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ardour/libs/tk/ytk/gtkclipboard-quartz.c

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/* GTK - The GIMP Toolkit
* Copyright (C) 2000 Red Hat, Inc.
* Copyright (C) 2004 Nokia Corporation
* Copyright (C) 2006-2008 Imendio AB
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#include "config.h"
#include <string.h>
#include "gdk/gdkquartz.h"
#import <Cocoa/Cocoa.h>
/* NSInteger only exists in Leopard and newer. This check has to be
* done after inclusion of the system headers. If NSInteger has not
* been defined, we know for sure that we are on 32-bit.
*/
#ifndef NSINTEGER_DEFINED
typedef int NSInteger;
typedef unsigned int NSUInteger;
#endif
#include "gtkclipboard.h"
#include "gtkinvisible.h"
#include "gtkmain.h"
#include "gtkmarshalers.h"
#include "gtkintl.h"
#include "gtktextbuffer.h"
#include "gtkquartz.h"
#include "gtkalias.h"
enum {
OWNER_CHANGE,
LAST_SIGNAL
};
@interface GtkClipboardOwner : NSObject {
GtkClipboard *clipboard;
@public
gboolean setting_same_owner;
}
@end
typedef struct _GtkClipboardClass GtkClipboardClass;
struct _GtkClipboard
{
GObject parent_instance;
NSPasteboard *pasteboard;
GtkClipboardOwner *owner;
NSInteger change_count;
GdkAtom selection;
GtkClipboardGetFunc get_func;
GtkClipboardClearFunc clear_func;
gpointer user_data;
gboolean have_owner;
GtkTargetList *target_list;
gboolean have_selection;
GdkDisplay *display;
GdkAtom *cached_targets;
gint n_cached_targets;
guint notify_signal_id;
gboolean storing_selection;
GMainLoop *store_loop;
guint store_timeout;
gint n_storable_targets;
GdkAtom *storable_targets;
};
struct _GtkClipboardClass
{
GObjectClass parent_class;
void (*owner_change) (GtkClipboard *clipboard,
GdkEventOwnerChange *event);
};
static void gtk_clipboard_class_init (GtkClipboardClass *class);
static void gtk_clipboard_finalize (GObject *object);
static void gtk_clipboard_owner_change (GtkClipboard *clipboard,
GdkEventOwnerChange *event);
static void clipboard_unset (GtkClipboard *clipboard);
static GtkClipboard *clipboard_peek (GdkDisplay *display,
GdkAtom selection,
gboolean only_if_exists);
@implementation GtkClipboardOwner
-(void)pasteboard:(NSPasteboard *)sender provideDataForType:(NSString *)type
{
GtkSelectionData selection_data;
guint info;
if (!clipboard->target_list)
return;
memset (&selection_data, 0, sizeof (GtkSelectionData));
selection_data.selection = clipboard->selection;
selection_data.target = gdk_quartz_pasteboard_type_to_atom_libgtk_only (type);
selection_data.display = gdk_display_get_default ();
selection_data.length = -1;
if (gtk_target_list_find (clipboard->target_list, selection_data.target, &info))
{
clipboard->get_func (clipboard, &selection_data,
info,
clipboard->user_data);
if (selection_data.length >= 0)
_gtk_quartz_set_selection_data_for_pasteboard (clipboard->pasteboard,
&selection_data);
g_free (selection_data.data);
}
}
/* pasteboardChangedOwner is not called immediately, and it's not called
* reliably. It is somehow documented in the apple api docs, but the docs
* suck and don't really give clear instructions. Therefore we track
* changeCount in several places below and clear the clipboard if it
* changed.
