1542 lines
38 KiB
Objective-C
1542 lines
38 KiB
Objective-C
/* x-selection.m -- proxies between NSPasteboard and X11 selections
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Copyright (c) 2002, 2008 Apple Computer, Inc. All rights reserved.
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation files
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(the "Software"), to deal in the Software without restriction,
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including without limitation the rights to use, copy, modify, merge,
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publish, distribute, sublicense, and/or sell copies of the Software,
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and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT
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HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name(s) of the above
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copyright holders shall not be used in advertising or otherwise to
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promote the sale, use or other dealings in this Software without
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prior written authorization.
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*/
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#import "x-selection.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <X11/Xatom.h>
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#include <X11/Xutil.h>
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#import <AppKit/NSGraphics.h>
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#import <AppKit/NSImage.h>
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#import <AppKit/NSBitmapImageRep.h>
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/*
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* The basic design of the pbproxy code is as follows.
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*
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* When a client selects text, say from an xterm - we only copy it when the
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* X11 Edit->Copy menu item is pressed or the shortcut activated. In this
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* case we take the PRIMARY selection, and set it as the NSPasteboard data.
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*
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* When an X11 client copies something to the CLIPBOARD, pbproxy greedily grabs
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* the data, sets it as the NSPasteboard data, and finally sets itself as
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* owner of the CLIPBOARD.
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*
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* When an X11 window is activated we check to see if the NSPasteboard has
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* changed. If the NSPasteboard has changed, then we set pbproxy as owner
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* of the PRIMARY and CLIPBOARD and respond to requests for text and images.
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*
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* The behavior is now dynamic since the information above was written.
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* The behavior is now dependent on the pbproxy_prefs below.
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*/
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/*
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* TODO:
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* 1. handle MULTIPLE - I need to study the ICCCM further, and find a test app.
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* 2. Handle NSPasteboard updates immediately, not on active/inactive
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* - Open xterm, run 'cat readme.txt | pbcopy'
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*/
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static struct {
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BOOL active ;
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BOOL primary_on_grab; /* This is provided as an option for people who
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* want it and has issues that won't ever be
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* addressed to make it *always* work.
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*/
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BOOL clipboard_to_pasteboard;
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BOOL pasteboard_to_primary;
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BOOL pasteboard_to_clipboard;
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} pbproxy_prefs = { YES, NO, YES, YES, YES };
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@implementation x_selection
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static struct propdata null_propdata = {NULL, 0, 0};
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#ifdef DEBUG
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static void
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dump_prefs (FILE *fp) {
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fprintf(fp,
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"pbproxy preferences:\n"
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"\tactive %u\n"
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"\tprimary_on_grab %u\n"
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"\tclipboard_to_pasteboard %u\n"
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"\tpasteboard_to_primary %u\n"
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"\tpasteboard_to_clipboard %u\n",
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pbproxy_prefs.active,
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pbproxy_prefs.primary_on_grab,
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pbproxy_prefs.clipboard_to_pasteboard,
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pbproxy_prefs.pasteboard_to_primary,
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pbproxy_prefs.pasteboard_to_clipboard);
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}
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#endif
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extern CFStringRef app_prefs_domain_cfstr;
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static BOOL
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prefs_get_bool (CFStringRef key, BOOL defaultValue) {
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Boolean value, ok;
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value = CFPreferencesGetAppBooleanValue (key, app_prefs_domain_cfstr, &ok);
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return ok ? (BOOL) value : defaultValue;
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}
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static void
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init_propdata (struct propdata *pdata)
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{
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*pdata = null_propdata;
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}
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static void
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free_propdata (struct propdata *pdata)
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{
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free (pdata->data);
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*pdata = null_propdata;
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}
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/*
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* Return True if an error occurs. Return False if pdata has data
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* and we finished.
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* The property is only deleted when bytesleft is 0 if delete is True.
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*/
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static Bool
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get_property(Window win, Atom property, struct propdata *pdata, Bool delete, Atom *type)
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{
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long offset = 0;
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unsigned long numitems, bytesleft = 0;
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#ifdef TEST
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/* This is used to test the growth handling. */
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unsigned long length = 4UL;
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#else
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unsigned long length = (100000UL + 3) / 4;
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#endif
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unsigned char *buf = NULL, *chunk = NULL;
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size_t buflen = 0, chunkbytesize = 0;
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int format;
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TRACE ();
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if(None == property)
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return True;
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do
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{
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unsigned long newbuflen = 0;
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unsigned char *newbuf = NULL;
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#ifdef TEST
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printf("bytesleft %lu\n", bytesleft);
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#endif
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if (Success != XGetWindowProperty (xpbproxy_dpy, win, property,
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offset, length, delete,
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AnyPropertyType,
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type, &format, &numitems,
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&bytesleft, &chunk))
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{
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DB ("Error while getting window property.\n");
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*pdata = null_propdata;
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free (buf);
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return True;
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}
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#ifdef TEST
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printf("format %d numitems %lu bytesleft %lu\n",
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format, numitems, bytesleft);
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printf("type %s\n", XGetAtomName (xpbproxy_dpy, *type));
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#endif
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/* Format is the number of bits. */
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chunkbytesize = numitems * (format / 8);
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#ifdef TEST
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printf("chunkbytesize %zu\n", chunkbytesize);
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#endif
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newbuflen = buflen + chunkbytesize;
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if (newbuflen > 0)
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{
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newbuf = realloc (buf, newbuflen);
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if (NULL == newbuf)
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{
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XFree (chunk);
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free (buf);
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return True;
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}
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memcpy (newbuf + buflen, chunk, chunkbytesize);
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XFree (chunk);
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buf = newbuf;
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buflen = newbuflen;
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/* offset is a multiple of 32 bits*/
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offset += chunkbytesize / 4;
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}
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else
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{
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if (chunk)
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XFree (chunk);
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}
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#ifdef TEST
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printf("bytesleft %lu\n", bytesleft);
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#endif
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} while (bytesleft > 0);
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pdata->data = buf;
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pdata->length = buflen;
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pdata->format = format;
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return /*success*/ False;
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}
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/* Implementation methods */
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/* This finds the preferred type from a TARGETS list.*/
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- (Atom) find_preferred:(struct propdata *)pdata
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{
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Atom a = None;
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size_t i, step;
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Bool png = False, jpeg = False, utf8 = False, string = False;
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TRACE ();
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if (pdata->format != 32)
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{
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fprintf(stderr, "Atom list is expected to be formatted as an array of 32bit values.\n");
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return None;
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}
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for (i = 0, step = pdata->format >> 3; i < pdata->length; i += step)
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{
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a = (Atom)*(uint32_t *)(pdata->data + i);
