1 | /* $Id: GuestDnDPrivate.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
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2 | /** @file
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3 | * Private guest drag and drop code, used by GuestDnDTarget + GuestDnDSource.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2011-2020 Oracle Corporation
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | */
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17 |
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18 | #define LOG_GROUP LOG_GROUP_GUEST_DND
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19 | #include "LoggingNew.h"
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20 |
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21 | #include "GuestImpl.h"
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22 | #include "AutoCaller.h"
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23 |
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24 | #ifdef VBOX_WITH_DRAG_AND_DROP
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25 | # include "ConsoleImpl.h"
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26 | # include "ProgressImpl.h"
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27 | # include "GuestDnDPrivate.h"
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28 |
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29 | # include <algorithm>
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30 |
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31 | # include <iprt/dir.h>
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32 | # include <iprt/path.h>
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33 | # include <iprt/stream.h>
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34 | # include <iprt/semaphore.h>
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35 | # include <iprt/cpp/utils.h>
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36 |
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37 | # include <VMMDev.h>
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38 |
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39 | # include <VBox/GuestHost/DragAndDrop.h>
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40 | # include <VBox/HostServices/DragAndDropSvc.h>
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41 | # include <VBox/version.h>
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42 |
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43 | /** @page pg_main_dnd Dungeons & Dragons - Overview
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44 | * Overview:
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45 | *
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46 | * Drag and Drop is handled over the internal HGCM service for the host <->
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47 | * guest communication. Beside that we need to map the Drag and Drop protocols
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48 | * of the various OS's we support to our internal channels, this is also highly
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49 | * communicative in both directions. Unfortunately HGCM isn't really designed
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50 | * for that. Next we have to foul some of the components. This includes to
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51 | * trick X11 on the guest side, but also Qt needs to be tricked on the host
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52 | * side a little bit.
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53 | *
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54 | * The following components are involved:
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55 | *
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56 | * 1. GUI: Uses the Qt classes for Drag and Drop and mainly forward the content
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57 | * of it to the Main IGuest interface (see UIDnDHandler.cpp).
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58 | * 2. Main: Public interface for doing Drag and Drop. Also manage the IProgress
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59 | * interfaces for blocking the caller by showing a progress dialog (see
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60 | * this file).
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61 | * 3. HGCM service: Handle all messages from the host to the guest at once and
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62 | * encapsulate the internal communication details (see dndmanager.cpp and
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63 | * friends).
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64 | * 4. Guest additions: Split into the platform neutral part (see
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65 | * VBoxGuestR3LibDragAndDrop.cpp) and the guest OS specific parts.
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66 | * Receive/send message from/to the HGCM service and does all guest specific
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67 | * operations. Currently only X11 is supported (see draganddrop.cpp within
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68 | * VBoxClient).
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69 | *
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70 | * Host -> Guest:
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71 | * 1. There are DnD Enter, Move, Leave events which are send exactly like this
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72 | * to the guest. The info includes the pos, mimetypes and allowed actions.
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73 | * The guest has to respond with an action it would accept, so the GUI could
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74 | * change the cursor.
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75 | * 2. On drop, first a drop event is sent. If this is accepted a drop data
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76 | * event follows. This blocks the GUI and shows some progress indicator.
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77 | *
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78 | * Guest -> Host:
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79 | * 1. The GUI is asking the guest if a DnD event is pending when the user moves
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80 | * the cursor out of the view window. If so, this returns the mimetypes and
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81 | * allowed actions.
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82 | * (2. On every mouse move this is asked again, to make sure the DnD event is
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83 | * still valid.)
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84 | * 3. On drop the host request the data from the guest. This blocks the GUI and
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85 | * shows some progress indicator.
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86 | *
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87 | * Some hints:
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88 | * m_strSupportedFormats here in this file defines the allowed mime-types.
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89 | * This is necessary because we need special handling for some of the
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90 | * mime-types. E.g. for URI lists we need to transfer the actual dirs and
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91 | * files. Text EOL may to be changed. Also unknown mime-types may need special
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92 | * handling as well, which may lead to undefined behavior in the host/guest, if
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93 | * not done.
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94 | *
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95 | * Dropping of a directory, means recursively transferring _all_ the content.
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96 | *
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97 | * Directories and files are placed into the user's temporary directory on the
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98 | * guest (e.g. /tmp/VirtualBox Dropped Files). We can't delete them after the
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99 | * DnD operation, because we didn't know what the DnD target does with it. E.g.
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100 | * it could just be opened in place. This could lead ofc to filling up the disk
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101 | * within the guest. To inform the user about this, a small app could be
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102 | * developed which scans this directory regularly and inform the user with a
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103 | * tray icon hint (and maybe the possibility to clean this up instantly). The
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104 | * same has to be done in the G->H direction when it is implemented.
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105 | *
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106 | * Of course only regularly files are supported. Symlinks are resolved and
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107 | * transfered as regularly files. First we don't know if the other side support
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108 | * symlinks at all and second they could point to somewhere in a directory tree
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109 | * which not exists on the other side.
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110 | *
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111 | * The code tries to preserve the file modes of the transfered dirs/files. This
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112 | * is useful (and maybe necessary) for two things:
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113 | * 1. If a file is executable, it should be also after the transfer, so the
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114 | * user can just execute it, without manually tweaking the modes first.
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115 | * 2. If a dir/file is not accessible by group/others in the host, it shouldn't
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116 | * be in the guest.
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117 | * In any case, the user mode is always set to rwx (so that we can access it
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118 | * ourself, in e.g. for a cleanup case after cancel).
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119 | *
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120 | * Cancel is supported in both directions and cleans up all previous steps
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121 | * (thats is: deleting already transfered dirs/files).
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122 | *
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123 | * In general I propose the following changes in the VBox HGCM infrastructure
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124 | * for the future:
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125 | * - Currently it isn't really possible to send messages to the guest from the
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126 | * host. The host informs the guest just that there is something, the guest
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127 | * than has to ask which message and depending on that send the appropriate
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128 | * message to the host, which is filled with the right data.
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129 | * - There is no generic interface for sending bigger memory blocks to/from the
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130 | * guest. This is now done here, but I guess was also necessary for e.g.
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131 | * guest execution. So something generic which brake this up into smaller
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132 | * blocks and send it would be nice (with all the error handling and such
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133 | * ofc).
