Add DownloadInterruptReason to Q(Quick)WebEngineDownloadItem

Add enum DownloadInterruptReason to BrowserContextAdapterClient,
QWebEngineDownloadItem and QQuickWebEngineDownloadItem. Also add
corresponding attributes to
BrowserContextAdapterClient::DownloadItemInfo,
QWebEngineDownloadItemPrivate and QQuickWebEngineDownloadItemPrivate
as well as getters in QWebEngineDownloadItem and
QQuickWebEngineDownloadItem and interruptReasonChanged signals.

Task-number: QTBUG-56839
Change-Id: I937c14ba0b0884b14ae18ba297024b76dde62605
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

9 files changed, 319 insertions, 3 deletions

diff --git a/src/core/browser_context_adapter_client.h b/src/core/browser_context_adapter_client.h
index faba08591..1eabbe7a0 100644
--- a/src/core/browser_context_adapter_client.h
+++ b/src/core/browser_context_adapter_client.h
@@ -76,6 +76,36 @@ public:
         SavePage
     };
 
+    enum DownloadInterruptReason {
+        NoReason = 0,
+        FileFailed = 1,
+        FileAccessDenied = 2,
+        FileNoSpace = 3,
+        FileNameTooLong = 5,
+        FileTooLarge = 6,
+        FileVirusInfected = 7,
+        FileTransientError = 10,
+        FileBlocked = 11,
+        FileSecurityCheckFailed = 12,
+        FileTooShort = 13,
+        FileHashMismatch = 14,
+        NetworkFailed = 20,
+        NetworkTimeout = 21,
+        NetworkDisconnected = 22,
+        NetworkServerDown = 23,
+        NetworkInvalidRequest = 24,
+        ServerFailed = 30,
+        //ServerNoRange = 31,
+        ServerBadContent = 33,
+        ServerUnauthorized = 34,
+        ServerCertProblem = 35,
+        ServerForbidden = 36,
+        ServerUnreachable = 37,
+        UserCanceled = 40,
+        //UserShutdown = 41,
+        //Crash = 50
+    };
+
     struct DownloadItemInfo {
         const quint32 id;
         const QUrl url;
@@ -88,6 +118,7 @@ public:
         int savePageFormat;
         bool accepted;
         int downloadType;
+        int downloadInterruptReason;
     };
 
     virtual ~BrowserContextAdapterClient() { }
diff --git a/src/core/download_manager_delegate_qt.cpp b/src/core/download_manager_delegate_qt.cpp
index 2cbfd121b..5018d94aa 100644
--- a/src/core/download_manager_delegate_qt.cpp
+++ b/src/core/download_manager_delegate_qt.cpp
@@ -71,6 +71,34 @@ ASSERT_ENUMS_MATCH(content::SAVE_PAGE_TYPE_AS_ONLY_HTML, BrowserContextAdapterCl
 ASSERT_ENUMS_MATCH(content::SAVE_PAGE_TYPE_AS_COMPLETE_HTML, BrowserContextAdapterClient::CompleteHtmlSaveFormat)
 ASSERT_ENUMS_MATCH(content::SAVE_PAGE_TYPE_AS_MHTML, BrowserContextAdapterClient::MimeHtmlSaveFormat)
 
