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annotate dwt/browser/FilePickerFactory.d @ 278:93409d9838c5

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Commit more browser/xpcom updates, including still uncoverted source.
author John Reimer<terminal.node@gmail.com>
date Thu, 31 Jul 2008 19:17:51 -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.FilePickerFactory;
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15
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16 import dwt.dwthelper.utils;
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17
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18 import dwt.internal.mozilla.nsID;
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19 import dwt.internal.mozilla.
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20 import dwt.internal.mozilla.nsIFactory;
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21 import dwt.internal.mozilla.nsISupports;
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22
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23 class FilePickerFactory : nsISupports, nsIFactory
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24 {
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25
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26 /**************************************************************************
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27
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28 **************************************************************************/
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29
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30 int _refCount = 0;
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31
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32 /**************************************************************************
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33
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34 **************************************************************************/
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35
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36 this ()
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37 {
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38 }
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39
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40 /**************************************************************************
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41
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42 **************************************************************************/
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43
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44 nsrefcnt AddRef ()
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45 {
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46 _refCount++;
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47 return _refCount;
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48 }
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49
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50 /**************************************************************************
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51
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52 **************************************************************************/
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53
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54 int QueryInterface ( ref nsID riid, void** ppvObject)
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55 {
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56 if (riid is null || ppvObject is null)
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57 return NS_ERROR_NO_INTERFACE;
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58
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59 if (guid == nsISupports.IID))
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60 {
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61 *ppvObject = cast(void*)cast(nsISupports) this;
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62 AddRef ();
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63 return NS_OK;
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64 }
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65
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66 if (guid == nsIFactory.IID)
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67 {
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68 *ppvObject = cast(void*)cast(nsIFactory) this;
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69 AddRef ();
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70 return NS_OK;
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71 }
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72
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73 *ppvObject = null;
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74 return NS_ERROR_NO_INTERFACE;
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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 Release ()
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82 {
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83 _refCount--;
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84 if (_refCount is 0)
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85 return 0;
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86 return _refCount;
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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 **************************************************************************/
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92
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93 /* nsIFactory */
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94
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95 nsresult CreateInstance (nsISupports aOuter, nsIID* iid, void** result)
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96 {
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97 if (result is null)
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98 return NS_ERROR_INVALID_ARG;
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99
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100 FilePicker picker = new FilePicker ();
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101 picker.AddRef ();
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102
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103 nsresult rv = picker.QueryInterface( iid, result );
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104
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105 // TODO: If the query fails, the error should be checked and the
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106 // newly created object deleted. In C++, this is done
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107 // like so:
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108 //
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109 // if (NS_FAILED(rv)) {
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110 // *result = nsnull;
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111 // delete picker;
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112 // }
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113 //
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114 // Deletion of the object really isn't critical here for D, but
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115 // it may be considered "good habit" to do anyway for XPCOM objects.
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116 // For now, just return the rv value. NS_FAILED needs to be
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117 // ported first. -JJR
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118
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119 return rv;
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120 }
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121
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122 nsresult LockFactory (int lock)
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123 {
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124 return NS_OK;
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125 }
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126
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127 }