projects/dwt-mac: dwt/dnd/DropTarget.d annotate

annotate dwt/dnd/DropTarget.d @ 99:d32621bf0f90

Ported dwt.dnd.DropTarget

author	Jacob Carlborg <doob@me.com>
date	Wed, 31 Dec 2008 13:16:18 +0100
parents	d8635bb48c7c
children	a2d82e6fd054

rev	line source
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	1 /*******************************************************************************
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	2 * Copyright (c) 2000, 2008 IBM Corporation and others.
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	3 * All rights reserved. This program and the accompanying materials
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	4 * are made available under the terms of the Eclipse Public License v1.0
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	5 * which accompanies this distribution, and is available at
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	6 * http://www.eclipse.org/legal/epl-v10.html
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	7 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	8 * Contributors:
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	9 * IBM Corporation - initial API and implementation
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	10 *
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	11 * Port to the D programming language:
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	12 * Jacob Carlborg <doob@me.com>
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	13 *******************************************************************************/
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	14 module dwt.dnd.DropTarget;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	15
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	16 import dwt.dwthelper.utils;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	17
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	18 import dwt.DWT;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	19 import dwt.DWTError;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	20 import dwt.DWTException;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	21 import dwt.internal.cocoa.NSApplication;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	22 import dwt.internal.cocoa.NSArray;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	23 import dwt.internal.cocoa.NSCursor;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	24 import dwt.internal.cocoa.NSEvent;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	25 import dwt.internal.cocoa.NSMutableArray;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	26 import dwt.internal.cocoa.NSObject;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	27 import dwt.internal.cocoa.NSPasteboard;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	28 import dwt.internal.cocoa.NSPoint;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	29 import dwt.internal.cocoa.NSRect;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	30 import dwt.internal.cocoa.NSScreen;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	31 import dwt.internal.cocoa.NSString;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	32 import dwt.internal.cocoa.NSURL;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	33 import dwt.internal.cocoa.OS;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	34 import dwt.internal.cocoa.id;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	35 import dwt.widgets.Control;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	36 import dwt.widgets.Display;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	37 import dwt.widgets.Event;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	38 import dwt.widgets.Listener;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	39 import dwt.widgets.Table;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	40 import dwt.widgets.Tree;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	41 import dwt.widgets.Widget;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	42
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	43 import dwt.dnd.DND;
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	44 import dwt.dnd.DNDEvent;
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	45 import dwt.dnd.DNDListener;
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	46 import dwt.dnd.DropTargetEffect;
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	47 import dwt.dnd.DropTargetListener;
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	48 import dwt.dnd.TableDropTargetEffect;
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	49 import dwt.dnd.Transfer;
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	50 import dwt.dnd.TransferData;
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	51 import dwt.dwthelper.array;
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	52 import dwt.internal.objc.cocoa.Cocoa;
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	53 import objc = dwt.internal.objc.runtime;
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	54
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	55 /**
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	56 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	57 * Class <code>DropTarget</code> defines the target object for a drag and drop transfer.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	58 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	59 * IMPORTANT: This class is <em>not</em> intended to be subclassed.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	60 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	61 * <p>This class identifies the <code>Control</code> over which the user must position the cursor
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	62 * in order to drop the data being transferred. It also specifies what data types can be dropped on
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	63 * this control and what operations can be performed. You may have several DropTragets in an
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	64 * application but there can only be a one to one mapping between a <code>Control</code> and a <code>DropTarget</code>.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	65 * The DropTarget can receive data from within the same application or from other applications
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	66 * (such as text dragged from a text editor like Word).</p>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	67 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	68 * <code><pre>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	69 * int operations = DND.DROP_MOVE \| DND.DROP_COPY \| DND.DROP_LINK;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	70 * Transfer[] types = new Transfer[] {TextTransfer.getInstance()};
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	71 * DropTarget target = new DropTarget(label, operations);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	72 * target.setTransfer(types);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	73 * </code></pre>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	74 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	75 * <p>The application is notified of data being dragged over this control and of when a drop occurs by
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	76 * implementing the interface <code>DropTargetListener</code> which uses the class
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	77 * <code>DropTargetEvent</code>. The application can modify the type of drag being performed
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	78 * on this Control at any stage of the drag by modifying the <code>event.detail</code> field or the
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	79 * <code>event.currentDataType</code> field. When the data is dropped, it is the responsibility of
