forked from AuroraMiddleware/gtk
1042 lines
38 KiB
C
1042 lines
38 KiB
C
/* GIO - GLib Output, Output and Streaming Library
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*
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* Copyright (C) 2017 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Benjamin Otte <otte@gnome.org>
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* Christian Kellner <gicmo@gnome.org>
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*/
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#include "config.h"
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#include "gdkselectionoutputstream-x11.h"
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#include "gdkclipboard-x11.h"
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#include "gdkdisplay-x11.h"
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#include <glib/gi18n-lib.h>
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#include "gdktextlistconverter-x11.h"
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#include "gdkx11display.h"
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#include "gdkx11property.h"
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#include "gdkx11surface.h"
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typedef struct _GdkX11PendingSelectionNotify GdkX11PendingSelectionNotify;
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typedef struct _GdkX11SelectionOutputStreamPrivate GdkX11SelectionOutputStreamPrivate;
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struct _GdkX11SelectionOutputStreamPrivate {
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GdkDisplay *display;
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GdkX11PendingSelectionNotify *notify;
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Window xwindow;
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char *selection;
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Atom xselection;
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char *target;
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Atom xtarget;
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char *property;
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Atom xproperty;
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char *type;
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Atom xtype;
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int format;
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gulong timestamp;
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GMutex mutex;
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GCond cond;
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GByteArray *data;
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guint flush_requested : 1;
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GTask *pending_task;
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guint incr : 1;
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guint sent_end_of_stream : 1;
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guint delete_pending : 1; /* owns a reference */
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};
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struct _GdkX11PendingSelectionNotify
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{
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gsize n_pending;
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XSelectionEvent xevent;
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};
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G_DEFINE_TYPE_WITH_PRIVATE (GdkX11SelectionOutputStream, gdk_x11_selection_output_stream, G_TYPE_OUTPUT_STREAM);
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static GdkX11PendingSelectionNotify *
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gdk_x11_pending_selection_notify_new (Window window,
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Atom selection,
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Atom target,
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Atom property,
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Time timestamp)
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{
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GdkX11PendingSelectionNotify *pending;
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pending = g_slice_new0 (GdkX11PendingSelectionNotify);
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pending->n_pending = 1;
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pending->xevent.type = SelectionNotify;
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pending->xevent.serial = 0;
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pending->xevent.send_event = True;
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pending->xevent.requestor = window;
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pending->xevent.selection = selection;
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pending->xevent.target = target;
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pending->xevent.property = property;
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pending->xevent.time = timestamp;
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return pending;
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}
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static void
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gdk_x11_pending_selection_notify_free (GdkX11PendingSelectionNotify *notify)
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{
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g_slice_free (GdkX11PendingSelectionNotify, notify);
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}
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static void
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gdk_x11_pending_selection_notify_require (GdkX11PendingSelectionNotify *notify,
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guint n_sends)
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{
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notify->n_pending += n_sends;
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}
