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     setLayout(layout);
  48
  49     m_label = new QLabel(i18nc("@info:progress", "Counting folders: %1", 0), this);
  50     layout->addWidget(m_label);
  51
  52     m_progressBar = new QProgressBar(this);
  53     m_progressBar->setMinimum(0);
  54     m_progressBar->setMaximum(0);
  55     m_progressBar->setValue(0);
  56     layout->addWidget(m_progressBar);
  57
  58     layout->addStretch();
  59
  60     auto buttonBox = new QDialogButtonBox(QDialogButtonBox::Cancel, this);
  61     connect(buttonBox, &QDialogButtonBox::accepted, this, &ViewPropsProgressInfo::accept);
  62     connect(buttonBox, &QDialogButtonBox::rejected, this, &ViewPropsProgressInfo::reject);
  63     layout->addWidget(buttonBox);
  64
  65     // Use the directory size job to count the number of directories first. This
  66     // allows to give a progress indication for the user when applying the view
  67     // properties later.
  68     m_dirSizeJob = KIO::directorySize(dir);
  69     connect(m_dirSizeJob, &KIO::DirectorySizeJob::result,
  70             this, &ViewPropsProgressInfo::applyViewProperties);
  71
  72     // The directory size job cannot emit any progress signal, as it is not aware
  73     // about the total number of directories. Therefor a timer is triggered, which
  74     // periodically updates the current directory count.
  75     m_timer = new QTimer(this);
  76     connect(m_timer, &QTimer::timeout,
  77             this, &ViewPropsProgressInfo::updateProgress);
  78     m_timer->start(300);
  79 }
  80
  81 ViewPropsProgressInfo::~ViewPropsProgressInfo()
  82 {
  83     delete m_viewProps;
  84     m_viewProps = nullptr;
  85 }
  86
  87 void ViewPropsProgressInfo::closeEvent(QCloseEvent* event)
  88 {
  89     m_timer->stop();
  90     m_applyViewPropsJob = nullptr;
  91     QDialog::closeEvent(event);
  92 }
  93
  94 void ViewPropsProgressInfo::reject()
  95 {
  96     if (m_dirSizeJob) {
  97         m_dirSizeJob->kill();
  98         m_dirSizeJob = nullptr;
  99     }
 100
 101     if (m_applyViewPropsJob) {
 102         m_applyViewPropsJob->kill();
 103         m_applyViewPropsJob = nullptr;
 104     }
 105
 106     QDialog::reject();
 107 }
 108
 109 void ViewPropsProgressInfo::updateProgress()
 110 {
 111     if (m_dirSizeJob) {
 112         const int subdirs = m_dirSizeJob->totalSubdirs();
 113         m_label->setText(i18nc("@info:progress", "Counting folders: %1", subdirs));
 114     }
 115
 116     if (m_applyViewPropsJob) {
 117         const int progress = m_applyViewPropsJob->progress();
 118         m_progressBar->setValue(progress);
 119     }
 120 }
 121
 122 void ViewPropsProgressInfo::applyViewProperties()
 123 {
 124     if (m_dirSizeJob->error()) {
 125         return;
 126     }
 127
 128     const int subdirs = m_dirSizeJob->totalSubdirs();
 129     m_label->setText(i18nc("@info:progress", "Folders: %1", subdirs));
 130     m_progressBar->setMaximum(subdirs);
 131
 132     m_dirSizeJob = nullptr;
 133
 134     m_applyViewPropsJob = new ApplyViewPropsJob(m_dir, *m_viewProps);
 135     connect(m_applyViewPropsJob, &ApplyViewPropsJob::result,
 136             this, &ViewPropsProgressInfo::close);
 137 }
 138