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1 /* |
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2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: receives key pressed notifications |
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15 * |
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16 */ |
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17 |
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18 |
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19 #ifndef M_MMDRAGANDDROPOBSERVER_H |
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20 #define M_MMDRAGANDDROPOBSERVER_H |
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21 |
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22 /** |
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23 * Used by Multimedia Menu widgets to notify about dragging events. |
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24 * Whenever a drag begins HandleDragStartL() is invoked. |
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25 * When the highlight changes during drag, HandleDragOverL() is invoked. |
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26 * When item is dropped, HandleDragStopL() is invoked. |
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27 * The set of the three methods fully notifies the observer about the state |
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28 * of the drag. |
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29 * |
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30 * @code |
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31 * @endcode |
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32 * @lib mmwidgets |
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33 * @since S60 v3.0 |
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34 * @ingroup group_mmwidgets |
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35 */ |
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36 class MMmDragAndDropObserver |
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37 { |
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38 public: |
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39 /** |
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40 * Method is invoked on the observer, when the dragging starts. |
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41 * |
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42 * @since S60 v5.0 |
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43 * @param aModelItemIndex Index of item that has started dragging. |
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44 */ |
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45 virtual void HandleDragStartL( TInt aModelItemIndex ) = 0; |
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46 |
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47 /** |
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48 * Method is invoked on the observer, when highlight changes |
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49 * while dragging. |
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50 * |
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51 * @since S60 v5.0 |
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52 * @param aModelItemIndex Index of item that the dragged item hovers over. |
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53 */ |
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54 virtual void HandleDragOverL( TInt aModelItemIndex ) = 0; |
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55 |
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56 /** |
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57 * Method is invoked on the observer, when the item is dropped. |
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58 * |
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59 * @since S60 v5.0 |
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60 * @param aModelItemIndex Index of item on which the draging stops. |
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61 */ |
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62 virtual void HandleDragStopL( TInt aModelItemIndex ) = 0; |
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63 |
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64 /** |
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65 * Method is invoked on the observer, when the dragged item index changes. |
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66 * |
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67 * @since S60 v5.0 |
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68 * @param aModelItemIndex Index of item on which the draging stops. |
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69 */ |
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70 virtual void HandleDraggedIndexUpdatedL( TInt aModelItemIndex ) = 0; |
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71 |
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72 /** |
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73 * Method is invoked on the observer, when the move item event is needed. |
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74 * |
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75 * @since S60 v5.0 |
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76 * @param aRecipientId Index of item on which the move event invokes. |
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77 * @param aEventParameters Event parameters. |
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78 */ |
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79 virtual void HandleTriggerMoveItemL( const TInt aRecipientId, |
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80 CLiwGenericParamList* aEventParameters) = 0; |
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81 |
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82 }; |
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83 |
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84 #endif // M_MMDRAGANDDROPOBSERVER_H |