QmlProject: move/rename MainQmlFileAspect to QmlMainFileAspect

Will be used later in LocalQmlPreviewSupport so add also
export and dependencies in the build system files.

Change-Id: Ie5d26e7b89342c3ae3ff682a73194f240b71c21a
Reviewed-by: hjk <hjk@qt.io>

src/plugins/qmlprojectmanager/qmlmainfileaspect.h

@@ -0,0 +1,83 @@
+/****************************************************************************
+**
+** 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 "qmlprojectmanager_global.h"
+
+#include <projectexplorer/runconfigurationaspects.h>
+
+#include <QStandardItemModel>
+
+namespace Core {
+class IEditor;
+}
+class QComboBox;
+
+namespace QmlProjectManager {
+
+class QmlProject;
+class QmlBuildSystem;
+
+class QMLPROJECTMANAGER_EXPORT QmlMainFileAspect : public ProjectExplorer::ProjectConfigurationAspect
+{
+public:
+    explicit QmlMainFileAspect(ProjectExplorer::Target *target);
+    ~QmlMainFileAspect() override;
+
+    enum MainScriptSource {
+        FileInEditor,
+        FileInProjectFile,
+        FileInSettings
+    };
+
+    void addToLayout(ProjectExplorer::LayoutBuilder &builder) final;
+    void toMap(QVariantMap &map) const final;
+    void fromMap(const QVariantMap &map) final;
+
+    void updateFileComboBox();
+    MainScriptSource mainScriptSource() const;
+    void setMainScript(int index);
+
+    void setScriptSource(MainScriptSource source, const QString &settingsPath = QString());
+
+    QString mainScript() const;
+    void changeCurrentFile(Core::IEditor *editor = nullptr);
+    bool isQmlFilePresent();
+    QmlBuildSystem *qmlBuildSystem() const;
+
+public:
+
+    ProjectExplorer::Target *m_target = nullptr;
+    QPointer<QComboBox> m_fileListCombo;
+    QStandardItemModel m_fileListModel;
+    QString m_scriptFile;
+    // absolute path to current file (if being used)
+    QString m_currentFileFilename;
+    // absolute path to selected main script (if being used)
+    QString m_mainScriptFilename;
+};
+
+} // namespace QmlProjectManager