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Added support for press/release hardware keyboard events in iOS 13.4

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This commit is contained in:
Sam Lantinga 2020-04-08 19:16:31 -07:00
parent e9c94ac0b3
commit d4f1b520c9
5 changed files with 161 additions and 92 deletions
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4
src/events/SDL_events.c
View File

@ -678,10 +678,14 @@ SDL_PumpEvents(void)
{
SDL_VideoDevice *_this = SDL_GetVideoDevice();
/* Release any keys held down from last frame */
SDL_ReleaseAutoReleaseKeys();
/* Get events from the video subsystem */
if (_this) {
_this->PumpEvents(_this);
}
#if !SDL_JOYSTICK_DISABLED
/* Check for joystick state change */
if ((!SDL_disabled_events[SDL_JOYAXISMOTION >> 8] || SDL_JoystickEventState(SDL_QUERY))) {

78
src/events/SDL_keyboard.c
View File

@ -33,6 +33,9 @@
/* Global keyboard information */
#define KEYBOARD_HARDWARE 0x01
#define KEYBOARD_AUTORELEASE 0x02
typedef struct SDL_Keyboard SDL_Keyboard;
struct SDL_Keyboard
@ -40,8 +43,10 @@ struct SDL_Keyboard
/* Data common to all keyboards */
SDL_Window *focus;
Uint16 modstate;
Uint8 keysource[SDL_NUM_SCANCODES];
Uint8 keystate[SDL_NUM_SCANCODES];
SDL_Keycode keymap[SDL_NUM_SCANCODES];
SDL_bool autorelease_pending;
};
static SDL_Keyboard SDL_keyboard;
@ -675,19 +680,20 @@ SDL_SetKeyboardFocus(SDL_Window * window)
}
}
int
SDL_SendKeyboardKey(Uint8 state, SDL_Scancode scancode)
static int
SDL_SendKeyboardKeyInternal(Uint8 source, Uint8 state, SDL_Scancode scancode)
{
SDL_Keyboard *keyboard = &SDL_keyboard;
int posted;
SDL_Keymod modifier;
SDL_Keycode keycode;
Uint32 type;
Uint8 repeat;
Uint8 repeat = SDL_FALSE;
if (!scancode) {
if (scancode == SDL_SCANCODE_UNKNOWN) {
return 0;
}
#ifdef DEBUG_KEYBOARD
printf("The '%s' key has been %s\n", SDL_GetScancodeName(scancode),
state == SDL_PRESSED ? "pressed" : "released");
@ -707,19 +713,31 @@ SDL_SendKeyboardKey(Uint8 state, SDL_Scancode scancode)
}
/* Drop events that don't change state */
repeat = (state && keyboard->keystate[scancode]);
if (keyboard->keystate[scancode] == state && !repeat) {
#if 0
printf("Keyboard event didn't change state - dropped!\n");
#endif
if (state) {
if (keyboard->keystate[scancode]) {
if (!(keyboard->keysource[scancode] & source)) {
keyboard->keysource[scancode] |= source;
return 0;
}
repeat = SDL_TRUE;
}
keyboard->keysource[scancode] |= source;
} else {
if (!keyboard->keystate[scancode]) {
return 0;
}
keyboard->keysource[scancode] = 0;
}
/* Update internal keyboard state */
keyboard->keystate[scancode] = state;
keycode = keyboard->keymap[scancode];
if (source == KEYBOARD_AUTORELEASE) {
keyboard->autorelease_pending = SDL_TRUE;
}
/* Update modifiers state if applicable */
switch (keycode) {
case SDLK_LCTRL:
@ -785,6 +803,48 @@ SDL_SendKeyboardKey(Uint8 state, SDL_Scancode scancode)
return (posted);
}
int
SDL_SendKeyboardKey(Uint8 state, SDL_Scancode scancode)
{
return SDL_SendKeyboardKeyInternal(KEYBOARD_HARDWARE, state, scancode);
}
int
SDL_SendKeyboardKeyAutoRelease(SDL_Scancode scancode)
{
return SDL_SendKeyboardKeyInternal(KEYBOARD_AUTORELEASE, SDL_PRESSED, scancode);
}
void
SDL_ReleaseAutoReleaseKeys(void)
{
SDL_Keyboard *keyboard = &SDL_keyboard;
SDL_Scancode scancode;
if (keyboard->autorelease_pending) {
for (scancode = SDL_SCANCODE_UNKNOWN; scancode < SDL_NUM_SCANCODES; ++scancode) {
if (keyboard->keysource[scancode] == KEYBOARD_AUTORELEASE) {
SDL_SendKeyboardKeyInternal(KEYBOARD_AUTORELEASE, SDL_RELEASED, scancode);
}
}
keyboard->autorelease_pending = SDL_FALSE;
}
}
SDL_bool
SDL_HardwareKeyboardKeyPressed(void)
{
SDL_Keyboard *keyboard = &SDL_keyboard;
SDL_Scancode scancode;
for (scancode = SDL_SCANCODE_UNKNOWN; scancode < SDL_NUM_SCANCODES; ++scancode) {
if ((keyboard->keysource[scancode] & KEYBOARD_HARDWARE) != 0) {
return SDL_TRUE;
}
}
return SDL_FALSE;
}
int
SDL_SendKeyboardText(const char *text)
{

