[927] | 1 | // Copyright 2012 Georg-August-Universität Göttingen, Germany |
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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 | |
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[922] | 15 | package de.ugoe.cs.autoquest.eventcore.gui; |
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[708] | 16 | |
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| 17 | import java.util.LinkedList; |
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| 18 | import java.util.List; |
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| 19 | |
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[922] | 20 | import de.ugoe.cs.autoquest.eventcore.Event; |
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| 21 | import de.ugoe.cs.autoquest.eventcore.guimodel.IGUIElement; |
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[708] | 22 | |
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| 23 | /** |
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| 24 | * <p> |
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| 25 | * This class iterates the provided sequence and sets the target of all key interaction events |
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| 26 | * to the GUI element having the current keyboard focus. The current keyboard focus is determined |
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| 27 | * either by keyboard focus events or by using the target of the first key interaction in the |
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[719] | 28 | * provided sequence. Events changing the keyboard focus are discarded herewith. |
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[708] | 29 | * </p> |
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| 30 | * |
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| 31 | * @version $Revision: $ $Date: 29.08.2012$ |
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| 32 | * @author 2012, last modified by $Author: pharms$ |
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| 33 | */ |
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| 34 | public class KeyInteractionTargetCorrector { |
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| 35 | |
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| 36 | /** |
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| 37 | * <p> |
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| 38 | * This method performs the work described in the description of the class. A new list is |
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| 39 | * instantiated and returned. This list is filled with the events provided by the sequence |
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| 40 | * being the parameter of the method except for key interaction events. Those are replaced |
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| 41 | * by a new event with the identical event type but the corrected event target. |
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| 42 | * </p> |
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| 43 | * |
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| 44 | * @param sequence the event sequence to correct the key interactions targets in |
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| 45 | * |
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| 46 | * @return the resulting sequence, in which key interactions have the correct target, i.e. |
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| 47 | * the GUI element having the keyboard focus |
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| 48 | */ |
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| 49 | public List<Event> correctKeyInteractionTargets(List<Event> sequence) { |
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| 50 | List<Event> resultingSequence = new LinkedList<Event>(); |
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| 51 | IGUIElement currentKeyboardFocusGUIElement = null; |
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| 52 | |
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| 53 | for (Event event : sequence) { |
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[1432] | 54 | Event nextEvent = event; |
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[708] | 55 | if (event.getTarget() instanceof IGUIElement) { |
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| 56 | if (event.getType() instanceof KeyboardFocusChange) { |
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| 57 | currentKeyboardFocusGUIElement = (IGUIElement) event.getTarget(); |
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[1432] | 58 | nextEvent = null; |
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[708] | 59 | } |
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| 60 | else if (event.getType() instanceof KeyInteraction) { |
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| 61 | if (currentKeyboardFocusGUIElement == null) { |
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| 62 | currentKeyboardFocusGUIElement = (IGUIElement) event.getTarget(); |
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| 63 | } |
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| 64 | |
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| 65 | if (!currentKeyboardFocusGUIElement.equals(event.getTarget())) { |
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[1432] | 66 | nextEvent = new Event(event.getType(), currentKeyboardFocusGUIElement); |
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| 67 | nextEvent.setTimestamp(event.getTimestamp()); |
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| 68 | |
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| 69 | // TODO copy event parameters |
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[708] | 70 | } |
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| 71 | } |
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| 72 | } |
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| 73 | |
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[1432] | 74 | if (nextEvent != null) { |
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| 75 | resultingSequence.add(nextEvent); |
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[708] | 76 | } |
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| 77 | } |
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| 78 | |
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| 79 | return resultingSequence; |
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| 80 | } |
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| 81 | } |
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