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comparison dwt/browser/FilePicker.d @ 0:380af2bdd8e5

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author Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
date Sat, 09 Aug 2008 17:00:02 +0200
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1 /*******************************************************************************
2 * Copyright (c) 2003, 2007 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 module dwt.browser.FilePicker;
12
13 import dwt.dwthelper.utils;
14
15 import dwt.DWT;
16 import dwt.internal.C;
17 import dwt.internal.mozilla.XPCOM;
18 import dwt.internal.mozilla.XPCOMObject;
19 import dwt.internal.mozilla.nsEmbedString;
20 import dwt.internal.mozilla.nsID;
21 import dwt.internal.mozilla.nsIFilePicker;
22 import dwt.internal.mozilla.nsIFilePicker_1_8;
23 import dwt.internal.mozilla.nsILocalFile;
24 import dwt.internal.mozilla.nsISupports;
25 import dwt.widgets.DirectoryDialog;
26 import dwt.widgets.Display;
27 import dwt.widgets.FileDialog;
28 import dwt.widgets.Shell;
29
30 class FilePicker {
31 XPCOMObject supports;
32 XPCOMObject filePicker;
33
34 int refCount = 0;
35 short mode;
36 int /*long*/ parentHandle;
37 String[] files, masks;
38 String defaultFilename, directory, title;
39
40 static final String SEPARATOR = System.getProperty ("file.separator"); //$NON-NLS-1$
41
42 FilePicker () {
43 createCOMInterfaces ();
44 }
45
46 int AddRef () {
47 refCount++;
48 return refCount;
49 }
50
51 void createCOMInterfaces () {
52 /* Create each of the interfaces that this object implements */
53 supports = new XPCOMObject (new int[] {2, 0, 0}) {
54 public int /*long*/ method0 (int /*long*/[] args) {return QueryInterface (args[0], args[1]);}
55 public int /*long*/ method1 (int /*long*/[] args) {return AddRef ();}
56 public int /*long*/ method2 (int /*long*/[] args) {return Release ();}
57 };
58
59 filePicker = new XPCOMObject (new int[] {2, 0, 0, 3, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}) {
60 public int /*long*/ method0 (int /*long*/[] args) {return QueryInterface (args[0], args[1]);}
61 public int /*long*/ method1 (int /*long*/[] args) {return AddRef ();}
62 public int /*long*/ method2 (int /*long*/[] args) {return Release ();}
63 public int /*long*/ method3 (int /*long*/[] args) {return Init (args[0], args[1], (short)args[2]);}
64 public int /*long*/ method4 (int /*long*/[] args) {return AppendFilters ((int)/*64*/args[0]);}
65 public int /*long*/ method5 (int /*long*/[] args) {return AppendFilter (args[0], args[1]);}
66 public int /*long*/ method6 (int /*long*/[] args) {return GetDefaultString (args[0]);}
67 public int /*long*/ method7 (int /*long*/[] args) {return SetDefaultString (args[0]);}
68 public int /*long*/ method8 (int /*long*/[] args) {return GetDefaultExtension (args[0]);}
69 public int /*long*/ method9 (int /*long*/[] args) {return SetDefaultExtension (args[0]);}
70 public int /*long*/ method10 (int /*long*/[] args) {return GetFilterIndex (args[0]);}
71 public int /*long*/ method11 (int /*long*/[] args) {return SetFilterIndex ((int)/*64*/args[0]);}
72 public int /*long*/ method12 (int /*long*/[] args) {return GetDisplayDirectory (args[0]);}
73 public int /*long*/ method13 (int /*long*/[] args) {return SetDisplayDirectory (args[0]);}
74 public int /*long*/ method14 (int /*long*/[] args) {return GetFile (args[0]);}
75 public int /*long*/ method15 (int /*long*/[] args) {return GetFileURL (args[0]);}
76 public int /*long*/ method16 (int /*long*/[] args) {return GetFiles (args[0]);}
77 public int /*long*/ method17 (int /*long*/[] args) {return Show (args[0]);}
78 };
79 }
80
81 void disposeCOMInterfaces () {
82 if (supports !is null) {
83 supports.dispose ();
84 supports = null;
85 }
86 if (filePicker !is null) {
87 filePicker.dispose ();
88 filePicker = null;
89 }
90 }
91
92 int /*long*/ getAddress () {
