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50
51 #include "downloadwidget.h"
52
53 #include <QFileInfo>
54 #include <QUrl>
55 #include <QWebEngineDownloadItem>
56
DownloadWidget(QWebEngineDownloadItem * download,QWidget * parent)57 DownloadWidget::DownloadWidget(QWebEngineDownloadItem *download, QWidget *parent)
58 : QFrame(parent)
59 , m_download(download)
60 , m_timeAdded(QTime::currentTime())
61 {
62 setupUi(this);
63 m_dstName->setText(QFileInfo(m_download->path()).fileName());
64 m_srcUrl->setText(m_download->url().toDisplayString());
65
66 connect(m_cancelButton, &QPushButton::clicked,
67 [this](bool) {
68 if (m_download->state() == QWebEngineDownloadItem::DownloadInProgress)
69 m_download->cancel();
70 else
71 emit removeClicked(this);
72 });
73
74 connect(m_download, &QWebEngineDownloadItem::downloadProgress,
75 this, &DownloadWidget::updateWidget);
76
77 connect(m_download, &QWebEngineDownloadItem::stateChanged,
78 this, &DownloadWidget::updateWidget);
79
80 updateWidget();
81 }
82
withUnit(qreal bytes)83 inline QString DownloadWidget::withUnit(qreal bytes)
84 {
85 if (bytes < (1 << 10))
86 return tr("%L1 B").arg(bytes);
87 else if (bytes < (1 << 20))
88 return tr("%L1 KiB").arg(bytes / (1 << 10), 0, 'f', 2);
89 else if (bytes < (1 << 30))
90 return tr("%L1 MiB").arg(bytes / (1 << 20), 0, 'f', 2);
91 else
92 return tr("%L1 GiB").arg(bytes / (1 << 30), 0, 'f', 2);
93 }
94
updateWidget()95 void DownloadWidget::updateWidget()
96 {
97 qreal totalBytes = m_download->totalBytes();
98 qreal receivedBytes = m_download->receivedBytes();
99 qreal bytesPerSecond = receivedBytes / m_timeAdded.elapsed() * 1000;
100
101 auto state = m_download->state();
102 switch (state) {
103 case QWebEngineDownloadItem::DownloadRequested:
104 Q_UNREACHABLE();
105 break;
106 case QWebEngineDownloadItem::DownloadInProgress:
107 if (totalBytes >= 0) {
108 m_progressBar->setValue(qRound(100 * receivedBytes / totalBytes));
109 m_progressBar->setDisabled(false);
110 m_progressBar->setFormat(
111 tr("%p% - %1 of %2 downloaded - %3/s")
112 .arg(withUnit(receivedBytes))
113 .arg(withUnit(totalBytes))
114 .arg(withUnit(bytesPerSecond)));
115 } else {
116 m_progressBar->setValue(0);
117 m_progressBar->setDisabled(false);
118 m_progressBar->setFormat(
119 tr("unknown size - %1 downloaded - %2/s")
120 .arg(withUnit(receivedBytes))
121 .arg(withUnit(bytesPerSecond)));
122 }
123 break;
124 case QWebEngineDownloadItem::DownloadCompleted:
125 m_progressBar->setValue(100);
126 m_progressBar->setDisabled(true);
127 m_progressBar->setFormat(
128 tr("completed - %1 downloaded - %2/s")
129 .arg(withUnit(receivedBytes))
130 .arg(withUnit(bytesPerSecond)));
131 break;
132 case QWebEngineDownloadItem::DownloadCancelled:
133 m_progressBar->setValue(0);
134 m_progressBar->setDisabled(true);
135 m_progressBar->setFormat(
136 tr("cancelled - %1 downloaded - %2/s")
137 .arg(withUnit(receivedBytes))
138 .arg(withUnit(bytesPerSecond)));
139 break;
140 case QWebEngineDownloadItem::DownloadInterrupted:
141 m_progressBar->setValue(0);
142 m_progressBar->setDisabled(true);
143 m_progressBar->setFormat(
144 tr("interrupted: %1")
145 .arg(m_download->interruptReasonString()));
146 break;
147 }
148
149 if (state == QWebEngineDownloadItem::DownloadInProgress) {
150 static QIcon cancelIcon(QStringLiteral(":process-stop.png"));
151 m_cancelButton->setIcon(cancelIcon);
152 m_cancelButton->setToolTip(tr("Stop downloading"));
153 } else {
154 static QIcon removeIcon(QStringLiteral(":edit-clear.png"));
155 m_cancelButton->setIcon(removeIcon);
156 m_cancelButton->setToolTip(tr("Remove from list"));
157 }
158 }
159