| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2021 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_video.h" |
| #include "SDL_hints.h" |
| #include "../SDL_sysvideo.h" |
| #include "../../events/SDL_events_c.h" |
| |
| #import "SDL_uikitviewcontroller.h" |
| #import "SDL_uikitmessagebox.h" |
| #include "SDL_uikitvideo.h" |
| #include "SDL_uikitmodes.h" |
| #include "SDL_uikitwindow.h" |
| #include "SDL_uikitopengles.h" |
| |
| #if SDL_IPHONE_KEYBOARD |
| #include "keyinfotable.h" |
| #endif |
| |
| #if TARGET_OS_TV |
| static void SDLCALL |
| SDL_AppleTVControllerUIHintChanged(void *userdata, const char *name, const char *oldValue, const char *hint) |
| { |
| @autoreleasepool { |
| SDL_uikitviewcontroller *viewcontroller = (__bridge SDL_uikitviewcontroller *) userdata; |
| viewcontroller.controllerUserInteractionEnabled = hint && (*hint != '0'); |
| } |
| } |
| #endif |
| |
| #if !TARGET_OS_TV |
| static void SDLCALL |
| SDL_HideHomeIndicatorHintChanged(void *userdata, const char *name, const char *oldValue, const char *hint) |
| { |
| @autoreleasepool { |
| SDL_uikitviewcontroller *viewcontroller = (__bridge SDL_uikitviewcontroller *) userdata; |
| viewcontroller.homeIndicatorHidden = (hint && *hint) ? SDL_atoi(hint) : -1; |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wunguarded-availability-new" |
| if ([viewcontroller respondsToSelector:@selector(setNeedsUpdateOfHomeIndicatorAutoHidden)]) { |
| [viewcontroller setNeedsUpdateOfHomeIndicatorAutoHidden]; |
| [viewcontroller setNeedsUpdateOfScreenEdgesDeferringSystemGestures]; |
| } |
| #pragma clang diagnostic pop |
| } |
| } |
| #endif |
| |
| @implementation SDL_uikitviewcontroller { |
| CADisplayLink *displayLink; |
| int animationInterval; |
| void (*animationCallback)(void*); |
| void *animationCallbackParam; |
| |
| #if SDL_IPHONE_KEYBOARD |
| UITextField *textField; |
| BOOL hardwareKeyboard; |
| BOOL showingKeyboard; |
| BOOL rotatingOrientation; |
| NSString *changeText; |
| NSString *obligateForBackspace; |
| #endif |
| } |
| |
| @synthesize window; |
| |
| - (instancetype)initWithSDLWindow:(SDL_Window *)_window |
| { |
| if (self = [super initWithNibName:nil bundle:nil]) { |
| self.window = _window; |
| |
| #if SDL_IPHONE_KEYBOARD |
| [self initKeyboard]; |
| hardwareKeyboard = NO; |
| showingKeyboard = NO; |
| rotatingOrientation = NO; |
| #endif |
| |
| #if TARGET_OS_TV |
| SDL_AddHintCallback(SDL_HINT_APPLE_TV_CONTROLLER_UI_EVENTS, |
| SDL_AppleTVControllerUIHintChanged, |
| (__bridge void *) self); |
| #endif |
| |
| #if !TARGET_OS_TV |
| SDL_AddHintCallback(SDL_HINT_IOS_HIDE_HOME_INDICATOR, |
| SDL_HideHomeIndicatorHintChanged, |
| (__bridge void *) self); |
| #endif |
| } |
| return self; |
| } |
| |
| - (void)dealloc |
| { |
| #if SDL_IPHONE_KEYBOARD |
| [self deinitKeyboard]; |
| #endif |
| |
| #if TARGET_OS_TV |
| SDL_DelHintCallback(SDL_HINT_APPLE_TV_CONTROLLER_UI_EVENTS, |
| SDL_AppleTVControllerUIHintChanged, |
| (__bridge void *) self); |
| #endif |
| |
| #if !TARGET_OS_TV |
| SDL_DelHintCallback(SDL_HINT_IOS_HIDE_HOME_INDICATOR, |
| SDL_HideHomeIndicatorHintChanged, |
| (__bridge void *) self); |
| #endif |
| } |
| |
| - (void)setAnimationCallback:(int)interval |
| callback:(void (*)(void*))callback |
| callbackParam:(void*)callbackParam |
| { |
| [self stopAnimation]; |
| |
| animationInterval = interval; |
