diff options
Diffstat (limited to 'subprojects/shew/src/shew-window-exporter.c')
| -rw-r--r-- | subprojects/shew/src/shew-window-exporter.c | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/subprojects/shew/src/shew-window-exporter.c b/subprojects/shew/src/shew-window-exporter.c new file mode 100644 index 0000000..f950682 --- /dev/null +++ b/subprojects/shew/src/shew-window-exporter.c @@ -0,0 +1,216 @@ +/* + * Copyright © 2020 Red Hat, Inc + * + * This program 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, see <http://www.gnu.org/licenses/>. + * + * Authors: + * Florian Müllner <fmuellner@gnome.org> + */ + +#include "shew-window-exporter.h" + +#ifdef GDK_WINDOWING_X11 +#include <gdk/gdkx.h> +#endif +#ifdef GDK_WINDOWING_WAYLAND +#include <gdk/gdkwayland.h> +#endif + +struct _ShewWindowExporter +{ + GObject parent; + + GtkWindow *window; +}; + +G_DEFINE_TYPE (ShewWindowExporter, shew_window_exporter, G_TYPE_OBJECT) + +enum +{ + PROP_0, + + PROP_WINDOW, +}; + +ShewWindowExporter * +shew_window_exporter_new (GtkWindow *window) +{ + return g_object_new (SHEW_TYPE_WINDOW_EXPORTER, + "window", window, + NULL); +} + +#ifdef GDK_WINDOWING_WAYLAND +static void +wayland_window_exported (GdkWindow *window, + const char *handle, + gpointer user_data) +{ + g_autoptr (GTask) task = user_data; + + g_task_return_pointer (task, g_strdup_printf ("wayland:%s", handle), g_free); +} +#endif + +void +shew_window_exporter_export (ShewWindowExporter *exporter, + GAsyncReadyCallback callback, + gpointer user_data) +{ + g_autoptr (GTask) task = NULL; + GtkWidget *widget; + + g_return_if_fail (SHEW_IS_WINDOW_EXPORTER (exporter)); + + if (exporter->window == NULL) + { + g_task_report_new_error (exporter, callback, user_data, + shew_window_exporter_export, + G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, + "No window to export"); + return; + } + + task = g_task_new (exporter, NULL, callback, user_data); + g_task_set_source_tag (task, shew_window_exporter_export); + + widget = GTK_WIDGET (exporter->window); + +#ifdef GDK_WINDOWING_X11 + if (GDK_IS_X11_DISPLAY (gtk_widget_get_display (widget))) + { + GdkWindow *w = gtk_widget_get_window (widget); + guint32 xid = (guint32) gdk_x11_window_get_xid (w); + + g_task_return_pointer (task, g_strdup_printf ("x11:%x", xid), g_free); + } +#endif + +#ifdef GDK_WINDOWING_WAYLAND + if (GDK_IS_WAYLAND_DISPLAY (gtk_widget_get_display (widget))) + { + GdkWindow *w = gtk_widget_get_window (widget); + gdk_wayland_window_export_handle (w, wayland_window_exported, + g_steal_pointer (&task), NULL); + } +#endif + + if (task != NULL && !g_task_get_completed (task)) + { + g_task_return_new_error (task, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, + "Unsupported windowing system"); + } +} + +char * +shew_window_exporter_export_finish (ShewWindowExporter *exporter, + GAsyncResult *result, + GError **error) +{ + g_return_val_if_fail (SHEW_IS_WINDOW_EXPORTER (exporter), NULL); + g_return_val_if_fail (g_async_result_is_tagged (result, shew_window_exporter_export), NULL); + + return g_task_propagate_pointer (G_TASK (result), error); +} + +void +shew_window_exporter_unexport (ShewWindowExporter *exporter) +{ + GtkWidget *widget; + + g_return_if_fail (SHEW_IS_WINDOW_EXPORTER (exporter)); + + widget = GTK_WIDGET (exporter->window); + +#ifdef GDK_WINDOWING_WAYLAND + if (GDK_IS_WAYLAND_DISPLAY (gtk_widget_get_display (widget))) + { + GdkWindow *w = gtk_widget_get_window (widget); + gdk_wayland_window_unexport_handle (w); + } +#endif +} + +static void +shew_window_exporter_dispose (GObject *object) +{ + ShewWindowExporter *exporter = SHEW_WINDOW_EXPORTER (object); + + g_clear_object (&exporter->window); + + G_OBJECT_CLASS (shew_window_exporter_parent_class)->dispose (object); +} + +static void +shew_window_exporter_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec) +{ + ShewWindowExporter *exporter = SHEW_WINDOW_EXPORTER (object); + + switch (prop_id) + { + case PROP_WINDOW: + g_set_object (&exporter->window, g_value_get_object (value)); + break; + + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + } +} + +static void +shew_window_exporter_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + ShewWindowExporter *exporter = SHEW_WINDOW_EXPORTER (object); + + switch (prop_id) + { + case PROP_WINDOW: + g_value_set_object (value, exporter->window); + break; + + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + } +} + +static void +shew_window_exporter_init (ShewWindowExporter *exporter) +{ +} + +static void +shew_window_exporter_class_init (ShewWindowExporterClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + + object_class->get_property = shew_window_exporter_get_property; + object_class->set_property = shew_window_exporter_set_property; + object_class->dispose = shew_window_exporter_dispose; + + g_object_class_install_property (object_class, + PROP_WINDOW, + g_param_spec_object ("window", + "GtkWindow", + "The GtkWindow to export", + GTK_TYPE_WINDOW, + G_PARAM_READWRITE | + G_PARAM_CONSTRUCT_ONLY | + G_PARAM_STATIC_STRINGS)); +} |