93 return filePicker.getAddress ();
94 }
95
96 int QueryInterface (int /*long*/ riid, int /*long*/ ppvObject) {
97 if (riid is 0 || ppvObject is 0) return XPCOM.NS_ERROR_NO_INTERFACE;
98 nsID guid = new nsID ();
99 XPCOM.memmove (guid, riid, nsID.sizeof);
100
101 if (guid.Equals (nsISupports.NS_ISUPPORTS_IID)) {
102 XPCOM.memmove (ppvObject, new int /*long*/[] {supports.getAddress ()}, C.PTR_SIZEOF);
103 AddRef ();
104 return XPCOM.NS_OK;
105 }
106 if (guid.Equals (nsIFilePicker.NS_IFILEPICKER_IID)) {
107 XPCOM.memmove(ppvObject, new int /*long*/[] {filePicker.getAddress ()}, C.PTR_SIZEOF);
108 AddRef ();
109 return XPCOM.NS_OK;
110 }
111 if (guid.Equals (nsIFilePicker_1_8.NS_IFILEPICKER_IID)) {
112 XPCOM.memmove(ppvObject, new int /*long*/[] {filePicker.getAddress ()}, C.PTR_SIZEOF);
113 AddRef ();
114 return XPCOM.NS_OK;
115 }
116
117 XPCOM.memmove (ppvObject, new int /*long*/[] {0}, C.PTR_SIZEOF);
118 return XPCOM.NS_ERROR_NO_INTERFACE;
119 }
120
121 int Release () {
122 refCount--;
123 if (refCount is 0) disposeCOMInterfaces ();
124 return refCount;
125 }
126
127 /*
128 * As of Mozilla 1.8 some of nsIFilePicker's string arguments changed type. This method
129 * answers a java string based on the type of string that is appropriate for the Mozilla
130 * version being used.
131 */
132 String parseAString (int /*long*/ string) {
133 return null;
134 }
135
136 /* nsIFilePicker */
137
138 int Init (int /*long*/ parent, int /*long*/ title, short mode) {
139 parentHandle = parent;
140 this.mode = mode;
141 this.title = parseAString (title);
142 return XPCOM.NS_OK;
143 }
144
145 int Show (int /*long*/ _retval) {
146 if (mode is nsIFilePicker.modeGetFolder) {
147 /* picking a directory */
148 int result = showDirectoryPicker ();
149 XPCOM.memmove (_retval, new short[] {(short)result}, 2); /* PRInt16 */
150 return XPCOM.NS_OK;
151 }
152
153 /* picking a file */
154 int style = mode is nsIFilePicker.modeSave ? DWT.SAVE : DWT.OPEN;
155 if (mode is nsIFilePicker.modeOpenMultiple) style |= DWT.MULTI;
156 Display display = Display.getCurrent ();
157 Shell parent = null; // TODO compute parent
158 if (parent is null) {
159 parent = new Shell (display);
160 }
161 FileDialog dialog = new FileDialog (parent, style);
162 if (title !is null) dialog.setText (title);
163 if (directory !is null) dialog.setFilterPath (directory);
164 if (masks !is null) dialog.setFilterExtensions (masks);
165 if (defaultFilename !is null) dialog.setFileName (defaultFilename);
166 String filename = dialog.open ();
167 files = dialog.getFileNames ();
168 directory = dialog.getFilterPath ();
169 title = defaultFilename = null;
170 masks = null;
171 int result = filename is null ? nsIFilePicker.returnCancel : nsIFilePicker.returnOK;
172 XPCOM.memmove (_retval, new short[] {(short)result}, 2); /* PRInt16 */
173 return XPCOM.NS_OK;
174 }
175
176 int showDirectoryPicker () {
177 Display display = Display.getCurrent ();
178 Shell parent = null; // TODO compute parent
179 if (parent is null) {
180 parent = new Shell (display);
181 }
182 DirectoryDialog dialog = new DirectoryDialog (parent, DWT.NONE);
183 if (title !is null) dialog.setText (title);
184 if (directory !is null) dialog.setFilterPath (directory);
185 directory = dialog.open ();
186 title = defaultFilename = null;
187 files = masks = null;
188 return directory is null ? nsIFilePicker.returnCancel : nsIFilePicker.returnOK;
189 }
190
191 int GetFiles (int /*long*/ aFiles) {
192 return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
193 }
194
195 int GetFileURL (int /*long*/ aFileURL) {
196 return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
197 }
198
199 int GetFile (int /*long*/ aFile) {
200 String filename = ""; //$NON-NLS-1$
201 if (directory !is null) filename += directory + SEPARATOR;
202 if (files !is null && files.length > 0) filename += files[0];
203 nsEmbedString path = new nsEmbedString (filename);
