[mutter/wip/carlosg/clipboard-manager: 4/12] wayland: Add wayland MetaSelectionSource implementation
- From: Carlos Garnacho <carlosg src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [mutter/wip/carlosg/clipboard-manager: 4/12] wayland: Add wayland MetaSelectionSource implementation
- Date: Wed, 24 Apr 2019 09:03:17 +0000 (UTC)
commit 72898cf5916e491b1758a5e5ef9af0152a971899
Author: Carlos Garnacho <carlosg gnome org>
Date: Mon Nov 19 17:34:18 2018 +0100
wayland: Add wayland MetaSelectionSource implementation
This object represents a Wayland selection owner. In order to invert the
FD direction (we hand an output fd, but want an inpu fd), create an
intermediate pipe so we can then create a GInputStream on top of it.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/320
src/meson.build | 2 +
.../meta-selection-source-wayland-private.h | 46 +++++++
src/wayland/meta-selection-source-wayland.c | 148 +++++++++++++++++++++
3 files changed, 196 insertions(+)
---
diff --git a/src/meson.build b/src/meson.build
index c9c872cc3..b5e8835ab 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -454,6 +454,8 @@ if have_wayland
'wayland/meta-pointer-confinement-wayland.h',
'wayland/meta-pointer-lock-wayland.c',
'wayland/meta-pointer-lock-wayland.h',
+ 'wayland/meta-selection-source-wayland.c',
+ 'wayland/meta-selection-source-wayland-private.h',
'wayland/meta-wayland-actor-surface.c',
'wayland/meta-wayland-actor-surface.h',
'wayland/meta-wayland-buffer.c',
diff --git a/src/wayland/meta-selection-source-wayland-private.h
b/src/wayland/meta-selection-source-wayland-private.h
new file mode 100644
index 000000000..5976271cf
--- /dev/null
+++ b/src/wayland/meta-selection-source-wayland-private.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2018 Red Hat
+ *
+ * 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.
+ *
+ * Author: Carlos Garnacho <carlosg gnome org>
+ */
+
+#ifndef META_SELECTION_SOURCE_WAYLAND_H
+#define META_SELECTION_SOURCE_WAYLAND_H
+
+#include <wayland-server.h>
+
+#include "core/meta-selection-source.h"
+
+#define META_TYPE_SELECTION_SOURCE_WAYLAND (meta_selection_source_wayland_get_type ())
+
+G_DECLARE_FINAL_TYPE (MetaSelectionSourceWayland,
+ meta_selection_source_wayland,
+ META, SELECTION_SOURCE_WAYLAND,
+ MetaSelectionSource)
+
+typedef void (* MetaWaylandSendFunc) (struct wl_resource *resource,
+ const char *mimetype,
+ int fd);
+typedef void (* MetaWaylandCancelFunc) (struct wl_resource *resource);
+
+MetaSelectionSource * meta_selection_source_wayland_new (struct wl_resource *resource,
+ GList *mime_types,
+ MetaWaylandSendFunc send_func,
+ MetaWaylandCancelFunc cancel_func);
+
+#endif /* META_SELECTION_SOURCE_WAYLAND_H */
diff --git a/src/wayland/meta-selection-source-wayland.c b/src/wayland/meta-selection-source-wayland.c
new file mode 100644
index 000000000..c25189800
--- /dev/null
+++ b/src/wayland/meta-selection-source-wayland.c
@@ -0,0 +1,148 @@
+/*
+ * Copyright (C) 2018 Red Hat
+ *
+ * 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.
