/**
* Copyright 2010 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.drools.guvnor.client.modeldriven.ui;
import org.drools.guvnor.client.common.DirtyableComposite;
import org.drools.guvnor.client.common.FormStylePopup;
import org.drools.guvnor.client.messages.Constants;
import org.drools.guvnor.client.rpc.RuleAsset;
import org.drools.ide.common.client.modeldriven.dt.TemplateModel;
import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.HasHorizontalAlignment;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;
import com.gwtext.client.core.EventObject;
import com.gwtext.client.data.ArrayReader;
import com.gwtext.client.data.FieldDef;
import com.gwtext.client.data.GroupingStore;
import com.gwtext.client.data.MemoryProxy;
import com.gwtext.client.data.Record;
import com.gwtext.client.data.RecordDef;
import com.gwtext.client.data.StringFieldDef;
import com.gwtext.client.widgets.Toolbar;
import com.gwtext.client.widgets.ToolbarMenuButton;
import com.gwtext.client.widgets.form.TextField;
import com.gwtext.client.widgets.grid.ColumnConfig;
import com.gwtext.client.widgets.grid.ColumnModel;
import com.gwtext.client.widgets.grid.EditorGridPanel;
import com.gwtext.client.widgets.grid.GridEditor;
import com.gwtext.client.widgets.grid.GridPanel;
import com.gwtext.client.widgets.grid.GridView;
import com.gwtext.client.widgets.grid.event.EditorGridListenerAdapter;
import com.gwtext.client.widgets.grid.event.GridListenerAdapter;
import com.gwtext.client.widgets.menu.BaseItem;
import com.gwtext.client.widgets.menu.Item;
import com.gwtext.client.widgets.menu.Menu;
import com.gwtext.client.widgets.menu.event.BaseItemListenerAdapter;
public class RuleTemplateEditor extends DirtyableComposite implements RuleModelEditor {
private TemplateModel model;
private GroupingStore store = null;
private EditorGridPanel grid = null;
private RuleModeller ruleModeller;
private Constants constants = ((Constants) GWT.create(Constants.class));
public RuleTemplateEditor(RuleAsset asset) {
model = (TemplateModel) asset.content;
final VerticalPanel tPanel = new VerticalPanel();
tPanel.setWidth("100%");
ruleModeller = new RuleModeller(asset, new TemplateModellerWidgetFactory());
tPanel.add(new Button(constants.LoadTemplateData(), new ClickHandler() {
public void onClick(ClickEvent event) {
final FormStylePopup popUp = new FormStylePopup(null, constants.TemplateData(), (int) (Window.getClientWidth() * 0.8), false);
popUp.setHeight((int) (Window.getClientHeight() * 0.8));
popUp.addAttribute("", buildTemplateTable());
Button close = new Button(constants.Close(), new ClickHandler() {
public void onClick(ClickEvent event) {
popUp.hide();
}
});
HorizontalPanel pnlClose = new HorizontalPanel();
pnlClose.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_RIGHT);
pnlClose.add(close);
popUp.addAttribute("", pnlClose);
popUp.show();
}
}));
tPanel.add(ruleModeller);
initWidget(tPanel);
}
private Widget buildTemplateTable() {
String[] vars = model.getInterpolationVariablesList();
if (vars.length == 0) {
return new Label("");
}
FieldDef[] fds = new FieldDef[vars.length];
ColumnConfig[] cols = new ColumnConfig[fds.length];
int idx = 0;
for (String var: vars) {
cols[idx] = new ColumnConfig();
cols[idx].setHeader(var);
cols[idx].setDataIndex(var);
cols[idx].setSortable(false);
cols[idx].setWidth(50);
cols[idx].setResizable(true);
cols[idx].setEditor(new GridEditor(new TextField()));
fds[idx] = new StringFieldDef(var);
idx++;
}
final RecordDef recordDef = new RecordDef(fds);
ArrayReader reader = new ArrayReader(recordDef);
MemoryProxy proxy = new MemoryProxy(model.getTableAsArray());
ColumnModel cm = new ColumnModel(cols);
for (int i = 0; i < cm.getColumnCount(); i++) {
cm.setEditable(i, true);
}
store = new GroupingStore(proxy, reader);
store.load();
grid = new EditorGridPanel(store, cm);
grid.setStripeRows(true);
// GroupingView gv = new GroupingView();
GridView gv = new GridView();
// to stretch it out
gv.setForceFit(true);
// gv.setGroupTextTpl("{text} ({[values.rs.length]} {[values.rs.length > 1 ? \"" // NON-NLS
// + constants.Items() + "\" : \"" + constants.Item() + "\"]})");
grid.setView(gv);
grid.setStore(store);
grid.setAutoWidth(true);
grid.setAutoHeight(true);
Toolbar tb = new Toolbar();
Menu menu = new Menu();
menu.addItem(new Item(constants.AddRow(), new BaseItemListenerAdapter() {
public void onClick(BaseItem item, EventObject e) {
String[] rowData = new String[recordDef.getFields().length];
for (int i = 0; i < rowData.length; i++) {
rowData[i] = "";
}
Record newRecord = recordDef.createRecord(rowData);
store.add(newRecord);
model.addRow(newRecord.getId(), rowData);
}
}));
menu.addItem(new Item(constants.RemoveSelectedRowS(), new BaseItemListenerAdapter() {
public void onClick(BaseItem item, EventObject e) {
removeSelectedRows(grid);
}
}));
grid.addGridListener(new GridListenerAdapter() {
public void onKeyPress(EventObject e) {
int k = e.getKey();
if (k == KeyCodes.KEY_DELETE || k == KeyCodes.KEY_BACKSPACE) {
removeSelectedRows(grid);
}
else if (k == KeyCodes.KEY_ENTER) {
int[] selectedCell = grid.getCellSelectionModel().getSelectedCell();
grid.startEditing(selectedCell[0], selectedCell[1]);
}
}
});
// grid.setSelectionModel(new RowSelectionModel(false));
ToolbarMenuButton tbb = new ToolbarMenuButton(constants.Modify(), menu);
tb.addButton(tbb);
grid.add(tb);
grid.addEditorGridListener(new EditorGridListenerAdapter() {
@Override
public void onAfterEdit(GridPanel grid, Record record, String field, Object newValue, Object oldValue,
int rowIndex, int colIndex) {
model.setValue(field, rowIndex, (String) newValue);
}
});
grid.setWidth((int) (Window.getClientWidth() * 0.75));
return grid;
}
private void removeSelectedRows(EditorGridPanel grid) {
if (com.google.gwt.user.client.Window.confirm(constants.AreYouSureYouWantToDeleteTheSelectedRowS())) {
int row = grid.getCellSelectionModel().getSelectedCell()[0];
Record rec = store.getAt(row);
model.removeRowById(rec.getId());
store.remove(rec);
}
}
@Override
public void resetDirty() {
super.resetDirty();
if (store != null) {
store.commitChanges();
}
}
public RuleModeller getRuleModeller() {
return ruleModeller;
}
}