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_NONE, BrowserContextAdapterClient::NoReason)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_FILE_FAILED, BrowserContextAdapterClient::FileFailed)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_FILE_ACCESS_DENIED, BrowserContextAdapterClient::FileAccessDenied)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_FILE_NO_SPACE, BrowserContextAdapterClient::FileNoSpace)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_FILE_NAME_TOO_LONG, BrowserContextAdapterClient::FileNameTooLong)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_FILE_TOO_LARGE, BrowserContextAdapterClient::FileTooLarge)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_FILE_VIRUS_INFECTED, BrowserContextAdapterClient::FileVirusInfected)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_FILE_TRANSIENT_ERROR, BrowserContextAdapterClient::FileTransientError)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_FILE_BLOCKED, BrowserContextAdapterClient::FileBlocked)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_FILE_SECURITY_CHECK_FAILED, BrowserContextAdapterClient::FileSecurityCheckFailed)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_FILE_TOO_SHORT, BrowserContextAdapterClient::FileTooShort)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_FILE_HASH_MISMATCH, BrowserContextAdapterClient::FileHashMismatch)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_NETWORK_FAILED, BrowserContextAdapterClient::NetworkFailed)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_NETWORK_TIMEOUT, BrowserContextAdapterClient::NetworkTimeout)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_NETWORK_DISCONNECTED, BrowserContextAdapterClient::NetworkDisconnected)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_NETWORK_SERVER_DOWN, BrowserContextAdapterClient::NetworkServerDown)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_NETWORK_INVALID_REQUEST, BrowserContextAdapterClient::NetworkInvalidRequest)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_SERVER_FAILED, BrowserContextAdapterClient::ServerFailed)
+//ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_SERVER_NO_RANGE, BrowserContextAdapterClient::ServerNoRange)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_SERVER_BAD_CONTENT, BrowserContextAdapterClient::ServerBadContent)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_SERVER_UNAUTHORIZED, BrowserContextAdapterClient::ServerUnauthorized)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_SERVER_CERT_PROBLEM, BrowserContextAdapterClient::ServerCertProblem)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_SERVER_FORBIDDEN, BrowserContextAdapterClient::ServerForbidden)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_SERVER_UNREACHABLE, BrowserContextAdapterClient::ServerUnreachable)
+ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_USER_CANCELED, BrowserContextAdapterClient::UserCanceled)
+//ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_USER_SHUTDOWN, BrowserContextAdapterClient::UserShutdown)
+//ASSERT_ENUMS_MATCH(content::DOWNLOAD_INTERRUPT_REASON_CRASH, BrowserContextAdapterClient::Crash)
+
 DownloadManagerDelegateQt::DownloadManagerDelegateQt(BrowserContextAdapter *contextAdapter)
     : m_contextAdapter(contextAdapter)
     , m_currentId(0)
@@ -165,7 +193,8 @@ bool DownloadManagerDelegateQt::DetermineDownloadTarget(content::DownloadItem* i
             suggestedFilePath,
             BrowserContextAdapterClient::UnknownSavePageFormat,
             false /* accepted */,
-            m_downloadType
+            m_downloadType,
+            item->GetLastReason()
         };
 
         Q_FOREACH (BrowserContextAdapterClient *client, clients) {
@@ -254,7 +283,8 @@ void DownloadManagerDelegateQt::ChooseSavePath(content::WebContents *web_content
         suggestedFilePath,
         suggestedSaveFormat,
         acceptedByDefault,
-        BrowserContextAdapterClient::SavePage
+        BrowserContextAdapterClient::SavePage,
+        BrowserContextAdapterClient::NoReason
     };
 
     Q_FOREACH (BrowserContextAdapterClient *client, clients) {
@@ -291,7 +321,8 @@ void DownloadManagerDelegateQt::OnDownloadUpdated(content::DownloadItem *downloa
             QString(),
             BrowserContextAdapterClient::UnknownSavePageFormat,
             true /* accepted */,
-            m_downloadType
+            m_downloadType,
+            download->GetLastReason()
         };
 
         Q_FOREACH (BrowserContextAdapterClient *client, clients) {
diff --git a/src/webengine/api/qquickwebenginedownloaditem.cpp b/src/webengine/api/qquickwebenginedownloaditem.cpp
index 8bf319b85..8a6bd0407 100644
--- a/src/webengine/api/qquickwebenginedownloaditem.cpp
+++ b/src/webengine/api/qquickwebenginedownloaditem.cpp
@@ -45,6 +45,34 @@ using QtWebEngineCore::BrowserContextAdapterClient;
 
