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eb0b98d5f2
This serial should be that from a button press/touch down/etc, use the last implicit grab here, which will presumably be from the same device that triggered the event. Closes: https://gitlab.gnome.org/GNOME/gtk/-/issues/5048
406 lines
12 KiB
C
406 lines
12 KiB
C
/*
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* Copyright © 2010 Intel Corporation
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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 Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "gdkdragprivate.h"
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#include "gdkprivate-wayland.h"
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#include "gdkcontentformats.h"
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#include "gdkdisplay-wayland.h"
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#include "gdkintl.h"
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#include "gdkseat-wayland.h"
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#include "gdkdeviceprivate.h"
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#include <glib-unix.h>
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#include <gio/gunixinputstream.h>
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#include <gio/gunixoutputstream.h>
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#include <string.h>
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#define GDK_TYPE_WAYLAND_DRAG (gdk_wayland_drag_get_type ())
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#define GDK_WAYLAND_DRAG(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_WAYLAND_DRAG, GdkWaylandDrag))
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#define GDK_WAYLAND_DRAG_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_WAYLAND_DRAG, GdkWaylandDragClass))
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#define GDK_IS_WAYLAND_DRAG(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_WAYLAND_DRAG))
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#define GDK_IS_WAYLAND_DRAG_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_WAYLAND_DRAG))
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#define GDK_WAYLAND_DRAG_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_WAYLAND_DRAG, GdkWaylandDragClass))
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typedef struct _GdkWaylandDrag GdkWaylandDrag;
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typedef struct _GdkWaylandDragClass GdkWaylandDragClass;
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struct _GdkWaylandDrag
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{
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GdkDrag drag;
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GdkSurface *dnd_surface;
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struct wl_surface *dnd_wl_surface;
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struct wl_data_source *data_source;
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struct wl_data_offer *offer;
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uint32_t serial;
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int hot_x;
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int hot_y;
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};
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struct _GdkWaylandDragClass
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{
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GdkDragClass parent_class;
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};
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static GList *drags;
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GType gdk_wayland_drag_get_type (void);
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G_DEFINE_TYPE (GdkWaylandDrag, gdk_wayland_drag, GDK_TYPE_DRAG)
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static void
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gdk_wayland_drag_finalize (GObject *object)
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{
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GdkWaylandDrag *wayland_drag = GDK_WAYLAND_DRAG (object);
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GdkDrag *drag = GDK_DRAG (object);
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GdkSurface *dnd_surface;
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drags = g_list_remove (drags, drag);
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gdk_drag_set_cursor (drag, NULL);
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g_clear_pointer (&wayland_drag->data_source, wl_data_source_destroy);
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g_clear_pointer (&wayland_drag->offer, wl_data_offer_destroy);
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dnd_surface = wayland_drag->dnd_surface;
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G_OBJECT_CLASS (gdk_wayland_drag_parent_class)->finalize (object);
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if (dnd_surface)
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gdk_surface_destroy (dnd_surface);
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}
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static inline uint32_t
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gdk_to_wl_actions (GdkDragAction action)
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{
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uint32_t dnd_actions = 0;
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if (action & (GDK_ACTION_COPY | GDK_ACTION_LINK))
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dnd_actions |= WL_DATA_DEVICE_MANAGER_DND_ACTION_COPY;
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if (action & GDK_ACTION_MOVE)
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dnd_actions |= WL_DATA_DEVICE_MANAGER_DND_ACTION_MOVE;
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if (action & GDK_ACTION_ASK)
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dnd_actions |= WL_DATA_DEVICE_MANAGER_DND_ACTION_ASK;
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return dnd_actions;
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}
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static void
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gdk_wayland_drag_init (GdkWaylandDrag *drag_wayland)
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{
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GdkDrag *drag;
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drag = GDK_DRAG (drag_wayland);
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drags = g_list_prepend (drags, drag);
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gdk_drag_set_selected_action (drag, GDK_ACTION_COPY);
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}
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static GdkSurface *
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gdk_wayland_drag_get_drag_surface (GdkDrag *drag)
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{
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return GDK_WAYLAND_DRAG (drag)->dnd_surface;
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}
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static void
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gdk_wayland_drag_set_hotspot (GdkDrag *drag,
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int hot_x,
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int hot_y)
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{
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GdkWaylandDrag *drag_wayland = GDK_WAYLAND_DRAG (drag);
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int prev_hot_x = drag_wayland->hot_x;
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int prev_hot_y = drag_wayland->hot_y;
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const GdkRectangle damage_rect = { .width = 1, .height = 1 };
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drag_wayland->hot_x = hot_x;
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drag_wayland->hot_y = hot_y;
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if (prev_hot_x == hot_x && prev_hot_y == hot_y)
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return;
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_gdk_wayland_surface_offset_next_wl_buffer (drag_wayland->dnd_surface,
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prev_hot_x - hot_x, prev_hot_y - hot_y);
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gdk_surface_invalidate_rect (drag_wayland->dnd_surface, &damage_rect);
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}
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static void
