1 | /* $Id: UIVirtualBoxEventHandler.cpp 106061 2024-09-16 14:03:52Z vboxsync $ */
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2 | /** @file
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3 | * VBox Qt GUI - UIVirtualBoxEventHandler class implementation.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2010-2024 Oracle and/or its affiliates.
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8 | *
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9 | * This file is part of VirtualBox base platform packages, as
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10 | * available from https://www.virtualbox.org.
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11 | *
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12 | * This program is free software; you can redistribute it and/or
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13 | * modify it under the terms of the GNU General Public License
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14 | * as published by the Free Software Foundation, in version 3 of the
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15 | * License.
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16 | *
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17 | * This program is distributed in the hope that it will be useful, but
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18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 | * General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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24 | *
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25 | * SPDX-License-Identifier: GPL-3.0-only
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26 | */
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27 |
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28 | /* GUI includes: */
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29 | #include "UIExtraDataManager.h"
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30 | #include "UIGlobalSession.h"
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31 | #include "UIMainEventListener.h"
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32 | #include "UIVirtualBoxEventHandler.h"
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33 |
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34 | /* COM includes: */
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35 | #include "CEventListener.h"
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36 | #include "CEventSource.h"
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37 | #include "CVirtualBox.h"
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38 |
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39 |
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40 | /** Private QObject extension providing UIVirtualBoxEventHandler with CVirtualBox event-source. */
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41 | class UIVirtualBoxEventHandlerProxy : public QObject
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42 | {
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43 | Q_OBJECT;
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44 |
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45 | signals:
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46 |
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47 | /** Notifies about @a state change event for the machine with @a uId. */
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48 | void sigMachineStateChange(const QUuid &uId, const KMachineState state);
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49 | /** Notifies about data change event for the machine with @a uId. */
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50 | void sigMachineDataChange(const QUuid &uId);
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51 | /** Notifies about machine with @a uId was @a fRegistered. */
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52 | void sigMachineRegistered(const QUuid &uId, const bool fRegistered);
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53 | /** Notifies about machine with @a uId has groups changed. */
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54 | void sigMachineGroupsChange(const QUuid &uId);
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55 | /** Notifies about @a state change event for the session of the machine with @a uId. */
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56 | void sigSessionStateChange(const QUuid &uId, const KSessionState state);
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57 | /** Notifies about snapshot with @a uSnapshotId was taken for the machine with @a uId. */
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58 | void sigSnapshotTake(const QUuid &uId, const QUuid &uSnapshotId);
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59 | /** Notifies about snapshot with @a uSnapshotId was deleted for the machine with @a uId. */
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60 | void sigSnapshotDelete(const QUuid &uId, const QUuid &uSnapshotId);
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61 | /** Notifies about snapshot with @a uSnapshotId was changed for the machine with @a uId. */
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62 | void sigSnapshotChange(const QUuid &uId, const QUuid &uSnapshotId);
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63 | /** Notifies about snapshot with @a uSnapshotId was restored for the machine with @a uId. */
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64 | void sigSnapshotRestore(const QUuid &uId, const QUuid &uSnapshotId);
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65 | /** Notifies about request to uninstall cloud provider with @a uId. */
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66 | void sigCloudProviderUninstall(const QUuid &uId);
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67 | /** Notifies about cloud provider list changed. */
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68 | void sigCloudProviderListChanged();
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69 | /** Notifies about cloud profile with specified @a strName of provider with specified @a uProviderId is @a fRegistered. */
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70 | void sigCloudProfileRegistered(const QUuid &uProviderId, const QString &strName, bool fRegistered);
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71 | /** Notifies about cloud profile with specified @a strName of provider with specified @a uProviderId is changed. */
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72 | void sigCloudProfileChanged(const QUuid &uProviderId, const QString &strName);
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73 |
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74 | /** Notifies about storage controller change.
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75 | * @param uMachineId Brings the ID of machine corresponding controller belongs to.
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76 | * @param strControllerName Brings the name of controller this event is related to. */
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77 | void sigStorageControllerChange(const QUuid &uMachineId, const QString &strControllerName);
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78 | /** Notifies about storage device change.
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79 | * @param comAttachment Brings corresponding attachment.
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80 | * @param fRemoved Brings whether medium is removed or added.