 QT_BEGIN_NAMESPACE
 
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::NoReason, QQuickWebEngineDownloadItem::NoReason)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileFailed, QQuickWebEngineDownloadItem::FileFailed)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileAccessDenied, QQuickWebEngineDownloadItem::FileAccessDenied)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileNoSpace, QQuickWebEngineDownloadItem::FileNoSpace)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileNameTooLong, QQuickWebEngineDownloadItem::FileNameTooLong)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileTooLarge, QQuickWebEngineDownloadItem::FileTooLarge)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileVirusInfected, QQuickWebEngineDownloadItem::FileVirusInfected)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileTransientError, QQuickWebEngineDownloadItem::FileTransientError)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileBlocked, QQuickWebEngineDownloadItem::FileBlocked)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileSecurityCheckFailed, QQuickWebEngineDownloadItem::FileSecurityCheckFailed)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileTooShort, QQuickWebEngineDownloadItem::FileTooShort)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileHashMismatch, QQuickWebEngineDownloadItem::FileHashMismatch)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::NetworkFailed, QQuickWebEngineDownloadItem::NetworkFailed)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::NetworkTimeout, QQuickWebEngineDownloadItem::NetworkTimeout)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::NetworkDisconnected, QQuickWebEngineDownloadItem::NetworkDisconnected)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::NetworkServerDown, QQuickWebEngineDownloadItem::NetworkServerDown)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::NetworkInvalidRequest, QQuickWebEngineDownloadItem::NetworkInvalidRequest)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::ServerFailed, QQuickWebEngineDownloadItem::ServerFailed)
+//ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::ServerNoRange, QQuickWebEngineDownloadItem::ServerNoRange)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::ServerBadContent, QQuickWebEngineDownloadItem::ServerBadContent)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::ServerUnauthorized, QQuickWebEngineDownloadItem::ServerUnauthorized)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::ServerCertProblem, QQuickWebEngineDownloadItem::ServerCertProblem)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::ServerForbidden, QQuickWebEngineDownloadItem::ServerForbidden)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::ServerUnreachable, QQuickWebEngineDownloadItem::ServerUnreachable)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::UserCanceled, QQuickWebEngineDownloadItem::UserCanceled)
+//ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::UserShutdown, QQuickWebEngineDownloadItem::UserShutdown)
+//ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::Crash, QQuickWebEngineDownloadItem::Crash)
+
 static inline QQuickWebEngineDownloadItem::DownloadState toDownloadState(int state) {
     switch (state) {
     case BrowserContextAdapterClient::DownloadInProgress:
@@ -61,12 +89,18 @@ static inline QQuickWebEngineDownloadItem::DownloadState toDownloadState(int sta
     }
 }
 
+static inline QQuickWebEngineDownloadItem::DownloadInterruptReason toDownloadInterruptReason(int reason)
+{
+    return static_cast<QQuickWebEngineDownloadItem::DownloadInterruptReason>(reason);
+}
+
 QQuickWebEngineDownloadItemPrivate::QQuickWebEngineDownloadItemPrivate(QQuickWebEngineProfile *p)
     : profile(p)
     , downloadId(-1)
     , downloadState(QQuickWebEngineDownloadItem::DownloadCancelled)
     , savePageFormat(QQuickWebEngineDownloadItem::UnknownSaveFormat)
     , type(QQuickWebEngineDownloadItem::Attachment)
+    , interruptReason(QQuickWebEngineDownloadItem::NoReason)
     , totalBytes(-1)
     , receivedBytes(0)
 {
@@ -97,6 +131,11 @@ void QQuickWebEngineDownloadItemPrivate::update(const BrowserContextAdapterClien
 
     updateState(toDownloadState(info.state));
 