*/
- (void)pasteboardChangedOwner:(NSPasteboard *)sender
{
if (! setting_same_owner)
clipboard_unset (clipboard);
}
- (id)initWithClipboard:(GtkClipboard *)aClipboard
{
self = [super init];
if (self)
{
clipboard = aClipboard;
setting_same_owner = FALSE;
}
return self;
}
@end
static const gchar clipboards_owned_key[] = "gtk-clipboards-owned";
static GQuark clipboards_owned_key_id = 0;
static GObjectClass *parent_class;
static guint clipboard_signals[LAST_SIGNAL] = { 0 };
GType
gtk_clipboard_get_type (void)
{
static GType clipboard_type = 0;
if (!clipboard_type)
{
const GTypeInfo clipboard_info =
{
sizeof (GtkClipboardClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_clipboard_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkClipboard),
0, /* n_preallocs */
(GInstanceInitFunc) NULL,
};
clipboard_type = g_type_register_static (G_TYPE_OBJECT, I_("GtkClipboard"),
&clipboard_info, 0);
}
return clipboard_type;
}
static void
gtk_clipboard_class_init (GtkClipboardClass *class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (class);
parent_class = g_type_class_peek_parent (class);
gobject_class->finalize = gtk_clipboard_finalize;
class->owner_change = gtk_clipboard_owner_change;
clipboard_signals[OWNER_CHANGE] =
g_signal_new (I_("owner-change"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkClipboardClass, owner_change),
NULL, NULL,
_gtk_marshal_VOID__BOXED,
G_TYPE_NONE, 1,
GDK_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE);
}
static void
gtk_clipboard_finalize (GObject *object)
{
GtkClipboard *clipboard;
GSList *clipboards;
clipboard = GTK_CLIPBOARD (object);
clipboards = g_object_get_data (G_OBJECT (clipboard->display), "gtk-clipboard-list");
if (g_slist_index (clipboards, clipboard) >= 0)
g_warning ("GtkClipboard prematurely finalized");
clipboard_unset (clipboard);
clipboards = g_object_get_data (G_OBJECT (clipboard->display), "gtk-clipboard-list");
clipboards = g_slist_remove (clipboards, clipboard);
g_object_set_data (G_OBJECT (clipboard->display), I_("gtk-clipboard-list"), clipboards);
if (clipboard->store_loop && g_main_loop_is_running (clipboard->store_loop))
g_main_loop_quit (clipboard->store_loop);
if (clipboard->store_timeout != 0)
g_source_remove (clipboard->store_timeout);
g_free (clipboard->storable_targets);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
clipboard_display_closed (GdkDisplay *display,
gboolean is_error,
GtkClipboard *clipboard)
{
GSList *clipboards;
clipboards = g_object_get_data (G_OBJECT (display), "gtk-clipboard-list");
g_object_run_dispose (G_OBJECT (clipboard));
clipboards = g_slist_remove (clipboards, clipboard);
g_object_set_data (G_OBJECT (display), I_("gtk-clipboard-list"), clipboards);
g_object_unref (clipboard);
}
GtkClipboard *
gtk_clipboard_get_for_display (GdkDisplay *display,
GdkAtom selection)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
g_return_val_if_fail (!display->closed, NULL);
return clipboard_peek (display, selection, FALSE);
}
GtkClipboard *
gtk_clipboard_get (GdkAtom selection)
{
return gtk_clipboard_get_for_display (gdk_display_get_default (), selection);
}
static void
clipboard_owner_destroyed (gpointer data)
{
GSList *clipboards = data;
GSList *tmp_list;
tmp_list = clipboards;
while (tmp_list)
{
GtkClipboard *clipboard = tmp_list->data;
clipboard->get_func = NULL;
clipboard->clear_func = NULL;
clipboard->user_data = NULL;
clipboard->have_owner = FALSE;
if (clipboard->target_list)
{
gtk_target_list_unref (clipboard->target_list);
clipboard->target_list = NULL;
}
gtk_clipboard_clear (clipboard);
tmp_list = tmp_list->next;
}
g_slist_free (clipboards);
}
static void
clipboard_add_owner_notify (GtkClipboard *clipboard)
{
if (!clipboards_owned_key_id)
clipboards_owned_key_id = g_quark_from_static_string (clipboards_owned_key);
if (clipboard->have_owner)
g_object_set_qdata_full (clipboard->user_data, clipboards_owned_key_id,
g_slist_prepend (g_object_steal_qdata (clipboard->user_data,
clipboards_owned_key_id),
clipboard),
clipboard_owner_destroyed);
}
static void
clipboard_remove_owner_notify (GtkClipboard *clipboard)
{
if (clipboard->have_owner)
g_object_set_qdata_full (clipboard->user_data, clipboards_owned_key_id,
g_slist_remove (g_object_steal_qdata (clipboard->user_data,
clipboards_owned_key_id),
clipboard),
clipboard_owner_destroyed);
}
static gboolean
gtk_clipboard_set_contents (GtkClipboard *clipboard,
const GtkTargetEntry *targets,
guint n_targets,
GtkClipboardGetFunc get_func,
GtkClipboardClearFunc clear_func,
gpointer user_data,
gboolean have_owner)
{
GtkClipboardOwner *owner;
NSSet *types;
NSAutoreleasePool *pool;
if (!(clipboard->have_owner && have_owner) ||
clipboard->user_data != user_data)
{
clipboard_unset (clipboard);
if (clipboard->get_func)
{
/* Calling unset() caused the clipboard contents to be reset!
