| 1 |
/* |
| 2 |
* clip_unix.cpp - Clipboard handling, Unix implementation |
| 3 |
* |
| 4 |
* SheepShaver (C) 1997-2003 Christian Bauer and Marc Hellwig |
| 5 |
* |
| 6 |
* This program is free software; you can redistribute it and/or modify |
| 7 |
* it under the terms of the GNU General Public License as published by |
| 8 |
* the Free Software Foundation; either version 2 of the License, or |
| 9 |
* (at your option) any later version. |
| 10 |
* |
| 11 |
* This program is distributed in the hope that it will be useful, |
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
* GNU General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU General Public License |
| 17 |
* along with this program; if not, write to the Free Software |
| 18 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 |
*/ |
| 20 |
|
| 21 |
/* |
| 22 |
* NOTES: |
| 23 |
* |
| 24 |
* We must have (fast) X11 display locking routines. Otherwise, we |
| 25 |
* can corrupt the X11 event queue from the emulator thread whereas |
| 26 |
* the redraw thread is expected to handle them. |
| 27 |
* |
| 28 |
* Two functions are exported to video_x.cpp: |
| 29 |
* - ClipboardSelectionClear() |
| 30 |
* called when we lose the selection ownership |
| 31 |
* - ClipboardSelectionRequest() |
| 32 |
* called when another client wants our clipboard data |
| 33 |
* The display is locked by the redraw thread during their execution. |
| 34 |
* |
| 35 |
* On PutScrap (Mac application wrote to clipboard), we always cache |
| 36 |
* the Mac clipboard to a local structure (clip_data). Then, the |
| 37 |
* selection ownership is grabbed until ClipboardSelectionClear() |
| 38 |
* occurs. In that case, contents in cache becomes invalid. |
| 39 |
* |
| 40 |
* On GetScrap (Mac application reads clipboard), we always fetch |
| 41 |
* data from the X11 clipboard and immediately put it back to Mac |
| 42 |
* side. Local cache does not need to be updated. If the selection |
| 43 |
* owner supports the TIMESTAMP target, we can avoid useless copies. |
| 44 |
* |
| 45 |
* For safety purposes, we lock the X11 display in the emulator |
| 46 |
* thread during the whole GetScrap/PutScrap execution. Of course, we |
| 47 |
* temporarily release the lock when waiting for SelectioNotify. |
| 48 |
*/ |
| 49 |
|
| 50 |
#include "sysdeps.h" |
| 51 |
|
| 52 |
#include <X11/Xlib.h> |
| 53 |
#include <X11/Xatom.h> |
| 54 |
#include <pthread.h> |
| 55 |
#include <vector> |
| 56 |
|
| 57 |
#include "macos_util.h" |
| 58 |
#include "clip.h" |
| 59 |
#include "prefs.h" |
| 60 |
#include "cpu_emulation.h" |
| 61 |
#include "main.h" |
| 62 |
#include "emul_op.h" |
| 63 |
|
| 64 |
#define DEBUG 0 |
| 65 |
#include "debug.h" |
| 66 |
|
| 67 |
#ifndef NO_STD_NAMESPACE |
| 68 |
using std::vector; |
| 69 |
#endif |
| 70 |
|
| 71 |
|
| 72 |
// Do we replace PutScrap()? |
| 73 |
#define REPLACE_PUTSCRAP 1 |
| 74 |
|
| 75 |
// Do we replace GetScrap()? |
| 76 |
#define REPLACE_GETSCRAP 1 |
| 77 |
|
| 78 |
// Do we want GetScrap() to check for TIMESTAMP and optimize out clipboard syncs? |
| 79 |
#define GETSCRAP_REQUESTS_TIMESTAMP 0 |
| 80 |
|
| 81 |
// Do we want GetScrap() to first check for TARGETS available from the clipboard? |
| 82 |
#define GETSCRAP_REQUESTS_TARGETS 0 |
| 83 |
|
| 84 |
|
| 85 |
// From main_linux.cpp |
| 86 |
extern Display *x_display; |
| 87 |
|
| 88 |
|
| 89 |
// Conversion tables |
| 90 |
static const uint8 mac2iso[0x80] = { |
| 91 |
0xc4, 0xc5, 0xc7, 0xc9, 0xd1, 0xd6, 0xdc, 0xe1, |
| 92 |
0xe0, 0xe2, 0xe4, 0xe3, 0xe5, 0xe7, 0xe9, 0xe8, |
| 93 |
0xea, 0xeb, 0xed, 0xec, 0xee, 0xef, 0xf1, 0xf3, |
| 94 |
0xf2, 0xf4, 0xf6, 0xf5, 0xfa, 0xf9, 0xfb, 0xfc, |
| 95 |
0x2b, 0xb0, 0xa2, 0xa3, 0xa7, 0xb7, 0xb6, 0xdf, |
| 96 |
0xae, 0xa9, 0x20, 0xb4, 0xa8, 0x23, 0xc6, 0xd8, |
| 97 |
0x20, 0xb1, 0x3c, 0x3e, 0xa5, 0xb5, 0xf0, 0x53, |
| 98 |
0x50, 0x70, 0x2f, 0xaa, 0xba, 0x4f, 0xe6, 0xf8, |
| 99 |
0xbf, 0xa1, 0xac, 0x2f, 0x66, 0x7e, 0x44, 0xab, |
| 100 |
0xbb, 0x2e, 0x20, 0xc0, 0xc3, 0xd5, 0x4f, 0x6f, |
| 101 |
0x2d, 0x2d, 0x22, 0x22, 0x60, 0x27, 0xf7, 0x20, |
| 102 |
0xff, 0x59, 0x2f, 0xa4, 0x3c, 0x3e, 0x66, 0x66, |
| 103 |
0x23, 0xb7, 0x2c, 0x22, 0x25, 0xc2, 0xca, 0xc1, |
| 104 |
0xcb, 0xc8, 0xcd, 0xce, 0xcf, 0xcc, 0xd3, 0xd4, |
| 105 |
0x20, 0xd2, 0xda, 0xdb, 0xd9, 0x69, 0x5e, 0x7e, |
| 106 |
0xaf, 0x20, 0xb7, 0xb0, 0xb8, 0x22, 0xb8, 0x20 |
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}; |
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|
| 109 |
static const uint8 iso2mac[0x80] = { |
| 110 |
0xad, 0xb0, 0xe2, 0xc4, 0xe3, 0xc9, 0xa0, 0xe0, |
| 111 |
0xf6, 0xe4, 0xde, 0xdc, 0xce, 0xb2, 0xb3, 0xb6, |
| 112 |
0xb7, 0xd4, 0xd5, 0xd2, 0xd3, 0xa5, 0xd0, 0xd1, |
| 113 |
0xf7, 0xaa, 0xdf, 0xdd, 0xcf, 0xba, 0xfd, 0xd9, |
| 114 |
0xca, 0xc1, 0xa2, 0xa3, 0xdb, 0xb4, 0xbd, 0xa4, |
| 115 |
0xac, 0xa9, 0xbb, 0xc7, 0xc2, 0xf0, 0xa8, 0xf8, |
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0xa1, 0xb1, 0xc3, 0xc5, 0xab, 0xb5, 0xa6, 0xe1, |
| 117 |
0xfc, 0xc6, 0xbc, 0xc8, 0xf9, 0xda, 0xd7, 0xc0, |
| 118 |
0xcb, 0xe7, 0xe5, 0xcc, 0x80, 0x81, 0xae, 0x82, |
| 119 |
0xe9, 0x83, 0xe6, 0xe8, 0xed, 0xea, 0xeb, 0xec, |
| 120 |
0xf5, 0x84, 0xf1, 0xee, 0xef, 0xcd, 0x85, 0xfb, |
| 121 |
0xaf, 0xf4, 0xf2, 0xf3, 0x86, 0xfa, 0xb8, 0xa7, |
| 122 |
0x88, 0x87, 0x89, 0x8b, 0x8a, 0x8c, 0xbe, 0x8d, |
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0x8f, 0x8e, 0x90, 0x91, 0x93, 0x92, 0x94, 0x95, |
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0xfe, 0x96, 0x98, 0x97, 0x99, 0x9b, 0x9a, 0xd6, |
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0xbf, 0x9d, 0x9c, 0x9e, 0x9f, 0xff, 0xb9, 0xd8 |
| 126 |
}; |
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|
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// Flag: Don't convert clipboard text |
| 129 |
static bool no_clip_conversion; |
| 130 |
|
| 131 |
// Flag for PutScrap(): the data was put by GetScrap(), don't bounce it back to the Be side |
| 132 |
static bool we_put_this_data = false; |
| 133 |
|
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// X11 variables |
