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-rw-r--r--plugins/clipboard/msd-clipboard-manager.c1069
1 files changed, 1069 insertions, 0 deletions
diff --git a/plugins/clipboard/msd-clipboard-manager.c b/plugins/clipboard/msd-clipboard-manager.c
new file mode 100644
index 0000000..c6d5a57
--- /dev/null
+++ b/plugins/clipboard/msd-clipboard-manager.c
@@ -0,0 +1,1069 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2007 Matthias Clasen
+ * Copyright (C) 2007 Anders Carlsson
+ * Copyright (C) 2007 Rodrigo Moya
+ * Copyright (C) 2007 William Jon McCann <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include "config.h"
+
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+
+#include <locale.h>
+
+#include <glib.h>
+#include <glib/gi18n.h>
+#include <gdk/gdk.h>
+#include <gdk/gdkx.h>
+#include <gtk/gtk.h>
+#include <X11/Xlib.h>
+#include <X11/Xatom.h>
+
+#include "xutils.h"
+#include "list.h"
+
+#include "mate-settings-profile.h"
+#include "msd-clipboard-manager.h"
+
+#define MSD_CLIPBOARD_MANAGER_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), MSD_TYPE_CLIPBOARD_MANAGER, MsdClipboardManagerPrivate))
+
+struct MsdClipboardManagerPrivate
+{
+ Display *display;
+ Window window;
+ Time timestamp;
+
+ List *contents;
+ List *conversions;
+
+ Window requestor;
+ Atom property;
+ Time time;
+};
+
+typedef struct
+{
+ unsigned char *data;
+ int length;
+ Atom target;
+ Atom type;
+ int format;
+ int refcount;
+} TargetData;
+
+typedef struct
+{
+ Atom target;
+ TargetData *data;
+ Atom property;
+ Window requestor;
+ int offset;
+} IncrConversion;
+
+static void msd_clipboard_manager_class_init (MsdClipboardManagerClass *klass);
+static void msd_clipboard_manager_init (MsdClipboardManager *clipboard_manager);
+static void msd_clipboard_manager_finalize (GObject *object);
+
+static void clipboard_manager_watch_cb (MsdClipboardManager *manager,
+ Window window,
+ Bool is_start,
+ long mask,
+ void *cb_data);
+
+G_DEFINE_TYPE (MsdClipboardManager, msd_clipboard_manager, G_TYPE_OBJECT)
+
+static gpointer manager_object = NULL;
+
+/* We need to use reference counting for the target data, since we may
+ * need to keep the data around after loosing the CLIPBOARD ownership
+ * to complete incremental transfers.
+ */
+static TargetData *
+target_data_ref (TargetData *data)
+{
+ data->refcount++;
+ return data;
+}
+
+static void
+target_data_unref (TargetData *data)
+{
+ data->refcount--;
+ if (data->refcount == 0) {
+ free (data->data);
+ free (data);
+ }
+}
+
+static void
+conversion_free (IncrConversion *rdata)
+{
+ if (rdata->data) {
+ target_data_unref (rdata->data);
+ }
+ free (rdata);
+}
+
+static void
+send_selection_notify (MsdClipboardManager *manager,
+ Bool success)
+{
+ XSelectionEvent notify;
+
+ notify.type = SelectionNotify;
+ notify.serial = 0;
+ notify.send_event = True;
+ notify.display = manager->priv->display;
+ notify.requestor = manager->priv->requestor;
+ notify.selection = XA_CLIPBOARD_MANAGER;
+ notify.target = XA_SAVE_TARGETS;
+ notify.property = success ? manager->priv->property : None;
+ notify.time = manager->priv->time;
+
+ gdk_error_trap_push ();
+
+ XSendEvent (manager->priv->display,
+ manager->priv->requestor,
+ False,
+ NoEventMask,
+ (XEvent *)&notify);
+ XSync (manager->priv->display, False);