* Avoid leaking and return
*/
if (!(clipboard->have_owner && have_owner) ||
clipboard->user_data != user_data)
{
(*clear_func) (clipboard, user_data);
return FALSE;
}
else
{
return TRUE;
}
}
}
pool = [[NSAutoreleasePool alloc] init];
types = _gtk_quartz_target_entries_to_pasteboard_types (targets, n_targets);
/* call declareTypes before setting the clipboard members because
* declareTypes might clear the clipboard
*/
if (user_data && user_data == clipboard->user_data)
{
owner = [clipboard->owner retain];
owner->setting_same_owner = TRUE;
clipboard->change_count = [clipboard->pasteboard declareTypes: [types allObjects]
owner: owner];
owner->setting_same_owner = FALSE;
}
else
{
owner = [[GtkClipboardOwner alloc] initWithClipboard:clipboard];
clipboard->change_count = [clipboard->pasteboard declareTypes: [types allObjects]
owner: owner];
}
[owner release];
[types release];
[pool release];
clipboard->owner = owner;
clipboard->user_data = user_data;
clipboard->have_owner = have_owner;
if (have_owner)
clipboard_add_owner_notify (clipboard);
clipboard->get_func = get_func;
clipboard->clear_func = clear_func;
if (clipboard->target_list)
gtk_target_list_unref (clipboard->target_list);
clipboard->target_list = gtk_target_list_new (targets, n_targets);
return TRUE;
}
gboolean
gtk_clipboard_set_with_data (GtkClipboard *clipboard,
const GtkTargetEntry *targets,
guint n_targets,
GtkClipboardGetFunc get_func,
GtkClipboardClearFunc clear_func,
gpointer user_data)
{
g_return_val_if_fail (clipboard != NULL, FALSE);
g_return_val_if_fail (targets != NULL, FALSE);
g_return_val_if_fail (get_func != NULL, FALSE);
return gtk_clipboard_set_contents (clipboard, targets, n_targets,
get_func, clear_func, user_data,
FALSE);
}
gboolean
gtk_clipboard_set_with_owner (GtkClipboard *clipboard,
const GtkTargetEntry *targets,
guint n_targets,
GtkClipboardGetFunc get_func,
GtkClipboardClearFunc clear_func,
GObject *owner)
{
g_return_val_if_fail (clipboard != NULL, FALSE);
g_return_val_if_fail (targets != NULL, FALSE);
g_return_val_if_fail (get_func != NULL, FALSE);
g_return_val_if_fail (G_IS_OBJECT (owner), FALSE);
return gtk_clipboard_set_contents (clipboard, targets, n_targets,
get_func, clear_func, owner,
TRUE);
}
GObject *
gtk_clipboard_get_owner (GtkClipboard *clipboard)
{
g_return_val_if_fail (clipboard != NULL, NULL);
if (clipboard->change_count < [clipboard->pasteboard changeCount])
{
clipboard_unset (clipboard);
clipboard->change_count = [clipboard->pasteboard changeCount];
}
if (clipboard->have_owner)
return clipboard->user_data;
else
return NULL;
}
static void
clipboard_unset (GtkClipboard *clipboard)
{
GtkClipboardClearFunc old_clear_func;
gpointer old_data;
gboolean old_have_owner;
gint old_n_storable_targets;
old_clear_func = clipboard->clear_func;
old_data = clipboard->user_data;
old_have_owner = clipboard->have_owner;
old_n_storable_targets = clipboard->n_storable_targets;
if (old_have_owner)
{
clipboard_remove_owner_notify (clipboard);
clipboard->have_owner = FALSE;
}
clipboard->n_storable_targets = -1;
g_free (clipboard->storable_targets);
clipboard->storable_targets = NULL;
clipboard->owner = NULL;
clipboard->get_func = NULL;
clipboard->clear_func = NULL;
clipboard->user_data = NULL;
if (old_clear_func)
old_clear_func (clipboard, old_data);
