1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
|
/*
Simple DirectMedia Layer
Copyright (C) 1997-2025 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"
#ifdef SDL_VIDEO_DRIVER_COCOA
#include "SDL_cocoavideo.h"
#include "../../events/SDL_events_c.h"
#include "../../events/SDL_clipboardevents_c.h"
#include <UniformTypeIdentifiers/UniformTypeIdentifiers.h>
@interface Cocoa_PasteboardDataProvider : NSObject<NSPasteboardItemDataProvider>
{
SDL_ClipboardDataCallback m_callback;
void *m_userdata;
}
@end
@implementation Cocoa_PasteboardDataProvider
- (nullable instancetype)initWith:(SDL_ClipboardDataCallback)callback
userData:(void *)userdata
{
self = [super init];
if (!self) {
return self;
}
m_callback = callback;
m_userdata = userdata;
return self;
}
- (void)pasteboard:(NSPasteboard *)pasteboard
item:(NSPasteboardItem *)item
provideDataForType:(NSPasteboardType)type
{
@autoreleasepool {
size_t size = 0;
CFStringRef mimeType;
const void *callbackData;
NSData *data;
mimeType = UTTypeCopyPreferredTagWithClass((__bridge CFStringRef)type, kUTTagClassMIMEType);
callbackData = m_callback(m_userdata, [(__bridge NSString *)mimeType UTF8String], &size);
CFRelease(mimeType);
if (callbackData == NULL || size == 0) {
return;
}
data = [NSData dataWithBytes: callbackData length: size];
[item setData: data forType: type];
}
}
@end
static char **GetMimeTypes(int *pnformats)
{
char **new_mime_types = NULL;
*pnformats = 0;
int nformats = 0;
int formatsSz = 0;
NSArray<NSPasteboardItem *> *items = [[NSPasteboard generalPasteboard] pasteboardItems];
NSUInteger nitems = [items count];
if (nitems > 0) {
for (NSPasteboardItem *item in items) {
NSArray<NSString *> *types = [item types];
for (NSString *type in types) {
if (@available(macOS 11.0, *)) {
UTType *uttype = [UTType typeWithIdentifier:type];
NSString *mime_type = [uttype preferredMIMEType];
if (mime_type) {
NSUInteger len = [mime_type lengthOfBytesUsingEncoding:NSUTF8StringEncoding] + 1;
formatsSz += len;
++nformats;
}
}
NSUInteger len = [type lengthOfBytesUsingEncoding:NSUTF8StringEncoding] + 1;
formatsSz += len;
++nformats;
}
}
new_mime_types = SDL_AllocateTemporaryMemory((nformats + 1) * sizeof(char *) + formatsSz);
if (new_mime_types) {
int i = 0;
char *strPtr = (char *)(new_mime_types + nformats + 1);
for (NSPasteboardItem *item in items) {
NSArray<NSString *> *types = [item types];
for (NSString *type in types) {
if (@available(macOS 11.0, *)) {
UTType *uttype = [UTType typeWithIdentifier:type];
NSString *mime_type = [uttype preferredMIMEType];
if (mime_type) {
NSUInteger len = [mime_type lengthOfBytesUsingEncoding:NSUTF8StringEncoding] + 1;
SDL_memcpy(strPtr, [mime_type UTF8String], len);
new_mime_types[i++] = strPtr;
strPtr += len;
}
}
NSUInteger len = [type lengthOfBytesUsingEncoding:NSUTF8StringEncoding] + 1;
SDL_memcpy(strPtr, [type UTF8String], len);
new_mime_types[i++] = strPtr;
strPtr += len;
}
}
new_mime_types[nformats] = NULL;
*pnformats = nformats;
}
}
return new_mime_types;
}
void Cocoa_CheckClipboardUpdate(SDL_CocoaVideoData *data)
{
@autoreleasepool {
NSPasteboard *pasteboard;
NSInteger count;
pasteboard = [NSPasteboard generalPasteboard];
count = [pasteboard changeCount];
if (count != data.clipboard_count) {
if (count) {
