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annotate dwt/browser.old/FilePicker.d @ 288:4ee8c4237614

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author John Reimer<terminal.node@gmail.com>
date Tue, 05 Aug 2008 18:00:50 -0700
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1 /*******************************************************************************
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2 * Copyright (c) 2003, 2007 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * John Reimer <terminal.node@gmail.com>
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12 *******************************************************************************/
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13
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14 module dwt.browser.FilePicker;
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15
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16 import tango.io.model.IFile;
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17 import Utf = tango.text.convert.Utf;
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18
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19 import dwt.dwthelper.utils;
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20
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21 import dwt.DWT;
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22
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23 import XPCOM = dwt.internal.mozilla.nsXPCOM;
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24
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25 import dwt.browser.Mozilla;
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26 import dwt.browser.MozillaDelegate;
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27
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28 import dwt.internal.mozilla.nsEmbedString;
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29 import dwt.internal.mozilla.nsIDOMWindow;
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30 import dwt.internal.mozilla.nsID;
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31 import dwt.internal.mozilla.nsIFilePicker;
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32 import dwt.internal.mozilla.nsILocalFile;
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33 import dwt.internal.mozilla.nsISupports;
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34 import dwt.internal.mozilla.nsSimpleEnumerator;
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35 import dwt.internal.mozilla.nsStringAPI;
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36 import dwt.internal.mozilla.nsError;
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37
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38 import dwt.widgets.DirectoryDialog;
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39 import dwt.widgets.Display;
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40 import dwt.widgets.FileDialog;
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41 import dwt.widgets.Shell;
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42
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43
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44 class FilePicker : nsISupports, nsIFilePicker
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45 {
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46 /**************************************************************************
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47
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48 **************************************************************************/
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49
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50 private
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51 {
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52 int _refCount = 0;
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53 short _mode;
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54
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55 nsIDOMWindow _parent;
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56
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57 String[] _files;
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58 String _masks;
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59 String _defaultFilename,
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60 _directory,
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61 _title;
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62 }
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63 /**************************************************************************
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64
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65 **************************************************************************/
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66
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67 static final String SEPARATOR = FileConst.FileSeparatorChar;
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68
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69 /**************************************************************************
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70
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71 **************************************************************************/
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72
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73 this ()
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74 {
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75 }
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76
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77 /**************************************************************************
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78
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79 **************************************************************************/
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80
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81 nsrefcnt AddRef ()
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82 {
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83 _refCount++;
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84 return _refCount;
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85 }
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86
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87 /**************************************************************************
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88
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89 **************************************************************************/
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90
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91 nsresult QueryInterface ( inout nsID riid, void** ppvObject)
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92 {
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93 if (riid is null || ppvObject is null)
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94 return NS_ERROR_NO_INTERFACE;
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95
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96 if (riid == nsISupports.IID)
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97 {
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98 *ppvObject = cast(void*)cast(nsISupports) this;
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99 AddRef ();
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100 return NS_OK;
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101 }
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102
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103 if (riid == nsIFilePicker.IID))
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104 {
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105 *ppvObject = cast(void*)cast(nsIFilePicker) this;
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106 AddRef ();
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107 return NS_OK;
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108 }
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109
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110 if (riid == nsIFilePicker_1_8.IID)
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111 {
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112 *ppvObject = cast(void*)cast(nsIFilePicker_1_8) this;
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113 AddRef ();
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114 return NS_OK;
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115 }
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116
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117 *ppvObject = null;
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118 return NS_ERROR_NO_INTERFACE;
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119 }
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120
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121 /**************************************************************************
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122
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123 **************************************************************************/
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124
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125 nsrefcnt Release ()
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126 {
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127 _refCount--;
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128
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129 if (_refCount is 0)
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130 // No big deal here; just allow the GC to reap this object
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131 // once all references are expired. -JJR
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132 // delete this;
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133 return 0;
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134
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135 return _refCount;
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136 }
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137
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138 /**************************************************************************
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139
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140 **************************************************************************/
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141
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142 /* SWT Comment:
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143 *
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144 * As of Mozilla 1.8 some of nsIFilePicker's string arguments changed type. This method
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145 * answers a java string based on the type of string that is appropriate for the Mozilla
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146 * version being used.