| 135 |
static int screen; // Screen number |
| 136 |
static Window rootwin, clip_win; // Root window and the clipboard window |
| 137 |
static Atom xa_clipboard; |
| 138 |
static Atom xa_targets; |
| 139 |
static Atom xa_multiple; |
| 140 |
static Atom xa_timestamp; |
| 141 |
static Atom xa_atom_pair; |
| 142 |
|
| 143 |
// Define a byte array (rewrite if it's a bottleneck) |
| 144 |
struct ByteArray : public vector<uint8> { |
| 145 |
void resize(int size) { reserve(size); vector<uint8>::resize(size); } |
| 146 |
uint8 *data() { return &at(0); } |
| 147 |
}; |
| 148 |
|
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// Clipboard data for requestors |
| 150 |
struct ClipboardData { |
| 151 |
Time time; |
| 152 |
Atom type; |
| 153 |
ByteArray data; |
| 154 |
}; |
| 155 |
static ClipboardData clip_data; |
| 156 |
|
| 157 |
// Prototypes |
| 158 |
static void do_putscrap(uint32 type, void *scrap, int32 length); |
| 159 |
static void do_getscrap(void **handle, uint32 type, int32 offset); |
| 160 |
|
| 161 |
|
| 162 |
/* |
| 163 |
* Read an X11 property (hack from QT 3.1.2) |
| 164 |
*/ |
| 165 |
|
| 166 |
static inline int max_selection_incr(Display *dpy) |
| 167 |
{ |
| 168 |
int max_request_size = 4 * XMaxRequestSize(dpy); |
| 169 |
if (max_request_size > 4 * 65536) |
| 170 |
max_request_size = 4 * 65536; |
| 171 |
else if ((max_request_size -= 100) < 0) |
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max_request_size = 100; |
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return max_request_size; |
| 174 |
} |
| 175 |
|
| 176 |
static bool read_property(Display *dpy, Window win, |
| 177 |
Atom property, bool deleteProperty, |
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ByteArray & buffer, int *size, Atom *type, |
| 179 |
int *format, bool nullterm) |
| 180 |
{ |
| 181 |
int maxsize = max_selection_incr(dpy); |
| 182 |
unsigned long bytes_left; |
| 183 |
unsigned long length; |
| 184 |
unsigned char *data; |
| 185 |
Atom dummy_type; |
| 186 |
int dummy_format; |
| 187 |
|
| 188 |
if (!type) |
| 189 |
type = &dummy_type; |
| 190 |
if (!format) |
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format = &dummy_format; |
| 192 |
|
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// Don't read anything but get the size of the property data |
| 194 |
if (XGetWindowProperty(dpy, win, property, 0, 0, False, |
| 195 |
AnyPropertyType, type, format, &length, &bytes_left, &data) != Success) { |
| 196 |
buffer.clear(); |
| 197 |
return false; |
| 198 |
} |
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XFree(data); |
| 200 |
|
| 201 |
int offset = 0, buffer_offset = 0, format_inc = 1, proplen = bytes_left; |
| 202 |
|
| 203 |
switch (*format) { |
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case 16: |
| 205 |
format_inc = sizeof(short) / 2; |
| 206 |
proplen *= format_inc; |
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break; |
| 208 |
case 32: |
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format_inc = sizeof(long) / 4; |