+ *
+ * Author: Carlos Garnacho <carlosg gnome org>
+ */
+
+#include "config.h"
+
+#include <glib-unix.h>
+#include <gio/gunixinputstream.h>
+
+#include "wayland/meta-selection-source-wayland-private.h"
+
+struct _MetaSelectionSourceWayland
+{
+ MetaSelectionSource parent_instance;
+ GList *mimetypes;
+ MetaWaylandSendFunc send_func;
+ MetaWaylandCancelFunc cancel_func;
+ struct wl_resource *resource;
+};
+
+G_DEFINE_TYPE (MetaSelectionSourceWayland, meta_selection_source_wayland,
+ META_TYPE_SELECTION_SOURCE)
+
+static void
+meta_selection_source_wayland_read_async (MetaSelectionSource *source,
+ const gchar *mimetype,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
+ MetaSelectionSourceWayland *source_wayland = META_SELECTION_SOURCE_WAYLAND (source);
+ GInputStream *stream;
+ GTask *task;
+ int pipe_fds[2];
+
+ if (!g_unix_open_pipe (pipe_fds, FD_CLOEXEC, NULL))
+ {
+ g_task_report_new_error (source, callback, user_data,
+ meta_selection_source_wayland_read_async,
+ G_IO_ERROR, G_IO_ERROR_FAILED,
+ "Could not open pipe to read wayland selection");
+ return;
+ }
+
+ if (!g_unix_set_fd_nonblocking (pipe_fds[0], TRUE, NULL) ||
+ !g_unix_set_fd_nonblocking (pipe_fds[1], TRUE, NULL))
+ {
+ g_task_report_new_error (source, callback, user_data,
+ meta_selection_source_wayland_read_async,
+ G_IO_ERROR, G_IO_ERROR_FAILED,
+ "Could not make pipe nonblocking");
+ close (pipe_fds[0]);
+ close (pipe_fds[1]);
+ return;
+ }
+
+ task = g_task_new (source, cancellable, callback, user_data);
+ g_task_set_source_tag (task, meta_selection_source_wayland_read_async);
+
+ stream = g_unix_input_stream_new (pipe_fds[0], TRUE);
+ source_wayland->send_func (source_wayland->resource, mimetype, pipe_fds[1]);
+ close (pipe_fds[1]);
+
+ g_task_return_pointer (task, stream, g_object_unref);
+ g_object_unref (task);
+}
+
+static GInputStream *
+meta_selection_source_wayland_read_finish (MetaSelectionSource *source,
+ GAsyncResult *result,
+ GError **error)
+{
+ g_return_val_if_fail (g_task_is_valid (result, source), FALSE);
+ g_return_val_if_fail (g_task_get_source_tag (G_TASK (result)) ==
+ meta_selection_source_wayland_read_async, FALSE);
+
+ return g_task_propagate_pointer (G_TASK (result), error);
+}
+
+static GList *
+meta_selection_source_wayland_get_mimetypes (MetaSelectionSource *source)
+{
+ MetaSelectionSourceWayland *source_wayland = META_SELECTION_SOURCE_WAYLAND (source);
+
+ return g_list_copy_deep (source_wayland->mimetypes,
+ (GCopyFunc) g_strdup, NULL);
+}
+
+static void
+meta_selection_source_wayland_deactivated (MetaSelectionSource *source)
+{
+ MetaSelectionSourceWayland *source_wayland =
+ META_SELECTION_SOURCE_WAYLAND (source);
+
+ source_wayland->cancel_func (source_wayland->resource);
+ META_SELECTION_SOURCE_CLASS (meta_selection_source_wayland_parent_class)->deactivated (source);
+}
+
+static void
+meta_selection_source_wayland_class_init (MetaSelectionSourceWaylandClass *klass)
+{
+ MetaSelectionSourceClass *source_class = META_SELECTION_SOURCE_CLASS (klass);
+
+ source_class->deactivated = meta_selection_source_wayland_deactivated;
+
+ source_class->read_async = meta_selection_source_wayland_read_async;
+ source_class->read_finish = meta_selection_source_wayland_read_finish;
+ source_class->get_mimetypes = meta_selection_source_wayland_get_mimetypes;
+}
+
+static void
+meta_selection_source_wayland_init (MetaSelectionSourceWayland *source)
+{
+}
+
+MetaSelectionSource *
+meta_selection_source_wayland_new (struct wl_resource *resource,
+ GList *mime_types,
+ MetaWaylandSendFunc send_func,
+ MetaWaylandCancelFunc cancel_func)
+{
+ MetaSelectionSourceWayland *source;
+
+ source = g_object_new (META_TYPE_SELECTION_SOURCE_WAYLAND, NULL);
+ source->mimetypes = g_list_copy_deep (mime_types, (GCopyFunc) g_strdup, NULL);
+ source->send_func = send_func;
+ source->cancel_func = cancel_func;
+ source->resource = resource;
+
+ return META_SELECTION_SOURCE (source);
+}
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