david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 1 | /******************************************************************************* |
nsandonato | dd81355 | 2010-07-06 14:12:36 +0000 | [diff] [blame] | 2 | * Copyright (c) 2001, 2010 IBM Corporation and others. |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 3 | * All rights reserved. This program and the accompanying materials |
| 4 | * are made available under the terms of the Eclipse Public License v1.0 |
| 5 | * which accompanies this distribution, and is available at |
| 6 | * http://www.eclipse.org/legal/epl-v10.html |
amywu | ecebb04 | 2007-04-10 20:07:35 +0000 | [diff] [blame] | 7 | * |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 8 | * Contributors: |
| 9 | * IBM Corporation - initial API and implementation |
| 10 | * Jens Lukowski/Innoopract - initial renaming/restructuring |
| 11 | * |
| 12 | *******************************************************************************/ |
david_williams | f3680f0 | 2005-04-13 22:43:54 +0000 | [diff] [blame] | 13 | package org.eclipse.wst.sse.ui.internal; |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 14 | |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 15 | import org.eclipse.jface.text.ITextViewer; |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 16 | import org.eclipse.swt.dnd.DND; |
| 17 | import org.eclipse.swt.dnd.DropTargetAdapter; |
| 18 | import org.eclipse.swt.dnd.DropTargetEvent; |
| 19 | import org.eclipse.swt.dnd.FileTransfer; |
| 20 | import org.eclipse.swt.dnd.Transfer; |
| 21 | import org.eclipse.swt.dnd.TransferData; |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 22 | import org.eclipse.swt.graphics.Point; |
nitind | 5089700 | 2005-06-03 20:33:54 +0000 | [diff] [blame] | 23 | import org.eclipse.ui.IEditorPart; |
nsandonato | dd81355 | 2010-07-06 14:12:36 +0000 | [diff] [blame] | 24 | import org.eclipse.wst.sse.ui.StructuredTextEditor; |
nitind | 503fc09 | 2005-11-01 20:17:10 +0000 | [diff] [blame] | 25 | import org.eclipse.wst.sse.ui.internal.TransferBuilder.TransferProxyForDelayLoading; |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 26 | |
| 27 | /** |
| 28 | * ExtendedEditorDropTargetAdapter |
| 29 | */ |
| 30 | public class ExtendedEditorDropTargetAdapter extends DropTargetAdapter { |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 31 | private String[] editorIds; |
nitind | 8245dde | 2008-02-20 19:00:17 +0000 | [diff] [blame] | 32 | private Point originalRange = null; |
nitind | 5089700 | 2005-06-03 20:33:54 +0000 | [diff] [blame] | 33 | private IEditorPart targetEditor = null; |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 34 | private ITextViewer textViewer = null; |
| 35 | |
| 36 | private Transfer[] transfers = null; |
| 37 | |
nitind | 503fc09 | 2005-11-01 20:17:10 +0000 | [diff] [blame] | 38 | private boolean useProxy; |
| 39 | |
| 40 | /** |
| 41 | * @deprecated use ExtendedEditorDropTargetAdapter(boolean useProxy) for |
| 42 | * the performance |
| 43 | */ |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 44 | public ExtendedEditorDropTargetAdapter() { |
nitind | 503fc09 | 2005-11-01 20:17:10 +0000 | [diff] [blame] | 45 | this(false); |
| 46 | } |
| 47 | |
| 48 | public ExtendedEditorDropTargetAdapter(boolean useProxy) { |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 49 | super(); |
nitind | 503fc09 | 2005-11-01 20:17:10 +0000 | [diff] [blame] | 50 | this.useProxy = useProxy; |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 51 | } |
| 52 | |
| 53 | protected boolean doDrop(Transfer transfer, DropTargetEvent event) { |
nitind | 503fc09 | 2005-11-01 20:17:10 +0000 | [diff] [blame] | 54 | TransferBuilder tb = new TransferBuilder(useProxy); |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 55 | |
| 56 | IDropAction[] as = null; |
| 57 | if (editorIds != null && editorIds.length > 0) |
nitind | 503fc09 | 2005-11-01 20:17:10 +0000 | [diff] [blame] | 58 | as = tb.getDropActions(editorIds, transfer); |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 59 | else |
nitind | 503fc09 | 2005-11-01 20:17:10 +0000 | [diff] [blame] | 60 | as = tb.getDropActions(getTargetEditor().getClass().getName(), transfer); |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 61 | |
| 62 | for (int i = 0; i < as.length; ++i) { |
| 63 | IDropAction da = as[i]; |
nitind | 503fc09 | 2005-11-01 20:17:10 +0000 | [diff] [blame] | 64 | Transfer actualTransfer; |
| 65 | if (transfer instanceof TransferProxyForDelayLoading) { |
| 66 | actualTransfer = ((TransferProxyForDelayLoading) transfer).getTransferClass(); |
| 67 | } |
| 68 | else { |
| 69 | actualTransfer = transfer; |
| 70 | } |
| 71 | if (actualTransfer instanceof FileTransfer) { |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 72 | if (event.data == null) { |
| 73 | Logger.log(Logger.ERROR, "No data in DropTargetEvent from " + event.widget); //$NON-NLS-1$ |
| 74 | return false; |
| 75 | } |
| 76 | String[] strs = (String[]) event.data; |
| 77 | boolean[] bs = new boolean[strs.length]; |
| 78 | int c = 0; |
| 79 | for (int j = 0; j < strs.length; ++j) { |
