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Track Mouse Drag Outside View #108

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Merged
thecoolwinter merged 3 commits into from
Jun 23, 2025
Merged

Track Mouse Drag Outside View #108

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d6babde
Track Mouse Drag Outside View
thecoolwinter Jun 18, 2025
85122d5
Merge branch 'main' into feat/track-drag-outside-view
thecoolwinter Jun 23, 2025
a2b55a4
Use Column Selection Method
thecoolwinter Jun 23, 2025
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20 changes: 13 additions & 7 deletions Sources/CodeEditTextView/TextView/TextView+Mouse.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -87,19 +87,27 @@ extension TextView {
return
}

// We receive global events because our view received the drag event, but we need to clamp the potentially
// out-of-bounds positions to a position our layout manager can deal with.
let locationInWindow = convert(event.locationInWindow, from: nil)
let locationInView = CGPoint(
x: max(0.0, min(locationInWindow.x, frame.width)),
y: max(0.0, min(locationInWindow.y, frame.height))
)

if mouseDragAnchor == nil {
mouseDragAnchor = convert(event.locationInWindow, from: nil)
mouseDragAnchor = locationInView
super.mouseDragged(with: event)
} else {
guard let mouseDragAnchor,
let startPosition = layoutManager.textOffsetAtPoint(mouseDragAnchor),
let endPosition = layoutManager.textOffsetAtPoint(convert(event.locationInWindow, from: nil)) else {
let endPosition = layoutManager.textOffsetAtPoint(locationInView) else {
return
}

let modifierFlags = event.modifierFlags.intersection(.deviceIndependentFlagsMask)
if modifierFlags.contains(.option) {
dragColumnSelection(mouseDragAnchor: mouseDragAnchor, event: event)
dragColumnSelection(mouseDragAnchor: mouseDragAnchor, locationInView: locationInView)
} else {
dragSelection(startPosition: startPosition, endPosition: endPosition, mouseDragAnchor: mouseDragAnchor)
}
Expand Down Expand Up @@ -197,9 +205,7 @@ extension TextView {
}
}

private func dragColumnSelection(mouseDragAnchor: CGPoint, event: NSEvent) {
// Drag the selection and select in columns
let eventLocation = convert(event.locationInWindow, from: nil)
selectColumns(betweenPointA: eventLocation, pointB: mouseDragAnchor)
private func dragColumnSelection(mouseDragAnchor: CGPoint, locationInView: CGPoint) {
selectColumns(betweenPointA: mouseDragAnchor, pointB: locationInView)
}
}