| /* |
| * 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. |
| */ |
| |
| ;(function (undefined) { |
| |
| 'use strict'; |
| |
| if (typeof(Wicket.CheckboxSelector) === 'object') { |
| return; |
| } |
| |
| Wicket.CheckboxSelector = { |
| |
| /** |
| * Called in the onclick handler of the select-all-checkbox. Updates all |
| * associated checkboxes by simulating a click on those that need to have |
| * their state changed. |
| * |
| * @param newCheckedState |
| * the state to which all checkboxes should be set |
| * @param findCheckboxes |
| * a function that returns an array containing the IDs of all |
| * associated checkboxes |
| */ |
| updateAllCheckboxes: function(newCheckedState, findCheckboxes) { |
| |
| var checkboxes = findCheckboxes(); |
| for (var i = 0; i < checkboxes.length; i++) { |
| var checkbox = checkboxes[i]; |
| if (checkbox.checked !== newCheckedState) { |
| checkbox.click(); |
| } |
| } |
| }, |
| |
| /** |
| * Called in the onclick handlers of the associated checkboxes if the auto |
| * update feature is active. Checks the state of all checkboxes - if all are |
| * checked, the selector is checked too. Otherwise the selector is |
| * unchecked. |
| * |
| * @param selectorId |
| * the ID of the selector checkbox |
| * @param findCheckboxes |
| * a function that returns an array containing the IDs of all |
| * associated checkboxes |
| */ |
| updateSelectorState: function(selectorId, findCheckboxes) { |
| var checkboxes = findCheckboxes(), |
| allChecked = checkboxes.length > 0; |
| |
| for (var i = 0; i < checkboxes.length; i++) { |
| if ((checkboxes[i].disabled === false) && (checkboxes[i].checked === false)) { |
| allChecked = false; |
| break; |
| } |
| } |
| var selector = document.getElementById(selectorId); |
| selector.checked = allChecked; |
| }, |
| |
| /** |
| * Called in the onLoad event if the auto update feature is active. Attaches |
| * an onclick handler to all associated checkboxes. |
| * |
| * @param selectorId |
| * the ID of the selector checkbox |
| * @param findCheckboxes |
| * a function that returns an array containing the IDs of all |
| * associated checkboxes |
| */ |
| attachUpdateHandlers: function(selectorId, findCheckboxes) { |
| var checkboxes = findCheckboxes(), |
| clickHandler = function() { |
| Wicket.CheckboxSelector.updateSelectorState(selectorId, findCheckboxes); |
| }; |
| |
| for (var i = 0; i < checkboxes.length; i++) { |
| Wicket.Event.add(checkboxes[i], 'click', clickHandler); |
| } |
| // update selector state once to get the right initial state |
| Wicket.CheckboxSelector.updateSelectorState(selectorId, findCheckboxes); |
| }, |
| |
| /** |
| * Called in the onLoad event to initialize the selector checkbox. |
| * @param selectorId |
| * the ID of the selector checkbox |
| * @param findCheckboxes |
| * a function that returns an array containing the IDs of all |
| * associated checkboxes |
| */ |
| initializeSelector: function(selectorId, findCheckboxes) { |
| var selector = document.getElementById(selectorId); |
| Wicket.Event.add(selector, 'click', function() { |
| Wicket.CheckboxSelector.updateAllCheckboxes(selector.checked, findCheckboxes); |
| }); |
| }, |
| |
| /** |
| * Returns a closure that finds all checkboxes associated with the given |
| * CheckboxMultipleChoice. |
| * |
| * @param parentId |
| * The markup ID of the containing form component |
| */ |
| findCheckboxesFunction: function(parentId, name) { |
| return function() { |
| var result = []; |
| var inputNodes = document.getElementById(parentId).getElementsByTagName('input'); |
| for ( var i = 0; i < inputNodes.length; i++) { |
| var inputNode = inputNodes[i]; |
| if (inputNode.name === name) { |
| result.push(inputNode); |
| } |
| } |
| return result; |
| }; |
| }, |
| |
| /** |
| * Returns a closure that gets all checkboxes with the given IDs. |
| * |
| * @param checkBoxIDs |
| * An array containing the markup IDs of all checkboxes this |
| * selector should control. |
| */ |
| getCheckboxesFunction: function(checkBoxIDs) { |
| return function() { |
| var result = []; |
| |
| for (var i = 0; i < checkBoxIDs.length; i++) { |
| var checkBox = document.getElementById(checkBoxIDs[i]); |
| if (checkBox) { |
| result.push(checkBox); |
| } |
| } |
| return result; |
| }; |
| } |
| }; |
| |
| })(); |