ProjectExplorer: Follow up on too-much-magic in IProjectManager

Use a ProjectManager::registerProjectType<Project>(MimeType) function,
removing cryptic IProjectManager object ownership.

Change-Id: I212cd25bd4ee757022a8cb0decb4b8de3a112d12
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>

54 files changed, 153 insertions, 533 deletions

diff --git a/src/plugins/autotoolsprojectmanager/autotoolsmanager.cpp b/src/plugins/autotoolsprojectmanager/autotoolsmanager.cpp
deleted file mode 100644
index 6e19e8516a..0000000000
--- a/src/plugins/autotoolsprojectmanager/autotoolsmanager.cpp
+++ /dev/null
@@ -1,48 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Openismus GmbH.
-** Author: Peter Penz (ppenz@openismus.com)
-** Author: Patricia Santana Cruz (patriciasantanacruz@gmail.com)
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of Qt Creator.
-**
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 as published by the Free Software
-** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-****************************************************************************/
-
-#include "autotoolsmanager.h"
-#include "autotoolsproject.h"
-#include "autotoolsprojectconstants.h"
-
-using namespace ProjectExplorer;
-
-namespace AutotoolsProjectManager {
-namespace Internal {
-
-Project *AutotoolsManager::openProject(const QString &fileName)
-{
-    return new AutotoolsProject(fileName);
-}
-
-QString AutotoolsManager::mimeType() const
-{
-    return QLatin1String(Constants::MAKEFILE_MIMETYPE);
-}
-
-} // namespace Internal
-} // namespace AutotoolsProjectManager
diff --git a/src/plugins/autotoolsprojectmanager/autotoolsmanager.h b/src/plugins/autotoolsprojectmanager/autotoolsmanager.h
deleted file mode 100644
index 500a2599dd..0000000000
--- a/src/plugins/autotoolsprojectmanager/autotoolsmanager.h
+++ /dev/null
@@ -1,52 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Openismus GmbH.
-** Author: Peter Penz (ppenz@openismus.com)
-** Author: Patricia Santana Cruz (patriciasantanacruz@gmail.com)
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of Qt Creator.
-**
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 as published by the Free Software
-** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-****************************************************************************/
-
-#pragma once
-
-#include <projectexplorer/iprojectmanager.h>
-
-namespace AutotoolsProjectManager {
-namespace Internal {
-
-/**
- * @brief Implementation of ProjectExplorer::IProjectManager interface.
- *
- * An autotools project is identified by the MIME type text/x-makefile.
- * The project is represented by an instance of ProjectExplorer::Project,
- * which gets created by AutotoolsManager::openProject().
- */
-class AutotoolsManager : public ProjectExplorer::IProjectManager
-{
-    Q_OBJECT
-
-public:
-    ProjectExplorer::Project *openProject(const QString &fileName) override;
-    QString mimeType() const override;
-};
-
-} // namespace Internal
-} // namespace AutotoolsProjectManager
diff --git a/src/plugins/autotoolsprojectmanager/autotoolsproject.cpp b/src/plugins/autotoolsprojectmanager/autotoolsproject.cpp
index 1b986bd7ed..1733d5ec5d 100644
--- a/src/plugins/autotoolsprojectmanager/autotoolsproject.cpp
+++ b/src/plugins/autotoolsprojectmanager/autotoolsproject.cpp
@@ -28,7 +28,6 @@
 #include "autotoolsproject.h"
 #include "autotoolsbuildconfiguration.h"
 #include "autotoolsprojectconstants.h"
-#include "autotoolsmanager.h"
 #include "autotoolsprojectnode.h"
 #include "autotoolsprojectfile.h"
 #include "autotoolsopenprojectwizard.h"
@@ -69,7 +68,7 @@ using namespace AutotoolsProjectManager;
 using namespace AutotoolsProjectManager::Internal;
 using namespace ProjectExplorer;
 
-AutotoolsProject::AutotoolsProject(const QString &fileName) :
+AutotoolsProject::AutotoolsProject(const Utils::FileName &fileName) :
     m_fileWatcher(new Utils::FileSystemWatcher(this)),
     m_cppCodeModelUpdater(new CppTools::CppProjectUpdater(this))
 {
diff --git a/src/plugins/autotoolsprojectmanager/autotoolsproject.h b/src/plugins/autotoolsprojectmanager/autotoolsproject.h
index 501fb9f98e..8b2d5ab788 100644
--- a/src/plugins/autotoolsprojectmanager/autotoolsproject.h
+++ b/src/plugins/autotoolsprojectmanager/autotoolsproject.h
@@ -54,7 +54,7 @@ class AutotoolsProject : public ProjectExplorer::Project
     Q_OBJECT
 
 public:
-    AutotoolsProject(const QString &fileName);
+    explicit AutotoolsProject(const Utils::FileName &fileName);
     ~AutotoolsProject() override;
 
     QString displayName() const override;
diff --git a/src/plugins/autotoolsprojectmanager/autotoolsprojectfile.cpp b/src/plugins/autotoolsprojectmanager/autotoolsprojectfile.cpp
index 096ed7301a..49a3d1e6ff 100644
--- a/src/plugins/autotoolsprojectmanager/autotoolsprojectfile.cpp
+++ b/src/plugins/autotoolsprojectmanager/autotoolsprojectfile.cpp
@@ -32,11 +32,11 @@
 namespace AutotoolsProjectManager {
 namespace Internal {
 
-AutotoolsProjectFile::AutotoolsProjectFile(const QString &fileName)
+AutotoolsProjectFile::AutotoolsProjectFile(const Utils::FileName &fileName)
 {
     setId("Autotools.ProjectFile");
     setMimeType(QLatin1String(Constants::MAKEFILE_MIMETYPE));
-    setFilePath(Utils::FileName::fromString(fileName));
+    setFilePath(fileName);
 }
 
 } // namespace Internal
diff --git a/src/plugins/autotoolsprojectmanager/autotoolsprojectfile.h b/src/plugins/autotoolsprojectmanager/autotoolsprojectfile.h
index 2e1d9b54e9..8c41e19bd5 100644
--- a/src/plugins/autotoolsprojectmanager/autotoolsprojectfile.h
+++ b/src/plugins/autotoolsprojectmanager/autotoolsprojectfile.h
@@ -45,7 +45,7 @@ namespace Internal {
 class AutotoolsProjectFile : public Core::IDocument
 {
 public:
-    AutotoolsProjectFile(const QString &fileName);
+    AutotoolsProjectFile(const Utils::FileName &fileName);
 };
 
 } // namespace Internal
diff --git a/src/plugins/autotoolsprojectmanager/autotoolsprojectmanager.pro b/src/plugins/autotoolsprojectmanager/autotoolsprojectmanager.pro
index 2c259f6c61..3e30bf328c 100644
--- a/src/plugins/autotoolsprojectmanager/autotoolsprojectmanager.pro
+++ b/src/plugins/autotoolsprojectmanager/autotoolsprojectmanager.pro
@@ -2,7 +2,6 @@ include(../../qtcreatorplugin.pri)
 
 HEADERS = autotoolsprojectplugin.h\
           autotoolsopenprojectwizard.h\
-          autotoolsmanager.h\
           autotoolsprojectfile.h\
           autotoolsprojectnode.h\
           autotoolsproject.h\
@@ -17,7 +16,6 @@ HEADERS = autotoolsprojectplugin.h\
           makefileparser.h
 SOURCES = autotoolsprojectplugin.cpp\
           autotoolsopenprojectwizard.cpp\
-          autotoolsmanager.cpp\
           autotoolsprojectfile.cpp\
           autotoolsprojectnode.cpp\
           autotoolsproject.cpp\
diff --git a/src/plugins/autotoolsprojectmanager/autotoolsprojectmanager.qbs b/src/plugins/autotoolsprojectmanager/autotoolsprojectmanager.qbs
index af646ffa2e..8c76c5d41f 100644
--- a/src/plugins/autotoolsprojectmanager/autotoolsprojectmanager.qbs
+++ b/src/plugins/autotoolsprojectmanager/autotoolsprojectmanager.qbs
@@ -20,8 +20,6 @@ QtcPlugin {
         "autotoolsbuildconfiguration.h",
         "autotoolsbuildsettingswidget.cpp",
         "autotoolsbuildsettingswidget.h",
-        "autotoolsmanager.cpp",
-        "autotoolsmanager.h",
         "autotoolsopenprojectwizard.cpp",
         "autotoolsopenprojectwizard.h",
         "autotoolsproject.cpp",
diff --git a/src/plugins/autotoolsprojectmanager/autotoolsprojectplugin.cpp b/src/plugins/autotoolsprojectmanager/autotoolsprojectplugin.cpp
index d5815515af..c323754a65 100644
--- a/src/plugins/autotoolsprojectmanager/autotoolsprojectplugin.cpp
+++ b/src/plugins/autotoolsprojectmanager/autotoolsprojectplugin.cpp
@@ -26,13 +26,15 @@
 ****************************************************************************/
 