+
+ gdk_error_trap_pop ();
+}
+
+static void
+finish_selection_request (MsdClipboardManager *manager,
+ XEvent *xev,
+ Bool success)
+{
+ XSelectionEvent notify;
+
+ notify.type = SelectionNotify;
+ notify.serial = 0;
+ notify.send_event = True;
+ notify.display = xev->xselectionrequest.display;
+ notify.requestor = xev->xselectionrequest.requestor;
+ notify.selection = xev->xselectionrequest.selection;
+ notify.target = xev->xselectionrequest.target;
+ notify.property = success ? xev->xselectionrequest.property : None;
+ notify.time = xev->xselectionrequest.time;
+
+ gdk_error_trap_push ();
+
+ XSendEvent (xev->xselectionrequest.display,
+ xev->xselectionrequest.requestor,
+ False, NoEventMask, (XEvent *) &notify);
+ XSync (manager->priv->display, False);
+
+ gdk_error_trap_pop ();
+}
+
+static int
+clipboard_bytes_per_item (int format)
+{
+ switch (format) {
+ case 8: return sizeof (char);
+ case 16: return sizeof (short);
+ case 32: return sizeof (long);
+ default: ;
+ }
+
+ return 0;
+}
+
+static void
+save_targets (MsdClipboardManager *manager,
+ Atom *save_targets,
+ int nitems)
+{
+ int nout, i;
+ Atom *multiple;
+ TargetData *tdata;
+
+ multiple = (Atom *) malloc (2 * nitems * sizeof (Atom));
+
+ nout = 0;
+ for (i = 0; i < nitems; i++) {
+ if (save_targets[i] != XA_TARGETS &&
+ save_targets[i] != XA_MULTIPLE &&
+ save_targets[i] != XA_DELETE &&
+ save_targets[i] != XA_INSERT_PROPERTY &&
+ save_targets[i] != XA_INSERT_SELECTION &&
+ save_targets[i] != XA_PIXMAP) {
+ tdata = (TargetData *) malloc (sizeof (TargetData));
+ tdata->data = NULL;
+ tdata->length = 0;
+ tdata->target = save_targets[i];
+ tdata->type = None;
+ tdata->format = 0;
+ tdata->refcount = 1;
+ manager->priv->contents = list_prepend (manager->priv->contents, tdata);
+
+ multiple[nout++] = save_targets[i];
+ multiple[nout++] = save_targets[i];
+ }
+ }
+
+ XFree (save_targets);
+
+ XChangeProperty (manager->priv->display, manager->priv->window,
+ XA_MULTIPLE, XA_ATOM_PAIR,
+ 32, PropModeReplace, (const unsigned char *) multiple, nout);
+ free (multiple);
+
+ XConvertSelection (manager->priv->display, XA_CLIPBOARD,
+ XA_MULTIPLE, XA_MULTIPLE,
+ manager->priv->window, manager->priv->time);
+}
+
+static int
+find_content_target (TargetData *tdata,
+ Atom target)
+{
+ return tdata->target == target;
+}
+
+static int
+find_content_type (TargetData *tdata,
+ Atom type)
+{
+ return tdata->type == type;
+}
+
+static int
+find_conversion_requestor (IncrConversion *rdata,
+ XEvent *xev)
+{
+ return (rdata->requestor == xev->xproperty.window &&
+ rdata->property == xev->xproperty.atom);
+}
+
+static void
+get_property (TargetData *tdata,
+ MsdClipboardManager *manager)
+{
+ Atom type;
+ int format;
+ unsigned long length;
+ unsigned long remaining;
+ unsigned char *data;
+
+ XGetWindowProperty (manager->priv->display,
+ manager->priv->window,
+ tdata->target,
+ 0,
+ 0x1FFFFFFF,
+ True,
+ AnyPropertyType,
+ &type,
+ &format,
+ &length,
+ &remaining,
+ &data);
+
+ if (type == None) {
+ manager->priv->contents = list_remove (manager->priv->contents, tdata);
+ free (tdata);
+ } else if (type == XA_INCR) {
+ tdata->type = type;
+ tdata->length = 0;
+ XFree (data);
+ } else {
+ tdata->type = type;
+ tdata->data = data;
