1 | /* $Id: QIFileDialog.cpp 76606 2019-01-02 05:40:39Z vboxsync $ */
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2 | /** @file
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3 | * VBox Qt GUI - Qt extensions: QIFileDialog class implementation.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2009-2019 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 | /* Qt includes: */
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19 | #ifdef VBOX_WS_MAC
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20 | # include <QEventLoop>
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21 | #endif
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22 |
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23 | /* GUI includes: */
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24 | #include "QIFileDialog.h"
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25 | #include "UIModalWindowManager.h"
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26 |
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27 |
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28 | QIFileDialog::QIFileDialog(QWidget *pParent, Qt::WindowFlags enmFlags)
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29 | : QFileDialog(pParent, enmFlags)
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30 | {
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31 | }
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32 |
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33 | /* static */
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34 | QString QIFileDialog::getExistingDirectory(const QString &strDir,
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35 | QWidget *pParent,
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36 | const QString &strCaption,
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37 | bool fDirOnly,
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38 | bool fResolveSymLinks)
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39 | {
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40 | #ifdef VBOX_WS_MAC
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41 |
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42 | // WORKAROUND:
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43 | // After 4.5 exec ignores the Qt::Sheet flag.
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44 | // See "New Ways of Using Dialogs" in http://doc.trolltech.com/qq/QtQuarterly30.pdf why.
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45 | // We want the old behavior for file-save dialog. Unfortunately there is a bug in Qt 4.5.x
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46 | // which result in showing the native & the Qt dialog at the same time.
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47 | QWidget *pRealParent = windowManager().realParentWindow(pParent);
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48 | QFileDialog dlg(pRealParent);
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49 | windowManager().registerNewParent(&dlg, pRealParent);
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50 | dlg.setWindowTitle(strCaption);
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51 | dlg.setDirectory(strDir);
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52 | dlg.setResolveSymlinks(fResolveSymLinks);
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53 | dlg.setFileMode(fDirOnly ? QFileDialog::DirectoryOnly : QFileDialog::Directory);
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54 |
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55 | QEventLoop eventLoop;
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56 | QObject::connect(&dlg, &QFileDialog::finished,
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57 | &eventLoop, &QEventLoop::quit);
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58 | dlg.open();
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59 | eventLoop.exec();
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60 |
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61 | return dlg.result() == QDialog::Accepted ? dlg.selectedFiles().value(0, QString()) : QString();
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62 |
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63 | #else /* !VBOX_WS_MAC */
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64 |
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65 | QFileDialog::Options o;
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66 | if (fDirOnly)
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67 | o |= QFileDialog::ShowDirsOnly;
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68 | if (!fResolveSymLinks)
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69 | o |= QFileDialog::DontResolveSymlinks;
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70 | return QFileDialog::getExistingDirectory(pParent, strCaption, strDir, o);
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71 |
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72 | #endif /* !VBOX_WS_MAC */
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73 | }
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74 |
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75 | /* static */
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76 | QString QIFileDialog::getSaveFileName(const QString &strStartWith,
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77 | const QString &strFilters,
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78 | QWidget *pParent,
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79 | const QString &strCaption,
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80 | QString *pStrSelectedFilter /* = 0 */,
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81 | bool fResolveSymLinks /* = true */,
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82 | bool fConfirmOverwrite /* = false */)
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83 | {
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84 | #ifdef VBOX_WS_MAC
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85 |
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86 | // WORKAROUND:
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87 | // After 4.5 exec ignores the Qt::Sheet flag.
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88 | // See "New Ways of Using Dialogs" in http://doc.trolltech.com/qq/QtQuarterly30.pdf why.
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89 | // We want the old behavior for file-save dialog. Unfortunately there is a bug in Qt 4.5.x
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90 | // which result in showing the native & the Qt dialog at the same time.