 #include "autotoolsprojectplugin.h"
-#include "autotoolsmanager.h"
+#include "autotoolsproject.h"
+#include "autotoolsprojectconstants.h"
 #include "autotoolsbuildconfiguration.h"
 #include "makestep.h"
 #include "autogenstep.h"
 #include "autoreconfstep.h"
 #include "configurestep.h"
-#include "autotoolsprojectconstants.h"
+
+#include <projectexplorer/projectmanager.h>
 
 #include <QStringList>
 #include <QtPlugin>
@@ -53,7 +55,8 @@ bool AutotoolsProjectPlugin::initialize(const QStringList &arguments,
     addAutoReleasedObject(new AutogenStepFactory);
     addAutoReleasedObject(new ConfigureStepFactory);
     addAutoReleasedObject(new AutoreconfStepFactory);
-    addAutoReleasedObject(new AutotoolsManager);
+
+    ProjectExplorer::ProjectManager::registerProjectType<AutotoolsProject>(Constants::MAKEFILE_MIMETYPE);
 
     return true;
 }
diff --git a/src/plugins/clearcase/clearcaseplugin.cpp b/src/plugins/clearcase/clearcaseplugin.cpp
index a8bc76c3a5..c5beb51b43 100644
--- a/src/plugins/clearcase/clearcaseplugin.cpp
+++ b/src/plugins/clearcase/clearcaseplugin.cpp
@@ -52,7 +52,7 @@
 #include <texteditor/textdocument.h>
 #include <projectexplorer/session.h>
 #include <projectexplorer/project.h>
-#include <projectexplorer/iprojectmanager.h>
+#include <projectexplorer/projectmanager.h>
 #include <utils/algorithm.h>
 #include <utils/synchronousprocess.h>
 #include <utils/temporarydirectory.h>
diff --git a/src/plugins/cmakeprojectmanager/cmakeprojectmanager.cpp b/src/plugins/cmakeprojectmanager/cmakeprojectmanager.cpp
index 46aaeb3347..844a8a95bb 100644
--- a/src/plugins/cmakeprojectmanager/cmakeprojectmanager.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakeprojectmanager.cpp
@@ -155,13 +155,3 @@ void CMakeManager::rescanProject(Project *project)
     cmakeProject->scanProjectTree();
     cmakeProject->runCMake(); // by my experience: every rescan run requires cmake run too
 }
-
-Project *CMakeManager::openProject(const QString &fileName)
-{
-    return new CMakeProject(Utils::FileName::fromString(fileName));
-}
-
-QString CMakeManager::mimeType() const
-{
-    return QLatin1String(Constants::CMAKEPROJECTMIMETYPE);
-}
diff --git a/src/plugins/cmakeprojectmanager/cmakeprojectmanager.h b/src/plugins/cmakeprojectmanager/cmakeprojectmanager.h
index e8e42059ae..c1d19514ea 100644
--- a/src/plugins/cmakeprojectmanager/cmakeprojectmanager.h
+++ b/src/plugins/cmakeprojectmanager/cmakeprojectmanager.h
@@ -25,7 +25,7 @@
 
 #pragma once
 
-#include <projectexplorer/iprojectmanager.h>
+#include <projectexplorer/project.h>
 
 QT_BEGIN_NAMESPACE
 class QAction;
@@ -36,15 +36,13 @@ namespace Internal {
 
 class CMakeSettingsPage;
 
-class CMakeManager : public ProjectExplorer::IProjectManager
+class CMakeManager : public QObject
 {
     Q_OBJECT
+
 public:
     CMakeManager();
 
-    ProjectExplorer::Project *openProject(const QString &fileName) override;
-    QString mimeType() const override;
-
 private:
     void updateCmakeActions();
     void clearCMakeCache(ProjectExplorer::Project *project);
diff --git a/src/plugins/cmakeprojectmanager/cmakeprojectplugin.cpp b/src/plugins/cmakeprojectmanager/cmakeprojectplugin.cpp
index b91b1a944c..1e972f9421 100644
--- a/src/plugins/cmakeprojectmanager/cmakeprojectplugin.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakeprojectplugin.cpp
@@ -45,6 +45,7 @@
 #include <coreplugin/fileiconprovider.h>
 
 #include <projectexplorer/kitmanager.h>
+#include <projectexplorer/projectmanager.h>
 #include <projectexplorer/projecttree.h>
 
 #include <utils/parameteraction.h>
@@ -64,6 +65,9 @@ bool CMakeProjectPlugin::initialize(const QStringList & /*arguments*/, QString *
     addAutoReleasedObject(new Internal::CMakeSnippetProvider);
     addAutoReleasedObject(new CMakeSettingsPage);
     addAutoReleasedObject(new CMakeManager);
+
+    ProjectManager::registerProjectType<CMakeProject>(Constants::CMAKEPROJECTMIMETYPE);
+
     addAutoReleasedObject(new CMakeBuildStepFactory);
     addAutoReleasedObject(new CMakeRunConfigurationFactory);
     addAutoReleasedObject(new CMakeBuildConfigurationFactory);
diff --git a/src/plugins/genericprojectmanager/genericproject.cpp b/src/plugins/genericprojectmanager/genericproject.cpp
index 0fb396598b..6c394c5cb1 100644
--- a/src/plugins/genericprojectmanager/genericproject.cpp
+++ b/src/plugins/genericprojectmanager/genericproject.cpp
@@ -54,6 +54,7 @@
 
 using namespace Core;
 using namespace ProjectExplorer;
+using namespace Utils;
 
 namespace GenericProjectManager {
 namespace Internal {
@@ -64,7 +65,7 @@ namespace Internal {
 //
 ////////////////////////////////////////////////////////////////////////////////////
 
-GenericProject::GenericProject(const QString &fileName)
+GenericProject::GenericProject(const Utils::FileName &fileName)
     : m_cppCodeModelUpdater(new CppTools::CppProjectUpdater(this))
 {
     setId(Constants::GENERICPROJECT_ID);
@@ -81,9 +82,9 @@ GenericProject::GenericProject(const QString &fileName)
     m_includesFileName = QFileInfo(dir, m_projectName + ".includes").absoluteFilePath();
     m_configFileName   = QFileInfo(dir, m_projectName + ".config").absoluteFilePath();
 
-    m_filesIDocument    = new GenericProjectFile(this, m_filesFileName, GenericProject::Files);
-    m_includesIDocument = new GenericProjectFile(this, m_includesFileName, GenericProject::Configuration);
-    m_configIDocument   = new GenericProjectFile(this, m_configFileName, GenericProject::Configuration);
+    m_filesIDocument    = new GenericProjectFile(this, FileName::fromString(m_filesFileName), GenericProject::Files);
+    m_includesIDocument = new GenericProjectFile(this, FileName::fromString(m_includesFileName), GenericProject::Configuration);
+    m_configIDocument   = new GenericProjectFile(this, FileName::fromString(m_configFileName), GenericProject::Configuration);
 
     DocumentManager::addDocument(document());
     DocumentManager::addDocument(m_filesIDocument);
@@ -461,14 +462,14 @@ Project::RestoreResult GenericProject::fromMap(const QVariantMap &map, QString *
 //
 ////////////////////////////////////////////////////////////////////////////////////
 
-GenericProjectFile::GenericProjectFile(GenericProject *parent, QString fileName,
+GenericProjectFile::GenericProjectFile(GenericProject *parent, const Utils::FileName &fileName,
                                        GenericProject::RefreshOptions options) :
       m_project(parent),
       m_options(options)
 {
     setId("Generic.ProjectFile");
     setMimeType(Constants::GENERICMIMETYPE);
-    setFilePath(Utils::FileName::fromString(fileName));
+    setFilePath(fileName);
 }
 
 IDocument::ReloadBehavior GenericProjectFile::reloadBehavior(ChangeTrigger state, ChangeType type) const
diff --git a/src/plugins/genericprojectmanager/genericproject.h b/src/plugins/genericprojectmanager/genericproject.h
index 7dac99847b..12e02de5b1 100644
--- a/src/plugins/genericprojectmanager/genericproject.h
+++ b/src/plugins/genericprojectmanager/genericproject.h
@@ -48,7 +48,7 @@ class GenericProject : public ProjectExplorer::Project
     Q_OBJECT
 
 public:
-    explicit GenericProject(const QString &filename);
+    explicit GenericProject(const Utils::FileName &filename);
     ~GenericProject() override;
 
