From bfdbfa919692ffe5005c7b18eac574a98bae8200 Mon Sep 17 00:00:00 2001
From: Robbert van der Helm <mail@robbertvanderhelm.nl>
Date: Thu, 14 Jan 2021 16:16:58 +0100
Subject: [PATCH] Add stubs for IComponentHandlerBusActivation

---
 .../serialization/vst3/component-handler-proxy.cpp    |  8 ++++++++
 .../serialization/vst3/component-handler-proxy.h      |  5 +++++
 .../bridges/vst3-impls/component-handler-proxy.cpp    | 11 +++++++++++
 .../bridges/vst3-impls/component-handler-proxy.h      |  6 ++++++
 4 files changed, 30 insertions(+)

diff --git a/src/common/serialization/vst3/component-handler-proxy.cpp b/src/common/serialization/vst3/component-handler-proxy.cpp
index b6cb04a0..8cfabaa4 100644
--- a/src/common/serialization/vst3/component-handler-proxy.cpp
+++ b/src/common/serialization/vst3/component-handler-proxy.cpp
@@ -25,6 +25,7 @@ Vst3ComponentHandlerProxy::ConstructArgs::ConstructArgs(
       component_handler_args(object),
       component_handler_2_args(object),
       component_handler_3_args(object),
+      component_handler_bus_activation_args(object),
       unit_handler_args(object),
       unit_handler_2_args(object) {}
 
@@ -32,6 +33,8 @@ Vst3ComponentHandlerProxy::Vst3ComponentHandlerProxy(const ConstructArgs&& args)
     : YaComponentHandler(std::move(args.component_handler_args)),
       YaComponentHandler2(std::move(args.component_handler_2_args)),
       YaComponentHandler3(std::move(args.component_handler_3_args)),
+      YaComponentHandlerBusActivation(
+          std::move(args.component_handler_bus_activation_args)),
       YaUnitHandler(std::move(args.unit_handler_args)),
       YaUnitHandler2(std::move(args.unit_handler_2_args)),
       arguments(std::move(args)){FUNKNOWN_CTOR}
@@ -62,6 +65,11 @@ Vst3ComponentHandlerProxy::queryInterface(Steinberg::FIDString _iid,
         QUERY_INTERFACE(_iid, obj, Steinberg::Vst::IComponentHandler3::iid,
                         Steinberg::Vst::IComponentHandler3)
     }
+    if (YaComponentHandlerBusActivation::supported()) {
+        QUERY_INTERFACE(_iid, obj,
+                        Steinberg::Vst::IComponentHandlerBusActivation::iid,
+                        Steinberg::Vst::IComponentHandlerBusActivation)
+    }
     if (YaUnitHandler::supported()) {
         QUERY_INTERFACE(_iid, obj, Steinberg::Vst::IUnitHandler::iid,
                         Steinberg::Vst::IUnitHandler)
diff --git a/src/common/serialization/vst3/component-handler-proxy.h b/src/common/serialization/vst3/component-handler-proxy.h
index 993ee6d3..9248a657 100644
--- a/src/common/serialization/vst3/component-handler-proxy.h
+++ b/src/common/serialization/vst3/component-handler-proxy.h
@@ -19,6 +19,7 @@
 #include "../common.h"
 #include "component-handler/component-handler-2.h"
 #include "component-handler/component-handler-3.h"
+#include "component-handler/component-handler-bus-activation.h"
 #include "component-handler/component-handler.h"
 #include "component-handler/unit-handler-2.h"
 #include "component-handler/unit-handler.h"
@@ -37,6 +38,7 @@
 class Vst3ComponentHandlerProxy : public YaComponentHandler,
                                   public YaComponentHandler2,
                                   public YaComponentHandler3,
+                                  public YaComponentHandlerBusActivation,
                                   public YaUnitHandler,
                                   public YaUnitHandler2 {
    public:
@@ -65,6 +67,8 @@ class Vst3ComponentHandlerProxy : public YaComponentHandler,
         YaComponentHandler::ConstructArgs component_handler_args;
         YaComponentHandler2::ConstructArgs component_handler_2_args;
         YaComponentHandler3::ConstructArgs component_handler_3_args;
+        YaComponentHandlerBusActivation::ConstructArgs
+            component_handler_bus_activation_args;
         YaUnitHandler::ConstructArgs unit_handler_args;
         YaUnitHandler2::ConstructArgs unit_handler_2_args;
 
@@ -74,6 +78,7 @@ class Vst3ComponentHandlerProxy : public YaComponentHandler,
             s.object(component_handler_args);
             s.object(component_handler_2_args);
             s.object(component_handler_3_args);
+            s.object(component_handler_bus_activation_args);
             s.object(unit_handler_args);
             s.object(unit_handler_2_args);
         }
diff --git a/src/wine-host/bridges/vst3-impls/component-handler-proxy.cpp b/src/wine-host/bridges/vst3-impls/component-handler-proxy.cpp
index 425677dc..f343e65d 100644
--- a/src/wine-host/bridges/vst3-impls/component-handler-proxy.cpp
+++ b/src/wine-host/bridges/vst3-impls/component-handler-proxy.cpp
@@ -114,6 +114,17 @@ Vst3ComponentHandlerProxyImpl::createContextMenu(
     }
 }
 
+tresult PLUGIN_API Vst3ComponentHandlerProxyImpl::requestBusActivation(
+    Steinberg::Vst::MediaType type,
+    Steinberg::Vst::BusDirection dir,
+    int32 index,
+    TBool state) {
+    // TODO: Implement
+    std::cerr << "TODO: IComponentHandlerBusActivation::requestBusActivation()"
+              << std::endl;
+    return Steinberg::kNotImplemented;
+}
+
 tresult PLUGIN_API Vst3ComponentHandlerProxyImpl::notifyUnitSelection(
     Steinberg::Vst::UnitID unitId) {
     return bridge.send_message(YaUnitHandler::NotifyUnitSelection{
diff --git a/src/wine-host/bridges/vst3-impls/component-handler-proxy.h b/src/wine-host/bridges/vst3-impls/component-handler-proxy.h
index 38c5d4a1..29f121eb 100644
--- a/src/wine-host/bridges/vst3-impls/component-handler-proxy.h
+++ b/src/wine-host/bridges/vst3-impls/component-handler-proxy.h
@@ -50,6 +50,12 @@ class Vst3ComponentHandlerProxyImpl : public Vst3ComponentHandlerProxy {
     createContextMenu(Steinberg::IPlugView* plugView,
                       const Steinberg::Vst::ParamID* paramID) override;
 
+    // From `IComponentHandlerBusActivation`
+    tresult PLUGIN_API requestBusActivation(Steinberg::Vst::MediaType type,
+                                            Steinberg::Vst::BusDirection dir,
+                                            int32 index,
+                                            TBool state) override;
+
     // From `IUnitHandler`
     tresult PLUGIN_API
     notifyUnitSelection(Steinberg::Vst::UnitID unitId) override;