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cocoa.m: Fix scroll wheel support

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When using a mouse's scroll wheel in a guest with
the cocoa front-end, the mouse pointer moves up
and down instead of scrolling the window. This
patch fixes this problem.

Signed-off-by: John Arbuckle <programmingkidx@gmail.com>
Message-id: 20180108180707.7976-1-programmingkidx@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
John Arbuckle 2018-01-08 13:07:07 -05:00 committed by Peter Maydell
parent 8e5dc9ba49
commit ae7313e7fd
1 changed files with 19 additions and 8 deletions
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27
ui/cocoa.m
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@ -786,11 +786,24 @@ QemuCocoaView *cocoaView;
mouse_event = true;
break;
case NSEventTypeScrollWheel:
if (isMouseGrabbed) {
buttons |= ([event deltaY] < 0) ?
MOUSE_EVENT_WHEELUP : MOUSE_EVENT_WHEELDN;
}
mouse_event = true;
/*
* Send wheel events to the guest regardless of window focus.
* This is in-line with standard Mac OS X UI behaviour.
*/
/* Determine if this is a scroll up or scroll down event */
buttons = ([event scrollingDeltaY] > 0) ?
INPUT_BUTTON_WHEEL_UP : INPUT_BUTTON_WHEEL_DOWN;
qemu_input_queue_btn(dcl->con, buttons, true);
qemu_input_event_sync();
qemu_input_queue_btn(dcl->con, buttons, false);
qemu_input_event_sync();
/*
* Since deltaY also reports scroll wheel events we prevent mouse
* movement code from executing.
*/
mouse_event = false;
break;
default:
[NSApp sendEvent:event];
@ -809,9 +822,7 @@ QemuCocoaView *cocoaView;
static uint32_t bmap[INPUT_BUTTON__MAX] = {
[INPUT_BUTTON_LEFT] = MOUSE_EVENT_LBUTTON,
[INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
[INPUT_BUTTON_RIGHT] = MOUSE_EVENT_RBUTTON,
[INPUT_BUTTON_WHEEL_UP] = MOUSE_EVENT_WHEELUP,
[INPUT_BUTTON_WHEEL_DOWN] = MOUSE_EVENT_WHEELDN,
[INPUT_BUTTON_RIGHT] = MOUSE_EVENT_RBUTTON
};
qemu_input_update_buttons(dcl->con, bmap, last_buttons, buttons);
last_buttons = buttons;