+ tdata->length = length * clipboard_bytes_per_item (format);
+ tdata->format = format;
+ }
+}
+
+static Bool
+receive_incrementally (MsdClipboardManager *manager,
+ XEvent *xev)
+{
+ List *list;
+ TargetData *tdata;
+ Atom type;
+ int format;
+ unsigned long length, nitems, remaining;
+ unsigned char *data;
+
+ if (xev->xproperty.window != manager->priv->window)
+ return False;
+
+ list = list_find (manager->priv->contents,
+ (ListFindFunc) find_content_target, (void *) xev->xproperty.atom);
+
+ if (!list)
+ return False;
+
+ tdata = (TargetData *) list->data;
+
+ if (tdata->type != XA_INCR)
+ return False;
+
+ XGetWindowProperty (xev->xproperty.display,
+ xev->xproperty.window,
+ xev->xproperty.atom,
+ 0, 0x1FFFFFFF, True, AnyPropertyType,
+ &type, &format, &nitems, &remaining, &data);
+
+ length = nitems * clipboard_bytes_per_item (format);
+ if (length == 0) {
+ tdata->type = type;
+ tdata->format = format;
+
+ if (!list_find (manager->priv->contents,
+ (ListFindFunc) find_content_type, (void *)XA_INCR)) {
+ /* all incremental transfers done */
+ send_selection_notify (manager, True);
+ manager->priv->requestor = None;
+ }
+
+ XFree (data);
+ } else {
+ if (!tdata->data) {
+ tdata->data = data;
+ tdata->length = length;
+ } else {
+ tdata->data = realloc (tdata->data, tdata->length + length + 1);
+ memcpy (tdata->data + tdata->length, data, length + 1);
+ tdata->length += length;
+ XFree (data);
+ }
+ }
+
+ return True;
+}
+
+static Bool
+send_incrementally (MsdClipboardManager *manager,
+ XEvent *xev)
+{
+ List *list;
+ IncrConversion *rdata;
+ unsigned long length;
+ unsigned long items;
+ unsigned char *data;
+
+ list = list_find (manager->priv->conversions,
+ (ListFindFunc) find_conversion_requestor, xev);
+ if (list == NULL)
+ return False;
+
+ rdata = (IncrConversion *) list->data;
+
+ data = rdata->data->data + rdata->offset;
+ length = rdata->data->length - rdata->offset;
+ if (length > SELECTION_MAX_SIZE)
+ length = SELECTION_MAX_SIZE;
+
+ rdata->offset += length;
+
+ items = length / clipboard_bytes_per_item (rdata->data->format);
+ XChangeProperty (manager->priv->display, rdata->requestor,
+ rdata->property, rdata->data->type,
+ rdata->data->format, PropModeAppend,
+ data, items);
+
+ if (length == 0) {
+ manager->priv->conversions = list_remove (manager->priv->conversions, rdata);
+ conversion_free (rdata);
+ }
+
+ return True;
+}
+
+static void
+convert_clipboard_manager (MsdClipboardManager *manager,
+ XEvent *xev)
+{
+ Atom type = None;
+ int format;
+ unsigned long nitems;
+ unsigned long remaining;
+ Atom *targets = NULL;
+
+ if (xev->xselectionrequest.target == XA_SAVE_TARGETS) {
+ if (manager->priv->requestor != None || manager->priv->contents != NULL) {
+ /* We're in the middle of a conversion request, or own
+ * the CLIPBOARD already
+ */
+ finish_selection_request (manager, xev, False);
+ } else {
+ gdk_error_trap_push ();
+
+ clipboard_manager_watch_cb (manager,
+ xev->xselectionrequest.requestor,
+ True,
+ StructureNotifyMask,
+ NULL);
+ XSelectInput (manager->priv->display,
+ xev->xselectionrequest.requestor,
+ StructureNotifyMask);
+ XSync (manager->priv->display, False);
+
+ if (gdk_error_trap_pop () != Success)
+ return;
+
+ gdk_error_trap_push ();
+
+ if (xev->xselectionrequest.property != None) {