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	80 * the application to copy this data for its own purposes.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	81 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	82 * <code><pre>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	83 * target.addDropListener (new DropTargetListener() {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	84 * public void dragEnter(DropTargetEvent event) {};
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	85 * public void dragOver(DropTargetEvent event) {};
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	86 * public void dragLeave(DropTargetEvent event) {};
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	87 * public void dragOperationChanged(DropTargetEvent event) {};
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	88 * public void dropAccept(DropTargetEvent event) {}
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	89 * public void drop(DropTargetEvent event) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	90 * // A drop has occurred, copy over the data
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	91 * if (event.data is null) { // no data to copy, indicate failure in event.detail
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	92 * event.detail = DND.DROP_NONE;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	93 * return;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	94 * }
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	95 * label.setText ((String) event.data); // data copied to label text
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	96 * }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	97 * });
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	98 * </pre></code>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	99 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	100 * <dl>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	101 * <dt><b>Styles</b></dt> <dd>DND.DROP_NONE, DND.DROP_COPY, DND.DROP_MOVE, DND.DROP_LINK</dd>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	102 * <dt><b>Events</b></dt> <dd>DND.DragEnter, DND.DragLeave, DND.DragOver, DND.DragOperationChanged,
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	103 * DND.DropAccept, DND.Drop </dd>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	104 * </dl>
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	105 *
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	106 * @see <a href="http://www.eclipse.org/swt/snippets/#dnd">Drag and Drop snippets</a>
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	107 * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Example: DNDExample</a>
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	108 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	109 */
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	110 public class DropTarget : Widget {
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	111
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	112 static objc.IMP proc2Args, proc3Args;
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	113
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	114 static this () {
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	115 proc2Args = cast(objc.IMP) &dropTargetProc2;
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	116 proc3Args = cast(objc.IMP) &dropTargetProc3;
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	117 }
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	118
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	119 Control control;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	120 Listener controlListener;
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	121 Transfer[] transferAgents;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	122 DropTargetEffect dropEffect;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	123 int feedback = DND.FEEDBACK_NONE;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	124
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	125 // Track application selections
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	126 TransferData selectedDataType;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	127 int selectedOperation;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	128
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	129 // workaround - There is no event for "operation changed" so track operation based on key state
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	130 int keyOperation = -1;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	131
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	132 static const String DEFAULT_DROP_TARGET_EFFECT = "DEFAULT_DROP_TARGET_EFFECT"; //$NON-NLS-1$
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	133
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	134 void addDragHandlers() {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	135 // Our strategy here is to dynamically add methods to the control's class that are required
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	136 // by NSDraggingDestination. Then, when setTransfer is called, we just register
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	137 // the types with the Control's NSView and AppKit will call the methods in the protocol
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	138 // when a drag goes over the view.
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	139
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	140 objc.Class cls = OS.object_getClass(control.view.id);
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	141
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	142 if (cls is null) {
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	143 DND.error(DND.ERROR_CANNOT_INIT_DROP);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	144 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	145
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	146 // If we already added it, no need to do it again.
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	147 objc.IMP procPtr = OS.class_getMethodImplementation(cls, OS.sel_draggingEnded_);
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	148 if (procPtr is proc3Args) return;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	149
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	150 // Add the NSDraggingDestination callbacks
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	151 OS.class_addMethod(cls, OS.sel_draggingEntered_, proc3Args, "@:@");
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	152 OS.class_addMethod(cls, OS.sel_draggingUpdated_, proc3Args, "@:@");
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	153 OS.class_addMethod(cls, OS.sel_draggingExited_, proc3Args, "@:@");
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	154 OS.class_addMethod(cls, OS.sel_performDragOperation_, proc3Args, "@:@");
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	155 OS.class_addMethod(cls, OS.sel_wantsPeriodicDraggingUpdates, proc2Args, "@:");
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	156 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	157
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	158 /**
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	159 * Adds the listener to the collection of listeners who will
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	160 * be notified when a drag and drop operation is in progress, by sending
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	161 * it one of the messages defined in the <code>DropTargetListener</code>
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	162 * interface.
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	163 *
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	164 * <p><ul>
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	165 * <li><code>dragEnter</code> is called when the cursor has entered the drop target boundaries
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	166 * <li><code>dragLeave</code> is called when the cursor has left the drop target boundaries and just before
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	167 * the drop occurs or is cancelled.
