, adds option to the
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* default option list.
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* @param prepend If true, prepend option to the list instead of appending
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* it
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*/
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public void addOption(Option opt, PageState ps, boolean prepend) {
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ArrayList list = m_options;
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if (ps == null) {
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Assert.isUnlocked(this);
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} else {
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list = (ArrayList) m_requestOptions.get(ps);
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}
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opt.setGroup(this);
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/**
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* Returns an Iterator of all the default Options in this group,
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* plus any request-specific options.
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*/
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public Iterator getOptions(PageState ps) {
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ArrayList allOptions = new ArrayList();
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allOptions.addAll(m_options);
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ArrayList requestOptions = (ArrayList)m_requestOptions.get(ps);
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for (Iterator i = requestOptions.iterator(); i.hasNext(); ) {
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Object obj = i.next();
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if (!allOptions.contains(obj)) {
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allOptions.add(obj);
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}
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}
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return allOptions.iterator();
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}
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if (prepend == true) {
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list.add(0, opt);
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} else {
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list.add(opt);
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}
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}
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public void clearOptions() {
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Assert.isUnlocked(this);
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m_options = new ArrayList();
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}
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public void removeOption(Option opt, PageState ps) {
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ArrayList list = m_options;
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if (ps == null) {
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Assert.isUnlocked(this);
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} else {
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list = (ArrayList) m_requestOptions.get(ps);
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}
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list.remove(opt);
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}
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/**
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* Adds a new option.
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* @param opt The {@link Option} to be added. Note: the argument
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* is modified and associated with this OptionGroup, regardless of
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* what its group was.
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*/
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public void addOption(Option opt) {
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addOption(opt, null, false);
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}
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public void removeOption(String key) {
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removeOption(key, null);
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}
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public void addOption(Option opt, PageState ps) {
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addOption(opt, ps, false);
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}
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/**
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* Removes the first option whose key is isEqual to the key that is passed
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* in.
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*/
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public void removeOption(String key, PageState ps) {
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// This is not an entirely efficient technique. A more
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// efficient solution is to switch to using a HashMap.
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ArrayList list = m_options;
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if (ps == null) {
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Assert.isUnlocked(this);
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} else {
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list = (ArrayList) m_requestOptions.get(ps);
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}
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/**
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* Adds a new option.at the beginning of the list
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* @param opt The {@link Option} to be added. Note: the argument
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* is modified and associated with this OptionGroup, regardless of
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* what its group was.
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*/
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public void prependOption(Option opt) {
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addOption(opt, null, true);
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}
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Iterator i = list.iterator();
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Option o = null;
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while (i.hasNext()) {
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o = (Option) i.next();
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if (o.getValue().equals(key)) {
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list.remove(o);
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break;
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}
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}
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public void prependOption(Option opt, PageState ps) {
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addOption(opt, ps, true);
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}
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}
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public void removeOption(Option opt) {
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removeOption(opt, null);
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}
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/**
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* Add an "Other (please specify)" type option to the widget
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*
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* @param hasOtherOption true is the widget has an "Other" option
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* @param width The width, in characters, of the "Other" entry area
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* @param height The height, in characters, of the "Other" entry area. If
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* this is 1 then a TextField is used. Otherwise a TextArea is used.
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*/
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public void addOtherOption(String label, int width, int height) {
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Assert.isUnlocked(this);
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/**
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* Adds a new option for the scope of the current request, or
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* to the page as a whole if there is no current request.
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*
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* @param opt The {@link Option} to be added. Note: the argument
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* is modified and associated with this OptionGroup, regardless of
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* what its group was.
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* @param ps the current page state. if ps is null, adds option to the
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* default option list.