+ XGetWindowProperty (manager->priv->display,
+ xev->xselectionrequest.requestor,
+ xev->xselectionrequest.property,
+ 0, 0x1FFFFFFF, False, XA_ATOM,
+ &type, &format, &nitems, &remaining,
+ (unsigned char **) &targets);
+
+ if (gdk_error_trap_pop () != Success) {
+ if (targets)
+ XFree (targets);
+
+ return;
+ }
+ }
+
+ manager->priv->requestor = xev->xselectionrequest.requestor;
+ manager->priv->property = xev->xselectionrequest.property;
+ manager->priv->time = xev->xselectionrequest.time;
+
+ if (type == None)
+ XConvertSelection (manager->priv->display, XA_CLIPBOARD,
+ XA_TARGETS, XA_TARGETS,
+ manager->priv->window, manager->priv->time);
+ else
+ save_targets (manager, targets, nitems);
+ }
+ } else if (xev->xselectionrequest.target == XA_TIMESTAMP) {
+ XChangeProperty (manager->priv->display,
+ xev->xselectionrequest.requestor,
+ xev->xselectionrequest.property,
+ XA_INTEGER, 32, PropModeReplace,
+ (unsigned char *) &manager->priv->timestamp, 1);
+
+ finish_selection_request (manager, xev, True);
+ } else if (xev->xselectionrequest.target == XA_TARGETS) {
+ int n_targets = 0;
+ Atom targets[3];
+
+ targets[n_targets++] = XA_TARGETS;
+ targets[n_targets++] = XA_TIMESTAMP;
+ targets[n_targets++] = XA_SAVE_TARGETS;
+
+ XChangeProperty (manager->priv->display,
+ xev->xselectionrequest.requestor,
+ xev->xselectionrequest.property,
+ XA_ATOM, 32, PropModeReplace,
+ (unsigned char *) targets, n_targets);
+
+ finish_selection_request (manager, xev, True);
+ } else
+ finish_selection_request (manager, xev, False);
+}
+
+static void
+convert_clipboard_target (IncrConversion *rdata,
+ MsdClipboardManager *manager)
+{
+ TargetData *tdata;
+ Atom *targets;
+ int n_targets;
+ List *list;
+ unsigned long items;
+ XWindowAttributes atts;
+
+ if (rdata->target == XA_TARGETS) {
+ n_targets = list_length (manager->priv->contents) + 2;
+ targets = (Atom *) malloc (n_targets * sizeof (Atom));
+
+ n_targets = 0;
+
+ targets[n_targets++] = XA_TARGETS;
+ targets[n_targets++] = XA_MULTIPLE;
+
+ for (list = manager->priv->contents; list; list = list->next) {
+ tdata = (TargetData *) list->data;
+ targets[n_targets++] = tdata->target;
+ }
+
+ XChangeProperty (manager->priv->display, rdata->requestor,
+ rdata->property,
+ XA_ATOM, 32, PropModeReplace,
+ (unsigned char *) targets, n_targets);
+ free (targets);
+ } else {
+ /* Convert from stored CLIPBOARD data */
+ list = list_find (manager->priv->contents,
+ (ListFindFunc) find_content_target, (void *) rdata->target);
+
+ /* We got a target that we don't support */
+ if (!list)
+ return;
+
+ tdata = (TargetData *)list->data;
+ if (tdata->type == XA_INCR) {
+ /* we haven't completely received this target yet */
+ rdata->property = None;
+ return;
+ }
+
+ rdata->data = target_data_ref (tdata);
+ items = tdata->length / clipboard_bytes_per_item (tdata->format);
+ if (tdata->length <= SELECTION_MAX_SIZE)
+ XChangeProperty (manager->priv->display, rdata->requestor,
+ rdata->property,
+ tdata->type, tdata->format, PropModeReplace,
+ tdata->data, items);
+ else {
+ /* start incremental transfer */
+ rdata->offset = 0;
+
+ gdk_error_trap_push ();
+
+ XGetWindowAttributes (manager->priv->display, rdata->requestor, &atts);
+ XSelectInput (manager->priv->display, rdata->requestor,
