1 package autotest.tko; 2 3 import autotest.common.Utils; 4 import autotest.common.ui.ExtendedListBox; 5 import autotest.tko.FilterStringViewer.EditListener; 6 7 import com.google.gwt.event.dom.client.ChangeEvent; 8 import com.google.gwt.event.dom.client.ChangeHandler; 9 import com.google.gwt.event.dom.client.ClickEvent; 10 import com.google.gwt.event.dom.client.ClickHandler; 11 import com.google.gwt.user.client.ui.Anchor; 12 import com.google.gwt.user.client.ui.Composite; 13 import com.google.gwt.user.client.ui.FlexTable; 14 import com.google.gwt.user.client.ui.HasHorizontalAlignment; 15 import com.google.gwt.user.client.ui.HorizontalPanel; 16 import com.google.gwt.user.client.ui.Panel; 17 import com.google.gwt.user.client.ui.RadioButton; 18 import com.google.gwt.user.client.ui.TextBox; 19 import com.google.gwt.user.client.ui.VerticalPanel; 20 21 import java.util.ArrayList; 22 import java.util.List; 23 import java.util.Map; 24 25 public class FilterSelector extends Composite { 26 27 public class DatabaseFilter extends Composite implements ChangeHandler { 28 29 private ExtendedListBox dbColumnSelector = new DBColumnSelector(dbView); 30 private TextBox condition = new TextBox(); 31 private FlexTable flexTable = new FlexTable(); 32 private Anchor deleteLink = new Anchor("[X]"); 33 34 private DatabaseFilter() { 35 dbColumnSelector.addChangeHandler(this); 36 condition.addChangeHandler(this); 37 38 deleteLink.addClickHandler(new ClickHandler() { 39 public void onClick(ClickEvent event) { 40 if (enabled) { 41 deleteFilter(DatabaseFilter.this); 42 buildFilterString(); 43 } 44 } 45 }); 46 47 flexTable.setWidget(0, 0, dbColumnSelector); 48 flexTable.setWidget(0, 1, condition); 49 flexTable.setWidget(0, 2, deleteLink); 50 51 initWidget(flexTable); 52 } 53 54 @Override 55 public void onChange(ChangeEvent event) { 56 buildFilterString(); 57 } 58 59 public void setEnabled(boolean enabled) { 60 dbColumnSelector.setEnabled(enabled); 61 condition.setEnabled(enabled); 62 } 63 64 public boolean isEmpty() { 65 return condition.getText().equals(""); 66 } 67 68 public String getFilterString() { 69 return dbColumnSelector.getSelectedValue() + " " + condition.getText(); 70 } 71 } 72 73 private FlexTable table = new FlexTable(); 74 private Panel filtersPanel = new VerticalPanel(); 75 private List<DatabaseFilter> filters = new ArrayList<DatabaseFilter>(); 76 private RadioButton all; 77 private RadioButton any; 78 private Anchor addLink = new Anchor("[Add Filter]"); 79 private FilterStringViewer viewer = new FilterStringViewer(); 80 private boolean enabled = true; 81 private String dbView; 82 private static int filterSelectorId; 83 84 public FilterSelector(String dbView) { 85 this.dbView = dbView; 86 int id = filterSelectorId; 87 filterSelectorId++; 88 89 all = new RadioButton("booleanOp" + id, "all of"); 90 any = new RadioButton("booleanOp" + id, "any of"); 91 92 ClickHandler booleanOpListener = new ClickHandler() { 93 public void onClick(ClickEvent event) { 94 buildFilterString(); 95 } 96 }; 97 all.addClickHandler(booleanOpListener); 98 any.addClickHandler(booleanOpListener); 99 all.setValue(true); 100 101 addLink.addClickHandler(new ClickHandler() { 102 public void onClick(ClickEvent event) { 103 if (enabled) { 104 addFilter(); 105 } 106 } 107 }); 108 109 viewer.addEditListener(new EditListener() { 110 public