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annotate dwt/browser/HelperAppLauncherDialog.d @ 352:a3c5f744d03f

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Update Browser/Mozilla package to SWT 3.4.1 and bug fixes
author John Reimer <terminal.node@gmail.com>
date Tue, 04 Nov 2008 21:20:45 -0800
parents 9a4d7706df52
children
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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 module dwt.browser.HelperAppLauncherDialog;
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14
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15 import dwt.dwthelper.utils;
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16
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17 import Utf = tango.text.convert.Utf;
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18
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19 import dwt.DWT;
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20
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21 import XPCOM = dwt.internal.mozilla.XPCOM;
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22
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23 import dwt.internal.mozilla.Common;
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24 import dwt.internal.mozilla.nsEmbedString;
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25 import dwt.internal.mozilla.nsID;
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26 import dwt.internal.mozilla.nsIHelperAppLauncher;
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27 import dwt.internal.mozilla.nsIHelperAppLauncherDialog;
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28 import dwt.internal.mozilla.nsIHelperAppLauncher_1_8;
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29 import dwt.internal.mozilla.nsISupports;
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30 import dwt.internal.mozilla.nsILocalFile;
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31 import dwt.internal.mozilla.nsStringAPI;
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32
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33 import dwt.browser.Mozilla;
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34
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35 import dwt.widgets.FileDialog;
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36 import dwt.widgets.Shell;
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37
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38 /**
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39 * This class implements the HelperAppLauncherDialog interface for mozilla
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40 * versions 1.4 - 1.8.x. For mozilla versions >= 1.9 this interface is
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41 * implemented by class HelperAppLauncherDialog_1_9. HelperAppLauncherDialogFactory
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42 * determines at runtime which of these classes to instantiate.
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43 */
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44
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45 class HelperAppLauncherDialog : nsIHelperAppLauncherDialog {
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46 int refCount = 0;
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47
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48 this() {
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49 }
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50
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51 extern(System)
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52 nsrefcnt AddRef () {
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53 refCount++;
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54 return refCount;
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55 }
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56
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57 extern(System)
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58 nsresult QueryInterface (nsID* riid, void** ppvObject) {
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59 if (riid is null || ppvObject is null) return XPCOM.NS_ERROR_NO_INTERFACE;
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60
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61 if (*riid == nsISupports.IID) {
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62 *ppvObject = cast(void*)cast(nsISupports)this;
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63 AddRef ();
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64 return XPCOM.NS_OK;
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65 }
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66 if (*riid == nsIHelperAppLauncherDialog.IID) {
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67 *ppvObject = cast(void*)cast(nsIHelperAppLauncherDialog)this;
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68 AddRef ();
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69 return XPCOM.NS_OK;
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70 }
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71
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72 *ppvObject = null;
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73 return XPCOM.NS_ERROR_NO_INTERFACE;
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74 }
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75
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76 extern(System)
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77 nsrefcnt Release () {
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78 refCount--;
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79 /*
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80 * Note. This instance lives as long as the download it is binded to.
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81 * Its reference count is expected to go down to 0 when the download
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82 * has completed or when it has been cancelled. E.g. when the user
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83 * cancels the File Dialog, cancels or closes the Download Dialog
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84 * and when the Download Dialog goes away after the download is completed.
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85 */
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86 if (refCount is 0) return 0;
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87 return refCount;
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88 }
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89
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90 /* nsIHelperAppLauncherDialog */
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91
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92 extern(System)
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93 nsresult Show(nsIHelperAppLauncher aLauncher, nsISupports aContext, PRUint32 aReason) {
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94 /*
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95 * The interface for nsIHelperAppLauncher changed as of mozilla 1.8. Query the received
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96 * nsIHelperAppLauncher for the new interface, and if it is not found then fall back to
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97 * the old interface.
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98 */
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99
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100 nsISupports supports = cast(nsISupports)aLauncher;
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101 nsIHelperAppLauncher_1_8 helperAppLauncher;
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102 nsresult rc = supports.QueryInterface (&nsIHelperAppLauncher_1_8.IID, cast(void**)&helperAppLauncher);
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103 if (rc is 0) {
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104 rc = helperAppLauncher.SaveToDisk (null, 0);
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105 helperAppLauncher.Release ();
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106 return rc;
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107 }
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108
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109 /* < 1.8 */
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110 return aLauncher.SaveToDisk (null, 0);
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111 // no Release for this? -JJR
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112 }
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113
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114 extern(System)
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115 nsresult PromptForSaveToFile (nsIHelperAppLauncher aLauncher, nsISupports aWindowContext, PRUnichar* aDefaultFile, PRUnichar* aSuggestedFileExtension, nsILocalFile* _retval) {
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116 bool hasLauncher = false;
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117
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118 /*
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119 * The interface for nsIHelperAppLauncherDialog changed as of mozilla 1.5 when an
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120 * extra argument was added to the PromptForSaveToFile method (this resulted in all
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121 * subsequent arguments shifting right). The workaround is to provide an XPCOMObject
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122 * that fits the newer API, and to use the first argument's type to infer whether
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123 * the old or new nsIHelperAppLauncherDialog interface is being used (and by extension
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124 * the ordering of the arguments). In mozilla >= 1.5 the first argument is an
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125 * nsIHelperAppLauncher.