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static void
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gdk_x11_pending_selection_notify_send (GdkX11PendingSelectionNotify *notify,
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GdkDisplay *display,
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gboolean success)
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{
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Display *xdisplay;
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int error;
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notify->n_pending--;
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if (notify->n_pending)
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{
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GDK_DISPLAY_DEBUG (display, SELECTION,
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"%s:%s: not sending SelectionNotify yet, %zu streams still pending",
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gdk_x11_get_xatom_name_for_display (display, notify->xevent.selection),
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gdk_x11_get_xatom_name_for_display (display, notify->xevent.target),
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notify->n_pending);
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return;
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}
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GDK_DISPLAY_DEBUG (display, SELECTION,
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"%s:%s: sending SelectionNotify reporting %s",
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gdk_x11_get_xatom_name_for_display (display, notify->xevent.selection),
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gdk_x11_get_xatom_name_for_display (display, notify->xevent.target),
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success ? "success" : "failure");
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if (!success)
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notify->xevent.property = None;
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xdisplay = gdk_x11_display_get_xdisplay (display);
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gdk_x11_display_error_trap_push (display);
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if (XSendEvent (xdisplay, notify->xevent.requestor, False, NoEventMask, (XEvent*) ¬ify->xevent) == 0)
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{
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GDK_DISPLAY_DEBUG (display, SELECTION,
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"%s:%s: failed to XSendEvent()",
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gdk_x11_get_xatom_name_for_display (display, notify->xevent.selection),
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gdk_x11_get_xatom_name_for_display (display, notify->xevent.target));
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}
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XSync (xdisplay, False);
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error = gdk_x11_display_error_trap_pop (display);
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if (error != Success)
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{
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GDK_DISPLAY_DEBUG (display, SELECTION,
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"%s:%s: X error during write: %d",
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gdk_x11_get_xatom_name_for_display (display, notify->xevent.selection),
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gdk_x11_get_xatom_name_for_display (display, notify->xevent.target),
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error);
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}
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gdk_x11_pending_selection_notify_free (notify);
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}
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static gboolean
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gdk_x11_selection_output_stream_xevent (GdkDisplay *display,
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const XEvent *xevent,
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gpointer data);
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static gboolean
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gdk_x11_selection_output_stream_can_flush (GdkX11SelectionOutputStream *stream)
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{
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GdkX11SelectionOutputStreamPrivate *priv = gdk_x11_selection_output_stream_get_instance_private (stream);
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if (priv->delete_pending)
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return FALSE;
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return TRUE;
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}
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static gboolean
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gdk_x11_selection_output_stream_needs_flush_unlocked (GdkX11SelectionOutputStream *stream)
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{
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GdkX11SelectionOutputStreamPrivate *priv = gdk_x11_selection_output_stream_get_instance_private (stream);
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if (priv->sent_end_of_stream)
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return FALSE;
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if (g_output_stream_is_closing (G_OUTPUT_STREAM (stream)) ||
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g_output_stream_is_closed (G_OUTPUT_STREAM (stream)))
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return TRUE;
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if (priv->data->len == 0 && priv->notify == NULL)
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return FALSE;
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if (priv->flush_requested)
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return TRUE;