| 210 |
proplen *= format_inc; |
| 211 |
break; |
| 212 |
} |
| 213 |
|
| 214 |
buffer.resize(proplen + (nullterm ? 1 : 0)); |
| 215 |
while (bytes_left) { |
| 216 |
if (XGetWindowProperty(dpy, win, property, offset, maxsize / 4, |
| 217 |
False, AnyPropertyType, type, format, |
| 218 |
&length, &bytes_left, &data) != Success) |
| 219 |
break; |
| 220 |
|
| 221 |
offset += length / (32 / *format); |
| 222 |
length *= format_inc * (*format / 8); |
| 223 |
|
| 224 |
memcpy(buffer.data() + buffer_offset, data, length); |
| 225 |
buffer_offset += length; |
| 226 |
XFree(data); |
| 227 |
} |
| 228 |
|
| 229 |
if (nullterm) |
| 230 |
buffer[buffer_offset] = '\0'; |
| 231 |
|
| 232 |
if (size) |
| 233 |
*size = buffer_offset; |
| 234 |
|
| 235 |
if (deleteProperty) |
| 236 |
XDeleteProperty(dpy, win, property); |
| 237 |
|
| 238 |
XFlush(dpy); |
| 239 |
return true; |
| 240 |
} |
| 241 |
|
| 242 |
|
| 243 |
/* |
| 244 |
* Timed wait for an SelectionNotify event |
| 245 |
*/ |
| 246 |
|
| 247 |
static const uint64 SELECTION_MAX_WAIT = 500000; // 500 ms |
| 248 |
|
| 249 |
static bool wait_for_selection_notify_event(Display *dpy, Window win, XEvent *event, int timeout) |
| 250 |
{ |
| 251 |
uint64 start = GetTicks_usec(); |
| 252 |
|
| 253 |
do { |
| 254 |
// Wait |
| 255 |
XDisplayUnlock(); |
| 256 |
Delay_usec(5000); |
| 257 |
XDisplayLock(); |
| 258 |
|
| 259 |
// Check for SelectionNotify event |
| 260 |
if (XCheckTypedWindowEvent(dpy, win, SelectionNotify, event)) |
| 261 |
return true; |
| 262 |
|
| 263 |
} while ((GetTicks_usec() - start) < timeout); |
| 264 |
|
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return false; |
| 266 |
} |
| 267 |
|
| 268 |
|
| 269 |
/* |
| 270 |
* Initialization |
| 271 |
*/ |
| 272 |
|
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void ClipInit(void) |
| 274 |
{ |
| 275 |
no_clip_conversion = PrefsFindBool("noclipconversion"); |
| 276 |
|
| 277 |
// Find screen and root window |
| 278 |
screen = XDefaultScreen(x_display); |
| 279 |
rootwin = XRootWindow(x_display, screen); |
| 280 |
|
| 281 |
// Create fake window to receive selection events |
| 282 |
clip_win = XCreateSimpleWindow(x_display, rootwin, 0, 0, 1, 1, 0, 0, 0); |
| 283 |
|
| 284 |
// Initialize X11 atoms |
| 285 |
xa_clipboard = XInternAtom(x_display, "CLIPBOARD", False); |
| 286 |
xa_targets = XInternAtom(x_display, "TARGETS", False); |
| 287 |
xa_multiple = XInternAtom(x_display, "MULTIPLE", False); |
| 288 |
xa_timestamp = XInternAtom(x_display, "TIMESTAMP", False); |
| 289 |
xa_atom_pair = XInternAtom(x_display, "ATOM_PAIR", False); |
| 290 |
} |
| 291 |
|
| 292 |
|
| 293 |
/* |
| 294 |
* Deinitialization |
| 295 |
*/ |
| 296 |
|
| 297 |
void ClipExit(void) |
| 298 |
{ |
| 299 |
// Close window |
| 300 |
XDestroyWindow(x_display, clip_win); |
| 301 |
} |
| 302 |
|
| 303 |
|
| 304 |
/* |
| 305 |
* Mac application wrote to clipboard |
| 306 |
*/ |
| 307 |
|
| 308 |
void PutScrap(uint32 type, void *scrap, int32 length) |