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* @param prepend If true, prepend option to the list instead of appending it
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*/
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public void addOption(Option opt, PageState ps, boolean prepend) {
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ArrayList list = m_options;
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if (ps == null) {
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Assert.isUnlocked(this);
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} else {
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list = (ArrayList)m_requestOptions.get(ps);
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}
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opt.setGroup( this );
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Option otherOption = new Option(OTHER_OPTION, label);
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addOption(otherOption);
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if(prepend == true) {
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list.add(0, opt);
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} else {
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list.add(opt);
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}
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}
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final ParameterModel model = getParameterModel();
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if (1 == height) {
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TextField field =
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new TextField(model.getName() + ".other");
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field.setSize(width);
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public void removeOption(Option opt, PageState ps) {
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ArrayList list = m_options;
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if (ps == null) {
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Assert.isUnlocked(this);
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} else {
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list = (ArrayList)m_requestOptions.get(ps);
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}
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list.remove(opt);
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}
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m_otherOption = field;
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} else {
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TextArea area =
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new TextArea(model.getName() + ".other");
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area.setCols(width);
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area.setRows(height);
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public void removeOption(String key) {
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removeOption(key, null);
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}
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m_otherOption = area;
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}
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/**
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* Removes the first option whose key is isEqual
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* to the key that is passed in.
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*/
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public void removeOption(String key, PageState ps) {
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// This is not an entirely efficient technique. A more
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// efficient solution is to switch to using a HashMap.
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ArrayList list = m_options;
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if (ps == null) {
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Assert.isUnlocked(this);
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} else {
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list = (ArrayList)m_requestOptions.get(ps);
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}
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if (null != m_form) {
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m_otherOption.setForm(m_form);
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Iterator i = list.iterator();
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Option o = null;
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while ( i.hasNext() ) {
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o = (Option) i.next();
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if ( o.getValue().equals(key) ) {
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list.remove(o);
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break;
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}
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}
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if (m_isDisabled) {
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m_otherOption.setDisabled();
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}
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if (m_isReadOnly) {
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m_otherOption.setReadOnly();
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}
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}
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}
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setParameterModel(new ParameterModelWrapper(model) {
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@Override
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public ParameterData createParameterData(final HttpServletRequest request,
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Object defaultValue,
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boolean isSubmission) {
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/**
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* Add an "Other (please specify)" type option to the widget
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*
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* @param hasOtherOption true is the widget has an "Other" option
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* @param width The width, in characters, of the "Other" entry area
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* @param height The height, in characters, of the "Other" entry area. If
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* this is 1 then a TextField is used. Otherwise a TextArea is used.
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*/
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public void addOtherOption( String label, int width, int height ) {
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Assert.isUnlocked(this);
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final String[] values =
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request.getParameterValues(getName());
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String[] otherValues =
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request.getParameterValues(getName() + ".other");
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Option otherOption = new Option( OTHER_OPTION, label );
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addOption( otherOption );
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String other = (null == otherValues) ? null : otherValues[0];
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final ParameterModel model = getParameterModel();
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if (null != values) {
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for (int i = 0; i < values.length; i++) {
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if (OTHER_OPTION.equals(values[i])) {
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values[i] = other;
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}
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}
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}
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if( 1 == height ) {
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TextField field =
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new TextField( model.getName() + ".other" );
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field.setSize( width );
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s_log.debug("createParameterData in OptionGroup");
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m_otherOption = field;
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} else {
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TextArea area =
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new TextArea( model.getName() + ".other" );
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area.setCols( width );
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area.setRows( height );
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return super.createParameterData(new HttpServletRequestWrapper(request) {
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@Override
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public String[] getParameterValues(String key) {
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if (s_log.isDebugEnabled()) {
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s_log.debug("Getting values for " + key);
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}
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m_otherOption = area;
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}
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if (model.getName().equals(key)) {
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return values;
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}
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return super.getParameterValues(key);
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}
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}, defaultValue, isSubmission);
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}
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if( null != m_form ) {
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m_otherOption.setForm( m_form );
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private void replaceOther(String[] values, String other) {
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}
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});
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}
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if( m_isDisabled ) {
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m_otherOption.setDisabled();
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}
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if( m_isReadOnly ) {
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m_otherOption.setReadOnly();
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}
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}
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/**
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* Make an option selected by default. Updates the parameter model for the
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* option group accordingly.
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*
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* @param value the value of the option to be added to the
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* by-default-selected set.