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return priv->data->len >= gdk_x11_display_get_max_request_size (priv->display);
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}
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static gboolean
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gdk_x11_selection_output_stream_needs_flush (GdkX11SelectionOutputStream *stream)
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{
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GdkX11SelectionOutputStreamPrivate *priv = gdk_x11_selection_output_stream_get_instance_private (stream);
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gboolean result;
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g_mutex_lock (&priv->mutex);
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result = gdk_x11_selection_output_stream_needs_flush_unlocked (stream);
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g_mutex_unlock (&priv->mutex);
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return result;
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}
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static gsize
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get_element_size (int format)
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{
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switch (format)
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{
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case 8:
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return 1;
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case 16:
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return sizeof (short);
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case 32:
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return sizeof (long);
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default:
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g_warning ("Unknown format %u", format);
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return 1;
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}
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}
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static void
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gdk_x11_selection_output_stream_perform_flush (GdkX11SelectionOutputStream *stream)
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{
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GdkX11SelectionOutputStreamPrivate *priv = gdk_x11_selection_output_stream_get_instance_private (stream);
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Display *xdisplay;
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gsize element_size, n_elements;
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int error;
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g_assert (!priv->delete_pending);
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xdisplay = gdk_x11_display_get_xdisplay (priv->display);
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/* We operate on a foreign window, better guard against catastrophe */
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gdk_x11_display_error_trap_push (priv->display);
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g_mutex_lock (&priv->mutex);
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element_size = get_element_size (priv->format);
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n_elements = priv->data->len / element_size;
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if (priv->notify && !g_output_stream_is_closing (G_OUTPUT_STREAM (stream)))
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{
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XWindowAttributes attrs;
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priv->incr = TRUE;
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GDK_DISPLAY_DEBUG (priv->display, SELECTION,
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"%s:%s: initiating INCR transfer",
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priv->selection, priv->target);
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XGetWindowAttributes (xdisplay,
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priv->xwindow,
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&attrs);
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if (!(attrs.your_event_mask & PropertyChangeMask))
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{
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XSelectInput (xdisplay, priv->xwindow, attrs.your_event_mask | PropertyChangeMask);
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}
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XChangeProperty (GDK_DISPLAY_XDISPLAY (priv->display),
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priv->xwindow,
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priv->xproperty,
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gdk_x11_get_xatom_by_name_for_display (priv->display, "INCR"),
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32,
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PropModeReplace,
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(guchar *) &(long) { n_elements },
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1);
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}
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else
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{
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XChangeProperty (GDK_DISPLAY_XDISPLAY (priv->display),
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priv->xwindow,
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priv->xproperty,
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priv->xtype,
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priv->format,
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PropModeReplace,
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priv->data->data,
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n_elements);
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GDK_DISPLAY_DEBUG (priv->display, SELECTION,
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"%s:%s: wrote %zu/%u bytes",
