Minor fix for ResamplingAudioSource, minor addition to Slider.

modules/juce_audio_basics/sources/juce_ResamplingAudioSource.cpp

@@ -169,7 +169,7 @@ void ResamplingAudioSource::getNextAudioBlock (const AudioSourceChannelInfo& inf
         for (int i = channelsToProcess; --i >= 0;)
             applyFilter (info.buffer->getSampleData (i, info.startSample), info.numSamples, filterStates[i]);
     }
-    else if (localRatio <= 1.0001)
+    else if (localRatio <= 1.0001 && info.numSamples > 0)
     {
         // if the filter's not currently being applied, keep it stoked with the last couple of samples to avoid discontinuities
         for (int i = channelsToProcess; --i >= 0;)

modules/juce_gui_basics/widgets/juce_Slider.cpp

@@ -296,13 +296,17 @@ void Slider::setSliderSnapsToMousePosition (const bool shouldSnapToMouse)
     snapsToMousePos = shouldSnapToMouse;
 }
 
-void Slider::setPopupDisplayEnabled (const bool enabled,
-                                     Component* const parentComponentToUse)
+void Slider::setPopupDisplayEnabled (const bool enabled, Component* const parentComponentToUse)
 {
     popupDisplayEnabled = enabled;
     parentForPopupDisplay = parentComponentToUse;
 }
 
+Component* Slider::getCurrentPopupDisplay() const noexcept
+{
+    return popupDisplay.get();
+}
+
 //==============================================================================
 void Slider::colourChanged()
 {

modules/juce_gui_basics/widgets/juce_Slider.h

@@ -607,6 +607,12 @@ public:
     void setPopupDisplayEnabled (bool isEnabled,
                                  Component* parentComponentToUse);
 
+    /** If a popup display is enabled and is currently visible, this returns the component
+        that is being shown, or nullptr if none is currently in use.
+        @see setPopupDisplayEnabled
+    */
+    Component* getCurrentPopupDisplay() const noexcept;
+
     /** If this is set to true, then right-clicking on the slider will pop-up
         a menu to let the user change the way it works.