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-rw-r--r--src/library_browser.js4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/library_browser.js b/src/library_browser.js
index d6526d9c..50a8fc6f 100644
--- a/src/library_browser.js
+++ b/src/library_browser.js
@@ -446,6 +446,10 @@ mergeInto(LibraryManager.library, {
0;
},
+ getMouseWheelDelta: function(event) {
+ return Math.max(-1, Math.min(1, event.type === 'DOMMouseScroll' ? event.detail : -event.wheelDelta));
+ },
+
mouseX: 0,
mouseY: 0,
mouseMovementX: 0,