/*

   Simple DirectMedia Layer

   Copyright (C) 1997-2012 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_config.h"

 #if SDL_VIDEO_DRIVER_COCOA

 #include "SDL_cocoavideo.h"

 #include "../../events/SDL_clipboardevents_c.h"

 static NSString *

 GetTextFormat(_THIS)

 {

 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060

     SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;

     if (data->osversion >= 0x1060) {

         return NSPasteboardTypeString;

     } else {

         return NSStringPboardType;

     }

 #else

     return NSStringPboardType;

 #endif

 }

 int

 Cocoa_SetClipboardText(_THIS, const char *text)

 {

     SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;

     NSPasteboard *pasteboard;

     NSString *format = GetTextFormat(_this);

     @autoreleasepool {

         pasteboard = [NSPasteboard generalPasteboard];

         data->clipboard_count = [pasteboard declareTypes:[NSArray arrayWithObject:format] owner:nil];

         [pasteboard setString:[NSString stringWithUTF8String:text] forType:format];

     }

     return 0;

 }

 char *

 Cocoa_GetClipboardText(_THIS)

 {

     NSPasteboard *pasteboard;

     NSString *format = GetTextFormat(_this);

     NSString *available;

     char *text;

     @autoreleasepool {

         pasteboard = [NSPasteboard generalPasteboard];

         available = [pasteboard availableTypeFromArray: [NSArray arrayWithObject:format]];

         if ([available isEqualToString:format]) {

             NSString* string;

             const char *utf8;

             string = [pasteboard stringForType:format];

             if (string == nil) {

                 utf8 = "";

             } else {

                 utf8 = [string UTF8String];

             }

             text = SDL_strdup(utf8);

         } else {

             text = SDL_strdup("");

         }

     }

     return text;

 }

 SDL_bool

 Cocoa_HasClipboardText(_THIS)

 {

     SDL_bool result = SDL_FALSE;

     char *text = Cocoa_GetClipboardText(_this);

     if (text) {

 	result = (SDL_strlen(text)>0) ? SDL_TRUE : SDL_FALSE;

 	SDL_free(text);

     }

     return result;

 }

 void

 Cocoa_CheckClipboardUpdate(struct SDL_VideoData * data)

 {

     NSPasteboard *pasteboard;

     NSInteger count;

     @autoreleasepool {

         pasteboard = [NSPasteboard generalPasteboard];

         count = [pasteboard changeCount];

         if (count != data->clipboard_count) {

             if (data->clipboard_count) {

                 SDL_SendClipboardUpdate();

             }

             data->clipboard_count = count;

         }

     }

 }

 #endif /* SDL_VIDEO_DRIVER_COCOA */

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