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Added support for mousewheel on iOS

Sam Lantinga 2020-04-14 17:31:31 -07:00
parent 2b7ce8c51d
commit 14661d3f30
1 changed files with 30 additions and 0 deletions
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30
src/video/uikit/SDL_uikitview.m
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@ -66,6 +66,13 @@ extern int SDL_AppleTVRemoteOpenedAsJoystick;
UISwipeGestureRecognizer *swipeRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeGesture:)];
swipeRight.direction = UISwipeGestureRecognizerDirectionRight;
[self addGestureRecognizer:swipeRight];
#else
if (@available(iOS 13.4, *)) {
UIPanGestureRecognizer *mouseWheelRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(mouseWheelGesture:)];
mouseWheelRecognizer.allowedScrollTypesMask = UIScrollTypeMaskDiscrete;
mouseWheelRecognizer.allowedTouchTypes = @[ @(UITouchTypeIndirectPointer) ];
[self addGestureRecognizer:mouseWheelRecognizer];
}
#endif
self.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
@ -428,6 +435,29 @@ extern int SDL_AppleTVRemoteOpenedAsJoystick;
#endif /* TARGET_OS_TV || defined(__IPHONE_9_1) */
-(void)mouseWheelGesture:(UIPanGestureRecognizer *)gesture
{
if (gesture.state == UIGestureRecognizerStateBegan ||
gesture.state == UIGestureRecognizerStateChanged ||
gesture.state == UIGestureRecognizerStateEnded) {
CGPoint velocity = [gesture velocityInView:self];
if (velocity.x > 0.0f) {
velocity.x = -1.0;
} else if (velocity.x < 0.0f) {
velocity.x = 1.0f;
}
if (velocity.y > 0.0f) {
velocity.y = -1.0;
} else if (velocity.y < 0.0f) {
velocity.y = 1.0f;
}
if (velocity.x != 0.0f || velocity.y != 0.0f) {
SDL_SendMouseWheel(sdlwindow, 0, velocity.x, velocity.y, SDL_MOUSEWHEEL_NORMAL);
}
}
}
#if TARGET_OS_TV
-(void)swipeGesture:(UISwipeGestureRecognizer *)gesture
{