if (clipboard->target_list)
{
gtk_target_list_unref (clipboard->target_list);
clipboard->target_list = NULL;
}
/* If we've transferred the clipboard data to the manager,
* unref the owner
*/
if (old_have_owner &&
old_n_storable_targets != -1)
g_object_unref (old_data);
}
void
gtk_clipboard_clear (GtkClipboard *clipboard)
{
clipboard_unset (clipboard);
[clipboard->pasteboard declareTypes:nil owner:nil];
}
static void
text_get_func (GtkClipboard *clipboard,
GtkSelectionData *selection_data,
guint info,
gpointer data)
{
gtk_selection_data_set_text (selection_data, data, -1);
}
static void
text_clear_func (GtkClipboard *clipboard,
gpointer data)
{
g_free (data);
}
void
gtk_clipboard_set_text (GtkClipboard *clipboard,
const gchar *text,
gint len)
{
GtkTargetEntry target = { "UTF8_STRING", 0, 0 };
g_return_if_fail (clipboard != NULL);
g_return_if_fail (text != NULL);
if (len < 0)
len = strlen (text);
gtk_clipboard_set_with_data (clipboard,
&target, 1,
text_get_func, text_clear_func,
g_strndup (text, len));
gtk_clipboard_set_can_store (clipboard, NULL, 0);
}
static void
pixbuf_get_func (GtkClipboard *clipboard,
GtkSelectionData *selection_data,
guint info,
gpointer data)
{
gtk_selection_data_set_pixbuf (selection_data, data);
}
static void
pixbuf_clear_func (GtkClipboard *clipboard,
gpointer data)
{
g_object_unref (data);
}
void
gtk_clipboard_set_image (GtkClipboard *clipboard,
GdkPixbuf *pixbuf)
{
GtkTargetList *list;
GList *l;
GtkTargetEntry *targets;
gint n_targets, i;
g_return_if_fail (clipboard != NULL);
g_return_if_fail (GDK_IS_PIXBUF (pixbuf));
list = gtk_target_list_new (NULL, 0);
gtk_target_list_add_image_targets (list, 0, TRUE);
n_targets = g_list_length (list->list);
targets = g_new0 (GtkTargetEntry, n_targets);
for (l = list->list, i = 0; l; l = l->next, i++)
{
GtkTargetPair *pair = (GtkTargetPair *)l->data;
targets[i].target = gdk_atom_name (pair->target);
}
gtk_clipboard_set_with_data (clipboard,
targets, n_targets,
pixbuf_get_func, pixbuf_clear_func,
g_object_ref (pixbuf));
gtk_clipboard_set_can_store (clipboard, NULL, 0);
for (i = 0; i < n_targets; i++)
g_free (targets[i].target);
g_free (targets);
gtk_target_list_unref (list);
}
void
gtk_clipboard_request_contents (GtkClipboard *clipboard,
GdkAtom target,
GtkClipboardReceivedFunc callback,
gpointer user_data)
{
GtkSelectionData *data;
data = gtk_clipboard_wait_for_contents (clipboard, target);
callback (clipboard, data, user_data);
gtk_selection_data_free (data);
}
void
gtk_clipboard_request_text (GtkClipboard *clipboard,
GtkClipboardTextReceivedFunc callback,
gpointer user_data)
{
gchar *data = gtk_clipboard_wait_for_text (clipboard);
callback (clipboard, data, user_data);
g_free (data);
}
void
gtk_clipboard_request_rich_text (GtkClipboard *clipboard,
GtkTextBuffer *buffer,
GtkClipboardRichTextReceivedFunc callback,
gpointer user_data)
{
/* FIXME: Implement */
}
guint8 *
gtk_clipboard_wait_for_rich_text (GtkClipboard *clipboard,
GtkTextBuffer *buffer,
GdkAtom *format,
gsize *length)
{
/* FIXME: Implement */
return NULL;
}
void
gtk_clipboard_request_image (GtkClipboard *clipboard,
GtkClipboardImageReceivedFunc callback,
gpointer user_data)
{
GdkPixbuf *pixbuf = gtk_clipboard_wait_for_image (clipboard);
callback (clipboard, pixbuf, user_data);
if (pixbuf)
g_object_unref (pixbuf);
