Projucer: Add inter-app-audio entitlement to iOS AU hosts

extras/Build/juce_build_tools/utils/juce_Entitlements.cpp

@@ -49,7 +49,7 @@ namespace build_tools
 
         if (isiOS)
         {
-            if (isAudioPluginProject && shouldEnableIAA)
+            if ((isAudioPluginProject && shouldEnableIAA) || isAUPluginHost)
                 entitlements.set ("inter-app-audio", "<true/>");
 
             if (isiCloudPermissionsEnabled)

extras/Build/juce_build_tools/utils/juce_Entitlements.h

@@ -36,6 +36,7 @@ namespace build_tools
         bool isiOS                          = false;
         bool isAudioPluginProject           = false;
         bool shouldEnableIAA                = false;
+        bool isAUPluginHost                 = false;
         bool isiCloudPermissionsEnabled     = false;
         bool isPushNotificationsEnabled     = false;
         bool isAppGroupsEnabled             = false;

extras/Projucer/Source/Project/jucer_Project.cpp

@@ -103,6 +103,7 @@ Project::Project (const File& f)
 
     setFile (f);
 
+    createEnabledModulesList();
     initialiseProjectValues();
     initialiseMainGroup();
     initialiseAudioPluginValues();
@@ -677,6 +678,7 @@ Result Project::loadDocument (const File& file)
     projectRoot = newTree;
     projectRoot.addListener (this);
 
+    createEnabledModulesList();
     initialiseProjectValues();
     initialiseMainGroup();
     initialiseAudioPluginValues();
@@ -2324,27 +2326,27 @@ int Project::getARATransformationFlags() const noexcept
 }
 
 //==============================================================================
-bool Project::isAUPluginHost()
+bool Project::isAUPluginHost() const
 {
     return getEnabledModules().isModuleEnabled ("juce_audio_processors") && isConfigFlagEnabled ("JUCE_PLUGINHOST_AU", false);
 }
 
-bool Project::isVSTPluginHost()
+bool Project::isVSTPluginHost() const
 {
     return getEnabledModules().isModuleEnabled ("juce_audio_processors") && isConfigFlagEnabled ("JUCE_PLUGINHOST_VST", false);
 }
 
-bool Project::isVST3PluginHost()
+bool Project::isVST3PluginHost() const
 {
     return getEnabledModules().isModuleEnabled ("juce_audio_processors") && isConfigFlagEnabled ("JUCE_PLUGINHOST_VST3", false);
 }
 
-bool Project::isLV2PluginHost()
+bool Project::isLV2PluginHost() const
 {
     return getEnabledModules().isModuleEnabled ("juce_audio_processors") && isConfigFlagEnabled ("JUCE_PLUGINHOST_LV2", false);
 }
 
-bool Project::isARAPluginHost()
+bool Project::isARAPluginHost() const
 {
     return (isVST3PluginHost() || isAUPluginHost()) && isConfigFlagEnabled ("JUCE_PLUGINHOST_ARA", false);
 }
@@ -2505,12 +2507,21 @@ Array<var> Project::getDefaultARATransformationFlags() const noexcept
 }
 
 //==============================================================================
-EnabledModulesList& Project::getEnabledModules()
+template <typename This>
+auto& Project::getEnabledModulesImpl (This& t)
 {
-    if (enabledModulesList == nullptr)
-        enabledModulesList.reset (new EnabledModulesList (*this, projectRoot.getOrCreateChildWithName (Ids::MODULES, nullptr)));
+    // This won't work until you've loaded a project!
+    jassert (t.enabledModulesList != nullptr);
 