+    if (toDownloadInterruptReason(info.downloadInterruptReason) != interruptReason) {
+        interruptReason = toDownloadInterruptReason(info.downloadInterruptReason);
+        Q_EMIT q->interruptReasonChanged();
+    }
+
     if (info.receivedBytes != receivedBytes) {
         receivedBytes = info.receivedBytes;
         Q_EMIT q->receivedBytesChanged();
@@ -326,6 +365,52 @@ QQuickWebEngineDownloadItem::DownloadType QQuickWebEngineDownloadItem::type() co
     return d->type;
 }
 
+/*!
+    \qmlproperty enumeration WebEngineDownloadItem::interruptReason
+    \readonly
+    \since QtWebEngine 1.6
+
+    Returns the reason why the download was interrupted:
+
+    \value WebEngineDownloadItem.NoReason Unknown reason or not interrupted.
+    \value WebEngineDownloadItem.FileFailed General file operation failure.
+    \value WebEngineDownloadItem.FileAccessDenied The file cannot be written locally, due to access restrictions.
+    \value WebEngineDownloadItem.FileNoSpace Insufficient space on the target drive.
+    \value WebEngineDownloadItem.FileNameTooLong The directory or file name is too long.
+    \value WebEngineDownloadItem.FileTooLarge The file size exceeds the file system limitation.
+    \value WebEngineDownloadItem.FileVirusInfected The file is infected with a virus.
+    \value WebEngineDownloadItem.FileTransientError Temporary problem (for example the file is in use,
+           out of memory, or too many files are opened at once).
+    \value WebEngineDownloadItem.FileBlocked The file was blocked due to local policy.
+    \value WebEngineDownloadItem.FileSecurityCheckFailed An attempt to check the safety of the download
+           failed due to unexpected reasons.
+    \value WebEngineDownloadItem.FileTooShort An attempt was made to seek past the end of a file when
+           opening a file (as part of resuming a previously interrupted download).
+    \value WebEngineDownloadItem.FileHashMismatch The partial file did not match the expected hash.
+
+    \value WebEngineDownloadItem.NetworkFailed General network failure.
+    \value WebEngineDownloadItem.NetworkTimeout The network operation has timed out.
+    \value WebEngineDownloadItem.NetworkDisconnected The network connection has been terminated.
+    \value WebEngineDownloadItem.NetworkServerDown The server has gone down.
+    \value WebEngineDownloadItem.NetworkInvalidRequest The network request was invalid (for example, the
+           original or redirected URL is invalid, has an unsupported scheme, or is disallowed by policy).
+
+    \value WebEngineDownloadItem.ServerFailed General server failure.
+    \value WebEngineDownloadItem.ServerBadContent The server does not have the requested data.
+    \value WebEngineDownloadItem.ServerUnauthorized The server did not authorize access to the resource.
+    \value WebEngineDownloadItem.ServerCertProblem A problem with the server certificate occurred.
+    \value WebEngineDownloadItem.ServerForbidden Access forbidden by the server.
+    \value WebEngineDownloadItem.ServerUnreachable Unexpected server response (might indicate that
+           the responding server may not be the intended server).
+    \value WebEngineDownloadItem.UserCanceled The user canceled the download.
+*/
+
+QQuickWebEngineDownloadItem::DownloadInterruptReason QQuickWebEngineDownloadItem::interruptReason() const
+{
+    Q_D(const QQuickWebEngineDownloadItem);
+    return d->interruptReason;
+}
+
 QQuickWebEngineDownloadItem::QQuickWebEngineDownloadItem(QQuickWebEngineDownloadItemPrivate *p, QObject *parent)
     : QObject(parent)
     , d_ptr(p)
diff --git a/src/webengine/api/qquickwebenginedownloaditem_p.h b/src/webengine/api/qquickwebenginedownloaditem_p.h
index 61e019b9e..ee7ade6e7 100644
--- a/src/webengine/api/qquickwebenginedownloaditem_p.h
+++ b/src/webengine/api/qquickwebenginedownloaditem_p.h
@@ -82,6 +82,37 @@ public:
     };
     Q_ENUM(SavePageFormat)
 
