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https://gitlab.gnome.org/GNOME/gtk.git
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e43ec48e83
It will be useless to check the source window on the destination side, it's at the moment always NULL. Fetch the display from the device instead, which will be set for every GdkDragContext.
523 lines
15 KiB
C
523 lines
15 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 "gdkdndprivate.h"
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#include "gdkmain.h"
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#include "gdkinternals.h"
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#include "gdkproperty.h"
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#include "gdkprivate-wayland.h"
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#include "gdkdisplay-wayland.h"
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#include <string.h>
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#define GDK_TYPE_WAYLAND_DRAG_CONTEXT (gdk_wayland_drag_context_get_type ())
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#define GDK_WAYLAND_DRAG_CONTEXT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_WAYLAND_DRAG_CONTEXT, GdkWaylandDragContext))
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#define GDK_WAYLAND_DRAG_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_WAYLAND_DRAG_CONTEXT, GdkWaylandDragContextClass))
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#define GDK_IS_WAYLAND_DRAG_CONTEXT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_WAYLAND_DRAG_CONTEXT))
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#define GDK_IS_WAYLAND_DRAG_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_WAYLAND_DRAG_CONTEXT))
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#define GDK_WAYLAND_DRAG_CONTEXT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_WAYLAND_DRAG_CONTEXT, GdkWaylandDragContextClass))
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typedef struct _GdkWaylandDragContext GdkWaylandDragContext;
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typedef struct _GdkWaylandDragContextClass GdkWaylandDragContextClass;
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struct _GdkWaylandDragContext
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{
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GdkDragContext context;
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GdkWindow *dnd_window;
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struct wl_surface *dnd_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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gdouble x;
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gdouble y;
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};
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struct _GdkWaylandDragContextClass
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{
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GdkDragContextClass parent_class;
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};
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static GList *contexts;
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GType gdk_wayland_drag_context_get_type (void);
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G_DEFINE_TYPE (GdkWaylandDragContext, gdk_wayland_drag_context, GDK_TYPE_DRAG_CONTEXT)
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static void
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gdk_wayland_drag_context_finalize (GObject *object)
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{
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GdkWaylandDragContext *wayland_context = GDK_WAYLAND_DRAG_CONTEXT (object);
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GdkDragContext *context = GDK_DRAG_CONTEXT (object);
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GdkDisplay *display = gdk_window_get_display (context->source_window);
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contexts = g_list_remove (contexts, context);
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if (context->is_source &&
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gdk_selection_owner_get_for_display (display, gdk_drag_get_selection (context)) == context->source_window)
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gdk_wayland_selection_unset_data_source (display, gdk_drag_get_selection (context));
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if (wayland_context->data_source)
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wl_data_source_destroy (wayland_context->data_source);
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if (wayland_context->dnd_window)
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gdk_window_destroy (wayland_context->dnd_window);
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G_OBJECT_CLASS (gdk_wayland_drag_context_parent_class)->finalize (object);
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}
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void
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_gdk_wayland_drag_context_emit_event (GdkDragContext *context,
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GdkEventType type,
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guint32 time_)
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{
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GdkWindow *window;
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GdkEvent *event;
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switch (type)
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{
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case GDK_DRAG_ENTER:
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case GDK_DRAG_LEAVE:
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case GDK_DRAG_MOTION:
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case GDK_DRAG_STATUS:
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case GDK_DROP_START:
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case GDK_DROP_FINISHED:
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break;
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default:
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return;
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}
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if (context->is_source)
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window = gdk_drag_context_get_source_window (context);
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else
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window = gdk_drag_context_get_dest_window (context);
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event = gdk_event_new (type);
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event->dnd.window = g_object_ref (window);
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event->dnd.context = g_object_ref (context);
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event->dnd.time = time_;
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event->dnd.x_root = GDK_WAYLAND_DRAG_CONTEXT (context)->x;
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event->dnd.y_root = GDK_WAYLAND_DRAG_CONTEXT (context)->y;
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gdk_event_set_device (event, gdk_drag_context_get_device (context));
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gdk_event_put (event);
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gdk_event_free (event);
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}
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static GdkWindow *
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gdk_wayland_drag_context_find_window (GdkDragContext *context,
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GdkWindow *drag_window,
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GdkScreen *screen,
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gint x_root,
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gint y_root,
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GdkDragProtocol *protocol)
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{
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GdkDevice *device;
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GdkWindow *window;
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device = gdk_drag_context_get_device (context);
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window = gdk_device_get_window_at_position (device, NULL, NULL);
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if (window)
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{
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window = gdk_window_get_toplevel (window);
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*protocol = GDK_DRAG_PROTO_WAYLAND;
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return g_object_ref (window);
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}
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return NULL;
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}
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void
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gdk_wayland_drag_context_set_action (GdkDragContext *context,
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GdkDragAction action)
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{
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context->suggested_action = context->action = action;
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}
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static gboolean
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gdk_wayland_drag_context_drag_motion (GdkDragContext *context,
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GdkWindow *dest_window,
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GdkDragProtocol protocol,
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gint x_root,
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gint y_root,
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GdkDragAction suggested_action,
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GdkDragAction possible_actions,
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guint32 time)
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{
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if (context->dest_window != dest_window)
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{
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context->dest_window = dest_window ? g_object_ref (dest_window) : NULL;
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_gdk_wayland_drag_context_set_coords (context, x_root, y_root);
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_gdk_wayland_drag_context_emit_event (context, GDK_DRAG_STATUS, time);
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}
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gdk_wayland_drag_context_set_action (context, suggested_action);
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return context->dest_window != NULL;
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}
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static void
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gdk_wayland_drag_context_drag_abort (GdkDragContext *context,
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guint32 time)
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{
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}
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static void
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gdk_wayland_drag_context_drag_drop (GdkDragContext *context,
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guint32 time)
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{
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}
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/* Destination side */
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static void
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gdk_wayland_drop_context_set_status (GdkDragContext *context,
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gboolean accepted)
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{
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GdkWaylandDragContext *context_wayland;
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GdkDisplay *display;
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struct wl_data_offer *wl_offer;
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context_wayland = GDK_WAYLAND_DRAG_CONTEXT (context);
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display = gdk_window_get_display (context->source_window);
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wl_offer = gdk_wayland_selection_get_offer (display);
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if (!wl_offer)
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return;
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if (accepted)
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{
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GList *l;
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for (l = context->targets; l; l = l->next)
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{
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if (l->data != gdk_atom_intern_static_string ("DELETE"))
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break;
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}
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if (l)
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{
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wl_data_offer_accept (wl_offer, context_wayland->serial,
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gdk_atom_name (l->data));
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return;
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}
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}
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wl_data_offer_accept (wl_offer, context_wayland->serial, NULL);
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}
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static void
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gdk_wayland_drag_context_drag_status (GdkDragContext *context,
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GdkDragAction action,
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guint32 time_)
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{
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gdk_wayland_drop_context_set_status (context, action != 0);
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}
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static void
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gdk_wayland_drag_context_drop_reply (GdkDragContext *context,
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gboolean accepted,
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guint32 time_)
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{
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gdk_wayland_drop_context_set_status (context, accepted);
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}
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static void
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gdk_wayland_drag_context_drop_finish (GdkDragContext *context,
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gboolean success,
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guint32 time)
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{
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GdkDisplay *display = gdk_window_get_display (context->source_window);
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if (gdk_selection_owner_get_for_display (display, gdk_drag_get_selection (context)))
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gdk_wayland_selection_unset_data_source (display, gdk_drag_get_selection (context));
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}
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static gboolean
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gdk_wayland_drag_context_drop_status (GdkDragContext *context)
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{
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return FALSE;
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}
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static GdkAtom
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gdk_wayland_drag_context_get_selection (GdkDragContext *context)
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{
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return gdk_atom_intern_static_string ("GdkWaylandSelection");
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}
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static void
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gdk_wayland_drag_context_init (GdkWaylandDragContext *context_wayland)
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{
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GdkDragContext *context;
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context = GDK_DRAG_CONTEXT (context_wayland);
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contexts = g_list_prepend (contexts, context);
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context->action = GDK_ACTION_COPY;
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context->suggested_action = GDK_ACTION_COPY;
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context->actions = GDK_ACTION_COPY | GDK_ACTION_MOVE;
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}
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static void
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gdk_wayland_drag_context_class_init (GdkWaylandDragContextClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GdkDragContextClass *context_class = GDK_DRAG_CONTEXT_CLASS (klass);
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object_class->finalize = gdk_wayland_drag_context_finalize;
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context_class->find_window = gdk_wayland_drag_context_find_window;
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context_class->drag_status = gdk_wayland_drag_context_drag_status;
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context_class->drag_motion = gdk_wayland_drag_context_drag_motion;
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context_class->drag_abort = gdk_wayland_drag_context_drag_abort;
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context_class->drag_drop = gdk_wayland_drag_context_drag_drop;
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context_class->drop_reply = gdk_wayland_drag_context_drop_reply;
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context_class->drop_finish = gdk_wayland_drag_context_drop_finish;
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context_class->drop_status = gdk_wayland_drag_context_drop_status;
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context_class->get_selection = gdk_wayland_drag_context_get_selection;
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}
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GdkDragProtocol
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_gdk_wayland_window_get_drag_protocol (GdkWindow *window, GdkWindow **target)
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{
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return GDK_DRAG_PROTO_WAYLAND;
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}
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void
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_gdk_wayland_window_register_dnd (GdkWindow *window)
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{
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}
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static GdkWindow *
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create_dnd_window (GdkScreen *screen)
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{
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GdkWindowAttr attrs;
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guint mask;
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attrs.x = attrs.y = 0;
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attrs.width = attrs.height = 100;
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attrs.wclass = GDK_INPUT_OUTPUT;
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attrs.window_type = GDK_WINDOW_TEMP;
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attrs.type_hint = GDK_WINDOW_TYPE_HINT_DND;
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attrs.visual = gdk_screen_get_system_visual (screen);
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mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_TYPE_HINT;
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return gdk_window_new (gdk_screen_get_root_window (screen), &attrs, mask);
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}
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GdkDragContext *
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_gdk_wayland_window_drag_begin (GdkWindow *window,
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GdkDevice *device,
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GList *targets)
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{
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GdkWaylandDragContext *context_wayland;
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GdkWaylandDisplay *display_wayland;
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GdkDragContext *context;
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GdkWindow *toplevel;
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GList *l;
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toplevel = gdk_device_get_window_at_position (device, NULL, NULL);
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context_wayland = g_object_new (GDK_TYPE_WAYLAND_DRAG_CONTEXT, NULL);
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context = GDK_DRAG_CONTEXT (context_wayland);
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context->source_window = g_object_ref (window);
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context->is_source = TRUE;
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context->targets = g_list_copy (targets);
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gdk_drag_context_set_device (context, device);
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display_wayland = GDK_WAYLAND_DISPLAY (gdk_device_get_display (device));
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context_wayland->dnd_window = create_dnd_window (gdk_window_get_screen (window));
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context_wayland->dnd_surface = gdk_wayland_window_get_wl_surface (context_wayland->dnd_window);
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context_wayland->data_source =
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gdk_wayland_selection_get_data_source (window,
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gdk_wayland_drag_context_get_selection (context));
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for (l = context->targets; l; l = l->next)
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wl_data_source_offer (context_wayland->data_source, gdk_atom_name (l->data));
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wl_data_device_start_drag (gdk_wayland_device_get_data_device (device),
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context_wayland->data_source,
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gdk_wayland_window_get_wl_surface (toplevel),
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context_wayland->dnd_surface,
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_gdk_wayland_display_get_serial (display_wayland));
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return context;
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}
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GdkDragContext *
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_gdk_wayland_drop_context_new (GdkDevice *device,
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struct wl_data_device *data_device)
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{
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GdkWaylandDragContext *context_wayland;
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GdkDragContext *context;
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context_wayland = g_object_new (GDK_TYPE_WAYLAND_DRAG_CONTEXT, NULL);
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context = GDK_DRAG_CONTEXT (context_wayland);
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context->is_source = FALSE;
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gdk_drag_context_set_device (context, device);
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return context;
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}
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void
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gdk_wayland_drop_context_update_targets (GdkDragContext *context)
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{
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GdkDisplay *display;
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GdkDevice *device;
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device = gdk_drag_context_get_device (context);
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display = gdk_device_get_display (device);
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g_list_free (context->targets);
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context->targets = g_list_copy (gdk_wayland_selection_get_targets (display));
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}
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void
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_gdk_wayland_drag_context_set_coords (GdkDragContext *context,
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gdouble x,
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gdouble y)
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{
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GdkWaylandDragContext *context_wayland;
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context_wayland = GDK_WAYLAND_DRAG_CONTEXT (context);
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context_wayland->x = x;
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context_wayland->y = y;
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}
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void
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_gdk_wayland_drag_context_set_source_window (GdkDragContext *context,
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GdkWindow *window)
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{
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if (context->source_window)
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g_object_unref (context->source_window);
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context->source_window = window ? g_object_ref (window) : NULL;
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}
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void
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_gdk_wayland_drag_context_set_dest_window (GdkDragContext *context,
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GdkWindow *dest_window,
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uint32_t serial)
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{
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context->dest_window = dest_window ? g_object_ref (dest_window) : NULL;
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GDK_WAYLAND_DRAG_CONTEXT (context)->serial = serial;
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gdk_wayland_drop_context_update_targets (context);
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}
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GdkDragContext *
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gdk_wayland_drag_context_lookup_by_data_source (struct wl_data_source *source)
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{
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GList *l;
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for (l = contexts; l; l = l->next)
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{
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GdkWaylandDragContext *wayland_context = l->data;
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if (wayland_context->data_source == source)
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return l->data;
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}
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return NULL;
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}
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GdkDragContext *
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gdk_wayland_drag_context_lookup_by_source_window (GdkWindow *window)
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{
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GList *l;
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for (l = contexts; l; l = l->next)
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{
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if (window == gdk_drag_context_get_source_window (l->data))
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return l->data;
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}
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return NULL;
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}
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struct wl_data_source *
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gdk_wayland_drag_context_get_data_source (GdkDragContext *context)
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{
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return GDK_WAYLAND_DRAG_CONTEXT (context)->data_source;
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}
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void
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gdk_wayland_drag_context_undo_grab (GdkDragContext *context)
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{
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GdkEventSequence *sequence;
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GdkModifierType state;
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GdkDevice *device;
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GdkEvent *event;
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guint button;
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gdouble x, y;
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device = gdk_drag_context_get_device (context);
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_gdk_wayland_device_get_last_implicit_grab_serial (GDK_WAYLAND_DEVICE (device), &sequence);
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gdk_window_get_device_position_double (gdk_drag_context_get_source_window (context),
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device, &x, &y, &state);
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if (sequence)
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{
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event = gdk_event_new (GDK_TOUCH_END);
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event->touch.window = g_object_ref (gdk_drag_context_get_source_window (context));
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event->touch.send_event = TRUE;
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event->touch.sequence = sequence;
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event->touch.time = GDK_CURRENT_TIME;
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event->touch.x = event->touch.x_root = x;
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event->touch.y = event->touch.y_root = y;
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}
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else if (state & (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK | GDK_BUTTON3_MASK))
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{
|
|
if (state & GDK_BUTTON1_MASK)
|
|
button = 1;
|
|
else if (state & GDK_BUTTON2_MASK)
|
|
button = 2;
|
|
else if (state & GDK_BUTTON3_MASK)
|
|
button = 3;
|
|
else
|
|
return;
|
|
|
|
event = gdk_event_new (GDK_BUTTON_RELEASE);
|
|
event->button.window = g_object_ref (gdk_drag_context_get_source_window (context));
|
|
event->button.send_event = TRUE;
|
|
event->button.button = button;
|
|
event->button.time = GDK_CURRENT_TIME;
|
|
event->button.x = event->button.x_root = x;
|
|
event->button.y = event->button.y_root = y;
|
|
}
|
|
else
|
|
return;
|
|
|
|
gdk_event_set_device (event, device);
|
|
gdk_event_set_source_device (event, device);
|
|
|
|
_gdk_wayland_display_deliver_event (gdk_device_get_display (device), event);
|
|
}
|
|
|
|
GdkWindow *
|
|
gdk_wayland_drag_context_get_dnd_window (GdkDragContext *context)
|
|
{
|
|
GdkWaylandDragContext *wayland_context;
|
|
|
|
wayland_context = GDK_WAYLAND_DRAG_CONTEXT (context);
|
|
return wayland_context->dnd_window;
|
|
}
|