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134 | * - I developed a "protocol" for the DnD communication here. So the host and
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135 | * the guest have always to match in the revision. This is ofc bad, because
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136 | * the additions could be outdated easily. So some generic protocol number
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137 | * support in HGCM for asking the host and the guest of the support version,
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138 | * would be nice. Ofc at least the host should be able to talk to the guest,
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139 | * even when the version is below the host one.
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140 | * All this stuff would be useful for the current services, but also for future
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141 | * onces.
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142 | *
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143 | ** @todo
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144 | * - ESC doesn't really work (on Windows guests it's already implemented)
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145 | * ... in any case it seems a little bit difficult to handle from the Qt
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146 | * side. Maybe also a host specific implementation becomes necessary ...
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147 | * this would be really worst ofc.
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148 | * - Add support for more mime-types (especially images, csv)
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149 | * - Test unusual behavior:
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150 | * - DnD service crash in the guest during a DnD op (e.g. crash of VBoxClient or X11)
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151 | * - Not expected order of the events between HGCM and the guest
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152 | * - Security considerations: We transfer a lot of memory between the guest and
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153 | * the host and even allow the creation of dirs/files. Maybe there should be
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154 | * limits introduced to preventing DOS attacks or filling up all the memory
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155 | * (both in the host and the guest).
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156 | */
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157 |
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158 | GuestDnDCallbackEvent::~GuestDnDCallbackEvent(void)
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159 | {
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160 | if (NIL_RTSEMEVENT != mSemEvent)
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161 | RTSemEventDestroy(mSemEvent);
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162 | }
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163 |
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164 | int GuestDnDCallbackEvent::Reset(void)
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165 | {
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166 | int rc = VINF_SUCCESS;
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167 |
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168 | if (NIL_RTSEMEVENT == mSemEvent)
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169 | rc = RTSemEventCreate(&mSemEvent);
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170 |
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171 | mRc = VINF_SUCCESS;
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172 | return rc;
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173 | }
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174 |
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175 | int GuestDnDCallbackEvent::Notify(int rc /* = VINF_SUCCESS */)
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176 | {
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177 | mRc = rc;
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178 | return RTSemEventSignal(mSemEvent);
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179 | }
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180 |
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181 | int GuestDnDCallbackEvent::Wait(RTMSINTERVAL msTimeout)
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182 | {
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183 | return RTSemEventWait(mSemEvent, msTimeout);
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184 | }
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185 |
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186 | ///////////////////////////////////////////////////////////////////////////////
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187 |
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188 | GuestDnDResponse::GuestDnDResponse(const ComObjPtr<Guest>& pGuest)
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189 | : m_EventSem(NIL_RTSEMEVENT)
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190 | , m_dndActionDefault(0)
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191 | , m_dndLstActionsAllowed(0)
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192 | , m_pParent(pGuest)
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193 | {
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194 | int rc = RTSemEventCreate(&m_EventSem);
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195 | if (RT_FAILURE(rc))
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196 | throw rc;
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197 | }
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198 |
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199 | GuestDnDResponse::~GuestDnDResponse(void)
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200 | {
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201 | reset();
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202 |
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203 | int rc = RTSemEventDestroy(m_EventSem);
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204 | AssertRC(rc);
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205 | }
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206 |
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207 | int GuestDnDResponse::notifyAboutGuestResponse(void) const
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208 | {
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209 | return RTSemEventSignal(m_EventSem);
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210 | }
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211 |
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212 | void GuestDnDResponse::reset(void)
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213 | {
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214 | LogFlowThisFuncEnter();
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215 |
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216 | m_dndActionDefault = 0;
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217 | m_dndLstActionsAllowed = 0;
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218 |
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219 | m_lstFormats.clear();
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220 | }
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221 |
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222 | HRESULT GuestDnDResponse::resetProgress(const ComObjPtr<Guest>& pParent)
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223 | {
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224 | m_pProgress.setNull();
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225 |
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226 | HRESULT hr = m_pProgress.createObject();
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227 | if (SUCCEEDED(hr))
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228 | {
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229 | hr = m_pProgress->init(static_cast<IGuest *>(pParent),
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230 | Bstr(pParent->tr("Dropping data")).raw(),
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231 | TRUE /* aCancelable */);
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232 | }
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233 |
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234 | return hr;
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235 | }
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236 |
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237 | bool GuestDnDResponse::isProgressCanceled(void) const
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238 | {
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239 | BOOL fCanceled;
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240 | if (!m_pProgress.isNull())
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241 | {
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242 | HRESULT hr = m_pProgress->COMGETTER(Canceled)(&fCanceled);
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243 | AssertComRC(hr);
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244 | }
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245 | else
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246 | fCanceled = TRUE;
