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Overview
| Comment: | Fix [92e4081d74]: Undefined behavior while touchpad scrolling |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | core-9-0-branch |
| Files: | files | file ages | folders |
| SHA3-256: |
07d632f4ee7d9faebd47d0c3a8143962 |
| User & Date: | jan.nijtmans 2025-08-16 22:12:21.495 |
References
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2025-08-16
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| 22:15 | • Closed ticket [92e4081d]: Undefined behavior while touchpad scrolling plus 6 other changes artifact: c64bd65d user: jan.nijtmans | |
Context
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2025-08-16
| ||
| 22:19 | Update changes check-in: 886f6e66 user: jan.nijtmans tags: core-9-0-branch | |
| 22:12 | Fix [92e4081d74]: Undefined behavior while touchpad scrolling check-in: 07d632f4 user: jan.nijtmans tags: core-9-0-branch | |
| 15:55 | Proposed fix (slightly modified) for [92e4081d74]: Undefined behavior while touchpad scrolling Closed-Leaf check-in: a4410a92 user: jan.nijtmans tags: bug-92e4081d74 | |
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2025-08-15
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| 22:23 | Merge 8.6 check-in: d266a4ff user: jan.nijtmans tags: core-9-0-branch | |
Changes
Changes to macosx/tkMacOSXMouseEvent.c.
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541 542 543 544 545 546 547 |
}
} else {
Tk_UpdatePointer(target, global.x, global.y, state);
}
} else {
static unsigned long scrollCounter = 0;
| | | | | 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 |
}
} else {
Tk_UpdatePointer(target, global.x, global.y, state);
}
} else {
static unsigned long scrollCounter = 0;
unsigned delta;
CGFloat Delta;
Bool deltaIsPrecise = [theEvent hasPreciseScrollingDeltas];
XEvent xEvent = {0};
xEvent.xbutton.x = win_x;
xEvent.xbutton.y = win_y;
xEvent.xbutton.x_root = global.x;
xEvent.xbutton.y_root = global.y;
xEvent.xany.send_event = false;
xEvent.xany.display = Tk_Display(target);
xEvent.xany.window = Tk_WindowId(target);
if (deltaIsPrecise) {
unsigned deltaX = (unsigned)(int)[theEvent scrollingDeltaX];
unsigned deltaY = (unsigned)(int)[theEvent scrollingDeltaY];
delta = (deltaX << 16) | (deltaY & 0xffff);
if (delta != 0) {
xEvent.type = TouchpadScroll;
xEvent.xbutton.state = state;
xEvent.xkey.keycode = delta;
xEvent.xany.serial = scrollCounter++;
Tk_QueueWindowEvent(&xEvent, TCL_QUEUE_TAIL);
|
| ︙ | ︙ |
Changes to win/tkWinX.c.
| ︙ | ︙ | |||
1192 1193 1194 1195 1196 1197 1198 |
if ( mod != 0 || lastMod != 0) {
/* High resolution. */
event.x.type = TouchpadScroll;
event.x.xany.send_event = -1;
event.key.nbytes = 0;
event.x.xkey.state = state;
event.x.xany.serial = scrollCounter++;
| | | 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 |
if ( mod != 0 || lastMod != 0) {
/* High resolution. */
event.x.type = TouchpadScroll;
event.x.xany.send_event = -1;
event.key.nbytes = 0;
event.x.xkey.state = state;
event.x.xany.serial = scrollCounter++;
event.x.xkey.keycode = -((unsigned int)delta << 16);
} else {
event.x.type = MouseWheelEvent;
event.x.xany.send_event = -1;
event.key.nbytes = 0;
event.x.xkey.state |= ShiftMask;
event.x.xkey.keycode = delta;
}
|
| ︙ | ︙ |