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/**************************************************************
* quartzPasteboard.c
*
* Aqua pasteboard <-> X cut buffer
* Greg Parker gparker@cs.stanford.edu March 8, 2001
**************************************************************/
/*
* Copyright (c) 2001 Greg Parker. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name(s) of the above copyright
* holders shall not be used in advertising or otherwise to promote the sale,
* use or other dealings in this Software without prior written authorization.
*/
#include "quartzPasteboard.h"
#include <X11/Xatom.h>
#include "windowstr.h"
#include "propertyst.h"
#include "scrnintstr.h"
#include "selection.h"
#include "globals.h"
extern Selection *CurrentSelections;
extern int NumCurrentSelections;
// Helper function to read the X11 cut buffer
// FIXME: What about multiple screens? Currently, this reads the first
// CUT_BUFFER0 from the first screen where the buffer content is a string.
// Returns a string on the heap that the caller must free.
// Returns NULL if there is no cut text or there is not enough memory.
static char * QuartzReadCutBuffer(void)
{
int i;
char *text = NULL;
for (i = 0; i < screenInfo.numScreens; i++) {
ScreenPtr pScreen = screenInfo.screens[i];
PropertyPtr pProp;
pProp = wUserProps (WindowTable[pScreen->myNum]);
while (pProp && pProp->propertyName != XA_CUT_BUFFER0) {
pProp = pProp->next;
}
if (! pProp) continue;
if (pProp->type != XA_STRING) continue;
if (pProp->format != 8) continue;
text = xalloc(1 + pProp->size);
if (! text) continue;
memcpy(text, pProp->data, pProp->size);
text[pProp->size] = '\0';
return text;
}
// didn't find any text
return NULL;
}
// Write X cut buffer to Mac OS X pasteboard
// Called by ProcessInputEvents() in response to request from X server thread.
void QuartzWritePasteboard(void)
{
char *text;
text = QuartzReadCutBuffer();
if (text) {
QuartzWriteCocoaPasteboard(text);
free(text);
}
}
#define strequal(a, b) (0 == strcmp((a), (b)))
// Read Mac OS X pasteboard into X cut buffer
// Called by ProcessInputEvents() in response to request from X server thread.
void QuartzReadPasteboard(void)
{
char *oldText = QuartzReadCutBuffer();
char *text = QuartzReadCocoaPasteboard();
// Compare text with current cut buffer contents.
// Change the buffer if both exist and are different
// OR if there is new text but no old text.
// Otherwise, don't clear the selection unnecessarily.
if ((text && oldText && !strequal(text, oldText)) ||
(text && !oldText)) {
int scrn, sel;
for (scrn = 0; scrn < screenInfo.numScreens; scrn++) {
ScreenPtr pScreen = screenInfo.screens[scrn];
// Set the cut buffers on each screen
// fixme really on each screen?
ChangeWindowProperty(WindowTable[pScreen->myNum], XA_CUT_BUFFER0,
XA_STRING, 8, PropModeReplace,
strlen(text), (pointer)text, TRUE);
}
// Undo any current X selection (similar to code in dispatch.c)
// FIXME: what about secondary selection?
// FIXME: only touch first XA_PRIMARY selection?
sel = 0;
while ((sel < NumCurrentSelections) &&
CurrentSelections[sel].selection != XA_PRIMARY)
sel++;
if (sel < NumCurrentSelections) {
// Notify client if necessary
if (CurrentSelections[sel].client) {
xEvent event;
event.u.u.type = SelectionClear;
event.u.selectionClear.time = GetTimeInMillis();
event.u.selectionClear.window = CurrentSelections[sel].window;
event.u.selectionClear.atom = CurrentSelections[sel].selection;
TryClientEvents(CurrentSelections[sel].client, &event, 1,
NoEventMask, NoEventMask /*CantBeFiltered*/,
NullGrab);
}
// Erase it
// FIXME: need to erase .selection too? dispatch.c doesn't
CurrentSelections[sel].pWin = NullWindow;
CurrentSelections[sel].window = None;
CurrentSelections[sel].client = NullClient;
}
}
if (text) free(text);
if (oldText) free(oldText);
}
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