Learning_GTK4_tree/gdk/wayland/gdkdragsurface-wayland.c

162 lines
4.6 KiB
C

/*
* Copyright © 2022 Red Hat, Inc.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gdksurface-wayland.h"
#include "gdkdeviceprivate.h"
#include "gdkdisplay-wayland.h"
#include "gdkdragsurfaceprivate.h"
#include "gdkeventsprivate.h"
#include "gdkframeclockidleprivate.h"
#include "gdkglcontext-wayland.h"
#include "gdkmonitor-wayland.h"
#include "gdkpopupprivate.h"
#include "gdkprivate-wayland.h"
#include "gdkprivate-wayland.h"
#include "gdkseat-wayland.h"
#include "gdksurfaceprivate.h"
#include "gdktoplevelprivate.h"
#include "gdkdevice-wayland-private.h"
#include "gdkdragsurfacesizeprivate.h"
#include <wayland/xdg-shell-unstable-v6-client-protocol.h>
#include <wayland/xdg-foreign-unstable-v2-client-protocol.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <netinet/in.h>
#include <unistd.h>
#include "gdksurface-wayland-private.h"
typedef struct
{
GdkWaylandSurface parent_instance;
} GdkWaylandDragSurface;
typedef struct
{
GdkWaylandSurfaceClass parent_class;
} GdkWaylandDragSurfaceClass;
static void gdk_wayland_drag_surface_iface_init (GdkDragSurfaceInterface *iface);
#define GDK_IS_WAYLAND_DRAG_SURFACE(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_WAYLAND_DRAG_SURFACE))
G_DEFINE_TYPE_WITH_CODE (GdkWaylandDragSurface, gdk_wayland_drag_surface, GDK_TYPE_WAYLAND_SURFACE,
G_IMPLEMENT_INTERFACE (GDK_TYPE_DRAG_SURFACE,
gdk_wayland_drag_surface_iface_init))
static void
gdk_wayland_drag_surface_init (GdkWaylandDragSurface *surface)
{
}
static gboolean
gdk_wayland_drag_surface_compute_size (GdkSurface *surface)
{
GdkWaylandSurface *impl = GDK_WAYLAND_SURFACE (surface);
if (impl->next_layout.surface_geometry_dirty)
{
GdkDragSurfaceSize size;
gdk_drag_surface_size_init (&size);
size.width = impl->next_layout.configured_width;
size.height = impl->next_layout.configured_height;
gdk_drag_surface_notify_compute_size (GDK_DRAG_SURFACE (surface), &size);
impl->next_layout.configured_width = size.width;
impl->next_layout.configured_height = size.height;
gdk_wayland_surface_update_size (surface,
impl->next_layout.configured_width,
impl->next_layout.configured_height,
&impl->scale);
impl->next_layout.surface_geometry_dirty = FALSE;
}
return FALSE;
}
static void
gdk_wayland_drag_surface_constructed (GObject *object)
{
GdkSurface *surface = GDK_SURFACE (object);
GdkFrameClock *frame_clock;
frame_clock = _gdk_frame_clock_idle_new ();
gdk_surface_set_frame_clock (surface, frame_clock);
g_object_unref (frame_clock);
G_OBJECT_CLASS (gdk_wayland_drag_surface_parent_class)->constructed (object);
}
static void
gdk_wayland_drag_surface_class_init (GdkWaylandDragSurfaceClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GdkSurfaceClass *surface_class = GDK_SURFACE_CLASS (class);
object_class->constructed = gdk_wayland_drag_surface_constructed;
surface_class->compute_size = gdk_wayland_drag_surface_compute_size;
}
static void
maybe_notify_mapped (GdkSurface *surface)
{
if (surface->destroyed)
return;
if (!GDK_SURFACE_IS_MAPPED (surface))
gdk_surface_set_is_mapped (surface, TRUE);
}
static gboolean
gdk_wayland_drag_surface_present (GdkDragSurface *drag_surface,
int width,
int height)
{
GdkSurface *surface = GDK_SURFACE (drag_surface);
GdkWaylandSurface *impl = GDK_WAYLAND_SURFACE (surface);
impl->next_layout.configured_width = width;
impl->next_layout.configured_height = height;
impl->next_layout.surface_geometry_dirty = TRUE;
gdk_surface_request_layout (surface);
maybe_notify_mapped (surface);
return TRUE;
}
static void
gdk_wayland_drag_surface_iface_init (GdkDragSurfaceInterface *iface)
{
iface->present = gdk_wayland_drag_surface_present;
}