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	168 * <li><code>dragOperationChanged</code> is called when the operation being performed has changed
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	169 * (usually due to the user changing the selected modifier key(s) while dragging)
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	170 * <li><code>dragOver</code> is called when the cursor is moving over the drop target
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	171 * <li><code>dropAccept</code> is called just before the drop is performed. The drop target is given
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	172 * the chance to change the nature of the drop or veto the drop by setting the <code>event.detail</code> field
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	173 * <li><code>drop</code> is called when the data is being dropped
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	174 * </ul></p>
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	175 *
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	176 * @param listener the listener which should be notified
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	177 *
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	178 * @exception IllegalArgumentException <ul>
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	179 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	180 * </ul>
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	181 * @exception DWTException <ul>
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	182 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	183 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	184 * </ul>
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	185 *
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	186 * @see DropTargetListener
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	187 * @see #getDropListeners
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	188 * @see #removeDropListener
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	189 * @see DropTargetEvent
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	190 */
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	191 public void addDropListener(DropTargetListener listener) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	192 if (listener is null) DND.error (DWT.ERROR_NULL_ARGUMENT);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	193 DNDListener typedListener = new DNDListener (listener);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	194 typedListener.dndWidget = this;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	195 addListener (DND.DragEnter, typedListener);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	196 addListener (DND.DragLeave, typedListener);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	197 addListener (DND.DragOver, typedListener);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	198 addListener (DND.DragOperationChanged, typedListener);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	199 addListener (DND.Drop, typedListener);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	200 addListener (DND.DropAccept, typedListener);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	201 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	202
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	203 static int checkStyle (int style) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	204 if (style is DWT.NONE) return DND.DROP_MOVE;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	205 return style;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	206 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	207
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	208 protected void checkSubclass () {
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	209 String name = this.classinfo.name;
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	210 String validName = DropTarget.classinfo.name;
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	211 if (!validName.equals(name)) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	212 DND.error (DWT.ERROR_INVALID_SUBCLASS);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	213 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	214 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	215
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	216 int draggingEntered(NSObject sender) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	217 selectedDataType = null;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	218 selectedOperation = 0;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	219
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	220 DNDEvent event = new DNDEvent();
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	221 if (!setEventData(sender, event)) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	222 keyOperation = -1;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	223 if (OS.PTR_SIZEOF is 4) OS.SetThemeCursor(OS.kThemeNotAllowedCursor);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	224 return OS.NSDragOperationNone;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	225 }
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	226
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	227 int allowedOperations = event.operations;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	228 TransferData[] allowedDataTypes = new TransferData[event.dataTypes.length];
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	229 System.arraycopy(event.dataTypes, 0, allowedDataTypes, 0, allowedDataTypes.length);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	230
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	231 notifyListeners(DND.DragEnter, event);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	232
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	233 if (event.detail is DND.DROP_DEFAULT) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	234 event.detail = (allowedOperations & DND.DROP_MOVE) !is 0 ? DND.DROP_MOVE : DND.DROP_NONE;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	235 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	236
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	237 selectedDataType = null;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	238 for (int i = 0; i < allowedDataTypes.length; i++) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	239 if (allowedDataTypes[i].type is event.dataType.type) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	240 selectedDataType = allowedDataTypes[i];
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	241 break;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	242 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	243 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	244
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	245 selectedOperation = DND.DROP_NONE;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	246 if (selectedDataType !is null && (allowedOperations & event.detail) !is 0) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	247 selectedOperation = event.detail;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	248 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	249
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	250 int osOperation = opToOsOp(selectedOperation);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	251
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	252 if (OS.PTR_SIZEOF is 4) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	253 switch (selectedOperation) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	254 case DND.DROP_COPY:
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	255 OS.SetThemeCursor(OS.kThemeCopyArrowCursor);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	256 break;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	257 case DND.DROP_LINK:
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	258 OS.SetThemeCursor(OS.kThemeAliasArrowCursor);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	259 break;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	260 case DND.DROP_MOVE:
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	261 NSCursor.arrowCursor().set();
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	262 break;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	263 default:
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	264 OS.SetThemeCursor(OS.kThemeNotAllowedCursor);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	265 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	266 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	267 return osOperation;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	268 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	269
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	270 void draggingExited(NSObject sender) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	271 NSCursor.arrowCursor().set();
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	272 if (keyOperation is -1) return;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	273 keyOperation = -1;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	274
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	275 DNDEvent event = new DNDEvent();
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	276 event.widget = this;
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	277 event.time = cast(int)System.currentTimeMillis();
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	278 event.detail = DND.DROP_NONE;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	279 notifyListeners(DND.DragLeave, event);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	280 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	281
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	282 int draggingUpdated(NSObject sender) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	283 if (sender is null) return OS.NSDragOperationNone;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	284 int oldKeyOperation = keyOperation;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	285
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	286 DNDEvent event = new DNDEvent();
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	287 if (!setEventData(sender, event)) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	288 keyOperation = -1;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	289 if (OS.PTR_SIZEOF is 4) OS.SetThemeCursor(OS.kThemeNotAllowedCursor);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	290 return OS.NSDragOperationNone;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	291 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	292
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	293 int allowedOperations = event.operations;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	294 TransferData[] allowedDataTypes = new TransferData[event.dataTypes.length];