     QString filesFileName() const;
@@ -112,7 +112,8 @@ private:
 class GenericProjectFile : public Core::IDocument
 {
 public:
-    GenericProjectFile(GenericProject *parent, QString fileName, GenericProject::RefreshOptions options);
+    GenericProjectFile(GenericProject *parent, const Utils::FileName &fileName,
+                       GenericProject::RefreshOptions options);
 
     ReloadBehavior reloadBehavior(ChangeTrigger state, ChangeType type) const override;
     bool reload(QString *errorString, ReloadFlag flag, ChangeType type) override;
diff --git a/src/plugins/genericprojectmanager/genericprojectfileseditor.cpp b/src/plugins/genericprojectmanager/genericprojectfileseditor.cpp
index 9372153793..6a61790fd8 100644
--- a/src/plugins/genericprojectmanager/genericprojectfileseditor.cpp
+++ b/src/plugins/genericprojectmanager/genericprojectfileseditor.cpp
@@ -24,7 +24,6 @@
 ****************************************************************************/
 
 #include "genericprojectfileseditor.h"
-#include "genericprojectmanager.h"
 #include "genericprojectconstants.h"
 
 #include <coreplugin/editormanager/editormanager.h>
diff --git a/src/plugins/genericprojectmanager/genericprojectmanager.cpp b/src/plugins/genericprojectmanager/genericprojectmanager.cpp
deleted file mode 100644
index 2d3784d6d6..0000000000
--- a/src/plugins/genericprojectmanager/genericprojectmanager.cpp
+++ /dev/null
@@ -1,44 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of Qt Creator.
-**
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 as published by the Free Software
-** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-****************************************************************************/
-
-#include "genericprojectmanager.h"
-#include "genericprojectconstants.h"
-#include "genericproject.h"
-
-namespace GenericProjectManager {
-namespace Internal {
-
-QString Manager::mimeType() const
-{
-    return QLatin1String(Constants::GENERICMIMETYPE);
-}
-
-ProjectExplorer::Project *Manager::openProject(const QString &fileName)
-{
-    return new GenericProject(fileName);
-}
-
-} // namespace Internal
-} // namespace GenericProjectManager
diff --git a/src/plugins/genericprojectmanager/genericprojectmanager.h b/src/plugins/genericprojectmanager/genericprojectmanager.h
deleted file mode 100644
index d86df741f4..0000000000
--- a/src/plugins/genericprojectmanager/genericprojectmanager.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of Qt Creator.
-**
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 as published by the Free Software
-** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-****************************************************************************/
-
-#pragma once
-
-#include <projectexplorer/iprojectmanager.h>
-
-namespace GenericProjectManager {
-namespace Internal {
-
-class Manager : public ProjectExplorer::IProjectManager
-{
-    Q_OBJECT
-
-public:
-    virtual QString mimeType() const override;
-    virtual ProjectExplorer::Project *openProject(const QString &fileName) override;
-};
-
-} // namespace Internal
-} // namespace GenericProjectManager
diff --git a/src/plugins/genericprojectmanager/genericprojectmanager.pro b/src/plugins/genericprojectmanager/genericprojectmanager.pro
index 1d325cef32..b4a8cf0631 100644
--- a/src/plugins/genericprojectmanager/genericprojectmanager.pro
+++ b/src/plugins/genericprojectmanager/genericprojectmanager.pro
@@ -2,7 +2,6 @@ include(../../qtcreatorplugin.pri)
 
 HEADERS = genericproject.h \
     genericprojectplugin.h \
-    genericprojectmanager.h \
     genericprojectconstants.h \
     genericprojectnodes.h \
     genericprojectwizard.h \
@@ -12,7 +11,6 @@ HEADERS = genericproject.h \
     filesselectionwizardpage.h
 SOURCES = genericproject.cpp \
     genericprojectplugin.cpp \
-    genericprojectmanager.cpp \
     genericprojectnodes.cpp \
     genericprojectwizard.cpp \
     genericprojectfileseditor.cpp \
diff --git a/src/plugins/genericprojectmanager/genericprojectmanager.qbs b/src/plugins/genericprojectmanager/genericprojectmanager.qbs
index 1027e04f89..74fc022ec2 100644
--- a/src/plugins/genericprojectmanager/genericprojectmanager.qbs
+++ b/src/plugins/genericprojectmanager/genericprojectmanager.qbs
@@ -30,8 +30,6 @@ QtcPlugin {
         "genericprojectconstants.h",
         "genericprojectfileseditor.cpp",
         "genericprojectfileseditor.h",
-        "genericprojectmanager.cpp",
-        "genericprojectmanager.h",
         "genericprojectnodes.cpp",
         "genericprojectnodes.h",
         "genericprojectplugin.cpp",
diff --git a/src/plugins/genericprojectmanager/genericprojectplugin.cpp b/src/plugins/genericprojectmanager/genericprojectplugin.cpp
index 3141ecf255..fb69394ff5 100644
--- a/src/plugins/genericprojectmanager/genericprojectplugin.cpp
+++ b/src/plugins/genericprojectmanager/genericprojectplugin.cpp
@@ -26,7 +26,6 @@
 #include "genericprojectplugin.h"
 
 #include "genericbuildconfiguration.h"
-#include "genericprojectmanager.h"
 #include "genericprojectwizard.h"
 #include "genericprojectconstants.h"
 #include "genericprojectfileseditor.h"
@@ -39,6 +38,7 @@
 #include <coreplugin/actionmanager/command.h>
 
 #include <projectexplorer/projectexplorerconstants.h>
+#include <projectexplorer/projectmanager.h>
 #include <projectexplorer/projecttree.h>
 #include <projectexplorer/selectablefilesmodel.h>
 
@@ -59,7 +59,8 @@ bool GenericProjectPlugin::initialize(const QStringList &, QString *errorMessage
 {
     Q_UNUSED(errorMessage)
 
-    addAutoReleasedObject(new Manager);
+    ProjectManager::registerProjectType<GenericProject>(Constants::GENERICMIMETYPE);
+
     addAutoReleasedObject(new ProjectFilesFactory);
     addAutoReleasedObject(new GenericMakeStepFactory);
     addAutoReleasedObject(new GenericBuildConfigurationFactory);
diff --git a/src/plugins/nim/nim.pro b/src/plugins/nim/nim.pro
index 90a8303725..85e3881e92 100644
--- a/src/plugins/nim/nim.pro
+++ b/src/plugins/nim/nim.pro
@@ -16,7 +16,6 @@ HEADERS += \
     tools/nimlexer.h \
     tools/sourcecodestream.h \
     project/nimproject.h \
-    project/nimprojectmanager.h \
     project/nimprojectnode.h \
     project/nimbuildconfiguration.h \
     project/nimbuildconfigurationfactory.h \
@@ -47,7 +46,6 @@ SOURCES += \
     editor/nimindenter.cpp \
     tools/nimlexer.cpp \
     project/nimproject.cpp \
-    project/nimprojectmanager.cpp \
     project/nimprojectnode.cpp \
     project/nimbuildconfiguration.cpp \
     project/nimbuildconfigurationfactory.cpp \
diff --git a/src/plugins/nim/nim.qbs b/src/plugins/nim/nim.qbs
index d894d2a30a..94ec0a0de4 100644
--- a/src/plugins/nim/nim.qbs
+++ b/src/plugins/nim/nim.qbs
@@ -45,7 +45,6 @@ QtcPlugin {
             "nimcompilercleanstepconfigwidget.h", "nimcompilercleanstepconfigwidget.cpp", "nimcompilercleanstepconfigwidget.ui",
             "nimcompilercleanstepfactory.h", "nimcompilercleanstepfactory.cpp",
             "nimproject.h", "nimproject.cpp",
-            "nimprojectmanager.h", "nimprojectmanager.cpp",
             "nimprojectnode.h", "nimprojectnode.cpp",
             "nimrunconfiguration.h", "nimrunconfiguration.cpp",
             "nimrunconfigurationfactory.h", "nimrunconfigurationfactory.cpp",
diff --git a/src/plugins/nim/nimplugin.cpp b/src/plugins/nim/nimplugin.cpp
index 4017f5e950..d884e43f6a 100644
--- a/src/plugins/nim/nimplugin.cpp
+++ b/src/plugins/nim/nimplugin.cpp
@@ -31,7 +31,7 @@
 #include "project/nimbuildconfigurationfactory.h"
 #include "project/nimcompilerbuildstepfactory.h"
 #include "project/nimcompilercleanstepfactory.h"
-#include "project/nimprojectmanager.h"
+#include "project/nimproject.h"
 #include "project/nimrunconfigurationfactory.h"
 #include "project/nimruncontrolfactory.h"
 #include "project/nimtoolchainfactory.h"
@@ -41,6 +41,7 @@
 #include "settings/nimsnippetprovider.h"
 
