LanguageClient: move current settings to manager

In preparation to have relationship between clients, settings and
project to one another in the manager.

Change-Id: I00ae15abe03c54b4a58e429d67d6ff939662cce6
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

4 files changed, 54 insertions, 27 deletions

diff --git a/src/plugins/languageclient/languageclientmanager.cpp b/src/plugins/languageclient/languageclientmanager.cpp
index 07d2512e447..26603aa5845 100644
--- a/src/plugins/languageclient/languageclientmanager.cpp
+++ b/src/plugins/languageclient/languageclientmanager.cpp
@@ -31,6 +31,7 @@
 #include <coreplugin/editormanager/editormanager.h>
 #include <coreplugin/editormanager/ieditor.h>
 #include <coreplugin/find/searchresultwindow.h>
+#include <coreplugin/icore.h>
 #include <languageserverprotocol/messages.h>
 #include <projectexplorer/session.h>
 #include <projectexplorer/project.h>
@@ -80,6 +81,7 @@ LanguageClientManager::LanguageClientManager(QObject *parent)
 LanguageClientManager::~LanguageClientManager()
 {
     QTC_ASSERT(m_clients.isEmpty(), qDeleteAll(m_clients));
+    qDeleteAll(m_currentSettings);
     managerInstance = nullptr;
 }
 
@@ -178,6 +180,45 @@ QList<Client *> LanguageClientManager::clientsSupportingDocument(
     }).toList();
 }
 
+void LanguageClientManager::applySettings()
+{
+    QTC_ASSERT(instance(), return);
+    qDeleteAll(instance()->m_currentSettings);
+    instance()->m_currentSettings = Utils::transform(LanguageClientSettings::currentPageSettings(),
+                                                     [](BaseSettings *settings) {
+                                                         return settings->copy();
+                                                     });
+    LanguageClientSettings::toSettings(Core::ICore::settings(), instance()->m_currentSettings);
+
+    const QList<BaseSettings *> restarts = Utils::filtered(LanguageClientManager::currentSettings(),
+                                                           &BaseSettings::needsRestart);
+
+    for (BaseSettings *setting : restarts) {
+        if (auto client = setting->m_client) {
+            if (client->reachable())
+                client->shutdown();
+            else
+                deleteClient(client);
+        }
+        if (setting->isValid() && setting->m_enabled) {
+            const bool start = setting->m_alwaysOn
+                               || Utils::anyOf(Core::DocumentModel::openedDocuments(),
+                                               [filter = setting->m_languageFilter](
+                                                   Core::IDocument *doc) {
+                                                   return filter.isSupported(doc);
+                                               });
+            if (start)
+                setting->startClient();
+        }
+    }
+}
+
+QList<BaseSettings *> LanguageClientManager::currentSettings()
+{
+    QTC_ASSERT(instance(), return {});
+    return instance()->m_currentSettings;
+}
+
 QVector<Client *> LanguageClientManager::reachableClients()
 {
     return Utils::filtered(m_clients, &Client::reachable);
@@ -247,7 +288,7 @@ void LanguageClientManager::editorOpened(Core::IEditor *editor)
 
 void LanguageClientManager::documentOpened(Core::IDocument *document)
 {
-    for (BaseSettings *setting : LanguageClientSettings::currentSettings()) {
+    for (BaseSettings *setting : LanguageClientSettings::currentPageSettings()) {
         if (setting->m_client.isNull() && setting->m_languageFilter.isSupported(document))
             setting->startClient();
     }
diff --git a/src/plugins/languageclient/languageclientmanager.h b/src/plugins/languageclient/languageclientmanager.h
index 7a8e83caa24..7a2fcc175d9 100644
--- a/src/plugins/languageclient/languageclientmanager.h
+++ b/src/plugins/languageclient/languageclientmanager.h
@@ -69,6 +69,9 @@ public:
 
     static QList<Client *> clientsSupportingDocument(const TextEditor::TextDocument *doc);
 
+    static void applySettings();
+    static QList<BaseSettings *> currentSettings();
+
 signals:
     void shutdownFinished();
 
