| 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 | import com.google.gwt.event.dom.client.ClickEvent; |
| 19 | import com.google.gwt.event.dom.client.ClickHandler; |
| 20 | import com.google.gwt.event.shared.HandlerRegistration; |
| 21 | import com.google.gwt.user.client.ui.ButtonBase; |
| 22 | |
| 23 | /** |
| 24 | * Button Base Model |
| 25 | * |
| 26 | * @author Steve McDuff |
| 27 | * |
| 28 | */ |
| 29 | public abstract class ButtonBaseModel extends FocusWidgetModel implements |
| 30 | ClickHandler |
| 31 | { |
| 32 | /** |
| 33 | * serialVersionUID |
| 34 | */ |
| 35 | private static final long serialVersionUID = -7329257759277536200L; |
| 36 | |
| 37 | /** |
| 38 | * button text |
| 39 | */ |
| 40 | private String text; |
| 41 | |
| 42 | /** |
| 43 | * registered click handler |
| 44 | */ |
| 45 | private transient HandlerRegistration clickHandler; |
| 46 | |
| 47 | /** |
| 48 | * get ButtonBase |
| 49 | * |
| 50 | * @return the button base |
| 51 | */ |
| 52 | public ButtonBase getButtonBase() |
| 53 | { |
| 54 | return (ButtonBase) getUIObject(); |
| 55 | } |
| 56 | |
| 57 | /** |
| 58 | * (non-JSDoc) |
| 59 | * |
| 60 | * @see org.deduced.viewer.web.shared.FocusWidgetModel#internalSynchronizeWithUI() |
| 61 | */ |
| 62 | @Override |
| 63 | public void internalSynchronizeWithUI() |
| 64 | { |
| 65 | super.internalSynchronizeWithUI(); |
| 66 | ButtonBase button = getButtonBase(); |
| 67 | button.setText(getText()); |
| 68 | } |
| 69 | |
| 70 | /** |
| 71 | * (non-JSDoc) |
| 72 | * |
| 73 | * @see org.deduced.viewer.web.shared.FocusWidgetModel#propertyChanged(org.deduced.viewer.web.shared.ChangeEvent) |
| 74 | */ |
| 75 | @Override |
| 76 | public void propertyChanged( |
| 77 | ChangeEvent event) |
| 78 | { |
| 79 | if (Utilities.equals(event.getName(), "text")) |
| 80 | { |
| 81 | setText((String) event.getSerializableValue()); |
| 82 | synchronizeWithUI(); |
| 83 | } |
| 84 | else |
| 85 | { |
| 86 | super.propertyChanged(event); |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | /** |
| 91 | * @param setText the text to set |
| 92 | */ |
| 93 | public void setText( |
| 94 | String setText) |
| 95 | { |
| 96 | text = setText; |
| 97 | } |
| 98 | |
| 99 | /** |
| 100 | * @return the text |
| 101 | */ |
| 102 | public String getText() |
| 103 | { |
| 104 | return text; |
| 105 | } |
| 106 | |
| 107 | /** |
| 108 | * (non-JSDoc) |
| 109 | * |
| 110 | * @see com.google.gwt.event.dom.client.ClickHandler#onClick(com.google.gwt.event.dom.client.ClickEvent) |
| 111 | */ |
| 112 | @Override |
| 113 | public void onClick( |
| 114 | ClickEvent event) |
| 115 | { |
| 116 | triggerSignal("click"); |
| 117 | } |
| 118 | |
| 119 | /** |
| 120 | * (non-JSDoc) |
| 121 | * |
| 122 | * @see org.deduced.viewer.web.shared.UserInterfaceModel#registerHandlers() |
| 123 | */ |
| 124 | @Override |
| 125 | protected void registerHandlers() |
| 126 | { |
| 127 | clickHandler = getButtonBase().addClickHandler(this); |
| 128 | super.registerHandlers(); |
| 129 | } |
| 130 | |
| 131 | /** |
| 132 | * (non-JSDoc) |
| 133 | * |
| 134 | * @see org.deduced.viewer.web.shared.UserInterfaceModel#unregisterHandlers() |
| 135 | */ |
| 136 | @Override |
| 137 | protected void unregisterHandlers() |
| 138 | { |
| 139 | unregisterHandler(clickHandler); |
| 140 | clickHandler = null; |
| 141 | super.unregisterHandlers(); |
| 142 | } |
| 143 | |
| 144 | } |