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91 | QWidget *pRealParent = windowManager().realParentWindow(pParent);
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92 | QFileDialog dlg(pRealParent);
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93 | windowManager().registerNewParent(&dlg, pRealParent);
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94 | dlg.setWindowTitle(strCaption);
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95 |
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96 | /* Some predictive algorithm which seems missed in native code. */
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97 | QDir dir(strStartWith);
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98 | while (!dir.isRoot() && !dir.exists())
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99 | dir = QDir(QFileInfo(dir.absolutePath()).absolutePath());
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100 | const QString strDirectory = dir.absolutePath();
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101 | if (!strDirectory.isNull())
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102 | dlg.setDirectory(strDirectory);
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103 | if (strDirectory != strStartWith)
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104 | dlg.selectFile(QFileInfo(strStartWith).absoluteFilePath());
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105 |
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106 | dlg.setNameFilter(strFilters);
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107 | dlg.setFileMode(QFileDialog::AnyFile);
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108 | dlg.setAcceptMode(QFileDialog::AcceptSave);
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109 | if (pStrSelectedFilter)
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110 | dlg.selectNameFilter(*pStrSelectedFilter);
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111 | dlg.setResolveSymlinks(fResolveSymLinks);
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112 | dlg.setConfirmOverwrite(fConfirmOverwrite);
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113 |
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114 | QEventLoop eventLoop;
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115 | QObject::connect(&dlg, &QFileDialog::finished,
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116 | &eventLoop, &QEventLoop::quit);
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117 | dlg.open();
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118 | eventLoop.exec();
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119 |
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120 | return dlg.result() == QDialog::Accepted ? dlg.selectedFiles().value(0, QString()) : QString();
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121 |
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122 | #else /* !VBOX_WS_MAC */
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123 |
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124 | QFileDialog::Options o;
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125 | if (!fResolveSymLinks)
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126 | o |= QFileDialog::DontResolveSymlinks;
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127 | if (!fConfirmOverwrite)
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128 | o |= QFileDialog::DontConfirmOverwrite;
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129 | return QFileDialog::getSaveFileName(pParent, strCaption, strStartWith,
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130 | strFilters, pStrSelectedFilter, o);
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131 |
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132 | #endif /* !VBOX_WS_MAC */
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133 | }
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134 |
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135 | /* static */
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136 | QString QIFileDialog::getOpenFileName(const QString &strStartWith,
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137 | const QString &strFilters,
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138 | QWidget *pParent,
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139 | const QString &strCaption,
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140 | QString *pStrSelectedFilter /* = 0 */,
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141 | bool fResolveSymLinks /* = true */)
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142 | {
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143 | return getOpenFileNames(strStartWith,
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144 | strFilters,
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145 | pParent,
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146 | strCaption,
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147 | pStrSelectedFilter,
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148 | fResolveSymLinks,
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149 | true /* fSingleFile */).value(0, "");
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150 | }
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151 |
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152 | /* static */
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153 | QStringList QIFileDialog::getOpenFileNames(const QString &strStartWith,
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154 | const QString &strFilters,
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155 | QWidget *pParent,
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156 | const QString &strCaption,
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157 | QString *pStrSelectedFilter /* = 0 */,
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158 | bool fResolveSymLinks /* = true */,
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159 | bool fSingleFile /* = false */)
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160 | {
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161 | #ifdef VBOX_WS_MAC
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162 |
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163 | // WORKAROUND:
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164 | // After 4.5 exec ignores the Qt::Sheet flag.
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165 | // See "New Ways of Using Dialogs" in http://doc.trolltech.com/qq/QtQuarterly30.pdf why.
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166 | // We want the old behavior for file-save dialog. Unfortunately there is a bug in Qt 4.5.x
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167 | // which result in showing the native & the Qt dialog at the same time.
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168 | QWidget *pRealParent = windowManager().realParentWindow(pParent);
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169 | QFileDialog dlg(pRealParent);
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170 | windowManager().registerNewParent(&dlg, pRealParent);
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171 | dlg.setWindowTitle(strCaption);
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172 |
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173 | /* Some predictive algorithm which seems missed in native code. */
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174 | QDir dir(strStartWith);
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175 | while (!dir.isRoot() && !dir.exists())
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176 | dir = QDir(QFileInfo(dir.absolutePath()).absolutePath());
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177 | const QString strDirectory = dir.absolutePath();
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178 | if (!strDirectory.isNull())
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179 | dlg.setDirectory(strDirectory);
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180 | if (strDirectory != strStartWith)
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181 | dlg.selectFile(QFileInfo(strStartWith).absoluteFilePath());
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182 |
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183 | dlg.setNameFilter(strFilters);
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184 | if (fSingleFile)
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185 | dlg.setFileMode(QFileDialog::ExistingFile);
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186 | else
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187 | dlg.setFileMode(QFileDialog::ExistingFiles);
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188 | if (pStrSelectedFilter)
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189 | dlg.selectNameFilter(*pStrSelectedFilter);
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190 | dlg.setResolveSymlinks(fResolveSymLinks);
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191 |
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192 | QEventLoop eventLoop;
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193 | QObject::connect(&dlg, &QFileDialog::finished,
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194 | &eventLoop, &QEventLoop::quit);
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195 | dlg.open();
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196 | eventLoop.exec();
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197 |
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198 | return dlg.result() == QDialog::Accepted ? dlg.selectedFiles() : QStringList() << QString();
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199 |
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200 | #else
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201 |
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202 | QFileDialog::Options o;
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203 | if (!fResolveSymLinks)
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204 | o |= QFileDialog::DontResolveSymlinks;
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205 |
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206 | if (fSingleFile)
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207 | return QStringList() << QFileDialog::getOpenFileName(pParent, strCaption, strStartWith,
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208 | strFilters, pStrSelectedFilter, o);
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209 | else
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210 | return QFileDialog::getOpenFileNames(pParent, strCaption, strStartWith,
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211 | strFilters, pStrSelectedFilter, o);
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212 |
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213 | #endif
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214 | }
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215 |
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216 | /* static */
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217 | QString QIFileDialog::getFirstExistingDir(const QString &strStartDir)
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218 | {
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219 | QString strResult = QString();
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220 | QDir dir(strStartDir);
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221 | while (!dir.exists() && !dir.isRoot())
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222 | {
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223 | QFileInfo dirInfo(dir.absolutePath());
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224 | if (dir == QDir(dirInfo.absolutePath()))
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225 | break;
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226 | dir = dirInfo.absolutePath();
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227 | }
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228 | if (dir.exists() && !dir.isRoot())
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229 | strResult = dir.absolutePath();
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230 | return strResult;
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231 | }
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