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if (a == atoms->image_png)
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{
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png = True;
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}
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else if (a == atoms->image_jpeg)
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{
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jpeg = True;
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}
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else if (a == atoms->utf8_string)
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{
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utf8 = True;
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}
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else if (a == atoms->string)
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{
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string = True;
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}
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else
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{
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char *type = XGetAtomName(xpbproxy_dpy, a);
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if (type)
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{
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DB("Unhandled X11 mime type: %s", type);
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XFree(type);
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}
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}
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}
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/*We prefer PNG over strings, and UTF8 over a Latin-1 string.*/
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if (png)
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return atoms->image_png;
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if (jpeg)
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return atoms->image_jpeg;
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if (utf8)
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return atoms->utf8_string;
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if (string)
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return atoms->string;
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/* This is evidently something we don't know how to handle.*/
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return None;
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}
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/* Return True if this is an INCR-style transfer. */
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- (Bool) is_incr_type:(XSelectionEvent *)e
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{
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Atom seltype;
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int format;
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unsigned long numitems = 0UL, bytesleft = 0UL;
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unsigned char *chunk;
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TRACE ();
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if (Success != XGetWindowProperty (xpbproxy_dpy, e->requestor, e->property,
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/*offset*/ 0L, /*length*/ 4UL,
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/*Delete*/ False,
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AnyPropertyType, &seltype, &format,
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&numitems, &bytesleft, &chunk))
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{
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return False;
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}
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if(chunk)
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XFree(chunk);
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return (seltype == atoms->incr) ? True : False;
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}
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/*
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* This should be called after a selection has been copied,
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* or when the selection is unfinished before a transfer completes.
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*/
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- (void) release_pending
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{
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TRACE ();
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free_propdata (&pending.propdata);
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pending.requestor = None;
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pending.selection = None;
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}
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/* Return True if an error occurs during an append.*/
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/* Return False if the append succeeds. */
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- (Bool) append_to_pending:(struct propdata *)pdata requestor:(Window)requestor
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{
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unsigned char *newdata;
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size_t newlength;
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TRACE ();
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if (requestor != pending.requestor)
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{
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[self release_pending];
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pending.requestor = requestor;
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}
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newlength = pending.propdata.length + pdata->length;
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newdata = realloc(pending.propdata.data, newlength);
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if(NULL == newdata)
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{
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perror("realloc propdata");
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[self release_pending];
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return True;
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}
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memcpy(newdata + pending.propdata.length, pdata->data, pdata->length);
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pending.propdata.data = newdata;
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pending.propdata.length = newlength;
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return False;
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}
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/* Called when X11 becomes active (i.e. has key focus) */
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- (void) x_active:(Time)timestamp
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{
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static NSInteger changeCount;
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NSInteger countNow;
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NSPasteboard *pb;
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TRACE ();
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pb = [NSPasteboard generalPasteboard];
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if (nil == pb)
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return;
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countNow = [pb changeCount];
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if (countNow != changeCount)
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{
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DB ("changed pasteboard!\n");
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changeCount = countNow;
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if (pbproxy_prefs.pasteboard_to_primary)
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{
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XSetSelectionOwner (xpbproxy_dpy, atoms->primary, _selection_window, CurrentTime);
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}
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if (pbproxy_prefs.pasteboard_to_clipboard) {
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[self own_clipboard];
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}
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}
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#if 0
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/*gstaplin: we should perhaps investigate something like this branch above...*/
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if ([_pasteboard availableTypeFromArray: _known_types] != nil)
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{
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/* Pasteboard has data we should proxy; I think it makes
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sense to put it on both CLIPBOARD and PRIMARY */
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XSetSelectionOwner (xpbproxy_dpy, atoms->clipboard,
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_selection_window, timestamp);
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XSetSelectionOwner (xpbproxy_dpy, atoms->primary,
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_selection_window, timestamp);
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}
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#endif
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}
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/* Called when X11 loses key focus */
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- (void) x_inactive:(Time)timestamp
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{
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TRACE ();
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}
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/* This requests the TARGETS list from the PRIMARY selection owner. */
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- (void) x_copy_request_targets
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{
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TRACE ();
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request_atom = atoms->targets;
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XConvertSelection (xpbproxy_dpy, atoms->primary, atoms->targets,
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atoms->primary, _selection_window, CurrentTime);
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}
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/* Called when the Edit/Copy item on the main X11 menubar is selected
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* and no appkit window claims it. */
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- (void) x_copy:(Time)timestamp
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{
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Window w;
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TRACE ();
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w = XGetSelectionOwner (xpbproxy_dpy, atoms->primary);
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if (None != w)
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{
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++pending_copy;
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if (1 == pending_copy) {
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/*
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* There are no other copy operations in progress, so we
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* can proceed safely. Otherwise the copy_completed method
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* will see that the pending_copy is > 1, and do another copy.
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*/
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[self x_copy_request_targets];
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}
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}
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}
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/* Set pbproxy as owner of the SELECTION_MANAGER selection.
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* This prevents tools like xclipboard from causing havoc.
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* Returns TRUE on success
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*/
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- (BOOL) set_clipboard_manager_status:(BOOL)value
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{
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TRACE ();
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Window owner = XGetSelectionOwner (xpbproxy_dpy, atoms->clipboard_manager);
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if(value) {
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if(owner == _selection_window)
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return TRUE;
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if(owner != None) {
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fprintf (stderr, "A clipboard manager using window 0x%lx "
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"already owns the clipboard selection. "
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"pbproxy will not sync clipboard to pasteboard.\n", owner);
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return FALSE;
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}
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XSetSelectionOwner(xpbproxy_dpy, atoms->clipboard_manager, _selection_window, CurrentTime);
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return (_selection_window == XGetSelectionOwner(xpbproxy_dpy, atoms->clipboard_manager));
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} else {
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if(owner != _selection_window)
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return TRUE;
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XSetSelectionOwner(xpbproxy_dpy, atoms->clipboard_manager, None, CurrentTime);
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return(None == XGetSelectionOwner(xpbproxy_dpy, atoms->clipboard_manager));
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}
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return FALSE;
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}
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/*
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* This occurs when we previously owned a selection,
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* and then lost it from another client.
