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