@@ -94,6 +97,7 @@ private:
 
     bool m_shuttingDown = false;
     QVector<Client *> m_clients;
+    QList<BaseSettings *>  m_currentSettings; // owned
     QHash<LanguageServerProtocol::MessageId, QList<Client *>> m_exclusiveRequests;
 };
 } // namespace LanguageClient
diff --git a/src/plugins/languageclient/languageclientsettings.cpp b/src/plugins/languageclient/languageclientsettings.cpp
index 32320f0658d..5f8dfceae3c 100644
--- a/src/plugins/languageclient/languageclientsettings.cpp
+++ b/src/plugins/languageclient/languageclientsettings.cpp
@@ -134,7 +134,6 @@ public:
 
 private:
     LanguageClientSettingsModel m_model;
-    QList<BaseSettings *> m_settings; // owned
     QPointer<LanguageClientSettingsPageWidget> m_widget;
 };
 
@@ -238,7 +237,6 @@ LanguageClientSettingsPage::~LanguageClientSettingsPage()
 {
     if (m_widget)
         delete m_widget;
-    qDeleteAll(m_settings);
 }
 
 void LanguageClientSettingsPage::init()
@@ -257,47 +255,31 @@ QWidget *LanguageClientSettingsPage::widget()
 
 void LanguageClientSettingsPage::apply()
 {
-    qDeleteAll(m_settings);
     if (m_widget)
         m_widget->applyCurrentSettings();
-    m_settings = Utils::transform(m_model.settings(),
-                                  [](const BaseSettings *other) { return other->copy(); });
-    LanguageClientSettings::toSettings(Core::ICore::settings(), m_settings);
+    LanguageClientManager::applySettings();
 
-    QList<BaseSettings *> restarts = Utils::filtered(m_settings, &BaseSettings::needsRestart);
-    for (auto setting : restarts + m_model.removed()) {
-        if (auto client = setting->m_client) {
+    for (BaseSettings *setting : m_model.removed()) {
+        if (Client *client = setting->m_client) {
             if (client->reachable())
                 client->shutdown();
             else
                 LanguageClientManager::deleteClient(client);
         }
     }
-    for (BaseSettings *setting : restarts) {
-        if (setting->isValid() && setting->m_enabled) {
-            const bool start = setting->m_alwaysOn
-                               || Utils::anyOf(Core::DocumentModel::openedDocuments(),
-                                               [filter = setting->m_languageFilter](
-                                                   Core::IDocument *doc) {
-                                                   return filter.isSupported(doc);
-                                               });
-            if (start)
-                setting->startClient();
-        }
-    }
 
     if (m_widget) {
         int row = m_widget->currentRow();
-        m_model.reset(m_settings);
+        m_model.reset(LanguageClientManager::currentSettings());
         m_widget->resetCurrentSettings(row);
     } else {
-        m_model.reset(m_settings);
+        m_model.reset(LanguageClientManager::currentSettings());
     }
 }
 
 void LanguageClientSettingsPage::finish()
 {
-    m_model.reset(m_settings);
+    m_model.reset(LanguageClientManager::currentSettings());
 }
 
 QList<BaseSettings *> LanguageClientSettingsPage::settings() const
@@ -461,7 +443,7 @@ QList<BaseSettings *> LanguageClientSettings::fromSettings(QSettings *settingsIn
     return settings;
 }
 
-QList<BaseSettings *> LanguageClientSettings::currentSettings()
+QList<BaseSettings *> LanguageClientSettings::currentPageSettings()
 {
     return settingsPage().settings();
 }
diff --git a/src/plugins/languageclient/languageclientsettings.h b/src/plugins/languageclient/languageclientsettings.h
index a2f4a107221..59f797e5945 100644
--- a/src/plugins/languageclient/languageclientsettings.h
+++ b/src/plugins/languageclient/languageclientsettings.h
@@ -124,7 +124,7 @@ class LanguageClientSettings
 public:
     static void init();
     static QList<BaseSettings *> fromSettings(QSettings *settings);
-    static QList<BaseSettings *> currentSettings();
+    static QList<BaseSettings *> currentPageSettings();
     static void toSettings(QSettings *settings, const QList<BaseSettings *> &languageClientSettings);
 
 private: