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FrmDownload.cpp
1// Author: Kang Lin <kl222@126.com>
2
3#include <QContextMenuEvent>
4#include <QApplication>
5#include <QClipboard>
6#include <QMimeData>
7#include <QHBoxLayout>
8#include <QVBoxLayout>
9#include <QLoggingCategory>
10#include <QDesktopServices>
11#include <QUrl>
12#include <QFileInfo>
13#include <QDir>
14#include "FrmDownload.h"
15#include "Stats.h"
16#include "RabbitCommonTools.h"
17#include "ui_FrmDownload.h"
18
19static Q_LOGGING_CATEGORY(log, "WebBrowser.Download")
20CFrmDownload::CFrmDownload(QWebEngineDownloadRequest *downalod, QWidget *parent)
21 : QFrame(parent)
22 , ui(new Ui::CFrmDownload)
23 , m_pDownload(downalod)
24{
25 bool check = false;
26 qDebug(log) << Q_FUNC_INFO;
27 ui->setupUi(this);
28 ui->pbButton->setText(QString());
29 ui->lbFileInfo->hide();
30
31 setContextMenuPolicy(Qt::CustomContextMenu);
32 check = connect(this, &QFrame::customContextMenuRequested,
33 this, &CFrmDownload::slotCustomContextMenuRequested);
34 Q_ASSERT(check);
35
36 if(m_pDownload) {
37#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
38 ui->lbTitle->setText(m_pDownload->downloadFileName());
39#else
40 QFileInfo fi(m_pDownload->path());
41 ui->lbTitle->setText(fi.fileName());
42#endif
43 ui->progressBar->setValue(0);
44
45#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
46 check = connect(m_pDownload, &QWebEngineDownloadRequest::totalBytesChanged, this, &CFrmDownload::slotUpdateWidget);
47 Q_ASSERT(check);
48 check = connect(m_pDownload, &QWebEngineDownloadRequest::receivedBytesChanged, this, &CFrmDownload::slotUpdateWidget);
49 Q_ASSERT(check);
50#else
51 check = connect(m_pDownload, &QWebEngineDownloadRequest::downloadProgress, this, &CFrmDownload::slotUpdateWidget);
52 Q_ASSERT(check);
53#endif
54 check = connect(m_pDownload, &QWebEngineDownloadRequest::stateChanged,
55 this, &CFrmDownload::slotUpdateWidget);
56 Q_ASSERT(check);
57 }
58
59 m_timeAdded.start();
60 slotUpdateWidget();
61}
62
63CFrmDownload::~CFrmDownload()
64{
65 qDebug(log) << Q_FUNC_INFO;
66 delete ui;
67}
68
69void CFrmDownload::on_pbButton_clicked()
70{
71 switch(m_pDownload->state()) {
72 case QWebEngineDownloadRequest::DownloadRequested:
73 case QWebEngineDownloadRequest::DownloadInProgress: {
74 m_pDownload->cancel();
75 break;
76 }
77 case QWebEngineDownloadRequest::DownloadCancelled:
78 case QWebEngineDownloadRequest::DownloadInterrupted: {
79 m_pDownload->resume();
80 ui->lbFileInfo->hide();
81 break;
82 }
83 case QWebEngineDownloadRequest::DownloadCompleted: {
84 RabbitCommon::CTools::LocateFileWithExplorer(
85 QDir(m_pDownload->downloadDirectory()).filePath(m_pDownload->downloadFileName()));
86 break;
87 }
88 default: {
89 emit sigRemoveClicked(this);
90 }
91 }
92}
93
94void CFrmDownload::slotUpdateWidget()
95{
96 if(!m_pDownload) return;
97 qreal totalBytes = m_pDownload->totalBytes();
98 qreal receivedBytes = m_pDownload->receivedBytes();
99 qreal bytesPerSecond = 0; // Initialized to 0 for a reasonable default value
100
101 // Check for division by zero
102 if (m_timeAdded.elapsed() != 0)
103 bytesPerSecond = receivedBytes / m_timeAdded.elapsed() * 1000;
104
105 auto state = m_pDownload->state();
106 switch (state) {
107 case QWebEngineDownloadRequest::DownloadRequested:
108 ui->progressBar->setDisabled(false);
109 m_pDownload->accept();
110 break;
111 case QWebEngineDownloadRequest::DownloadInProgress:
112 if (totalBytes > 0) {
113 ui->progressBar->setValue(qRound(100 * receivedBytes / totalBytes));
114 ui->progressBar->setDisabled(false);
115 ui->progressBar->setFormat(
116 tr("%p% - %1 of %2 downloaded - %3/s")
117 .arg(CStats::Convertbytes(receivedBytes), CStats::Convertbytes(totalBytes),
118 CStats::Convertbytes(bytesPerSecond)));
119 } else {
120 ui->progressBar->setValue(0);
121 ui->progressBar->setDisabled(false);
122 ui->progressBar->setFormat(
123 tr("unknown size - %1 downloaded - %2/s")
124 .arg(CStats::Convertbytes(receivedBytes), CStats::Convertbytes(bytesPerSecond)));
125 }
126 break;
127 case QWebEngineDownloadRequest::DownloadCompleted:
128 ui->progressBar->setValue(100);
129 ui->progressBar->setDisabled(true);
130 ui->progressBar->setFormat(
131 tr("completed - %1 downloaded - %2/s")
132 .arg(CStats::Convertbytes(receivedBytes), CStats::Convertbytes(bytesPerSecond)));
133 break;
134 case QWebEngineDownloadRequest::DownloadCancelled:
135 ui->progressBar->setValue(0);
136 ui->progressBar->setDisabled(true);
137 ui->progressBar->setFormat(
138 tr("cancelled - %1 downloaded - %2/s")
139 .arg(CStats::Convertbytes(receivedBytes), CStats::Convertbytes(bytesPerSecond)));
140 break;
141 case QWebEngineDownloadRequest::DownloadInterrupted:
142 ui->progressBar->setValue(0);
143 ui->progressBar->setDisabled(true);
144 ui->progressBar->setFormat(
145 tr("interrupted: %1")
146 .arg(m_pDownload->interruptReasonString()));
147 break;
148 }
149
150 switch(state) {
151 case QWebEngineDownloadRequest::DownloadRequested:
152 case QWebEngineDownloadRequest::DownloadInProgress: {
153 static QIcon cancelIcon(QIcon::fromTheme("media-playback-stop"));
154 ui->pbButton->setIcon(cancelIcon);
155 ui->pbButton->setToolTip(tr("Stop downloading"));
156 break;
157 }
158 case QWebEngineDownloadRequest::DownloadCancelled:
159 case QWebEngineDownloadRequest::DownloadInterrupted: {
160 static QIcon cancelIcon(QIcon::fromTheme("view-refresh"));
161 ui->pbButton->setIcon(cancelIcon);
162 ui->pbButton->setToolTip(tr("Resumes downloading"));
163 ui->lbFileInfo->setText(m_pDownload->interruptReasonString());
164 ui->lbFileInfo->show();
165 break;
166 }
167 case QWebEngineDownloadRequest::DownloadCompleted: {
168 static QIcon cancelIcon(QIcon::fromTheme("folder-open"));
169 ui->pbButton->setIcon(cancelIcon);
170 ui->pbButton->setToolTip(tr("Show in folder"));
171 ui->progressBar->hide();
172 ui->lbFileInfo->setText(tr("Completed") + " - "
173 + CStats::Convertbytes(m_pDownload->totalBytes()));
174 ui->lbFileInfo->show();
175 QString szFile;
176#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
177 QDir d(m_pDownload->downloadDirectory());
178 szFile = d.absoluteFilePath(m_pDownload->downloadFileName());
179#else
180 szFile = m_pDownload->path();
181#endif
182 m_FileWatcher.addPath(szFile);
183 connect(&m_FileWatcher, &QFileSystemWatcher::fileChanged,
184 [&](const QString &path) {
185 QFile f(path);
186 if(!f.exists()) {
187 ui->lbFileInfo->setText(tr("The file has been deleted."));
188 ui->lbFileInfo->show();
189 ui->pbButton->hide();
190 }
191 });
192 break;
193 }
194 }
195}
196
197void CFrmDownload::slotCustomContextMenuRequested(const QPoint &pos)
198{
199 qDebug(log) << Q_FUNC_INFO;
200 QString szFile;
201#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
202 QDir d(m_pDownload->downloadDirectory());
203 szFile = d.absoluteFilePath(m_pDownload->downloadFileName());
204#else
205 szFile = m_pDownload->path();
206#endif
207 QFile downloadFile(szFile);
208 QMenu menu(this);
209 if(downloadFile.exists()) {
210 menu.addAction(QIcon::fromTheme("folder-open"), tr("Show in folder"),
211 this, [this, szFile](){
212 if(!m_pDownload) return;
213 RabbitCommon::CTools::LocateFileWithExplorer(
214 QDir(m_pDownload->downloadDirectory()).filePath(m_pDownload->downloadFileName()));
215 });
216 menu.addAction(QIcon::fromTheme("file-open"), tr("Open the file with the associated program"),
217 this, [this, szFile](){
218 if(!m_pDownload) return;
219 QDesktopServices::openUrl(QUrl::fromLocalFile(szFile));
220 });
221 }
222 menu.addAction(QIcon::fromTheme("edit-copy"), tr("Copy url to clipboard"),
223 this, [&](){
224 if(m_pDownload && QApplication::clipboard()) {
225 QApplication::clipboard()->setText(m_pDownload->url().toString());
226 }
227 });
228 menu.addAction(QIcon::fromTheme("list-remove"), tr("Remove from list"),
229 this, [&](){
230 emit sigRemoveClicked(this);
231 });
232 if(downloadFile.exists()) {
233 menu.addAction(QIcon::fromTheme("edit-delete"), tr("Delete"),
234 this, [&](){
235#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
236 QDir d(m_pDownload->downloadDirectory());
237 if(!d.remove(m_pDownload->downloadFileName()))
238 qCritical(log) << "Remove file fail." << d.absoluteFilePath(m_pDownload->downloadFileName());
239#else
240 QFile f(m_pDownload->path());
241 if(!f.remove())
242 qCritical(log) << "Remove file fail." << f.fileName();
243#endif
244 emit sigRemoveClicked(this);
245 });
246 }
247 QPoint p = pos;
248 QWidget* pW = qobject_cast<QWidget*>(sender());
249 if(pW)
250 p = pW->mapToGlobal(pos);
251 menu.exec(p);
252}
253
254void CFrmDownload::mouseDoubleClickEvent(QMouseEvent *event)
255{
256 qDebug(log) << Q_FUNC_INFO;
257 if(!m_pDownload) return;
258 QString szFile;
259#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
260 QDir d(m_pDownload->downloadDirectory());
261 szFile = d.absoluteFilePath(m_pDownload->downloadFileName());
262#else
263 szFile = m_pDownload->path();
264#endif
265 QDesktopServices::openUrl(QUrl::fromLocalFile(szFile));
266}
267
268void CFrmDownload::mouseReleaseEvent(QMouseEvent *event)
269{
270 qDebug(log) << Q_FUNC_INFO;
271 emit sigSelected(this);
272}
作者：康林 (kl222@126.com)

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