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247 |
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248 | return RT_BOOL(fCanceled);
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249 | }
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250 |
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251 | int GuestDnDResponse::setCallback(uint32_t uMsg, PFNGUESTDNDCALLBACK pfnCallback, void *pvUser /* = NULL */)
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252 | {
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253 | GuestDnDCallbackMap::iterator it = m_mapCallbacks.find(uMsg);
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254 |
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255 | /* Add. */
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256 | if (pfnCallback)
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257 | {
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258 | if (it == m_mapCallbacks.end())
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259 | {
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260 | m_mapCallbacks[uMsg] = GuestDnDCallback(pfnCallback, uMsg, pvUser);
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261 | return VINF_SUCCESS;
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262 | }
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263 |
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264 | AssertMsgFailed(("Callback for message %RU32 already registered\n", uMsg));
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265 | return VERR_ALREADY_EXISTS;
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266 | }
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267 |
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268 | /* Remove. */
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269 | if (it != m_mapCallbacks.end())
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270 | m_mapCallbacks.erase(it);
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271 |
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272 | return VINF_SUCCESS;
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273 | }
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274 |
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275 | int GuestDnDResponse::setProgress(unsigned uPercentage,
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276 | uint32_t uStatus,
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277 | int rcOp /* = VINF_SUCCESS */, const Utf8Str &strMsg /* = "" */)
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278 | {
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279 | RT_NOREF(rcOp);
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280 | LogFlowFunc(("uStatus=%RU32, uPercentage=%RU32, rcOp=%Rrc, strMsg=%s\n",
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281 | uStatus, uPercentage, rcOp, strMsg.c_str()));
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282 |
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283 | int rc = VINF_SUCCESS;
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284 | if (!m_pProgress.isNull())
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285 | {
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286 | BOOL fCompleted;
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287 | HRESULT hr = m_pProgress->COMGETTER(Completed)(&fCompleted);
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288 | AssertComRC(hr);
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289 |
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290 | BOOL fCanceled;
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291 | hr = m_pProgress->COMGETTER(Canceled)(&fCanceled);
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292 | AssertComRC(hr);
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293 |
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294 | LogFlowFunc(("Current: fCompleted=%RTbool, fCanceled=%RTbool\n", fCompleted, fCanceled));
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295 |
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296 | if (!fCompleted)
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297 | {
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298 | switch (uStatus)
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299 | {
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300 | case DragAndDropSvc::DND_PROGRESS_ERROR:
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301 | {
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302 | hr = m_pProgress->i_notifyComplete(VBOX_E_IPRT_ERROR,
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303 | COM_IIDOF(IGuest),
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304 | m_pParent->getComponentName(), strMsg.c_str());
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305 | reset();
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306 | break;
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307 | }
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308 |
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309 | case DragAndDropSvc::DND_PROGRESS_CANCELLED:
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310 | {
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311 | hr = m_pProgress->Cancel();
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312 | AssertComRC(hr);
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313 | hr = m_pProgress->i_notifyComplete(S_OK);
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314 | AssertComRC(hr);
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315 |
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316 | reset();
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317 | break;
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318 | }
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319 |
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320 | case DragAndDropSvc::DND_PROGRESS_RUNNING:
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321 | case DragAndDropSvc::DND_PROGRESS_COMPLETE:
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322 | {
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323 | if (!fCanceled)
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324 | {
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325 | hr = m_pProgress->SetCurrentOperationProgress(uPercentage);
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326 | AssertComRC(hr);
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327 | if ( uStatus == DragAndDropSvc::DND_PROGRESS_COMPLETE
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328 | || uPercentage >= 100)
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329 | {
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330 | hr = m_pProgress->i_notifyComplete(S_OK);
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331 | AssertComRC(hr);
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332 | }
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333 | }
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334 | break;
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335 | }
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336 |
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337 | default:
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338 | break;
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339 | }
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340 | }
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341 |
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342 | hr = m_pProgress->COMGETTER(Completed)(&fCompleted);
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343 | AssertComRC(hr);
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344 | hr = m_pProgress->COMGETTER(Canceled)(&fCanceled);
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345 | AssertComRC(hr);
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346 |
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347 | LogFlowFunc(("New: fCompleted=%RTbool, fCanceled=%RTbool\n", fCompleted, fCanceled));
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348 | }
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349 |
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350 | LogFlowFuncLeaveRC(rc);
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351 | return rc;
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352 | }
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353 |
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354 | int GuestDnDResponse::onDispatch(uint32_t u32Function, void *pvParms, uint32_t cbParms)
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355 | {
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356 | LogFlowFunc(("u32Function=%RU32, pvParms=%p, cbParms=%RU32\n", u32Function, pvParms, cbParms));
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357 |
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358 | int rc = VERR_WRONG_ORDER; /* Play safe. */
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359 | bool fTryCallbacks = false;
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360 |
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361 | switch (u32Function)
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362 | {
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363 | case DragAndDropSvc::GUEST_DND_CONNECT:
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364 | {
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365 | LogThisFunc(("Client connected\n"));
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366 |
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367 | /* Nothing to do here (yet). */