+ atts.your_event_mask | PropertyChangeMask);
+
+ XChangeProperty (manager->priv->display, rdata->requestor,
+ rdata->property,
+ XA_INCR, 32, PropModeReplace,
+ (unsigned char *) &items, 1);
+
+ XSync (manager->priv->display, False);
+
+ gdk_error_trap_pop ();
+ }
+ }
+}
+
+static void
+collect_incremental (IncrConversion *rdata,
+ MsdClipboardManager *manager)
+{
+ if (rdata->offset >= 0)
+ manager->priv->conversions = list_prepend (manager->priv->conversions, rdata);
+ else {
+ if (rdata->data) {
+ target_data_unref (rdata->data);
+ rdata->data = NULL;
+ }
+ free (rdata);
+ }
+}
+
+static void
+convert_clipboard (MsdClipboardManager *manager,
+ XEvent *xev)
+{
+ List *list;
+ List *conversions;
+ IncrConversion *rdata;
+ Atom type;
+ int i;
+ int format;
+ unsigned long nitems;
+ unsigned long remaining;
+ Atom *multiple;
+
+ conversions = NULL;
+ type = None;
+
+ if (xev->xselectionrequest.target == XA_MULTIPLE) {
+ XGetWindowProperty (xev->xselectionrequest.display,
+ xev->xselectionrequest.requestor,
+ xev->xselectionrequest.property,
+ 0, 0x1FFFFFFF, False, XA_ATOM_PAIR,
+ &type, &format, &nitems, &remaining,
+ (unsigned char **) &multiple);
+
+ if (type != XA_ATOM_PAIR || nitems == 0) {
+ if (multiple)
+ free (multiple);
+ return;
+ }
+
+ for (i = 0; i < nitems; i += 2) {
+ rdata = (IncrConversion *) malloc (sizeof (IncrConversion));
+ rdata->requestor = xev->xselectionrequest.requestor;
+ rdata->target = multiple[i];
+ rdata->property = multiple[i+1];
+ rdata->data = NULL;
+ rdata->offset = -1;
+ conversions = list_prepend (conversions, rdata);
+ }
+ } else {
+ multiple = NULL;
+
+ rdata = (IncrConversion *) malloc (sizeof (IncrConversion));
+ rdata->requestor = xev->xselectionrequest.requestor;
+ rdata->target = xev->xselectionrequest.target;
+ rdata->property = xev->xselectionrequest.property;
+ rdata->data = NULL;
+ rdata->offset = -1;
+ conversions = list_prepend (conversions, rdata);
+ }
+
+ list_foreach (conversions, (Callback) convert_clipboard_target, manager);
+
+ if (conversions->next == NULL &&
+ ((IncrConversion *) conversions->data)->property == None) {
+ finish_selection_request (manager, xev, False);
+ } else {
+ if (multiple) {
+ i = 0;
+ for (list = conversions; list; list = list->next) {
+ rdata = (IncrConversion *)list->data;
+ multiple[i++] = rdata->target;
+ multiple[i++] = rdata->property;
+ }
+ XChangeProperty (xev->xselectionrequest.display,
+ xev->xselectionrequest.requestor,
+ xev->xselectionrequest.property,
+ XA_ATOM_PAIR, 32, PropModeReplace,
+ (unsigned char *) multiple, nitems);
+ }
+ finish_selection_request (manager, xev, True);
+ }
+
+ list_foreach (conversions, (Callback) collect_incremental, manager);
+ list_free (conversions);
+
+ if (multiple)
+ free (multiple);
+}
+
+static Bool
+clipboard_manager_process_event (MsdClipboardManager *manager,
+ XEvent *xev)
+{
+ Atom type;
+ int format;
+ unsigned long nitems;
+ unsigned long remaining;
+ Atom *targets;
+
+ targets = NULL;
+
+ switch (xev->xany.type) {
+ case DestroyNotify:
+ if (xev->xdestroywindow.window == manager->priv->requestor) {
+ list_foreach (manager->priv->contents, (Callback)target_data_unref, NULL);
+ list_free (manager->priv->contents);
+ manager->priv->contents = NULL;
+
+ clipboard_manager_watch_cb (manager,
+ manager->priv->requestor,