| 309 |
{ |
| 310 |
D(bug("PutScrap type %08lx, data %p, length %ld\n", type, scrap, length)); |
| 311 |
if (!REPLACE_PUTSCRAP) |
| 312 |
return; |
| 313 |
if (we_put_this_data) { |
| 314 |
we_put_this_data = false; |
| 315 |
return; |
| 316 |
} |
| 317 |
if (length <= 0) |
| 318 |
return; |
| 319 |
|
| 320 |
XDisplayLock(); |
| 321 |
do_putscrap(type, scrap, length); |
| 322 |
XDisplayUnlock(); |
| 323 |
} |
| 324 |
|
| 325 |
static void do_putscrap(uint32 type, void *scrap, int32 length) |
| 326 |
{ |
| 327 |
clip_data.type = None; |
| 328 |
switch (type) { |
| 329 |
case FOURCC('T','E','X','T'): |
| 330 |
D(bug(" clipping TEXT\n")); |
| 331 |
clip_data.type = XA_STRING; |
| 332 |
clip_data.data.clear(); |
| 333 |
clip_data.data.reserve(length); |
| 334 |
|
| 335 |
// Convert text from Mac charset to ISO-Latin1 |
| 336 |
uint8 *p = (uint8 *)scrap; |
| 337 |
for (int i=0; i<length; i++) { |
| 338 |
uint8 c = *p++; |
| 339 |
if (c < 0x80) { |
| 340 |
if (c == 13) // CR -> LF |
| 341 |
c = 10; |
| 342 |
} else if (!no_clip_conversion) |
| 343 |
c = mac2iso[c & 0x7f]; |
| 344 |
clip_data.data.push_back(c); |
| 345 |
} |
| 346 |
break; |
| 347 |
} |
| 348 |
|
| 349 |
// Acquire selection ownership |
| 350 |
if (clip_data.type != None) { |
| 351 |
clip_data.time = CurrentTime; |
| 352 |
while (XGetSelectionOwner(x_display, xa_clipboard) != clip_win) |
| 353 |
XSetSelectionOwner(x_display, xa_clipboard, clip_win, clip_data.time); |
| 354 |
} |
| 355 |
} |
| 356 |
|
| 357 |
|
| 358 |
/* |
| 359 |
* Mac application reads clipboard |
| 360 |
*/ |
| 361 |
|
| 362 |
void GetScrap(void **handle, uint32 type, int32 offset) |
| 363 |
{ |
| 364 |
D(bug("GetScrap handle %p, type %08x, offset %d\n", handle, type, offset)); |
| 365 |
if (!REPLACE_GETSCRAP) |
| 366 |
return; |
| 367 |
|
| 368 |
XDisplayLock(); |
| 369 |
do_getscrap(handle, type, offset); |
| 370 |
XDisplayUnlock(); |
| 371 |
} |
| 372 |
|
| 373 |
static void do_getscrap(void **handle, uint32 type, int32 offset) |
| 374 |
{ |
| 375 |
ByteArray data; |
| 376 |
XEvent event; |
| 377 |
|
| 378 |
// If we own the selection, the data is already available on MacOS side |
| 379 |
if (XGetSelectionOwner(x_display, xa_clipboard) == clip_win) |
| 380 |
return; |
| 381 |
|
| 382 |
// Check TIMESTAMP |
| 383 |
#if GETSCRAP_REQUESTS_TIMESTAMP |
| 384 |
static Time last_timestamp = 0; |
| 385 |
XConvertSelection(x_display, xa_clipboard, xa_timestamp, xa_clipboard, clip_win, CurrentTime); |
| 386 |
if (wait_for_selection_notify_event(x_display, clip_win, &event, SELECTION_MAX_WAIT) && |
| 387 |
event.xselection.property != None && |
| 388 |
read_property(x_display, |
| 389 |
event.xselection.requestor, event.xselection.property, |
| 390 |
true, data, 0, 0, 0, false)) { |
| 391 |
Time timestamp = ((long *)data.data())[0]; |
| 392 |
if (timestamp <= last_timestamp) |
| 393 |
return; |
| 394 |
} |
| 395 |
last_timestamp = CurrentTime; |
| 396 |
#endif |
| 397 |
|
| 398 |
// Get TARGETS available |
| 399 |
#if GETSCRAP_REQUESTS_TARGETS |
