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