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*/
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- (void) clear_event:(XSelectionClearEvent *)e
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{
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TRACE ();
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DB ("e->selection %s\n", XGetAtomName (xpbproxy_dpy, e->selection));
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if(e->selection == atoms->clipboard) {
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/*
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* We lost ownership of the CLIPBOARD.
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*/
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++pending_clipboard;
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if (1 == pending_clipboard) {
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/* Claim the clipboard contents from the new owner. */
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[self claim_clipboard];
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}
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} else if(e->selection == atoms->clipboard_manager) {
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if(pbproxy_prefs.clipboard_to_pasteboard) {
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/* Another CLIPBOARD_MANAGER has set itself as owner. Disable syncing
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* to avoid a race.
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*/
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fprintf(stderr, "Another clipboard manager was started! "
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"xpbproxy is disabling syncing with clipboard.\n");
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pbproxy_prefs.clipboard_to_pasteboard = NO;
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}
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}
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}
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/*
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* We greedily acquire the clipboard after it changes, and on startup.
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*/
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- (void) claim_clipboard
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{
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Window owner;
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TRACE ();
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if (!pbproxy_prefs.clipboard_to_pasteboard)
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return;
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owner = XGetSelectionOwner (xpbproxy_dpy, atoms->clipboard);
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if (None == owner) {
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/*
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* The owner probably died or we are just starting up pbproxy.
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* Set pbproxy's _selection_window as the owner, and continue.
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*/
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DB ("No clipboard owner.\n");
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[self copy_completed:atoms->clipboard];
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return;
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} else if (owner == _selection_window) {
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[self copy_completed:atoms->clipboard];
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return;
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}
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DB ("requesting targets\n");
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request_atom = atoms->targets;
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XConvertSelection (xpbproxy_dpy, atoms->clipboard, atoms->targets,
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atoms->clipboard, _selection_window, CurrentTime);
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XFlush (xpbproxy_dpy);
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/* Now we will get a SelectionNotify event in the future. */
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}
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/* Greedily acquire the clipboard. */
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- (void) own_clipboard
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{
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TRACE ();
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/* We should perhaps have a boundary limit on the number of iterations... */
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do
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{
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XSetSelectionOwner (xpbproxy_dpy, atoms->clipboard, _selection_window,
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CurrentTime);
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} while (_selection_window != XGetSelectionOwner (xpbproxy_dpy,
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atoms->clipboard));
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}
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- (void) init_reply:(XEvent *)reply request:(XSelectionRequestEvent *)e
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{
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reply->xselection.type = SelectionNotify;
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reply->xselection.selection = e->selection;
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reply->xselection.target = e->target;
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reply->xselection.requestor = e->requestor;
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reply->xselection.time = e->time;
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reply->xselection.property = None;
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}
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- (void) send_reply:(XEvent *)reply
|
|
{
|
|
/*
|
|
* We are supposed to use an empty event mask, and not propagate
|
|
* the event, according to the ICCCM.
|
|
*/
|
|
DB ("reply->xselection.requestor 0x%lx\n", reply->xselection.requestor);
|
|
|
|
XSendEvent (xpbproxy_dpy, reply->xselection.requestor, False, 0, reply);
|
|
XFlush (xpbproxy_dpy);
|
|
}
|
|
|
|
/*
|
|
* This responds to a TARGETS request.
|
|
* The result is a list of a ATOMs that correspond to the types available
|
|
* for a selection.
|
|
* For instance an application might provide a UTF8_STRING and a STRING
|
|
* (in Latin-1 encoding). The requestor can then make the choice based on
|
|
* the list.
|
|
*/
|
|
- (void) send_targets:(XSelectionRequestEvent *)e pasteboard:(NSPasteboard *)pb
|
|
{
|
|
XEvent reply;
|
|
NSArray *pbtypes;
|
|
|
|
[self init_reply:&reply request:e];
|
|
|
|
pbtypes = [pb types];
|
|
if (pbtypes)
|
|
{
|
|
long list[7]; /* Don't forget to increase this if we handle more types! */
|
|
long count = 0;
|
|
|
|
/*
|
|
* I'm not sure if this is needed, but some toolkits/clients list
|
|
* TARGETS in response to targets.
|
|
*/
|
|
list[count] = atoms->targets;
|
|
++count;
|
|
|
|
if ([pbtypes containsObject:NSStringPboardType])
|
|
{
|
|
/* We have a string type that we can convert to UTF8, or Latin-1... */
|
|
DB ("NSStringPboardType\n");
|
|
list[count] = atoms->utf8_string;
|
|
++count;
|
|
list[count] = atoms->string;
|
|
++count;
|
|
list[count] = atoms->compound_text;
|
|
++count;
|
|
}
|
|
|
|
/* TODO add the NSPICTPboardType back again, once we have conversion
|
|
* functionality in send_image.
|
|
*/
|
|
|
|
if ([pbtypes containsObject:NSPICTPboardType]
|
|
|| [pbtypes containsObject:NSTIFFPboardType])
|
|
{
|
|
/* We can convert a TIFF to a PNG or JPEG. */
|
|
DB ("NSTIFFPboardType\n");
|
|
list[count] = atoms->image_png;
|
|
++count;
|
|
list[count] = atoms->image_jpeg;
|
|
++count;
|
|
}
|
|
|
|
if (count)
|
|
{
|
|
/* We have a list of ATOMs to send. */
|
|
XChangeProperty (xpbproxy_dpy, e->requestor, e->property, atoms->atom, 32,
|
|
PropModeReplace, (unsigned char *) list, count);
|
|
|
|
reply.xselection.property = e->property;
|
|
}
|
|
}
|
|
|
|
[self send_reply:&reply];
|
|
}
|
|
|
|
|
|
- (void) send_string:(XSelectionRequestEvent *)e utf8:(BOOL)utf8 pasteboard:(NSPasteboard *)pb
|
|
{
|
|
XEvent reply;
|
|
NSArray *pbtypes;
|
|
NSString *data;
|
|
const char *bytes;
|
|
NSUInteger length;
|
|
|
|
TRACE ();
|
|
|
|
[self init_reply:&reply request:e];
|
|
|
|
pbtypes = [pb types];
|
|
|
|
if (![pbtypes containsObject:NSStringPboardType])
|
|
{
|
|
[self send_reply:&reply];
|
|
return;
|
|
}
|
|
|
|
DB ("pbtypes retainCount after containsObject: %u\n", [pbtypes retainCount]);
|
|
|
|
data = [pb stringForType:NSStringPboardType];
|
|
|
|
if (nil == data)
|
|
{
|
|
[self send_reply:&reply];
|
|
return;
|
|
}
|
|
|
|
if (utf8)
|
|
{
|
|
bytes = [data UTF8String];
|
|
/*
|
|
* We don't want the UTF-8 string length here.