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	295 System.arraycopy(event.dataTypes, 0, allowedDataTypes, 0, allowedDataTypes.length);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	296
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	297 if (keyOperation is oldKeyOperation) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	298 event.type = DND.DragOver;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	299 event.dataType = selectedDataType;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	300 event.detail = selectedOperation;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	301 } else {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	302 event.type = DND.DragOperationChanged;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	303 event.dataType = selectedDataType;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	304 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	305 notifyListeners(event.type, event);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	306 if (event.detail is DND.DROP_DEFAULT) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	307 event.detail = (allowedOperations & DND.DROP_MOVE) !is 0 ? DND.DROP_MOVE : DND.DROP_NONE;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	308 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	309
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	310 selectedDataType = null;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	311 for (int i = 0; i < allowedDataTypes.length; i++) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	312 if (allowedDataTypes[i].type is event.dataType.type) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	313 selectedDataType = allowedDataTypes[i];
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	314 break;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	315 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	316 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	317
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	318 selectedOperation = DND.DROP_NONE;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	319 if (selectedDataType !is null && ((allowedOperations & event.detail) is event.detail)) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	320 selectedOperation = event.detail;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	321 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	322 return opToOsOp(selectedOperation);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	323 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	324
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	325 /**
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	326 * Creates a new <code>DropTarget</code> to allow data to be dropped on the specified
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	327 * <code>Control</code>.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	328 * Creating an instance of a DropTarget may cause system resources to be allocated
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	329 * depending on the platform. It is therefore mandatory that the DropTarget instance
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	330 * be disposed when no longer required.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	331 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	332 * @param control the <code>Control</code> over which the user positions the cursor to drop the data
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	333 * @param style the bitwise OR'ing of allowed operations; this may be a combination of any of
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	334 * DND.DROP_NONE, DND.DROP_COPY, DND.DROP_MOVE, DND.DROP_LINK
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	335 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	336 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	337 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	338 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	339 * </ul>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	340 * @exception DWTError <ul>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	341 * <li>ERROR_CANNOT_INIT_DROP - unable to initiate drop target; this will occur if more than one
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	342 * drop target is created for a control or if the operating system will not allow the creation
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	343 * of the drop target</li>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	344 * </ul>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	345 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	346 * <p>NOTE: ERROR_CANNOT_INIT_DROP should be an DWTException, since it is a
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	347 * recoverable error, but can not be changed due to backward compatibility.</p>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	348 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	349 * @see Widget#dispose
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	350 * @see DropTarget#checkSubclass
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	351 * @see DND#DROP_NONE
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	352 * @see DND#DROP_COPY
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	353 * @see DND#DROP_MOVE
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	354 * @see DND#DROP_LINK
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	355 */
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	356 public this(Control control, int style) {
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	357 transferAgents = new Transfer[0];
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	358
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	359 super(control, checkStyle(style));
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	360 this.control = control;
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	361
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	362 if (control.getData(DND.DROP_TARGET_KEY) !is null) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	363 DND.error(DND.ERROR_CANNOT_INIT_DROP);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	364 }
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	365
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	366 control.setData(DND.DROP_TARGET_KEY, this);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	367
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	368 controlListener = new class () Listener {
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	369 public void handleEvent (Event event) {
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	370 if (!this.outer.isDisposed()) {
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	371 this.outer.dispose();
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	372 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	373 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	374 };
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	375 control.addListener (DWT.Dispose, controlListener);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	376
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	377 this.addListener(DWT.Dispose, new class () Listener {
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	378 public void handleEvent (Event event) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	379 onDispose();
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	380 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	381 });
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	382
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	383 Object effect = control.getData(DEFAULT_DROP_TARGET_EFFECT);
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	384 if (cast(DropTargetEffect) effect) {
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	385 dropEffect = cast(DropTargetEffect) effect;
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	386 } else if (cast(Table) control) {
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	387 dropEffect = new TableDropTargetEffect(cast(Table) control);
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	388 } else if (cast(Tree) control) {
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	389 dropEffect = new TreeDropTargetEffect(cast(Tree) control);
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	390 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	391
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	392 addDragHandlers();
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	393 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	394
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	395 static objc.id dropTargetProc2(objc.id id, objc.SEL sel) {
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	396 Display display = Display.findDisplay(Thread.currentThread());
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	397 if (display is null \|\| display.isDisposed()) return null;
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	398 Widget widget = display.findWidget(id);
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	399 if (widget is null) return null;
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	400 DropTarget dt = cast(DropTarget)widget.getData(DND.DROP_TARGET_KEY);
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	401 if (dt is null) return null;
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	402
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	403 if (sel is OS.sel_wantsPeriodicDraggingUpdates) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	404 return dt.wantsPeriodicDraggingUpdates() ? 1 : 0;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	405 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	406
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	407 return null;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	408 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	409
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	410 static objc.id dropTargetProc3(objc.id id, objc.SEL sel, objc.id arg0) {
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	411 Display display = Display.findDisplay(Thread.currentThread());
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	412 if (display is null \|\| display.isDisposed()) return null;
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	413 Widget widget = display.findWidget(id);
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	414 if (widget is null) return null;
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	415 DropTarget dt = cast(DropTarget)widget.getData(DND.DROP_TARGET_KEY);
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	416 if (dt is null) return null;
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	417
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	418 // arg0 is _always_ the sender, and implements NSDraggingInfo.