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126 */
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127 /*
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128 * The interface for nsIHelperAppLauncher changed as of mozilla 1.8, so the first
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129 * argument must be queried for both the old and new nsIHelperAppLauncher interfaces.
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130 */
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131 bool using_1_8 = false;
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132 nsISupports support = cast(nsISupports)aLauncher;
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133
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134 if (aLauncher is null)
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135 assert(0);
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136
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137 nsIHelperAppLauncher_1_8 helperAppLauncher1;
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138 int rc = support.QueryInterface (&nsIHelperAppLauncher_1_8.IID, cast(void**)&helperAppLauncher1);
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139 if (rc is XPCOM.NS_OK) {
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140 using_1_8 = true;
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141 hasLauncher = true;
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142 helperAppLauncher1.Release ();
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143 } else {
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144 nsIHelperAppLauncher helperAppLauncher;
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145 rc = support.QueryInterface (&nsIHelperAppLauncher.IID, cast(void**)&helperAppLauncher);
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146 if (rc is XPCOM.NS_OK) {
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147 hasLauncher = true;
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148 helperAppLauncher.Release;
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149 }
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150 }
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151
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152 /+
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153 // In D port, no suppport for version >1.4 yet
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154 if (hasLauncher) { /* >= 1.5 */
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155 aDefaultFile = arg2;
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156 aSuggestedFileExtension = arg3;
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157 _retval = arg4;
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158 } else { /* 1.4 */
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159 // This call conversion probablywon't work for non-Java
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160 // and shouldn't get called; fix it later. -JJR
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161 aDefaultFile = arg1;
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162 aSuggestedFileExtension = arg2;
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163 _retval = arg3;
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164 }
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165 +/
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166 //int span = XPCOM.strlen_PRUnichar (aDefaultFile);
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167 // XPCOM.memmove (dest, aDefaultFile, length * 2);
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168 String defaultFile = Utf.toString(fromString16z(aDefaultFile));
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169
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170 //span = XPCOM.strlen_PRUnichar (aSuggestedFileExtension);
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171 //dest = new char[length];
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172 //XPCOM.memmove (dest, aSuggestedFileExtension, length * 2);
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173 String suggestedFileExtension = Utf.toString(fromString16z(aSuggestedFileExtension));
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174
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175 Shell shell = new Shell ();
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176 FileDialog fileDialog = new FileDialog (shell, DWT.SAVE);
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177 fileDialog.setFileName (defaultFile);
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178 String[] tmp;
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179 tmp ~= suggestedFileExtension;
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180 fileDialog.setFilterExtensions (tmp);
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181 String name = fileDialog.open ();
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182 shell.close ();
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183 if (name is null) {
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184 if (hasLauncher) {
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185 if (using_1_8) {
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186 rc = (cast(nsIHelperAppLauncher_1_8)aLauncher).Cancel (XPCOM.NS_BINDING_ABORTED);
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187 } else {
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188 rc = aLauncher.Cancel ();
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189 }
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190 if (rc !is XPCOM.NS_OK) Mozilla.error (rc,__FILE__,__LINE__);
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191 return XPCOM.NS_OK;
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192 }
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193 return XPCOM.NS_ERROR_FAILURE;
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194 }
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195 scope auto path = new nsEmbedString (name.toString16());
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196 nsILocalFile localFile;
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197 rc = XPCOM.NS_NewLocalFile (cast(nsAString*)path, 1, &localFile);
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198 //path.dispose ();
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199 if (rc !is XPCOM.NS_OK) Mozilla.error (rc,__FILE__,__LINE__);
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200 if (localFile is null) Mozilla.error (XPCOM.NS_ERROR_NULL_POINTER,__FILE__,__LINE__);
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201 /* Our own nsIDownload has been registered during the Browser initialization. It will be invoked by Mozilla. */
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202 *_retval = localFile;
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203 //XPCOM.memmove (_retval, result, C.PTR_SIZEOF);
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204 return XPCOM.NS_OK;
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205 }
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206 }