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368 | rc = VINF_SUCCESS;
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369 | break;
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370 | }
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371 |
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372 | case DragAndDropSvc::GUEST_DND_DISCONNECT:
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373 | {
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374 | LogThisFunc(("Client disconnected\n"));
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375 | rc = setProgress(100, DND_PROGRESS_CANCELLED, VINF_SUCCESS);
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376 | break;
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377 | }
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378 |
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379 | case DragAndDropSvc::GUEST_DND_HG_ACK_OP:
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380 | {
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381 | DragAndDropSvc::PVBOXDNDCBHGACKOPDATA pCBData = reinterpret_cast<DragAndDropSvc::PVBOXDNDCBHGACKOPDATA>(pvParms);
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382 | AssertPtr(pCBData);
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383 | AssertReturn(sizeof(DragAndDropSvc::VBOXDNDCBHGACKOPDATA) == cbParms, VERR_INVALID_PARAMETER);
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384 | AssertReturn(DragAndDropSvc::CB_MAGIC_DND_HG_ACK_OP == pCBData->hdr.uMagic, VERR_INVALID_PARAMETER);
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385 |
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386 | setActionDefault(pCBData->uAction);
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387 | rc = notifyAboutGuestResponse();
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388 | break;
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389 | }
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390 |
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391 | case DragAndDropSvc::GUEST_DND_HG_REQ_DATA:
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392 | {
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393 | DragAndDropSvc::PVBOXDNDCBHGREQDATADATA pCBData = reinterpret_cast<DragAndDropSvc::PVBOXDNDCBHGREQDATADATA>(pvParms);
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394 | AssertPtr(pCBData);
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395 | AssertReturn(sizeof(DragAndDropSvc::VBOXDNDCBHGREQDATADATA) == cbParms, VERR_INVALID_PARAMETER);
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396 | AssertReturn(DragAndDropSvc::CB_MAGIC_DND_HG_REQ_DATA == pCBData->hdr.uMagic, VERR_INVALID_PARAMETER);
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397 |
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398 | if ( pCBData->cbFormat == 0
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399 | || pCBData->cbFormat > _64K /** @todo Make this configurable? */
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400 | || pCBData->pszFormat == NULL)
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401 | {
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402 | rc = VERR_INVALID_PARAMETER;
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403 | }
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404 | else if (!RTStrIsValidEncoding(pCBData->pszFormat))
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405 | {
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406 | rc = VERR_INVALID_PARAMETER;
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407 | }
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408 | else
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409 | {
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410 | setFormats(GuestDnD::toFormatList(pCBData->pszFormat));
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411 | rc = VINF_SUCCESS;
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412 | }
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413 |
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414 | int rc2 = notifyAboutGuestResponse();
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415 | if (RT_SUCCESS(rc))
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416 | rc = rc2;
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417 | break;
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418 | }
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419 |
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420 | case DragAndDropSvc::GUEST_DND_HG_EVT_PROGRESS:
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421 | {
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422 | DragAndDropSvc::PVBOXDNDCBHGEVTPROGRESSDATA pCBData =
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423 | reinterpret_cast<DragAndDropSvc::PVBOXDNDCBHGEVTPROGRESSDATA>(pvParms);
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424 | AssertPtr(pCBData);
|
---|
425 | AssertReturn(sizeof(DragAndDropSvc::VBOXDNDCBHGEVTPROGRESSDATA) == cbParms, VERR_INVALID_PARAMETER);
|
---|
426 | AssertReturn(DragAndDropSvc::CB_MAGIC_DND_HG_EVT_PROGRESS == pCBData->hdr.uMagic, VERR_INVALID_PARAMETER);
|
---|
427 |
|
---|
428 | rc = setProgress(pCBData->uPercentage, pCBData->uStatus, pCBData->rc);
|
---|
429 | if (RT_SUCCESS(rc))
|
---|
430 | rc = notifyAboutGuestResponse();
|
---|
431 | break;
|
---|
432 | }
|
---|
433 | #ifdef VBOX_WITH_DRAG_AND_DROP_GH
|
---|
434 | case DragAndDropSvc::GUEST_DND_GH_ACK_PENDING:
|
---|
435 | {
|
---|
436 | DragAndDropSvc::PVBOXDNDCBGHACKPENDINGDATA pCBData =
|
---|
437 | reinterpret_cast<DragAndDropSvc::PVBOXDNDCBGHACKPENDINGDATA>(pvParms);
|
---|
438 | AssertPtr(pCBData);
|
---|
439 | AssertReturn(sizeof(DragAndDropSvc::VBOXDNDCBGHACKPENDINGDATA) == cbParms, VERR_INVALID_PARAMETER);
|
---|
440 | AssertReturn(DragAndDropSvc::CB_MAGIC_DND_GH_ACK_PENDING == pCBData->hdr.uMagic, VERR_INVALID_PARAMETER);
|
---|
441 |
|
---|
442 | if ( pCBData->cbFormat == 0
|
---|
443 | || pCBData->cbFormat > _64K /** @todo Make the maximum size configurable? */
|
---|
444 | || pCBData->pszFormat == NULL)
|
---|
445 | {
|
---|
446 | rc = VERR_INVALID_PARAMETER;
|
---|
447 | }
|
---|
448 | else if (!RTStrIsValidEncoding(pCBData->pszFormat))
|
---|
449 | {
|
---|
450 | rc = VERR_INVALID_PARAMETER;
|
---|
451 | }
|
---|
452 | else
|
---|
453 | {
|
---|
454 | setFormats (GuestDnD::toFormatList(pCBData->pszFormat));
|
---|
455 | setActionDefault (pCBData->uDefAction);
|
---|
456 | setActionsAllowed(pCBData->uAllActions);
|
---|
457 |
|
---|
458 | rc = VINF_SUCCESS;
|
---|
459 | }
|
---|
460 |
|
---|
461 | int rc2 = notifyAboutGuestResponse();
|
---|
462 | if (RT_SUCCESS(rc))
|
---|
463 | rc = rc2;
|
---|
464 | break;
|
---|
465 | }
|
---|
466 | #endif /* VBOX_WITH_DRAG_AND_DROP_GH */
|
---|
467 | default:
|
---|
468 | /* * Try if the event is covered by a registered callback. */
|
---|
469 | fTryCallbacks = true;
|
---|
470 | break;
|
---|
471 | }
|
---|
472 |
|
---|
473 | /*
|
---|
474 | * Try the host's installed callbacks (if any).
|
---|
475 | */
|
---|
476 | if (fTryCallbacks)
|
---|
477 | {
|
---|
478 | GuestDnDCallbackMap::const_iterator it = m_mapCallbacks.find(u32Function);
|
---|
479 | if (it != m_mapCallbacks.end())
|
---|
480 | {
|
---|
481 | AssertPtr(it->second.pfnCallback);
|
---|
482 | rc = it->second.pfnCallback(u32Function, pvParms, cbParms, it->second.pvUser);
|
---|
483 | }
|
---|
484 | else
|
---|
485 | {
|
---|
486 | LogFlowFunc(("No callback for function %RU32 defined (%zu callbacks total)\n", u32Function, m_mapCallbacks.size()));
|
---|
487 | rc = VERR_NOT_SUPPORTED; /* Tell the guest. */
|
---|
488 | }
|
---|
489 | }
|
---|
490 |
|
---|
491 | LogFlowFunc(("Returning rc=%Rrc\n", rc));
|
---|
492 | return rc;
|
---|
493 | }
|
---|
494 |
|
---|
495 | HRESULT GuestDnDResponse::queryProgressTo(IProgress **ppProgress)
|
---|
496 | {
|
---|
497 | return m_pProgress.queryInterfaceTo(ppProgress);
|
---|
498 | }
|
---|
499 |
|
---|
500 | int GuestDnDResponse::waitForGuestResponse(RTMSINTERVAL msTimeout /*= 500 */) const
|
---|
501 | {
|
---|
502 | int rc = RTSemEventWait(m_EventSem, msTimeout);
|
---|
503 | #ifdef DEBUG_andy
|
---|
504 | LogFlowFunc(("msTimeout=%RU32, rc=%Rrc\n", msTimeout, rc));
|
---|
505 | #endif
|
---|
506 | return rc;
|
---|
507 | }
|
---|
508 |
|
---|
509 | ///////////////////////////////////////////////////////////////////////////////
|
---|
510 |
|
---|
511 | GuestDnD* GuestDnD::s_pInstance = NULL;
|
---|
512 |
|
---|
513 | GuestDnD::GuestDnD(const ComObjPtr<Guest> &pGuest)
|
---|
514 | : m_pGuest(pGuest)
|
---|
515 | {
|
---|
516 | LogFlowFuncEnter();
|
---|
517 |
|
---|
518 | m_pResponse = new GuestDnDResponse(pGuest);
|
---|
519 |
|
---|
520 | /* List of supported default MIME types. */
|
---|
521 | LogRel2(("DnD: Supported default host formats:\n"));
|
---|
522 | const com::Utf8Str arrEntries[] = { VBOX_DND_FORMATS_DEFAULT };
|
---|
523 | for (size_t i = 0; i < RT_ELEMENTS(arrEntries); i++)
|
---|
524 | {
|
---|
525 | m_strDefaultFormats.push_back(arrEntries[i]);
|
---|
526 | LogRel2(("DnD: \t%s\n", arrEntries[i].c_str()));
|
---|
527 | }
|
---|
528 | }
|
---|
529 |
|
---|
530 | GuestDnD::~GuestDnD(void)
|
---|
531 | {
|
---|
532 | LogFlowFuncEnter();
|
---|
533 |
|
---|
534 | if (m_pResponse)
|
---|
535 | delete m_pResponse;
|
---|
536 | }
|
---|
537 |
|
---|
538 | HRESULT GuestDnD::adjustScreenCoordinates(ULONG uScreenId, ULONG *puX, ULONG *puY) const
|
---|
539 | {
|
---|
540 | /** @todo r=andy Save the current screen's shifting coordinates to speed things up.