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*/
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public void setOptionSelected(String value) {
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Assert.isUnlocked(this);
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if (!isMultiple()) {
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// only one option may be selected
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// to this selected list better be empty
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Assert.isTrue(m_selected.size() == 0, TOO_MANY_OPTIONS_SELECTED);
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m_selected.add(value);
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getParameterModel().setDefaultValue(value);
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} else {
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m_selected.add(value);
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getParameterModel().setDefaultValue(m_selected.toArray());
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}
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}
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setParameterModel( new ParameterModelWrapper( model ) {
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@Override
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public ParameterData createParameterData( final HttpServletRequest request,
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Object defaultValue,
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boolean isSubmission ) {
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/**
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* make an option selected by default
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*
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* @param option the option to be added to the by-default-selected set.
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*/
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public void setOptionSelected(Option option) {
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setOptionSelected(option.getValue());
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}
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final String[] values =
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request.getParameterValues( getName() );
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String[] otherValues =
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request.getParameterValues( getName() + ".other" );
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@Override
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public Object clone() throws CloneNotSupportedException {
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OptionGroup cloned = (OptionGroup) super.clone();
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cloned.m_options = (ArrayList) m_options.clone();
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cloned.m_selected =
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(ArrayList) m_selected.clone();
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return cloned;
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}
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String other = ( null == otherValues ) ? null : otherValues[0];
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/**
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* Is this a multiple (and not single) selection option group? Note that
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* this should really be declared abstract, but we can't because it used to
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* be in the direct subclass Select and making it abstract could break other
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* subclasses that don't declare isMultiple. So we have a trivial
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* implementation instead.
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*
|
||||
* @return true if this OptionGroup can have more than one selected option;
|
||||
* false otherwise.
|
||||
*/
|
||||
public boolean isMultiple() {
|
||||
return true;
|
||||
}
|
||||
|
||||
if( null != values ) {
|
||||
for( int i = 0; i < values.length; i++ ) {
|
||||
if( OTHER_OPTION.equals( values[i] ) ) {
|
||||
values[i] = other;
|
||||
}
|
||||
}
|
||||
}
|
||||
@Override
|
||||
public void setDisabled() {
|
||||
m_isDisabled = true;
|
||||
|
||||
s_log.debug( "createParameterData in OptionGroup" );
|
||||
if (null != m_otherOption) {
|
||||
m_otherOption.setDisabled();
|
||||
}
|
||||
|
||||
return super.createParameterData( new HttpServletRequestWrapper( request ) {
|
||||
@Override
|
||||
public String[] getParameterValues( String key ) {
|
||||
if( s_log.isDebugEnabled() ) {
|
||||
s_log.debug( "Getting values for " + key );
|
||||
}
|
||||
super.setDisabled();
|
||||
}
|
||||
|
||||
if( model.getName().equals( key ) ) {
|
||||
return values;
|
||||
}
|
||||
return super.getParameterValues( key );
|
||||
}
|
||||
}, defaultValue, isSubmission );
|
||||
}
|
||||
@Override
|
||||
public void setReadOnly() {
|
||||
m_isReadOnly = true;
|
||||
|
||||
private void replaceOther( String[] values, String other ) {
|
||||
}
|
||||
} );
|
||||
}
|
||||
if (null != m_otherOption) {
|
||||
m_otherOption.setReadOnly();
|
||||
}
|
||||
|
||||
/** Make an option selected by default. Updates the parameter
|
||||
* model for the option group accordingly.
|
||||
* @param value the value of the option to be added to the
|
||||
* by-default-selected set. */
|
||||
public void setOptionSelected(String value) {
|
||||
Assert.isUnlocked(this);
|
||||
if (!isMultiple()) {
|
||||
// only one option may be selected
|
||||
// to this selected list better be empty
|
||||
Assert.isTrue(m_selected.size() == 0, TOO_MANY_OPTIONS_SELECTED);
|
||||
m_selected.add(value);
|
||||
getParameterModel().setDefaultValue( value );
|
||||
} else {
|
||||
m_selected.add(value);
|
||||
getParameterModel().setDefaultValue( m_selected.toArray() );
|
||||
}
|
||||
}
|
||||
super.setReadOnly();
|
||||
}
|
||||
|
||||
/** make an option selected by default
|
||||
* @param option the option to be added to the by-default-selected set.
