CMake file generation: Generate main.cpp and main.qml

Task-number: QDS-5254
Change-Id: Ide893002df72adde77ef018482a4bd13c207780f
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

6 files changed, 148 insertions, 16 deletions

diff --git a/src/plugins/qmldesigner/CMakeLists.txt b/src/plugins/qmldesigner/CMakeLists.txt
index 0fe3867a7e..467a33b40a 100644
--- a/src/plugins/qmldesigner/CMakeLists.txt
+++ b/src/plugins/qmldesigner/CMakeLists.txt
@@ -38,6 +38,7 @@ add_qtc_plugin(QmlDesigner
     designermcumanager.cpp designermcumanager.h
     richtexteditordialog.cpp richtexteditordialog.h
     editorproxy.cpp editorproxy.h
+    boilerplate.qrc
   EXPLICIT_MOC
     components/propertyeditor/propertyeditorvalue.h
     components/connectioneditor/connectionviewwidget.h
diff --git a/src/plugins/qmldesigner/boilerplate.qrc b/src/plugins/qmldesigner/boilerplate.qrc
new file mode 100644
index 0000000000..2680ec0da9
--- /dev/null
+++ b/src/plugins/qmldesigner/boilerplate.qrc
@@ -0,0 +1,5 @@
+<RCC>
+    <qresource prefix="/boilerplatetemplates">
+        <file>qmlprojectmaincpp.tpl</file>
+    </qresource>
+</RCC>
diff --git a/src/plugins/qmldesigner/generatecmakelists.cpp b/src/plugins/qmldesigner/generatecmakelists.cpp
index 7d6de3d5c7..fdadd05927 100644
--- a/src/plugins/qmldesigner/generatecmakelists.cpp
+++ b/src/plugins/qmldesigner/generatecmakelists.cpp
@@ -30,9 +30,11 @@
 
 #include <projectexplorer/projectexplorerconstants.h>
 #include <projectexplorer/project.h>
+#include <projectexplorer/runcontrol.h>
 #include <projectexplorer/session.h>
 
 #include <qmlprojectmanager/qmlprojectmanagerconstants.h>
+#include <qmlprojectmanager/qmlmainfileaspect.h>
 
 #include <utils/fileutils.h>
 
@@ -44,21 +46,15 @@
 using namespace Utils;
 
 namespace QmlDesigner {
-namespace GenerateCmakeLists {
 
-const QDir::Filters FILES_ONLY = QDir::Files;
-const QDir::Filters DIRS_ONLY = QDir::Dirs|QDir::Readable|QDir::NoDotAndDotDot;
-
-const char CMAKEFILENAME[] = "CMakeLists.txt";
-const char QMLDIRFILENAME[] = "qmldir";
+namespace GenerateCmake {
 
 void generateMenuEntry()
 {
     Core::ActionContainer *buildMenu =
             Core::ActionManager::actionContainer(ProjectExplorer::Constants::M_BUILDPROJECT);
-    const Core::Context projectCntext(QmlProjectManager::Constants::QML_PROJECT_ID);
     auto action = new QAction("Generate CMakeLists.txt files");
-    QObject::connect(action, &QAction::triggered, GenerateCmakeLists::onGenerateCmakeLists);
+    QObject::connect(action, &QAction::triggered, GenerateCmake::onGenerateCmakeLists);
     Core::Command *cmd = Core::ActionManager::registerAction(action, "QmlProject.CreateCMakeLists");
     buildMenu->addAction(cmd, ProjectExplorer::Constants::G_BUILD_RUN);
 
@@ -71,9 +67,33 @@ void generateMenuEntry()
 
 void onGenerateCmakeLists()
 {
-    generateMainCmake(ProjectExplorer::SessionManager::startupProject()->projectDirectory());
+    FilePath rootDir = ProjectExplorer::SessionManager::startupProject()->projectDirectory();
+    GenerateCmakeLists::generateMainCmake(rootDir);
+    GenerateEntryPoints::generateMainCpp(rootDir);
+    GenerateEntryPoints::generateMainQml(rootDir);
+}
+
+bool writeFile(const FilePath &filePath, const QString &fileContent)
+{
+    QFile file(filePath.toString());
+    file.open(QIODevice::WriteOnly);
+    QTextStream stream(&file);
+    stream << fileContent;
+    file.close();
+
+    return true;
 }
 
+}
+
+namespace GenerateCmakeLists {
+
+const QDir::Filters FILES_ONLY = QDir::Files;
+const QDir::Filters DIRS_ONLY = QDir::Dirs|QDir::Readable|QDir::NoDotAndDotDot;
+
+const char CMAKEFILENAME[] = "CMakeLists.txt";
+const char QMLDIRFILENAME[] = "qmldir";
+
 QStringList processDirectory(const FilePath &dir)
 {
     QStringList moduleNames;
@@ -275,11 +295,7 @@ QStringList getDirectoryTreeResources(const FilePath &dir)
 void createCmakeFile(const FilePath &dir, const QString &content)
 {
     FilePath filePath = dir.pathAppended(CMAKEFILENAME);
-    QFile cmakeFile(filePath.toString());
-    cmakeFile.open(QIODevice::WriteOnly);
-    QTextStream stream(&cmakeFile);
-    stream << content;
-    cmakeFile.close();
+    GenerateCmake::writeFile(filePath, content);
 }
 
 bool isFileBlacklisted(const QString &fileName)
@@ -289,4 +305,48 @@ bool isFileBlacklisted(const QString &fileName)
 }
 
 }
+
+namespace GenerateEntryPoints {
+bool generateEntryPointFiles(const FilePath &dir)
+{
+    bool cppOk = generateMainCpp(dir);
+    bool qmlOk = generateMainQml(dir);
+
+    return cppOk && qmlOk;
+}
+
+const char MAIN_CPPFILE_CONTENT[] = ":/boilerplatetemplates/qmlprojectmaincpp.tpl";
+const char MAIN_CPPFILE_NAME[] = "main.cpp";
+
+bool generateMainCpp(const FilePath &dir)
+{
+    QFile templatefile(MAIN_CPPFILE_CONTENT);
+    templatefile.open(QIODevice::ReadOnly);
+    QTextStream stream(&templatefile);
+    QString content = stream.readAll();
+    templatefile.close();
+
+    FilePath filePath = dir.pathAppended(MAIN_CPPFILE_NAME);
+    return GenerateCmake::writeFile(filePath, content);
 }
+
+const char MAIN_QMLFILE_CONTENT[] = "import %1Qml\n\n%2 {\n}\n";
+const char MAIN_QMLFILE_NAME[] = "main.qml";
+
+bool generateMainQml(const FilePath &dir)
+{
+    FilePath filePath = dir.pathAppended(MAIN_QMLFILE_NAME);
+    QString projectName = ProjectExplorer::SessionManager::startupProject()->displayName();
+    ProjectExplorer::RunConfiguration *runConfiguration = ProjectExplorer::SessionManager::startupRunConfiguration();
+    QString mainClass;
+
+    if (const auto aspect = runConfiguration->aspect<QmlProjectManager::QmlMainFileAspect>())
+        mainClass = FilePath::fromString(aspect->mainScript()).baseName();
+
+    return GenerateCmake::writeFile(filePath, QString(MAIN_QMLFILE_CONTENT).arg(projectName).arg(mainClass));
+}
+
+}
+
+}
+
diff --git a/src/plugins/qmldesigner/generatecmakelists.h b/src/plugins/qmldesigner/generatecmakelists.h
index a85e31bf47..18b28f88d5 100644
--- a/src/plugins/qmldesigner/generatecmakelists.h
+++ b/src/plugins/qmldesigner/generatecmakelists.h
@@ -30,9 +30,12 @@
 #include <utils/fileutils.h>
 
 namespace QmlDesigner {
-namespace GenerateCmakeLists {
+namespace GenerateCmake {
 void generateMenuEntry();
 void onGenerateCmakeLists();
+bool writeFile(const Utils::FilePath &filePath, const QString &fileContent);
+}
+namespace GenerateCmakeLists {
 void generateMainCmake(const Utils::FilePath &rootDir);
 void generateSubdirCmake(const Utils::FilePath &dir);
 QString generateModuleCmake(const Utils::FilePath &dir);
@@ -43,4 +46,9 @@ QStringList getDirectoryTreeResources(const Utils::FilePath &dir);
 void createCmakeFile(const Utils::FilePath &filePath, const QString &content);
 bool isFileBlacklisted(const QString &fileName);
 }
+namespace GenerateEntryPoints {
+bool generateEntryPointFiles(const Utils::FilePath &dir);
+bool generateMainCpp(const Utils::FilePath &dir);
+bool generateMainQml(const Utils::FilePath &dir);
+}
 }
diff --git a/src/plugins/qmldesigner/qmldesignerplugin.cpp b/src/plugins/qmldesigner/qmldesignerplugin.cpp
index 014c79b59d..b8affa11ff 100644
--- a/src/plugins/qmldesigner/qmldesignerplugin.cpp
+++ b/src/plugins/qmldesigner/qmldesignerplugin.cpp
@@ -223,7 +223,7 @@ bool QmlDesignerPlugin::initialize(const QStringList & /*arguments*/, QString *e
     if (DesignerSettings::getValue(DesignerSettingsKey::STANDALONE_MODE).toBool())
         GenerateResource::generateMenuEntry();
 
-    GenerateCmakeLists::generateMenuEntry();
+    GenerateCmake::generateMenuEntry();
 
     const QString fontPath
         = Core::ICore::resourcePath(
diff --git a/src/plugins/qmldesigner/qmlprojectmaincpp.tpl b/src/plugins/qmldesigner/qmlprojectmaincpp.tpl
new file mode 100644
index 0000000000..7b68c637d0
--- /dev/null
+++ b/src/plugins/qmldesigner/qmlprojectmaincpp.tpl
@@ -0,0 +1,58 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Quick Studio Components.
+**
+** $QT_BEGIN_LICENSE:GPL$
+** 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 or (at your option) any later version
+** approved by the KDE Free Qt Foundation. The licenses are as published by
+** the Free Software Foundation and appearing in the file LICENSE.GPL3
+** 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.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QGuiApplication>
+#include <QQmlApplicationEngine>
+
+int main(int argc, char *argv[])
+{
+    qputenv("QT_LOGGING_RULES", "qt.qml.connections=false");
+    QGuiApplication app(argc, argv);
+
+    QQmlApplicationEngine engine;
+    const QUrl url(u"qrc:Main/main.qml"_qs);
+    QObject::connect(
+                &engine, &QQmlApplicationEngine::objectCreated, &app,
+                [url](QObject *obj, const QUrl &objUrl) {
+        if (!obj && url == objUrl)
+            QCoreApplication::exit(-1);
+    },
+    Qt::QueuedConnection);
+
+    engine.addImportPath(QCoreApplication::applicationDirPath() + "/qml");
+    engine.addImportPath(":/");
+
+    engine.load(url);
+
+    if (engine.rootObjects().isEmpty()) {
+        return -1;
+    }
+
+    return app.exec();
+}