 #include <coreplugin/fileiconprovider.h>
+#include <projectexplorer/projectmanager.h>
 #include <projectexplorer/toolchainmanager.h>
 
 #include <QtPlugin>
@@ -71,7 +72,6 @@ bool NimPlugin::initialize(const QStringList &arguments, QString *errorMessage)
     addAutoReleasedObject(new NimSettings);
     addAutoReleasedObject(new NimSnippetProvider);
     addAutoReleasedObject(new NimEditorFactory);
-    addAutoReleasedObject(new NimProjectManager);
     addAutoReleasedObject(new NimBuildConfigurationFactory);
     addAutoReleasedObject(new NimRunConfigurationFactory);
     addAutoReleasedObject(new NimCompilerBuildStepFactory);
@@ -81,6 +81,8 @@ bool NimPlugin::initialize(const QStringList &arguments, QString *errorMessage)
     addAutoReleasedObject(new NimCodeStylePreferencesFactory);
     addAutoReleasedObject(new NimToolChainFactory);
 
+    ProjectExplorer::ProjectManager::registerProjectType<NimProject>(Constants::C_NIM_PROJECT_MIMETYPE);
+
     return true;
 }
 
diff --git a/src/plugins/nim/project/nimproject.cpp b/src/plugins/nim/project/nimproject.cpp
index bb3a8ef261..4794653c9e 100644
--- a/src/plugins/nim/project/nimproject.cpp
+++ b/src/plugins/nim/project/nimproject.cpp
@@ -26,7 +26,6 @@
 #include "nimproject.h"
 #include "nimbuildconfiguration.h"
 #include "nimprojectnode.h"
-#include "nimprojectmanager.h"
 #include "nimtoolchain.h"
 
 #include "../nimconstants.h"
@@ -54,12 +53,12 @@ namespace Nim {
 
 const int MIN_TIME_BETWEEN_PROJECT_SCANS = 4500;
 
-NimProject::NimProject(const QString &fileName)
+NimProject::NimProject(const FileName &fileName)
 {
     setId(Constants::C_NIMPROJECT_ID);
     setDocument(new TextEditor::TextDocument);
-    document()->setFilePath(FileName::fromString(fileName));
-    QFileInfo fi = QFileInfo(fileName);
+    document()->setFilePath(fileName);
+    QFileInfo fi = fileName.toFileInfo();
     QDir dir = fi.dir();
     setRootProjectNode(new NimProjectNode(*this, FileName::fromString(dir.absolutePath())));
     rootProjectNode()->setDisplayName(dir.dirName());
diff --git a/src/plugins/nim/project/nimproject.h b/src/plugins/nim/project/nimproject.h
index 385942dbe4..7ea82a0c81 100644
--- a/src/plugins/nim/project/nimproject.h
+++ b/src/plugins/nim/project/nimproject.h
@@ -39,7 +39,7 @@ class NimProject : public ProjectExplorer::Project
     Q_OBJECT
 
 public:
-    explicit NimProject(const QString &fileName);
+    explicit NimProject(const Utils::FileName &fileName);
 
     QString displayName() const override;
     QStringList files(FilesMode) const override;
diff --git a/src/plugins/nim/project/nimprojectmanager.cpp b/src/plugins/nim/project/nimprojectmanager.cpp
deleted file mode 100644
index 3235b0f0de..0000000000
--- a/src/plugins/nim/project/nimprojectmanager.cpp
+++ /dev/null
@@ -1,45 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) Filippo Cucchetto <filippocucchetto@gmail.com>
-** Contact: http://www.qt.io/licensing
-**
-** This file is part of Qt Creator.
-**
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 as published by the Free Software
-** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-****************************************************************************/
-
-#include "nimprojectmanager.h"
-#include "nimproject.h"
-
-#include "../nimconstants.h"
-
-using namespace ProjectExplorer;
-
-namespace Nim {
-
-QString NimProjectManager::mimeType() const
-{
-    return QLatin1String(Constants::C_NIM_PROJECT_MIMETYPE);
-}
-
-Project *NimProjectManager::openProject(const QString &fileName)
-{
-    return new NimProject(fileName);
-}
-
-}
diff --git a/src/plugins/nim/project/nimprojectmanager.h b/src/plugins/nim/project/nimprojectmanager.h
deleted file mode 100644
index a5336e465b..0000000000
--- a/src/plugins/nim/project/nimprojectmanager.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) Filippo Cucchetto <filippocucchetto@gmail.com>
-** Contact: http://www.qt.io/licensing
-**
-** This file is part of Qt Creator.
-**
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 as published by the Free Software
-** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-****************************************************************************/
-
-#pragma once
-
-#include <projectexplorer/iprojectmanager.h>
-
-namespace Nim {
-
-class NimProjectManager : public ProjectExplorer::IProjectManager
-{
-    Q_OBJECT
-
-public:
-    QString mimeType() const override;
-
-    ProjectExplorer::Project *openProject(const QString &fileName) override;
-};
-
-}
diff --git a/src/plugins/projectexplorer/jsonwizard/jsonkitspage.cpp b/src/plugins/projectexplorer/jsonwizard/jsonkitspage.cpp
index 23576222a3..5faa5c3642 100644
--- a/src/plugins/projectexplorer/jsonwizard/jsonkitspage.cpp
+++ b/src/plugins/projectexplorer/jsonwizard/jsonkitspage.cpp
@@ -26,10 +26,10 @@
 #include "jsonkitspage.h"
 #include "jsonwizard.h"
 
-#include "../iprojectmanager.h"
 #include "../kit.h"
 #include "../project.h"
 #include "../projectexplorer.h"
+#include "../projectmanager.h"
 
 #include <coreplugin/featureprovider.h>
 
@@ -102,19 +102,16 @@ void JsonKitsPage::setPreferredFeatures(const QVariant &data)
 
 void JsonKitsPage::setupProjectFiles(const JsonWizard::GeneratorFiles &files)
 {
-    Project *project = nullptr;
-
     for (const JsonWizard::GeneratorFile &f : files) {
         if (f.file.attributes() & GeneratedFile::OpenProjectAttribute) {
             const QFileInfo fi(f.file.path());
             const QString path = fi.absoluteFilePath();
-            IProjectManager *manager = IProjectManager::managerForMimeType(Utils::mimeTypeForFile(fi));
-            project = manager ? manager->openProject(path) : nullptr;
+            Project *project = ProjectManager::openProject(Utils::mimeTypeForFile(fi),
+                                                           Utils::FileName::fromString(path));
             if (project) {
                 if (setupProject(project))
                     project->saveSettings();
                 delete project;
-                project = nullptr;
             }
         }
     }
diff --git a/src/plugins/projectexplorer/jsonwizard/jsonwizardscannergenerator.cpp b/src/plugins/projectexplorer/jsonwizard/jsonwizardscannergenerator.cpp
index 88efc6f5e7..08d3ed1f88 100644
--- a/src/plugins/projectexplorer/jsonwizard/jsonwizardscannergenerator.cpp
+++ b/src/plugins/projectexplorer/jsonwizard/jsonwizardscannergenerator.cpp
@@ -26,7 +26,7 @@
 #include "jsonwizardscannergenerator.h"
 
 #include "../projectexplorer.h"
-#include "../iprojectmanager.h"
+#include "../projectmanager.h"
 #include "jsonwizard.h"
 #include "jsonwizardfactory.h"
 
@@ -105,7 +105,7 @@ Core::GeneratedFiles JsonWizardScannerGenerator::fileList(Utils::MacroExpander *
     for (auto it = result.begin(); it != result.end(); ++it) {
         const QString relPath = project.relativeFilePath(it->path());
         it->setBinary(binaryPattern.match(relPath).hasMatch());
-        bool found = IProjectManager::managerForMimeType(Utils::mimeTypeForFile(relPath));
+        bool found = ProjectManager::canOpenProjectForMimeType(Utils::mimeTypeForFile(relPath));
         if (found && !(onlyFirst && projectCount++))
             it->setAttributes(it->attributes() | Core::GeneratedFile::OpenProjectAttribute);
     }
diff --git a/src/plugins/projectexplorer/projectexplorer.cpp b/src/plugins/projectexplorer/projectexplorer.cpp
index 081f7559eb..fbddc1a7a2 100644
--- a/src/plugins/projectexplorer/projectexplorer.cpp
+++ b/src/plugins/projectexplorer/projectexplorer.cpp
@@ -41,6 +41,7 @@
 #include "project.h"
 #include "projectexplorersettings.h"
 #include "projectexplorersettingspage.h"
+#include "projectmanager.h"
 #include "removetaskhandler.h"
 #include "kitfeatureprovider.h"
 #include "kitmanager.h"
@@ -62,11 +63,11 @@
 #include "codestylesettingspropertiespage.h"
 #include "dependenciespanel.h"
 #include "foldernavigationwidget.h"
-#include "iprojectmanager.h"
 #include "appoutputpane.h"
 #include "processstep.h"
 #include "kitinformation.h"
 #include "projectfilewizardextension.h"
+#include "projectmanager.h"
 #include "projecttreewidget.h"
 #include "projectwindow.h"
 #include "runsettingspropertiespage.h"
@@ -340,7 +341,7 @@ public:
     QStringList m_profileMimeTypes;
     AppOutputPane *m_outputPane = nullptr;
 