void onEdit() { 111 setEnabled(false); 112 } 113 114 public void onRevert() { 115 setEnabled(true); 116 buildFilterString(); 117 } 118 }); 119 120 Panel booleanOpPanel = new HorizontalPanel(); 121 booleanOpPanel.add(all); 122 booleanOpPanel.add(any); 123 table.setWidget(0, 0, booleanOpPanel); 124 table.setWidget(1, 0, filtersPanel); 125 table.getFlexCellFormatter().setColSpan(1, 0, 2); 126 table.setWidget(2, 1, addLink); 127 table.getFlexCellFormatter().setHorizontalAlignment( 128 2, 1, HasHorizontalAlignment.ALIGN_RIGHT); 129 table.setWidget(3, 0, viewer); 130 table.getFlexCellFormatter().setColSpan(3, 0, 2); 131 table.setStylePrimaryName("box"); 132 133 addFilter(); 134 135 initWidget(table); 136 } 137 138 public String getFilterString() { 139 return viewer.getText(); 140 } 141 142 public void reset() { 143 filtersPanel.clear(); 144 filters.clear(); 145 addFilter(); 146 } 147 148 protected void addToHistory(Map<String, String> args, String prefix) { 149 // Get all the filters/conditions 150 for (int index = 0; index < filters.size(); index++) { 151 args.put(prefix + "[" + index + "][db]", 152 filters.get(index).dbColumnSelector.getSelectedValue()); 153 args.put(prefix + "[" + index + "][condition]", filters.get(index).condition.getText()); 154 } 155 156 // Get whether the filter should be "all" or "any" 157 args.put(prefix + "_all", Boolean.toString(all.getValue())); 158 159 viewer.addToHistory(args, prefix); 160 } 161 162 protected void handleHistoryArguments(Map<String, String> args, String prefix) { 163 int index = 0; 164 String db, condition; 165 166 // Restore all the filters/conditions 167 while ((db = args.get(prefix + "[" + index + "][db]")) != null) { 168 condition = args.get(prefix + "[" + index + "][condition]"); 169 DatabaseFilter filter; 170 if (index == 0) { 171 filter = filters.get(0); 172 } else { 173 filter = addFilter(); 174 } 175 filter.dbColumnSelector.selectByValue(db); 176 filter.condition.setText(condition); 177 index++; 178 } 179 180 // Restore the "all" or "any" selection 181 boolean allChecked = Boolean.parseBoolean(args.get(prefix + "_all")); 182 if (allChecked) { 183 all.setValue(true); 184 } else { 185 any.setValue(true); 186 } 187 188 buildFilterString(); 189 viewer.handleHistoryArguments(args, prefix); 190 } 191 192 private DatabaseFilter addFilter() { 193 DatabaseFilter nextFilter = new DatabaseFilter(); 194 filters.add(nextFilter); 195 filtersPanel.add(nextFilter); 196 return nextFilter; 197 } 198 199 private void deleteFilter(DatabaseFilter filter) { 200 // If there's only one filter, clear it 201 if (filters.size() == 1) { 202 reset(); 203 return; 204 } 205 206 filters.remove(filter); 207 filtersPanel.remove(filter); 208 } 209 210 private void setEnabled(boolean enabled) { 211 this.enabled = enabled; 212 all.setEnabled(enabled); 213 any.setEnabled(enabled); 214 for (DatabaseFilter filter : filters) { 215 filter.setEnabled(enabled); 216 } 217 } 218 219 private void buildFilterString() { 220 List<String> filterParts = new ArrayList<String>(); 221 for (DatabaseFilter filter : filters) { 222 if (!filter.isEmpty()) { 223 filterParts.add(filter.getFilterString()); 224 } 225 } 226 227 String joiner = all.getValue() ? " AND " : " OR "; 228 String fullFilterString = Utils.joinStrings(joiner, filterParts); 229 viewer.setText(fullFilterString); 230 } 231 } 232