7
src/events/SDL_keyboard_c.h
View File

@ -49,6 +49,13 @@ extern void SDL_SetKeyboardFocus(SDL_Window * window);
/* Send a keyboard key event */
extern int SDL_SendKeyboardKey(Uint8 state, SDL_Scancode scancode);
extern int SDL_SendKeyboardKeyAutoRelease(SDL_Scancode scancode);
/* Release all the autorelease keys */
extern void SDL_ReleaseAutoReleaseKeys(void);
/* Return true if any hardware key is pressed */
extern SDL_bool SDL_HardwareKeyboardKeyPressed(void);
/* Send keyboard text input */
extern int SDL_SendKeyboardText(const char *text);

39
src/video/uikit/SDL_uikitview.m
View File

@ -245,9 +245,15 @@ extern int SDL_AppleTVRemoteOpenedAsJoystick;
}
#if TARGET_OS_TV || defined(__IPHONE_9_1)
- (SDL_Scancode)scancodeFromPressType:(UIPressType)presstype
- (SDL_Scancode)scancodeFromPress:(UIPress*)press
{
switch (presstype) {
if (press.key != nil) {
return (SDL_Scancode)press.key.keyCode;
}
/* Presses from Apple TV remote */
if (!SDL_AppleTVRemoteOpenedAsJoystick) {
switch (press.type) {
case UIPressTypeUpArrow:
return SDL_SCANCODE_UP;
case UIPressTypeDownArrow:
@ -266,40 +272,37 @@ extern int SDL_AppleTVRemoteOpenedAsJoystick;
/* HIG says: "secondary button behavior" */
return SDL_SCANCODE_PAUSE;
default:
return SDL_SCANCODE_UNKNOWN;
break;
}
}
return SDL_SCANCODE_UNKNOWN;
}
- (void)pressesBegan:(NSSet<UIPress *> *)presses withEvent:(UIPressesEvent *)event
{
if (!SDL_AppleTVRemoteOpenedAsJoystick) {
for (UIPress *press in presses) {
SDL_Scancode scancode = [self scancodeFromPressType:press.type];
SDL_Scancode scancode = [self scancodeFromPress:press];
SDL_SendKeyboardKey(SDL_PRESSED, scancode);
}
}
[super pressesBegan:presses withEvent:event];
}
- (void)pressesEnded:(NSSet<UIPress *> *)presses withEvent:(UIPressesEvent *)event
{
if (!SDL_AppleTVRemoteOpenedAsJoystick) {
for (UIPress *press in presses) {
SDL_Scancode scancode = [self scancodeFromPressType:press.type];
SDL_Scancode scancode = [self scancodeFromPress:press];
SDL_SendKeyboardKey(SDL_RELEASED, scancode);
}
}
[super pressesEnded:presses withEvent:event];
}
- (void)pressesCancelled:(NSSet<UIPress *> *)presses withEvent:(UIPressesEvent *)event
{
if (!SDL_AppleTVRemoteOpenedAsJoystick) {
for (UIPress *press in presses) {
SDL_Scancode scancode = [self scancodeFromPressType:press.type];
SDL_Scancode scancode = [self scancodeFromPress:press];
SDL_SendKeyboardKey(SDL_RELEASED, scancode);
}
}
[super pressesCancelled:presses withEvent:event];
}
@ -320,20 +323,16 @@ extern int SDL_AppleTVRemoteOpenedAsJoystick;
* which better maps to swipe gestures. */
switch (gesture.direction) {
case UISwipeGestureRecognizerDirectionUp:
SDL_SendKeyboardKey(SDL_PRESSED, SDL_SCANCODE_UP);
SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_UP);
SDL_SendKeyboardKeyAutoRelease(SDL_SCANCODE_UP);
break;
case UISwipeGestureRecognizerDirectionDown:
SDL_SendKeyboardKey(SDL_PRESSED, SDL_SCANCODE_DOWN);
SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_DOWN);
SDL_SendKeyboardKeyAutoRelease(SDL_SCANCODE_DOWN);
break;
case UISwipeGestureRecognizerDirectionLeft:
SDL_SendKeyboardKey(SDL_PRESSED, SDL_SCANCODE_LEFT);
SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_LEFT);
SDL_SendKeyboardKeyAutoRelease(SDL_SCANCODE_LEFT);
break;
case UISwipeGestureRecognizerDirectionRight:
SDL_SendKeyboardKey(SDL_PRESSED, SDL_SCANCODE_RIGHT);
SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_RIGHT);
SDL_SendKeyboardKeyAutoRelease(SDL_SCANCODE_RIGHT);
break;
}
}

