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1
4 package org.terracotta.dso.views;
5
6 import org.eclipse.core.resources.IProject;
7 import org.eclipse.jdt.core.IClassFile;
8 import org.eclipse.jdt.core.ICompilationUnit;
9 import org.eclipse.jdt.core.IField;
10 import org.eclipse.jdt.core.IJavaElement;
11 import org.eclipse.jdt.core.IMethod;
12 import org.eclipse.jdt.core.IType;
13 import org.eclipse.jdt.core.JavaModelException;
14 import org.eclipse.jdt.internal.ui.packageview.SelectionTransferDropAdapter;
15 import org.eclipse.jdt.internal.ui.util.SelectionUtil;
16 import org.eclipse.jface.dialogs.MessageDialog;
17 import org.eclipse.jface.viewers.ISelection;
18 import org.eclipse.jface.viewers.StructuredViewer;
19 import org.eclipse.swt.dnd.DND;
20 import org.eclipse.swt.dnd.DropTargetEvent;
21 import org.eclipse.swt.widgets.Display;
22 import org.eclipse.swt.widgets.Shell;
23 import org.terracotta.dso.TcPlugin;
24
25 class ConfigTransferDropAdapter extends SelectionTransferDropAdapter {
26 private static final int OPERATION = DND.DROP_LINK;
27 private ConfigViewPart fPart;
28
29 public ConfigTransferDropAdapter(ConfigViewPart viewPart, StructuredViewer viewer) {
30 super(viewer);
31 setFullWidthMatchesItem(false);
32 fPart = viewPart;
33 }
34
35 public void validateDrop(Object  target, DropTargetEvent event, int operation) {
36 event.detail= DND.DROP_NONE;
37 initializeSelection();
38
39 IJavaElement inputElement = getInputElement(getSelection());
40 if (inputElement != null) {
41 switch(inputElement.getElementType()) {
42 case IJavaElement.FIELD:
43 if(target instanceof RootsWrapper ||
44 target instanceof RootWrapper ||
45 target instanceof TransientFieldsWrapper ||
46 target instanceof TransientFieldWrapper) {
47 event.detail = OPERATION;
48 }
49 break;
50 case IJavaElement.PACKAGE_DECLARATION:
51 case IJavaElement.PACKAGE_FRAGMENT:
52 if(target instanceof AutolocksWrapper ||
53 target instanceof AutolockWrapper ||
54 target instanceof NamedLocksWrapper ||
55 target instanceof NamedLockWrapper ||
56 target instanceof IncludesWrapper ||
57 target instanceof IncludeWrapper ||
58 target instanceof ExcludesWrapper ||
59 target instanceof ExcludeWrapper) {
60 event.detail = OPERATION;
61 }
62 break;
63 case IJavaElement.METHOD:
64 if(target instanceof DistributedMethodsWrapper ||
65 target instanceof DistributedMethodWrapper ||
66 target instanceof AutolocksWrapper ||
67 target instanceof AutolockWrapper ||
68 target instanceof NamedLocksWrapper ||
69 target instanceof NamedLockWrapper) {
70 event.detail = OPERATION;
71 }
72 break;
73 case IJavaElement.CLASS_FILE:
74 case IJavaElement.COMPILATION_UNIT:
75 case IJavaElement.TYPE:
76 if(target instanceof AdditionalBootJarClassesWrapper ||
77 target instanceof AutolocksWrapper ||
78 target instanceof AutolockWrapper ||
79 target instanceof NamedLocksWrapper ||
80 target instanceof NamedLockWrapper ||
81 target instanceof IncludesWrapper ||
82 target instanceof IncludeWrapper ||
83 target instanceof ExcludesWrapper ||
84 target instanceof ExcludeWrapper) {
85 event.detail = OPERATION;
86 }
87 break;
88 }
89 }
90 }
91
92 public boolean isEnabled(DropTargetEvent event) {
93 return true;
94 }
95
96 public void drop(Object target, DropTargetEvent event) {
97 IJavaElement input = getInputElement(getSelection());
98 IProject project = input.getJavaProject().getProject();
99 TcPlugin plugin = TcPlugin.getDefault();
100
101 if(plugin.getConfiguration(project) == TcPlugin.BAD_CONFIG) {
102 Shell shell = Display.getDefault().getActiveShell();
103 String title = "Terracotta Plugin";
104 String msg = "The configuration source is not parsable and cannot be\n used until these errors are resolved.";
105
106 MessageDialog.openWarning(shell, title, msg);
107 try {
108 plugin.openConfigurationEditor(project);
109 } catch(Exception e) {
110 }
112 return;
113 }
114
115 switch(input.getElementType()) {
116 case IJavaElement.FIELD:
117 if(target instanceof RootsWrapper ||
118 target instanceof RootWrapper) {
119 fPart.addRoot((IField)input);
120 } else if(target instanceof TransientFieldsWrapper ||
121 target instanceof TransientFieldWrapper) {
122 fPart.addTransientField((IField)input);
123 }
124 break;
125 case IJavaElement.PACKAGE_DECLARATION:
126 case IJavaElement.PACKAGE_FRAGMENT:
127 if(target instanceof AutolocksWrapper ||
128 target instanceof AutolockWrapper) {
129 fPart.addAutolock(input);
130 } else if(target instanceof NamedLocksWrapper ||
131 target instanceof NamedLockWrapper) {
132 fPart.addNamedLock(input);
133 } else if(target instanceof IncludesWrapper ||
134 target instanceof IncludeWrapper) {
135 fPart.addInclude(input);
136 } else if(target instanceof ExcludesWrapper ||
137 target instanceof ExcludeWrapper) {
138 fPart.addExclude(input);
139 }
140 break;
141 case IJavaElement.METHOD:
142 if(target instanceof DistributedMethodsWrapper ||
143 target instanceof DistributedMethodWrapper) {
144 fPart.addDistributedMethod((IMethod)input);
145 } else if(target instanceof AutolocksWrapper ||
146 target instanceof AutolockWrapper) {
147 fPart.addAutolock(input);
148 } else if(target instanceof NamedLocksWrapper ||
149 target instanceof NamedLockWrapper) {
150 fPart.addNamedLock(input);
151 }
152 break;
153 case IJavaElement.CLASS_FILE:
154 try {
155 if(target instanceof AdditionalBootJarClassesWrapper) {
156 fPart.addAdditionalBootJarClass(((IClassFile)input).getType());
157 } else if(target instanceof AutolocksWrapper ||
158 target instanceof AutolockWrapper) {
159 fPart.addAutolock(input);
160 } else if(target instanceof NamedLocksWrapper ||
161 target instanceof NamedLockWrapper) {
162 fPart.addNamedLock(input);
163 } else if(target instanceof IncludesWrapper ||
164 target instanceof IncludeWrapper) {
165 fPart.addInclude(input);
166 } else if(target instanceof ExcludesWrapper ||
167 target instanceof ExcludeWrapper) {
168 fPart.addExclude(input);
169 }
170 } catch(JavaModelException jme) {}
171 break;
172 case IJavaElement.COMPILATION_UNIT:
173 if(target instanceof AdditionalBootJarClassesWrapper) {
174 fPart.addAdditionalBootJarClass(((ICompilationUnit)input).findPrimaryType());
175 } else if(target instanceof AutolocksWrapper ||
176 target instanceof AutolockWrapper) {
177 fPart.addAutolock(input);
178 } else if(target instanceof NamedLocksWrapper ||
179 target instanceof NamedLockWrapper) {
180 fPart.addNamedLock(input);
181 } else if(target instanceof IncludesWrapper ||
182 target instanceof IncludeWrapper) {
183 fPart.addInclude(input);
184 } else if(target instanceof ExcludesWrapper ||
185 target instanceof ExcludeWrapper) {
186 fPart.addExclude(input);
187 }
188 break;
189 case IJavaElement.TYPE:
190 if(target instanceof AdditionalBootJarClassesWrapper) {
191 fPart.addAdditionalBootJarClass((IType)input);
192 } else if(target instanceof AutolocksWrapper ||
193 target instanceof AutolockWrapper) {
194 fPart.addAutolock(input);
195 } else if(target instanceof NamedLocksWrapper ||
196 target instanceof NamedLockWrapper) {
197 fPart.addNamedLock(input);
198 } else if(target instanceof IncludesWrapper ||
199 target instanceof IncludeWrapper) {
200 fPart.addInclude(input);
201 } else if(target instanceof ExcludesWrapper ||
202 target instanceof ExcludeWrapper) {
203 fPart.addExclude(input);
204 }
205 break;
206 }
207 }
208
209 private static IJavaElement getInputElement(ISelection selection) {
210 Object single = SelectionUtil.getSingleElement(selection);
211 if (single == null)
212 return null;
213 return getCandidate(single);
214 }
215
216 public static IJavaElement getCandidate(Object input) {
217 if(!(input instanceof IJavaElement)) {
218 return null;
219 }
220 return (IJavaElement)input;
221 }
222 }
223
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