package org.activityinfo.ui.client.component.filter;
/*
* #%L
* ActivityInfo Server
* %%
* Copyright (C) 2009 - 2013 UNICEF
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/gpl-3.0.html>.
* #L%
*/
import com.extjs.gxt.ui.client.Style;
import com.extjs.gxt.ui.client.event.Events;
import com.extjs.gxt.ui.client.event.ListViewEvent;
import com.extjs.gxt.ui.client.event.Listener;
import com.extjs.gxt.ui.client.store.ListStore;
import com.extjs.gxt.ui.client.widget.CheckBoxListView;
import com.extjs.gxt.ui.client.widget.ContentPanel;
import com.extjs.gxt.ui.client.widget.layout.FitLayout;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.inject.Inject;
import org.activityinfo.i18n.shared.I18N;
import org.activityinfo.legacy.client.Dispatcher;
import org.activityinfo.legacy.shared.command.DimensionType;
import org.activityinfo.legacy.shared.command.Filter;
import org.activityinfo.legacy.shared.command.GetPartnersDimension;
import org.activityinfo.legacy.shared.command.result.PartnerResult;
import org.activityinfo.legacy.shared.model.PartnerDTO;
import org.activityinfo.ui.client.component.filter.FilterToolBar.ApplyFilterEvent;
import org.activityinfo.ui.client.component.filter.FilterToolBar.ApplyFilterHandler;
import org.activityinfo.ui.client.component.filter.FilterToolBar.RemoveFilterEvent;
import org.activityinfo.ui.client.component.filter.FilterToolBar.RemoveFilterHandler;
import org.activityinfo.ui.client.style.legacy.icon.IconImageBundle;
import java.util.ArrayList;
import java.util.List;
/**
* UI Component that allows the user to choose a list of partners on which to
* restrict the query.
*/
public class PartnerFilterPanel extends ContentPanel implements FilterPanel {
private final Dispatcher service;
private FilterToolBar filterToolBar;
private Filter baseFilter = new Filter();
;
private Filter value = new Filter();
private ListStore<PartnerDTO> store;
private CheckBoxListView<PartnerDTO> listView;
@Inject
public PartnerFilterPanel(Dispatcher service) {
this.service = service;
initializeComponent();
createFilterToolBar();
createList();
}
private void initializeComponent() {
setHeadingText(I18N.CONSTANTS.filterByPartner());
setIcon(IconImageBundle.ICONS.filter());
setLayout(new FitLayout());
setScrollMode(Style.Scroll.NONE);
setHeadingText(I18N.CONSTANTS.filterByPartner());
setIcon(IconImageBundle.ICONS.filter());
}
private void createFilterToolBar() {
filterToolBar = new FilterToolBar();
filterToolBar.addApplyFilterHandler(new ApplyFilterHandler() {
@Override
public void onApplyFilter(ApplyFilterEvent deleteEvent) {
applyFilter();
}
});
filterToolBar.addRemoveFilterHandler(new RemoveFilterHandler() {
@Override
public void onRemoveFilter(RemoveFilterEvent deleteEvent) {
clearFilter();
ValueChangeEvent.fire(PartnerFilterPanel.this, value);
}
});
setTopComponent(filterToolBar);
}
private void createList() {
store = new ListStore<PartnerDTO>();
listView = new CheckBoxListView<PartnerDTO>();
listView.setStore(store);
listView.setDisplayProperty("name");
listView.addListener(Events.Select, new Listener<ListViewEvent<PartnerDTO>>() {
@Override
public void handleEvent(ListViewEvent<PartnerDTO> be) {
filterToolBar.setApplyFilterEnabled(true);
}
});
add(listView);
}
@Override
public void applyBaseFilter(Filter rawFilter) {
// we need to remove any partner filter from this base filter
// so the user has the full selection
final Filter filter = new Filter(rawFilter);
filter.clearRestrictions(DimensionType.Partner);
if (baseFilter == null || !baseFilter.equals(filter)) {
service.execute(new GetPartnersDimension(filter), new AsyncCallback<PartnerResult>() {
@Override
public void onFailure(Throwable caught) {
}
@Override
public void onSuccess(PartnerResult result) {
List<Integer> ids = getSelectedIds();
store.removeAll();
store.add(result.getData());
applyInternalValue();
for (PartnerDTO partner : store.getModels()) {
if (ids.contains(partner.getId())) {
listView.setChecked(partner, true);
}
}
baseFilter = filter;
}
});
}
}
protected void clearFilter() {
for (PartnerDTO partner : listView.getStore().getModels()) {
listView.setChecked(partner, false);
}
value = new Filter();
filterToolBar.setApplyFilterEnabled(false);
filterToolBar.setRemoveFilterEnabled(false);
}
protected void applyFilter() {
value = new Filter();
if (isRendered()) {
List<Integer> selectedIds = getSelectedIds();
if (selectedIds.size() > 0) {
value.addRestriction(DimensionType.Partner, getSelectedIds());
}
}
ValueChangeEvent.fire(this, value);
filterToolBar.setApplyFilterEnabled(false);
filterToolBar.setRemoveFilterEnabled(true);
}
private List<Integer> getSelectedIds() {
List<Integer> list = new ArrayList<Integer>();
for (PartnerDTO model : listView.getChecked()) {
list.add(model.getId());
}
return list;
}
@Override
public Filter getValue() {
return value;
}
@Override
public void setValue(Filter value) {
setValue(value, false);
}
@Override
public void setValue(Filter value, boolean fireEvents) {
this.value = new Filter();
this.value.addRestriction(DimensionType.Partner, value.getRestrictions(DimensionType.Partner));
applyInternalValue();
if (fireEvents) {
ValueChangeEvent.fire(this, value);
}
}
private void applyInternalValue() {
for (PartnerDTO model : listView.getStore().getModels()) {
listView.setChecked(model, value.getRestrictions(DimensionType.Partner).contains(model.getId()));
}
filterToolBar.setApplyFilterEnabled(false);
filterToolBar.setRemoveFilterEnabled(value.isRestricted(DimensionType.Partner));
}
@Override
public HandlerRegistration addValueChangeHandler(ValueChangeHandler<Filter> handler) {
return addHandler(handler, ValueChangeEvent.getType());
}
}