| animationCallback = callback; |
| animationCallbackParam = callbackParam; |
| |
| if (animationCallback) { |
| [self startAnimation]; |
| } |
| } |
| |
| - (void)startAnimation |
| { |
| displayLink = [CADisplayLink displayLinkWithTarget:self selector:@selector(doLoop:)]; |
| |
| #ifdef __IPHONE_10_3 |
| SDL_WindowData *data = (__bridge SDL_WindowData *) window->driverdata; |
| |
| if ([displayLink respondsToSelector:@selector(preferredFramesPerSecond)] |
| && data != nil && data.uiwindow != nil |
| && [data.uiwindow.screen respondsToSelector:@selector(maximumFramesPerSecond)]) { |
| displayLink.preferredFramesPerSecond = data.uiwindow.screen.maximumFramesPerSecond / animationInterval; |
| } else |
| #endif |
| { |
| #if __IPHONE_OS_VERSION_MIN_REQUIRED < 100300 |
| [displayLink setFrameInterval:animationInterval]; |
| #endif |
| } |
| |
| [displayLink addToRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; |
| } |
| |
| - (void)stopAnimation |
| { |
| [displayLink invalidate]; |
| displayLink = nil; |
| } |
| |
| - (void)doLoop:(CADisplayLink*)sender |
| { |
| /* Don't run the game loop while a messagebox is up */ |
| if (!UIKit_ShowingMessageBox()) { |
| /* See the comment in the function definition. */ |
| #if SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2 |
| UIKit_GL_RestoreCurrentContext(); |
| #endif |
| |
| animationCallback(animationCallbackParam); |
| } |
| } |
| |
| - (void)loadView |
| { |
| /* Do nothing. */ |
| } |
| |
| - (void)viewDidLayoutSubviews |
| { |
| const CGSize size = self.view.bounds.size; |
| int w = (int) size.width; |
| int h = (int) size.height; |
| |
| SDL_SendWindowEvent(window, SDL_WINDOWEVENT_RESIZED, w, h); |
| } |
| |
| #if !TARGET_OS_TV |
| - (NSUInteger)supportedInterfaceOrientations |
| { |
| return UIKit_GetSupportedOrientations(window); |
| } |
| |
| #if __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_7_0 |
| - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)orient |
| { |
| return ([self supportedInterfaceOrientations] & (1 << orient)) != 0; |
| } |
| #endif |
| |
| - (BOOL)prefersStatusBarHidden |
| { |
| BOOL hidden = (window->flags & (SDL_WINDOW_FULLSCREEN|SDL_WINDOW_BORDERLESS)) != 0; |
| return hidden; |
| } |
| |
| - (BOOL)prefersHomeIndicatorAutoHidden |
| { |
| BOOL hidden = NO; |
| if (self.homeIndicatorHidden == 1) { |
| hidden = YES; |
| } |
| return hidden; |
| } |
| |
| - (UIRectEdge)preferredScreenEdgesDeferringSystemGestures |
| { |
| if (self.homeIndicatorHidden >= 0) { |
| if (self.homeIndicatorHidden == 2) { |
| return UIRectEdgeAll; |
| } else { |
| return UIRectEdgeNone; |
| } |
| } |
| |
| /* By default, fullscreen and borderless windows get all screen gestures */ |
| if ((window->flags & (SDL_WINDOW_FULLSCREEN|SDL_WINDOW_BORDERLESS)) != 0) { |
| return UIRectEdgeAll; |
| } else { |
| return UIRectEdgeNone; |
| } |
| } |
| #endif |
| |
| /* |
| ---- Keyboard related functionality below this line ---- |
| */ |
| #if SDL_IPHONE_KEYBOARD |
| |
| @synthesize textInputRect; |
| @synthesize keyboardHeight; |
| @synthesize keyboardVisible; |
| |
| /* Set ourselves up as a UITextFieldDelegate */ |
| - (void)initKeyboard |
| { |
| changeText = nil; |
| obligateForBackspace = @" "; /* 64 space */ |
| textField = [[UITextField alloc] initWithFrame:CGRectZero]; |
| textField.delegate = self; |
| /* placeholder so there is something to delete! */ |