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priv->selection, priv->target, n_elements * element_size, priv->data->len);
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g_byte_array_remove_range (priv->data, 0, n_elements * element_size);
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if (priv->data->len < element_size)
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priv->flush_requested = FALSE;
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if (!priv->incr || n_elements == 0)
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priv->sent_end_of_stream = TRUE;
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}
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if (priv->notify)
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{
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gdk_x11_pending_selection_notify_send (priv->notify, priv->display, TRUE);
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priv->notify = NULL;
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}
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g_object_ref (stream);
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priv->delete_pending = TRUE;
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g_cond_broadcast (&priv->cond);
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g_mutex_unlock (&priv->mutex);
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/* XXX: handle failure here and report EPIPE for future operations on the stream? */
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error = gdk_x11_display_error_trap_pop (priv->display);
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if (error != Success)
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{
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GDK_DISPLAY_DEBUG (priv->display, SELECTION,
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"%s:%s: X error during write: %d",
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priv->selection, priv->target, error);
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}
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if (priv->pending_task)
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{
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g_task_return_int (priv->pending_task, GPOINTER_TO_SIZE (g_task_get_task_data (priv->pending_task)));
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g_object_unref (priv->pending_task);
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priv->pending_task = NULL;
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}
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}
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static gboolean
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gdk_x11_selection_output_stream_invoke_flush (gpointer data)
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{
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GdkX11SelectionOutputStream *stream = GDK_X11_SELECTION_OUTPUT_STREAM (data);
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if (gdk_x11_selection_output_stream_needs_flush (stream) &&
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gdk_x11_selection_output_stream_can_flush (stream))
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gdk_x11_selection_output_stream_perform_flush (stream);
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return G_SOURCE_REMOVE;
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}
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static gssize
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gdk_x11_selection_output_stream_write (GOutputStream *output_stream,
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const void *buffer,
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gsize count,
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GCancellable *cancellable,
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GError **error)
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{
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GdkX11SelectionOutputStream *stream = GDK_X11_SELECTION_OUTPUT_STREAM (output_stream);
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GdkX11SelectionOutputStreamPrivate *priv = gdk_x11_selection_output_stream_get_instance_private (stream);
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g_mutex_lock (&priv->mutex);
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g_byte_array_append (priv->data, buffer, count);
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GDK_DISPLAY_DEBUG (priv->display, SELECTION,
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"%s:%s: wrote %zu bytes, %u total now",
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priv->selection, priv->target, count, priv->data->len);
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g_mutex_unlock (&priv->mutex);
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g_main_context_invoke (NULL, gdk_x11_selection_output_stream_invoke_flush, stream);
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g_mutex_lock (&priv->mutex);
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if (gdk_x11_selection_output_stream_needs_flush_unlocked (stream))
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g_cond_wait (&priv->cond, &priv->mutex);
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g_mutex_unlock (&priv->mutex);
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return count;
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}
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static void
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gdk_x11_selection_output_stream_write_async (GOutputStream *output_stream,
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const void *buffer,
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gsize count,
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int io_priority,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data)
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{
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GdkX11SelectionOutputStream *stream = GDK_X11_SELECTION_OUTPUT_STREAM (output_stream);
