fix bug horizontal scroll when hiddenDates are present #1934
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…me of onDrag logic)
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Thank you for the library - helped me greatly with my angular ERP project, and I thought I should contribute with what I could.
While working with the library I noticed that scrolling with the following config (partial) - the horizontal scroll behaves unpredictably when hitting hiddenDates boundaries or with those boundaries present:
hiddenDates: [
{ start: new Date('2025-08-01T15:00:00.000Z'), end: new Date('2025-08-02T01:00:00.000Z'), repeat: 'daily' },
],
verticalScroll: true,
horizontalScroll: true,
horizontalScrollKey: 'shiftKey',
horizontalScrollInvert: true,
Through a lot of trial and error with console.log, I found the bug was due to the partially developed onMouseWheel (onDrag works fine though so I replicated some of onDrag logic).
This fix was adapted from my monkey-patch of my angular project (I ended up hijacking the mouse wheel back when simultaneous horizontal and vertical Scroll was not supported) - and it is my first time contributing, so excuse me if there's any mistake.
I can attach/email my original fix should you find this adaptation faulty and want the original monkey-patch.