|
||||
*/
|
||||
public void setOptionSelected(Option option) {
|
||||
setOptionSelected(option.getValue());
|
||||
}
|
||||
@Override
|
||||
public void setForm(Form form) {
|
||||
m_form = form;
|
||||
if (null != m_otherOption) {
|
||||
m_otherOption.setForm(form);
|
||||
}
|
||||
|
||||
@Override
|
||||
public Object clone() throws CloneNotSupportedException {
|
||||
OptionGroup cloned = (OptionGroup)super.clone();
|
||||
cloned.m_options = (ArrayList) m_options.clone();
|
||||
cloned.m_selected =
|
||||
(ArrayList) m_selected.clone();
|
||||
return cloned;
|
||||
}
|
||||
super.setForm(form);
|
||||
}
|
||||
|
||||
/**
|
||||
* Is this a multiple (and not single) selection option group?
|
||||
* Note that this should really be declared abstract, but we can't
|
||||
* because it used to be in the direct subclass Select and making
|
||||
* it abstract could break other subclasses that don't declare
|
||||
* isMultiple. So we have a trivial implementation instead.
|
||||
*
|
||||
* @return true if this OptionGroup can have more than one
|
||||
* selected option; false otherwise.
|
||||
*/
|
||||
public boolean isMultiple() {
|
||||
return true;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void setDisabled() {
|
||||
m_isDisabled = true;
|
||||
|
||||
if( null != m_otherOption ) {
|
||||
m_otherOption.setDisabled();
|
||||
}
|
||||
|
||||
super.setDisabled();
|
||||
}
|
||||
|
||||
@Override
|
||||
public void setReadOnly() {
|
||||
m_isReadOnly = true;
|
||||
|
||||
if( null != m_otherOption ) {
|
||||
m_otherOption.setReadOnly();
|
||||
}
|
||||
|
||||
super.setReadOnly();
|
||||
}
|
||||
|
||||
@Override
|
||||
public void setForm( Form form ) {
|
||||
m_form = form;
|
||||
if( null != m_otherOption ) {
|
||||
m_otherOption.setForm(form);
|
||||
}
|
||||
|
||||
super.setForm( form );
|
||||
}
|
||||
|
||||
/**
|
||||
* Generates the DOM for the select widget
|
||||
* <p>Generates DOM fragment:
|
||||
* <p><pre><code><bebop:* name=... [onXXX=...]>
|
||||
/**
|
||||
* Generates the DOM for the select widget <p>Generates DOM fragment: <p><pre><code><bebop:* name=... [onXXX=...]>
|
||||
* <bebop:option name=... [selected]> option value </bebop:option%gt;
|
||||
* ...
|
||||
* </bebop:*select></code></pre>
|
||||
*/
|
||||
@Override
|
||||
public void generateWidget( PageState state, Element parent ) {
|
||||
Element optionGroup =
|
||||
parent.newChildElement( getElementTag(), BEBOP_XML_NS );
|
||||
optionGroup.addAttribute( "name", getName() );
|
||||
if ( isMultiple() ) {
|
||||
optionGroup.addAttribute( "multiple", "multiple" );
|
||||
}
|
||||
exportAttributes( optionGroup );
|
||||
* ...
|
||||
* </bebop:*select></code></pre>
|
||||
*/
|
||||
@Override
|
||||
public void generateWidget(PageState state, Element parent) {
|
||||
Element optionGroup =
|
||||
parent.newChildElement(getElementTag(), BEBOP_XML_NS);
|
||||
optionGroup.addAttribute("name", getName());
|
||||
optionGroup.addAttribute("class", getName().replace(".", " "));
|
||||
if (isMultiple()) {
|
||||
optionGroup.addAttribute("multiple", "multiple");
|
||||
}
|
||||
exportAttributes(optionGroup);
|
||||
|
||||
for ( Iterator i = getOptions(state); i.hasNext(); ) {
|
||||
Option o = (Option) i.next();
|
||||
o.generateXML( state, optionGroup );
|
||||
}
|
||||
for (Iterator i = getOptions(state); i.hasNext();) {
|
||||
Option o = (Option) i.next();
|
||||
o.generateXML(state, optionGroup);
|
||||
}
|
||||
|
||||
if( null != m_otherOption ) {
|
||||
m_otherOption.generateXML(state, optionGroup);
|
||||
}
|
||||
}
|
||||
if (null != m_otherOption) {
|
||||
m_otherOption.generateXML(state, optionGroup);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue