forked from AuroraMiddleware/gtk
f9e504d70e
We destroy the widget that is wrapped around the drag window when the object data on the drag context gets cleared. Destroying the window before that happens leads to unpleasantries. E.g. we may try to access the frame clock, which doesn't exist anymore, and things go downhill from there. So, keep the window alive for a little longer.
521 lines
15 KiB
C
521 lines
15 KiB
C
/*
|
|
* Copyright © 2010 Intel Corporation
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library 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
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "gdkdndprivate.h"
|
|
|
|
#include "gdkmain.h"
|
|
#include "gdkinternals.h"
|
|
#include "gdkproperty.h"
|
|
#include "gdkprivate-wayland.h"
|
|
#include "gdkdisplay-wayland.h"
|
|
|
|
#include "gdkdeviceprivate.h"
|
|
|
|
#include <string.h>
|
|
|
|
#define GDK_TYPE_WAYLAND_DRAG_CONTEXT (gdk_wayland_drag_context_get_type ())
|
|
#define GDK_WAYLAND_DRAG_CONTEXT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_WAYLAND_DRAG_CONTEXT, GdkWaylandDragContext))
|
|
#define GDK_WAYLAND_DRAG_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_WAYLAND_DRAG_CONTEXT, GdkWaylandDragContextClass))
|
|
#define GDK_IS_WAYLAND_DRAG_CONTEXT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_WAYLAND_DRAG_CONTEXT))
|
|
#define GDK_IS_WAYLAND_DRAG_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_WAYLAND_DRAG_CONTEXT))
|
|
#define GDK_WAYLAND_DRAG_CONTEXT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_WAYLAND_DRAG_CONTEXT, GdkWaylandDragContextClass))
|
|
|
|
typedef struct _GdkWaylandDragContext GdkWaylandDragContext;
|
|
typedef struct _GdkWaylandDragContextClass GdkWaylandDragContextClass;
|
|
|
|
struct _GdkWaylandDragContext
|
|
{
|
|
GdkDragContext context;
|
|
GdkWindow *dnd_window;
|
|
struct wl_surface *dnd_surface;
|
|
struct wl_data_source *data_source;
|
|
uint32_t serial;
|
|
gdouble x;
|
|
gdouble y;
|
|
gint hot_x;
|
|
gint hot_y;
|
|
};
|
|
|
|
struct _GdkWaylandDragContextClass
|
|
{
|
|
GdkDragContextClass parent_class;
|
|
};
|
|
|
|
static GList *contexts;
|
|
|
|
GType gdk_wayland_drag_context_get_type (void);
|
|
|
|
G_DEFINE_TYPE (GdkWaylandDragContext, gdk_wayland_drag_context, GDK_TYPE_DRAG_CONTEXT)
|
|
|
|
static void
|
|
gdk_wayland_drag_context_finalize (GObject *object)
|
|
{
|
|
GdkWaylandDragContext *wayland_context = GDK_WAYLAND_DRAG_CONTEXT (object);
|
|
GdkDragContext *context = GDK_DRAG_CONTEXT (object);
|
|
GdkWindow *dnd_window;
|
|
|
|
contexts = g_list_remove (contexts, context);
|
|
|
|
if (context->is_source)
|
|
{
|
|
GdkDisplay *display = gdk_window_get_display (context->source_window);
|
|
GdkAtom selection;
|
|
GdkWindow *selection_owner;
|
|
|
|
selection = gdk_drag_get_selection (context);
|
|
selection_owner = gdk_selection_owner_get_for_display (display, selection);
|
|
if (selection_owner == context->source_window)
|
|
gdk_wayland_selection_unset_data_source (display, selection);
|
|
}
|
|
|
|
if (wayland_context->data_source)
|
|
wl_data_source_destroy (wayland_context->data_source);
|
|
|
|
dnd_window = wayland_context->dnd_window;
|
|
|
|
G_OBJECT_CLASS (gdk_wayland_drag_context_parent_class)->finalize (object);
|
|
|
|
if (dnd_window)
|
|
gdk_window_destroy (dnd_window);
|
|
}
|
|
|
|
void
|
|
_gdk_wayland_drag_context_emit_event (GdkDragContext *context,
|
|
GdkEventType type,
|
|
guint32 time_)
|
|
{
|
|
GdkWindow *window;
|
|
GdkEvent *event;
|
|
|
|
switch (type)
|
|
{
|
|
case GDK_DRAG_ENTER:
|
|
case GDK_DRAG_LEAVE:
|
|
case GDK_DRAG_MOTION:
|
|
case GDK_DRAG_STATUS:
|
|
case GDK_DROP_START:
|
|
case GDK_DROP_FINISHED:
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
|
|
if (context->is_source)
|
|
window = gdk_drag_context_get_source_window (context);
|
|
else
|
|
window = gdk_drag_context_get_dest_window (context);
|
|
|
|
event = gdk_event_new (type);
|
|
event->dnd.window = g_object_ref (window);
|
|
event->dnd.context = g_object_ref (context);
|
|
event->dnd.time = time_;
|
|
event->dnd.x_root = GDK_WAYLAND_DRAG_CONTEXT (context)->x;
|
|
event->dnd.y_root = GDK_WAYLAND_DRAG_CONTEXT (context)->y;
|
|
gdk_event_set_device (event, gdk_drag_context_get_device (context));
|
|
|
|
gdk_event_put (event);
|
|
gdk_event_free (event);
|
|
}
|
|
|
|
static GdkWindow *
|
|
gdk_wayland_drag_context_find_window (GdkDragContext *context,
|
|
GdkWindow *drag_window,
|
|
GdkScreen *screen,
|
|
gint x_root,
|
|
gint y_root,
|
|
GdkDragProtocol *protocol)
|
|
{
|
|
GdkDevice *device;
|
|
GdkWindow *window;
|
|
|
|
device = gdk_drag_context_get_device (context);
|
|
window = gdk_device_get_window_at_position (device, NULL, NULL);
|
|
|
|
if (window)
|
|
{
|
|
window = gdk_window_get_toplevel (window);
|
|
*protocol = GDK_DRAG_PROTO_WAYLAND;
|
|
return g_object_ref (window);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
gdk_wayland_drag_context_set_action (GdkDragContext *context,
|
|
GdkDragAction action)
|
|
{
|
|
context->suggested_action = context->action = action;
|
|
}
|
|
|
|
static gboolean
|
|
gdk_wayland_drag_context_drag_motion (GdkDragContext *context,
|
|
GdkWindow *dest_window,
|
|
GdkDragProtocol protocol,
|
|
gint x_root,
|
|
gint y_root,
|
|
GdkDragAction suggested_action,
|
|
GdkDragAction possible_actions,
|
|
guint32 time)
|
|
{
|
|
if (context->dest_window != dest_window)
|
|
{
|
|
context->dest_window = dest_window ? g_object_ref (dest_window) : NULL;
|
|
_gdk_wayland_drag_context_set_coords (context, x_root, y_root);
|
|
_gdk_wayland_drag_context_emit_event (context, GDK_DRAG_STATUS, time);
|
|
}
|
|
|
|
gdk_wayland_drag_context_set_action (context, suggested_action);
|
|
|
|
return context->dest_window != NULL;
|
|
}
|
|
|
|
static void
|
|
gdk_wayland_drag_context_drag_abort (GdkDragContext *context,
|
|
guint32 time)
|
|
{
|
|
}
|
|
|
|
static void
|
|
gdk_wayland_drag_context_drag_drop (GdkDragContext *context,
|
|
guint32 time)
|
|
{
|
|
}
|
|
|
|
/* Destination side */
|
|
|
|
static void
|
|
gdk_wayland_drop_context_set_status (GdkDragContext *context,
|
|
gboolean accepted)
|
|
{
|
|
GdkWaylandDragContext *context_wayland;
|
|
GdkDisplay *display;
|
|
struct wl_data_offer *wl_offer;
|
|
|
|
context_wayland = GDK_WAYLAND_DRAG_CONTEXT (context);
|
|
|
|
display = gdk_device_get_display (gdk_drag_context_get_device (context));
|
|
wl_offer = gdk_wayland_selection_get_offer (display,
|
|
gdk_drag_get_selection (context));
|
|
|
|
if (!wl_offer)
|
|
return;
|
|
|
|
if (accepted)
|
|
{
|
|
GList *l;
|
|
|
|
for (l = context->targets; l; l = l->next)
|
|
{
|
|
if (l->data != gdk_atom_intern_static_string ("DELETE"))
|
|
break;
|
|
}
|
|
|
|
if (l)
|
|
{
|
|
gchar *mimetype = gdk_atom_name (l->data);
|
|
|
|
wl_data_offer_accept (wl_offer, context_wayland->serial, mimetype);
|
|
g_free (mimetype);
|
|
return;
|
|
}
|
|
}
|
|
|
|
wl_data_offer_accept (wl_offer, context_wayland->serial, NULL);
|
|
}
|
|
|
|
static void
|
|
gdk_wayland_drag_context_drag_status (GdkDragContext *context,
|
|
GdkDragAction action,
|
|
guint32 time_)
|
|
{
|
|
gdk_wayland_drop_context_set_status (context, action != 0);
|
|
}
|
|
|
|
static void
|
|
gdk_wayland_drag_context_drop_reply (GdkDragContext *context,
|
|
gboolean accepted,
|
|
guint32 time_)
|
|
{
|
|
if (!accepted)
|
|
gdk_wayland_drop_context_set_status (context, accepted);
|
|
}
|
|
|
|
static void
|
|
gdk_wayland_drag_context_drop_finish (GdkDragContext *context,
|
|
gboolean success,
|
|
guint32 time)
|
|
{
|
|
GdkDisplay *display = gdk_device_get_display (gdk_drag_context_get_device (context));
|
|
GdkAtom selection;
|
|
|
|
selection = gdk_drag_get_selection (context);
|
|
|
|
if (gdk_selection_owner_get_for_display (display, selection))
|
|
gdk_wayland_selection_unset_data_source (display, selection);
|
|
|
|
gdk_wayland_selection_set_offer (display, selection, NULL);
|
|
}
|
|
|
|
static gboolean
|
|
gdk_wayland_drag_context_drop_status (GdkDragContext *context)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
static GdkAtom
|
|
gdk_wayland_drag_context_get_selection (GdkDragContext *context)
|
|
{
|
|
return gdk_atom_intern_static_string ("GdkWaylandSelection");
|
|
}
|
|
|
|
static void
|
|
gdk_wayland_drag_context_init (GdkWaylandDragContext *context_wayland)
|
|
{
|
|
GdkDragContext *context;
|
|
|
|
context = GDK_DRAG_CONTEXT (context_wayland);
|
|
contexts = g_list_prepend (contexts, context);
|
|
|
|
context->action = GDK_ACTION_COPY;
|
|
context->suggested_action = GDK_ACTION_COPY;
|
|
context->actions = GDK_ACTION_COPY | GDK_ACTION_MOVE;
|
|
}
|
|
|
|
static GdkWindow *
|
|
gdk_wayland_drag_context_get_drag_window (GdkDragContext *context)
|
|
{
|
|
return GDK_WAYLAND_DRAG_CONTEXT (context)->dnd_window;
|
|
}
|
|
|
|
static void
|
|
gdk_wayland_drag_context_set_hotspot (GdkDragContext *context,
|
|
gint hot_x,
|
|
gint hot_y)
|
|
{
|
|
GdkWaylandDragContext *context_wayland = GDK_WAYLAND_DRAG_CONTEXT (context);
|
|
gint prev_hot_x = context_wayland->hot_x;
|
|
gint prev_hot_y = context_wayland->hot_y;
|
|
const GdkRectangle damage_rect = { .width = 1, .height = 1 };
|
|
|
|
context_wayland->hot_x = hot_x;
|
|
context_wayland->hot_y = hot_y;