11
src/video/uikit/SDL_uikitviewcontroller.m
View File

@ -317,8 +317,7 @@ SDL_HideHomeIndicatorHintChanged(void *userdata, const char *name, const char *o
}
if (scancode != SDL_SCANCODE_UNKNOWN) {
SDL_SendKeyboardKey(SDL_PRESSED, scancode);
SDL_SendKeyboardKey(SDL_RELEASED, scancode);
SDL_SendKeyboardKeyAutoRelease(scancode);
}
}
@ -411,6 +410,7 @@ SDL_HideHomeIndicatorHintChanged(void *userdata, const char *name, const char *o
{
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;
@ -443,6 +443,7 @@ SDL_HideHomeIndicatorHintChanged(void *userdata, const char *name, const char *o
SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_LSHIFT);
}
}
}
SDL_SendKeyboardText([changeText UTF8String]);
}
changeText = nil;
@ -491,8 +492,7 @@ SDL_HideHomeIndicatorHintChanged(void *userdata, const char *name, const char *o
changeText = nil;
if (textField.markedTextRange == nil) {
/* it wants to replace text with nothing, ie a delete */
SDL_SendKeyboardKey(SDL_PRESSED, SDL_SCANCODE_BACKSPACE);
SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_BACKSPACE);
SDL_SendKeyboardKeyAutoRelease(SDL_SCANCODE_BACKSPACE);
}
if (textField.text.length < 16) {
textField.text = obligateForBackspace;
@ -506,8 +506,7 @@ SDL_HideHomeIndicatorHintChanged(void *userdata, const char *name, const char *o
/* Terminates the editing session */
- (BOOL)textFieldShouldReturn:(UITextField*)_textField
{
SDL_SendKeyboardKey(SDL_PRESSED, SDL_SCANCODE_RETURN);
SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_RETURN);
SDL_SendKeyboardKeyAutoRelease(SDL_SCANCODE_RETURN);
if (keyboardVisible &&
SDL_GetHintBoolean(SDL_HINT_RETURN_KEY_HIDES_IME, SDL_FALSE)) {
SDL_StopTextInput();