-    Utils::ObjectPool<IProjectManager> m_projectManagers;
+    QHash<QString, std::function<Project *(const Utils::FileName &)>> m_projectCreators;
     QList<QPair<QString, QString> > m_recentProjects; // pair of filename, displayname
     static const int m_maxRecentProjects = 25;
 
@@ -1472,15 +1473,13 @@ void ProjectExplorerPlugin::extensionsInitialized()
     });
 
     factory->addMimeType(QStringLiteral("inode/directory"));
-    dd->m_projectManagers.forEachObject([&](IProjectManager *manager) {
-        const QString mimeType = manager->mimeType();
+    for (const QString &mimeType : dd->m_projectCreators.keys()) {
         factory->addMimeType(mimeType);
         Utils::MimeType mime = Utils::mimeTypeForName(mimeType);
         allGlobPatterns.append(mime.globPatterns());
         filterStrings.append(mime.filterString());
-
         dd->m_profileMimeTypes += mimeType;
-    });
+    }
 
     addAutoReleasedObject(factory);
 
@@ -1693,11 +1692,11 @@ ProjectExplorerPlugin::OpenProjectResult ProjectExplorerPlugin::openProjects(con
 
         Utils::MimeType mt = Utils::mimeTypeForFile(fileName);
         if (mt.isValid()) {
-            if (IProjectManager *manager = IProjectManager::managerForMimeType(mt)) {
+            if (ProjectManager::canOpenProjectForMimeType(mt)) {
                 if (!QFileInfo(filePath).isFile()) {
                     appendError(errorString,
                                 tr("Failed opening project \"%1\": Project is not a file").arg(fileName));
-                } else if (Project *pro = manager->openProject(filePath)) {
+                } else if (Project *pro = ProjectManager::openProject(mt, Utils::FileName::fromString(filePath))) {
                     QObject::connect(pro, &Project::parsingFinished, [pro]() {
                         emit SessionManager::instance()->projectFinishedParsing(pro);
                     });
@@ -1785,8 +1784,8 @@ void ProjectExplorerPluginPrivate::determineSessionToRestoreAtStartup()
 QStringList ProjectExplorerPlugin::projectFileGlobs()
 {
     QStringList result;
-    foreach (const IProjectManager *ipm, ExtensionSystem::PluginManager::getObjects<IProjectManager>()) {
-        Utils::MimeType mimeType = Utils::mimeTypeForName(ipm->mimeType());
+    for (const QString &mt : dd->m_projectCreators.keys()) {
+        Utils::MimeType mimeType = Utils::mimeTypeForName(mt);
         if (mimeType.isValid()) {
             const QStringList patterns = mimeType.globPatterns();
             if (!patterns.isEmpty())
@@ -3386,11 +3385,11 @@ ProjectExplorerSettings ProjectExplorerPlugin::projectExplorerSettings()
 QStringList ProjectExplorerPlugin::projectFilePatterns()
 {
     QStringList patterns;
-    dd->m_projectManagers.forEachObject([&](IProjectManager *pm) {
-        Utils::MimeType mt = Utils::mimeTypeForName(pm->mimeType());
+    for (const QString &mime : dd->m_projectCreators.keys()) {
+        Utils::MimeType mt = Utils::mimeTypeForName(mime);
         if (mt.isValid())
             patterns.append(mt.globPatterns());
-    });
+    }
     return patterns;
 }
 
@@ -3407,17 +3406,32 @@ QList<QPair<QString, QString> > ProjectExplorerPlugin::recentProjects()
     return dd->recentProjects();
 }
 
-IProjectManager::IProjectManager()
+void ProjectManager::registerProjectCreator(const QString &mimeType,
+    const std::function<Project *(const Utils::FileName &)> &creator)
 {
-    dd->m_projectManagers.addObject(this);
+    dd->m_projectCreators[mimeType] = creator;
 }
 
-IProjectManager *IProjectManager::managerForMimeType(const Utils::MimeType &mt)
+Project *ProjectManager::openProject(const Utils::MimeType &mt, const Utils::FileName &fileName)
 {
-    if (!mt.isValid())
-        return nullptr;
-    auto pred = [mt](IProjectManager *m) { return mt.matchesName(m->mimeType()); };
-    return dd->m_projectManagers.findObject(pred);
+    if (mt.isValid()) {
+        for (const QString &mimeType : dd->m_projectCreators.keys()) {
+            if (mt.matchesName(mimeType))
+                return dd->m_projectCreators[mimeType](fileName);
+        }
+    }
+    return nullptr;
+}
+
+bool ProjectManager::canOpenProjectForMimeType(const Utils::MimeType &mt)
+{
+    if (mt.isValid()) {
+        for (const QString &mimeType : dd->m_projectCreators.keys()) {
+            if (mt.matchesName(mimeType))
+                return true;
+        }
+    }
+    return false;
 }
 
 } // namespace ProjectExplorer
diff --git a/src/plugins/projectexplorer/projectexplorer.pro b/src/plugins/projectexplorer/projectexplorer.pro
index 65c86e5a7b..d05aec8848 100644
--- a/src/plugins/projectexplorer/projectexplorer.pro
+++ b/src/plugins/projectexplorer/projectexplorer.pro
@@ -59,7 +59,7 @@ HEADERS += projectexplorer.h \
     projectexplorerconstants.h \
     projectexplorersettings.h \
     project.h \
-    iprojectmanager.h \
+    projectmanager.h \
     currentprojectfilter.h \
     allprojectsfind.h \
     buildstep.h \
diff --git a/src/plugins/projectexplorer/projectexplorer.qbs b/src/plugins/projectexplorer/projectexplorer.qbs
index 4a0ed91714..7fd2062e9d 100644
--- a/src/plugins/projectexplorer/projectexplorer.qbs
+++ b/src/plugins/projectexplorer/projectexplorer.qbs
@@ -82,7 +82,6 @@ Project {
                 "importwidget.cpp", "importwidget.h",
                 "ioutputparser.cpp", "ioutputparser.h",
                 "ipotentialkit.h",
-                "iprojectmanager.h",
                 "itaskhandler.h",
                 "kit.cpp", "kit.h",
                 "kitchooser.cpp", "kitchooser.h",
@@ -117,6 +116,7 @@ Project {
                 "projectfilewizardextension.cpp", "projectfilewizardextension.h",
                 "projectimporter.cpp", "projectimporter.h",
                 "projectmacroexpander.cpp", "projectmacroexpander.h",
+                "projectmanager.h",
                 "projectmodels.cpp", "projectmodels.h",
                 "projectnodes.cpp", "projectnodes.h",
                 "projectpanelfactory.cpp", "projectpanelfactory.h",
diff --git a/src/plugins/projectexplorer/iprojectmanager.h b/src/plugins/projectexplorer/projectmanager.h
index 0e4d5f0733..1e90f958c1 100644
--- a/src/plugins/projectexplorer/iprojectmanager.h
+++ b/src/plugins/projectexplorer/projectmanager.h
@@ -27,26 +27,32 @@
 
 #include "projectexplorer_export.h"
 
-#include <QObject>
-
-namespace Utils { class MimeType; }
+namespace Utils {
+class FileName;
+class MimeType;
+} // Utils
 
 namespace ProjectExplorer {
 
 class Project;
 
-class PROJECTEXPLORER_EXPORT IProjectManager : public QObject
+class PROJECTEXPLORER_EXPORT ProjectManager
 {
-    Q_OBJECT
-
 public:
-    IProjectManager();
-    // Finds a IProjectManager matching the passed MimeType.
-    static IProjectManager *managerForMimeType(const Utils::MimeType &mt);
-
-    virtual QString mimeType() const = 0;
-    // FileName is a canonical path of a checked-to-exist file.
-    virtual Project *openProject(const QString &fileName) = 0;
+    static bool canOpenProjectForMimeType(const Utils::MimeType &mt);
+    static Project *openProject(const Utils::MimeType &mt, const Utils::FileName &fileName);
+
+    template <typename T>
+    static void registerProjectType(const QString &mimeType)
+    {
+        ProjectManager::registerProjectCreator(mimeType, [](const Utils::FileName &fileName) {
+            return new T(fileName);
+        });
+    }
+
+private:
+    static void registerProjectCreator(const QString &mimeType,
+                                       const std::function<Project *(const Utils::FileName &)> &);
 };
 