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GdkX11SelectionOutputStreamPrivate *priv = gdk_x11_selection_output_stream_get_instance_private (stream);
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GTask *task;
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task = g_task_new (stream, cancellable, callback, user_data);
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g_task_set_source_tag (task, gdk_x11_selection_output_stream_write_async);
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g_task_set_priority (task, io_priority);
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g_mutex_lock (&priv->mutex);
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g_byte_array_append (priv->data, buffer, count);
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GDK_DISPLAY_DEBUG (priv->display, SELECTION,
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"%s:%s: async wrote %zu bytes, %u total now",
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priv->selection, priv->target, count, priv->data->len);
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g_mutex_unlock (&priv->mutex);
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if (!gdk_x11_selection_output_stream_needs_flush (stream))
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{
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g_task_return_int (task, count);
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g_object_unref (task);
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return;
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}
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else if (!gdk_x11_selection_output_stream_can_flush (stream))
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{
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g_assert (priv->pending_task == NULL);
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priv->pending_task = task;
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g_task_set_task_data (task, GSIZE_TO_POINTER (count), NULL);
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return;
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}
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else
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{
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gdk_x11_selection_output_stream_perform_flush (stream);
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g_task_return_int (task, count);
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g_object_unref (task);
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return;
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}
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}
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static gssize
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gdk_x11_selection_output_stream_write_finish (GOutputStream *stream,
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GAsyncResult *result,
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GError **error)
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{
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g_return_val_if_fail (g_task_is_valid (result, stream), -1);
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g_return_val_if_fail (g_task_get_source_tag (G_TASK (result)) == gdk_x11_selection_output_stream_write_async, -1);
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return g_task_propagate_int (G_TASK (result), error);
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}
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static gboolean
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gdk_x11_selection_output_request_flush (GdkX11SelectionOutputStream *stream)
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{
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GdkX11SelectionOutputStreamPrivate *priv = gdk_x11_selection_output_stream_get_instance_private (stream);
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gboolean needs_flush;
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g_mutex_lock (&priv->mutex);
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if (priv->data->len >= get_element_size (priv->format))
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priv->flush_requested = TRUE;
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needs_flush = gdk_x11_selection_output_stream_needs_flush_unlocked (stream);
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g_mutex_unlock (&priv->mutex);
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GDK_DISPLAY_DEBUG (priv->display, SELECTION,
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"%s:%s: requested flush%s",
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priv->selection, priv->target, needs_flush ?"" : ", but not needed");
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return needs_flush;
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}
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static gboolean
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gdk_x11_selection_output_stream_flush (GOutputStream *output_stream,
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GCancellable *cancellable,
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GError **error)
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{
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GdkX11SelectionOutputStream *stream = GDK_X11_SELECTION_OUTPUT_STREAM (output_stream);
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GdkX11SelectionOutputStreamPrivate *priv = gdk_x11_selection_output_stream_get_instance_private (stream);
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if (!gdk_x11_selection_output_request_flush (stream))
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return TRUE;
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g_main_context_invoke (NULL, gdk_x11_selection_output_stream_invoke_flush, stream);
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g_mutex_lock (&priv->mutex);
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if (gdk_x11_selection_output_stream_needs_flush_unlocked (stream))
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g_cond_wait (&priv->cond, &priv->mutex);
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g_mutex_unlock (&priv->mutex);
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return TRUE;
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}
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static void
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gdk_x11_selection_output_stream_flush_async (GOutputStream *output_stream,
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int io_priority,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data)
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{
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GdkX11SelectionOutputStream *stream = GDK_X11_SELECTION_OUTPUT_STREAM (output_stream);
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GdkX11SelectionOutputStreamPrivate *priv = gdk_x11_selection_output_stream_get_instance_private (stream);
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GTask *task;
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task = g_task_new (stream, cancellable, callback, user_data);
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g_task_set_source_tag (task, gdk_x11_selection_output_stream_flush_async);
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g_task_set_priority (task, io_priority);
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if (!gdk_x11_selection_output_stream_can_flush (stream))
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{
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if (gdk_x11_selection_output_request_flush (stream))
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{
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g_assert (priv->pending_task == NULL);
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priv->pending_task = task;
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return;
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}
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else
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{
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g_task_return_boolean (task, TRUE);
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g_object_unref (task);
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return;
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}
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}
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gdk_x11_selection_output_stream_perform_flush (stream);
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g_task_return_boolean (task, TRUE);
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g_object_unref (task);
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return;
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}
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|
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static gboolean
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gdk_x11_selection_output_stream_flush_finish (GOutputStream *stream,
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GAsyncResult *result,
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GError **error)
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{
|
|
g_return_val_if_fail (g_task_is_valid (result, stream), FALSE);
|
|
g_return_val_if_fail (g_async_result_is_tagged (result, gdk_x11_selection_output_stream_flush_async), FALSE);
|
|
|
|
return g_task_propagate_boolean (G_TASK (result), error);
|
|
}
|
|
|
|
static void
|
|
gdk_x11_selection_output_stream_finalize (GObject *object)
|
|
{
|
|
GdkX11SelectionOutputStream *stream = GDK_X11_SELECTION_OUTPUT_STREAM (object);
|
|
GdkX11SelectionOutputStreamPrivate *priv = gdk_x11_selection_output_stream_get_instance_private (stream);
|
|
|
|
/* not sending a notify is terrible */
|
|
g_assert (priv->notify == NULL);
|
|
|
|
GDK_DISPLAY_DEBUG (priv->display, SELECTION,
|
|
"%s:%s: finalizing",
|
|
priv->selection, priv->target);
|
|
GDK_X11_DISPLAY (priv->display)->streams = g_slist_remove (GDK_X11_DISPLAY (priv->display)->streams, stream);
|
|
g_signal_handlers_disconnect_by_func (priv->display,
|
|
gdk_x11_selection_output_stream_xevent,
|
|
stream);
|
|
|
|
g_byte_array_unref (priv->data);
|
|
g_cond_clear (&priv->cond);
|
|
g_mutex_clear (&priv->mutex);
|
|
|
|
g_free (priv->selection);
|
|
g_free (priv->target);
|
|
g_free (priv->property);
|
|
g_free (priv->type);
|
|
|
|
G_OBJECT_CLASS (gdk_x11_selection_output_stream_parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
gdk_x11_selection_output_stream_class_init (GdkX11SelectionOutputStreamClass *klass)
|
|
{
|
|
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
|
GOutputStreamClass *output_stream_class = G_OUTPUT_STREAM_CLASS (klass);
|
|
|
|
object_class->finalize = gdk_x11_selection_output_stream_finalize;
|
|
|
|
output_stream_class->write_fn = gdk_x11_selection_output_stream_write;
|
|
output_stream_class->flush = gdk_x11_selection_output_stream_flush;
|
|
|
|
output_stream_class->write_async = gdk_x11_selection_output_stream_write_async;
|
|
output_stream_class->write_finish = gdk_x11_selection_output_stream_write_finish;
|
|
output_stream_class->flush_async = gdk_x11_selection_output_stream_flush_async;
|
|
output_stream_class->flush_finish = gdk_x11_selection_output_stream_flush_finish;
|
|
}
|
|
|
|
static void
|
|
gdk_x11_selection_output_stream_init (GdkX11SelectionOutputStream *stream)
|
|
{
|
|
GdkX11SelectionOutputStreamPrivate *priv = gdk_x11_selection_output_stream_get_instance_private (stream);
|
|
|
|
g_mutex_init (&priv->mutex);
|
|
g_cond_init (&priv->cond);
|
|
priv->data = g_byte_array_new ();
|
|
}
|
|
|
|
static gboolean
|
|
gdk_x11_selection_output_stream_xevent (GdkDisplay *display,
|
|
const XEvent *xevent,
|
|
gpointer data)
|
|
{
|
|
GdkX11SelectionOutputStream *stream = GDK_X11_SELECTION_OUTPUT_STREAM (data);
|
|
GdkX11SelectionOutputStreamPrivate *priv = gdk_x11_selection_output_stream_get_instance_private (stream);
|
|
Display *xdisplay;
|
|
|
|
xdisplay = gdk_x11_display_get_xdisplay (priv->display);
|
|
|
|
if (xevent->xany.display != xdisplay ||
|
|
xevent->xany.window != priv->xwindow)
|
|
return FALSE;
|
|
|
|
switch (xevent->type)
|
|
{
|
