SDL_uikitmessagebox.m
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/*
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;
}
/* 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];
}
}
}
*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: */
SDL_MessageBoxData::message
const char * message
Definition: SDL_messagebox.h:97
SDL_TRUE
Definition: SDL_stdinc.h:142
SDL_MessageBoxData::title
const char * title
Definition: SDL_messagebox.h:96
SDL_MessageBoxData::window
SDL_Window * window
Definition: SDL_messagebox.h:95
available
static int available()
Definition: video.c:356
SDL_FALSE
Definition: SDL_stdinc.h:141
SDL_uikitwindow.h
data
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
SDL_WindowData
Definition: SDL_androidwindow.h:35
SDL_MessageBoxButtonData
Individual button data.
Definition: SDL_messagebox.h:56
SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT
Definition: SDL_messagebox.h:50
SDL_MessageBoxButtonData::buttonid
int buttonid
Definition: SDL_messagebox.h:59
SDL_MessageBoxData::numbuttons
int numbuttons
Definition: SDL_messagebox.h:99
SDL_GetFocusWindow
SDL_Window * SDL_GetFocusWindow(void)
Definition: SDL_video.c:2594
SDL_MessageBoxData::buttons
const SDL_MessageBoxButtonData * buttons
Definition: SDL_messagebox.h:100
SDL_MessageBoxData
MessageBox structure containing title, text, window, etc.
Definition: SDL_messagebox.h:92
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
NULL
#define NULL
Definition: begin_code.h:164
SDL_bool
SDL_bool
Definition: SDL_stdinc.h:139
SDL_SetError
#define SDL_SetError
Definition: SDL_dynapi_overrides.h:30
flags
GLbitfield flags
Definition: SDL_opengl_glext.h:1480
window
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
void
SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char const char SDL_SCANF_FORMAT_STRING const char return SDL_ThreadFunction const char void return Uint32 return Uint32 void
Definition: SDL_dynapi_procs.h:89
SDL_Window
The type used to identify a window.
Definition: SDL_sysvideo.h:73
SDL_Window::driverdata
void * driverdata
Definition: SDL_sysvideo.h:111
SDL.h
SDL_uikitvideo.h