Implement IPlugView::setFrame()

src/plugin/bridges/vst3-impls/plug-view-proxy.cpp

@@ -122,9 +122,20 @@ tresult PLUGIN_API Vst3PlugViewProxyImpl::onFocus(TBool state) {
 
 tresult PLUGIN_API
 Vst3PlugViewProxyImpl::setFrame(Steinberg::IPlugFrame* frame) {
-    // TODO: Implement
-    bridge.logger.log("TODO: IPlugView::setFrame()");
-    return Steinberg::kNotImplemented;
+    if (frame) {
+        // We'll store the pointer for when the plugin later makes a callback to
+        // this component handler
+        plug_frame = frame;
+
+        return bridge.send_message(YaPlugView::SetFrame{
+            .owner_instance_id = owner_instance_id(),
+            .plug_frame_args = Vst3PlugFrameProxy::ConstructArgs(
+                plug_frame, owner_instance_id())});
+    } else {
+        bridge.logger.log(
+            "WARNING: Null pointer passed to 'IPlugView::setFrame()'");
+        return Steinberg::kInvalidArgument;
+    }
 }
 
 tresult PLUGIN_API Vst3PlugViewProxyImpl::canResize() {

src/plugin/bridges/vst3-impls/plug-view-proxy.h

@@ -57,6 +57,13 @@ class Vst3PlugViewProxyImpl : public Vst3PlugViewProxy {
     tresult PLUGIN_API canResize() override;
     tresult PLUGIN_API checkSizeConstraint(Steinberg::ViewRect* rect) override;
 
+    /**
+     * The `IPlugFrame` object passed by the host passed to us in
+     * `IPlugView::setFrame()`. When the plugin makes a callback on the
+     * `IPlugFrame` proxy object, we'll pass the call through to this object.
+     */
+    Steinberg::IPtr<Steinberg::IPlugFrame> plug_frame;
+
    private:
     Vst3PluginBridge& bridge;
 };

src/plugin/bridges/vst3-impls/plugin-proxy.cpp

@@ -342,10 +342,6 @@ tresult PLUGIN_API Vst3PluginProxyImpl::setComponentHandler(
         // this component handler
         component_handler = handler;
 
-        // Automatically converted smart pointers for when the plugin performs a
-        // callback later
-        host_application = host_context;
-
         return bridge.send_message(YaEditController::SetComponentHandler{
             .instance_id = instance_id(),
             .component_handler_proxy_args =