|
case PropertyNotify:
|
|
if (!priv->incr ||
|
|
xevent->xproperty.atom != priv->xproperty ||
|
|
xevent->xproperty.state != PropertyDelete)
|
|
return FALSE;
|
|
|
|
GDK_DISPLAY_DEBUG (display, SELECTION,
|
|
"%s:%s: got PropertyNotify Delete during INCR",
|
|
priv->selection, priv->target);
|
|
priv->delete_pending = FALSE;
|
|
if (gdk_x11_selection_output_stream_needs_flush (stream) &&
|
|
gdk_x11_selection_output_stream_can_flush (stream))
|
|
gdk_x11_selection_output_stream_perform_flush (stream);
|
|
g_object_unref (stream); /* from unsetting the delete_pending */
|
|
return FALSE;
|
|
|
|
default:
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static GOutputStream *
|
|
gdk_x11_selection_output_stream_new (GdkDisplay *display,
|
|
GdkX11PendingSelectionNotify *notify,
|
|
Window window,
|
|
const char *selection,
|
|
const char *target,
|
|
const char *property,
|
|
const char *type,
|
|
int format,
|
|
gulong timestamp)
|
|
{
|
|
GdkX11SelectionOutputStream *stream;
|
|
GdkX11SelectionOutputStreamPrivate *priv;
|
|
|
|
stream = g_object_new (GDK_TYPE_X11_SELECTION_OUTPUT_STREAM, NULL);
|
|
priv = gdk_x11_selection_output_stream_get_instance_private (stream);
|
|
|
|
priv->display = display;
|
|
GDK_X11_DISPLAY (display)->streams = g_slist_prepend (GDK_X11_DISPLAY (display)->streams, stream);
|
|
priv->notify = notify;
|
|
priv->xwindow = window;
|
|
priv->selection = g_strdup (selection);
|
|
priv->xselection = gdk_x11_get_xatom_by_name_for_display (display, priv->selection);
|
|
priv->target = g_strdup (target);
|
|
priv->xtarget = gdk_x11_get_xatom_by_name_for_display (display, priv->target);
|
|
priv->property = g_strdup (property);
|
|
priv->xproperty = gdk_x11_get_xatom_by_name_for_display (display, priv->property);
|
|
priv->type = g_strdup (type);
|
|
priv->xtype = gdk_x11_get_xatom_by_name_for_display (display, priv->type);
|
|
priv->format = format;
|
|
priv->timestamp = timestamp;
|
|
|
|
g_signal_connect (display,
|
|
"xevent",
|
|
G_CALLBACK (gdk_x11_selection_output_stream_xevent),
|
|
stream);
|
|
|
|
return G_OUTPUT_STREAM (stream);
|
|
}
|
|
|
|
static void
|
|
print_atoms (GdkDisplay *display,
|
|
const char *selection,
|
|
const char *prefix,
|
|
const Atom *atoms,
|
|
gsize n_atoms)
|
|
{
|
|
#ifdef G_ENABLE_DEBUG
|
|
if (GDK_DISPLAY_DEBUG_CHECK (display, CLIPBOARD))
|
|
{
|
|
GString *str;
|
|
|
|
str = g_string_new ("");
|
|
g_string_append_printf (str, "%s: %s [ ", selection, prefix);
|
|
for (gsize i = 0; i < n_atoms; i++)
|
|
g_string_append_printf (str, "%s%s", i > 0 ? ", " : "", gdk_x11_get_xatom_name_for_display (display , atoms[i]));
|
|
g_string_append (str, " ]");
|
|
gdk_debug_message ("%s", str->str);
|
|
g_string_free (str, TRUE);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
handle_targets_done (GObject *stream,
|
|
GAsyncResult *result,
|
|
gpointer user_data)
|
|
{
|
|
GError *error = NULL;
|
|
gsize bytes_written;
|
|
|
|
if (!g_output_stream_write_all_finish (G_OUTPUT_STREAM (stream), result, &bytes_written, &error))
|
|
{
|
|
GDK_DEBUG (CLIPBOARD, "---: failed to send targets after %zu bytes: %s",
|
|
bytes_written, error->message);
|
|
g_error_free (error);
|
|
}
|
|
|
|
g_free (user_data);
|
|
}
|
|
|
|
static void
|
|
handle_targets (GOutputStream *stream,
|
|
GdkDisplay *display,
|
|
GdkContentFormats *formats,
|
|
const char *target,
|
|
const char *encoding,
|
|
int format,
|
|
gulong timestamp,
|
|
GdkX11SelectionOutputHandler handler,
|
|
gpointer user_data)
|
|
{
|
|
Atom *atoms;
|
|
gsize n_atoms;
|
|
|
|
atoms = gdk_x11_clipboard_formats_to_atoms (display,
|
|
TRUE,
|
|
formats,
|
|
&n_atoms);
|
|
print_atoms (display, "---", "sending targets", atoms, n_atoms);
|
|
g_output_stream_write_all_async (stream,
|
|
atoms,
|
|
n_atoms * sizeof (Atom),
|
|
G_PRIORITY_DEFAULT,
|
|
NULL,
|
|
handle_targets_done,
|
|
atoms);
|
|
g_object_unref (stream);
|
|
}
|
|
|
|
static void
|
|
handle_timestamp_done (GObject *stream,
|
|
GAsyncResult *result,
|
|
gpointer user_data)
|
|
{
|
|
GError *error = NULL;
|
|
gsize bytes_written;
|
|
|
|
if (!g_output_stream_write_all_finish (G_OUTPUT_STREAM (stream), result, &bytes_written, &error))
|
|
{
|
|
GDK_DEBUG (CLIPBOARD, "---: failed to send timestamp after %zu bytes: %s",
|
|
bytes_written, error->message);
|
|
g_error_free (error);
|
|
}
|
|
|
|
g_slice_free (gulong, user_data);
|
|
}
|
|
|
|
static void
|
|
handle_timestamp (GOutputStream *stream,
|
|
GdkDisplay *display,
|
|
GdkContentFormats *formats,
|
|
const char *target,
|
|
const char *encoding,
|
|
int format,
|
|
gulong timestamp,
|
|
GdkX11SelectionOutputHandler handler,
|
|
gpointer user_data)
|
|
{
|
|
gulong *time_;
|
|
|
|
time_ = g_slice_new (gulong);
|
|
*time_ = timestamp;
|
|
|
|
g_output_stream_write_all_async (stream,
|
|
time_,
|
|
sizeof (gulong),
|
|
G_PRIORITY_DEFAULT,
|
|
NULL,
|
|
handle_timestamp_done,
|
|
time_);
|
|
g_object_unref (stream);
|
|
}
|
|
|
|
static void
|
|
handle_save_targets (GOutputStream *stream,
|
|
GdkDisplay *display,
|
|
GdkContentFormats *formats,
|
|
const char *target,
|
|
const char *encoding,
|
|
int format,
|
|
gulong timestamp,
|
|
GdkX11SelectionOutputHandler handler,
|
|
gpointer user_data)
|
|
{
|
|
/* Don't do anything */
|
|
|
|
g_object_unref (stream);
|
|
}
|
|
|
|
static void
|
|
handle_text_list (GOutputStream *stream,
|
|
GdkDisplay *display,
|
|
GdkContentFormats *formats,
|
|
const char *target,
|
|
const char *encoding,
|
|
int format,
|
|
gulong timestamp,
|
|
GdkX11SelectionOutputHandler handler,
|
|
gpointer user_data)
|
|
{
|
|
GOutputStream *converter_stream;
|
|
GConverter *converter;
|
|
|
|
converter = gdk_x11_text_list_converter_to_utf8_new (display,
|
|
encoding,
|
|
format);
|
|
converter_stream = g_converter_output_stream_new (stream, converter);
|
|
|
|
g_object_unref (converter);
|
|
g_object_unref (stream);
|
|
|
|
handler (converter_stream, gdk_intern_mime_type ("text/plain;charset=utf-8"), user_data);
|
|
}
|
|
|
|
static void
|
|
handle_utf8 (GOutputStream *stream,
|
|
GdkDisplay *display,
|
|
GdkContentFormats *formats,
|
|
const char *target,
|
|
const char *encoding,
|
|
int format,
|
|
gulong timestamp,
|
|
GdkX11SelectionOutputHandler handler,
|
|
gpointer user_data)
|
|
{
|
|
handler (stream, gdk_intern_mime_type ("text/plain;charset=utf-8"), user_data);
|
|
}
|
|
|
|
typedef void (* MimeTypeHandleFunc) (GOutputStream *, GdkDisplay *, GdkContentFormats *, const char *, const char *, int, gulong, GdkX11SelectionOutputHandler, gpointer);
|
|
|
|
static const struct {
|
|
const char *x_target;
|
|
const char *mime_type;
|
|
const char *type;
|
|
int format;
|
|
MimeTypeHandleFunc handler;
|
|
} special_targets[] = {
|
|
{ "UTF8_STRING", "text/plain;charset=utf-8", "UTF8_STRING", 8, handle_utf8 },
|
|
{ "COMPOUND_TEXT", "text/plain;charset=utf-8", "COMPOUND_TEXT", 8, handle_text_list },
|
|
{ "TEXT", "text/plain;charset=utf-8", "STRING", 8, handle_text_list },
|
|
{ "STRING", "text/plain;charset=utf-8", "STRING", 8, handle_text_list },
|
|
{ "TARGETS", NULL, "ATOM", 32, handle_targets },
|
|
{ "TIMESTAMP", NULL, "INTEGER", 32, handle_timestamp },
|
|
{ "SAVE_TARGETS", NULL, "NULL", 32, handle_save_targets }
|
|
};
|
|
|
|
static gboolean
|
|
gdk_x11_selection_output_streams_request (GdkDisplay *display,
|
|
GdkX11PendingSelectionNotify *notify,
|
|
GdkContentFormats *formats,
|
|
Window requestor,
|
|
Atom xselection,
|
|
Atom xtarget,
|
|
Atom xproperty,
|
|
gulong timestamp,
|
|
GdkX11SelectionOutputHandler handler,
|
|
gpointer user_data)
|
|
{
|
|
const char *mime_type, *selection, *target, *property;
|
|
|
|
selection = gdk_x11_get_xatom_name_for_display (display, xselection);
|
|
target = gdk_x11_get_xatom_name_for_display (display, xtarget);
|
|
property = gdk_x11_get_xatom_name_for_display (display, xproperty);
|
|
mime_type = gdk_intern_mime_type (target);
|
|
|
|
if (mime_type)
|
|
{
|
|
if (gdk_content_formats_contain_mime_type (formats, mime_type))
|
|
{
|
|
GOutputStream *stream;
|
|
|
|
stream = gdk_x11_selection_output_stream_new (display,
|
|
notify,
|
|
requestor,
|
|
selection,
|
|
target,
|
|
property,
|
|
target,
|
|
8,
|
|
timestamp);
|
|
handler (stream, mime_type, user_data);
|
|
return TRUE;
|
|
}
|
|
}
|
|
else if (g_str_equal (target, "MULTIPLE"))
|
|
{
|
|
gulong n_atoms;
|
|
gulong nbytes;
|
|
Atom prop_type;
|
|
int prop_format;
|
|
Atom *atoms = NULL;
|
|
int error;
|
|
|
|
error = XGetWindowProperty (gdk_x11_display_get_xdisplay (display),
|
|
requestor,
|
|
xproperty,
|
|
0, 0x1FFFFFFF, False,
|
|
AnyPropertyType,
|
|
&prop_type, &prop_format,
|
|
&n_atoms, &nbytes, (guchar **) &atoms);
|
|
if (error != Success)
|
|
{
|
|
GDK_DISPLAY_DEBUG (display, SELECTION,
|
|
"%s: XGetProperty() during MULTIPLE failed with %d",
|
|
selection, error);
|
|
}
|
|
else if (prop_format != 32 ||
|
|
prop_type != gdk_x11_get_xatom_by_name_for_display (display, "ATOM_PAIR"))
|
|
{
|
|
GDK_DISPLAY_DEBUG (display, SELECTION,
|
|
"%s: XGetProperty() type/format should be ATOM_PAIR/32 but is %s/%d",
|
|
selection, gdk_x11_get_xatom_name_for_display (display, prop_type), prop_format);
|
|
}
|
|
else if (n_atoms < 2)
|
|
{
|
|
print_atoms (display, selection, "ignoring MULTIPLE request with too little elements", atoms, n_atoms);
|
|
}
|
|
else
|
|
{
|
|
gulong i;
|
|
|
|
print_atoms (display, selection, "MULTIPLE request", atoms, n_atoms);
|
|
if (n_atoms % 2)
|
|
{
|
|
GDK_DISPLAY_DEBUG (display, SELECTION,
|
|
"%s: Number of atoms is uneven at %lu, ignoring last element",
|
|
selection, n_atoms);
|
|
n_atoms &= ~1;
|
|
}
|
|
|
|
gdk_x11_pending_selection_notify_require (notify, n_atoms / 2);
|
|
|
|
for (i = 0; i < n_atoms / 2; i++)
|
|
{
|
|
gboolean success;
|
|
|
|
if (atoms[2 * i] == None || atoms[2 * i + 1] == None)
|
|
{
|
|
success = FALSE;
|
|
GDK_DISPLAY_DEBUG (display, SELECTION,
|
|
"%s: None not allowed as atom in MULTIPLE request",
|
|
selection);
|
|
gdk_x11_pending_selection_notify_send (notify, display, FALSE);
|
|
}
|
|
else if (atoms[2 * i] == gdk_x11_get_xatom_by_name_for_display (display, "MULTIPLE"))
|
|
{
|
|
success = FALSE;
|
|
GDK_DISPLAY_DEBUG (display, SELECTION,
|
|
"%s: MULTIPLE as target in MULTIPLE request would cause recursion",
|
|
selection);
|
|
gdk_x11_pending_selection_notify_send (notify, display, FALSE);
|
|
}
|
|
else
|
|
{
|
|
success = gdk_x11_selection_output_streams_request (display,
|
|
notify,
|
|
formats,
|
|
requestor,
|
|
xselection,
|
|
atoms[2 * i],
|
|
atoms[2 * i + 1],
|
|
timestamp,
|
|
handler,
|
|
user_data);
|
|
}
|
|
|
|
if (!success)
|
|
atoms[2 * i + 1] = None;
|
|
}
|
|
}
|
|
|
|
XChangeProperty (gdk_x11_display_get_xdisplay (display),
|
|
requestor,
|
|
xproperty,
|
|
prop_type, 32,
|
|
PropModeReplace, (guchar *)atoms, n_atoms);
|
|
|
|
if (atoms)
|
|
XFree (atoms);
|
|
|
|
gdk_x11_pending_selection_notify_send (notify, display, TRUE);
|
|
return TRUE;
|
|
}
|
|
else
|
|
{
|
|
gsize i;
|
|
|
|
for (i = 0; i < G_N_ELEMENTS (special_targets); i++)
|
|
{
|
|
if (g_str_equal (target, special_targets[i].x_target) &&
|
|
special_targets[i].handler)
|
|
{
|
|
GOutputStream *stream;
|
|
|
|
if (special_targets[i].mime_type)
|
|
mime_type = gdk_intern_mime_type (special_targets[i].mime_type);
|
|
stream = gdk_x11_selection_output_stream_new (display,
|
|
notify,
|
|
requestor,
|
|
selection,
|
|
target,
|
|
property,
|
|
special_targets[i].type,
|
|
special_targets[i].format,
|
|
timestamp);
|
|
special_targets[i].handler (stream,
|
|
display,
|
|
formats,
|
|
target,
|
|
special_targets[i].type,
|
|
special_targets[i].format,
|
|
timestamp,
|
|
handler,
|
|
user_data);
|
|
return TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
gdk_x11_pending_selection_notify_send (notify, display, FALSE);
|
|
return FALSE;
|
|
}
|
|
|
|
void
|
|
gdk_x11_selection_output_streams_create (GdkDisplay *display,
|
|
GdkContentFormats *formats,
|
|
Window requestor,
|
|
Atom selection,
|
|
Atom target,
|
|
Atom property,
|
|
gulong timestamp,
|
|
GdkX11SelectionOutputHandler handler,
|
|
gpointer user_data)
|
|
{
|
|
GdkX11PendingSelectionNotify *notify;
|
|
|
|
notify = gdk_x11_pending_selection_notify_new (requestor,
|
|
selection,
|
|
target,
|
|
property,
|
|
timestamp);
|
|
gdk_x11_selection_output_streams_request (display,
|
|
notify,
|
|
formats,
|
|
requestor,
|
|
selection,
|
|
target,
|
|
property,
|
|
timestamp,
|
|
handler,
|
|
user_data);
|
|
}
|