| textField.text = obligateForBackspace; |
| |
| /* set UITextInputTrait properties, mostly to defaults */ |
| textField.autocapitalizationType = UITextAutocapitalizationTypeNone; |
| textField.autocorrectionType = UITextAutocorrectionTypeNo; |
| textField.enablesReturnKeyAutomatically = NO; |
| textField.keyboardAppearance = UIKeyboardAppearanceDefault; |
| textField.keyboardType = UIKeyboardTypeDefault; |
| textField.returnKeyType = UIReturnKeyDefault; |
| textField.secureTextEntry = NO; |
| |
| textField.hidden = YES; |
| keyboardVisible = NO; |
| |
| NSNotificationCenter *center = [NSNotificationCenter defaultCenter]; |
| #if !TARGET_OS_TV |
| [center addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil]; |
| [center addObserver:self selector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil]; |
| #endif |
| [center addObserver:self selector:@selector(textFieldTextDidChange:) name:UITextFieldTextDidChangeNotification object:nil]; |
| } |
| |
| - (NSArray *)keyCommands |
| { |
| NSMutableArray *commands = [[NSMutableArray alloc] init]; |
| [commands addObject:[UIKeyCommand keyCommandWithInput:UIKeyInputUpArrow modifierFlags:kNilOptions action:@selector(handleCommand:)]]; |
| [commands addObject:[UIKeyCommand keyCommandWithInput:UIKeyInputDownArrow modifierFlags:kNilOptions action:@selector(handleCommand:)]]; |
| [commands addObject:[UIKeyCommand keyCommandWithInput:UIKeyInputLeftArrow modifierFlags:kNilOptions action:@selector(handleCommand:)]]; |
| [commands addObject:[UIKeyCommand keyCommandWithInput:UIKeyInputRightArrow modifierFlags:kNilOptions action:@selector(handleCommand:)]]; |
| [commands addObject:[UIKeyCommand keyCommandWithInput:UIKeyInputEscape modifierFlags:kNilOptions action:@selector(handleCommand:)]]; |
| return [NSArray arrayWithArray:commands]; |
| } |
| |
| - (void)handleCommand:(UIKeyCommand *)keyCommand |
| { |
| SDL_Scancode scancode = SDL_SCANCODE_UNKNOWN; |
| NSString *input = keyCommand.input; |
| |
| if (input == UIKeyInputUpArrow) { |
| scancode = SDL_SCANCODE_UP; |
| } else if (input == UIKeyInputDownArrow) { |
| scancode = SDL_SCANCODE_DOWN; |
| } else if (input == UIKeyInputLeftArrow) { |
| scancode = SDL_SCANCODE_LEFT; |
| } else if (input == UIKeyInputRightArrow) { |
| scancode = SDL_SCANCODE_RIGHT; |
| } else if (input == UIKeyInputEscape) { |
| scancode = SDL_SCANCODE_ESCAPE; |
| } |
| |
| if (scancode != SDL_SCANCODE_UNKNOWN) { |
| SDL_SendKeyboardKeyAutoRelease(scancode); |
| } |
| } |
| |
| - (void)setView:(UIView *)view |
| { |
| [super setView:view]; |
| |
| [view addSubview:textField]; |
| |
| if (keyboardVisible) { |
| [self showKeyboard]; |
| } |
| } |
| |
| /* willRotateToInterfaceOrientation and didRotateFromInterfaceOrientation are deprecated in iOS 8+ in favor of viewWillTransitionToSize */ |
| #if TARGET_OS_TV || __IPHONE_OS_VERSION_MIN_REQUIRED >= 80000 |
| - (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator |
| { |
| [super viewWillTransitionToSize:size withTransitionCoordinator:coordinator]; |
| rotatingOrientation = YES; |
| [coordinator animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> context) {} |
| completion:^(id<UIViewControllerTransitionCoordinatorContext> context) { |
| self->rotatingOrientation = NO; |
| }]; |
| } |
| #else |
| - (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration { |
| [super willRotateToInterfaceOrientation:toInterfaceOrientation duration:duration]; |
| rotatingOrientation = YES; |
| } |
| |
| - (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation { |
| [super didRotateFromInterfaceOrientation:fromInterfaceOrientation]; |
| rotatingOrientation = NO; |
| } |
| #endif /* TARGET_OS_TV || __IPHONE_OS_VERSION_MIN_REQUIRED >= 80000 */ |
| |
| - (void)deinitKeyboard |
| { |
| NSNotificationCenter *center = [NSNotificationCenter defaultCenter]; |
| #if !TARGET_OS_TV |
| [center removeObserver:self name:UIKeyboardWillShowNotification object:nil]; |
| [center removeObserver:self name:UIKeyboardWillHideNotification object:nil]; |
| #endif |
| [center removeObserver:self name:UITextFieldTextDidChangeNotification object:nil]; |
| } |
| |
| /* reveal onscreen virtual keyboard */ |
| - (void)showKeyboard |
| { |
| keyboardVisible = YES; |
| if (textField.window) { |
| showingKeyboard = YES; |
| [textField becomeFirstResponder]; |
| showingKeyboard = NO; |
| } |
| } |
| |
| /* hide onscreen virtual keyboard */ |
| - (void)hideKeyboard |
| { |
| keyboardVisible = NO; |
| [textField resignFirstResponder]; |
| } |
| |
| - (void)keyboardWillShow:(NSNotification *)notification |
| { |
| #if !TARGET_OS_TV |
| CGRect kbrect = [[notification userInfo][UIKeyboardFrameEndUserInfoKey] CGRectValue]; |
| |
| /* The keyboard rect is in the coordinate space of the screen/window, but we |
| * want its height in the coordinate space of the view. */ |
| kbrect = [self.view convertRect:kbrect fromView:nil]; |
| |
| [self setKeyboardHeight:(int)kbrect.size.height]; |
| #endif |
| } |
| |
| - (void)keyboardWillHide:(NSNotification *)notification |
| { |
| if (!showingKeyboard && !rotatingOrientation) { |
| SDL_StopTextInput(); |
| } |
| [self setKeyboardHeight:0]; |
| } |
| |
| - (void)textFieldTextDidChange:(NSNotification *)notification |
| { |
| if (changeText!=nil && textField.markedTextRange == nil) |
| { |
| NSUInteger len = changeText.length; |
| if (len > 0) { |
| if (!SDL_HardwareKeyboardKeyPressed()) { |
| /* Go through all the characters in the string we've been sent and |
| * convert them to key presses */ |
| int i; |
| for (i = 0; i < len; i++) { |
| unichar c = [changeText characterAtIndex:i]; |
| SDL_Scancode code; |
| Uint16 mod; |
| |
| if (c < 127) { |
| /* Figure out the SDL_Scancode and SDL_keymod for this unichar */ |
| code = unicharToUIKeyInfoTable[c].code; |
| mod = unicharToUIKeyInfoTable[c].mod; |
| } else { |
| /* We only deal with ASCII right now */ |
| code = SDL_SCANCODE_UNKNOWN; |
| mod = 0; |
| } |
| |
| if (mod & KMOD_SHIFT) { |
| /* If character uses shift, press shift */ |
| SDL_SendKeyboardKey(SDL_PRESSED, SDL_SCANCODE_LSHIFT); |
| } |
| |
| /* send a keydown and keyup even for the character */ |
| SDL_SendKeyboardKey(SDL_PRESSED, code); |
| SDL_SendKeyboardKey(SDL_RELEASED, code); |
| |
| if (mod & KMOD_SHIFT) { |
| /* If character uses shift, release shift */ |
| SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_LSHIFT); |
| } |
| } |
| } |
| SDL_SendKeyboardText([changeText UTF8String]); |
| } |
| changeText = nil; |
| } |
| } |
| |
| - (void)updateKeyboard |
| { |
| CGAffineTransform t = self.view.transform; |
| CGPoint offset = CGPointMake(0.0, 0.0); |
| CGRect frame = UIKit_ComputeViewFrame(window, self.view.window.screen); |
| |
| if (self.keyboardHeight) { |
