]>
Commit | Line | Data |
---|---|---|
1b2798f6 EK |
1 | /******************************************************************************* |
2 | * Copyright (c) 2000, 2011 IBM Corporation and others. | |
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 | |
7 | * | |
8 | * Contributors: | |
9 | * IBM Corporation - initial API and implementation | |
10 | *******************************************************************************/ | |
11 | package org.eclipse.jdt.internal.ui.wizards.buildpaths; | |
12 | ||
13 | import java.io.File; | |
14 | ||
15 | import org.eclipse.swt.graphics.Image; | |
16 | import org.eclipse.swt.widgets.Shell; | |
17 | ||
18 | import org.eclipse.core.runtime.IStatus; | |
19 | ||
20 | import org.eclipse.jface.viewers.ITreeContentProvider; | |
21 | import org.eclipse.jface.viewers.LabelProvider; | |
22 | import org.eclipse.jface.viewers.Viewer; | |
23 | import org.eclipse.jface.viewers.ViewerComparator; | |
24 | import org.eclipse.jface.viewers.ViewerFilter; | |
25 | ||
26 | import org.eclipse.ui.ISharedImages; | |
27 | import org.eclipse.ui.PlatformUI; | |
28 | import org.eclipse.ui.dialogs.ISelectionStatusValidator; | |
29 | ||
30 | import org.eclipse.jdt.internal.ui.JavaPlugin; | |
31 | import org.eclipse.jdt.internal.ui.JavaPluginImages; | |
32 | import org.eclipse.jdt.internal.ui.dialogs.StatusInfo; | |
33 | import org.eclipse.jdt.internal.ui.viewsupport.BasicElementLabels; | |
34 | import org.eclipse.jdt.internal.ui.viewsupport.FilteredElementTreeSelectionDialog; | |
35 | ||
36 | /** | |
37 | * Selection dialog to select a JAR on the file system. | |
38 | * Set input to a java.io.File that point to folder. | |
39 | */ | |
40 | public class JARFileSelectionDialog extends FilteredElementTreeSelectionDialog { | |
41 | ||
42 | /** | |
43 | * Constructor for JARFileSelectionDialog. | |
44 | * @param parent parent shell | |
45 | * @param multiSelect specifies if selecting multiple elements is allowed | |
46 | * @param acceptFolders specifies if folders can be selected as well | |
47 | */ | |
48 | public JARFileSelectionDialog(Shell parent, boolean multiSelect, boolean acceptFolders) { | |
49 | this(parent, multiSelect, acceptFolders, false); | |
50 | } | |
51 | ||
52 | /** | |
53 | * Constructor for JARFileSelectionDialog. | |
54 | * @param parent parent shell | |
55 | * @param multiSelect specifies if selecting multiple elements is allowed | |
56 | * @param acceptFolders specifies if folders can be selected as well | |
57 | * @param acceptAllArchives specifies if all archives (not just jar and zip) can be selected | |
58 | */ | |
59 | public JARFileSelectionDialog(Shell parent, boolean multiSelect, boolean acceptFolders, boolean acceptAllArchives) { | |
60 | super(parent, new FileLabelProvider(), new FileContentProvider(), false); | |
61 | setComparator(new FileViewerComparator()); | |
62 | if (!acceptAllArchives) { | |
63 | addFilter(new JARZipFileFilter(acceptFolders)); | |
64 | } else { | |
65 | setInitialFilter(ArchiveFileFilter.JARZIP_FILTER_STRING); | |
66 | } | |
67 | setValidator(new FileSelectionValidator(multiSelect, acceptFolders)); | |
68 | setHelpAvailable(false); | |
69 | } | |
70 | ||
71 | ||
72 | ||
73 | private static class FileLabelProvider extends LabelProvider { | |
74 | private final Image IMG_FOLDER= PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_OBJ_FOLDER); | |
75 | private final Image IMG_JAR= JavaPlugin.getDefault().getImageRegistry().get(JavaPluginImages.IMG_OBJS_EXTJAR); | |
76 | ||
77 | @Override | |
78 | public Image getImage(Object element) { | |
79 | if (element instanceof File) { | |
80 | File curr= (File) element; | |
81 | if (curr.isDirectory()) { | |
82 | return IMG_FOLDER; | |
83 | } else { | |
84 | return IMG_JAR; | |
85 | } | |
86 | } | |
87 | return null; | |
88 | } | |
89 | ||
90 | @Override | |