}
void
gtk_clipboard_request_uris (GtkClipboard *clipboard,
GtkClipboardURIReceivedFunc callback,
gpointer user_data)
{
gchar **uris = gtk_clipboard_wait_for_uris (clipboard);
callback (clipboard, uris, user_data);
g_strfreev (uris);
}
void
gtk_clipboard_request_targets (GtkClipboard *clipboard,
GtkClipboardTargetsReceivedFunc callback,
gpointer user_data)
{
GdkAtom *targets;
gint n_targets;
gtk_clipboard_wait_for_targets (clipboard, &targets, &n_targets);
callback (clipboard, targets, n_targets, user_data);
}
GtkSelectionData *
gtk_clipboard_wait_for_contents (GtkClipboard *clipboard,
GdkAtom target)
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
GtkSelectionData *selection_data = NULL;
if (clipboard->change_count < [clipboard->pasteboard changeCount])
{
clipboard_unset (clipboard);
clipboard->change_count = [clipboard->pasteboard changeCount];
}
if (target == gdk_atom_intern_static_string ("TARGETS"))
{
NSArray *types = [clipboard->pasteboard types];
int i, length;
GList *atom_list, *l;
GdkAtom *atoms;
length = [types count] * sizeof (GdkAtom);
selection_data = g_slice_new0 (GtkSelectionData);
selection_data->selection = clipboard->selection;
selection_data->target = target;
if (!selection_data->display)
selection_data->display = gdk_display_get_default ();
atoms = g_malloc (length);
atom_list = _gtk_quartz_pasteboard_types_to_atom_list (types);
for (l = atom_list, i = 0; l ; l = l->next, i++)
atoms[i] = GDK_POINTER_TO_ATOM (l->data);
g_list_free (atom_list);
gtk_selection_data_set (selection_data,
GDK_SELECTION_TYPE_ATOM, 32,
(guchar *)atoms, length);
[pool release];
return selection_data;
}
selection_data = _gtk_quartz_get_selection_data_from_pasteboard (clipboard->pasteboard,
target,
clipboard->selection);
[pool release];
return selection_data;
}
gchar *
gtk_clipboard_wait_for_text (GtkClipboard *clipboard)
{
GtkSelectionData *data;
gchar *result;
data = gtk_clipboard_wait_for_contents (clipboard,
gdk_atom_intern_static_string ("UTF8_STRING"));
result = (gchar *)gtk_selection_data_get_text (data);
gtk_selection_data_free (data);
return result;
}
GdkPixbuf *
gtk_clipboard_wait_for_image (GtkClipboard *clipboard)
{
GdkAtom target = gdk_atom_intern_static_string("image/tiff");
int i;
GtkSelectionData *data;
data = gtk_clipboard_wait_for_contents (clipboard, target);
if (data && data->data)
{
GdkPixbuf *pixbuf = gtk_selection_data_get_pixbuf (data);
gtk_selection_data_free (data);
return pixbuf;
}
return NULL;
}
gchar **
gtk_clipboard_wait_for_uris (GtkClipboard *clipboard)
{
GtkSelectionData *data;
data = gtk_clipboard_wait_for_contents (clipboard, gdk_atom_intern_static_string ("text/uri-list"));
if (data)
{
gchar **uris;
uris = gtk_selection_data_get_uris (data);
gtk_selection_data_free (data);
return uris;
}
return NULL;
}
GdkDisplay *
gtk_clipboard_get_display (GtkClipboard *clipboard)
{
g_return_val_if_fail (clipboard != NULL, NULL);
return clipboard->display;
}
gboolean
gtk_clipboard_wait_is_text_available (GtkClipboard *clipboard)
{
GtkSelectionData *data;
gboolean result = FALSE;
data = gtk_clipboard_wait_for_contents (clipboard, gdk_atom_intern_static_string ("TARGETS"));
if (data)
{
result = gtk_selection_data_targets_include_text (data);
gtk_selection_data_free (data);
}
return result;
}
gboolean
