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Diffstat (limited to 'hw/darwin/quartz/quartzPasteboard.c')
| -rw-r--r-- | hw/darwin/quartz/quartzPasteboard.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/hw/darwin/quartz/quartzPasteboard.c b/hw/darwin/quartz/quartzPasteboard.c new file mode 100644 index 000000000..658832aa1 --- /dev/null +++ b/hw/darwin/quartz/quartzPasteboard.c @@ -0,0 +1,150 @@ +/************************************************************** + * 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. + */ +/* $XFree86: xc/programs/Xserver/hw/darwin/quartz/quartzPasteboard.c,v 1.1 2002/03/28 02:21:19 torrey Exp $ */ + +#include "quartzPasteboard.h" + +#include "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); +} |