QmlPreview: A dedicated class for the QmlPreviewRunWorkerFactory

Change-Id: I994f339ac1ca35e9b1dc7e2572682c4bcdb485ea
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

4 files changed, 131 insertions, 126 deletions

diff --git a/src/plugins/qmlpreview/qmlpreviewplugin.cpp b/src/plugins/qmlpreview/qmlpreviewplugin.cpp
index ddec4c7bdbe..b1c10b6ead8 100644
--- a/src/plugins/qmlpreview/qmlpreviewplugin.cpp
+++ b/src/plugins/qmlpreview/qmlpreviewplugin.cpp
@@ -42,6 +42,7 @@
 #include <android/androidconstants.h>
 
 #include <QAction>
+#include <QTimer>
 
 using namespace ProjectExplorer;
 
@@ -90,20 +91,16 @@ static std::unique_ptr<QmlDebugTranslationClient> defaultCreateDebugTranslationC
 {
     auto client = std::make_unique<QmlPreview::QmlDebugTranslationClient>(connection);
     return client;
-};
-
+}
 
 class QmlPreviewPluginPrivate : public QObject
 {
 public:
     explicit QmlPreviewPluginPrivate(QmlPreviewPlugin *parent);
 
-    void previewCurrentFile();
     void onEditorChanged(Core::IEditor *editor);
     void onEditorAboutToClose(Core::IEditor *editor);
     void setDirty();
-    void addPreview(ProjectExplorer::RunControl *preview);
-    void removePreview(ProjectExplorer::RunControl *preview);
     void attachToEditor();
     void checkEditor();
     void checkFile(const QString &fileName);
@@ -114,7 +111,7 @@ public:
     QmlPreviewRunControlList runningPreviews() const;
 
     QmlPreviewFileClassifier fileClassifier() const;
-    void setFileClassifier(QmlPreviewFileClassifier fileClassifer);
+    void setFileClassifier(QmlPreviewFileClassifier fileClassifier);
 
     float zoomFactor() const;
     void setZoomFactor(float zoomFactor);
@@ -128,60 +125,24 @@ public:
     QmlPreviewPlugin *q = nullptr;
     QThread m_parseThread;
     QString m_previewedFile;
-    QmlPreviewFileLoader m_fileLoader = nullptr;
     Core::IEditor *m_lastEditor = nullptr;
     QmlPreviewRunControlList m_runningPreviews;
     bool m_dirty = false;
-    QmlPreview::QmlPreviewFileClassifier m_fileClassifer = nullptr;
-    float m_zoomFactor = -1.0;
-    QmlPreview::QmlPreviewFpsHandler m_fpsHandler = nullptr;
     QString m_localeIsoCode;
-    QmlDebugTranslationClientCreator m_createDebugTranslationClientMethod;
 
     LocalQmlPreviewSupportFactory localRunWorkerFactory;
 
-    RunWorkerFactory runWorkerFactory{
-        [this](RunControl *runControl) {
-            QmlPreviewRunner *runner = new QmlPreviewRunner(QmlPreviewRunnerSetting{
-                runControl,
-                m_fileLoader,
-                m_fileClassifer,
-                m_fpsHandler,
-                m_zoomFactor,
-                m_localeIsoCode,
-                m_createDebugTranslationClientMethod
-            });
-            connect(q, &QmlPreviewPlugin::updatePreviews,
-                    runner, &QmlPreviewRunner::loadFile);
-            connect(q, &QmlPreviewPlugin::rerunPreviews,
-                    runner, &QmlPreviewRunner::rerun);
-            connect(runner, &QmlPreviewRunner::ready,
-                    this, &QmlPreviewPluginPrivate::previewCurrentFile);
-            connect(q, &QmlPreviewPlugin::zoomFactorChanged,
-                    runner, &QmlPreviewRunner::zoom);
-            connect(q, &QmlPreviewPlugin::localeIsoCodeChanged,
-                    runner, &QmlPreviewRunner::language);
-
-            connect(runner, &RunWorker::started, this, [this, runControl] {
-                addPreview(runControl);
-            });
-            connect(runner, &RunWorker::stopped, this, [this, runControl] {
-                removePreview(runControl);
-            });
-
-            return runner;
-        },
-        {Constants::QML_PREVIEW_RUNNER}
-    };
+    QmlPreviewRunnerSetting m_settings;
+    QmlPreviewRunWorkerFactory runWorkerFactory;
 };
 