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	419 // Looks like an NSObject for our purposes, though.
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	420 NSObject sender = new NSObject(arg0);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	421
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	422 if (sel is OS.sel_draggingEntered_) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	423 return dt.draggingEntered(sender);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	424 } else if (sel is OS.sel_draggingUpdated_) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	425 return dt.draggingUpdated(sender);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	426 } else if (sel is OS.sel_draggingExited_) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	427 dt.draggingExited(sender);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	428 } else if (sel is OS.sel_performDragOperation_) {
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	429 return dt.performDragOperation(sender) ? cast(objc.id) 1 : null;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	430 }
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	431
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	432 return null;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	433 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	434
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	435 /**
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	436 * Returns the Control which is registered for this DropTarget. This is the control over which the
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	437 * user positions the cursor to drop the data.
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	438 *
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	439 * @return the Control which is registered for this DropTarget
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	440 */
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	441 public Control getControl () {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	442 return control;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	443 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	444
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	445 /**
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	446 * Returns an array of listeners who will be notified when a drag and drop
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	447 * operation is in progress, by sending it one of the messages defined in
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	448 * the <code>DropTargetListener</code> interface.
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	449 *
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	450 * @return the listeners who will be notified when a drag and drop
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	451 * operation is in progress
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	452 *
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	453 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	454 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	455 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	456 * </ul>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	457 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	458 * @see DropTargetListener
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	459 * @see #addDropListener
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	460 * @see #removeDropListener
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	461 * @see DropTargetEvent
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	462 *
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	463 * @since 3.4
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	464 */
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	465 public DropTargetListener[] getDropListeners() {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	466 Listener[] listeners = getListeners(DND.DragEnter);
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	467 int length_ = listeners.length;
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	468 DropTargetListener[] dropListeners = new DropTargetListener[length_];
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	469 int count = 0;
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	470 for (int i = 0; i < length_; i++) {
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	471 Listener listener = listeners[i];
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	472 if (cast(DNDListener) listener) {
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	473 dropListeners[count] = cast(DropTargetListener) (cast(DNDListener) listener).getEventListener();
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	474 count++;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	475 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	476 }
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	477 if (count is length_) return dropListeners;
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	478 DropTargetListener[] result = new DropTargetListener[count];
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	479 System.arraycopy(dropListeners, 0, result, 0, count);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	480 return result;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	481 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	482
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	483 /**
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	484 * Returns the drop effect for this DropTarget. This drop effect will be
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	485 * used during a drag and drop to display the drag under effect on the
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	486 * target widget.
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	487 *
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	488 * @return the drop effect that is registered for this DropTarget
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	489 *
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	490 * @since 3.3
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	491 */
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	492 public DropTargetEffect getDropTargetEffect() {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	493 return dropEffect;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	494 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	495
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	496 int getOperationFromKeyState() {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	497 // The NSDraggingInfo object already combined the modifier keys with the
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	498 // drag source's allowed events. This might be better accomplished by diffing
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	499 // the base drag source mask with the active drag state mask instead of snarfing
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	500 // the current event.
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	501
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	502 // See documentation on [NSDraggingInfo draggingSourceOperationMask] for the
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	503 // correct Cocoa behavior. Control + Option or Command is NSDragOperationGeneric,
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	504 // or DND.DROP_DEFAULT in the DWT.
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	505 NSEvent currEvent = NSApplication.sharedApplication().currentEvent();
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	506 NSUInteger modifiers = currEvent.modifierFlags();
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	507 bool option = (modifiers & OS.NSAlternateKeyMask) is OS.NSAlternateKeyMask;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	508 bool control = (modifiers & OS.NSControlKeyMask) is OS.NSControlKeyMask;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	509 if (control && option) return DND.DROP_DEFAULT;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	510 if (control) return DND.DROP_LINK;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	511 if (option) return DND.DROP_COPY;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	512 return DND.DROP_DEFAULT;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	513 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	514
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	515 /**
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	516 * Returns a list of the data types that can be transferred to this DropTarget.
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	517 *
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	518 * @return a list of the data types that can be transferred to this DropTarget
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	519 */
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	520 public Transfer[] getTransfer() {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	521 return transferAgents;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	522 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	523
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	524 void onDispose () {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	525 if (control is null)
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	526 return;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	527 if (controlListener !is null)
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	528 control.removeListener(DWT.Dispose, controlListener);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	529 controlListener = null;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	530 control.setData(DND.DROP_TARGET_KEY, null);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	531 transferAgents = null;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	532
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	533 // Unregister the control as a drop target.
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	534 control.view.unregisterDraggedTypes();
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	535 control = null;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	536 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	537
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	538 int opToOsOp(int operation) {
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	539 NSDragOperation osOperation = 0;
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	540 if ((operation & DND.DROP_COPY) !is 0){
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	541 osOperation \|= OS.NSDragOperationCopy;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	542 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	543 if ((operation & DND.DROP_LINK) !is 0) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	544 osOperation \|= OS.NSDragOperationLink;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	545 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	546 if ((operation & DND.DROP_MOVE) !is 0) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	547 osOperation \|= OS.NSDragOperationMove;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	548 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	549 if ((operation & DND.DROP_TARGET_MOVE) !is 0) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	550 osOperation \|= OS.NSDragOperationDelete;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	551 }
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	552 return cast(int) osOperation;
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	553 }
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	554
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	555 int osOpToOp(NSDragOperation osOperation){
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	556 int operation = 0;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	557 if ((osOperation & OS.NSDragOperationCopy) !is 0){
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	558 operation \|= DND.DROP_COPY;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	559 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	560 if ((osOperation & OS.NSDragOperationLink) !is 0) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	561 operation \|= DND.DROP_LINK;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	562 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	563 if ((osOperation & OS.NSDragOperationDelete) !is 0) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	564 operation \|= DND.DROP_TARGET_MOVE;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	565 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	566 if ((osOperation & OS.NSDragOperationMove) !is 0) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	567 operation \|= DND.DROP_MOVE;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	568 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	569 if (osOperation is OS.NSDragOperationEvery) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	570 operation = DND.DROP_COPY \| DND.DROP_MOVE \| DND.DROP_LINK;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	571 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	572 return operation;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	573 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	574
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	575 bool performDragOperation(NSObject sender) {
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	576 DNDEvent event = new DNDEvent();
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	577 event.widget = this;
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	578 event.time = cast(int)System.currentTimeMillis();
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	579
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	580 if (dropEffect !is null) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	581 NSPoint mouseLocation = sender.draggingLocation();
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	582 NSPoint globalLoc = sender.draggingDestinationWindow().convertBaseToScreen(mouseLocation);
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	583 event.item = dropEffect.getItem(cast(int)globalLoc.x, cast(int)globalLoc.y);
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	584 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	585
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	586 event.detail = DND.DROP_NONE;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	587 notifyListeners(DND.DragLeave, event);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	588
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	589 event = new DNDEvent();
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	590 if (!setEventData(sender, event)) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	591 return false;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	592 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	593
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	594 keyOperation = -1;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	595 int allowedOperations = event.operations;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	596 TransferData[] allowedDataTypes = new TransferData[event.dataTypes.length];
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	597 System.arraycopy(event.dataTypes, 0, allowedDataTypes, 0, event.dataTypes.length);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	598 event.dataType = selectedDataType;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	599 event.detail = selectedOperation;
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	600 notifyListeners(DND.DropAccept, event);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	601
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	602 selectedDataType = null;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	603 if (event.dataType !is null) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	604 for (int i = 0; i < allowedDataTypes.length; i++) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	605 if (allowedDataTypes[i].type is event.dataType.type) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	606 selectedDataType = allowedDataTypes[i];
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	607 break;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	608 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	609 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	610 }
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	611
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	612 selectedOperation = DND.DROP_NONE;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	613 if (selectedDataType !is null && (event.detail & allowedOperations) !is 0) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	614 selectedOperation = event.detail;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	615 }
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	616
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	617 if (selectedOperation is DND.DROP_NONE) {
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	618 return false;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	619 }
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	620
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	621 // ask drag source for dropped data
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	622 NSPasteboard pasteboard = sender.draggingPasteboard();
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	623 NSObject data = null;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	624 NSMutableArray types = NSMutableArray.arrayWithCapacity(10);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	625
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	626 for (int i = 0; i < transferAgents.length; i++){
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	627 Transfer transfer = transferAgents[i];
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	628 String[] typeNames = transfer.getTypeNames();
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	629 int[] typeIds = transfer.getTypeIds();
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	630
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	631 for (int j = 0; j < typeNames.length; j++) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	632 if (selectedDataType.type is typeIds[j]) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	633 types.addObject(NSString.stringWith(typeNames[j]));
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	634 break;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	635 }
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	636 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	637 }
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	638
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	639 NSString type = pasteboard.availableTypeFromArray(types);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	640 TransferData tdata = new TransferData();
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	641
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	642 if (type !is null) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	643 tdata.type = Transfer.registerType(type.getString());
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	644 if (type.isEqual(OS.NSStringPboardType) \|\|
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	645 type.isEqual(OS.NSHTMLPboardType) \|\|