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147 */
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148
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149 override String parseAString (nsEmbedString str)
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150 {
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151 return null;
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152 }
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153
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154 /**************************************************************************
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155
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156 **************************************************************************/
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157
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158 /* nsIFilePicker */
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159
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160 nsresult Init (nsIDOMWindow parent, nsAString* title, PRInt16 mode)
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161 {
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162 _parent = parent;
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163 _mode = mode;
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164 _title = parseAString (title);
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165 return XPCOM;
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166 }
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167
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168 /**************************************************************************
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169
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170 **************************************************************************/
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171
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172 nsresult Show (PRUint32* retval)
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173 {
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174 if (_mode is nsIFilePicker.modeGetFolder)
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175 {
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176 /* picking a directory */
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177 int result = this.showDirectoryPicker ();
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178 *retval = result;
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179 return NS_OK;
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180 }
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181
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182 /* picking a file */
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183 int style = _mode is nsIFilePicker.modeSave ? DWT.SAVE : DWT.OPEN;
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184
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185 if (_mode is nsIFilePicker.modeOpenMultiple)
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186 style |= DWT.MULTI;
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187
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188 Display display = Display.getCurrent ();
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189 Shell parent = null; // TODO compute parent
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190
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191 if (parent is null)
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192 {
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193 parent = new Shell (display);
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194 }
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195
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196 FileDialog dialog = new FileDialog (parent, style);
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197
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198 if (_title !is null)
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199 dialog.setText (_title);
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200
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201 if (_directory !is null)
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202 dialog.setFilterPath (_directory);
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203
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204 if (_masks !is null) {
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205 String[] str ~= _masks;
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206 dialog.setFilterExtensions ( str );
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207 }
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208
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209 if (_defaultFilename !is null)
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210 dialog.setFileName (_defaultFilename);
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211
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212 String filename = dialog.open ();
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213 files = dialog.getFileNames ();
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214 _directory = dialog.getFilterPath ();
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215 _title = _defaultFilename = null;
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216 _masks = null;
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217 int result = filename is null ? nsIFilePicker.returnCancel : nsIFilePicker.returnOK;
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218 *retval = result;
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219 return NS_OK;
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220 }
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221
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222 /**************************************************************************
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223
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224 **************************************************************************/
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225
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226 int showDirectoryPicker ()
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227 {
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228 Display display = Display.getCurrent ();
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229 Shell parent = null; // TODO compute parent
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230
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231 if (parent is null)
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232 {
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233 parent = new Shell (display);
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234 }
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235
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236 DirectoryDialog dialog = new DirectoryDialog (parent, DWT.NONE);
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237
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238 if (_title !is null)
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239 dialog.setText (_title);
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240 if (_directory !is null)
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241 dialog.setFilterPath (_directory);
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242 _directory = dialog.open ();
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243 _title = _defaultFilename = null;
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244 _files = _masks = null;
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245 return _directory is null ? nsIFilePicker.returnCancel : nsIFilePicker.returnOK;
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246 }
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247
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248 /**************************************************************************
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249
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250 **************************************************************************/
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251
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252 nsresult GetFiles ( nsISimpleEnumerator* aFiles)
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253 {
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254 return NS_ERROR_NOT_IMPLEMENTED;
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255 }
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256
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257 /**************************************************************************
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258
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259 **************************************************************************/
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260
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261 nsresult GetFileURL (nsIFileURL aFileURL)
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262 {
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263 return NS_ERROR_NOT_IMPLEMENTED;
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264 }
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265
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266 /**************************************************************************
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267
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268 **************************************************************************/
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269
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270 nsresult GetFile (nsILocalFile* aFile)
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271 {
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272 String filename = ""; //$NON-NLS-1$
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273
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274 if (_directory !is null)
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275 filename ~= _directory ~ SEPARATOR;
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276 if (_files !is null && _files.length > 0)
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277 filename ~= _files[0];
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278
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279 // Create a nsEmbedString which will be automatically disposed
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280 // at the end of scope.