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gdk_wayland_drag_set_cursor (GdkDrag *drag,
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GdkCursor *cursor)
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{
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GdkDevice *device = gdk_drag_get_device (drag);
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if (device != NULL)
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gdk_wayland_seat_set_global_cursor (gdk_device_get_seat (device), cursor);
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}
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static void
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gdk_wayland_drag_drop_performed (GdkDrag *drag,
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guint32 time_)
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{
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gdk_drag_set_cursor (drag, NULL);
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}
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static void
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gdk_wayland_drag_cancel (GdkDrag *drag,
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GdkDragCancelReason reason)
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{
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gdk_drag_set_cursor (drag, NULL);
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gdk_drag_drop_done (drag, FALSE);
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}
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static void
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gdk_wayland_drag_drop_done (GdkDrag *drag,
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gboolean success)
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{
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GdkWaylandDrag *drag_wayland = GDK_WAYLAND_DRAG (drag);
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GdkDevice *device = gdk_drag_get_device (drag);
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gdk_wayland_seat_set_drag (gdk_device_get_seat (device), NULL);
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if (success)
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{
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if (drag_wayland->dnd_surface)
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gdk_surface_hide (drag_wayland->dnd_surface);
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}
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}
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static void
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gdk_wayland_drag_class_init (GdkWaylandDragClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GdkDragClass *drag_class = GDK_DRAG_CLASS (klass);
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object_class->finalize = gdk_wayland_drag_finalize;
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drag_class->get_drag_surface = gdk_wayland_drag_get_drag_surface;
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drag_class->set_hotspot = gdk_wayland_drag_set_hotspot;
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drag_class->drop_done = gdk_wayland_drag_drop_done;
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drag_class->set_cursor = gdk_wayland_drag_set_cursor;
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drag_class->drop_performed = gdk_wayland_drag_drop_performed;
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drag_class->cancel = gdk_wayland_drag_cancel;
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}
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static inline GdkDragAction
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_wl_to_gdk_actions (uint32_t dnd_actions)
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{
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GdkDragAction actions = 0;
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if (dnd_actions & WL_DATA_DEVICE_MANAGER_DND_ACTION_COPY)
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actions |= GDK_ACTION_COPY;
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if (dnd_actions & WL_DATA_DEVICE_MANAGER_DND_ACTION_MOVE)
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actions |= GDK_ACTION_MOVE;
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if (dnd_actions & WL_DATA_DEVICE_MANAGER_DND_ACTION_ASK)
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actions |= GDK_ACTION_ASK;
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return actions;
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}
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static void
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data_source_target (void *data,
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struct wl_data_source *source,
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const char *mime_type)
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{
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GDK_NOTE (EVENTS,
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g_message ("data source target, source = %p, mime_type = %s",
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source, mime_type));
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}
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static void
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gdk_wayland_drag_write_done (GObject *drag,
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GAsyncResult *result,
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gpointer user_data)
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{
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GError *error = NULL;
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if (!gdk_drag_write_finish (GDK_DRAG (drag), result, &error))
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{
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GDK_DISPLAY_NOTE (gdk_drag_get_display (GDK_DRAG (drag)), DND, g_message ("%p: failed to write stream: %s", drag, error->message));
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g_error_free (error);
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}
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}
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static void
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data_source_send (void *data,
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struct wl_data_source *source,
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const char *mime_type,
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int32_t fd)
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{
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GdkDrag *drag = data;
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GOutputStream *stream;
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GDK_DISPLAY_NOTE (gdk_drag_get_display (drag), DND, g_message ("%p: data source send request for %s on fd %d\n",
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source, mime_type, fd));
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//mime_type = gdk_intern_mime_type (mime_type);
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mime_type = g_intern_string (mime_type);
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stream = g_unix_output_stream_new (fd, TRUE);
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gdk_drag_write_async (drag,
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mime_type,
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stream,
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G_PRIORITY_DEFAULT,
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NULL,
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gdk_wayland_drag_write_done,
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drag);
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g_object_unref (stream);
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}
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static void
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data_source_cancelled (void *data,
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struct wl_data_source *source)
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{
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GdkDrag *drag = data;
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GDK_DISPLAY_NOTE (gdk_drag_get_display (drag), EVENTS,
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g_message ("data source cancelled, source = %p", source));
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gdk_drag_cancel (drag, GDK_DRAG_CANCEL_ERROR);
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}
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static void