| int rectbottom = self.textInputRect.y + self.textInputRect.h; |
| int keybottom = self.view.bounds.size.height - self.keyboardHeight; |
| if (keybottom < rectbottom) { |
| offset.y = keybottom - rectbottom; |
| } |
| } |
| |
| /* Apply this view's transform (except any translation) to the offset, in |
| * order to orient it correctly relative to the frame's coordinate space. */ |
| t.tx = 0.0; |
| t.ty = 0.0; |
| offset = CGPointApplyAffineTransform(offset, t); |
| |
| /* Apply the updated offset to the view's frame. */ |
| frame.origin.x += offset.x; |
| frame.origin.y += offset.y; |
| |
| self.view.frame = frame; |
| } |
| |
| - (void)setKeyboardHeight:(int)height |
| { |
| keyboardVisible = height > 0; |
| keyboardHeight = height; |
| [self updateKeyboard]; |
| } |
| |
| /* UITextFieldDelegate method. Invoked when user types something. */ |
| - (BOOL)textField:(UITextField *)_textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string |
| { |
| NSUInteger len = string.length; |
| if (len == 0) { |
| changeText = nil; |
| if (textField.markedTextRange == nil) { |
| /* it wants to replace text with nothing, ie a delete */ |
| SDL_SendKeyboardKeyAutoRelease(SDL_SCANCODE_BACKSPACE); |
| } |
| if (textField.text.length < 16) { |
| textField.text = obligateForBackspace; |
| } |
| } else { |
| changeText = string; |
| } |
| return YES; |
| } |
| |
| /* Terminates the editing session */ |
| - (BOOL)textFieldShouldReturn:(UITextField*)_textField |
| { |
| SDL_SendKeyboardKeyAutoRelease(SDL_SCANCODE_RETURN); |
| if (keyboardVisible && |
| SDL_GetHintBoolean(SDL_HINT_RETURN_KEY_HIDES_IME, SDL_FALSE)) { |
| SDL_StopTextInput(); |
| } |
| return YES; |
| } |
| |
| #endif |
| |
| @end |
| |
| /* iPhone keyboard addition functions */ |
| #if SDL_IPHONE_KEYBOARD |
| |
| static SDL_uikitviewcontroller * |
| GetWindowViewController(SDL_Window * window) |
| { |
| if (!window || !window->driverdata) { |
| SDL_SetError("Invalid window"); |
| return nil; |
| } |
| |
| SDL_WindowData *data = (__bridge SDL_WindowData *)window->driverdata; |
| |
| return data.viewcontroller; |
| } |
| |
| SDL_bool |
| UIKit_HasScreenKeyboardSupport(_THIS) |
| { |
| return SDL_TRUE; |
| } |
| |
| void |
| UIKit_ShowScreenKeyboard(_THIS, SDL_Window *window) |
| { |
| @autoreleasepool { |
| SDL_uikitviewcontroller *vc = GetWindowViewController(window); |
| [vc showKeyboard]; |
| } |
| } |
| |
| void |
| UIKit_HideScreenKeyboard(_THIS, SDL_Window *window) |
| { |
| @autoreleasepool { |
| SDL_uikitviewcontroller *vc = GetWindowViewController(window); |
| [vc hideKeyboard]; |
| } |
| } |
| |
| SDL_bool |
| UIKit_IsScreenKeyboardShown(_THIS, SDL_Window *window) |
| { |
| @autoreleasepool { |
| SDL_uikitviewcontroller *vc = GetWindowViewController(window); |
| if (vc != nil) { |
| return vc.keyboardVisible; |
| } |
| return SDL_FALSE; |
| } |
| } |
| |
| void |
| UIKit_SetTextInputRect(_THIS, SDL_Rect *rect) |
| { |
| if (!rect) { |
| SDL_InvalidParamError("rect"); |
| return; |
| } |
| |
| @autoreleasepool { |
| SDL_uikitviewcontroller *vc = GetWindowViewController(SDL_GetFocusWindow()); |
| if (vc != nil) { |
| vc.textInputRect = *rect; |
| |
| if (vc.keyboardVisible) { |
| [vc updateKeyboard]; |
| } |
| } |
| } |
| } |
| |
| |
| #endif /* SDL_IPHONE_KEYBOARD */ |
| |
| #endif /* SDL_VIDEO_DRIVER_UIKIT */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |