Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
Do |
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| 2.0;2 |
1 | // Copyright 2004, 2005 The Apache Software Foundation |
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2 | // |
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3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
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4 | // you may not use this file except in compliance with the License. |
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5 | // You may obtain a copy of the License at |
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6 | // |
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7 | // http://www.apache.org/licenses/LICENSE-2.0 |
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8 | // |
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9 | // Unless required by applicable law or agreed to in writing, software |
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10 | // distributed under the License is distributed on an "AS IS" BASIS, |
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11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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12 | // See the License for the specific language governing permissions and |
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13 | // limitations under the License. |
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14 | ||
15 | package org.apache.tapestry.wml; |
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16 | ||
17 | import org.apache.hivemind.HiveMind; |
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18 | import org.apache.tapestry.AbstractComponent; |
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19 | import org.apache.tapestry.IMarkupWriter; |
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20 | import org.apache.tapestry.IRequestCycle; |
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21 | ||
22 | /** |
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23 | * The do element provides a general mechanism for the user to act upon the |
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24 | * current card, in other words a card-level user interface element. The |
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25 | * representation of the do element is user agent dependent and the author must |
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26 | * only assume that the element is mapped to a unique user interface widget that |
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27 | * the user can activate. For example, the widget mapping may be to a |
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28 | * graphically rendered button, a soft or function key, a voice-activated |
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29 | * command sequence, or any other interface that has a simple "activate" |
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30 | * operation with no inter-operation persistent state. The do element may appear |
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31 | * at both the card and deck-level. |
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32 | * |
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33 | * @author David Solis |
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34 | * @since 3.0 |
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35 | */ |
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36 | ||
37 | 0 | public abstract class Do extends AbstractComponent |
38 | { |
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39 | ||
40 | /** |
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41 | * @see AbstractComponent#renderComponent(IMarkupWriter, IRequestCycle) |
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42 | */ |
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43 | ||
44 | protected void renderComponent(IMarkupWriter writer, IRequestCycle cycle) |
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45 | { |
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46 | 0 | boolean render = !cycle.isRewinding(); |
47 | ||
48 | 0 | if (render) |
49 | { |
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50 | 0 | writer.begin("do"); |
51 | ||
52 | 0 | writer.attribute("type", getType()); |
53 | ||
54 | 0 | String label = getLabel(); |
55 | 0 | if (HiveMind.isNonBlank(label)) writer.attribute("label", label); |
56 | ||
57 | 0 | renderInformalParameters(writer, cycle); |
58 | } |
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59 | ||
60 | 0 | renderBody(writer, cycle); |
61 | ||
62 | 0 | if (render) writer.end(); |
63 | 0 | } |
64 | ||
65 | public abstract String getType(); |
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66 | ||
67 | public abstract String getLabel(); |
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68 | } |