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81 | * @param fSilent Brings whether this change has gone silent for guest. */
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82 | void sigStorageDeviceChange(CMediumAttachment comAttachment, bool fRemoved, bool fSilent);
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83 | /** Notifies about storage medium @a comAttachment state change. */
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84 | void sigMediumChange(CMediumAttachment comAttachment);
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85 | /** Notifies about storage @a comMedium config change. */
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86 | void sigMediumConfigChange(CMedium comMedium);
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87 | /** Notifies about storage medium is (un)registered.
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88 | * @param uMediumId Brings corresponding medium ID.
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89 | * @param enmMediumType Brings corresponding medium type.
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90 | * @param fRegistered Brings whether medium is registered or unregistered. */
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91 | void sigMediumRegistered(const QUuid &uMediumId, KDeviceType enmMediumType, bool fRegistered);
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92 | /** Notifies extension pack. install.
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93 | * @param strName Passes extension pack name. */
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94 | void sigExtensionPackInstalled(const QString &strName);
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95 | /** Notifies extension pack. unnstall.
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96 | * @param strName Passes extension pack name. */
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97 | void sigExtensionPackUninstalled(const QString &strName);
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98 |
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99 | public:
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100 |
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101 | /** Constructs event proxy object on the basis of passed @a pParent. */
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102 | UIVirtualBoxEventHandlerProxy(QObject *pParent);
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103 | /** Destructs event proxy object. */
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104 | ~UIVirtualBoxEventHandlerProxy();
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105 |
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106 | protected:
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107 |
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108 | /** @name Prepare/Cleanup cascade.
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109 | * @{ */
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110 | /** Prepares all. */
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111 | void prepare();
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112 | /** Prepares listener. */
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113 | void prepareListener();
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114 | /** Prepares connections. */
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115 | void prepareConnections();
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116 |
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117 | /** Cleanups connections. */
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118 | void cleanupConnections();
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119 | /** Cleanups listener. */
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120 | void cleanupListener();
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121 | /** Cleanups all. */
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122 | void cleanup();
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123 | /** @} */
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124 |
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125 | private:
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126 |
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127 | /** Holds the COM event source instance. */
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128 | CEventSource m_comEventSource;
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129 |
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130 | /** Holds the Qt event listener instance. */
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131 | ComObjPtr<UIMainEventListenerImpl> m_pQtListener;
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132 | /** Holds the COM event listener instance. */
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133 | CEventListener m_comEventListener;
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134 | };
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135 |
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136 |
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137 | /*********************************************************************************************************************************
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138 | * Class UIVirtualBoxEventHandlerProxy implementation. *
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139 | *********************************************************************************************************************************/
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140 |
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141 | UIVirtualBoxEventHandlerProxy::UIVirtualBoxEventHandlerProxy(QObject *pParent)
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142 | : QObject(pParent)
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143 | {
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144 | /* Prepare: */
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145 | prepare();
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146 | }
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147 |
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148 | UIVirtualBoxEventHandlerProxy::~UIVirtualBoxEventHandlerProxy()
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149 | {
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150 | /* Cleanup: */
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151 | cleanup();
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152 | }
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153 |
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154 | void UIVirtualBoxEventHandlerProxy::prepare()
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155 | {
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156 | /* Prepare: */
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157 | prepareListener();
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158 | prepareConnections();
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159 | }
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160 |
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161 | void UIVirtualBoxEventHandlerProxy::prepareListener()
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162 | {
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163 | /* Create Main event listener instance: */
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164 | m_pQtListener.createObject();
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165 | m_pQtListener->init(new UIMainEventListener, this);
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166 | m_comEventListener = CEventListener(m_pQtListener);
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167 |
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168 | /* Get VirtualBox: */
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169 | const CVirtualBox comVBox = gpGlobalSession->virtualBox();
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170 | /* Get VirtualBox event source: */
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171 | m_comEventSource = comVBox.GetEventSource();
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172 | Assert(comVBox.isOk());
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173 |
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174 | /* Enumerate all the required event-types: */
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175 | QVector<KVBoxEventType> eventTypes;
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176 | eventTypes
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177 | << KVBoxEventType_OnMachineStateChanged
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178 | << KVBoxEventType_OnMachineDataChanged
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179 | << KVBoxEventType_OnMachineRegistered
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180 | << KVBoxEventType_OnMachineGroupsChanged
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181 | << KVBoxEventType_OnSessionStateChanged
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182 | << KVBoxEventType_OnSnapshotTaken
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183 | << KVBoxEventType_OnSnapshotDeleted
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184 | << KVBoxEventType_OnSnapshotChanged
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185 | << KVBoxEventType_OnSnapshotRestored
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186 | << KVBoxEventType_OnCloudProviderListChanged
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187 | << KVBoxEventType_OnCloudProviderUninstall
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188 | << KVBoxEventType_OnCloudProfileRegistered
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189 | << KVBoxEventType_OnCloudProfileChanged
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190 | << KVBoxEventType_OnStorageControllerChanged
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191 | << KVBoxEventType_OnStorageDeviceChanged
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192 | << KVBoxEventType_OnMediumChanged
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193 | << KVBoxEventType_OnMediumConfigChanged
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194 | << KVBoxEventType_OnMediumRegistered
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195 | << KVBoxEventType_OnExtPackInstalled;
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196 |
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197 | /* Register event listener for event source aggregator: */
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198 | m_comEventSource.RegisterListener(m_comEventListener, eventTypes, FALSE /* active? */);
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199 | Assert(m_comEventSource.isOk());
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200 |
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201 | /* Register event sources in their listeners as well: */
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202 | m_pQtListener->getWrapped()->registerSource(m_comEventSource, m_comEventListener);
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203 | }
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204 |
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205 | void UIVirtualBoxEventHandlerProxy::prepareConnections()
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206 | {
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207 | /* Create direct (sync) connections for signals of main event listener.