int nformats = 0;
char **new_mime_types = GetMimeTypes(&nformats);
if (new_mime_types) {
SDL_SendClipboardUpdate(false, new_mime_types, nformats);
}
}
data.clipboard_count = count;
}
}
}
bool Cocoa_SetClipboardData(SDL_VideoDevice *_this)
{
@autoreleasepool {
SDL_CocoaVideoData *data = (__bridge SDL_CocoaVideoData *)_this->internal;
NSPasteboard *pasteboard = [NSPasteboard generalPasteboard];
NSPasteboardItem *newItem = [NSPasteboardItem new];
NSMutableArray *utiTypes = [NSMutableArray new];
Cocoa_PasteboardDataProvider *provider = [[Cocoa_PasteboardDataProvider alloc] initWith: _this->clipboard_callback userData: _this->clipboard_userdata];
BOOL itemResult = FALSE;
BOOL writeResult = FALSE;
if (_this->clipboard_callback) {
for (int i = 0; i < _this->num_clipboard_mime_types; i++) {
CFStringRef mimeType = CFStringCreateWithCString(NULL, _this->clipboard_mime_types[i], kCFStringEncodingUTF8);
CFStringRef utiType = UTTypeCreatePreferredIdentifierForTag(kUTTagClassMIMEType, mimeType, NULL);
CFRelease(mimeType);
[utiTypes addObject: (__bridge NSString *)utiType];
CFRelease(utiType);
}
itemResult = [newItem setDataProvider: provider forTypes: utiTypes];
if (itemResult == FALSE) {
return SDL_SetError("Unable to set clipboard item data");
}
[pasteboard clearContents];
writeResult = [pasteboard writeObjects: @[newItem]];
if (writeResult == FALSE) {
return SDL_SetError("Unable to set clipboard data");
}
} else {
[pasteboard clearContents];
}
data.clipboard_count = [pasteboard changeCount];
}
return true;
}
static bool IsMimeType(const char *tag)
{
if (SDL_strchr(tag, '/')) {
// MIME types have slashes
return true;
} else if (SDL_strchr(tag, '.')) {
// UTI identifiers have periods
return false;
} else {
// Not sure, but it's not a UTI identifier
return true;
}
}
static CFStringRef GetUTIType(const char *tag)
{
CFStringRef utiType;
if (IsMimeType(tag)) {
CFStringRef mimeType = CFStringCreateWithCString(NULL, tag, kCFStringEncodingUTF8);
utiType = UTTypeCreatePreferredIdentifierForTag(kUTTagClassMIMEType, mimeType, NULL);
CFRelease(mimeType);
} else {
utiType = CFStringCreateWithCString(NULL, tag, kCFStringEncodingUTF8);
}
return utiType;
}
void *Cocoa_GetClipboardData(SDL_VideoDevice *_this, const char *mime_type, size_t *size)
{
@autoreleasepool {
NSPasteboard *pasteboard = [NSPasteboard generalPasteboard];
void *data = NULL;
*size = 0;
for (NSPasteboardItem *item in [pasteboard pasteboardItems]) {
NSData *itemData;
CFStringRef utiType = GetUTIType(mime_type);
itemData = [item dataForType: (__bridge NSString *)utiType];
CFRelease(utiType);
if (itemData != nil) {
NSUInteger length = [itemData length];
*size = (size_t)length;
data = SDL_malloc(*size + sizeof(Uint32));
if (data) {
[itemData getBytes: data length: length];
SDL_memset((Uint8 *)data + length, 0, sizeof(Uint32));
}
break;
}
}
return data;
}
}
bool Cocoa_HasClipboardData(SDL_VideoDevice *_this, const char *mime_type)
{
bool result = false;
@autoreleasepool {
NSPasteboard *pasteboard = [NSPasteboard generalPasteboard];
CFStringRef utiType = GetUTIType(mime_type);
if ([pasteboard canReadItemWithDataConformingToTypes: @[(__bridge NSString *)utiType]]) {
result = true;
}
CFRelease(utiType);
}
return result;
}
#endif // SDL_VIDEO_DRIVER_COCOA
|
