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Added support for annotating List<String> fields with @ListedByEnum,
e.g. @ListedByEnum(type = MyEnum.class) List<String> strings; The CRUD admin will render a listbox with multiselect for this field configuration. Change-Id: I405c4d2a88c1f4e0676c2b693314fecaa50a72ed
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henper
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Aug 16, 2012
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53 changes: 53 additions & 0 deletions
53
src/main/java/burrito/client/crud/generic/fields/EnumListField.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| /** | ||
| * Copyright 2011 Henric Persson (henric.persson@gmail.com) | ||
| * | ||
| * 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. | ||
| * | ||
| */ | ||
|
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| package burrito.client.crud.generic.fields; | ||
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| import java.util.List; | ||
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| import burrito.client.crud.generic.CrudField; | ||
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| /** | ||
| * A {@link CrudField} representating a selection of enums | ||
| * | ||
| * @author henper | ||
| * | ||
| */ | ||
| @SuppressWarnings("serial") | ||
| public class EnumListField extends StringListField { | ||
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| private String enumClassName; | ||
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| public EnumListField() { | ||
| super(); | ||
| // default constructor | ||
| } | ||
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| public EnumListField(List<String> strings, String enumClassName) { | ||
| super(strings); | ||
| this.setEnumClassName(enumClassName); | ||
| } | ||
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| public void setEnumClassName(String enumClassName) { | ||
| this.enumClassName = enumClassName; | ||
| } | ||
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| public String getEnumClassName() { | ||
| return enumClassName; | ||
| } | ||
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| } |
58 changes: 58 additions & 0 deletions
58
src/main/java/burrito/client/crud/input/EnumListInputField.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| /** | ||
| * Copyright 2011 Henric Persson (henric.persson@gmail.com) | ||
| * | ||
| * 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. | ||
| * | ||
| */ | ||
|
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| package burrito.client.crud.input; | ||
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| import java.util.List; | ||
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| import burrito.client.crud.generic.CrudField; | ||
| import burrito.client.crud.generic.fields.EnumListField; | ||
| import burrito.client.crud.widgets.EnumListWidget; | ||
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| import com.google.gwt.user.client.ui.Widget; | ||
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| public class EnumListInputField implements CrudInputField<List<String>> { | ||
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| private EnumListField field; | ||
| private EnumListWidget widget; | ||
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| @SuppressWarnings("unchecked") | ||
| public EnumListInputField(EnumListField field) { | ||
| this.field = field; | ||
| widget = new EnumListWidget(field.isRequired(), field.getEnumClassName()); | ||
| load((List<String>) field.getValue()); | ||
| } | ||
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| public CrudField getCrudField() { | ||
| field.setValue(getValue()); | ||
| return field; | ||
| } | ||
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| public Widget getDisplayWidget() { | ||
| return widget; | ||
| } | ||
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| public List<String> getValue() { | ||
| return widget.getValue(); | ||
| } | ||
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| public void load(List<String> values) { | ||
| widget.setValue(values); | ||
| } | ||
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| } |
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162 changes: 162 additions & 0 deletions
162
src/main/java/burrito/client/crud/widgets/EnumListWidget.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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| /** | ||
| * Copyright 2011 Henric Persson (henric.persson@gmail.com) | ||
| * | ||
| * 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. | ||
| * | ||
| */ | ||
|
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| package burrito.client.crud.widgets; | ||
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
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| import burrito.client.crud.CrudService; | ||
| import burrito.client.crud.CrudServiceAsync; | ||
| import burrito.client.crud.labels.CrudLabelHelper; | ||