gtk_clipboard_wait_is_rich_text_available (GtkClipboard *clipboard,
GtkTextBuffer *buffer)
{
GtkSelectionData *data;
gboolean result = FALSE;
g_return_val_if_fail (GTK_IS_CLIPBOARD (clipboard), FALSE);
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
data = gtk_clipboard_wait_for_contents (clipboard, gdk_atom_intern_static_string ("TARGETS"));
if (data)
{
result = gtk_selection_data_targets_include_rich_text (data, buffer);
gtk_selection_data_free (data);
}
return result;
}
gboolean
gtk_clipboard_wait_is_image_available (GtkClipboard *clipboard)
{
GtkSelectionData *data;
gboolean result = FALSE;
data = gtk_clipboard_wait_for_contents (clipboard,
gdk_atom_intern_static_string ("TARGETS"));
if (data)
{
result = gtk_selection_data_targets_include_image (data, FALSE);
gtk_selection_data_free (data);
}
return result;
}
gboolean
gtk_clipboard_wait_is_uris_available (GtkClipboard *clipboard)
{
GtkSelectionData *data;
gboolean result = FALSE;
data = gtk_clipboard_wait_for_contents (clipboard,
gdk_atom_intern_static_string ("TARGETS"));
if (data)
{
result = gtk_selection_data_targets_include_uri (data);
gtk_selection_data_free (data);
}
return result;
}
gboolean
gtk_clipboard_wait_for_targets (GtkClipboard *clipboard,
GdkAtom **targets,
gint *n_targets)
{
GtkSelectionData *data;
gboolean result = FALSE;
g_return_val_if_fail (clipboard != NULL, FALSE);
/* If the display supports change notification we cache targets */
if (gdk_display_supports_selection_notification (gtk_clipboard_get_display (clipboard)) &&
clipboard->n_cached_targets != -1)
{
if (n_targets)
*n_targets = clipboard->n_cached_targets;
if (targets)
*targets = g_memdup (clipboard->cached_targets,
clipboard->n_cached_targets * sizeof (GdkAtom));
return TRUE;
}
if (n_targets)
*n_targets = 0;
if (targets)
*targets = NULL;
data = gtk_clipboard_wait_for_contents (clipboard, gdk_atom_intern_static_string ("TARGETS"));
if (data)
{
GdkAtom *tmp_targets;
gint tmp_n_targets;
result = gtk_selection_data_get_targets (data, &tmp_targets, &tmp_n_targets);
if (gdk_display_supports_selection_notification (gtk_clipboard_get_display (clipboard)))
{
clipboard->n_cached_targets = tmp_n_targets;
clipboard->cached_targets = g_memdup (tmp_targets,
tmp_n_targets * sizeof (GdkAtom));
}
if (n_targets)
*n_targets = tmp_n_targets;
if (targets)
*targets = tmp_targets;
else
g_free (tmp_targets);
gtk_selection_data_free (data);
}
return result;
}
static GtkClipboard *
clipboard_peek (GdkDisplay *display,
GdkAtom selection,
gboolean only_if_exists)
{
GtkClipboard *clipboard = NULL;
GSList *clipboards;
GSList *tmp_list;
if (selection == GDK_NONE)
selection = GDK_SELECTION_CLIPBOARD;
clipboards = g_object_get_data (G_OBJECT (display), "gtk-clipboard-list");
tmp_list = clipboards;
while (tmp_list)
{
clipboard = tmp_list->data;
if (clipboard->selection == selection)
break;
tmp_list = tmp_list->next;
}
if (!tmp_list && !only_if_exists)
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
NSString *pasteboard_name;
clipboard = g_object_new (GTK_TYPE_CLIPBOARD, NULL);
if (selection == GDK_SELECTION_CLIPBOARD)
pasteboard_name = NSGeneralPboard;
else
{
char *atom_string = gdk_atom_name (selection);
pasteboard_name = [NSString stringWithFormat:@"_GTK_%@",
[NSString stringWithUTF8String:atom_string]];
g_free (atom_string);