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	646 type.isEqual(OS.NSRTFPboardType)) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	647 tdata.data = pasteboard.stringForType(type);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	648 } else if (type.isEqual(OS.NSURLPboardType)) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	649 tdata.data = NSURL.URLFromPasteboard(pasteboard);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	650 } else if (type.isEqual(OS.NSFilenamesPboardType)) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	651 tdata.data = new NSArray(pasteboard.propertyListForType(type).id);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	652 } else {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	653 tdata.data = pasteboard.dataForType(type);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	654 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	655 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	656
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	657 if (tdata.data !is null) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	658 data = tdata.data;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	659 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	660
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	661 // Get Data in a Java format
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	662 Object object = null;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	663 for (int i = 0; i < transferAgents.length; i++) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	664 Transfer transfer = transferAgents[i];
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	665 if (transfer !is null && transfer.isSupportedType(selectedDataType)) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	666 selectedDataType.data = data;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	667 object = transfer.nativeToJava(selectedDataType);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	668 break;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	669 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	670 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	671
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	672 if (object is null) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	673 selectedOperation = DND.DROP_NONE;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	674 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	675
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	676 event.dataType = selectedDataType;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	677 event.detail = selectedOperation;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	678 event.data = object;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	679 notifyListeners(DND.Drop, event);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	680 selectedOperation = DND.DROP_NONE;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	681 if ((allowedOperations & event.detail) is event.detail) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	682 selectedOperation = event.detail;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	683 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	684 //notify source of action taken
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	685 return (selectedOperation !is DND.DROP_NONE);
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	686 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	687
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	688 /**
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	689 * Removes the listener from the collection of listeners who will
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	690 * be notified when a drag and drop operation is in progress.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	691 *
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	692 * @param listener the listener which should no longer be notified
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	693 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	694 * @exception IllegalArgumentException <ul>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	695 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	696 * </ul>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	697 * @exception DWTException <ul>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	698 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	699 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	700 * </ul>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	701 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	702 * @see DropTargetListener
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	703 * @see #addDropListener
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	704 * @see #getDropListeners
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	705 */
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	706 public void removeDropListener(DropTargetListener listener) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	707 if (listener is null) DND.error (DWT.ERROR_NULL_ARGUMENT);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	708 removeListener (DND.DragEnter, listener);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	709 removeListener (DND.DragLeave, listener);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	710 removeListener (DND.DragOver, listener);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	711 removeListener (DND.DragOperationChanged, listener);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	712 removeListener (DND.Drop, listener);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	713 removeListener (DND.DropAccept, listener);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	714 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	715
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	716 /**
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	717 * Specifies the drop effect for this DropTarget. This drop effect will be
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	718 * used during a drag and drop to display the drag under effect on the
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	719 * target widget.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	720 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	721 * @param effect the drop effect that is registered for this DropTarget
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	722 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	723 * @since 3.3
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	724 */
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	725 public void setDropTargetEffect(DropTargetEffect effect) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	726 dropEffect = effect;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	727 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	728
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	729 bool setEventData(NSObject draggingState, DNDEvent event) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	730 if (draggingState is null) return false;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	731
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	732 // get allowed operations
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	733 int style = getStyle();
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	734 NSDragOperation allowedActions = draggingState.draggingSourceOperationMask();
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	735 int operations = osOpToOp(allowedActions) & style;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	736 if (operations is DND.DROP_NONE) return false;
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	737
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	738 // get current operation
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	739 int operation = getOperationFromKeyState();
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	740 keyOperation = operation;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	741 if (operation is DND.DROP_DEFAULT) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	742 if ((style & DND.DROP_DEFAULT) is 0) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	743 operation = (operations & DND.DROP_MOVE) !is 0 ? DND.DROP_MOVE : DND.DROP_NONE;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	744 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	745 } else {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	746 if ((operation & operations) is 0) operation = DND.DROP_NONE;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	747 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	748
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	749
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	750 // get allowed transfer types
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	751 NSPasteboard dragPBoard = draggingState.draggingPasteboard();
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	752 NSArray draggedTypes = dragPBoard.types();
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	753 if (draggedTypes is null) return false;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	754
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	755 NSUInteger draggedTypeCount = draggedTypes.count();
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	756
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	757 TransferData[] dataTypes = new TransferData[draggedTypeCount];
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	758 int index = -1;
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	759 for (int i = 0; i < draggedTypeCount; i++) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	760 id draggedType = draggedTypes.objectAtIndex(i);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	761 NSString nativeDataType = new NSString(draggedType);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	762 TransferData data = new TransferData();
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	763 data.type = Transfer.registerType(nativeDataType.getString());
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	764
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	765 for (int j = 0; j < transferAgents.length; j++) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	766 Transfer transfer = transferAgents[j];
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	767 if (transfer !is null && transfer.isSupportedType(data)) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	768 dataTypes[++index] = data;
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	769 break;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	770 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	771 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	772 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	773 if (index is -1) return false;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	774
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	775 if (index < dataTypes.length - 1) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	776 TransferData[] temp = new TransferData[index + 1];
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	777 System.arraycopy(dataTypes, 0, temp, 0, index + 1);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	778 dataTypes = temp;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	779 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	780
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	781 // Convert from window-relative to global coordinates, and flip it.
