QmlDesigner: Add setting to force download mirror

Add setting QML/Designer/ForceDownloadMirror to set a specific mirror
for downloads.
Remove private QQmlData usage. This was for debugging and the issue was fixed.

Task-number: QDS-9687
Change-Id: Icf9a2e2db7d60b13f37d7f51b857cbe7c0a1c3b4
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

1 files changed, 11 insertions, 5 deletions

diff --git a/src/plugins/qmldesigner/utils/filedownloader.cpp b/src/plugins/qmldesigner/utils/filedownloader.cpp
index 7825be5081..5f0aabe309 100644
--- a/src/plugins/qmldesigner/utils/filedownloader.cpp
+++ b/src/plugins/qmldesigner/utils/filedownloader.cpp
@@ -2,7 +2,8 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
 #include "filedownloader.h"
 
-#include <private/qqmldata_p.h>
+#include <coreplugin/icore.h>
+
 #include <utils/networkaccessmanager.h>
 #include <utils/filepath.h>
 
@@ -154,6 +155,15 @@ void FileDownloader::setUrl(const QUrl &url)
 {
     if (m_url != url) {
         m_url = url;
+
+        const QString mirror = Core::ICore::settings()->value("QML/Designer/ForceDownloadMirror").toString();
+        if (!mirror.isEmpty()) {
+            qWarning() << Q_FUNC_INFO << "Alternative mirror is used:" << mirror;
+            QString replaced = url.toString();
+            replaced.replace("https://download.qt.io/", mirror);
+            m_url = QUrl::fromUserInput(replaced);
+        }
+
         emit urlChanged();
     }
 
@@ -262,10 +272,6 @@ void FileDownloader::doProbeUrl()
                            this,
                            [this](QNetworkReply::NetworkError code) {
 
-                               if (QQmlData::wasDeleted(this)) {
-                                   qDebug() << Q_FUNC_INFO << "FileDownloader was deleted.";
-                                   return;
-                               }
 
                                qDebug() << Q_FUNC_INFO << "Network error:" << code
                                         << qobject_cast<QNetworkReply *>(sender())->errorString();