src/settings/viewpropsprogressinfo.cpp

   1 /*
   2  * SPDX-FileCopyrightText: 2006 Peter Penz <peter.penz@gmx.at>
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-or-later
   5  */
   6
   7 #include "viewpropsprogressinfo.h"
   8
   9 #include "applyviewpropsjob.h"
  10 #include "views/viewproperties.h"
  11
  12 #include <KConfigGroup>
  13 #include <KLocalizedString>
  14
  15 #include <QDialogButtonBox>
  16 #include <QLabel>
  17 #include <QProgressBar>
  18 #include <QPushButton>
  19 #include <QTimer>
  20 #include <QVBoxLayout>
  21
  22 ViewPropsProgressInfo::ViewPropsProgressInfo(QWidget* parent,
  23                                              const QUrl& dir,
  24                                              const ViewProperties& viewProps) :
  25     QDialog(parent),
  26     m_dir(dir),
  27     m_viewProps(nullptr),
  28     m_label(nullptr),
  29     m_progressBar(nullptr),
  30     m_dirSizeJob(nullptr),
  31     m_applyViewPropsJob(nullptr),
  32     m_timer(nullptr)
  33 {
  34     const QSize minSize = minimumSize();
  35     setMinimumSize(QSize(320, minSize.height()));
  36     setWindowTitle(i18nc("@title:window", "Applying View Properties"));
  37     setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Minimum);
  38
  39     m_viewProps = new ViewProperties(dir);
  40     m_viewProps->setDirProperties(viewProps);
  41
  42     // the view properties are stored by the ApplyViewPropsJob, so prevent
  43     // that the view properties are saved twice:
  44     m_viewProps->setAutoSaveEnabled(false);
  45
  46     auto layout = new QVBoxLayout(this);
  47
  48     m_label = new QLabel(i18nc("@info:progress", "Counting folders: %1", 0), this);
  49     layout->addWidget(m_label);
  50
  51     m_progressBar = new QProgressBar(this);
  52     m_progressBar->setMinimum(0);
  53     m_progressBar->setMaximum(0);
  54     m_progressBar->setValue(0);
  55     layout->addWidget(m_progressBar);
  56
  57     layout->addStretch();
  58
  59     auto buttonBox = new QDialogButtonBox(QDialogButtonBox::Cancel, this);
  60     connect(buttonBox, &QDialogButtonBox::accepted, this, &ViewPropsProgressInfo::accept);
  61     connect(buttonBox, &QDialogButtonBox::rejected, this, &ViewPropsProgressInfo::reject);
  62     layout->addWidget(buttonBox);
  63
  64     // Use the directory size job to count the number of directories first. This
  65     // allows to give a progress indication for the user when applying the view
  66     // properties later.
  67     m_dirSizeJob = KIO::directorySize(dir);
  68     connect(m_dirSizeJob, &KIO::DirectorySizeJob::result,
  69             this, &ViewPropsProgressInfo::applyViewProperties);
  70
  71     // The directory size job cannot emit any progress signal, as it is not aware
  72     // about the total number of directories. Therefor a timer is triggered, which
  73     // periodically updates the current directory count.
  74     m_timer = new QTimer(this);
  75     connect(m_timer, &QTimer::timeout,
  76             this, &ViewPropsProgressInfo::updateProgress);
  77     m_timer->start(300);
  78 }
  79
  80 ViewPropsProgressInfo::~ViewPropsProgressInfo()
  81 {
  82     delete m_viewProps;
  83     m_viewProps = nullptr;
  84 }
  85
  86 void ViewPropsProgressInfo::closeEvent(QCloseEvent* event)
  87 {
  88     m_timer->stop();
  89     m_applyViewPropsJob = nullptr;
  90     QDialog::closeEvent(event);
  91 }
  92
  93 void ViewPropsProgressInfo::reject()
  94 {
  95     if (m_dirSizeJob) {
  96         m_dirSizeJob->kill();
  97         m_dirSizeJob = nullptr;
  98     }
  99
 100     if (m_applyViewPropsJob) {
 101         m_applyViewPropsJob->kill();
 102         m_applyViewPropsJob = nullptr;
 103     }
 104
 105     QDialog::reject();
 106 }
 107
 108 void ViewPropsProgressInfo::updateProgress()
 109 {
 110     if (m_dirSizeJob) {
 111         const int subdirs = m_dirSizeJob->totalSubdirs();
 112         m_label->setText(i18nc("@info:progress", "Counting folders: %1", subdirs));
 113     }
 114
 115     if (m_applyViewPropsJob) {
 116         const int progress = m_applyViewPropsJob->progress();
 117         m_progressBar->setValue(progress);
 118     }
 119 }
 120
 121 void ViewPropsProgressInfo::applyViewProperties()
 122 {
 123     if (m_dirSizeJob->error()) {
 124         return;
 125     }
 126
 127     const int subdirs = m_dirSizeJob->totalSubdirs();
 128     m_label->setText(i18nc("@info:progress", "Folders: %1", subdirs));
 129     m_progressBar->setMaximum(subdirs);
 130
 131     m_dirSizeJob = nullptr;
 132
 133     m_applyViewPropsJob = new ApplyViewPropsJob(m_dir, *m_viewProps);
 134     connect(m_applyViewPropsJob, &ApplyViewPropsJob::result,
 135             this, &ViewPropsProgressInfo::close);
 136 }
 137