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