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Rewrite loading frame management (again)

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This commit is contained in:
Cameron Gutman
2018-12-28 16:45:05 -08:00
parent 611358e35c
commit 08e169eb23
3 changed files with 43 additions and 83 deletions
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71
Limelight/ViewControllers/MainFrameViewController.m
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@@ -48,7 +48,6 @@
NSArray* _sortedAppList;
NSCache* _boxArtCache;
bool _background;
dispatch_semaphore_t _loadingFrameSemaphore;
#if TARGET_OS_TV
UITapGestureRecognizer* _menuRecognizer;
#else
@@ -383,20 +382,6 @@ static NSMutableSet* hostList;
return topController;
}
- (BOOL) loadingFrameIsPresented {
UIViewController *nextController = [UIApplication sharedApplication].keyWindow.rootViewController;
while (nextController) {
if (nextController == _loadingFrame) {
return YES;
}
nextController = nextController.presentedViewController;
}
return NO;
}
- (void)hostLongClicked:(TemporaryHost *)host view:(UIView *)view {
Log(LOG_D, @"Long clicked host: %@", host.name);
UIAlertController* longClickAlert = [UIAlertController alertControllerWithTitle:host.name message:@"" preferredStyle:UIAlertControllerStyleActionSheet];
@@ -677,66 +662,18 @@ static NSMutableSet* hostList;
}
- (void) showLoadingFrame:(void (^)(void))completion {
// Wait for all loading frame operations to complete before starting this one
dispatch_semaphore_wait(_loadingFrameSemaphore, DISPATCH_TIME_FOREVER);
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
dispatch_async(dispatch_get_main_queue(), ^{
// If loading frame is already active, just complete it now otherwise
// we may not get a completion callback.
if ([self loadingFrameIsPresented]) {
dispatch_semaphore_signal(self->_loadingFrameSemaphore);
if (completion) {
completion();
}
return;
}
// Avoid animating this as it significantly prolongs the loading frame's time on screen
[[self activeViewController] presentViewController:self->_loadingFrame animated:NO completion:^{
dispatch_semaphore_signal(self->_loadingFrameSemaphore);
if (completion) {
completion();
}
}];
});
});
[_loadingFrame showLoadingFrame:completion];
}
- (void) hideLoadingFrame:(void (^)(void))completion {
// Wait for all loading frame operations to complete before starting this one
dispatch_semaphore_wait(_loadingFrameSemaphore, DISPATCH_TIME_FOREVER);
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
dispatch_async(dispatch_get_main_queue(), ^{
// If loading frame is already dismissed, just complete it now otherwise
// we may not get a completion callback.
if (![self loadingFrameIsPresented]) {
[self enableNavigation];
dispatch_semaphore_signal(self->_loadingFrameSemaphore);
if (completion) {
completion();
}
return;
}
// See comment above in showLoadingFrame about why we don't animate this
[self->_loadingFrame dismissViewControllerAnimated:NO completion:^{
[self enableNavigation];
dispatch_semaphore_signal(self->_loadingFrameSemaphore);
if (completion) {
completion();
}
}];
});
});
[self enableNavigation];
[_loadingFrame dismissLoadingFrame:completion];
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Ensure only one loading frame operation can take place at a time
_loadingFrameSemaphore = dispatch_semaphore_create(1);
#if !TARGET_OS_TV
// Set the side bar button action. When it's tapped, it'll show the sidebar.
[_limelightLogoButton addTarget:self.revealViewController action:@selector(revealToggle:) forControlEvents:UIControlEventTouchDown];
@@ -888,7 +825,7 @@ static NSMutableSet* hostList;
// loading frame which will cause an infinite loop by starting
// another loading frame. To avoid this, just don't refresh
// if we're coming back from a loading frame view.
[self beginForegroundRefresh: ![[self activeViewController] isKindOfClass:[LoadingFrameViewController class]]];
[self beginForegroundRefresh: !([_loadingFrame isShown] || [_loadingFrame isBeingDismissed])];
}
- (void)viewDidDisappear:(BOOL)animated