+    enum DownloadInterruptReason {
+        NoReason = 0,
+        FileFailed = 1,
+        FileAccessDenied = 2,
+        FileNoSpace = 3,
+        FileNameTooLong = 5,
+        FileTooLarge = 6,
+        FileVirusInfected = 7,
+        FileTransientError = 10,
+        FileBlocked = 11,
+        FileSecurityCheckFailed = 12,
+        FileTooShort = 13,
+        FileHashMismatch = 14,
+        NetworkFailed = 20,
+        NetworkTimeout = 21,
+        NetworkDisconnected = 22,
+        NetworkServerDown = 23,
+        NetworkInvalidRequest = 24,
+        ServerFailed = 30,
+        //ServerNoRange = 31,
+        ServerBadContent = 33,
+        ServerUnauthorized = 34,
+        ServerCertProblem = 35,
+        ServerForbidden = 36,
+        ServerUnreachable = 37,
+        UserCanceled = 40,
+        //UserShutdown = 41,
+        //Crash = 50
+    };
+    Q_ENUM(DownloadInterruptReason)
+
     enum DownloadType {
         Attachment = 0,
         DownloadAttribute,
@@ -98,6 +129,7 @@ public:
     Q_PROPERTY(QString mimeType READ mimeType NOTIFY mimeTypeChanged REVISION 1)
     Q_PROPERTY(QString path READ path WRITE setPath NOTIFY pathChanged)
     Q_PROPERTY(DownloadType type READ type NOTIFY typeChanged REVISION 3 FINAL)
+    Q_PROPERTY(DownloadInterruptReason interruptReason READ interruptReason NOTIFY interruptReasonChanged REVISION 4 FINAL)
 
     Q_INVOKABLE void accept();
     Q_INVOKABLE void cancel();
@@ -112,6 +144,7 @@ public:
     SavePageFormat savePageFormat() const;
     void setSavePageFormat(SavePageFormat format);
     DownloadType type() const;
+    DownloadInterruptReason interruptReason() const;
 
 Q_SIGNALS:
     void stateChanged();
@@ -121,6 +154,7 @@ Q_SIGNALS:
     Q_REVISION(1) void mimeTypeChanged();
     void pathChanged();
     Q_REVISION(3) void typeChanged();
+    Q_REVISION(4) void interruptReasonChanged();
 
 private:
     QQuickWebEngineDownloadItem(QQuickWebEngineDownloadItemPrivate*, QObject *parent = 0);
diff --git a/src/webengine/api/qquickwebenginedownloaditem_p_p.h b/src/webengine/api/qquickwebenginedownloaditem_p_p.h
index 1789af462..4fb609492 100644
--- a/src/webengine/api/qquickwebenginedownloaditem_p_p.h
+++ b/src/webengine/api/qquickwebenginedownloaditem_p_p.h
@@ -74,6 +74,7 @@ public:
     QQuickWebEngineDownloadItem::DownloadState downloadState;
     QQuickWebEngineDownloadItem::SavePageFormat savePageFormat;
     QQuickWebEngineDownloadItem::DownloadType type;
+    QQuickWebEngineDownloadItem::DownloadInterruptReason interruptReason;
     qint64 totalBytes;
     qint64 receivedBytes;
     QString mimeType;
diff --git a/src/webengine/plugin/plugin.cpp b/src/webengine/plugin/plugin.cpp
index f8f790061..49f7b38a8 100644
--- a/src/webengine/plugin/plugin.cpp
+++ b/src/webengine/plugin/plugin.cpp
@@ -98,6 +98,8 @@ public:
             tr("Cannot create a separate instance of WebEngineDownloadItem"));
         qmlRegisterUncreatableType<QQuickWebEngineDownloadItem, 3>(uri, 1, 4, "WebEngineDownloadItem",
             tr("Cannot create a separate instance of WebEngineDownloadItem"));
+        qmlRegisterUncreatableType<QQuickWebEngineDownloadItem, 4>(uri, 1, 5, "WebEngineDownloadItem",
+            tr("Cannot create a separate instance of WebEngineDownloadItem"));
         qmlRegisterUncreatableType<QQuickWebEngineNewViewRequest>(uri, 1, 1, "WebEngineNewViewRequest", msgUncreatableType("WebEngineNewViewRequest"));
         qmlRegisterUncreatableType<QQuickWebEngineSettings>(uri, 1, 1, "WebEngineSettings", tr("Cannot create a separate instance of WebEngineSettings"));
         qmlRegisterUncreatableType<QQuickWebEngineSettings, 1>(uri, 1, 2, "WebEngineSettings", tr("Cannot create a separate instance of WebEngineSettings"));
diff --git a/src/webenginewidgets/api/qwebenginedownloaditem.cpp b/src/webenginewidgets/api/qwebenginedownloaditem.cpp
index b777a0898..4a3371904 100644
--- a/src/webenginewidgets/api/qwebenginedownloaditem.cpp
+++ b/src/webenginewidgets/api/qwebenginedownloaditem.cpp
@@ -46,6 +46,34 @@ QT_BEGIN_NAMESPACE
 
 using QtWebEngineCore::BrowserContextAdapterClient;
 
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::NoReason, QWebEngineDownloadItem::NoReason)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileFailed, QWebEngineDownloadItem::FileFailed)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileAccessDenied, QWebEngineDownloadItem::FileAccessDenied)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileNoSpace, QWebEngineDownloadItem::FileNoSpace)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileNameTooLong, QWebEngineDownloadItem::FileNameTooLong)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileTooLarge, QWebEngineDownloadItem::FileTooLarge)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileVirusInfected, QWebEngineDownloadItem::FileVirusInfected)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileTransientError, QWebEngineDownloadItem::FileTransientError)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileBlocked, QWebEngineDownloadItem::FileBlocked)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileSecurityCheckFailed, QWebEngineDownloadItem::FileSecurityCheckFailed)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileTooShort, QWebEngineDownloadItem::FileTooShort)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::FileHashMismatch, QWebEngineDownloadItem::FileHashMismatch)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::NetworkFailed, QWebEngineDownloadItem::NetworkFailed)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::NetworkTimeout, QWebEngineDownloadItem::NetworkTimeout)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::NetworkDisconnected, QWebEngineDownloadItem::NetworkDisconnected)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::NetworkServerDown, QWebEngineDownloadItem::NetworkServerDown)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::NetworkInvalidRequest, QWebEngineDownloadItem::NetworkInvalidRequest)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::ServerFailed, QWebEngineDownloadItem::ServerFailed)
+//ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::ServerNoRange, QWebEngineDownloadItem::ServerNoRange)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::ServerBadContent, QWebEngineDownloadItem::ServerBadContent)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::ServerUnauthorized, QWebEngineDownloadItem::ServerUnauthorized)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::ServerCertProblem, QWebEngineDownloadItem::ServerCertProblem)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::ServerForbidden, QWebEngineDownloadItem::ServerForbidden)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::ServerUnreachable, QWebEngineDownloadItem::ServerUnreachable)
+ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::UserCanceled, QWebEngineDownloadItem::UserCanceled)
+//ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::UserShutdown, QWebEngineDownloadItem::UserShutdown)
+//ASSERT_ENUMS_MATCH(BrowserContextAdapterClient::Crash, QWebEngineDownloadItem::Crash)
+
 static inline QWebEngineDownloadItem::DownloadState toDownloadState(int state)
 {
     switch (state) {
@@ -63,6 +91,11 @@ static inline QWebEngineDownloadItem::DownloadState toDownloadState(int state)
     }
 }
 
+static inline QWebEngineDownloadItem::DownloadInterruptReason toDownloadInterruptReason(int reason)
+{
+    return static_cast<QWebEngineDownloadItem::DownloadInterruptReason>(reason);
+}
+
 /*!
     \class QWebEngineDownloadItem
     \brief The QWebEngineDownloadItem class provides information about a download.
@@ -81,6 +114,7 @@ QWebEngineDownloadItemPrivate::QWebEngineDownloadItemPrivate(QWebEngineProfilePr
     , downloadState(QWebEngineDownloadItem::DownloadCancelled)
     , savePageFormat(QWebEngineDownloadItem::MimeHtmlSaveFormat)
     , type(QWebEngineDownloadItem::Attachment)
+    , interruptReason(QWebEngineDownloadItem::NoReason)
     , downloadUrl(url)
     , totalBytes(-1)
     , receivedBytes(0)
@@ -97,6 +131,11 @@ void QWebEngineDownloadItemPrivate::update(const BrowserContextAdapterClient::Do
 
     Q_ASSERT(downloadState != QWebEngineDownloadItem::DownloadRequested);
 
+    if (toDownloadInterruptReason(info.downloadInterruptReason) != interruptReason) {
+        interruptReason = toDownloadInterruptReason(info.downloadInterruptReason);
+        Q_EMIT q->interruptReasonChanged();
+    }
+
     if (toDownloadState(info.state) != downloadState) {
         downloadState = toDownloadState(info.state);
         Q_EMIT q->stateChanged(downloadState);
@@ -192,6 +231,15 @@ quint32 QWebEngineDownloadItem::id() const
 */
 
 /*!
+    \fn QWebEngineDownloadItem::interruptReasonChanged()
+    \since 5.9
+
+    This signal is emitted whenever the reason of the download's interruption changes.
+
+    \sa interruptReason(), QWebEngineDownloadItem::DownloadInterruptReason
+*/
+
+/*!
     \enum QWebEngineDownloadItem::DownloadState
 
     This enum describes the state of the download:
@@ -238,6 +286,45 @@ quint32 QWebEngineDownloadItem::id() const
 */
 
 /*!
+    \enum QWebEngineDownloadItem::DownloadInterruptReason
+    \since 5.9
+
+    Describes the reason why a download was interrupted:
+
+    \value NoReason Unknown reason or not interrupted.
+    \value FileFailed General file operation failure.
+    \value FileAccessDenied The file cannot be written locally, due to access restrictions.
+    \value FileNoSpace Insufficient space on the target drive.
+    \value FileNameTooLong The directory or file name is too long.
+    \value FileTooLarge The file size exceeds the file system limitation.
+    \value FileVirusInfected The file is infected with a virus.
+    \value FileTransientError Temporary problem (for example the file is in use,
+           out of memory, or too many files are opened at once).
+    \value FileBlocked The file was blocked due to local policy.
+    \value FileSecurityCheckFailed An attempt to check the safety of the download
+           failed due to unexpected reasons.
+    \value FileTooShort An attempt was made to seek past the end of a file when
+           opening a file (as part of resuming a previously interrupted download).
+    \value FileHashMismatch The partial file did not match the expected hash.
+
+    \value NetworkFailed General network failure.
+    \value NetworkTimeout The network operation has timed out.
+    \value NetworkDisconnected The network connection has been terminated.
+    \value NetworkServerDown The server has gone down.
+    \value NetworkInvalidRequest The network request was invalid (for example, the
+           original or redirected URL is invalid, has an unsupported scheme, or is disallowed by policy).
+
+    \value ServerFailed General server failure.
+    \value ServerBadContent The server does not have the requested data.
+    \value ServerUnauthorized The server did not authorize access to the resource.
+    \value ServerCertProblem A problem with the server certificate occurred.
+    \value ServerForbidden Access forbidden by the server.
+    \value ServerUnreachable Unexpected server response (might indicate that
+           the responding server may not be the intended server).
+    \value UserCanceled The user canceled the download.
+*/
+
+/*!
     Returns the download item's current state.
 