204 int /*long*/[] file = new int /*long*/[1];
205 int rc = XPCOM.NS_NewLocalFile (path.getAddress (), 1, file);
206 path.dispose ();
207 if (rc !is XPCOM.NS_OK) Mozilla.error (rc);
208 if (file[0] is 0) Mozilla.error (XPCOM.NS_ERROR_NULL_POINTER);
209 XPCOM.memmove (aFile, file, C.PTR_SIZEOF);
210 return XPCOM.NS_OK;
211 }
212
213 int SetDisplayDirectory (int /*long*/ aDisplayDirectory) {
214 if (aDisplayDirectory is 0) return XPCOM.NS_OK;
215 nsILocalFile file = new nsILocalFile (aDisplayDirectory);
216 int /*long*/ pathname = XPCOM.nsEmbedCString_new ();
217 file.GetNativePath (pathname);
218 int length = XPCOM.nsEmbedCString_Length (pathname);
219 int /*long*/ buffer = XPCOM.nsEmbedCString_get (pathname);
220 byte[] bytes = new byte[length];
221 XPCOM.memmove (bytes, buffer, length);
222 XPCOM.nsEmbedCString_delete (pathname);
223 char[] chars = MozillaDelegate.mbcsToWcs (null, bytes);
224 directory = new String (chars);
225 return XPCOM.NS_OK;
226 }
227
228 int GetDisplayDirectory (int /*long*/ aDisplayDirectory) {
229 String directoryName = directory !is null ? directory : ""; //$NON-NLS-1$
230 nsEmbedString path = new nsEmbedString (directoryName);
231 int /*long*/[] file = new int /*long*/[1];
232 int rc = XPCOM.NS_NewLocalFile (path.getAddress (), 1, file);
233 path.dispose ();
234 if (rc !is XPCOM.NS_OK) Mozilla.error (rc);
235 if (file[0] is 0) Mozilla.error (XPCOM.NS_ERROR_NULL_POINTER);
236 XPCOM.memmove (aDisplayDirectory, file, C.PTR_SIZEOF);
237 return XPCOM.NS_OK;
238 }
239
240 int SetFilterIndex (int aFilterIndex) {
241 return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
242 }
243
244 int GetFilterIndex (int /*long*/ aFilterIndex) {
245 return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
246 }
247
248 int SetDefaultExtension (int /*long*/ aDefaultExtension) {
249 /* note that the type of argument 1 changed as of Mozilla 1.8 */
250 return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
251 }
252
253 int GetDefaultExtension (int /*long*/ aDefaultExtension) {
254 /* note that the type of argument 1 changed as of Mozilla 1.8 */
255 return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
256 }
257
258 int SetDefaultString (int /*long*/ aDefaultString) {
259 defaultFilename = parseAString (aDefaultString);
260 return XPCOM.NS_OK;
261 }
262
263 int GetDefaultString (int /*long*/ aDefaultString) {
264 /* note that the type of argument 1 changed as of Mozilla 1.8 */
265 return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
266 }
267
268 int AppendFilter (int /*long*/ title, int /*long*/ filter) {
269 /* note that the type of arguments 1 and 2 changed as of Mozilla 1.8 */
270 return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
271 }
272
273 int AppendFilters (int filterMask) {
274 String[] addFilters = null;
275 switch (filterMask) {
276 case nsIFilePicker.filterAll:
277 case nsIFilePicker.filterApps:
278 masks = null; /* this is equivalent to no filter */
279 break;
280 case nsIFilePicker.filterHTML:
281 addFilters = new String[] {"*.htm;*.html"}; //$NON-NLS-1$
282 break;
283 case nsIFilePicker.filterImages:
284 addFilters = new String[] {"*.gif;*.jpeg;*.jpg;*.png"}; //$NON-NLS-1$
285 break;
286 case nsIFilePicker.filterText:
287 addFilters = new String[] {"*.txt"}; //$NON-NLS-1$
288 break;
289 case nsIFilePicker.filterXML:
290 addFilters = new String[] {"*.xml"}; //$NON-NLS-1$
291 break;
292 case nsIFilePicker.filterXUL:
293 addFilters = new String[] {"*.xul"}; //$NON-NLS-1$
294 break;
295 }
296 if (masks is null) {
297 masks = addFilters;
298 } else {
299 if (addFilters !is null) {
300 String[] newFilters = new String[masks.length + addFilters.length];
301 System.arraycopy (masks, 0, newFilters, 0, masks.length);
302 System.arraycopy (addFilters, 0, newFilters, masks.length, addFilters.length);
303 masks = newFilters;
304 }
305 }
306 return XPCOM.NS_OK;
307 }
308 }