}
clipboard->pasteboard = [NSPasteboard pasteboardWithName:pasteboard_name];
[pool release];
clipboard->selection = selection;
clipboard->display = display;
clipboard->n_cached_targets = -1;
clipboard->n_storable_targets = -1;
clipboards = g_slist_prepend (clipboards, clipboard);
g_object_set_data (G_OBJECT (display), I_("gtk-clipboard-list"), clipboards);
g_signal_connect (display, "closed",
G_CALLBACK (clipboard_display_closed), clipboard);
gdk_display_request_selection_notification (display, selection);
}
return clipboard;
}
static void
gtk_clipboard_owner_change (GtkClipboard *clipboard,
GdkEventOwnerChange *event)
{
if (clipboard->n_cached_targets != -1)
{
clipboard->n_cached_targets = -1;
g_free (clipboard->cached_targets);
}
}
gboolean
gtk_clipboard_wait_is_target_available (GtkClipboard *clipboard,
GdkAtom target)
{
GdkAtom *targets;
gint i, n_targets;
gboolean retval = FALSE;
if (!gtk_clipboard_wait_for_targets (clipboard, &targets, &n_targets))
return FALSE;
for (i = 0; i < n_targets; i++)
{
if (targets[i] == target)
{
retval = TRUE;
break;
}
}
g_free (targets);
return retval;
}
void
_gtk_clipboard_handle_event (GdkEventOwnerChange *event)
{
}
void
gtk_clipboard_set_can_store (GtkClipboard *clipboard,
const GtkTargetEntry *targets,
gint n_targets)
{
/* FIXME: Implement */
}
void
gtk_clipboard_store (GtkClipboard *clipboard)
{
int i;
int n_targets = 0;
GtkTargetEntry *targets;
g_return_if_fail (GTK_IS_CLIPBOARD (clipboard));
if (!clipboard->target_list || !clipboard->get_func)
return;
/* We simply store all targets into the OS X clipboard. We should be
* using the functions gdk_display_supports_clipboard_persistence() and
* gdk_display_store_clipboard(), but since for OS X the clipboard support
* was implemented in GTK+ and not through GdkSelections, we do it this
* way. Doing this properly could be worthwhile to implement in the future.
*/
targets = gtk_target_table_new_from_list (clipboard->target_list,
&n_targets);
for (i = 0; i < n_targets; i++)
{
GtkSelectionData selection_data;
/* in each loop iteration, check if the content is still
* there, because calling get_func() can do anything to
* the clipboard
*/
if (!clipboard->target_list || !clipboard->get_func)
break;
memset (&selection_data, 0, sizeof (GtkSelectionData));
selection_data.selection = clipboard->selection;
selection_data.target = gdk_atom_intern_static_string (targets[i].target);
selection_data.display = gdk_display_get_default ();
selection_data.length = -1;
clipboard->get_func (clipboard, &selection_data,
targets[i].info, clipboard->user_data);
if (selection_data.length >= 0)
_gtk_quartz_set_selection_data_for_pasteboard (clipboard->pasteboard,
&selection_data);
g_free (selection_data.data);
}
if (targets)
gtk_target_table_free (targets, n_targets);
}
void
_gtk_clipboard_store_all (void)
{
GtkClipboard *clipboard;
GSList *displays, *list;
displays = gdk_display_manager_list_displays (gdk_display_manager_get ());
list = displays;
while (list)
{
GdkDisplay *display = list->data;
clipboard = clipboard_peek (display, GDK_SELECTION_CLIPBOARD, TRUE);
if (clipboard)
gtk_clipboard_store (clipboard);
list = list->next;
}
g_slist_free (displays);
}
#define __GTK_CLIPBOARD_C__
#include "gtkaliasdef.c"
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