| 80 | bs[j] = false; |
| 81 | if (da.isSupportedData(strs[j])) { |
| 82 | event.data = new String[]{strs[j]}; |
| 83 | if (!da.run(event, targetEditor)) { |
| 84 | bs[j] = true; |
| 85 | c++; |
| 86 | } |
nitind | 88d6440 | 2006-07-10 16:51:38 +0000 | [diff] [blame] | 87 | } |
| 88 | else { |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 89 | bs[j] = true; |
| 90 | c++; |
| 91 | } |
| 92 | } |
| 93 | if (c == 0) { |
| 94 | return true; |
| 95 | } |
| 96 | |
| 97 | int k = 0; |
| 98 | String[] rests = new String[c]; |
| 99 | for (int j = 0; j < strs.length; ++j) { |
| 100 | if (bs[j]) |
| 101 | rests[k++] = strs[j]; |
| 102 | } |
| 103 | event.data = rests; |
nitind | 88d6440 | 2006-07-10 16:51:38 +0000 | [diff] [blame] | 104 | } |
| 105 | else if (da.isSupportedData(event.data)) { |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 106 | if (da.run(event, targetEditor)) { |
| 107 | return true; |
| 108 | } |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | return false; |
| 113 | } |
| 114 | |
| 115 | /** |
| 116 | */ |
| 117 | public void dragEnter(DropTargetEvent event) { |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 118 | TransferData data = null; |
| 119 | Transfer[] ts = getTransfers(); |
| 120 | for (int i = 0; i < ts.length; i++) { |
| 121 | for (int j = 0; j < event.dataTypes.length; j++) { |
| 122 | if (ts[i].isSupportedType(event.dataTypes[j])) { |
| 123 | data = event.dataTypes[j]; |
| 124 | break; |
| 125 | } |
| 126 | } |
| 127 | if (data != null) { |
| 128 | event.currentDataType = data; |
| 129 | break; |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | if (textViewer != null) { |
nitind | 8245dde | 2008-02-20 19:00:17 +0000 | [diff] [blame] | 134 | originalRange = textViewer.getSelectedRange(); |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 135 | } |
| 136 | } |
| 137 | |
| 138 | public void dragLeave(DropTargetEvent event) { |
| 139 | if (textViewer != null) { |
nitind | 8245dde | 2008-02-20 19:00:17 +0000 | [diff] [blame] | 140 | textViewer.setSelectedRange(originalRange.x, originalRange.y); |
| 141 | } |
| 142 | else { |
| 143 | originalRange = null; |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 144 | } |
| 145 | } |
| 146 | |
| 147 | /** |
nitind | 4da74b8 | 2006-12-12 07:15:15 +0000 | [diff] [blame] | 148 | * Scroll the visible area as needed |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 149 | */ |
| 150 | public void dragOver(DropTargetEvent event) { |
| 151 | event.operations &= ~DND.DROP_MOVE; |
| 152 | event.detail = DND.DROP_COPY; |
nitind | 8245dde | 2008-02-20 19:00:17 +0000 | [diff] [blame] | 153 | event.feedback |= DND.FEEDBACK_SCROLL; |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 154 | } |
| 155 | |
| 156 | /** |
| 157 | */ |
| 158 | public void drop(DropTargetEvent event) { |
| 159 | if (event.operations == DND.DROP_NONE) |
| 160 | return; |
| 161 | |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 162 | Transfer[] ts = getTransfers(); |
| 163 | for (int i = 0; i < ts.length; i++) { |
| 164 | if (ts[i].isSupportedType(event.currentDataType)) { |
| 165 | if (doDrop(ts[i], event)) { |
nsandonato | dd81355 | 2010-07-06 14:12:36 +0000 | [diff] [blame] | 166 | IEditorPart part = targetEditor; |
| 167 | if (targetEditor instanceof StructuredTextEditor){ |
| 168 | part = ((StructuredTextEditor) targetEditor).getEditorPart(); |
| 169 | } |
| 170 | targetEditor.getSite().getPage().activate(part); |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 171 | break; |
| 172 | } |
| 173 | } |
| 174 | } |
| 175 | } |
| 176 | |
nitind | 5089700 | 2005-06-03 20:33:54 +0000 | [diff] [blame] | 177 | public IEditorPart getTargetEditor() { |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 178 | return targetEditor; |
| 179 | } |
| 180 | |
| 181 | public ITextViewer getTextViewer() { |
| 182 | return textViewer; |
| 183 | } |
| 184 | |
| 185 | /** |
| 186 | * @return org.eclipse.swt.dnd.Transfer[] |
| 187 | */ |
| 188 | public Transfer[] getTransfers() { |
| 189 | if (transfers == null) { |
nitind | 503fc09 | 2005-11-01 20:17:10 +0000 | [diff] [blame] | 190 | TransferBuilder tb = new TransferBuilder(useProxy); |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 191 | if (editorIds == null || editorIds.length == 0) |
| 192 | transfers = tb.getDropTargetTransfers(getTargetEditor().getClass().getName()); |
| 193 | else |
| 194 | transfers = tb.getDropTargetTransfers(editorIds); |
| 195 | } |
| 196 | return transfers; |
| 197 | } |
| 198 | |
| 199 | /** |
| 200 | */ |
nitind | 5089700 | 2005-06-03 20:33:54 +0000 | [diff] [blame] | 201 | public void setTargetEditor(IEditorPart targetEditor) { |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 202 | this.targetEditor = targetEditor; |
| 203 | } |
| 204 | |
| 205 | public void setTargetIDs(String[] ids) { |
| 206 | editorIds = ids; |
| 207 | } |
| 208 | |
| 209 | public void setTextViewer(ITextViewer textViewer) { |
| 210 | this.textViewer = textViewer; |
| 211 | } |
| 212 | |
david_williams | cfdb2cd | 2004-11-11 08:37:49 +0000 | [diff] [blame] | 213 | } |