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Fix missing VST3ClientExtensions.setComponentHandler call in Studio One #1526

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Fix missing VST3ClientExtensions.setComponentHandler call in Studio One #1526

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23 changes: 22 additions & 1 deletion modules/juce_audio_plugin_client/juce_audio_plugin_client_VST3.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1240,6 +1240,24 @@ class JuceVST3EditController final : public Vst::EditController,
return kResultOk;
}


//==============================================================================
tresult PLUGIN_API setComponentHandler (Steinberg::Vst::IComponentHandler* newHandler) override
{
auto result = Vst::EditController::setComponentHandler (newHandler);
// The following is needed because Studio One calls this method after our installAudioProcessor method,
// so installAudioProcessor is not able to set a non-null IComponentHandler on VST3ClientExtensions.
// Other DAWs call this method before our installAudioProcessor (when audioProcessor is still nullptr).
if(audioProcessor != nullptr)
{
if (auto* extensions = audioProcessor->get()->getVST3ClientExtensions())
{
extensions->setIComponentHandler (componentHandler);
}
}
return result;
}

void setAudioProcessor (JuceAudioProcessor* audioProc)
{
if (audioProcessor.get() != audioProc)
Expand Down Expand Up @@ -1706,7 +1724,10 @@ class JuceVST3EditController final : public Vst::EditController,

if (auto* extensions = audioProcessor->get()->getVST3ClientExtensions())
{
extensions->setIComponentHandler (componentHandler);
if (componentHandler != nullptr)
{
extensions->setIComponentHandler (componentHandler);
}
extensions->setIHostApplication (hostContext.get());
}

Expand Down