| 1 | /** |
| 2 | * Copyright 2005-2011 Steve McDuff d-duff@users.sourceforge.net |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.deduced.viewer.web.shared; |
| 17 | |
| 18 | /** |
| 19 | * Ordered Widget Model is used by ordered widget lists to store the ordering |
| 20 | * information and a link to the widget itself. |
| 21 | * |
| 22 | * @author Steve McDuff |
| 23 | * |
| 24 | */ |
| 25 | public class OrderedWidgetModel extends OrderedModel implements ModelContainer |
| 26 | { |
| 27 | |
| 28 | /** |
| 29 | * serialVersionUID |
| 30 | */ |
| 31 | private static final long serialVersionUID = -7507577994255921212L; |
| 32 | /** |
| 33 | * the ordered widget |
| 34 | */ |
| 35 | private WidgetModel widget; |
| 36 | |
| 37 | /** |
| 38 | * |
| 39 | * OrderedWidgetModel constructor |
| 40 | */ |
| 41 | public OrderedWidgetModel() |
| 42 | { |
| 43 | |
| 44 | } |
| 45 | |
| 46 | /** |
| 47 | * (non-JSDoc) |
| 48 | * |
| 49 | * @see org.deduced.viewer.web.shared.Model#registerChildModels() |
| 50 | */ |
| 51 | @Override |
| 52 | protected void registerChildModels() |
| 53 | { |
| 54 | registerChildModel(getWidget(), this); |
| 55 | super.registerChildModels(); |
| 56 | } |
| 57 | |
| 58 | /** |
| 59 | * (non-JSDoc) |
| 60 | * |
| 61 | * @see org.deduced.viewer.web.shared.OrderedModel#propertyChanged(org.deduced.viewer.web.shared.ChangeEvent) |
| 62 | */ |
| 63 | @Override |
| 64 | public void propertyChanged( |
| 65 | ChangeEvent event) |
| 66 | { |
| 67 | if (Utilities.equals(event.getName(), "component")) |
| 68 | { |
| 69 | WidgetModel newWidget = (WidgetModel) event.getSerializableValue(); |
| 70 | updateWidget(newWidget); |
| 71 | } |
| 72 | else |
| 73 | { |
| 74 | super.propertyChanged(event); |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | /** |
| 79 | * update Widget |
| 80 | * |
| 81 | * @param newWidget the new widget to use |
| 82 | */ |
| 83 | public void updateWidget( |
| 84 | WidgetModel newWidget) |
| 85 | { |
| 86 | setWidget(updateModel(newWidget, getWidget(), this)); |
| 87 | notifyParentThatModelChanged(); |
| 88 | } |
| 89 | |
| 90 | /** |
| 91 | * set the Widget |
| 92 | * |
| 93 | * @param newWidget the displayed widget |
| 94 | */ |
| 95 | public void setWidget( |
| 96 | WidgetModel newWidget) |
| 97 | { |
| 98 | widget = newWidget; |
| 99 | } |
| 100 | |
| 101 | /** |
| 102 | * delete the Widget |
| 103 | */ |
| 104 | private void deleteWidget() |
| 105 | { |
| 106 | WidgetModel currentWidget = getWidget(); |
| 107 | if (currentWidget != null) |
| 108 | { |
| 109 | currentWidget.delete(); |
| 110 | setWidget(null); |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | /** |
| 115 | * (non-JSDoc) |
| 116 | * |
| 117 | * @see org.deduced.viewer.web.shared.Model#deleteChildModels() |
| 118 | */ |
| 119 | @Override |
| 120 | protected void deleteChildModels() |
| 121 | { |
| 122 | deleteWidget(); |
| 123 | super.deleteChildModels(); |
| 124 | } |
| 125 | |
| 126 | /** |
| 127 | * @return the widget |
| 128 | */ |
| 129 | public WidgetModel getWidget() |
| 130 | { |
| 131 | return widget; |
| 132 | } |
| 133 | |
| 134 | /** |
| 135 | * (non-JSDoc) |
| 136 | * |
| 137 | * @see org.deduced.viewer.web.shared.OrderedModel#getOrderedValue() |
| 138 | */ |
| 139 | @Override |
| 140 | public Object getOrderedValue() |
| 141 | { |
| 142 | return widget; |
| 143 | } |
| 144 | |
| 145 | /** |
| 146 | * (non-JSDoc) |
| 147 | * |
| 148 | * @see org.deduced.viewer.web.shared.ModelContainer#modelChanged(org.deduced.viewer.web.shared.Model) |
| 149 | */ |
| 150 | @Override |
| 151 | public void modelChanged( |
| 152 | Model model) |
| 153 | { |
| 154 | notifyParentThatModelChanged(); |
| 155 | } |
| 156 | } |