91 | public String getText(Object element) { | |
92 | if (element instanceof File) { | |
93 | return BasicElementLabels.getResourceName(((File) element).getName()); | |
94 | } | |
95 | return super.getText(element); | |
96 | } | |
97 | } | |
98 | ||
99 | private static class FileContentProvider implements ITreeContentProvider { | |
100 | ||
101 | private final Object[] EMPTY= new Object[0]; | |
102 | ||
103 | public Object[] getChildren(Object parentElement) { | |
104 | if (parentElement instanceof File) { | |
105 | File[] children= ((File) parentElement).listFiles(); | |
106 | if (children != null) { | |
107 | return children; | |
108 | } | |
109 | } | |
110 | return EMPTY; | |
111 | } | |
112 | ||
113 | public Object getParent(Object element) { | |
114 | if (element instanceof File) { | |
115 | return ((File) element).getParentFile(); | |
116 | } | |
117 | return null; | |
118 | } | |
119 | ||
120 | public boolean hasChildren(Object element) { | |
121 | return getChildren(element).length > 0; | |
122 | } | |
123 | ||
124 | public Object[] getElements(Object element) { | |
125 | return getChildren(element); | |
126 | } | |
127 | ||
128 | public void dispose() { | |
129 | } | |
130 | ||
131 | public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { | |
132 | } | |
133 | ||
134 | } | |
135 | ||
136 | private static class JARZipFileFilter extends ViewerFilter { | |
137 | private final boolean fAcceptFolders; | |
138 | ||
139 | public JARZipFileFilter(boolean acceptFolders) { | |
140 | fAcceptFolders= acceptFolders; | |
141 | } | |
142 | ||
143 | @Override | |
144 | public boolean select(Viewer viewer, Object parent, Object element) { | |
145 | if (element instanceof File) { | |
146 | File file= (File) element; | |
147 | if (file.isFile()) { | |
148 | return isArchive(file); | |
149 | } else if (fAcceptFolders) { | |
150 | return true; | |
151 | } else { | |
152 | File[] listFiles= file.listFiles(); | |
153 | if (listFiles != null) { | |
154 | for (int i= 0; i < listFiles.length; i++) { | |
155 | if (select(viewer, file, listFiles[i])) { | |
156 | return true; | |
157 | } | |
158 | } | |
159 | } | |
160 | } | |
161 | } | |
162 | return false; | |
163 | } | |
164 | ||
165 | private static boolean isArchive(File file) { | |
166 | String name= file.getName(); | |
167 | int detIndex= name.lastIndexOf('.'); | |
168 | return (detIndex != -1 && ArchiveFileFilter.isArchiveFileExtension(name.substring(detIndex + 1))); | |
169 | } | |
170 | } | |
171 | ||
172 | private static class FileViewerComparator extends ViewerComparator { | |
173 | @Override | |
174 | public int category(Object element) { | |
175 | if (element instanceof File) { | |
176 | if (((File) element).isFile()) { | |
177 | return 1; | |
178 | } | |
179 | } | |
180 | return 0; | |
181 | } | |
182 | } | |
183 | ||
184 | private static class FileSelectionValidator implements ISelectionStatusValidator { | |
185 | private boolean fMultiSelect; | |
186 | private boolean fAcceptFolders; | |
187 | ||
188 | public FileSelectionValidator(boolean multiSelect, boolean acceptFolders) { | |
189 | fMultiSelect= multiSelect; | |
190 | fAcceptFolders= acceptFolders; | |
191 | } | |
192 | ||
193 | public IStatus validate(Object[] selection) { | |
194 | int nSelected= selection.length; | |
195 | if (nSelected == 0 || (nSelected > 1 && !fMultiSelect)) { | |
196 | return new StatusInfo(IStatus.ERROR, ""); //$NON-NLS-1$ | |
197 | } | |
198 | for (int i= 0; i < selection.length; i++) { | |
199 | Object curr= selection[i]; | |
200 | if (curr instanceof File) { | |
201 | File file= (File) curr; | |
202 | if (!fAcceptFolders && !file.isFile()) { | |
203 | return new StatusInfo(IStatus.ERROR, ""); //$NON-NLS-1$ | |
204 | } | |
205 | } | |
206 | } | |
207 | return new StatusInfo(); | |
208 | } | |
209 | } | |
210 | ||
211 | ||
212 | } |