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	782 NSPoint mouse = draggingState.draggingLocation();
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	783 NSPoint globalMouse = draggingState.draggingDestinationWindow().convertBaseToScreen(mouse);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	784 NSArray screens = NSScreen.screens();
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	785 NSRect screenRect = (new NSScreen(screens.objectAtIndex(0))).frame();
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	786 globalMouse.y = screenRect.height - globalMouse.y;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	787
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	788 event.widget = this;
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	789 event.x = cast(int)globalMouse.x;
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	790 event.y = cast(int)globalMouse.y;
d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	791 event.time = cast(int)System.currentTimeMillis();
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	792 event.feedback = DND.FEEDBACK_SELECT;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	793 event.dataTypes = dataTypes;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	794 event.dataType = dataTypes[0];
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	795 event.operations = operations;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	796 event.detail = operation;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	797 if (dropEffect !is null) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	798 event.item = dropEffect.getItem(event.x, event.y);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	799 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	800
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	801 return true;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	802 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	803
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	804 /**
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	805 * Specifies the data types that can be transferred to this DropTarget. If data is
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	806 * being dragged that does not match one of these types, the drop target will be notified of
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	807 * the drag and drop operation but the currentDataType will be null and the operation
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	808 * will be DND.NONE.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	809 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	810 * @param transferAgents a list of Transfer objects which define the types of data that can be
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	811 * dropped on this target
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	812 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	813 * @exception IllegalArgumentException <ul>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	814 * <li>ERROR_NULL_ARGUMENT - if transferAgents is null</li>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	815 * </ul>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	816 */
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	817 public void setTransfer(Transfer[] transferAgents){
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	818 if (transferAgents is null) DND.error(DWT.ERROR_NULL_ARGUMENT);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	819 this.transferAgents = transferAgents;
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	820
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	821
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	822 // Register the types as valid drop types in Cocoa.
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	823 // Accumulate all of the transfer types into a list.
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	824 String[] typeStrings;
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	825
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	826 for (int i = 0; i < this.transferAgents.length; i++) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	827 String[] types = transferAgents[i].getTypeNames();
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	828
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	829 for (int j = 0; j < types.length; j++) {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	830 typeStrings.add(types[j]);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	831 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	832 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	833
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	834 // Convert to an NSArray of NSStrings so we can register with the Control.
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	835 int typeStringCount = typeStrings.size();
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	836 NSMutableArray nsTypeStrings = NSMutableArray.arrayWithCapacity(typeStringCount);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	837
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	838 for (int i = 0; i < typeStringCount; i++) {
99 d32621bf0f90 Ported dwt.dnd.DropTarget Jacob Carlborg <doob@me.com> parents: 45 diff changeset	839 nsTypeStrings.addObject(NSString.stringWith(cast(String)typeStrings.get(i)));
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	840 }
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	841
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	842 control.view.registerForDraggedTypes(nsTypeStrings);
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	843
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	844 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	845
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	846 // By returning true we get draggingUpdated messages even when the mouse isn't moving.
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	847 bool wantsPeriodicDraggingUpdates() {
d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 8 diff changeset	848 return true;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	849 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	850
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	851 }

Mercurial > projects > dwt-mac

annotate dwt/dnd/DropTarget.d @ 99:d32621bf0f90