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authorReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
committerReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
commitf4092abdf94af6a99aff944d6264bc1284e8bdd4 (patch)
tree2ac1c9cc16ceb93edb2c4382c088dac5aeafdf0f /nx-X11/programs/Xserver/hw/darwin/quartz/quartzPasteboard.c
parenta840692edc9c6d19cd7c057f68e39c7d95eb767d (diff)
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Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1
Summary: Imported nx-X11-3.1.0-1.tar.gz Keywords: Imported nx-X11-3.1.0-1.tar.gz into Git repository
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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.
+ */
+/* $XFree86: xc/programs/Xserver/hw/darwin/bundle/quartzPasteboard.c,v 1.3 2001/09/23 04:04:49 torrey Exp $ */
+
+#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);
+}