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208 | * Keep in mind that the abstract Qt4 connection notation should be used here. */
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209 | connect(m_pQtListener->getWrapped(), SIGNAL(sigMachineStateChange(QUuid, KMachineState)),
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210 | this, SIGNAL(sigMachineStateChange(QUuid, KMachineState)),
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211 | Qt::DirectConnection);
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212 | connect(m_pQtListener->getWrapped(), SIGNAL(sigMachineDataChange(QUuid)),
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213 | this, SIGNAL(sigMachineDataChange(QUuid)),
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214 | Qt::DirectConnection);
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215 | connect(m_pQtListener->getWrapped(), SIGNAL(sigMachineRegistered(QUuid, bool)),
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216 | this, SIGNAL(sigMachineRegistered(QUuid, bool)),
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217 | Qt::DirectConnection);
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218 | connect(m_pQtListener->getWrapped(), SIGNAL(sigMachineGroupsChange(QUuid)),
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219 | this, SIGNAL(sigMachineGroupsChange(QUuid)),
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220 | Qt::DirectConnection);
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221 | connect(m_pQtListener->getWrapped(), SIGNAL(sigSessionStateChange(QUuid, KSessionState)),
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222 | this, SIGNAL(sigSessionStateChange(QUuid, KSessionState)),
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223 | Qt::DirectConnection);
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224 | connect(m_pQtListener->getWrapped(), SIGNAL(sigSnapshotTake(QUuid, QUuid)),
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225 | this, SIGNAL(sigSnapshotTake(QUuid, QUuid)),
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226 | Qt::DirectConnection);
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227 | connect(m_pQtListener->getWrapped(), SIGNAL(sigSnapshotDelete(QUuid, QUuid)),
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228 | this, SIGNAL(sigSnapshotDelete(QUuid, QUuid)),
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229 | Qt::DirectConnection);
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230 | connect(m_pQtListener->getWrapped(), SIGNAL(sigSnapshotChange(QUuid, QUuid)),
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231 | this, SIGNAL(sigSnapshotChange(QUuid, QUuid)),
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232 | Qt::DirectConnection);
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233 | connect(m_pQtListener->getWrapped(), SIGNAL(sigSnapshotRestore(QUuid, QUuid)),
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234 | this, SIGNAL(sigSnapshotRestore(QUuid, QUuid)),
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235 | Qt::DirectConnection);
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236 | connect(m_pQtListener->getWrapped(), SIGNAL(sigCloudProviderListChanged()),
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237 | this, SIGNAL(sigCloudProviderListChanged()),
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238 | Qt::DirectConnection);
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239 | connect(m_pQtListener->getWrapped(), SIGNAL(sigCloudProviderUninstall(QUuid)),
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240 | this, SIGNAL(sigCloudProviderUninstall(QUuid)),
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241 | Qt::DirectConnection);
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242 | connect(m_pQtListener->getWrapped(), SIGNAL(sigCloudProfileRegistered(QUuid, QString, bool)),
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243 | this, SIGNAL(sigCloudProfileRegistered(QUuid, QString, bool)),
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244 | Qt::DirectConnection);
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245 | connect(m_pQtListener->getWrapped(), SIGNAL(sigCloudProfileChanged(QUuid, QString)),
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246 | this, SIGNAL(sigCloudProfileChanged(QUuid, QString)),
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247 | Qt::DirectConnection);
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248 | connect(m_pQtListener->getWrapped(), SIGNAL(sigStorageControllerChange(QUuid, QString)),
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249 | this, SIGNAL(sigStorageControllerChange(QUuid, QString)),
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250 | Qt::DirectConnection);
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251 | connect(m_pQtListener->getWrapped(), SIGNAL(sigStorageDeviceChange(CMediumAttachment, bool, bool)),
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252 | this, SIGNAL(sigStorageDeviceChange(CMediumAttachment, bool, bool)),
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253 | Qt::DirectConnection);
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254 | connect(m_pQtListener->getWrapped(), SIGNAL(sigMediumChange(CMediumAttachment)),
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255 | this, SIGNAL(sigMediumChange(CMediumAttachment)),
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256 | Qt::DirectConnection);
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257 | connect(m_pQtListener->getWrapped(), SIGNAL(sigMediumConfigChange(CMedium)),
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258 | this, SIGNAL(sigMediumConfigChange(CMedium)),
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259 | Qt::DirectConnection);
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260 | connect(m_pQtListener->getWrapped(), SIGNAL(sigMediumRegistered(QUuid, KDeviceType, bool)),
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261 | this, SIGNAL(sigMediumRegistered(QUuid, KDeviceType, bool)),
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262 | Qt::DirectConnection);
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263 | connect(m_pQtListener->getWrapped(), SIGNAL(sigExtensionPackInstalled(QString)),
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264 | this, SIGNAL(sigExtensionPackInstalled(QString)),
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265 | Qt::DirectConnection);
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266 | connect(m_pQtListener->getWrapped(), SIGNAL(sigExtensionPackUninstalled(QString)),
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267 | this, SIGNAL(sigExtensionPackUninstalled(QString)),
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268 | Qt::DirectConnection);
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269 | }
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270 |
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271 | void UIVirtualBoxEventHandlerProxy::cleanupConnections()
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272 | {
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273 | /* Nothing for now. */
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274 | }
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275 |
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276 | void UIVirtualBoxEventHandlerProxy::cleanupListener()
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277 | {
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278 | /* Unregister everything: */
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279 | m_pQtListener->getWrapped()->unregisterSources();
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280 |
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281 | /* Unregister event listener for event source aggregator: */
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282 | m_comEventSource.UnregisterListener(m_comEventListener);
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283 | m_comEventSource.detach();
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284 | }
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285 |
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286 | void UIVirtualBoxEventHandlerProxy::cleanup()
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287 | {
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288 | /* Cleanup: */
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289 | cleanupConnections();
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290 | cleanupListener();
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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 | * Class UIVirtualBoxEventHandler implementation. *
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296 | *********************************************************************************************************************************/
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297 |
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298 | /* static */
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299 | UIVirtualBoxEventHandler *UIVirtualBoxEventHandler::s_pInstance = 0;
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300 |
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301 | /* static */
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302 | UIVirtualBoxEventHandler *UIVirtualBoxEventHandler::instance()
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303 | {
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304 | if (!s_pInstance)
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305 | s_pInstance = new UIVirtualBoxEventHandler;
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306 | return s_pInstance;
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307 | }
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308 |
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309 | /* static */
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310 | void UIVirtualBoxEventHandler::destroy()
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311 | {
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312 | if (s_pInstance)
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313 | {
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314 | delete s_pInstance;
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315 | s_pInstance = 0;
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316 | }
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317 | }
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318 |
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319 | UIVirtualBoxEventHandler::UIVirtualBoxEventHandler()
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320 | : m_pProxy(new UIVirtualBoxEventHandlerProxy(this))
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321 | {
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322 | /* Prepare: */
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323 | prepare();
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324 | }
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325 |
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326 | void UIVirtualBoxEventHandler::prepare()
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327 | {
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328 | /* Prepare connections: */
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329 | prepareConnections();
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330 | }
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331 |
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332 | void UIVirtualBoxEventHandler::prepareConnections()
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333 | {
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334 | /* Create queued (async) connections for signals of event proxy object.