| 400 |
XConvertSelection(x_display, xa_clipboard, xa_targets, xa_clipboard, clip_win, CurrentTime); |
| 401 |
if (!wait_for_selection_notify_event(x_display, clip_win, &event, SELECTION_MAX_WAIT) || |
| 402 |
event.xselection.property == None || |
| 403 |
!read_property(x_display, |
| 404 |
event.xselection.requestor, event.xselection.property, |
| 405 |
true, data, 0, 0, 0, false)) |
| 406 |
return; |
| 407 |
#endif |
| 408 |
|
| 409 |
// Get appropriate format for requested data |
| 410 |
Atom format = None; |
| 411 |
#if GETSCRAP_REQUESTS_TARGETS |
| 412 |
int n_atoms = data.size() / sizeof(long); |
| 413 |
long *atoms = (long *)data.data(); |
| 414 |
for (int i = 0; i < n_atoms; i++) { |
| 415 |
Atom target = atoms[i]; |
| 416 |
switch (type) { |
| 417 |
case FOURCC('T','E','X','T'): |
| 418 |
D(bug(" clipping TEXT\n")); |
| 419 |
if (target == XA_STRING) |
| 420 |
format = target; |
| 421 |
break; |
| 422 |
case FOURCC('P','I','C','T'): |
| 423 |
break; |
| 424 |
} |
| 425 |
} |
| 426 |
#else |
| 427 |
switch (type) { |
| 428 |
case FOURCC('T','E','X','T'): |
| 429 |
D(bug(" clipping TEXT\n")); |
| 430 |
format = XA_STRING; |
| 431 |
break; |
| 432 |
case FOURCC('P','I','C','T'): |
| 433 |
break; |
| 434 |
} |
| 435 |
#endif |
| 436 |
if (format == None) |
| 437 |
return; |
| 438 |
|
| 439 |
// Get the native clipboard data |
| 440 |
XConvertSelection(x_display, xa_clipboard, format, xa_clipboard, clip_win, CurrentTime); |
| 441 |
if (!wait_for_selection_notify_event(x_display, clip_win, &event, SELECTION_MAX_WAIT) || |
| 442 |
event.xselection.property == None || |
| 443 |
!read_property(x_display, |
| 444 |
event.xselection.requestor, event.xselection.property, |
| 445 |
false, data, 0, 0, 0, format == XA_STRING)) |
| 446 |
return; |
| 447 |
|
| 448 |
// Allocate space for new scrap in MacOS side |
| 449 |
M68kRegisters r; |
| 450 |
r.d[0] = data.size(); |
| 451 |
Execute68kTrap(0xa71e, &r); // NewPtrSysClear() |
| 452 |
uint32 scrap_area = r.a[0]; |
| 453 |
|
| 454 |
if (scrap_area) { |
| 455 |
switch (type) { |
| 456 |
case FOURCC('T','E','X','T'): |
| 457 |
// Convert text from ISO-Latin1 to Mac charset |
| 458 |
uint8 *p = Mac2HostAddr(scrap_area); |
| 459 |
for (int i = 0; i < data.size(); i++) { |
| 460 |
uint8 c = data[i]; |
| 461 |
if (c < 0x80) { |
| 462 |
if (c == 10) // LF -> CR |
| 463 |
c = 13; |
| 464 |
} else if (!no_clip_conversion) |
| 465 |
c = iso2mac[c & 0x7f]; |
| 466 |
*p++ = c; |
| 467 |
} |
| 468 |
break; |
| 469 |
} |
| 470 |
|
| 471 |
// Add new data to clipboard |
| 472 |
static uint8 proc[] = { |
| 473 |
0x59, 0x8f, // subq.l #4,sp |
| 474 |
0xa9, 0xfc, // ZeroScrap() |
| 475 |
0x2f, 0x3c, 0, 0, 0, 0, // move.l #length,-(sp) |
| 476 |
0x2f, 0x3c, 0, 0, 0, 0, // move.l #type,-(sp) |
| 477 |
0x2f, 0x3c, 0, 0, 0, 0, // move.l #outbuf,-(sp) |
| 478 |
0xa9, 0xfe, // PutScrap() |
| 479 |
0x58, 0x8f, // addq.l #4,sp |
| 480 |
M68K_RTS >> 8, M68K_RTS |
| 481 |
}; |
| 482 |
uint32 proc_area = (uint32)proc; // FIXME: make sure 32-bit relocs are used |