|
---|
541 | * Only query for new offsets when the screen ID has changed. */
|
---|
542 |
|
---|
543 | /* For multi-monitor support we need to add shift values to the coordinates
|
---|
544 | * (depending on the screen number). */
|
---|
545 | ComObjPtr<Console> pConsole = m_pGuest->i_getConsole();
|
---|
546 | ComPtr<IDisplay> pDisplay;
|
---|
547 | HRESULT hr = pConsole->COMGETTER(Display)(pDisplay.asOutParam());
|
---|
548 | if (FAILED(hr))
|
---|
549 | return hr;
|
---|
550 |
|
---|
551 | ULONG dummy;
|
---|
552 | LONG xShift, yShift;
|
---|
553 | GuestMonitorStatus_T monitorStatus;
|
---|
554 | hr = pDisplay->GetScreenResolution(uScreenId, &dummy, &dummy, &dummy,
|
---|
555 | &xShift, &yShift, &monitorStatus);
|
---|
556 | if (FAILED(hr))
|
---|
557 | return hr;
|
---|
558 |
|
---|
559 | if (puX)
|
---|
560 | *puX += xShift;
|
---|
561 | if (puY)
|
---|
562 | *puY += yShift;
|
---|
563 |
|
---|
564 | LogFlowFunc(("uScreenId=%RU32, x=%RU32, y=%RU32\n", uScreenId, puX ? *puX : 0, puY ? *puY : 0));
|
---|
565 | return S_OK;
|
---|
566 | }
|
---|
567 |
|
---|
568 | int GuestDnD::hostCall(uint32_t u32Function, uint32_t cParms, PVBOXHGCMSVCPARM paParms) const
|
---|
569 | {
|
---|
570 | Assert(!m_pGuest.isNull());
|
---|
571 | ComObjPtr<Console> pConsole = m_pGuest->i_getConsole();
|
---|
572 |
|
---|
573 | /* Forward the information to the VMM device. */
|
---|
574 | Assert(!pConsole.isNull());
|
---|
575 | VMMDev *pVMMDev = pConsole->i_getVMMDev();
|
---|
576 | if (!pVMMDev)
|
---|
577 | return VERR_COM_OBJECT_NOT_FOUND;
|
---|
578 |
|
---|
579 | return pVMMDev->hgcmHostCall("VBoxDragAndDropSvc", u32Function, cParms, paParms);
|
---|
580 | }
|
---|
581 |
|
---|
582 | /* static */
|
---|
583 | DECLCALLBACK(int) GuestDnD::notifyDnDDispatcher(void *pvExtension, uint32_t u32Function,
|
---|
584 | void *pvParms, uint32_t cbParms)
|
---|
585 | {
|
---|
586 | LogFlowFunc(("pvExtension=%p, u32Function=%RU32, pvParms=%p, cbParms=%RU32\n",
|
---|
587 | pvExtension, u32Function, pvParms, cbParms));
|
---|
588 |
|
---|
589 | GuestDnD *pGuestDnD = reinterpret_cast<GuestDnD*>(pvExtension);
|
---|
590 | AssertPtrReturn(pGuestDnD, VERR_INVALID_POINTER);
|
---|
591 |
|
---|
592 | /** @todo In case we need to handle multiple guest DnD responses at a time this
|
---|
593 | * would be the place to lookup and dispatch to those. For the moment we
|
---|
594 | * only have one response -- simple. */
|
---|
595 | GuestDnDResponse *pResp = pGuestDnD->m_pResponse;
|
---|
596 | if (pResp)
|
---|
597 | return pResp->onDispatch(u32Function, pvParms, cbParms);
|
---|
598 |
|
---|
599 | return VERR_NOT_SUPPORTED;
|
---|
600 | }
|
---|
601 |
|
---|
602 | /* static */
|
---|
603 | bool GuestDnD::isFormatInFormatList(const com::Utf8Str &strFormat, const GuestDnDMIMEList &lstFormats)
|
---|
604 | {
|
---|
605 | return std::find(lstFormats.begin(), lstFormats.end(), strFormat) != lstFormats.end();
|
---|
606 | }
|
---|
607 |
|
---|
608 | /* static */
|
---|
609 | GuestDnDMIMEList GuestDnD::toFormatList(const com::Utf8Str &strFormats)
|
---|
610 | {
|
---|
611 | GuestDnDMIMEList lstFormats;
|
---|
612 | RTCList<RTCString> lstFormatsTmp = strFormats.split("\r\n");
|
---|
613 |
|
---|
614 | for (size_t i = 0; i < lstFormatsTmp.size(); i++)
|
---|
615 | lstFormats.push_back(com::Utf8Str(lstFormatsTmp.at(i)));
|
---|
616 |
|
---|
617 | return lstFormats;
|
---|
618 | }
|
---|
619 |
|
---|
620 | /* static */
|
---|
621 | com::Utf8Str GuestDnD::toFormatString(const GuestDnDMIMEList &lstFormats)
|
---|
622 | {
|
---|
623 | com::Utf8Str strFormat;
|
---|
624 | for (size_t i = 0; i < lstFormats.size(); i++)
|
---|
625 | {
|
---|
626 | const com::Utf8Str &f = lstFormats.at(i);
|
---|
627 | strFormat += f + "\r\n";
|
---|
628 | }
|
---|
629 |
|
---|
630 | return strFormat;
|
---|
631 | }
|
---|
632 |
|
---|
633 | /* static */
|
---|
634 | GuestDnDMIMEList GuestDnD::toFilteredFormatList(const GuestDnDMIMEList &lstFormatsSupported, const GuestDnDMIMEList &lstFormatsWanted)
|
---|
635 | {
|
---|
636 | GuestDnDMIMEList lstFormats;
|
---|
637 |
|
---|
638 | for (size_t i = 0; i < lstFormatsWanted.size(); i++)
|
---|
639 | {
|
---|