-    return *enabledModulesList;
+    return *t.enabledModulesList;
+}
+
+      EnabledModulesList& Project::getEnabledModules()            { return getEnabledModulesImpl (*this); }
+const EnabledModulesList& Project::getEnabledModules() const      { return getEnabledModulesImpl (*this); }
+
+void Project::createEnabledModulesList()
+{
+    enabledModulesList = std::make_unique<EnabledModulesList> (*this, projectRoot.getOrCreateChildWithName (Ids::MODULES, nullptr));
 }
 
 static StringArray getModulePathsFromExporters (Project& project, bool onlyThisOS)

extras/Projucer/Source/Project/jucer_Project.h

@@ -339,11 +339,11 @@ public:
     String getLV2URI() const        { return pluginLV2URIValue.get(); }
 
     //==============================================================================
-    bool isAUPluginHost();
-    bool isVSTPluginHost();
-    bool isVST3PluginHost();
-    bool isLV2PluginHost();
-    bool isARAPluginHost();
+    bool isAUPluginHost()   const;
+    bool isVSTPluginHost()  const;
+    bool isVST3PluginHost() const;
+    bool isLV2PluginHost()  const;
+    bool isARAPluginHost()  const;
 
     //==============================================================================
     bool shouldBuildTargetType (build_tools::ProjectType::Target::Type targetType) const noexcept;
@@ -494,7 +494,10 @@ public:
     bool isConfigFlagEnabled (const String& name, bool defaultIsEnabled = false) const;
 
     //==============================================================================
-    EnabledModulesList& getEnabledModules();
+    void createEnabledModulesList();
+
+          EnabledModulesList& getEnabledModules();
+    const EnabledModulesList& getEnabledModules() const;
 
     AvailableModulesList& getExporterPathsModulesList()  { return exporterPathsModulesList; }
     void rescanExporterPathModules (bool async = false);
@@ -547,6 +550,10 @@ private:
     void valueTreeChildRemoved (ValueTree&, ValueTree&, int) override;
     void valueTreeChildOrderChanged (ValueTree&, int, int) override;
 
+    //==============================================================================
+    template <typename This>
+    static auto& getEnabledModulesImpl (This&);
+
     //==============================================================================
     struct ProjectFileModificationPoller  : private Timer
     {

extras/Projucer/Source/ProjectSaving/jucer_ProjectExport_Xcode.h

@@ -1316,7 +1316,9 @@ public:
 
             capabilities["ApplicationGroups.iOS"] = owner.iOS && owner.isAppGroupsEnabled();
             capabilities["InAppPurchase"]         = owner.isInAppPurchasesEnabled();
-            capabilities["InterAppAudio"]         = owner.iOS && type == Target::StandalonePlugIn && owner.getProject().shouldEnableIAA();
+            capabilities["InterAppAudio"]         = owner.iOS && ((type == Target::StandalonePlugIn
+                                                                   && owner.getProject().shouldEnableIAA())
+                                                                  || owner.getProject().isAUPluginHost());
             capabilities["Push"]                  = owner.isPushNotificationsEnabled();
             capabilities["Sandbox"]               = type == Target::AudioUnitv3PlugIn || owner.isAppSandboxEnabled();
             capabilities["HardenedRuntime"]       = owner.isHardenedRuntimeEnabled();
@@ -1377,7 +1379,8 @@ public:
              || owner.isAppSandboxEnabled()
              || owner.isHardenedRuntimeEnabled()
              || owner.isNetworkingMulticastEnabled()
-             || (owner.isiOS() && owner.isiCloudPermissionsEnabled()))
+             || (owner.isiOS() && owner.isiCloudPermissionsEnabled())
+             || (owner.isiOS() && owner.getProject().isAUPluginHost()))
                 return true;
 
             if (owner.project.isAudioPluginProject()
@@ -3155,6 +3158,7 @@ private:
         options.isiOS                           = isiOS();
         options.isAudioPluginProject            = project.isAudioPluginProject();
         options.shouldEnableIAA                 = project.shouldEnableIAA();
+        options.isAUPluginHost                  = project.isAUPluginHost();
         options.isiCloudPermissionsEnabled      = isiCloudPermissionsEnabled();
         options.isPushNotificationsEnabled      = isPushNotificationsEnabled();
         options.isAppGroupsEnabled              = isAppGroupsEnabled();