|
|
* We want the length in bytes.
|
|
*/
|
|
length = strlen (bytes);
|
|
|
|
if (length < 50) {
|
|
DB ("UTF-8: %s\n", bytes);
|
|
DB ("UTF-8 length: %u\n", length);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
DB ("Latin-1\n");
|
|
bytes = [data cStringUsingEncoding:NSISOLatin1StringEncoding];
|
|
/*WARNING: bytes is not NUL-terminated. */
|
|
length = [data lengthOfBytesUsingEncoding:NSISOLatin1StringEncoding];
|
|
}
|
|
|
|
DB ("e->target %s\n", XGetAtomName (xpbproxy_dpy, e->target));
|
|
|
|
XChangeProperty (xpbproxy_dpy, e->requestor, e->property, e->target,
|
|
8, PropModeReplace, (unsigned char *) bytes, length);
|
|
|
|
reply.xselection.property = e->property;
|
|
|
|
[self send_reply:&reply];
|
|
}
|
|
|
|
- (void) send_compound_text:(XSelectionRequestEvent *)e pasteboard:(NSPasteboard *)pb
|
|
{
|
|
XEvent reply;
|
|
NSArray *pbtypes;
|
|
|
|
TRACE ();
|
|
|
|
[self init_reply:&reply request:e];
|
|
|
|
pbtypes = [pb types];
|
|
|
|
if ([pbtypes containsObject: NSStringPboardType])
|
|
{
|
|
NSString *data = [pb stringForType:NSStringPboardType];
|
|
if (nil != data)
|
|
{
|
|
/*
|
|
* Cast to (void *) to avoid a const warning.
|
|
* AFAIK Xutf8TextListToTextProperty does not modify the input memory.
|
|
*/
|
|
void *utf8 = (void *)[data UTF8String];
|
|
char *list[] = { utf8, NULL };
|
|
XTextProperty textprop;
|
|
|
|
textprop.value = NULL;
|
|
|
|
if (Success == Xutf8TextListToTextProperty (xpbproxy_dpy, list, 1,
|
|
XCompoundTextStyle,
|
|
&textprop))
|
|
{
|
|
|
|
if (8 != textprop.format)
|
|
DB ("textprop.format is unexpectedly not 8 - it's %d instead\n",
|
|
textprop.format);
|
|
|
|
XChangeProperty (xpbproxy_dpy, e->requestor, e->property,
|
|
atoms->compound_text, textprop.format,
|
|
PropModeReplace, textprop.value,
|
|
textprop.nitems);
|
|
|
|
reply.xselection.property = e->property;
|
|
}
|
|
|
|
if (textprop.value)
|
|
XFree (textprop.value);
|
|
|
|
}
|
|
}
|
|
|
|
[self send_reply:&reply];
|
|
}
|
|
|
|
/* Finding a test application that uses MULTIPLE has proven to be difficult. */
|
|
- (void) send_multiple:(XSelectionRequestEvent *)e
|
|
{
|
|
XEvent reply;
|
|
|
|
TRACE ();
|
|
|
|
[self init_reply:&reply request:e];
|
|
|
|
if (None != e->property)
|
|
{
|
|
|
|
}
|
|
|
|
[self send_reply:&reply];
|
|
}
|
|
|
|
/* Return nil if an error occured. */
|
|
/* DO NOT retain the encdata for longer than the length of an event response.
|
|
* The autorelease pool will reuse/free it.
|
|
*/
|
|
- (NSData *) encode_image_data:(NSData *)data type:(NSBitmapImageFileType)enctype
|
|
{
|
|
NSBitmapImageRep *bmimage = nil;
|
|
NSData *encdata = nil;
|
|
NSDictionary *dict = nil;
|
|
|
|
bmimage = [[NSBitmapImageRep alloc] initWithData:data];
|
|
|
|
if (nil == bmimage)
|
|
return nil;
|
|
|
|
dict = [[NSDictionary alloc] init];
|
|
encdata = [bmimage representationUsingType:enctype properties:dict];
|
|
|
|
if (nil == encdata)
|
|
{
|
|
[dict autorelease];
|
|
[bmimage autorelease];
|
|
return nil;
|
|
}
|
|
|
|
[dict autorelease];
|
|
[bmimage autorelease];
|
|
|
|
return encdata;
|
|
}
|
|
|
|
/* Return YES when an error has occured when trying to send the PICT. */
|
|
/* The caller should send a default reponse with a property of None when an error occurs. */
|
|
- (BOOL) send_image_pict_reply:(XSelectionRequestEvent *)e
|
|
pasteboard:(NSPasteboard *)pb
|
|
type:(NSBitmapImageFileType)imagetype
|
|
{
|
|
XEvent reply;
|
|
NSImage *img = nil;
|
|
NSData *data = nil, *encdata = nil;
|
|
NSUInteger length;
|
|
const void *bytes = NULL;
|
|
|
|
img = [[NSImage alloc] initWithPasteboard:pb];
|
|
|
|
if (nil == img)
|
|
{
|
|
return YES;
|
|
}
|
|
|
|
data = [img TIFFRepresentation];
|
|
|
|
if (nil == data)
|
|
{
|
|
[img autorelease];
|
|
fprintf(stderr, "unable to convert PICT to TIFF!\n");
|
|
return YES;
|
|
}
|
|
|
|
encdata = [self encode_image_data:data type:imagetype];
|
|
if(nil == encdata)
|
|
{
|
|
[img autorelease];
|
|
return YES;
|
|
}
|
|
|
|
[self init_reply:&reply request:e];
|
|
|
|
length = [encdata length];
|
|
bytes = [encdata bytes];
|
|
|
|
XChangeProperty (xpbproxy_dpy, e->requestor, e->property, e->target,
|
|
8, PropModeReplace, bytes, length);
|
|
reply.xselection.property = e->property;
|
|
|
|
[self send_reply:&reply];
|
|
|
|
[img autorelease];
|
|
|
|
return NO; /*no error*/
|
|
}
|
|
|
|
/* Return YES if an error occured. */
|
|
/* The caller should send a reply with a property of None when an error occurs. */
|
|
- (BOOL) send_image_tiff_reply:(XSelectionRequestEvent *)e
|
|
pasteboard:(NSPasteboard *)pb
|
|
type:(NSBitmapImageFileType)imagetype
|
|
{
|
|
XEvent reply;
|
|
NSData *data = nil;
|
|
NSData *encdata = nil;
|
|
NSUInteger length;
|
|
const void *bytes = NULL;
|
|
|
|
data = [pb dataForType:NSTIFFPboardType];
|
|
|
|
if (nil == data)
|
|
return YES;
|
|
|
|
encdata = [self encode_image_data:data type:imagetype];
|
|
|
|
if(nil == encdata)
|
|
return YES;
|
|
|
|
[self init_reply:&reply request:e];
|
|
|
|
length = [encdata length];
|
|
bytes = [encdata bytes];
|
|
|
|
XChangeProperty (xpbproxy_dpy, e->requestor, e->property, e->target,
|
|
8, PropModeReplace, bytes, length);
|
|
reply.xselection.property = e->property;
|
|
|
|
[self send_reply:&reply];
|
|
|
|
return NO; /*no error*/
|
|
}
|
|
|
|
- (void) send_image:(XSelectionRequestEvent *)e pasteboard:(NSPasteboard *)pb
|
|
{
|
|
NSArray *pbtypes = nil;
|
|
NSBitmapImageFileType imagetype = NSPNGFileType;
|
|
|
|
TRACE ();
|
|
|
|
if (e->target == atoms->image_png)
|
|
imagetype = NSPNGFileType;
|
|
else if (e->target == atoms->image_jpeg)
|
|
imagetype = NSJPEGFileType;
|
|
else
|
|
{
|
|
fprintf(stderr, "internal failure in xpbproxy! imagetype being sent isn't PNG or JPEG.\n");
|
|
}
|
|
|
|
pbtypes = [pb types];
|
|
|
|
if (pbtypes)
|
|
{
|
|
if ([pbtypes containsObject:NSTIFFPboardType])
|
|
{
|
|
if (NO == [self send_image_tiff_reply:e pasteboard:pb type:imagetype])
|
|
return;
|
|
}
|
|
else if ([pbtypes containsObject:NSPICTPboardType])
|
|
{
|
|
if (NO == [self send_image_pict_reply:e pasteboard:pb type:imagetype])
|
|
return;
|
|
|
|
/* Fall through intentionally to the send_none: */
|
|
}
|
|
}
|
|
|
|
[self send_none:e];
|
|
}
|
|
|
|
- (void)send_none:(XSelectionRequestEvent *)e
|
|
{
|
|
XEvent reply;
|
|
|
|
TRACE ();
|
|
|
|
[self init_reply:&reply request:e];
|
|
[self send_reply:&reply];
|
|
}
|
|
|
|
|
|
/* Another client requested the data or targets of data available from the clipboard. */
|
|
- (void)request_event:(XSelectionRequestEvent *)e
|
|
{
|
|
NSPasteboard *pb;
|
|
|
|
TRACE ();
|
|
|
|
/* TODO We should also keep track of the time of the selection, and
|
|
* according to the ICCCM "refuse the request" if the event timestamp
|
|
* is before we owned it.
|
|
* What should we base the time on? How can we get the current time just
|
|
* before an XSetSelectionOwner? Is it the server's time, or the clients?
|
|
* According to the XSelectionRequestEvent manual page, the Time value
|
|
* may be set to CurrentTime or a time, so that makes it a bit different.
|
|
* Perhaps we should just punt and ignore races.
|
|
*/
|
|
|
|
/*TODO we need a COMPOUND_TEXT test app*/
|
|
/*TODO we need a MULTIPLE test app*/
|
|
|
|
pb = [NSPasteboard generalPasteboard];
|
|
if (nil == pb)
|
|
{
|
|
[self send_none:e];
|
|
return;
|
|
}
|
|
|
|
|
|
if (None != e->target)
|
|
DB ("e->target %s\n", XGetAtomName (xpbproxy_dpy, e->target));
|
|
|
|
if (e->target == atoms->targets)
|
|
{
|
|
/* The paste requestor wants to know what TARGETS we support. */
|
|
[self send_targets:e pasteboard:pb];
|
|
}
|
|
else if (e->target == atoms->multiple)
|
|
{
|
|
/*
|
|
* This isn't finished, and may never be, unless I can find
|
|
* a good test app.
|
|
*/
|
|
[self send_multiple:e];
|
|
}
|
|
else if (e->target == atoms->utf8_string)
|
|
{
|
|
[self send_string:e utf8:YES pasteboard:pb];
|
|
}
|
|
else if (e->target == atoms->string)
|
|
{
|
|
[self send_string:e utf8:NO pasteboard:pb];
|
|
}
|
|
else if (e->target == atoms->compound_text)
|
|
{
|
|
[self send_compound_text:e pasteboard:pb];
|
|
}
|
|
else if (e->target == atoms->multiple)
|
|
{
|
|
[self send_multiple:e];
|
|
}
|
|
else if (e->target == atoms->image_png || e->target == atoms->image_jpeg)
|
|
{
|
|
[self send_image:e pasteboard:pb];
|
|
}
|
|
else
|
|
{
|
|
[self send_none:e];
|
|
}
|
|
}
|
|
|
|
/* This handles the events resulting from an XConvertSelection request. */
|
|
- (void) notify_event:(XSelectionEvent *)e
|
|
{
|
|
Atom type;
|
|
struct propdata pdata;
|
|
|
|
TRACE ();
|
|
|
|
[self release_pending];
|
|
|
|
if (None == e->property) {
|
|
DB ("e->property is None.\n");
|
|
[self copy_completed:e->selection];
|
|
/* Nothing is selected. */
|
|
return;
|
|
}
|
|
|
|
#if 0
|
|
printf ("e->selection %s\n", XGetAtomName (xpbproxy_dpy, e->selection));
|
|
printf ("e->property %s\n", XGetAtomName (xpbproxy_dpy, e->property));
|
|
#endif
|
|
|
|
if ([self is_incr_type:e])
|
|
{
|
|
/*
|
|
* This is an INCR-style transfer, which means that we
|
|
* will get the data after a series of PropertyNotify events.
