Hi, Not certain about 1.4.x but in 6.x if a parent component is disabled then all its children are disabled as well. For AbstractLink there is a special #isLinkEnabled() method which combined with Component#canCallListenerInterface(Method) can make the link enabled even if any of its parents is disabled.
Good luck! Martin Grigorov Wicket Training and Consulting https://twitter.com/mtgrigorov On Mon, Dec 8, 2014 at 10:16 PM, Richard W. Adams <rwada...@up.com> wrote: > We have a use case which requires an enabled link inside a disabled form. > The form being disabled is based on user's security role, but the link > being enabled depends on the results returned from a separate database > query. Thus, we might have a disabled form, but an enabled link, or vice > versa. Our link class (below) implements IAuthorizationStrategy, but for > some reason, when the parent form is disabled, and the link is enabled, > the onClick() method is not called. > > Can anyone see what we're doing wrong? > > We use Wicket 1.4.17 (no option to upgrade due to corporate framework > constraints). > ______________________________________________________ > > package com.uprr.enm.web.track.detail; > > import org.apache.wicket.Component; > import org.apache.wicket.ajax.AjaxRequestTarget; > import org.apache.wicket.ajax.markup.html.AjaxLink; > import org.apache.wicket.authorization.Action; > import org.apache.wicket.authorization.IAuthorizationStrategy; > > import com.uprr.eni.commons.util.ApiLog; > import com.uprr.eni.valid.tracks.TrackAttribute; > import com.uprr.enm.dao.jdbc.track.history.TrackHistoryReadDAO; > import com.uprr.enm.web.track.history.HistoryModal; > import > com.uprr.ui.wicket.components.ajax.listener.RemovePleaseWaitAjaxListener; > import com.uprr.ui.wicket.components.behavior.PleaseWaitBehavior; > > > //----------------------------------------------------------------------------------------------- > /** > * A link to open a track history modal. This class lets us have a working > history link even if > * the parent form is disabled. > */ > class TrackHistoryLink extends AjaxLink<Object> implements > IAuthorizationStrategy { > > private static final long serialVersionUID = 4693199534296169911L; > > private TrackAttribute attribute ; > private HistoryModal modal ; > private Integer track ; > > > //----------------------------------------------------------------------------------------------- > /** > * Constructor. > * @param id Markup ID. > * @param track Track system number. > * @param attribute The track attribute for which history is desired. > * @param dao Data access object to provide track history. > * @param modal Dialog to display the history data. > */ > public TrackHistoryLink(final String id, final Integer track, final > TrackAttribute attribute, > final TrackHistoryReadDAO dao, final HistoryModal modal) { > > super(id); > if (dao.historyExists(track, attribute)) { // If track has > history records > setEnabled(true); > add(new PleaseWaitBehavior()); > this.track = track; > this.modal = modal; > this.attribute = attribute; > } else { > setEnabled(false); > } > ApiLog.debug("%s history link is %s%n", attribute, isEnabled() ? > "enabled" : "disabled"); > } > > //----------------------------------------------------------------------------------------------- > @Override public boolean isActionAuthorized(final Component component, > final Action action) { > return true; > } > > //----------------------------------------------------------------------------------------------- > @Override public <T extends Component> boolean isInstantiationAuthorized > (final Class<T> componentClass) { > return true; > } > > //----------------------------------------------------------------------------------------------- > @Override public void onClick(final AjaxRequestTarget ajax) { > ajax.addListener(RemovePleaseWaitAjaxListener.getInstance()); > modal.show(track, attribute, ajax); > } > > //----------------------------------------------------------------------------------------------- > } > > > ** > > This email and any attachments may contain information that is > confidential and/or privileged for the sole use of the intended recipient. > Any use, review, disclosure, copying, distribution or reliance by others, > and any forwarding of this email or its contents, without the express > permission of the sender is strictly prohibited by law. If you are not the > intended recipient, please contact the sender immediately, delete the > e-mail and destroy all copies. > ** >
