AU: Added an option to the Projucer to enable sandbox safe AUs (required for newer versions of GarageBand)

extras/Projucer/Source/Project/jucer_Project.cpp

@@ -249,6 +249,7 @@ void Project::initialiseAudioPluginValues()
                                               CodeHelpers::makeValidIdentifier (getProjectNameString(), false, true, false) + "AU");
 
     pluginAUMainTypeValue.referTo            (projectRoot, Ids::pluginAUMainType,           getUndoManager(), getDefaultAUMainTypes(),    ",");
+    pluginAUSandboxSafe.referTo              (projectRoot, Ids::pluginAUIsSandboxSafe,      getUndoManager(), false);
     pluginVSTCategoryValue.referTo           (projectRoot, Ids::pluginVSTCategory,          getUndoManager(), getDefaultVSTCategories(),  ",");
     pluginVST3CategoryValue.referTo          (projectRoot, Ids::pluginVST3Category,         getUndoManager(), getDefaultVST3Categories(), ",");
     pluginRTASCategoryValue.referTo          (projectRoot, Ids::pluginRTASCategory,         getUndoManager(), getDefaultRTASCategories(), ",");
@@ -1062,6 +1063,10 @@ void Project::createAudioPluginPropertyEditors (PropertyListBuilder& props)
     props.add (new MultiChoicePropertyComponent (pluginAUMainTypeValue, "Plugin AU Main Type", getAllAUMainTypeStrings(), getAllAUMainTypeVars(), 1),
                "AU main type.");
 
+    props.add (new ChoicePropertyComponent (pluginAUSandboxSafe, "Plugin AU is sandbox safe"),
+                  "Check this box if your plug-in is sandbox safe. A sand-box safe plug-in is loaded in a restricted path and can only access it's own bundle resources and "
+                  "the Music folder. Your plug-in must be able to deal with this. Newer versions of GarageBand require this to be enabled.");
+
     {
         Array<var> vst3CategoryVars;
         for (auto s : getAllVST3CategoryStrings())
@@ -1626,6 +1631,11 @@ String Project::getAUMainTypeString() const noexcept
     return {};
 }
 
+bool Project::isAUSandBoxSafe() const noexcept
+{
+    return pluginAUSandboxSafe.get();
+}
+
 String Project::getVSTCategoryString() const noexcept
 {
     auto v = pluginVSTCategoryValue.get();

extras/Projucer/Source/Project/jucer_Project.h

@@ -192,6 +192,7 @@ public:
     Array<var> getDefaultRTASCategories() const noexcept;
 
     String getAUMainTypeString() const noexcept;
+    bool isAUSandBoxSafe() const noexcept;
     String getVSTCategoryString() const noexcept;
     String getVST3CategoryString() const noexcept;
     int getAAXCategory() const noexcept;
@@ -407,7 +408,7 @@ private:
 
     ValueWithDefault pluginFormatsValue, pluginNameValue, pluginDescriptionValue, pluginManufacturerValue, pluginManufacturerCodeValue,
                      pluginCodeValue, pluginChannelConfigsValue, pluginCharacteristicsValue, pluginAUExportPrefixValue, pluginAAXIdentifierValue,
-                     pluginAUMainTypeValue, pluginRTASCategoryValue, pluginVSTCategoryValue, pluginVST3CategoryValue, pluginAAXCategoryValue;
+                     pluginAUMainTypeValue, pluginAUSandboxSafe, pluginRTASCategoryValue, pluginVSTCategoryValue, pluginVST3CategoryValue, pluginAAXCategoryValue;
 
     //==============================================================================
     std::unique_ptr<CompileEngineSettings> compileEngineSettings;

extras/Projucer/Source/ProjectSaving/jucer_ProjectExport_Xcode.h

@@ -1565,6 +1565,9 @@ public:
             addPlistDictionaryKey (dict, "subtype", pluginSubType);
             addPlistDictionaryKeyInt (dict, "version", owner.project.getVersionAsHexInteger());
 
+            if (owner.project.isAUSandBoxSafe())
+                addPlistDictionaryKeyBool (dict, "sandboxSafe", true);
+
             xcodeExtraPListEntries.add (plistKey);
             xcodeExtraPListEntries.add (plistEntry);
         }

extras/Projucer/Source/Utility/Helpers/jucer_PresetIDs.h

@@ -320,6 +320,7 @@ namespace Ids
     DECLARE_ID (pluginVST3Category);
     DECLARE_ID (pluginAUExportPrefix);
     DECLARE_ID (pluginAUMainType);
+    DECLARE_ID (pluginAUIsSandboxSafe);
     DECLARE_ID (pluginRTASCategory);
     DECLARE_ID (pluginRTASDisableBypass);
     DECLARE_ID (pluginRTASDisableMultiMono);

extras/Projucer/Source/Utility/PIPs/jucer_PIPGenerator.cpp

@@ -460,6 +460,7 @@ Result PIPGenerator::setProjectSettings (ValueTree& jucerTree)
     {
         jucerTree.setProperty (Ids::projectType, "audioplug", nullptr);
         jucerTree.setProperty (Ids::pluginManufacturer, metadata[Ids::vendor], nullptr);
+        jucerTree.setProperty (Ids::pluginAUIsSandboxSafe, "1", nullptr);
 
         StringArray pluginFormatsToBuild (Ids::buildVST3.toString(), Ids::buildAU.toString(), Ids::buildStandalone.toString());
         pluginFormatsToBuild.addArray (getExtraPluginFormatsToBuild());