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data_source_dnd_drop_performed (void *data,
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struct wl_data_source *source)
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{
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GdkDrag *drag = data;
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g_signal_emit_by_name (drag, "drop-performed");
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}
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static void
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data_source_dnd_finished (void *data,
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struct wl_data_source *source)
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{
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GdkDrag *drag = data;
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g_object_ref (drag);
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g_signal_emit_by_name (drag, "dnd-finished");
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gdk_drag_drop_done (drag, TRUE);
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g_object_unref (drag);
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}
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static void
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data_source_action (void *data,
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struct wl_data_source *source,
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uint32_t action)
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{
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GdkDrag *drag = data;
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GDK_DISPLAY_NOTE (gdk_drag_get_display (drag), EVENTS,
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g_message ("data source action, source = %p action=%x",
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source, action));
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gdk_drag_set_selected_action (drag, _wl_to_gdk_actions (action));
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}
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static const struct wl_data_source_listener data_source_listener = {
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data_source_target,
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data_source_send,
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data_source_cancelled,
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data_source_dnd_drop_performed,
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data_source_dnd_finished,
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data_source_action,
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};
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static void
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gdk_wayland_drag_create_data_source (GdkDrag *drag)
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{
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GdkWaylandDrag *drag_wayland = GDK_WAYLAND_DRAG (drag);
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GdkDisplay *display = gdk_drag_get_display (drag);
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GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
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const char *const *mimetypes;
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GdkContentFormats *formats;
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gsize i, n_mimetypes;
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drag_wayland->data_source = wl_data_device_manager_create_data_source (display_wayland->data_device_manager);
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wl_data_source_add_listener (drag_wayland->data_source,
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&data_source_listener,
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drag);
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formats = gdk_content_formats_ref (gdk_drag_get_formats (drag));
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formats = gdk_content_formats_union_serialize_mime_types (formats);
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mimetypes = gdk_content_formats_get_mime_types (formats, &n_mimetypes);
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GDK_DISPLAY_NOTE (gdk_drag_get_display (drag), EVENTS,
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{char *s = g_strjoinv (" ", (char **)mimetypes);
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g_message ("create data source, mime types=%s", s);
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g_free (s);});
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wl_data_source_offer (drag_wayland->data_source, GDK_WAYLAND_LOCAL_DND_MIME_TYPE);
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for (i = 0; i < n_mimetypes; i++)
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wl_data_source_offer (drag_wayland->data_source, mimetypes[i]);
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gdk_content_formats_unref (formats);
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}
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GdkDrag *
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_gdk_wayland_surface_drag_begin (GdkSurface *surface,
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GdkDevice *device,
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GdkContentProvider *content,
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GdkDragAction actions,
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double dx,
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double dy)
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{
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GdkWaylandDrag *drag_wayland;
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GdkDrag *drag;
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GdkSeat *seat;
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GdkWaylandDisplay *display_wayland;
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GdkCursor *cursor;
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display_wayland = GDK_WAYLAND_DISPLAY (gdk_device_get_display (device));
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seat = gdk_device_get_seat (device);
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drag_wayland = g_object_new (GDK_TYPE_WAYLAND_DRAG,
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"surface", surface,
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"device", device,
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"content", content,
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"actions", actions,
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NULL);
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drag = GDK_DRAG (drag_wayland);
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drag_wayland->dnd_surface = create_dnd_surface (gdk_surface_get_display (surface));
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drag_wayland->dnd_wl_surface = gdk_wayland_surface_get_wl_surface (drag_wayland->dnd_surface);
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gdk_wayland_drag_create_data_source (drag);
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if (display_wayland->data_device_manager_version >=
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WL_DATA_SOURCE_SET_ACTIONS_SINCE_VERSION)
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{
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wl_data_source_set_actions (drag_wayland->data_source,
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gdk_to_wl_actions (actions));
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}
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gdk_wayland_seat_set_drag (seat, drag);
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wl_data_device_start_drag (gdk_wayland_device_get_data_device (device),
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drag_wayland->data_source,
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gdk_wayland_surface_get_wl_surface (surface),
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drag_wayland->dnd_wl_surface,
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_gdk_wayland_seat_get_implicit_grab_serial (seat, NULL));
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cursor = gdk_drag_get_cursor (drag, gdk_drag_get_selected_action (drag));
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gdk_drag_set_cursor (drag, cursor);
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gdk_seat_ungrab (seat);
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return drag;
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}
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