640 | /* Only keep supported format types. */
|
---|
641 | if (std::find(lstFormatsSupported.begin(),
|
---|
642 | lstFormatsSupported.end(), lstFormatsWanted.at(i)) != lstFormatsSupported.end())
|
---|
643 | {
|
---|
644 | lstFormats.push_back(lstFormatsWanted[i]);
|
---|
645 | }
|
---|
646 | }
|
---|
647 |
|
---|
648 | return lstFormats;
|
---|
649 | }
|
---|
650 |
|
---|
651 | /* static */
|
---|
652 | GuestDnDMIMEList GuestDnD::toFilteredFormatList(const GuestDnDMIMEList &lstFormatsSupported, const com::Utf8Str &strFormatsWanted)
|
---|
653 | {
|
---|
654 | GuestDnDMIMEList lstFmt;
|
---|
655 |
|
---|
656 | RTCList<RTCString> lstFormats = strFormatsWanted.split("\r\n");
|
---|
657 | size_t i = 0;
|
---|
658 | while (i < lstFormats.size())
|
---|
659 | {
|
---|
660 | /* Only keep allowed format types. */
|
---|
661 | if (std::find(lstFormatsSupported.begin(),
|
---|
662 | lstFormatsSupported.end(), lstFormats.at(i)) != lstFormatsSupported.end())
|
---|
663 | {
|
---|
664 | lstFmt.push_back(lstFormats[i]);
|
---|
665 | }
|
---|
666 | i++;
|
---|
667 | }
|
---|
668 |
|
---|
669 | return lstFmt;
|
---|
670 | }
|
---|
671 |
|
---|
672 | /* static */
|
---|
673 | VBOXDNDACTION GuestDnD::toHGCMAction(DnDAction_T enmAction)
|
---|
674 | {
|
---|
675 | VBOXDNDACTION dndAction = VBOX_DND_ACTION_IGNORE;
|
---|
676 | switch (enmAction)
|
---|
677 | {
|
---|
678 | case DnDAction_Copy:
|
---|
679 | dndAction = VBOX_DND_ACTION_COPY;
|
---|
680 | break;
|
---|
681 | case DnDAction_Move:
|
---|
682 | dndAction = VBOX_DND_ACTION_MOVE;
|
---|
683 | break;
|
---|
684 | case DnDAction_Link:
|
---|
685 | /* For now it doesn't seems useful to allow a link
|
---|
686 | action between host & guest. Later? */
|
---|
687 | case DnDAction_Ignore:
|
---|
688 | /* Ignored. */
|
---|
689 | break;
|
---|
690 | default:
|
---|
691 | AssertMsgFailed(("Action %RU32 not recognized!\n", enmAction));
|
---|
692 | break;
|
---|
693 | }
|
---|
694 |
|
---|
695 | return dndAction;
|
---|
696 | }
|
---|
697 |
|
---|
698 | /* static */
|
---|
699 | void GuestDnD::toHGCMActions(DnDAction_T enmDnDActionDefault,
|
---|
700 | VBOXDNDACTION *pDnDActionDefault,
|
---|
701 | const std::vector<DnDAction_T> vecDnDActionsAllowed,
|
---|
702 | VBOXDNDACTIONLIST *pDnDLstActionsAllowed)
|
---|
703 | {
|
---|
704 | VBOXDNDACTIONLIST dndLstActionsAllowed = VBOX_DND_ACTION_IGNORE;
|
---|
705 | VBOXDNDACTION dndActionDefault = toHGCMAction(enmDnDActionDefault);
|
---|
706 |
|
---|
707 | if (!vecDnDActionsAllowed.empty())
|
---|
708 | {
|
---|
709 | /* First convert the allowed actions to a bit array. */
|
---|
710 | for (size_t i = 0; i < vecDnDActionsAllowed.size(); i++)
|
---|
711 | dndLstActionsAllowed |= toHGCMAction(vecDnDActionsAllowed[i]);
|
---|
712 |
|
---|
713 | /*
|
---|
714 | * If no default action is set (ignoring), try one of the
|
---|
715 | * set allowed actions, preferring copy, move (in that order).
|
---|
716 | */
|
---|
717 | if (isDnDIgnoreAction(dndActionDefault))
|
---|
718 | {
|
---|
719 | if (hasDnDCopyAction(dndLstActionsAllowed))
|
---|
720 | dndActionDefault = VBOX_DND_ACTION_COPY;
|
---|
721 | else if (hasDnDMoveAction(dndLstActionsAllowed))
|
---|
722 | dndActionDefault = VBOX_DND_ACTION_MOVE;
|
---|
723 | }
|
---|
724 | }
|
---|
725 |
|
---|
726 | if (pDnDActionDefault)
|
---|
727 | *pDnDActionDefault = dndActionDefault;
|
---|
728 | if (pDnDLstActionsAllowed)
|
---|
729 | *pDnDLstActionsAllowed = dndLstActionsAllowed;
|
---|
730 | }
|
---|
731 |
|
---|
732 | /* static */
|
---|
733 | DnDAction_T GuestDnD::toMainAction(VBOXDNDACTION dndAction)
|
---|
734 | {
|
---|
735 | /* For now it doesn't seems useful to allow a
|
---|
736 | * link action between host & guest. Maybe later! */
|
---|
737 | return isDnDCopyAction(dndAction) ? DnDAction_Copy
|
---|
738 | : isDnDMoveAction(dndAction) ? DnDAction_Move
|
---|
739 | : DnDAction_Ignore;
|
---|
740 | }
|
---|
741 |
|
---|
742 | /* static */
|
---|
743 | std::vector<DnDAction_T> GuestDnD::toMainActions(VBOXDNDACTIONLIST dndActionList)
|
---|
744 | {
|
---|
745 | std::vector<DnDAction_T> vecActions;
|
---|
746 |
|
---|
747 | /* For now it doesn't seems useful to allow a