+ False,
+ 0,
+ NULL);
+ manager->priv->requestor = None;
+ }
+ break;
+ case PropertyNotify:
+ if (xev->xproperty.state == PropertyNewValue) {
+ return receive_incrementally (manager, xev);
+ } else {
+ return send_incrementally (manager, xev);
+ }
+
+ case SelectionClear:
+ if (xev->xany.window != manager->priv->window)
+ return False;
+
+ if (xev->xselectionclear.selection == XA_CLIPBOARD_MANAGER) {
+ /* We lost the manager selection */
+ if (manager->priv->contents) {
+ list_foreach (manager->priv->contents, (Callback)target_data_unref, NULL);
+ list_free (manager->priv->contents);
+ manager->priv->contents = NULL;
+
+ XSetSelectionOwner (manager->priv->display,
+ XA_CLIPBOARD,
+ None, manager->priv->time);
+ }
+
+ return True;
+ }
+ if (xev->xselectionclear.selection == XA_CLIPBOARD) {
+ /* We lost the clipboard selection */
+ list_foreach (manager->priv->contents, (Callback)target_data_unref, NULL);
+ list_free (manager->priv->contents);
+ manager->priv->contents = NULL;
+ clipboard_manager_watch_cb (manager,
+ manager->priv->requestor,
+ False,
+ 0,
+ NULL);
+ manager->priv->requestor = None;
+
+ return True;
+ }
+ break;
+
+ case SelectionNotify:
+ if (xev->xany.window != manager->priv->window)
+ return False;
+
+ if (xev->xselection.selection == XA_CLIPBOARD) {
+ /* a CLIPBOARD conversion is done */
+ if (xev->xselection.property == XA_TARGETS) {
+ XGetWindowProperty (xev->xselection.display,
+ xev->xselection.requestor,
+ xev->xselection.property,
+ 0, 0x1FFFFFFF, True, XA_ATOM,
+ &type, &format, &nitems, &remaining,
+ (unsigned char **) &targets);
+
+ save_targets (manager, targets, nitems);
+ } else if (xev->xselection.property == XA_MULTIPLE) {
+ List *tmp;
+
+ tmp = list_copy (manager->priv->contents);
+ list_foreach (tmp, (Callback) get_property, manager);
+ list_free (tmp);
+
+ manager->priv->time = xev->xselection.time;
+ XSetSelectionOwner (manager->priv->display, XA_CLIPBOARD,
+ manager->priv->window, manager->priv->time);
+
+ if (manager->priv->property != None)
+ XChangeProperty (manager->priv->display,
+ manager->priv->requestor,
+ manager->priv->property,
+ XA_ATOM, 32, PropModeReplace,
+ (unsigned char *)&XA_NULL, 1);
+
+ if (!list_find (manager->priv->contents,
+ (ListFindFunc)find_content_type, (void *)XA_INCR)) {
+ /* all transfers done */
+ send_selection_notify (manager, True);
+ clipboard_manager_watch_cb (manager,
+ manager->priv->requestor,
+ False,
+ 0,
+ NULL);
+ manager->priv->requestor = None;
+ }
+ }
+ else if (xev->xselection.property == None) {
+ send_selection_notify (manager, False);
+ clipboard_manager_watch_cb (manager,
+ manager->priv->requestor,
+ False,
+ 0,
+ NULL);
+ manager->priv->requestor = None;
+ }
+
+ return True;
+ }
+ break;
+
+ case SelectionRequest:
+ if (xev->xany.window != manager->priv->window) {
+ return False;
+ }
+
+ if (xev->xselectionrequest.selection == XA_CLIPBOARD_MANAGER) {
+ convert_clipboard_manager (manager, xev);
+ return True;
+ } else if (xev->xselectionrequest.selection == XA_CLIPBOARD) {
+ convert_clipboard (manager, xev);
+ return True;
+ }
+ break;
+
+ default: ;
+ }
+
+ return False;
+}
+
+static GdkFilterReturn
+clipboard_manager_event_filter (GdkXEvent *xevent,
+ GdkEvent *event,
+ MsdClipboardManager *manager)
+{