     \sa QWebEngineDownloadItem::DownloadState
@@ -374,6 +461,17 @@ QWebEngineDownloadItem::DownloadType QWebEngineDownloadItem::type() const
     return d->type;
 }
 
+/*!
+    Returns the reason why the download was interrupted.
+    \since 5.9
+*/
+
+QWebEngineDownloadItem::DownloadInterruptReason QWebEngineDownloadItem::interruptReason() const
+{
+    Q_D(const QWebEngineDownloadItem);
+    return d->interruptReason;
+}
+
 QWebEngineDownloadItem::QWebEngineDownloadItem(QWebEngineDownloadItemPrivate *p, QObject *parent)
     : QObject(parent)
     , d_ptr(p)
diff --git a/src/webenginewidgets/api/qwebenginedownloaditem.h b/src/webenginewidgets/api/qwebenginedownloaditem.h
index 4b58748ad..6990b1e52 100644
--- a/src/webenginewidgets/api/qwebenginedownloaditem.h
+++ b/src/webenginewidgets/api/qwebenginedownloaditem.h
@@ -72,6 +72,37 @@ public:
     };
     Q_ENUM(SavePageFormat)
 
+    enum DownloadInterruptReason {
+        NoReason = 0,
+        FileFailed = 1,
+        FileAccessDenied = 2,
+        FileNoSpace = 3,
+        FileNameTooLong = 5,
+        FileTooLarge = 6,
+        FileVirusInfected = 7,
+        FileTransientError = 10,
+        FileBlocked = 11,
+        FileSecurityCheckFailed = 12,
+        FileTooShort = 13,
+        FileHashMismatch = 14,
+        NetworkFailed = 20,
+        NetworkTimeout = 21,
+        NetworkDisconnected = 22,
+        NetworkServerDown = 23,
+        NetworkInvalidRequest = 24,
+        ServerFailed = 30,
+        //ServerNoRange = 31,
+        ServerBadContent = 33,
+        ServerUnauthorized = 34,
+        ServerCertProblem = 35,
+        ServerForbidden = 36,
+        ServerUnreachable = 37,
+        UserCanceled = 40,
+        //UserShutdown = 41,
+        //Crash = 50
+    };
+    Q_ENUM(DownloadInterruptReason)
+
     enum DownloadType {
         Attachment = 0,
         DownloadAttribute,
@@ -92,6 +123,7 @@ public:
     SavePageFormat savePageFormat() const;
     void setSavePageFormat(SavePageFormat format);
     DownloadType type() const;
+    DownloadInterruptReason interruptReason() const;
 
 public Q_SLOTS:
     void accept();
@@ -101,6 +133,7 @@ Q_SIGNALS:
     void finished();
     void stateChanged(QWebEngineDownloadItem::DownloadState state);
     void downloadProgress(qint64 bytesReceived, qint64 bytesTotal);
+    void interruptReasonChanged();
 
 private:
     Q_DISABLE_COPY(QWebEngineDownloadItem)
diff --git a/src/webenginewidgets/api/qwebenginedownloaditem_p.h b/src/webenginewidgets/api/qwebenginedownloaditem_p.h
index 9ddb45444..038332da3 100644
--- a/src/webenginewidgets/api/qwebenginedownloaditem_p.h
+++ b/src/webenginewidgets/api/qwebenginedownloaditem_p.h
@@ -73,6 +73,7 @@ public:
     QWebEngineDownloadItem::DownloadState downloadState;
     QWebEngineDownloadItem::SavePageFormat savePageFormat;
     QWebEngineDownloadItem::DownloadType type;
+    QWebEngineDownloadItem::DownloadInterruptReason interruptReason;
     QString downloadPath;
     const QUrl downloadUrl;
     QString mimeType;