/************************************************************** * 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. */ #ifdef HAVE_DIX_CONFIG_H #include <dix-config.h> #endif #include "misc.h" #include "inputstr.h" #include "quartzPasteboard.h" #include <X11/Xatom.h> #include "windowstr.h" #include "propertyst.h" #include "scrnintstr.h" #include "selection.h" #include "globals.h" // 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 rc, i; char *text = NULL; for (i = 0; i < screenInfo.numScreens; i++) { ScreenPtr pScreen = screenInfo.screens[i]; PropertyPtr pProp; rc = dixLookupProperty(&pProp, WindowTable[pScreen->myNum], XA_CUT_BUFFER0, serverClient, DixReadAccess); if (rc != Success) 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 mieqProcessInputEvents() in response to request from X server thread. void QuartzWritePasteboard(int screenNum, xEventPtr xe, DeviceIntPtr dev, int nevents) { 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 mieqProcessInputEvents() in response to request from X server thread. void QuartzReadPasteboard(int screenNum, xEventPtr xe, DeviceIntPtr dev, int nevents) { 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, rc; Selection *pSel; for (scrn = 0; scrn < screenInfo.numScreens; scrn++) { ScreenPtr pScreen = screenInfo.screens[scrn]; // Set the cut buffers on each screen // fixme really on each screen? dixChangeWindowProperty(serverClient, 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? rc = dixLookupSelection(&pSel, XA_PRIMARY, serverClient, DixSetAttrAccess); if (rc == Success) { // Notify client if necessary if (pSel->client) { xEvent event; event.u.u.type = SelectionClear; event.u.selectionClear.time = GetTimeInMillis(); event.u.selectionClear.window = pSel->window; event.u.selectionClear.atom = pSel->selection; TryClientEvents(pSel->client, dev, &event, 1, NoEventMask, NoEventMask /*CantBeFiltered*/, NullGrab); } // Erase it pSel->pWin = NullWindow; pSel->window = None; pSel->client = NullClient; } } if (text) free(text); if (oldText) free(oldText); }