QWebEngineDownloadItem Class

The QWebEngineDownloadItem class provides information about a download. More...

Header: #include <QWebEngineDownloadItem>
qmake: QT += webenginewidgets
Since: Qt 5.5
Inherits: QObject

Public Types

enum DownloadState { DownloadRequested, DownloadInProgress, DownloadCompleted, DownloadCancelled, DownloadInterrupted }
enum DownloadType { Attachment, DownloadAttribute, UserRequested, SavePage }
enum SavePageFormat { UnknownSaveFormat, SingleHtmlSaveFormat, CompleteHtmlSaveFormat, MimeHtmlSaveFormat }

Public Functions

quint32 id() const
bool isFinished() const
QString mimeType() const
QString path() const
qint64 receivedBytes() const
SavePageFormat savePageFormat() const
void setPath(QString path)
void setSavePageFormat(SavePageFormat format)
DownloadState state() const
qint64 totalBytes() const
DownloadType type() const
QUrl url() const
  • 31 public functions inherited from QObject

Public Slots

void accept()
void cancel()
  • 1 public slot inherited from QObject


void downloadProgress(qint64 bytesReceived, qint64 bytesTotal)
void finished()
void stateChanged(QWebEngineDownloadItem::DownloadState state)

Additional Inherited Members

  • 1 property inherited from QObject
  • 11 static public members inherited from QObject
  • 9 protected functions inherited from QObject

Detailed Description

The QWebEngineDownloadItem class provides information about a download.

QWebEngineDownloadItem stores the state of a download to be used to manage requested downloads.

Member Type Documentation

enum QWebEngineDownloadItem::DownloadState

This enum describes the state of the download:

QWebEngineDownloadItem::DownloadRequested0Download has been requested, but has not been accepted yet.
QWebEngineDownloadItem::DownloadInProgress1Download is in progress.
QWebEngineDownloadItem::DownloadCompleted2Download completed successfully.
QWebEngineDownloadItem::DownloadCancelled3Download has been cancelled.
QWebEngineDownloadItem::DownloadInterrupted4Download has been interrupted (by the server or because of lost connectivity).

enum QWebEngineDownloadItem::DownloadType

Describes the requested download's type.

QWebEngineDownloadItem::Attachment0The web server's response includes a Content-Disposition header with the attachment directive. If Content-Disposition is present in the reply, the web server is indicating that the client should prompt the user to save the content regardless of the content type. See RFC 2616 section 19.5.1 for details.
QWebEngineDownloadItem::DownloadAttribute1The user clicked a link with the download attribute. See HTML download attribute for details.
QWebEngineDownloadItem::UserRequested2The user initiated the download, for example by selecting a web action.
QWebEngineDownloadItem::SavePage3Saving of the current page was requested (for example by the QWebEnginePage::SavePage web action).

This enum was introduced or modified in Qt 5.8.

enum QWebEngineDownloadItem::SavePageFormat

This enum describes the format that is used to save a web page.

QWebEngineDownloadItem::UnknownSaveFormat-1This is not a request for downloading a complete web page.
QWebEngineDownloadItem::SingleHtmlSaveFormat0The page is saved as a single HTML page. Resources such as images are not saved.
QWebEngineDownloadItem::CompleteHtmlSaveFormat1The page is saved as a complete HTML page, for example a directory containing the single HTML page and the resources.
QWebEngineDownloadItem::MimeHtmlSaveFormat2The page is saved as a complete web page in the MIME HTML format.

This enum was introduced or modified in Qt 5.7.

Member Function Documentation

[slot] void QWebEngineDownloadItem::accept()

Accepts the current download request, which will start the download.

See also finished() and stateChanged().

[slot] void QWebEngineDownloadItem::cancel()

Cancels the current download.

See also finished() and stateChanged().

[signal] void QWebEngineDownloadItem::downloadProgress(qint64 bytesReceived, qint64 bytesTotal)

This signal is emitted whenever the download's bytesReceived or bytesTotal changes.

See also totalBytes() and receivedBytes().

[signal] void QWebEngineDownloadItem::finished()

This signal is emitted whenever the download finishes.

See also state() and isFinished().

quint32 QWebEngineDownloadItem::id() const

Returns the download item's ID.

bool QWebEngineDownloadItem::isFinished() const

Returns whether this download is finished (not in progress).

See also finished() and state().

QString QWebEngineDownloadItem::mimeType() const

Returns the MIME type of the download.

This function was introduced in Qt 5.6.

QString QWebEngineDownloadItem::path() const

Returns the full target path where data is being downloaded to.

The path includes the file name. The default suggested path is the standard download location and file name is deduced not to overwrite already existing files.

See also setPath().

qint64 QWebEngineDownloadItem::receivedBytes() const

Returns the amount of data in bytes that has been downloaded so far.

-1 means the size is unknown.

SavePageFormat QWebEngineDownloadItem::savePageFormat() const

Returns the format the web page will be saved in if this is a download request for a web page.

This function was introduced in Qt 5.7.

See also setSavePageFormat().

void QWebEngineDownloadItem::setPath(QString path)

Sets the full target path to download the file to.

The path should also include the file name. The download path can only be set in response to the QWebEngineProfile::downloadRequested() signal before the download is accepted. Past that point, this function has no effect on the download item's state.

See also path().

void QWebEngineDownloadItem::setSavePageFormat(SavePageFormat format)

Sets the format the web page will be saved in if this is a download request for a web page.

This function was introduced in Qt 5.7.

See also savePageFormat().

DownloadState QWebEngineDownloadItem::state() const

Returns the download item's current state.

See also QWebEngineDownloadItem::DownloadState.

[signal] void QWebEngineDownloadItem::stateChanged(QWebEngineDownloadItem::DownloadState state)

This signal is emitted whenever the download's state changes.

See also state() and QWebEngineDownloadItem::DownloadState.

qint64 QWebEngineDownloadItem::totalBytes() const

Returns the the total amount of data to download in bytes.

-1 means the size is unknown.

DownloadType QWebEngineDownloadItem::type() const

Returns the requested download's type.

This function was introduced in Qt 5.8.

QUrl QWebEngineDownloadItem::url() const

Returns the download's origin URL.

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