|
---|
748 | * link action between host & guest. Maybe later! */
|
---|
749 | RTCList<DnDAction_T> lstActions;
|
---|
750 | if (hasDnDCopyAction(dndActionList))
|
---|
751 | lstActions.append(DnDAction_Copy);
|
---|
752 | if (hasDnDMoveAction(dndActionList))
|
---|
753 | lstActions.append(DnDAction_Move);
|
---|
754 |
|
---|
755 | for (size_t i = 0; i < lstActions.size(); ++i)
|
---|
756 | vecActions.push_back(lstActions.at(i));
|
---|
757 |
|
---|
758 | return vecActions;
|
---|
759 | }
|
---|
760 |
|
---|
761 | ///////////////////////////////////////////////////////////////////////////////
|
---|
762 |
|
---|
763 | GuestDnDBase::GuestDnDBase(void)
|
---|
764 | {
|
---|
765 | /* Initialize public attributes. */
|
---|
766 | m_lstFmtSupported = GUESTDNDINST()->defaultFormats();
|
---|
767 |
|
---|
768 | /* Initialzie private stuff. */
|
---|
769 | mDataBase.m_cTransfersPending = 0;
|
---|
770 | mDataBase.m_uProtocolVersion = 0;
|
---|
771 | }
|
---|
772 |
|
---|
773 | HRESULT GuestDnDBase::i_isFormatSupported(const com::Utf8Str &aFormat, BOOL *aSupported)
|
---|
774 | {
|
---|
775 | *aSupported = std::find(m_lstFmtSupported.begin(),
|
---|
776 | m_lstFmtSupported.end(), aFormat) != m_lstFmtSupported.end()
|
---|
777 | ? TRUE : FALSE;
|
---|
778 | return S_OK;
|
---|
779 | }
|
---|
780 |
|
---|
781 | HRESULT GuestDnDBase::i_getFormats(GuestDnDMIMEList &aFormats)
|
---|
782 | {
|
---|
783 | aFormats = m_lstFmtSupported;
|
---|
784 |
|
---|
785 | return S_OK;
|
---|
786 | }
|
---|
787 |
|
---|
788 | HRESULT GuestDnDBase::i_addFormats(const GuestDnDMIMEList &aFormats)
|
---|
789 | {
|
---|
790 | for (size_t i = 0; i < aFormats.size(); ++i)
|
---|
791 | {
|
---|
792 | Utf8Str strFormat = aFormats.at(i);
|
---|
793 | if (std::find(m_lstFmtSupported.begin(),
|
---|
794 | m_lstFmtSupported.end(), strFormat) == m_lstFmtSupported.end())
|
---|
795 | {
|
---|
796 | m_lstFmtSupported.push_back(strFormat);
|
---|
797 | }
|
---|
798 | }
|
---|
799 |
|
---|
800 | return S_OK;
|
---|
801 | }
|
---|
802 |
|
---|
803 | HRESULT GuestDnDBase::i_removeFormats(const GuestDnDMIMEList &aFormats)
|
---|
804 | {
|
---|
805 | for (size_t i = 0; i < aFormats.size(); ++i)
|
---|
806 | {
|
---|
807 | Utf8Str strFormat = aFormats.at(i);
|
---|
808 | GuestDnDMIMEList::iterator itFormat = std::find(m_lstFmtSupported.begin(),
|
---|
809 | m_lstFmtSupported.end(), strFormat);
|
---|
810 | if (itFormat != m_lstFmtSupported.end())
|
---|
811 | m_lstFmtSupported.erase(itFormat);
|
---|
812 | }
|
---|
813 |
|
---|
814 | return S_OK;
|
---|
815 | }
|
---|
816 |
|
---|
817 | HRESULT GuestDnDBase::i_getProtocolVersion(ULONG *puVersion)
|
---|
818 | {
|
---|
819 | int rc = getProtocolVersion((uint32_t *)puVersion);
|
---|
820 | return RT_SUCCESS(rc) ? S_OK : E_FAIL;
|
---|
821 | }
|
---|
822 |
|
---|
823 | /**
|
---|
824 | * Tries to guess the DnD protocol version to use on the guest, based on the
|
---|
825 | * installed Guest Additions version + revision.
|
---|
826 | *
|
---|
827 | * If unable to retrieve the protocol version, VERR_NOT_FOUND is returned along
|
---|
828 | * with protocol version 1.
|
---|
829 | *
|
---|
830 | * @return IPRT status code.
|
---|
831 | * @param puProto Where to store the protocol version.
|
---|
832 | */
|
---|
833 | int GuestDnDBase::getProtocolVersion(uint32_t *puProto)
|
---|
834 | {
|
---|
835 | AssertPtrReturn(puProto, VERR_INVALID_POINTER);
|
---|
836 |
|
---|
837 | int rc;
|
---|
838 |
|
---|
839 | uint32_t uProto = 0;
|
---|
840 | uint32_t uVerAdditions;
|
---|
841 | uint32_t uRevAdditions;
|
---|
842 | if ( m_pGuest
|
---|
843 | && (uVerAdditions = m_pGuest->i_getAdditionsVersion()) > 0
|
---|
844 | && (uRevAdditions = m_pGuest->i_getAdditionsRevision()) > 0)
|
---|
845 | {
|
---|
846 | #if 0 && defined(DEBUG)
|
---|
847 | /* Hardcode the to-used protocol version; nice for testing side effects. */
|
---|
848 | if (true)
|
---|
849 | uProto = 3;
|
---|
850 | else
|
---|
851 | #endif
|
---|
852 | if (uVerAdditions >= VBOX_FULL_VERSION_MAKE(5, 0, 0))
|
---|
853 | {
|
---|
854 | /** @todo
|
---|
855 | * r=bird: This is just too bad for anyone using an OSE additions build...