|
|
*/
|
|
DB ("is INCR\n");
|
|
|
|
if (get_property (e->requestor, e->property, &pdata, /*Delete*/ True, &type))
|
|
{
|
|
/*
|
|
* An error occured, so we should invoke the copy_completed:, but
|
|
* not handle_selection:type:propdata:
|
|
*/
|
|
[self copy_completed:e->selection];
|
|
return;
|
|
}
|
|
|
|
free_propdata (&pdata);
|
|
|
|
pending.requestor = e->requestor;
|
|
pending.selection = e->selection;
|
|
|
|
DB ("set pending.requestor to 0x%lx\n", pending.requestor);
|
|
}
|
|
else
|
|
{
|
|
if (get_property (e->requestor, e->property, &pdata, /*Delete*/ True, &type))
|
|
{
|
|
[self copy_completed:e->selection];
|
|
return;
|
|
}
|
|
|
|
/* We have the complete selection data.*/
|
|
[self handle_selection:e->selection type:type propdata:&pdata];
|
|
|
|
DB ("handled selection with the first notify_event\n");
|
|
}
|
|
}
|
|
|
|
/* This is used for INCR transfers. See the ICCCM for the details. */
|
|
/* This is used to retrieve PRIMARY and CLIPBOARD selections. */
|
|
- (void) property_event:(XPropertyEvent *)e
|
|
{
|
|
struct propdata pdata;
|
|
Atom type;
|
|
|
|
TRACE ();
|
|
|
|
if (None != e->atom)
|
|
{
|
|
#ifdef DEBUG
|
|
char *name = XGetAtomName (xpbproxy_dpy, e->atom);
|
|
|
|
if (name)
|
|
{
|
|
DB ("e->atom %s\n", name);
|
|
XFree(name);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
if (None != pending.requestor && PropertyNewValue == e->state)
|
|
{
|
|
DB ("pending.requestor 0x%lx\n", pending.requestor);
|
|
|
|
if (get_property (e->window, e->atom, &pdata, /*Delete*/ True, &type))
|
|
{
|
|
[self copy_completed:pending.selection];
|
|
[self release_pending];
|
|
return;
|
|
}
|
|
|
|
if (0 == pdata.length)
|
|
{
|
|
/*
|
|
* We completed the transfer.
|
|
* handle_selection will call copy_completed: for us.
|
|
*/
|
|
[self handle_selection:pending.selection type:type propdata:&pending.propdata];
|
|
free_propdata(&pdata);
|
|
pending.propdata = null_propdata;
|
|
pending.requestor = None;
|
|
pending.selection = None;
|
|
}
|
|
else
|
|
{
|
|
[self append_to_pending:&pdata requestor:e->window];
|
|
free_propdata (&pdata);
|
|
}
|
|
}
|
|
}
|
|
|
|
- (void) xfixes_selection_notify:(XFixesSelectionNotifyEvent *)e {
|
|
if(!pbproxy_prefs.active)
|
|
return;
|
|
|
|
switch(e->subtype) {
|
|
case XFixesSetSelectionOwnerNotify:
|
|
if(e->selection == atoms->primary && pbproxy_prefs.primary_on_grab)
|
|
[self x_copy:e->timestamp];
|
|
break;
|
|
|
|
case XFixesSelectionWindowDestroyNotify:
|
|
case XFixesSelectionClientCloseNotify:
|
|
default:
|
|
fprintf(stderr, "Unhandled XFixesSelectionNotifyEvent: subtype=%d\n", e->subtype);
|
|
break;
|
|
}
|
|
}
|
|
|
|
- (void) handle_targets: (Atom)selection propdata:(struct propdata *)pdata
|
|
{
|
|
/* Find a type we can handle and prefer from the list of ATOMs. */
|
|
Atom preferred;
|
|
char *name;
|
|
|
|
TRACE ();
|
|
|
|
preferred = [self find_preferred:pdata];
|
|
|
|
if (None == preferred)
|
|
{
|
|
/*
|
|
* This isn't required by the ICCCM, but some apps apparently
|
|
* don't respond to TARGETS properly.