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281 scope auto path = new nsEmbedString( filename );
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282
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283 nsresult rc = XPCOM.NS_NewLocalFile ( cast(nsAString*)path, 1, aFile);
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284
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285 if (rc !is NS_OK)
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286 Mozilla.error (rc);
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287 if (aFile is null)
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288 Mozilla.error (NS_ERROR_NULL_POINTER);
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289
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290 return NS_OK;
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291 }
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292
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293 /**************************************************************************
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294
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295 **************************************************************************/
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296
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297 nsresult SetDisplayDirectory (nsILocalFile aDisplayDirectory)
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298 {
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299 if (aDisplayDirectory is null)
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300 return NS_OK;
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301
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302 scope auto pathname = new nsEmbedCString;
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303 aDisplayDirectory.GetNativePath ( cast(nsACString*)pathname );
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304 // TODO: CHECK IF THIS DOES CORRECT STRING CONVERSION -JJR
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305 char[] buffer = pathname.toString();
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306 char[] chars = MozillaDelegate.mbcsToWcs (null, buffer);
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307 // "buffer" contains a dup'ed string so we can safely reuse
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308 // it's memory for the _directory member. -JJR
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309 _directory = buffer;
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310 return NS_OK;
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311 }
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312
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313 /**************************************************************************
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314
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315 **************************************************************************/
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316
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317 nsresult GetDisplayDirectory (nsILocalFile* aDisplayDirectory)
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318 {
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319 String directoryName = _directory !is null ? _directory : ""; //$NON-NLS-1$
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320 scope auto path = new nsEmbedString (directoryName);
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321 nsresult rc = XPCOM.NS_NewLocalFile ( cast(nsAString*)path, 1, aDisplayDirectory);
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322
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323 if (rc !is NS_OK)
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324 Mozilla.error (rc);
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325 if (aDisplayDirectory is null)
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326 Mozilla.error (NS_ERROR_NULL_POINTER);
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327 return NS_OK;
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328 }
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329
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330 /**************************************************************************
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331
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332 **************************************************************************/
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333
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334 nsresult SetFilterIndex (PRInt32 aFilterIndex)
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335 {
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336 return NS_ERROR_NOT_IMPLEMENTED;
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337 }
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338
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339 /**************************************************************************
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340
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341 **************************************************************************/
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342
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343 nresult GetFilterIndex (PRInt32* aFilterIndex)
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344 {
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345 return NS_ERROR_NOT_IMPLEMENTED;
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346 }
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347
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348 /**************************************************************************
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349
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350 **************************************************************************/
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351
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352 int SetDefaultExtension (nsAString* aDefaultExtension)
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353 {
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354 /* note that the type of argument 1 changed as of Mozilla 1.8 */
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355 return NS_ERROR_NOT_IMPLEMENTED;
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356 }
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357
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358 /**************************************************************************
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359
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360 **************************************************************************/
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361
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362 int GetDefaultExtension (nsAString* aDefaultExtension)
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363 {
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364 /* note that the type of argument 1 changed as of Mozilla 1.8 */
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365 return NS_ERROR_NOT_IMPLEMENTED;
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366 }
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367
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368 /**************************************************************************
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369
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370 **************************************************************************/
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371
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372 nresult SetDefaultString (nsAString* aDefaultString)
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373 {
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374 defaultFilename = parseAString (aDefaultString);
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375 return NS_OK;
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376 }
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377
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378 /**************************************************************************
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379
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380 **************************************************************************/
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381
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382 nresult GetDefaultString (nsAString* aDefaultString)
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383 {
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384 /* note that the type of argument 1 changed as of Mozilla 1.8 */
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385 return NS_ERROR_NOT_IMPLEMENTED;
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386 }
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387
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388 /**************************************************************************
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389
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390 **************************************************************************/
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391
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392 nresult AppendFilter (nsAString* title, nsAString* filter)
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393 {
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394 /* note that the type of arguments 1 and 2 changed as of Mozilla 1.8 */
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395 return NS_ERROR_NOT_IMPLEMENTED;
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396 }
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397
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398 /**************************************************************************
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399
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400 **************************************************************************/
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401
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402 nresult AppendFilters (PRInt32 filterMask)
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403 {
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404 String addFilters;
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405
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406 switch (filterMask)
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407 {
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408 case nsIFilePicker.filterAll:
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409 case nsIFilePicker.filterApps:
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410 _masks = null; /* this is equivalent to no filter */
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411 break;
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412 case nsIFilePicker.filterHTML:
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413 addFilters = "*.htm;*.html" ;
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414 break;
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415 case nsIFilePicker.filterImages:
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416 addFilters = "*.gif;*.jpeg;*.jpg;*.png";
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417 break;
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418 case nsIFilePicker.filterText:
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419 addFilters = "*.txt";
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420 break;
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421 case nsIFilePicker.filterXML:
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422 addFilters = "*.xml";
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423 break;
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424 case nsIFilePicker.filterXUL:
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425 addFilters = "*.xul";
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426 break;
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427 }
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428
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429 if (_masks is null)
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430 {
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431 _masks = addFilters;
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432 } else {
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433 if (addFilters !is null)
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434 _masks ~= addFilters;
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435 }
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436 return NS_OK;
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437 }
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438
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439 /******************************************************************************
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440
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441 FilePicker for Mozilla Version 1.8
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442
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443 ******************************************************************************/
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444
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445 class FilePicker_1_8 : FilePicker
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446 {
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447 String parseAString (nsEmbedString str)
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448 {
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449 if (str is null)
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450 return null;
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451 return Utf.toString( str.toString16() );
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452 }
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453 }