Increased the movement tolerance for double-clicks when using a touch input source

modules/juce_gui_basics/mouse/juce_MouseInputSource.cpp

@@ -211,7 +211,8 @@ public:
 
             if (auto* current = getComponentUnderMouse())
             {
-                registerMouseDown (screenPos, time, *current, buttonState);
+                registerMouseDown (screenPos, time, *current, buttonState,
+                                   inputType == MouseInputSource::InputSourceType::touch);
                 sendMouseDown (*current, screenPos, time);
             }
         }
@@ -522,23 +523,26 @@ private:
         Time time;
         ModifierKeys buttons;
         uint32 peerID = 0;
+        bool isTouch = false;
 
         bool canBePartOfMultipleClickWith (const RecentMouseDown& other, int maxTimeBetweenMs) const noexcept
         {
             return time - other.time < RelativeTime::milliseconds (maxTimeBetweenMs)
-                    && std::abs (position.x - other.position.x) < 8
-                    && std::abs (position.y - other.position.y) < 8
+                    && std::abs (position.x - other.position.x) < getPositionToleranceForInputType()
+                    && std::abs (position.y - other.position.y) < getPositionToleranceForInputType()
                     && buttons == other.buttons
                     && peerID == other.peerID;
         }
+
+        int getPositionToleranceForInputType() const noexcept    { return isTouch ? 25 : 8;  }
     };
 
     RecentMouseDown mouseDowns[4];
     Time lastTime;
     bool mouseMovedSignificantlySincePressed = false;
 
-    void registerMouseDown (Point<float> screenPos, Time time,
-                            Component& component, const ModifierKeys modifiers) noexcept
+    void registerMouseDown (Point<float> screenPos, Time time, Component& component,
+                            const ModifierKeys modifiers, bool isTouchSource) noexcept
     {
         for (int i = numElementsInArray (mouseDowns); --i > 0;)
             mouseDowns[i] = mouseDowns[i - 1];
@@ -546,6 +550,7 @@ private:
         mouseDowns[0].position = screenPos;
         mouseDowns[0].time = time;
         mouseDowns[0].buttons = modifiers.withOnlyMouseButtons();
+        mouseDowns[0].isTouch = isTouchSource;
 
         if (auto* peer = component.getPeer())
             mouseDowns[0].peerID = peer->getUniqueID();