diff --git a/src/plugins/designer/formwindoweditor.cpp b/src/plugins/designer/formwindoweditor.cpp
index 4bf4ddea849..5ad300f655d 100644
--- a/src/plugins/designer/formwindoweditor.cpp
+++ b/src/plugins/designer/formwindoweditor.cpp
@@ -39,11 +39,6 @@
 #include <utils/fileutils.h>
 #include <utils/qtcassert.h>
 
-#include <QBuffer>
-#include <QDebug>
-#include <QDesignerFormWindowInterface>
-#include <QFileInfo>
-
 namespace Designer {
 
 using namespace Internal;
@@ -58,49 +53,9 @@ FormWindowEditor::~FormWindowEditor()
 {
 }
 
-void FormWindowEditor::finalizeInitialization()
-{
-    // Revert to saved/load externally modified files.
-    connect(formWindowFile(), &FormWindowFile::reloadRequested,
-            [this](QString *errorString, const QString &fileName) {
-                open(errorString, fileName, fileName);
-    });
-}
-
 bool FormWindowEditor::open(QString *errorString, const QString &fileName, const QString &realFileName)
 {
-    if (Designer::Constants::Internal::debug)
-        qDebug() << "FormWindowEditor::open" << fileName;
-
-    auto document = qobject_cast<FormWindowFile *>(textDocument());
-    QDesignerFormWindowInterface *form = document->formWindow();
-    QTC_ASSERT(form, return false);
-
-    if (fileName.isEmpty())
-        return true;
-
-    const QFileInfo fi(fileName);
-    const QString absfileName = fi.absoluteFilePath();
-
-    QString contents;
-    if (document->read(absfileName, &contents, errorString) != Utils::TextFileFormat::ReadSuccess)
-        return false;
-
-    form->setFileName(absfileName);
-    const QByteArray contentsBA = contents.toUtf8();
-    QBuffer str;
-    str.setData(contentsBA);
-    str.open(QIODevice::ReadOnly);
-    if (!form->setContents(&str, errorString))
-        return false;
-    form->setDirty(fileName != realFileName);
-
-    document->syncXmlFromFormWindow();
-    document->setFilePath(Utils::FileName::fromString(absfileName));
-    document->setShouldAutoSave(false);
-    document->resourceHandler()->updateResources(true);
-
-    return true;
+    return formWindowFile()->open(errorString, fileName, realFileName);
 }
 
 QWidget *FormWindowEditor::toolBar()
diff --git a/src/plugins/designer/formwindoweditor.h b/src/plugins/designer/formwindoweditor.h
index 2e5251c128b..f82030b61d4 100644
--- a/src/plugins/designer/formwindoweditor.h
+++ b/src/plugins/designer/formwindoweditor.h
@@ -54,7 +54,6 @@ public:
     FormWindowEditor();
     ~FormWindowEditor();
 
-    void finalizeInitialization();
     bool open(QString *errorString, const QString &fileName, const QString &realFileName);
     QWidget *toolBar();
     bool isDesignModePreferred() const;
diff --git a/src/plugins/designer/formwindowfile.cpp b/src/plugins/designer/formwindowfile.cpp
index cb6d053774b..4b2ec88039b 100644
--- a/src/plugins/designer/formwindowfile.cpp
+++ b/src/plugins/designer/formwindowfile.cpp
@@ -36,6 +36,7 @@
 #include <utils/qtcassert.h>
 
 #include <QApplication>
+#include <QBuffer>
 #include <QDesignerFormWindowInterface>
 #include <QDesignerFormWindowManagerInterface>
 #include <QDesignerFormEditorInterface>
@@ -71,6 +72,41 @@ FormWindowFile::FormWindowFile(QDesignerFormWindowInterface *form, QObject *pare
             m_resourceHandler, SLOT(updateResources()));
 }
 
+bool FormWindowFile::open(QString *errorString, const QString &fileName, const QString &realFileName)
+{
+    if (Designer::Constants::Internal::debug)
+        qDebug() << "FormWindowFile::open" << fileName;
+
+    QDesignerFormWindowInterface *form = formWindow();
+    QTC_ASSERT(form, return false);
+
+    if (fileName.isEmpty())
+        return true;
+
+    const QFileInfo fi(fileName);
+    const QString absfileName = fi.absoluteFilePath();
+
+    QString contents;
+    if (read(absfileName, &contents, errorString) != Utils::TextFileFormat::ReadSuccess)
+        return false;
+
+    form->setFileName(absfileName);
+    const QByteArray contentsBA = contents.toUtf8();
+    QBuffer str;
+    str.setData(contentsBA);
+    str.open(QIODevice::ReadOnly);
+    if (!form->setContents(&str, errorString))
+        return false;
+    form->setDirty(fileName != realFileName);
+
+    syncXmlFromFormWindow();
+    setFilePath(Utils::FileName::fromString(absfileName));
+    setShouldAutoSave(false);
+    resourceHandler()->updateResources(true);
+
+    return true;
+}
+
 bool FormWindowFile::save(QString *errorString, const QString &name, bool autoSave)
 {
     const FileName actualName = name.isEmpty() ? filePath() : FileName::fromString(name);
@@ -175,8 +211,7 @@ bool FormWindowFile::reload(QString *errorString, ReloadFlag flag, ChangeType ty
         emit changed();
     } else {
         emit aboutToReload();
-        emit reloadRequested(errorString, filePath().toString());
-        const bool success = errorString->isEmpty();
+        const bool success = open(errorString, filePath().toString(), filePath().toString());
         emit reloadFinished(success);
         return success;
     }
diff --git a/src/plugins/designer/formwindowfile.h b/src/plugins/designer/formwindowfile.h
index bf26bf505f7..1d4d7a4f369 100644
--- a/src/plugins/designer/formwindowfile.h
+++ b/src/plugins/designer/formwindowfile.h
@@ -52,6 +52,8 @@ public:
     explicit FormWindowFile(QDesignerFormWindowInterface *form, QObject *parent = 0);
     ~FormWindowFile() { }
 
+    bool open(QString *errorString, const QString &fileName, const QString &realFileName);
+
     // IDocument
     bool save(QString *errorString, const QString &fileName, bool autoSave);
     bool setContents(const QByteArray &contents);
@@ -72,10 +74,6 @@ public:
     QString formWindowContents() const;
     ResourceHandler *resourceHandler() const;
 
-signals:
-    // Internal
-    void reloadRequested(QString *errorString, const QString &);
-
 public slots:
     void setFilePath(const Utils::FileName &);
     void setShouldAutoSave(bool sad = true) { m_shouldAutoSave = sad; }