|
---|
856 | */
|
---|
857 | if (uRevAdditions >= 103344) /* Since r103344: Protocol v3. */
|
---|
858 | uProto = 3;
|
---|
859 | else
|
---|
860 | uProto = 2; /* VBox 5.0.0 - 5.0.8: Protocol v2. */
|
---|
861 | }
|
---|
862 | /* else: uProto: 0 */
|
---|
863 |
|
---|
864 | LogFlowFunc(("uVerAdditions=%RU32 (%RU32.%RU32.%RU32), r%RU32\n",
|
---|
865 | uVerAdditions, VBOX_FULL_VERSION_GET_MAJOR(uVerAdditions), VBOX_FULL_VERSION_GET_MINOR(uVerAdditions),
|
---|
866 | VBOX_FULL_VERSION_GET_BUILD(uVerAdditions), uRevAdditions));
|
---|
867 | rc = VINF_SUCCESS;
|
---|
868 | }
|
---|
869 | else
|
---|
870 | {
|
---|
871 | uProto = 1; /* Fallback. */
|
---|
872 | rc = VERR_NOT_FOUND;
|
---|
873 | }
|
---|
874 |
|
---|
875 | LogRel2(("DnD: Guest is using protocol v%RU32, rc=%Rrc\n", uProto, rc));
|
---|
876 |
|
---|
877 | *puProto = uProto;
|
---|
878 | return rc;
|
---|
879 | }
|
---|
880 |
|
---|
881 | int GuestDnDBase::msgQueueAdd(GuestDnDMsg *pMsg)
|
---|
882 | {
|
---|
883 | mDataBase.m_lstMsgOut.push_back(pMsg);
|
---|
884 | return VINF_SUCCESS;
|
---|
885 | }
|
---|
886 |
|
---|
887 | GuestDnDMsg *GuestDnDBase::msgQueueGetNext(void)
|
---|
888 | {
|
---|
889 | if (mDataBase.m_lstMsgOut.empty())
|
---|
890 | return NULL;
|
---|
891 | return mDataBase.m_lstMsgOut.front();
|
---|
892 | }
|
---|
893 |
|
---|
894 | void GuestDnDBase::msgQueueRemoveNext(void)
|
---|
895 | {
|
---|
896 | if (!mDataBase.m_lstMsgOut.empty())
|
---|
897 | {
|
---|
898 | GuestDnDMsg *pMsg = mDataBase.m_lstMsgOut.front();
|
---|
899 | if (pMsg)
|
---|
900 | delete pMsg;
|
---|
901 | mDataBase.m_lstMsgOut.pop_front();
|
---|
902 | }
|
---|
903 | }
|
---|
904 |
|
---|
905 | void GuestDnDBase::msgQueueClear(void)
|
---|
906 | {
|
---|
907 | LogFlowFunc(("cMsg=%zu\n", mDataBase.m_lstMsgOut.size()));
|
---|
908 |
|
---|
909 | GuestDnDMsgList::iterator itMsg = mDataBase.m_lstMsgOut.begin();
|
---|
910 | while (itMsg != mDataBase.m_lstMsgOut.end())
|
---|
911 | {
|
---|
912 | GuestDnDMsg *pMsg = *itMsg;
|
---|
913 | if (pMsg)
|
---|
914 | delete pMsg;
|
---|
915 |
|
---|
916 | itMsg++;
|
---|
917 | }
|
---|
918 |
|
---|
919 | mDataBase.m_lstMsgOut.clear();
|
---|
920 | }
|
---|
921 |
|
---|
922 | int GuestDnDBase::sendCancel(void)
|
---|
923 | {
|
---|
924 | GuestDnDMsg Msg;
|
---|
925 | Msg.setType(HOST_DND_CANCEL);
|
---|
926 | if (mDataBase.m_uProtocolVersion >= 3)
|
---|
927 | Msg.setNextUInt32(0); /** @todo ContextID not used yet. */
|
---|
928 |
|
---|
929 | LogRel2(("DnD: Cancelling operation on guest ..."));
|
---|
930 |
|
---|
931 | return GUESTDNDINST()->hostCall(Msg.getType(), Msg.getCount(), Msg.getParms());
|
---|
932 | }
|
---|
933 |
|
---|
934 | int GuestDnDBase::updateProgress(GuestDnDData *pData, GuestDnDResponse *pResp,
|
---|
935 | uint32_t cbDataAdd /* = 0 */)
|
---|
936 | {
|
---|
937 | AssertPtrReturn(pData, VERR_INVALID_POINTER);
|
---|
938 | AssertPtrReturn(pResp, VERR_INVALID_POINTER);
|
---|
939 | /* cbDataAdd is optional. */
|
---|
940 |
|
---|
941 | LogFlowFunc(("cbTotal=%RU64, cbProcessed=%RU64, cbRemaining=%RU64, cbDataAdd=%RU32\n",
|
---|
942 | pData->getTotal(), pData->getProcessed(), pData->getRemaining(), cbDataAdd));
|
---|
943 |
|
---|
944 | if (!pResp)
|
---|
945 | return VINF_SUCCESS;
|
---|
946 |
|
---|
947 | if (cbDataAdd)
|
---|
948 | pData->addProcessed(cbDataAdd);
|
---|
949 |
|
---|
950 | int rc = pResp->setProgress(pData->getPercentComplete(),
|
---|
951 | pData->isComplete()
|
---|
952 | ? DND_PROGRESS_COMPLETE
|
---|
953 | : DND_PROGRESS_RUNNING);
|
---|
954 | LogFlowFuncLeaveRC(rc);
|
---|
955 | return rc;
|
---|
956 | }
|
---|
957 |
|
---|
958 | /** @todo GuestDnDResponse *pResp needs to go. */
|
---|
959 | int GuestDnDBase::waitForEvent(GuestDnDCallbackEvent *pEvent, GuestDnDResponse *pResp, RTMSINTERVAL msTimeout)
|
---|
960 | {
|
---|
961 | AssertPtrReturn(pEvent, VERR_INVALID_POINTER);
|
---|
962 | AssertPtrReturn(pResp, VERR_INVALID_POINTER);
|
---|
963 |
|
---|
964 | int rc;
|
---|
965 |
|
---|
966 | LogFlowFunc(("msTimeout=%RU32\n", msTimeout));
|
---|
967 |
|
---|
968 | uint64_t tsStart = RTTimeMilliTS();
|
---|
969 | do
|
---|
970 | {
|
---|
971 | /*
|
---|
972 | * Wait until our desired callback triggered the
|
---|
973 | * wait event. As we don't want to block if the guest does not
|
---|
974 | * respond, do busy waiting here.
|
---|
975 | */
|
---|
976 | rc = pEvent->Wait(500 /* ms */);
|
---|
977 | if (RT_SUCCESS(rc))
|
---|
978 | {
|
---|
979 | rc = pEvent->Result();
|
---|
980 | LogFlowFunc(("Callback done, result is %Rrc\n", rc));
|
---|
981 | break;
|
---|
982 | }
|
---|
983 | else if (rc == VERR_TIMEOUT) /* Continue waiting. */
|
---|
984 | rc = VINF_SUCCESS;
|
---|
985 |
|
---|
986 | if ( msTimeout != RT_INDEFINITE_WAIT
|
---|
987 | && RTTimeMilliTS() - tsStart > msTimeout)
|
---|
988 | {
|
---|
989 | rc = VERR_TIMEOUT;
|
---|
990 | LogRel2(("DnD: Error: Guest did not respond within time\n"));
|
---|
991 | }
|
---|
992 | else if (pResp->isProgressCanceled()) /** @todo GuestDnDResponse *pResp needs to go. */
|
---|
993 | {
|
---|
994 | LogRel2(("DnD: Operation was canceled by user\n"));
|
---|
995 | rc = VERR_CANCELLED;
|
---|
996 | }
|
---|
997 |
|
---|
998 | } while (RT_SUCCESS(rc));
|
---|
999 |
|
---|
1000 | LogFlowFuncLeaveRC(rc);
|
---|
1001 | return rc;
|
---|
1002 | }
|
---|
1003 | #endif /* VBOX_WITH_DRAG_AND_DROP */
|
---|
1004 |
|
---|