sdl2-sys 0.38.0

Raw SDL2 bindings for Rust, used internally rust-sdl2
Documentation 
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/*
  Simple DirectMedia Layer
  Copyright (C) 1997-2023 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_uikitvideo.h"
#include "../../events/SDL_clipboardevents_c.h"

#import <UIKit/UIPasteboard.h>

int
UIKit_SetClipboardText(_THIS, const char *text)
{
#if TARGET_OS_TV
    return SDL_SetError("The clipboard is not available on tvOS");
#else
    @autoreleasepool {
        [UIPasteboard generalPasteboard].string = @(text);
        return 0;
    }
#endif
}

char *
UIKit_GetClipboardText(_THIS)
{
#if TARGET_OS_TV
    return SDL_strdup(""); // Unsupported.
#else
    @autoreleasepool {
        UIPasteboard *pasteboard = [UIPasteboard generalPasteboard];
        NSString *string = pasteboard.string;

        if (string != nil) {
            return SDL_strdup(string.UTF8String);
        } else {
            return SDL_strdup("");
        }
    }
#endif
}

SDL_bool
UIKit_HasClipboardText(_THIS)
{
    @autoreleasepool {
#if !TARGET_OS_TV
        if ([UIPasteboard generalPasteboard].string != nil) {
            return SDL_TRUE;
        }
#endif
        return SDL_FALSE;
    }
}

void
UIKit_InitClipboard(_THIS)
{
#if !TARGET_OS_TV
    @autoreleasepool {
        SDL_VideoData *data = (__bridge SDL_VideoData *) _this->driverdata;
        NSNotificationCenter *center = [NSNotificationCenter defaultCenter];

        id observer = [center addObserverForName:UIPasteboardChangedNotification
                                         object:nil
                                          queue:nil
                                     usingBlock:^(NSNotification *note) {
                                         SDL_SendClipboardUpdate();
                                     }];

        data.pasteboardObserver = observer;
    }
#endif
}

void
UIKit_QuitClipboard(_THIS)
{
    @autoreleasepool {
        SDL_VideoData *data = (__bridge SDL_VideoData *) _this->driverdata;

        if (data.pasteboardObserver != nil) {
            [[NSNotificationCenter defaultCenter] removeObserver:data.pasteboardObserver];
        }

        data.pasteboardObserver = nil;
    }
}

#endif /* SDL_VIDEO_DRIVER_UIKIT */

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