ProjectExplorer: Simplify availableCreationIds(Target *parent) use

Similarly to before, it's either an empty list, or a single id.

So use a function with bool return saying whether an id is returned
and a plain accessor the the id.

Change-Id: Ied2900f23bdb4c264d9fb1944c60bed734d1d8bb
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/projectexplorer/deployconfiguration.cpp

@@ -151,11 +151,14 @@ DeployConfigurationFactory::~DeployConfigurationFactory()
     g_deployConfigurationFactories.removeOne(this);
 }
 
-QList<Core::Id> DeployConfigurationFactory::availableCreationIds(Target *parent) const
+bool DeployConfigurationFactory::canOffer(Target *parent) const
 {
-    if (canHandle(parent) && hasAvailableBuildTargets(parent))
-        return {m_deployConfigBaseId};
-    return {};
+    return canHandle(parent) && hasAvailableBuildTargets(parent);
+}
+
+Core::Id DeployConfigurationFactory::creationId() const
+{
+    return m_deployConfigBaseId;
 }
 
 bool DeployConfigurationFactory::hasAvailableBuildTargets(Target *) const
@@ -239,7 +242,7 @@ QList<DeployConfigurationFactory *> DeployConfigurationFactory::find(Target *par
 {
     return Utils::filtered(g_deployConfigurationFactories,
         [&parent](DeployConfigurationFactory *factory) {
-            return !factory->availableCreationIds(parent).isEmpty();
+            return factory->canOffer(parent);
         });
 }
 

src/plugins/projectexplorer/deployconfiguration.h

@@ -80,11 +80,12 @@ public:
     DeployConfigurationFactory operator=(const DeployConfigurationFactory &) = delete;
     virtual ~DeployConfigurationFactory();
 
-    // used to show the list of possible additons to a target, returns a list of types
-    QList<Core::Id> availableCreationIds(Target *parent) const;
+    // return possible addition to a target, invalid if there is none
+    Core::Id creationId() const;
     // the name to display to the user
     QString defaultDisplayName() const;
 
+    bool canOffer(Target *parent) const;
     bool canCreate(Target *parent, Core::Id id) const;
     virtual DeployConfiguration *create(Target *parent, Core::Id id);
 

src/plugins/projectexplorer/runsettingspropertiespage.cpp

@@ -367,23 +367,21 @@ void RunSettingsWidget::aboutToShowDeployMenu()
         return;
 
     foreach (DeployConfigurationFactory *factory, factories) {
-        QList<Core::Id> ids = factory->availableCreationIds(m_target);
-        foreach (Core::Id id, ids) {
-            QAction *action = m_addDeployMenu->addAction(factory->defaultDisplayName());
-            DeployFactoryAndId data = {factory, id};
-            action->setData(QVariant::fromValue(data));
-            connect(action, &QAction::triggered, [factory, id, this]() {
-                if (!factory->canCreate(m_target, id))
-                    return;
-                DeployConfiguration *newDc = factory->create(m_target, id);
-                if (!newDc)
-                    return;
-                QTC_CHECK(!newDc || newDc->id() == id);
-                m_target->addDeployConfiguration(newDc);
-                SessionManager::setActiveDeployConfiguration(m_target, newDc, SetActive::Cascade);
-                m_removeDeployToolButton->setEnabled(m_target->deployConfigurations().size() > 1);
-            });
-        }
+        QAction *action = m_addDeployMenu->addAction(factory->defaultDisplayName());
+        const Core::Id id = factory->creationId();
+        DeployFactoryAndId data = {factory, id};
+        action->setData(QVariant::fromValue(data));
+        connect(action, &QAction::triggered, [factory, id, this]() {
+            if (!factory->canCreate(m_target, id))
+                return;
+            DeployConfiguration *newDc = factory->create(m_target, id);
+            if (!newDc)
+                return;
+            QTC_CHECK(!newDc || newDc->id() == id);
+            m_target->addDeployConfiguration(newDc);
+            SessionManager::setActiveDeployConfiguration(m_target, newDc, SetActive::Cascade);
+            m_removeDeployToolButton->setEnabled(m_target->deployConfigurations().size() > 1);
+        });
     }
 }
 

src/plugins/projectexplorer/target.cpp

@@ -513,7 +513,7 @@ void Target::updateDefaultDeployConfigurations()
 
     QList<Core::Id> dcIds;
     foreach (DeployConfigurationFactory *dcFactory, dcFactories)
-        dcIds.append(dcFactory->availableCreationIds(this));
+        dcIds.append(dcFactory->creationId());
 
     QList<DeployConfiguration *> dcList = deployConfigurations();
     QList<Core::Id> toCreate = dcIds;