 QmlPreviewPluginPrivate::QmlPreviewPluginPrivate(QmlPreviewPlugin *parent)
-    : q(parent)
+    : q(parent), runWorkerFactory(parent, &m_settings)
 {
-    m_fileLoader = &defaultFileLoader;
-    m_fileClassifer = &defaultFileClassifier;
-    m_fpsHandler = &defaultFpsHandler;
-    m_createDebugTranslationClientMethod = &defaultCreateDebugTranslationClientMethod;
+    m_settings.fileLoader = &defaultFileLoader;
+    m_settings.fileClassifier = &defaultFileClassifier;
+    m_settings.fpsHandler = &defaultFpsHandler;
+    m_settings.createDebugTranslationClientMethod = &defaultCreateDebugTranslationClientMethod;
 
     Core::ActionContainer *menu = Core::ActionManager::actionContainer(
                 Constants::M_BUILDPROJECT);
@@ -211,7 +172,7 @@ QmlPreviewPluginPrivate::QmlPreviewPluginPrivate(QmlPreviewPlugin *parent)
             action, [action](const QmlPreviewRunControlList &previews) {
         action->setEnabled(!previews.isEmpty());
     });
-    connect(action, &QAction::triggered, this, &QmlPreviewPluginPrivate::previewCurrentFile);
+    connect(action, &QAction::triggered, q, &QmlPreviewPlugin::previewCurrentFile);
     menu->addAction(
         Core::ActionManager::registerAction(action, "QmlPreview.PreviewFile",  Core::Context(Constants::C_PROJECT_TREE)),
         Constants::G_FILE_OTHER);
@@ -285,49 +246,49 @@ QmlPreviewRunControlList QmlPreviewPlugin::runningPreviews() const
 
 QmlPreviewFileLoader QmlPreviewPlugin::fileLoader() const
 {
-    return d->m_fileLoader;
+    return d->m_settings.fileLoader;
 }
 
 QmlPreviewFileClassifier QmlPreviewPlugin::fileClassifier() const
 {
-    return d->m_fileClassifer;
+    return d->m_settings.fileClassifier;
 }
 
-void QmlPreviewPlugin::setFileClassifier(QmlPreviewFileClassifier fileClassifer)
+void QmlPreviewPlugin::setFileClassifier(QmlPreviewFileClassifier fileClassifier)
 {
-    if (d->m_fileClassifer == fileClassifer)
+    if (d->m_settings.fileClassifier == fileClassifier)
         return;
 
-    d->m_fileClassifer = fileClassifer;
-    emit fileClassifierChanged(d->m_fileClassifer);
+    d->m_settings.fileClassifier = fileClassifier;
+    emit fileClassifierChanged(d->m_settings.fileClassifier);
 }
 
 float QmlPreviewPlugin::zoomFactor() const
 {
-    return d->m_zoomFactor;
+    return d->m_settings.zoomFactor;
 }
 
 void QmlPreviewPlugin::setZoomFactor(float zoomFactor)
 {
-    if (d->m_zoomFactor == zoomFactor)
+    if (d->m_settings.zoomFactor == zoomFactor)
         return;
 
-    d->m_zoomFactor = zoomFactor;
-    emit zoomFactorChanged(d->m_zoomFactor);
+    d->m_settings.zoomFactor = zoomFactor;
+    emit zoomFactorChanged(d->m_settings.zoomFactor);
 }
 
 QmlPreviewFpsHandler QmlPreviewPlugin::fpsHandler() const
 {
-    return d->m_fpsHandler;
+    return d->m_settings.fpsHandler;
 }
 
 void QmlPreviewPlugin::setFpsHandler(QmlPreviewFpsHandler fpsHandler)
 {
-    if (d->m_fpsHandler == fpsHandler)
+    if (d->m_settings.fpsHandler == fpsHandler)
         return;
 
-    d->m_fpsHandler = fpsHandler;
-    emit fpsHandlerChanged(d->m_fpsHandler);
+    d->m_settings.fpsHandler = fpsHandler;
+    emit fpsHandlerChanged(d->m_settings.fpsHandler);
 }
 
 QString QmlPreviewPlugin::localeIsoCode() const
@@ -348,19 +309,19 @@ void QmlPreviewPlugin::setLocaleIsoCode(const QString &localeIsoCode)
 
 void QmlPreviewPlugin::setQmlDebugTranslationClientCreator(QmlDebugTranslationClientCreator creator)
 {
-    d->m_createDebugTranslationClientMethod = creator;
+    d->m_settings.createDebugTranslationClientMethod = creator;
 }
 
 void QmlPreviewPlugin::setFileLoader(QmlPreviewFileLoader fileLoader)
 {
-    if (d->m_fileLoader == fileLoader)
+    if (d->m_settings.fileLoader == fileLoader)
         return;
 
-    d->m_fileLoader = fileLoader;
-    emit fileLoaderChanged(d->m_fileLoader);
+    d->m_settings.fileLoader = fileLoader;
+    emit fileLoaderChanged(d->m_settings.fileLoader);
 }
 
-void QmlPreviewPluginPrivate::previewCurrentFile()
+void QmlPreviewPlugin::previewCurrentFile()
 {
     const Node *currentNode = ProjectTree::currentNode();
     if (!currentNode || !currentNode->asFileNode()
@@ -368,10 +329,10 @@ void QmlPreviewPluginPrivate::previewCurrentFile()
         return;
 
     const QString file = currentNode->filePath().toString();
-    if (file != m_previewedFile)
-        q->setPreviewedFile(file);
+    if (file != d->m_previewedFile)
+        setPreviewedFile(file);
     else
-        checkFile(file);
+        d->checkFile(file);
 }
 
 void QmlPreviewPluginPrivate::onEditorChanged(Core::IEditor *editor)
@@ -420,16 +381,16 @@ void QmlPreviewPluginPrivate::setDirty()
     });
 }
 
-void QmlPreviewPluginPrivate::addPreview(ProjectExplorer::RunControl *preview)
+void QmlPreviewPlugin::addPreview(RunControl *preview)
 {
-    m_runningPreviews.append(preview);
-    emit q->runningPreviewsChanged(m_runningPreviews);
+    d->m_runningPreviews.append(preview);
+    emit runningPreviewsChanged(d->m_runningPreviews);
 }
 
-void QmlPreviewPluginPrivate::removePreview(ProjectExplorer::RunControl *preview)
+void QmlPreviewPlugin::removePreview(RunControl *preview)
 {
-    m_runningPreviews.removeOne(preview);
-    emit q->runningPreviewsChanged(m_runningPreviews);
+    d->m_runningPreviews.removeOne(preview);
+    emit runningPreviewsChanged(d->m_runningPreviews);
 }
 
 void QmlPreviewPluginPrivate::attachToEditor()
@@ -472,11 +433,11 @@ void QmlPreviewPluginPrivate::checkEditor()
 
 void QmlPreviewPluginPrivate::checkFile(const QString &fileName)
 {
-    if (!m_fileLoader)
+    if (!m_settings.fileLoader)
         return;
 
     bool success = false;
-    const QByteArray contents = m_fileLoader(fileName, &success);
+    const QByteArray contents = m_settings.fileLoader(fileName, &success);
 
     if (success) {
         emit q->checkDocument(fileName,
@@ -490,7 +451,7 @@ void QmlPreviewPluginPrivate::checkFile(const QString &fileName)
 void QmlPreviewPluginPrivate::triggerPreview(const QString &changedFile, const QByteArray &contents)
 {
     if (m_previewedFile.isEmpty())
-        previewCurrentFile();
+        q->previewCurrentFile();
     else
         emit q->updatePreviews(m_previewedFile, changedFile, contents);
 }
diff --git a/src/plugins/qmlpreview/qmlpreviewplugin.h b/src/plugins/qmlpreview/qmlpreviewplugin.h
index 569dd6f4db5..4ae3840f87c 100644
--- a/src/plugins/qmlpreview/qmlpreviewplugin.h
+++ b/src/plugins/qmlpreview/qmlpreviewplugin.h
@@ -15,15 +15,18 @@
 
 namespace Core { class IEditor; }
 
+namespace ProjectExplorer { class RunControl; }
+
 namespace QmlDebug { class QmlDebugConnection; }
 
 namespace QmlPreview {
 
-typedef bool (*QmlPreviewFileClassifier) (const QString &);
-typedef QByteArray (*QmlPreviewFileLoader)(const QString &, bool *);
-typedef void (*QmlPreviewFpsHandler)(quint16[8]);
-typedef QList<ProjectExplorer::RunControl *> QmlPreviewRunControlList;
-typedef std::function<std::unique_ptr<QmlDebugTranslationClient>(QmlDebug::QmlDebugConnection *)> QmlDebugTranslationClientCreator;
+using QmlPreviewFileClassifier = bool (*)(const QString &);
+using QmlPreviewFileLoader = QByteArray (*)(const QString &, bool *);
+using QmlPreviewFpsHandler = void (*)(quint16[8]);
+using QmlPreviewRunControlList = QList<ProjectExplorer::RunControl *>;
+using QmlDebugTranslationClientCreator =
+    std::function<std::unique_ptr<QmlDebugTranslationClient>(QmlDebug::QmlDebugConnection *)>;
 
 class QMLPREVIEW_EXPORT QmlPreviewPlugin : public ExtensionSystem::IPlugin
 {
@@ -70,6 +73,10 @@ public:
 
     void setQmlDebugTranslationClientCreator(QmlDebugTranslationClientCreator creator);
 
+    void previewCurrentFile();
+    void addPreview(ProjectExplorer::RunControl *preview);
+    void removePreview(ProjectExplorer::RunControl *preview);
+
 signals:
     void checkDocument(const QString &name, const QByteArray &contents,
                        QmlJS::Dialect::Enum dialect);
diff --git a/src/plugins/qmlpreview/qmlpreviewruncontrol.cpp b/src/plugins/qmlpreview/qmlpreviewruncontrol.cpp
index 639923cec95..dab9af41364 100644
--- a/src/plugins/qmlpreview/qmlpreviewruncontrol.cpp
+++ b/src/plugins/qmlpreview/qmlpreviewruncontrol.cpp
@@ -1,6 +1,7 @@
 // Copyright (C) 2019 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
+#include "qmlpreviewconnectionmanager.h"
 #include "qmlpreviewruncontrol.h"
 
 #include <qmlprojectmanager/qmlproject.h>
@@ -22,13 +23,39 @@
 
 using namespace ProjectExplorer;
 using namespace Utils;
+using namespace QmlPreview::Internal;
 
 namespace QmlPreview {
 
 static const QString QmlServerUrl = "QmlServerUrl";
 
-QmlPreviewRunner::QmlPreviewRunner(const QmlPreviewRunnerSetting &settings)
-    : RunWorker(settings.runControl)
+class QmlPreviewRunner : public ProjectExplorer::RunWorker
+{
+    Q_OBJECT
+
+public:
+    QmlPreviewRunner(ProjectExplorer::RunControl *runControl,
+                     const QmlPreviewRunnerSetting &settings);
+
+    void setServerUrl(const QUrl &serverUrl);
+    QUrl serverUrl() const;
+
+signals:
+    void loadFile(const QString &previewedFile, const QString &changedFile,
+                  const QByteArray &contents);
+    void language(const QString &locale);
+    void zoom(float zoomFactor);
+    void rerun();
+    void ready();
+private:
+    void start() override;
+    void stop() override;
+
+    Internal::QmlPreviewConnectionManager m_connectionManager;
+};
+
+QmlPreviewRunner::QmlPreviewRunner(RunControl *runControl, const QmlPreviewRunnerSetting &settings)
+    : RunWorker(runControl)
 {
     setId("QmlPreviewRunner");
     m_connectionManager.setFileLoader(settings.fileLoader);
@@ -38,37 +65,36 @@ QmlPreviewRunner::QmlPreviewRunner(const QmlPreviewRunnerSetting &settings)
         settings.createDebugTranslationClientMethod);
 
     connect(this, &QmlPreviewRunner::loadFile,
-            &m_connectionManager, &Internal::QmlPreviewConnectionManager::loadFile);
+            &m_connectionManager, &QmlPreviewConnectionManager::loadFile);
     connect(this, &QmlPreviewRunner::rerun,
-            &m_connectionManager, &Internal::QmlPreviewConnectionManager::rerun);
+            &m_connectionManager, &QmlPreviewConnectionManager::rerun);
 
     connect(this, &QmlPreviewRunner::zoom,
-            &m_connectionManager, &Internal::QmlPreviewConnectionManager::zoom);
+            &m_connectionManager, &QmlPreviewConnectionManager::zoom);
     connect(this, &QmlPreviewRunner::language,
-            &m_connectionManager, &Internal::QmlPreviewConnectionManager::language);
+            &m_connectionManager, &QmlPreviewConnectionManager::language);
 
-    connect(&m_connectionManager, &Internal::QmlPreviewConnectionManager::connectionOpened,
+    connect(&m_connectionManager, &QmlPreviewConnectionManager::connectionOpened,
             this, [this, settings]() {
-        if (settings.zoom > 0)
-            emit zoom(settings.zoom);
+        if (settings.zoomFactor > 0)
+            emit zoom(settings.zoomFactor);
         if (!settings.language.isEmpty())
             emit language(settings.language);
 
         emit ready();
     });
 
-    connect(&m_connectionManager, &Internal::QmlPreviewConnectionManager::restart,
-            runControl(), [this]() {
-        if (!runControl()->isRunning())
+    connect(&m_connectionManager, &QmlPreviewConnectionManager::restart, runControl, [this, runControl] {
+        if (!runControl->isRunning())
             return;
 
-        this->connect(runControl(), &RunControl::stopped, [this] {
+        this->connect(runControl, &RunControl::stopped, [this, runControl] {
             auto rc = new RunControl(ProjectExplorer::Constants::QML_PREVIEW_RUN_MODE);
-            rc->copyDataFromRunControl(runControl());
+            rc->copyDataFromRunControl(runControl);
             ProjectExplorerPlugin::startRunControl(rc);
         });
 
-        runControl()->initiateStop();
+        runControl->initiateStop();
     });
 }
 
@@ -95,6 +121,34 @@ QUrl QmlPreviewRunner::serverUrl() const
     return recordedData(QmlServerUrl).toUrl();
 }
 
+QmlPreviewRunWorkerFactory::QmlPreviewRunWorkerFactory(QmlPreviewPlugin *plugin,
+                                                       const QmlPreviewRunnerSetting *runnerSettings)
+{
+    setProducer([this, plugin, runnerSettings](RunControl *runControl) {
+        auto runner = new QmlPreviewRunner(runControl, *runnerSettings);
+        QObject::connect(plugin, &QmlPreviewPlugin::updatePreviews,
+                         runner, &QmlPreviewRunner::loadFile);
+        QObject::connect(plugin, &QmlPreviewPlugin::rerunPreviews,
+                         runner, &QmlPreviewRunner::rerun);
+        QObject::connect(runner, &QmlPreviewRunner::ready,
+                         plugin, &QmlPreviewPlugin::previewCurrentFile);
+        QObject::connect(plugin, &QmlPreviewPlugin::zoomFactorChanged,
+                         runner, &QmlPreviewRunner::zoom);
+        QObject::connect(plugin, &QmlPreviewPlugin::localeIsoCodeChanged,
+                         runner, &QmlPreviewRunner::language);
+
+        QObject::connect(runner, &RunWorker::started, plugin, [plugin, runControl] {
+            plugin->addPreview(runControl);
+        });
+        QObject::connect(runner, &RunWorker::stopped, plugin, [plugin, runControl] {
+            plugin->removePreview(runControl);
+        });
+
+        return runner;
+    });
+    addSupportedRunMode(Constants::QML_PREVIEW_RUNNER);
+}
+
 class LocalQmlPreviewSupport final : public SimpleTargetRunner
 {
 public:
@@ -150,3 +204,5 @@ LocalQmlPreviewSupportFactory::LocalQmlPreviewSupportFactory()
 }
 
 } // QmlPreview
+
+#include "qmlpreviewruncontrol.moc"
diff --git a/src/plugins/qmlpreview/qmlpreviewruncontrol.h b/src/plugins/qmlpreview/qmlpreviewruncontrol.h
index 3543bf8999e..c6b587f1128 100644
--- a/src/plugins/qmlpreview/qmlpreviewruncontrol.h
+++ b/src/plugins/qmlpreview/qmlpreviewruncontrol.h
@@ -3,45 +3,26 @@
 
 #pragma once
 
-#include "qmlpreviewconnectionmanager.h"
-#include "qmlpreviewfileontargetfinder.h"
 #include "qmlpreviewplugin.h"
+
 #include <projectexplorer/runconfiguration.h>
 
 namespace QmlPreview {
 
-struct QmlPreviewRunnerSetting {
-    ProjectExplorer::RunControl *runControl = nullptr;
+struct QmlPreviewRunnerSetting
+{
     QmlPreviewFileLoader fileLoader;
     QmlPreviewFileClassifier fileClassifier;
     QmlPreviewFpsHandler fpsHandler;
-    float zoom = 1.0;
+    float zoomFactor = 1.0;
     QString language;
     QmlDebugTranslationClientCreator createDebugTranslationClientMethod;
 };
 
-class QmlPreviewRunner : public ProjectExplorer::RunWorker
+class QmlPreviewRunWorkerFactory final : public ProjectExplorer::RunWorkerFactory
 {
-    Q_OBJECT
-
 public:
-    QmlPreviewRunner(const QmlPreviewRunnerSetting &settings);
-
-    void setServerUrl(const QUrl &serverUrl);
-    QUrl serverUrl() const;
-
-signals:
-    void loadFile(const QString &previewedFile, const QString &changedFile,
-                  const QByteArray &contents);
-    void language(const QString &locale);
-    void zoom(float zoomFactor);
-    void rerun();
-    void ready();
-private:
-    void start() override;
-    void stop() override;
-
-    Internal::QmlPreviewConnectionManager m_connectionManager;
+    QmlPreviewRunWorkerFactory(QmlPreviewPlugin *plugin, const QmlPreviewRunnerSetting *runnerSettings);
 };
 
 class LocalQmlPreviewSupportFactory final : public ProjectExplorer::RunWorkerFactory