 } // namespace ProjectExplorer
diff --git a/src/plugins/pythoneditor/pythoneditorplugin.cpp b/src/plugins/pythoneditor/pythoneditorplugin.cpp
index 328cd59c92..67b13c5a0a 100644
--- a/src/plugins/pythoneditor/pythoneditorplugin.cpp
+++ b/src/plugins/pythoneditor/pythoneditorplugin.cpp
@@ -43,10 +43,10 @@
 #include <projectexplorer/runconfiguration.h>
 #include <projectexplorer/runconfigurationaspects.h>
 #include <projectexplorer/project.h>
+#include <projectexplorer/projectmanager.h>
+#include <projectexplorer/projectnodes.h>
 #include <projectexplorer/runnables.h>
 #include <projectexplorer/target.h>
-#include <projectexplorer/iprojectmanager.h>
-#include <projectexplorer/projectnodes.h>
 
 #include <texteditor/texteditorconstants.h>
 
@@ -77,7 +77,6 @@ const char PythonProjectContext[] = "PythonProjectContext";
 
 class PythonRunConfiguration;
 class PythonProjectFile;
-class PythonProject;
 
 static QString scriptFromId(Core::Id id)
 {
@@ -92,7 +91,7 @@ static Core::Id idFromScript(const QString &target)
 class PythonProject : public Project
 {
 public:
-    explicit PythonProject(const QString &filename);
+    explicit PythonProject(const Utils::FileName &filename);
 
     QString displayName() const override { return m_projectName; }
 
@@ -123,11 +122,11 @@ private:
 class PythonProjectFile : public Core::IDocument
 {
 public:
-    PythonProjectFile(PythonProject *parent, QString fileName) : m_project(parent)
+    PythonProjectFile(PythonProject *parent, const FileName &fileName) : m_project(parent)
     {
         setId("Generic.ProjectFile");
         setMimeType(PythonMimeType);
-        setFilePath(FileName::fromString(fileName));
+        setFilePath(fileName);
     }
 
     ReloadBehavior reloadBehavior(ChangeTrigger state, ChangeType type) const override
@@ -350,13 +349,6 @@ PythonRunConfigurationWidget::PythonRunConfigurationWidget(PythonRunConfiguratio
     setEnabled(runConfiguration->isEnabled());
 }
 
-class PythonProjectManager : public IProjectManager
-{
-public:
-    QString mimeType() const override { return QLatin1String(PythonMimeType); }
-    Project *openProject(const QString &fileName) override { return new PythonProject(fileName); }
-};
-
 class PythonRunConfigurationFactory : public IRunConfigurationFactory
 {
 public:
@@ -427,7 +419,7 @@ private:
     }
 };
 
-PythonProject::PythonProject(const QString &fileName)
+PythonProject::PythonProject(const FileName &fileName)
 {
     setId(PythonProjectId);
     setDocument(new PythonProjectFile(this, fileName));
@@ -858,7 +850,8 @@ bool PythonEditorPlugin::initialize(const QStringList &arguments, QString *error
     Q_UNUSED(arguments)
     Q_UNUSED(errorMessage)
 
-    addAutoReleasedObject(new PythonProjectManager);
+    ProjectManager::registerProjectType<PythonProject>(PythonMimeType);
+
     addAutoReleasedObject(new PythonEditorFactory);
     addAutoReleasedObject(new PythonRunConfigurationFactory);
     addAutoReleasedObject(new PythonRunControlFactory);
diff --git a/src/plugins/qbsprojectmanager/qbsproject.cpp b/src/plugins/qbsprojectmanager/qbsproject.cpp
index 31023041ed..82fe5d6310 100644
--- a/src/plugins/qbsprojectmanager/qbsproject.cpp
+++ b/src/plugins/qbsprojectmanager/qbsproject.cpp
@@ -116,8 +116,8 @@ private:
 // QbsProject:
 // --------------------------------------------------------------------
 
-QbsProject::QbsProject(const QString &fileName) :
-    m_projectName(QFileInfo(fileName).completeBaseName()),
+QbsProject::QbsProject(const FileName &fileName) :
+    m_projectName(fileName.toFileInfo().completeBaseName()),
     m_qbsProjectParser(0),
     m_qbsUpdateFutureInterface(0),
     m_parsingScheduled(false),
@@ -766,7 +766,7 @@ void QbsProject::updateDocuments(const QSet<QString> &files)
     }
     QSet<IDocument *> toAdd;
     foreach (const QString &f, filesToAdd)
-        toAdd.insert(new QbsProjectFile(this, f));
+        toAdd.insert(new QbsProjectFile(this, FileName::fromString(f)));
 
     DocumentManager::addDocuments(toAdd.toList());
     m_qbsDocuments.unite(toAdd);
diff --git a/src/plugins/qbsprojectmanager/qbsproject.h b/src/plugins/qbsprojectmanager/qbsproject.h
index 00bf5f2993..6e966c56f0 100644
--- a/src/plugins/qbsprojectmanager/qbsproject.h
+++ b/src/plugins/qbsprojectmanager/qbsproject.h
@@ -58,7 +58,7 @@ class QbsProject : public ProjectExplorer::Project
     Q_OBJECT
 
 public:
-    explicit QbsProject(const QString &filename);
+    explicit QbsProject(const Utils::FileName &filename);
     ~QbsProject() override;
 
     QString displayName() const override;
diff --git a/src/plugins/qbsprojectmanager/qbsprojectfile.cpp b/src/plugins/qbsprojectmanager/qbsprojectfile.cpp
index 21455d7e4a..59dbff968f 100644
--- a/src/plugins/qbsprojectmanager/qbsprojectfile.cpp
+++ b/src/plugins/qbsprojectmanager/qbsprojectfile.cpp
@@ -31,12 +31,12 @@
 namespace QbsProjectManager {
 namespace Internal {
 
-QbsProjectFile::QbsProjectFile(QbsProject *parent, QString fileName) : Core::IDocument(parent),
+QbsProjectFile::QbsProjectFile(QbsProject *parent, const Utils::FileName &fileName) : Core::IDocument(parent),
     m_project(parent)
 {
     setId("Qbs.ProjectFile");
-    setMimeType(QLatin1String(Constants::MIME_TYPE));
-    setFilePath(Utils::FileName::fromString(fileName));
+    setMimeType(Constants::MIME_TYPE);
+    setFilePath(fileName);
 }
 
 Core::IDocument::ReloadBehavior QbsProjectFile::reloadBehavior(ChangeTrigger state, ChangeType type) const
diff --git a/src/plugins/qbsprojectmanager/qbsprojectfile.h b/src/plugins/qbsprojectmanager/qbsprojectfile.h
index 80cf70113b..b0879fcee2 100644
--- a/src/plugins/qbsprojectmanager/qbsprojectfile.h
+++ b/src/plugins/qbsprojectmanager/qbsprojectfile.h
@@ -35,7 +35,7 @@ class QbsProject;
 class QbsProjectFile : public Core::IDocument
 {
 public:
-    QbsProjectFile(QbsProject *parent, QString fileName);
+    QbsProjectFile(QbsProject *parent, const Utils::FileName &fileName);
 
     ReloadBehavior reloadBehavior(ChangeTrigger state, ChangeType type) const override;
     bool reload(QString *errorString, ReloadFlag flag, ChangeType type) override;
diff --git a/src/plugins/qbsprojectmanager/qbsprojectmanager.cpp b/src/plugins/qbsprojectmanager/qbsprojectmanager.cpp
index 853077e86c..e9eff1f483 100644
--- a/src/plugins/qbsprojectmanager/qbsprojectmanager.cpp
+++ b/src/plugins/qbsprojectmanager/qbsprojectmanager.cpp
@@ -100,16 +100,6 @@ QbsManager::~QbsManager()
     m_instance = nullptr;
 }
 
-QString QbsManager::mimeType() const
-{
-    return QLatin1String(QmlJSTools::Constants::QBS_MIMETYPE);
-}
-
-ProjectExplorer::Project *QbsManager::openProject(const QString &fileName)
-{
-    return new QbsProject(fileName);
-}
-
 QString QbsManager::profileForKit(const ProjectExplorer::Kit *k)
 {
     if (!k)
diff --git a/src/plugins/qbsprojectmanager/qbsprojectmanager.h b/src/plugins/qbsprojectmanager/qbsprojectmanager.h
index 458690565c..ec0ab7a6ab 100644
--- a/src/plugins/qbsprojectmanager/qbsprojectmanager.h
+++ b/src/plugins/qbsprojectmanager/qbsprojectmanager.h
@@ -27,8 +27,6 @@
 
