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Diffstat (limited to 'source/3rd-party/SDL2/src/video/uikit/SDL_uikitmessagebox.m')
| -rw-r--r-- | source/3rd-party/SDL2/src/video/uikit/SDL_uikitmessagebox.m | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/source/3rd-party/SDL2/src/video/uikit/SDL_uikitmessagebox.m b/source/3rd-party/SDL2/src/video/uikit/SDL_uikitmessagebox.m new file mode 100644 index 0000000..cf2a8f3 --- /dev/null +++ b/source/3rd-party/SDL2/src/video/uikit/SDL_uikitmessagebox.m @@ -0,0 +1,208 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org> + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. +*/ +#include "../../SDL_internal.h" + +#if SDL_VIDEO_DRIVER_UIKIT + +#include "SDL.h" +#include "SDL_uikitvideo.h" +#include "SDL_uikitwindow.h" + +/* Display a UIKit message box */ + +static SDL_bool s_showingMessageBox = SDL_FALSE; + +SDL_bool +UIKit_ShowingMessageBox(void) +{ + return s_showingMessageBox; +} + +static void +UIKit_WaitUntilMessageBoxClosed(const SDL_MessageBoxData *messageboxdata, int *clickedindex) +{ + *clickedindex = messageboxdata->numbuttons; + + @autoreleasepool { + /* Run the main event loop until the alert has finished */ + /* Note that this needs to be done on the main thread */ + s_showingMessageBox = SDL_TRUE; + while ((*clickedindex) == messageboxdata->numbuttons) { + [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate distantFuture]]; + } + s_showingMessageBox = SDL_FALSE; + } +} + +static BOOL +UIKit_ShowMessageBoxAlertController(const SDL_MessageBoxData *messageboxdata, int *buttonid) +{ +#ifdef __IPHONE_8_0 + int i; + int __block clickedindex = messageboxdata->numbuttons; + const SDL_MessageBoxButtonData *buttons = messageboxdata->buttons; + UIWindow *window = nil; + UIWindow *alertwindow = nil; + + if (![UIAlertController class]) { + return NO; + } + + UIAlertController *alert; + alert = [UIAlertController alertControllerWithTitle:@(messageboxdata->title) + message:@(messageboxdata->message) + preferredStyle:UIAlertControllerStyleAlert]; + + for (i = 0; i < messageboxdata->numbuttons; i++) { + UIAlertAction *action; + UIAlertActionStyle style = UIAlertActionStyleDefault; + + if (buttons[i].flags & SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT) { + style = UIAlertActionStyleCancel; + } + + action = [UIAlertAction actionWithTitle:@(buttons[i].text) + style:style + handler:^(UIAlertAction *action) { + clickedindex = i; + }]; + [alert addAction:action]; + } + + if (messageboxdata->window) { + SDL_WindowData *data = (__bridge SDL_WindowData *) messageboxdata->window->driverdata; + window = data.uiwindow; + } + + if (window == nil || window.rootViewController == nil) { + alertwindow = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds]; + alertwindow.rootViewController = [UIViewController new]; + alertwindow.windowLevel = UIWindowLevelAlert; + + window = alertwindow; + + [alertwindow makeKeyAndVisible]; + } + + [window.rootViewController presentViewController:alert animated:YES completion:nil]; + UIKit_WaitUntilMessageBoxClosed(messageboxdata, &clickedindex); + + if (alertwindow) { + alertwindow.hidden = YES; + } + +#if !TARGET_OS_TV + /* Force the main SDL window to re-evaluate home indicator state */ + SDL_Window *focus = SDL_GetFocusWindow(); + if (focus) { + SDL_WindowData *data = (__bridge SDL_WindowData *) focus->driverdata; + if (data != nil) { + if (@available(iOS 11.0, *)) { + [data.viewcontroller performSelectorOnMainThread:@selector(setNeedsUpdateOfHomeIndicatorAutoHidden) withObject:nil waitUntilDone:NO]; + [data.viewcontroller performSelectorOnMainThread:@selector(setNeedsUpdateOfScreenEdgesDeferringSystemGestures) withObject:nil waitUntilDone:NO]; + } + } + } +#endif /* !TARGET_OS_TV */ + + *buttonid = messageboxdata->buttons[clickedindex].buttonid; + return YES; +#else + return NO; +#endif /* __IPHONE_8_0 */ +} + +/* UIAlertView is deprecated in iOS 8+ in favor of UIAlertController. */ +#if __IPHONE_OS_VERSION_MIN_REQUIRED < 80000 +@interface SDLAlertViewDelegate : NSObject <UIAlertViewDelegate> + +@property (nonatomic, assign) int *clickedIndex; + +@end + +@implementation SDLAlertViewDelegate + +- (void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex +{ + if (_clickedIndex != NULL) { + *_clickedIndex = (int) buttonIndex; + } +} + +@end +#endif /* __IPHONE_OS_VERSION_MIN_REQUIRED < 80000 */ + +static BOOL +UIKit_ShowMessageBoxAlertView(const SDL_MessageBoxData *messageboxdata, int *buttonid) +{ + /* UIAlertView is deprecated in iOS 8+ in favor of UIAlertController. */ +#if __IPHONE_OS_VERSION_MIN_REQUIRED < 80000 + int i; + int clickedindex = messageboxdata->numbuttons; + const SDL_MessageBoxButtonData *buttons = messageboxdata->buttons; + UIAlertView *alert = [[UIAlertView alloc] init]; + SDLAlertViewDelegate *delegate = [[SDLAlertViewDelegate alloc] init]; + + alert.delegate = delegate; + alert.title = @(messageboxdata->title); + alert.message = @(messageboxdata->message); + + for (i = 0; i < messageboxdata->numbuttons; i++) { + [alert addButtonWithTitle:@(buttons[i].text)]; + } + + delegate.clickedIndex = &clickedindex; + + [alert show]; + + UIKit_WaitUntilMessageBoxClosed(messageboxdata, &clickedindex); + + alert.delegate = nil; + + *buttonid = messageboxdata->buttons[clickedindex].buttonid; + return YES; +#else + return NO; +#endif /* __IPHONE_OS_VERSION_MIN_REQUIRED < 80000 */ +} + +int +UIKit_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid) +{ + BOOL success = NO; + + @autoreleasepool { + success = UIKit_ShowMessageBoxAlertController(messageboxdata, buttonid); + if (!success) { + success = UIKit_ShowMessageBoxAlertView(messageboxdata, buttonid); + } + } + + if (!success) { + return SDL_SetError("Could not show message box."); + } + + return 0; +} + +#endif /* SDL_VIDEO_DRIVER_UIKIT */ + +/* vi: set ts=4 sw=4 expandtab: */ |