| 483 |
WriteMacInt32(proc_area + 6, data.size()); |
| 484 |
WriteMacInt32(proc_area + 12, type); |
| 485 |
WriteMacInt32(proc_area + 18, scrap_area); |
| 486 |
we_put_this_data = true; |
| 487 |
Execute68k(proc_area, &r); |
| 488 |
|
| 489 |
// We are done with scratch memory |
| 490 |
r.a[0] = scrap_area; |
| 491 |
Execute68kTrap(0xa01f, &r); // DisposePtr |
| 492 |
} |
| 493 |
} |
| 494 |
|
| 495 |
|
| 496 |
/* |
| 497 |
* Handle X11 selection events |
| 498 |
*/ |
| 499 |
|
| 500 |
void ClipboardSelectionClear(XSelectionClearEvent *xev) |
| 501 |
{ |
| 502 |
if (xev->selection != xa_clipboard) |
| 503 |
return; |
| 504 |
|
| 505 |
D(bug("Selection cleared, lost clipboard ownership\n")); |
| 506 |
clip_data.type = None; |
| 507 |
clip_data.data.clear(); |
| 508 |
} |
| 509 |
|
| 510 |
// Top level selection handler |
| 511 |
static bool handle_selection(XSelectionRequestEvent *req, bool is_multiple); |
| 512 |
|
| 513 |
static bool handle_selection_TIMESTAMP(XSelectionRequestEvent *req) |
| 514 |
{ |
| 515 |
// 32-bit integer values are always passed as a long whatever is its size |
| 516 |
long timestamp = clip_data.time; |
| 517 |
|
| 518 |
// Change requestor property |
| 519 |
XChangeProperty(x_display, req->requestor, req->property, |
| 520 |
XA_INTEGER, 32, |
| 521 |
PropModeReplace, (uint8 *)×tamp, 1); |
| 522 |
|
| 523 |
return true; |
| 524 |
} |
| 525 |
|
| 526 |
static bool handle_selection_TARGETS(XSelectionRequestEvent *req) |
| 527 |
{ |
| 528 |
// Default supported targets |
| 529 |
vector<long> targets; |
| 530 |
targets.push_back(xa_targets); |
| 531 |
targets.push_back(xa_multiple); |
| 532 |
targets.push_back(xa_timestamp); |
| 533 |
|
| 534 |
// Extra targets matchin current clipboard data |
| 535 |
if (clip_data.type != None) |
| 536 |
targets.push_back(clip_data.type); |
| 537 |
|
| 538 |
// Change requestor property |
| 539 |
XChangeProperty(x_display, req->requestor, req->property, |
| 540 |
xa_targets, 32, |
| 541 |
PropModeReplace, (uint8 *)&targets.at(0), targets.size()); |
| 542 |
|
| 543 |
return true; |
| 544 |
} |
| 545 |
|
| 546 |
static bool handle_selection_STRING(XSelectionRequestEvent *req) |
| 547 |
{ |
| 548 |
// Make sure we have valid data to send though ICCCM compliant |
| 549 |
// clients should have first requested TARGETS to identify |
| 550 |
// this possibility. |
| 551 |
if (clip_data.type != XA_STRING) |
| 552 |
return false; |
| 553 |
|
| 554 |
// Send the string, it's already encoded as ISO-8859-1 |
| 555 |
XChangeProperty(x_display, req->requestor, req->property, |
| 556 |
XA_STRING, 8, |
| 557 |
PropModeReplace, (uint8 *)clip_data.data.data(), clip_data.data.size()); |
| 558 |
|
| 559 |
return true; |
| 560 |
} |
| 561 |
|
| 562 |
static bool handle_selection_MULTIPLE(XSelectionRequestEvent *req) |
| 563 |
{ |
| 564 |
Atom rtype; |
| 565 |
int rformat; |
| 566 |
ByteArray data; |
| 567 |
|
| 568 |
if (!read_property(x_display, req->requestor, req->property, |
| 569 |