|
|
*/
|
|
preferred = atoms->string;
|
|
}
|
|
|
|
(void)name; /* Avoid a warning with non-debug compiles. */
|
|
#ifdef DEBUG
|
|
name = XGetAtomName (xpbproxy_dpy, preferred);
|
|
|
|
if (name)
|
|
{
|
|
DB ("requesting %s\n", name);
|
|
}
|
|
#endif
|
|
request_atom = preferred;
|
|
XConvertSelection (xpbproxy_dpy, selection, preferred, selection,
|
|
_selection_window, CurrentTime);
|
|
}
|
|
|
|
/* This handles the image type of selection (typically in CLIPBOARD). */
|
|
/* We convert to a TIFF, so that other applications can paste more easily. */
|
|
- (void) handle_image: (struct propdata *)pdata pasteboard:(NSPasteboard *)pb
|
|
{
|
|
NSArray *pbtypes;
|
|
NSUInteger length;
|
|
NSData *data, *tiff;
|
|
NSBitmapImageRep *bmimage;
|
|
|
|
TRACE ();
|
|
|
|
length = pdata->length;
|
|
data = [[NSData alloc] initWithBytes:pdata->data length:length];
|
|
|
|
if (nil == data)
|
|
{
|
|
DB ("unable to create NSData object!\n");
|
|
return;
|
|
}
|
|
|
|
DB ("data retainCount before NSBitmapImageRep initWithData: %u\n",
|
|
[data retainCount]);
|
|
|
|
bmimage = [[NSBitmapImageRep alloc] initWithData:data];
|
|
|
|
if (nil == bmimage)
|
|
{
|
|
[data autorelease];
|
|
DB ("unable to create NSBitmapImageRep!\n");
|
|
return;
|
|
}
|
|
|
|
DB ("data retainCount after NSBitmapImageRep initWithData: %u\n",
|
|
[data retainCount]);
|
|
|
|
@try
|
|
{
|
|
tiff = [bmimage TIFFRepresentation];
|
|
}
|
|
|
|
@catch (NSException *e)
|
|
{
|
|
DB ("NSTIFFException!\n");
|
|
[data autorelease];
|
|
[bmimage autorelease];
|
|
return;
|
|
}
|
|
|
|
DB ("bmimage retainCount after TIFFRepresentation %u\n", [bmimage retainCount]);
|
|
|
|
pbtypes = [NSArray arrayWithObjects:NSTIFFPboardType, nil];
|
|
|
|
if (nil == pbtypes)
|
|
{
|
|
[data autorelease];
|
|
[bmimage autorelease];
|
|
return;
|
|
}
|
|
|
|
[pb declareTypes:pbtypes owner:nil];
|
|
if (YES != [pb setData:tiff forType:NSTIFFPboardType])
|
|
{
|
|
DB ("writing pasteboard data failed!\n");
|
|
}
|
|
|
|
[data autorelease];
|
|
|
|
DB ("bmimage retainCount before release %u\n", [bmimage retainCount]);
|
|
[bmimage autorelease];
|
|
}
|
|
|
|
/* This handles the UTF8_STRING type of selection. */
|
|
- (void) handle_utf8_string:(struct propdata *)pdata pasteboard:(NSPasteboard *)pb
|
|
{
|
|
NSString *string;
|
|
NSArray *pbtypes;
|
|
|
|
TRACE ();
|
|
|
|
string = [[NSString alloc] initWithBytes:pdata->data length:pdata->length encoding:NSUTF8StringEncoding];
|
|
|
|
if (nil == string)
|
|
return;
|
|
|
|
pbtypes = [NSArray arrayWithObjects:NSStringPboardType, nil];
|
|
|
|
if (nil == pbtypes)
|
|
{
|
|
[string autorelease];
|
|
return;
|
|
}
|
|
|
|
[pb declareTypes:pbtypes owner:nil];
|
|
|
|
if (YES != [pb setString:string forType:NSStringPboardType]) {
|
|
fprintf(stderr, "pasteboard setString:forType: failed!\n");
|
|
}
|
|
[string autorelease];
|
|
DB ("done handling utf8 string\n");
|
|
}
|
|
|
|
/* This handles the STRING type, which should be in Latin-1. */
|
|
- (void) handle_string: (struct propdata *)pdata pasteboard:(NSPasteboard *)pb
|
|
{
|
|
NSString *string;
|
|
NSArray *pbtypes;
|
|
|
|
TRACE ();
|
|
|
|
string = [[NSString alloc] initWithBytes:pdata->data length:pdata->length encoding:NSISOLatin1StringEncoding];
|
|
|
|
if (nil == string)
|
|
return;
|
|
|
|
pbtypes = [NSArray arrayWithObjects:NSStringPboardType, nil];
|
|
|
|
if (nil == pbtypes)
|
|
{
|
|
[string autorelease];
|
|
return;
|
|
}
|
|
|
|
[pb declareTypes:pbtypes owner:nil];
|
|
if (YES != [pb setString:string forType:NSStringPboardType]) {
|
|
fprintf(stderr, "pasteboard setString:forType failed in handle_string!\n");
|
|
}
|
|
[string autorelease];
|
|
}
|
|
|
|
/* This is called when the selection is completely retrieved from another client. */
|
|
/* Warning: this frees the propdata. */
|
|
- (void) handle_selection:(Atom)selection type:(Atom)type propdata:(struct propdata *)pdata
|
|
{
|
|
NSPasteboard *pb;
|
|
|
|
TRACE ();
|
|
|
|
pb = [NSPasteboard generalPasteboard];
|
|
|
|
if (nil == pb)
|
|
{
|
|
[self copy_completed:selection];
|
|
free_propdata (pdata);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Some apps it seems set the type to TARGETS instead of ATOM, such as Eterm.
|
|
* These aren't ICCCM compliant apps, but we need these to work...
|
|
*/
|
|
if (request_atom == atoms->targets
|
|
&& (type == atoms->atom || type == atoms->targets))
|
|
{
|
|
[self handle_targets:selection propdata:pdata];
|
|
free_propdata(pdata);
|
|
return;
|
|
}
|
|
else if (type == atoms->image_png)
|
|
{
|
|
[self handle_image:pdata pasteboard:pb];
|
|
}
|
|
else if (type == atoms->image_jpeg)
|
|
{
|
|
[self handle_image:pdata pasteboard:pb];
|
|
}
|
|
else if (type == atoms->utf8_string)
|
|
{
|
|
[self handle_utf8_string:pdata pasteboard:pb];
|
|
}
|
|
else if (type == atoms->string)
|
|
{
|
|
[self handle_string:pdata pasteboard:pb];
|
|
}
|
|
|
|
free_propdata(pdata);
|
|
|
|
[self copy_completed:selection];
|
|
}
|
|
|
|
|
|
- (void) copy_completed:(Atom)selection
|
|
{
|
|
TRACE ();
|
|
char *name;
|
|
|
|
(void)name; /* Avoid warning with non-debug compiles. */
|
|
#ifdef DEBUG
|
|
name = XGetAtomName (xpbproxy_dpy, selection);
|
|
if (name)
|
|
{
|
|
DB ("copy_completed: %s\n", name);
|
|
XFree (name);
|
|
}
|
|
#endif
|
|
|
|
if (selection == atoms->primary && pending_copy > 0)
|
|
{
|
|
--pending_copy;
|
|
if (pending_copy > 0)
|
|
{
|
|
/* Copy PRIMARY again. */
|
|
[self x_copy_request_targets];
|
|
return;
|
|
}
|
|
}
|
|
else if (selection == atoms->clipboard && pending_clipboard > 0)
|
|
{
|
|
--pending_clipboard;
|
|
if (pending_clipboard > 0)
|
|
{
|
|
/* Copy CLIPBOARD. */
|
|
[self claim_clipboard];
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
/* We got the final data. Now set pbproxy as the owner. */
|
|
[self own_clipboard];
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* We had 1 or more primary in progress, and the clipboard arrived
|
|
* while we were busy.