+ if (clipboard_manager_process_event (manager, (XEvent *)xevent)) {
+ return GDK_FILTER_REMOVE;
+ } else {
+ return GDK_FILTER_CONTINUE;
+ }
+}
+
+static void
+clipboard_manager_watch_cb (MsdClipboardManager *manager,
+ Window window,
+ Bool is_start,
+ long mask,
+ void *cb_data)
+{
+ GdkWindow *gdkwin;
+ GdkDisplay *display;
+
+ display = gdk_display_get_default ();
+ gdkwin = gdk_window_lookup_for_display (display, window);
+
+ if (is_start) {
+ if (gdkwin == NULL) {
+ gdkwin = gdk_window_foreign_new_for_display (display, window);
+ } else {
+ g_object_ref (gdkwin);
+ }
+
+ gdk_window_add_filter (gdkwin,
+ (GdkFilterFunc)clipboard_manager_event_filter,
+ manager);
+ } else {
+ if (gdkwin == NULL) {
+ return;
+ }
+ gdk_window_remove_filter (gdkwin,
+ (GdkFilterFunc)clipboard_manager_event_filter,
+ manager);
+ g_object_unref (gdkwin);
+ }
+}
+
+static gboolean
+start_clipboard_idle_cb (MsdClipboardManager *manager)
+{
+ XClientMessageEvent xev;
+
+
+ mate_settings_profile_start (NULL);
+
+ init_atoms (manager->priv->display);
+
+ /* check if there is a clipboard manager running */
+ if (XGetSelectionOwner (manager->priv->display, XA_CLIPBOARD_MANAGER)) {
+ g_warning ("Clipboard manager is already running.");
+ return FALSE;
+ }
+
+ manager->priv->contents = NULL;
+ manager->priv->conversions = NULL;
+ manager->priv->requestor = None;
+
+ manager->priv->window = XCreateSimpleWindow (manager->priv->display,
+ DefaultRootWindow (manager->priv->display),
+ 0, 0, 10, 10, 0,
+ WhitePixel (manager->priv->display,
+ DefaultScreen (manager->priv->display)),
+ WhitePixel (manager->priv->display,
+ DefaultScreen (manager->priv->display)));
+ clipboard_manager_watch_cb (manager,
+ manager->priv->window,
+ True,
+ PropertyChangeMask,
+ NULL);
+ XSelectInput (manager->priv->display,
+ manager->priv->window,
+ PropertyChangeMask);
+ manager->priv->timestamp = get_server_time (manager->priv->display, manager->priv->window);
+
+ XSetSelectionOwner (manager->priv->display,
+ XA_CLIPBOARD_MANAGER,
+ manager->priv->window,
+ manager->priv->timestamp);
+
+ /* Check to see if we managed to claim the selection. If not,
+ * we treat it as if we got it then immediately lost it
+ */
+ if (XGetSelectionOwner (manager->priv->display, XA_CLIPBOARD_MANAGER) == manager->priv->window) {
+ xev.type = ClientMessage;
+ xev.window = DefaultRootWindow (manager->priv->display);
+ xev.message_type = XA_MANAGER;
+ xev.format = 32;
+ xev.data.l[0] = manager->priv->timestamp;
+ xev.data.l[1] = XA_CLIPBOARD_MANAGER;
+ xev.data.l[2] = manager->priv->window;
+ xev.data.l[3] = 0; /* manager specific data */
+ xev.data.l[4] = 0; /* manager specific data */
+
+ XSendEvent (manager->priv->display,
+ DefaultRootWindow (manager->priv->display),
+ False,
+ StructureNotifyMask,
+ (XEvent *)&xev);
+ } else {
+ clipboard_manager_watch_cb (manager,
+ manager->priv->window,
+ False,
+ 0,
+ NULL);
+ /* FIXME: manager->priv->terminate (manager->priv->cb_data); */
+ }
+
+ mate_settings_profile_end (NULL);
+
+ return FALSE;
+}
+
+gboolean
+msd_clipboard_manager_start (MsdClipboardManager *manager,
+ GError **error)
+{
+ mate_settings_profile_start (NULL);
+
+ g_idle_add ((GSourceFunc) start_clipboard_idle_cb, manager);
+
+ mate_settings_profile_end (NULL);
+
+ return TRUE;
+}
+
+void
+msd_clipboard_manager_stop (MsdClipboardManager *manager)
+{
+ g_debug ("Stopping clipboard manager");
+
+ clipboard_manager_watch_cb (manager,
+ manager->priv->window,
+ FALSE,
+ 0,
+ NULL);
+ XDestroyWindow (manager->priv->display, manager->priv->window);
+
+ list_foreach (manager->priv->conversions, (Callback) conversion_free, NULL);
+ list_free (manager->priv->conversions);
+
+ list_foreach (manager->priv->contents, (Callback) target_data_unref, NULL);
+ list_free (manager->priv->contents);
+}
+
+static void
+msd_clipboard_manager_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ MsdClipboardManager *self;
+
+ self = MSD_CLIPBOARD_MANAGER (object);
+
+ switch (prop_id) {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+msd_clipboard_manager_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ MsdClipboardManager *self;
+
+ self = MSD_CLIPBOARD_MANAGER (object);
+
+ switch (prop_id) {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static GObject *
+msd_clipboard_manager_constructor (GType type,
+ guint n_construct_properties,
+ GObjectConstructParam *construct_properties)
+{
+ MsdClipboardManager *clipboard_manager;
+ MsdClipboardManagerClass *klass;
+
+ klass = MSD_CLIPBOARD_MANAGER_CLASS (g_type_class_peek (MSD_TYPE_CLIPBOARD_MANAGER));
+
+ clipboard_manager = MSD_CLIPBOARD_MANAGER (G_OBJECT_CLASS (msd_clipboard_manager_parent_class)->constructor (type,
+ n_construct_properties,
+ construct_properties));
+
+ return G_OBJECT (clipboard_manager);
+}
+
+static void
+msd_clipboard_manager_dispose (GObject *object)
+{
+ MsdClipboardManager *clipboard_manager;
+
+ clipboard_manager = MSD_CLIPBOARD_MANAGER (object);
+
+ G_OBJECT_CLASS (msd_clipboard_manager_parent_class)->dispose (object);
+}
+
+static void
+msd_clipboard_manager_class_init (MsdClipboardManagerClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->get_property = msd_clipboard_manager_get_property;
+ object_class->set_property = msd_clipboard_manager_set_property;
+ object_class->constructor = msd_clipboard_manager_constructor;
+ object_class->dispose = msd_clipboard_manager_dispose;
+ object_class->finalize = msd_clipboard_manager_finalize;
+
+ g_type_class_add_private (klass, sizeof (MsdClipboardManagerPrivate));
+}
+
+static void
+msd_clipboard_manager_init (MsdClipboardManager *manager)
+{
+ manager->priv = MSD_CLIPBOARD_MANAGER_GET_PRIVATE (manager);
+
+ manager->priv->display = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
+
+}
+
+static void
+msd_clipboard_manager_finalize (GObject *object)
+{
+ MsdClipboardManager *clipboard_manager;
+
+ g_return_if_fail (object != NULL);
+ g_return_if_fail (MSD_IS_CLIPBOARD_MANAGER (object));
+
+ clipboard_manager = MSD_CLIPBOARD_MANAGER (object);
+
+ g_return_if_fail (clipboard_manager->priv != NULL);
+
+ G_OBJECT_CLASS (msd_clipboard_manager_parent_class)->finalize (object);
+}
+
+MsdClipboardManager *
+msd_clipboard_manager_new (void)
+{
+ if (manager_object != NULL) {
+ g_object_ref (manager_object);
+ } else {
+ manager_object = g_object_new (MSD_TYPE_CLIPBOARD_MANAGER, NULL);
+ g_object_add_weak_pointer (manager_object,
+ (gpointer *) &manager_object);
+ }
+
+ return MSD_CLIPBOARD_MANAGER (manager_object);
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-02 09:26:02 +0000