1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "downloadwidget.h"
#include <QFileInfo>
#include <QUrl>
#include <QWebEngineDownloadRequest>
using namespace Qt::StringLiterals;
DownloadWidget::DownloadWidget(QWebEngineDownloadRequest *download, QWidget *parent)
: QFrame(parent)
, m_download(download)
, m_timeAdded()
{
m_timeAdded.start();
setupUi(this);
m_dstName->setText(m_download->downloadFileName());
m_srcUrl->setText(m_download->url().toDisplayString());
connect(m_cancelButton, &QPushButton::clicked,
[this](bool) {
if (m_download->state() == QWebEngineDownloadRequest::DownloadInProgress)
m_download->cancel();
else
emit removeClicked(this);
});
connect(m_download, &QWebEngineDownloadRequest::totalBytesChanged, this, &DownloadWidget::updateWidget);
connect(m_download, &QWebEngineDownloadRequest::receivedBytesChanged, this, &DownloadWidget::updateWidget);
connect(m_download, &QWebEngineDownloadRequest::stateChanged,
this, &DownloadWidget::updateWidget);
updateWidget();
}
inline QString DownloadWidget::withUnit(qreal bytes)
{
if (bytes < (1 << 10))
return tr("%L1 B").arg(bytes);
if (bytes < (1 << 20))
return tr("%L1 KiB").arg(bytes / (1 << 10), 0, 'f', 2);
if (bytes < (1 << 30))
return tr("%L1 MiB").arg(bytes / (1 << 20), 0, 'f', 2);
return tr("%L1 GiB").arg(bytes / (1 << 30), 0, 'f', 2);
}
void DownloadWidget::updateWidget()
{
qreal totalBytes = m_download->totalBytes();
qreal receivedBytes = m_download->receivedBytes();
qreal bytesPerSecond = 0; // Initialized to 0 for a reasonable default value
// Check for division by zero
if (m_timeAdded.elapsed() != 0)
bytesPerSecond = receivedBytes / m_timeAdded.elapsed() * 1000;
auto state = m_download->state();
switch (state) {
case QWebEngineDownloadRequest::DownloadRequested:
Q_UNREACHABLE();
break;
case QWebEngineDownloadRequest::DownloadInProgress:
if (totalBytes > 0) {
m_progressBar->setValue(qRound(100 * receivedBytes / totalBytes));
m_progressBar->setDisabled(false);
m_progressBar->setFormat(
tr("%p% - %1 of %2 downloaded - %3/s")
.arg(withUnit(receivedBytes), withUnit(totalBytes),
withUnit(bytesPerSecond)));
} else {
m_progressBar->setValue(0);
m_progressBar->setDisabled(false);
m_progressBar->setFormat(
tr("unknown size - %1 downloaded - %2/s")
.arg(withUnit(receivedBytes), withUnit(bytesPerSecond)));
}
break;
case QWebEngineDownloadRequest::DownloadCompleted:
m_progressBar->setValue(100);
m_progressBar->setDisabled(true);
m_progressBar->setFormat(
tr("completed - %1 downloaded - %2/s")
.arg(withUnit(receivedBytes), withUnit(bytesPerSecond)));
break;
case QWebEngineDownloadRequest::DownloadCancelled:
m_progressBar->setValue(0);
m_progressBar->setDisabled(true);
m_progressBar->setFormat(
tr("cancelled - %1 downloaded - %2/s")
.arg(withUnit(receivedBytes), withUnit(bytesPerSecond)));
break;
case QWebEngineDownloadRequest::DownloadInterrupted:
m_progressBar->setValue(0);
m_progressBar->setDisabled(true);
m_progressBar->setFormat(
tr("interrupted: %1")
.arg(m_download->interruptReasonString()));
break;
}
if (state == QWebEngineDownloadRequest::DownloadInProgress) {
static QIcon cancelIcon(QIcon::fromTheme(QIcon::ThemeIcon::ProcessStop,
QIcon(":process-stop.png"_L1)));
m_cancelButton->setIcon(cancelIcon);
m_cancelButton->setToolTip(tr("Stop downloading"));
} else {
static QIcon removeIcon(QIcon::fromTheme(QIcon::ThemeIcon::EditClear,
QIcon(":edit-clear.png"_L1)));
m_cancelButton->setIcon(removeIcon);
m_cancelButton->setToolTip(tr("Remove from list"));
}
}
|