 #include "qbsprojectmanager_global.h"
 
-#include <projectexplorer/iprojectmanager.h>
-
 #include <QList>
 #include <QString>
 #include <QVariantMap>
@@ -45,7 +43,7 @@ namespace Internal {
 class DefaultPropertyProvider;
 class QbsLogSink;
 
-class QbsManager : public ProjectExplorer::IProjectManager
+class QbsManager : public QObject
 {
     Q_OBJECT
 
@@ -53,9 +51,6 @@ public:
     QbsManager();
     ~QbsManager();
 
-    QString mimeType() const override;
-    ProjectExplorer::Project *openProject(const QString &fileName) override;
-
     // QBS profiles management:
     static QString profileForKit(const ProjectExplorer::Kit *k);
     void setProfileForKit(const QString &name, const ProjectExplorer::Kit *k);
diff --git a/src/plugins/qbsprojectmanager/qbsprojectmanagerplugin.cpp b/src/plugins/qbsprojectmanager/qbsprojectmanagerplugin.cpp
index 3d7c299474..f6ca67c018 100644
--- a/src/plugins/qbsprojectmanager/qbsprojectmanagerplugin.cpp
+++ b/src/plugins/qbsprojectmanager/qbsprojectmanagerplugin.cpp
@@ -46,14 +46,18 @@
 #include <coreplugin/icore.h>
 #include <coreplugin/idocument.h>
 #include <coreplugin/fileiconprovider.h>
+
 #include <projectexplorer/buildmanager.h>
 #include <projectexplorer/project.h>
 #include <projectexplorer/projectexplorer.h>
-#include <projectexplorer/projecttree.h>
 #include <projectexplorer/projectexplorerconstants.h>
+#include <projectexplorer/projectmanager.h>
+#include <projectexplorer/projecttree.h>
 #include <projectexplorer/session.h>
 #include <projectexplorer/target.h>
+
 #include <qtsupport/qtsupportconstants.h>
+#include <qmljstools/qmljstoolsconstants.h>
 
 #include <utils/fileutils.h>
 #include <utils/qtcassert.h>
@@ -87,6 +91,8 @@ bool QbsProjectManagerPlugin::initialize(const QStringList &arguments, QString *
 
     Core::FileIconProvider::registerIconOverlayForSuffix(ProjectExplorer::Constants::FILEOVERLAY_QT, "qbs");
 
+    ProjectManager::registerProjectType<QbsProject>(QmlJSTools::Constants::QBS_MIMETYPE);
+
     //create and register objects
     addAutoReleasedObject(new QbsManager);
     addAutoReleasedObject(new QbsBuildConfigurationFactory);
diff --git a/src/plugins/qmakeprojectmanager/qmakeproject.cpp b/src/plugins/qmakeprojectmanager/qmakeproject.cpp
index 16a00a5f70..7d23622385 100644
--- a/src/plugins/qmakeprojectmanager/qmakeproject.cpp
+++ b/src/plugins/qmakeprojectmanager/qmakeproject.cpp
@@ -77,7 +77,7 @@ namespace Internal {
 class QmakeProjectFile : public Core::IDocument
 {
 public:
-    QmakeProjectFile(const QString &filePath);
+    explicit QmakeProjectFile(const FileName &fileName);
 
     ReloadBehavior reloadBehavior(ChangeTrigger state, ChangeType type) const override;
     bool reload(QString *errorString, ReloadFlag flag, ChangeType type) override;
@@ -158,11 +158,11 @@ QDebug operator<<(QDebug d, const  QmakeProjectFiles &f)
 
 // ----------- QmakeProjectFile
 
-QmakeProjectFile::QmakeProjectFile(const QString &filePath)
+QmakeProjectFile::QmakeProjectFile(const FileName &fileName)
 {
     setId("Qmake.ProFile");
-    setMimeType(QLatin1String(QmakeProjectManager::Constants::PROFILE_MIMETYPE));
-    setFilePath(FileName::fromString(filePath));
+    setMimeType(QmakeProjectManager::Constants::PROFILE_MIMETYPE);
+    setFilePath(fileName);
 }
 
 Core::IDocument::ReloadBehavior QmakeProjectFile::reloadBehavior(ChangeTrigger state, ChangeType type) const
@@ -190,7 +190,7 @@ static QList<QmakeProject *> s_projects;
   QmakeProject manages information about an individual Qt 4 (.pro) project file.
   */
 
-QmakeProject::QmakeProject(const QString &fileName) :
+QmakeProject::QmakeProject(const FileName &fileName) :
     m_projectFiles(new QmakeProjectFiles),
     m_qmakeVfs(new QMakeVfs),
     m_cppCodeModelUpdater(new CppTools::CppProjectUpdater(this))
diff --git a/src/plugins/qmakeprojectmanager/qmakeproject.h b/src/plugins/qmakeprojectmanager/qmakeproject.h
index 1be48a4f18..fb96fbc266 100644
--- a/src/plugins/qmakeprojectmanager/qmakeproject.h
+++ b/src/plugins/qmakeprojectmanager/qmakeproject.h
@@ -60,7 +60,7 @@ class  QMAKEPROJECTMANAGER_EXPORT QmakeProject : public ProjectExplorer::Project
     Q_OBJECT
 
 public:
-    explicit QmakeProject(const QString &proFile);
+    explicit QmakeProject(const Utils::FileName &proFile);
     ~QmakeProject() final;
 
     QmakeProFile *rootProFile() const;
diff --git a/src/plugins/qmakeprojectmanager/qmakeprojectmanager.cpp b/src/plugins/qmakeprojectmanager/qmakeprojectmanager.cpp
index d2d9cce65e..4a54beadd5 100644
--- a/src/plugins/qmakeprojectmanager/qmakeprojectmanager.cpp
+++ b/src/plugins/qmakeprojectmanager/qmakeprojectmanager.cpp
@@ -53,16 +53,6 @@ using namespace TextEditor;
 
 namespace QmakeProjectManager {
 
-QString QmakeManager::mimeType() const
-{
-    return QLatin1String(QmakeProjectManager::Constants::PROFILE_MIMETYPE);
-}
-
-ProjectExplorer::Project *QmakeManager::openProject(const QString &fileName)
-{
-    return new QmakeProject(fileName);
-}
-
 Node *QmakeManager::contextNode()
 {
     return ProjectTree::currentNode();
diff --git a/src/plugins/qmakeprojectmanager/qmakeprojectmanager.h b/src/plugins/qmakeprojectmanager/qmakeprojectmanager.h
index 170343a531..b7869f9374 100644
--- a/src/plugins/qmakeprojectmanager/qmakeprojectmanager.h
+++ b/src/plugins/qmakeprojectmanager/qmakeprojectmanager.h
@@ -27,7 +27,6 @@
 
 #include "qmakeprojectmanager_global.h"
 
-#include <projectexplorer/iprojectmanager.h>
 #include <projectexplorer/projectnodes.h>
 
 namespace Core { class IEditor; }
@@ -41,14 +40,12 @@ class ToolChain;
 
 namespace QmakeProjectManager {
 
-class QMAKEPROJECTMANAGER_EXPORT QmakeManager : public ProjectExplorer::IProjectManager
+class QMAKEPROJECTMANAGER_EXPORT QmakeManager : public QObject
 {
     Q_OBJECT
 
 public:
     void notifyChanged(const Utils::FileName &name);
-    QString mimeType() const override;
-    ProjectExplorer::Project *openProject(const QString &fileName) override;
 
     // Context information used in the slot implementations
     static ProjectExplorer::Node *contextNode();
diff --git a/src/plugins/qmakeprojectmanager/qmakeprojectmanagerplugin.cpp b/src/plugins/qmakeprojectmanager/qmakeprojectmanagerplugin.cpp
index df5b0c8741..a771f344d5 100644
--- a/src/plugins/qmakeprojectmanager/qmakeprojectmanagerplugin.cpp
+++ b/src/plugins/qmakeprojectmanager/qmakeprojectmanagerplugin.cpp
@@ -45,18 +45,22 @@
 #include "profilehighlighter.h"
 
 #include <coreplugin/icore.h>
-#include <projectexplorer/buildmanager.h>
-#include <projectexplorer/session.h>
-#include <projectexplorer/projecttree.h>
-#include <projectexplorer/target.h>
 #include <coreplugin/coreconstants.h>
 #include <coreplugin/actionmanager/actionmanager.h>
 #include <coreplugin/actionmanager/actioncontainer.h>
 #include <coreplugin/actionmanager/command.h>
 #include <coreplugin/editormanager/editormanager.h>
 #include <coreplugin/editormanager/ieditor.h>
+
+#include <projectexplorer/buildmanager.h>
+#include <projectexplorer/session.h>
+#include <projectexplorer/projectmanager.h>
+#include <projectexplorer/projecttree.h>
+#include <projectexplorer/target.h>
+
 #include <texteditor/texteditoractionhandler.h>
 #include <texteditor/texteditorconstants.h>
+
 #include <utils/hostosinfo.h>
 #include <utils/parameteraction.h>
 