|
|
*/
|
|
if (pending_clipboard > 0)
|
|
{
|
|
[self claim_clipboard];
|
|
}
|
|
}
|
|
|
|
- (void) reload_preferences
|
|
{
|
|
/*
|
|
* It's uncertain how we could handle the synchronization failing, so cast to void.
|
|
* The prefs_get_bool should fall back to defaults if the org.x.X11 plist doesn't exist or is invalid.
|
|
*/
|
|
(void)CFPreferencesAppSynchronize(app_prefs_domain_cfstr);
|
|
#ifdef STANDALONE_XPBPROXY
|
|
if(xpbproxy_is_standalone)
|
|
pbproxy_prefs.active = YES;
|
|
else
|
|
#endif
|
|
pbproxy_prefs.active = prefs_get_bool(CFSTR("sync_pasteboard"), pbproxy_prefs.active);
|
|
pbproxy_prefs.primary_on_grab = prefs_get_bool(CFSTR("sync_primary_on_select"), pbproxy_prefs.primary_on_grab);
|
|
pbproxy_prefs.clipboard_to_pasteboard = prefs_get_bool(CFSTR("sync_clipboard_to_pasteboard"), pbproxy_prefs.clipboard_to_pasteboard);
|
|
pbproxy_prefs.pasteboard_to_primary = prefs_get_bool(CFSTR("sync_pasteboard_to_primary"), pbproxy_prefs.pasteboard_to_primary);
|
|
pbproxy_prefs.pasteboard_to_clipboard = prefs_get_bool(CFSTR("sync_pasteboard_to_clipboard"), pbproxy_prefs.pasteboard_to_clipboard);
|
|
|
|
/* This is used for debugging. */
|
|
//dump_prefs(stdout);
|
|
|
|
if(pbproxy_prefs.active && pbproxy_prefs.primary_on_grab && !xpbproxy_have_xfixes) {
|
|
fprintf(stderr, "Disabling sync_primary_on_select functionality due to missing XFixes extension.\n");
|
|
pbproxy_prefs.primary_on_grab = NO;
|
|
}
|
|
|
|
/* Claim or release the CLIPBOARD_MANAGER atom */
|
|
if(![self set_clipboard_manager_status:(pbproxy_prefs.active && pbproxy_prefs.clipboard_to_pasteboard)])
|
|
pbproxy_prefs.clipboard_to_pasteboard = NO;
|
|
|
|
if(pbproxy_prefs.active && pbproxy_prefs.clipboard_to_pasteboard)
|
|
[self claim_clipboard];
|
|
}
|
|
|
|
- (BOOL) is_active
|
|
{
|
|
return pbproxy_prefs.active;
|
|
}
|
|
|
|
/* NSPasteboard-required methods */
|
|
|
|
- (void) paste:(id)sender
|
|
{
|
|
TRACE ();
|
|
}
|
|
|
|
- (void) pasteboard:(NSPasteboard *)pb provideDataForType:(NSString *)type
|
|
{
|
|
TRACE ();
|
|
}
|
|
|
|
- (void) pasteboardChangedOwner:(NSPasteboard *)pb
|
|
{
|
|
TRACE ();
|
|
|
|
/* Right now we don't care with this. */
|
|
}
|
|
|
|
/* Allocation */
|
|
|
|
- init
|
|
{
|
|
unsigned long pixel;
|
|
|
|
self = [super init];
|
|
if (self == nil)
|
|
return nil;
|
|
|
|
atoms->primary = XInternAtom (xpbproxy_dpy, "PRIMARY", False);
|
|
atoms->clipboard = XInternAtom (xpbproxy_dpy, "CLIPBOARD", False);
|
|
atoms->text = XInternAtom (xpbproxy_dpy, "TEXT", False);
|
|
atoms->utf8_string = XInternAtom (xpbproxy_dpy, "UTF8_STRING", False);
|
|
atoms->string = XInternAtom (xpbproxy_dpy, "STRING", False);
|
|
atoms->targets = XInternAtom (xpbproxy_dpy, "TARGETS", False);
|
|
atoms->multiple = XInternAtom (xpbproxy_dpy, "MULTIPLE", False);
|
|
atoms->cstring = XInternAtom (xpbproxy_dpy, "CSTRING", False);
|
|
atoms->image_png = XInternAtom (xpbproxy_dpy, "image/png", False);
|
|
atoms->image_jpeg = XInternAtom (xpbproxy_dpy, "image/jpeg", False);
|
|
atoms->incr = XInternAtom (xpbproxy_dpy, "INCR", False);
|
|
atoms->atom = XInternAtom (xpbproxy_dpy, "ATOM", False);
|
|
atoms->clipboard_manager = XInternAtom (xpbproxy_dpy, "CLIPBOARD_MANAGER", False);
|
|
atoms->compound_text = XInternAtom (xpbproxy_dpy, "COMPOUND_TEXT", False);
|
|
atoms->atom_pair = XInternAtom (xpbproxy_dpy, "ATOM_PAIR", False);
|
|
|
|
pixel = BlackPixel (xpbproxy_dpy, DefaultScreen (xpbproxy_dpy));
|
|
_selection_window = XCreateSimpleWindow (xpbproxy_dpy, DefaultRootWindow (xpbproxy_dpy),
|
|
0, 0, 1, 1, 0, pixel, pixel);
|
|
|
|
/* This is used to get PropertyNotify events when doing INCR transfers. */
|
|
XSelectInput (xpbproxy_dpy, _selection_window, PropertyChangeMask);
|
|
|
|
request_atom = None;
|
|
|
|
init_propdata (&pending.propdata);
|
|
pending.requestor = None;
|
|
pending.selection = None;
|
|
|
|
pending_copy = 0;
|
|
pending_clipboard = 0;
|
|
|
|
if(xpbproxy_have_xfixes)
|
|
XFixesSelectSelectionInput(xpbproxy_dpy, _selection_window, atoms->primary,
|
|
XFixesSetSelectionOwnerNotifyMask);
|
|
|
|
[self reload_preferences];
|
|
|
|
return self;
|
|
}
|
|
|
|
- (void) dealloc
|
|
{
|
|
if (None != _selection_window)
|
|
{
|
|
XDestroyWindow (xpbproxy_dpy, _selection_window);
|
|
_selection_window = None;
|
|
}
|
|
|
|
free_propdata (&pending.propdata);
|
|
|
|
[super dealloc];
|
|
}
|
|
|
|
@end
|