| import burrito.client.crud.labels.CrudMessages; | ||
| import burrito.client.widgets.validation.HasValidators; | ||
| import burrito.client.widgets.validation.InputFieldValidator; | ||
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| import com.google.gwt.core.client.GWT; | ||
| import com.google.gwt.user.client.rpc.AsyncCallback; | ||
| import com.google.gwt.user.client.ui.Composite; | ||
| import com.google.gwt.user.client.ui.Label; | ||
| import com.google.gwt.user.client.ui.ListBox; | ||
| import com.google.gwt.user.client.ui.VerticalPanel; | ||
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| public class EnumListWidget extends Composite implements HasValidators { | ||
| private VerticalPanel wrapper = new VerticalPanel(); | ||
| private CrudMessages labels = GWT.create(CrudMessages.class); | ||
| private boolean required; | ||
| private Label validationError = new Label(labels.atLeastOne()); | ||
| private ListBox lb = new ListBox(true); | ||
| private List<String> pendingValue; | ||
| private CrudServiceAsync service = GWT.create(CrudService.class); | ||
| private boolean enumsLoaded = false; | ||
| private final String enumClassName; | ||
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| /** | ||
| * Create a new linked entity widget. | ||
| * | ||
| * @param required | ||
| * true if at least one link must be specified | ||
| * @param allowMultiple | ||
| * true if multiple links can be entered. In this case, use | ||
| * getValues() to fetch a list of links. IF false, use getValue() | ||
| * to get the only link. | ||
| */ | ||
| public EnumListWidget(boolean required, String enumClassName) { | ||
| this.required = required; | ||
| this.enumClassName = enumClassName; | ||
| validationError.addStyleName("validationError"); | ||
| validationError.setVisible(false); | ||
| wrapper.add(lb); | ||
| wrapper.add(validationError); | ||
| initWidget(wrapper); | ||
| addStyleName("k5-EnumListWidget"); | ||
| loadEnumValues(); | ||
| } | ||
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| private void loadEnumValues() { | ||
| service.getEnumListValues(enumClassName, new AsyncCallback<List<String>>() { | ||
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| @Override | ||
| public void onSuccess(List<String> enumValues) { | ||
| renderListBox(enumValues); | ||
| } | ||
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| @Override | ||
| public void onFailure(Throwable caught) { | ||
| throw new RuntimeException(caught); | ||
| } | ||
| }); | ||
| } | ||
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| protected void renderListBox(List<String> enumValues) { | ||
| String enumClassNameWithUnderscore = enumClassName.replace(".", "_"); | ||
| for (String enumValue : enumValues) { | ||
| lb.addItem(CrudLabelHelper.getString(enumClassNameWithUnderscore + "_" + enumValue), enumValue); | ||
| } | ||
| enumsLoaded = true; | ||
| if (pendingValue != null) { | ||
| renderSelectedValues(pendingValue); | ||
| pendingValue = null; | ||
| } | ||
| } | ||
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| private void renderSelectedValues(List<String> values) { | ||
| for (int i = 0; i < lb.getItemCount(); i++) { | ||
| String val = lb.getValue(i); | ||
| lb.setItemSelected(i, values.contains(val)); | ||
| } | ||
| } | ||
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| public void addInputFieldValidator(InputFieldValidator validator) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| public void setValidationError(String validationError) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| public boolean validate() { | ||
| validationError.setVisible(false); | ||
| if (required && getValue() == null) { | ||
| validationError.setVisible(true); | ||
| return false; | ||
| } | ||
| return true; | ||
| } | ||
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| /** | ||
| * Gets the list of selected items | ||
| * | ||
| * @return | ||
| */ | ||
| public List<String> getValue() { | ||
| if (pendingValue != null) { | ||
| return pendingValue; | ||
| } | ||
| List<String> values = new ArrayList<String>(); | ||
| for (int i = 0; i < lb.getItemCount(); i++) { | ||
| if (lb.isItemSelected(i)) { | ||
| values.add(lb.getValue(i)); | ||
| } | ||
| } | ||
| return values; | ||
| } | ||
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| /** | ||
| * Sets the list of selected items | ||
| * | ||
| * @param json | ||
| */ | ||
| public void setValue(List<String> value) { | ||
| if (enumsLoaded) { | ||
| renderSelectedValues(value); | ||
| } else { | ||
| //Set pending and wait for enum load | ||
| pendingValue = value; | ||
| } | ||
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| } | ||
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| @Override | ||
| public void highlight() { | ||
| lb.setFocus(true); | ||
| } | ||
|
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| } |
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