false, data, 0, &rtype, &rformat, 0)) |
| 570 |
return false; |
| 571 |
|
| 572 |
// rtype should be ATOM_PAIR but some clients don't honour that |
| 573 |
if (rformat != 32) |
| 574 |
return false; |
| 575 |
|
| 576 |
struct AtomPair { long target; long property; }; |
| 577 |
AtomPair *atom_pairs = (AtomPair *)data.data(); |
| 578 |
int n_atom_pairs = data.size() / sizeof(AtomPair); |
| 579 |
|
| 580 |
bool handled = true; |
| 581 |
if (n_atom_pairs) { |
| 582 |
// Setup a new XSelectionRequestEvent when servicing individual requests |
| 583 |
XSelectionRequestEvent event; |
| 584 |
memcpy(&event, req, sizeof(event)); |
| 585 |
|
| 586 |
for (int i = 0; i < n_atom_pairs; i++) { |
| 587 |
Atom target = atom_pairs[i].target; |
| 588 |
Atom property = atom_pairs[i].property; |
| 589 |
|
| 590 |
// None is not a valid property |
| 591 |
if (property == None) |
| 592 |
continue; |
| 593 |
|
| 594 |
// Service this request |
| 595 |
event.target = target; |
| 596 |
event.property = property; |
| 597 |
if (!handle_selection(&event, true)) { |
| 598 |
/* FIXME: ICCCM 2.6.2: |
| 599 |
|
| 600 |
If the owner fails to convert the target named by an |
| 601 |
atom in the MULTIPLE property, it should replace that |
| 602 |
atom in the property with None. |
| 603 |
*/ |
| 604 |
handled = false; |
| 605 |
} |
| 606 |
} |
| 607 |
} |
| 608 |
|
| 609 |
return handled; |
| 610 |
} |
| 611 |
|
| 612 |
static bool handle_selection(XSelectionRequestEvent *req, bool is_multiple) |
| 613 |
{ |
| 614 |
bool handled =false; |
| 615 |
|
| 616 |
if (req->target == xa_timestamp) |
| 617 |
handled = handle_selection_TIMESTAMP(req); |
| 618 |
else if (req->target == xa_targets) |
| 619 |
handled = handle_selection_TARGETS(req); |
| 620 |
else if (req->target == XA_STRING) |
| 621 |
handled = handle_selection_STRING(req); |
| 622 |
else if (req->target == xa_multiple) |
| 623 |
handled = handle_selection_MULTIPLE(req); |
| 624 |
|
| 625 |
// Notify requestor only when we are done with his request |
| 626 |
if (handled && !is_multiple) { |
| 627 |
XEvent out_event; |
| 628 |
out_event.xselection.type = SelectionNotify; |
| 629 |
out_event.xselection.requestor = req->requestor; |
| 630 |
out_event.xselection.selection = req->selection; |
| 631 |
out_event.xselection.target = req->target; |
| 632 |
out_event.xselection.property = handled ? req->property : None; |
| 633 |
out_event.xselection.time = req->time; |
| 634 |
XSendEvent(x_display, req->requestor, False, 0, &out_event); |
| 635 |
} |
| 636 |
} |
| 637 |
|
| 638 |
void ClipboardSelectionRequest(XSelectionRequestEvent *req) |
| 639 |
{ |
| 640 |
if (req->requestor == clip_win || req->selection != xa_clipboard) |
| 641 |
return; |
| 642 |
|
| 643 |
D(bug("Selection requested from 0x%lx to 0x%lx (%s) 0x%lx (%s)\n", |
| 644 |
req->requestor, |
| 645 |
req->selection, |
| 646 |
XGetAtomName(req->display, req->selection), |
| 647 |
req->target, |
| 648 |
XGetAtomName(req->display, req->target))); |
| 649 |
|
| 650 |
handle_selection(req, false); |
| 651 |
} |