@@ -82,6 +86,8 @@ bool QmakeProjectManagerPlugin::initialize(const QStringList &arguments, QString
     m_qmakeProjectManager = new QmakeManager;
     addAutoReleasedObject(m_qmakeProjectManager);
 
+    ProjectManager::registerProjectType<QmakeProject>(QmakeProjectManager::Constants::PROFILE_MIMETYPE);
+
     ProjectExplorer::KitManager::registerKitInformation(new QmakeKitInformation);
 
     IWizardFactory::registerFactoryCreator([] {
diff --git a/src/plugins/qmakeprojectmanager/wizards/qtwizard.cpp b/src/plugins/qmakeprojectmanager/wizards/qtwizard.cpp
index c716c4117b..f740378580 100644
--- a/src/plugins/qmakeprojectmanager/wizards/qtwizard.cpp
+++ b/src/plugins/qmakeprojectmanager/wizards/qtwizard.cpp
@@ -256,7 +256,7 @@ bool BaseQmakeProjectWizardDialog::writeUserFile(const QString &proFileName) con
     if (!m_targetSetupPage)
         return false;
 
-    QmakeProject *pro = new QmakeProject(proFileName);
+    QmakeProject *pro = new QmakeProject(Utils::FileName::fromString(proFileName));
     bool success = m_targetSetupPage->setupProject(pro);
     if (success)
         pro->saveSettings();
diff --git a/src/plugins/qmlprojectmanager/qmlproject.cpp b/src/plugins/qmlprojectmanager/qmlproject.cpp
index 909f6d14c7..3bfae5970e 100644
--- a/src/plugins/qmlprojectmanager/qmlproject.cpp
+++ b/src/plugins/qmlprojectmanager/qmlproject.cpp
@@ -30,19 +30,20 @@
 #include "qmlprojectrunconfiguration.h"
 #include "qmlprojectconstants.h"
 #include "qmlprojectnodes.h"
-#include "qmlprojectmanager.h"
 
 #include <coreplugin/icontext.h>
 #include <coreplugin/icore.h>
 #include <coreplugin/messagemanager.h>
 #include <coreplugin/documentmanager.h>
-#include <qtsupport/baseqtversion.h>
-#include <qtsupport/qtkitinformation.h>
-#include <qmljs/qmljsmodelmanagerinterface.h>
+
 #include <projectexplorer/kitinformation.h>
 #include <projectexplorer/kitmanager.h>
 #include <projectexplorer/target.h>
+
+#include <qtsupport/baseqtversion.h>
+#include <qtsupport/qtkitinformation.h>
 #include <qtsupport/qtsupportconstants.h>
+#include <qmljs/qmljsmodelmanagerinterface.h>
 
 #include <utils/algorithm.h>
 
diff --git a/src/plugins/qmlprojectmanager/qmlprojectmanager.cpp b/src/plugins/qmlprojectmanager/qmlprojectmanager.cpp
deleted file mode 100644
index 363bbbc162..0000000000
--- a/src/plugins/qmlprojectmanager/qmlprojectmanager.cpp
+++ /dev/null
@@ -1,44 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of Qt Creator.
-**
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 as published by the Free Software
-** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-****************************************************************************/
-
-#include "qmlprojectmanager.h"
-#include "qmlprojectconstants.h"
-#include "qmlproject.h"
-
-namespace QmlProjectManager {
-namespace Internal {
-
-QString Manager::mimeType() const
-{
-    return QLatin1String(Constants::QMLPROJECT_MIMETYPE);
-}
-
-ProjectExplorer::Project *Manager::openProject(const QString &fileName)
-{
-    return new QmlProject(Utils::FileName::fromString(fileName));
-}
-
-} // namespace Internal
-} // namespace QmlProjectManager
diff --git a/src/plugins/qmlprojectmanager/qmlprojectmanager.h b/src/plugins/qmlprojectmanager/qmlprojectmanager.h
deleted file mode 100644
index fca006db9b..0000000000
--- a/src/plugins/qmlprojectmanager/qmlprojectmanager.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of Qt Creator.
-**
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 as published by the Free Software
-** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-****************************************************************************/
-
-#pragma once
-
-#include <projectexplorer/iprojectmanager.h>
-
-namespace QmlProjectManager {
-namespace Internal {
-
-class Manager: public ProjectExplorer::IProjectManager
-{
-    Q_OBJECT
-
-public:
-    QString mimeType() const override;
-    ProjectExplorer::Project *openProject(const QString &fileName) override;
-};
-
-} // namespace Internal
-} // namespace QmlProjectManager
diff --git a/src/plugins/qmlprojectmanager/qmlprojectmanager.pro b/src/plugins/qmlprojectmanager/qmlprojectmanager.pro
index 8545eee471..a28281a17d 100644
--- a/src/plugins/qmlprojectmanager/qmlprojectmanager.pro
+++ b/src/plugins/qmlprojectmanager/qmlprojectmanager.pro
@@ -7,7 +7,6 @@ DEFINES += QMLPROJECTMANAGER_LIBRARY
 HEADERS += qmlproject.h \
     qmlprojectenvironmentaspect.h \
     qmlprojectplugin.h \
-    qmlprojectmanager.h \
     qmlprojectconstants.h \
     qmlprojectnodes.h \
     qmlprojectfile.h \
@@ -20,7 +19,6 @@ HEADERS += qmlproject.h \
 SOURCES += qmlproject.cpp \
     qmlprojectenvironmentaspect.cpp \
     qmlprojectplugin.cpp \
-    qmlprojectmanager.cpp \
     qmlprojectnodes.cpp \
     qmlprojectfile.cpp \
     qmlprojectrunconfiguration.cpp \
diff --git a/src/plugins/qmlprojectmanager/qmlprojectmanager.qbs b/src/plugins/qmlprojectmanager/qmlprojectmanager.qbs
index a138a95bd9..a033afb338 100644
--- a/src/plugins/qmlprojectmanager/qmlprojectmanager.qbs
+++ b/src/plugins/qmlprojectmanager/qmlprojectmanager.qbs
@@ -19,7 +19,6 @@ QtcPlugin {
             "qmlprojectconstants.h",
             "qmlprojectenvironmentaspect.cpp", "qmlprojectenvironmentaspect.h",
             "qmlprojectfile.cpp", "qmlprojectfile.h",
-            "qmlprojectmanager.cpp", "qmlprojectmanager.h",
             "qmlprojectmanager_global.h",
             "qmlprojectmanagerconstants.h",
             "qmlprojectnodes.cpp", "qmlprojectnodes.h",
diff --git a/src/plugins/qmlprojectmanager/qmlprojectplugin.cpp b/src/plugins/qmlprojectmanager/qmlprojectplugin.cpp
index 7ce0b2c9ed..a1a3666c50 100644
--- a/src/plugins/qmlprojectmanager/qmlprojectplugin.cpp
+++ b/src/plugins/qmlprojectmanager/qmlprojectplugin.cpp
@@ -24,7 +24,6 @@
 ****************************************************************************/
 
 #include "qmlprojectplugin.h"
-#include "qmlprojectmanager.h"
 #include "qmlproject.h"
 #include "qmlprojectrunconfigurationfactory.h"
 #include "fileformat/qmlprojectfileformat.h"
@@ -32,7 +31,9 @@
 #include <coreplugin/fileiconprovider.h>
 #include <coreplugin/icore.h>
 
-#include <qtsupport/qtsupportconstants.h>
+#include <projectexplorer/projectmanager.h>
+
+#include <qmljstools/qmljstoolsconstants.h>
 
 #include <QtPlugin>
 
@@ -40,6 +41,8 @@
 #include <QMessageBox>
 #include <QPushButton>
 
+using namespace ProjectExplorer;
+
 namespace QmlProjectManager {
 
 QmlProjectPlugin::QmlProjectPlugin()
@@ -53,9 +56,9 @@ bool QmlProjectPlugin::initialize(const QStringList &, QString *errorMessage)
 {
     Q_UNUSED(errorMessage)
 
-    addAutoReleasedObject(new Internal::Manager);
     addAutoReleasedObject(new Internal::QmlProjectRunConfigurationFactory);
 
+    ProjectManager::registerProjectType<QmlProject>(QmlJSTools::Constants::QMLPROJECT_MIMETYPE);
     Core::FileIconProvider::registerIconOverlayForSuffix(":/qmlproject/images/qmlproject.png", "qmlproject");
     return true;
 }