| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.wicket.markup.html.form; |
| |
| import org.apache.wicket.WicketRuntimeException; |
| |
| /** |
| * Selects and deselects all Check components under the same CheckGroup as itself. Selection |
| * toggling is accomplished by generating an onclick javascript event handler. This component must |
| * be attached to markup of type <input type="checkbox"/>. Additionally, if |
| * {@link #CheckGroupSelector(String)} constuctor is used the selector must be a descendant of the |
| * CheckGroup it is meant to affect. |
| * |
| * @see org.apache.wicket.markup.html.form.CheckGroup |
| * @see org.apache.wicket.markup.html.form.Check |
| * |
| * @author Igor Vaynberg |
| * @author Carl-Eric Menzel |
| */ |
| public class CheckGroupSelector extends AbstractCheckSelector |
| { |
| /** */ |
| private static final long serialVersionUID = 1L; |
| |
| private CheckGroup<?> group; |
| |
| /** |
| * A Selector that will look for a {@link CheckGroup} in its parent hierarchy. |
| * |
| * @param id |
| * component id |
| */ |
| public CheckGroupSelector(String id) |
| { |
| this(id, null); |
| } |
| |
| /** |
| * A Selector that will work with the given group. |
| * |
| * @param id |
| * component id |
| * @param group |
| * group to work with |
| */ |
| public CheckGroupSelector(String id, CheckGroup<?> group) |
| { |
| super(id); |
| |
| this.group = group; |
| } |
| |
| private CheckGroup<?> getGroup() |
| { |
| CheckGroup<?> group = this.group; |
| if (group == null) |
| { |
| group = findParent(CheckGroup.class); |
| this.group = group; |
| } |
| return group; |
| } |
| |
| @Override |
| protected void onBeforeRender() |
| { |
| super.onBeforeRender(); |
| |
| CheckGroup<?> group = getGroup(); |
| |
| // make sure the form we need outputs its markup id. |
| group.getForm().setOutputMarkupId(true); |
| } |
| |
| @Override |
| public boolean isEnabled() |
| { |
| CheckGroup<?> group = getGroup(); |
| if (group == null) |
| { |
| return true; |
| } |
| else |
| { |
| return group.isEnableAllowed() && group.isEnabledInHierarchy(); |
| } |
| } |
| |
| /** |
| * Find all checkboxes in the containing form with the same input name as the {@link CheckGroup} |
| * . |
| */ |
| @Override |
| protected CharSequence getFindCheckboxesFunction() |
| { |
| CheckGroup<?> group = getGroup(); |
| if (group == null) |
| { |
| throw new WicketRuntimeException( |
| "CheckGroupSelector component [" + |
| getPath() + |
| "] cannot find its parent CheckGroup. All CheckGroupSelector components must be a child of or below in the hierarchy of a CheckGroup component."); |
| } |
| |
| // we search the complete form because the CheckGroup might not output its markup tag or be |
| // located on a <wicket:container> |
| return String.format("Wicket.CheckboxSelector.findCheckboxesFunction('%s','%s')", |
| group.getForm().getMarkupId(), group.getInputName()); |
| } |
| } |