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335 | * Keep in mind that the abstract Qt4 connection notation should be used here. */
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336 | connect(m_pProxy, SIGNAL(sigMachineStateChange(QUuid, KMachineState)),
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337 | this, SIGNAL(sigMachineStateChange(QUuid, KMachineState)),
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338 | Qt::QueuedConnection);
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339 | connect(m_pProxy, SIGNAL(sigMachineDataChange(QUuid)),
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340 | this, SIGNAL(sigMachineDataChange(QUuid)),
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341 | Qt::QueuedConnection);
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342 | connect(m_pProxy, SIGNAL(sigMachineRegistered(QUuid, bool)),
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343 | this, SIGNAL(sigMachineRegistered(QUuid, bool)),
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344 | Qt::QueuedConnection);
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345 | connect(m_pProxy, SIGNAL(sigMachineGroupsChange(QUuid)),
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346 | this, SIGNAL(sigMachineGroupsChange(QUuid)),
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347 | Qt::QueuedConnection);
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348 | connect(m_pProxy, SIGNAL(sigSessionStateChange(QUuid, KSessionState)),
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349 | this, SIGNAL(sigSessionStateChange(QUuid, KSessionState)),
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350 | Qt::QueuedConnection);
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351 | connect(m_pProxy, SIGNAL(sigSnapshotTake(QUuid, QUuid)),
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352 | this, SIGNAL(sigSnapshotTake(QUuid, QUuid)),
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353 | Qt::QueuedConnection);
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354 | connect(m_pProxy, SIGNAL(sigSnapshotDelete(QUuid, QUuid)),
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355 | this, SIGNAL(sigSnapshotDelete(QUuid, QUuid)),
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356 | Qt::QueuedConnection);
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357 | connect(m_pProxy, SIGNAL(sigSnapshotChange(QUuid, QUuid)),
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358 | this, SIGNAL(sigSnapshotChange(QUuid, QUuid)),
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359 | Qt::QueuedConnection);
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360 | connect(m_pProxy, SIGNAL(sigSnapshotRestore(QUuid, QUuid)),
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361 | this, SIGNAL(sigSnapshotRestore(QUuid, QUuid)),
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362 | Qt::QueuedConnection);
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363 | connect(m_pProxy, SIGNAL(sigCloudProviderListChanged()),
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364 | this, SIGNAL(sigCloudProviderListChanged()),
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365 | Qt::QueuedConnection);
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366 | connect(m_pProxy, SIGNAL(sigCloudProviderUninstall(QUuid)),
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367 | this, SIGNAL(sigCloudProviderUninstall(QUuid)),
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368 | Qt::BlockingQueuedConnection);
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369 | connect(m_pProxy, SIGNAL(sigCloudProfileRegistered(QUuid, QString, bool)),
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370 | this, SIGNAL(sigCloudProfileRegistered(QUuid, QString, bool)),
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371 | Qt::QueuedConnection);
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372 | connect(m_pProxy, SIGNAL(sigCloudProfileChanged(QUuid, QString)),
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373 | this, SIGNAL(sigCloudProfileChanged(QUuid, QString)),
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374 | Qt::QueuedConnection);
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375 | connect(m_pProxy, SIGNAL(sigStorageControllerChange(QUuid, QString)),
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376 | this, SIGNAL(sigStorageControllerChange(QUuid, QString)),
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377 | Qt::QueuedConnection);
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378 | connect(m_pProxy, SIGNAL(sigStorageDeviceChange(CMediumAttachment, bool, bool)),
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379 | this, SIGNAL(sigStorageDeviceChange(CMediumAttachment, bool, bool)),
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380 | Qt::QueuedConnection);
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381 | connect(m_pProxy, SIGNAL(sigMediumChange(CMediumAttachment)),
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382 | this, SIGNAL(sigMediumChange(CMediumAttachment)),
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383 | Qt::QueuedConnection);
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384 | connect(m_pProxy, SIGNAL(sigMediumConfigChange(CMedium)),
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385 | this, SIGNAL(sigMediumConfigChange(CMedium)),
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386 | Qt::QueuedConnection);
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387 | connect(m_pProxy, SIGNAL(sigMediumRegistered(QUuid, KDeviceType, bool)),
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388 | this, SIGNAL(sigMediumRegistered(QUuid, KDeviceType, bool)),
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389 | Qt::QueuedConnection);
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390 | connect(m_pProxy, SIGNAL(sigExtensionPackInstalled(QString)),
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391 | this, SIGNAL(sigExtensionPackInstalled(QString)),
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392 | Qt::QueuedConnection);
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393 | connect(m_pProxy, SIGNAL(sigExtensionPackUninstalled(QString)),
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394 | this, SIGNAL(sigExtensionPackUninstalled(QString)),
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395 | Qt::QueuedConnection);
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396 | }
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397 |
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398 |
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399 | #include "UIVirtualBoxEventHandler.moc"
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