|
|
|
|
if (prev_hot_x == hot_x && prev_hot_y == hot_y)
|
|
return;
|
|
|
|
_gdk_wayland_window_offset_next_wl_buffer (context_wayland->dnd_window,
|
|
-hot_x, -hot_y);
|
|
gdk_window_invalidate_rect (context_wayland->dnd_window, &damage_rect, FALSE);
|
|
}
|
|
|
|
static void
|
|
gdk_wayland_drag_context_class_init (GdkWaylandDragContextClass *klass)
|
|
{
|
|
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
|
GdkDragContextClass *context_class = GDK_DRAG_CONTEXT_CLASS (klass);
|
|
|
|
object_class->finalize = gdk_wayland_drag_context_finalize;
|
|
|
|
context_class->find_window = gdk_wayland_drag_context_find_window;
|
|
context_class->drag_status = gdk_wayland_drag_context_drag_status;
|
|
context_class->drag_motion = gdk_wayland_drag_context_drag_motion;
|
|
context_class->drag_abort = gdk_wayland_drag_context_drag_abort;
|
|
context_class->drag_drop = gdk_wayland_drag_context_drag_drop;
|
|
context_class->drop_reply = gdk_wayland_drag_context_drop_reply;
|
|
context_class->drop_finish = gdk_wayland_drag_context_drop_finish;
|
|
context_class->drop_status = gdk_wayland_drag_context_drop_status;
|
|
context_class->get_selection = gdk_wayland_drag_context_get_selection;
|
|
context_class->get_drag_window = gdk_wayland_drag_context_get_drag_window;
|
|
context_class->set_hotspot = gdk_wayland_drag_context_set_hotspot;
|
|
}
|
|
|
|
GdkDragProtocol
|
|
_gdk_wayland_window_get_drag_protocol (GdkWindow *window, GdkWindow **target)
|
|
{
|
|
return GDK_DRAG_PROTO_WAYLAND;
|
|
}
|
|
|
|
void
|
|
_gdk_wayland_window_register_dnd (GdkWindow *window)
|
|
{
|
|
}
|
|
|
|
static GdkWindow *
|
|
create_dnd_window (GdkScreen *screen)
|
|
{
|
|
GdkWindowAttr attrs;
|
|
guint mask;
|
|
|
|
attrs.x = attrs.y = 0;
|
|
attrs.width = attrs.height = 100;
|
|
attrs.wclass = GDK_INPUT_OUTPUT;
|
|
attrs.window_type = GDK_WINDOW_TEMP;
|
|
attrs.type_hint = GDK_WINDOW_TYPE_HINT_DND;
|
|
attrs.visual = gdk_screen_get_system_visual (screen);
|
|
|
|
mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_TYPE_HINT;
|
|
|
|
return gdk_window_new (gdk_screen_get_root_window (screen), &attrs, mask);
|
|
}
|
|
|
|
GdkDragContext *
|
|
_gdk_wayland_window_drag_begin (GdkWindow *window,
|
|
GdkDevice *device,
|
|
GList *targets,
|
|
gint x_root,
|
|
gint y_root)
|
|
{
|
|
GdkWaylandDragContext *context_wayland;
|
|
GdkWaylandDisplay *display_wayland;
|
|
GdkDragContext *context;
|
|
GdkWindow *toplevel;
|
|
GList *l;
|
|
|
|
toplevel = _gdk_device_window_at_position (device, NULL, NULL, NULL, TRUE);
|
|
|
|
context_wayland = g_object_new (GDK_TYPE_WAYLAND_DRAG_CONTEXT, NULL);
|
|
context = GDK_DRAG_CONTEXT (context_wayland);
|
|
context->source_window = g_object_ref (window);
|
|
context->is_source = TRUE;
|
|
context->targets = g_list_copy (targets);
|
|
|
|
gdk_drag_context_set_device (context, device);
|
|
display_wayland = GDK_WAYLAND_DISPLAY (gdk_device_get_display (device));
|
|
|
|
context_wayland->dnd_window = create_dnd_window (gdk_window_get_screen (window));
|
|
context_wayland->dnd_surface = gdk_wayland_window_get_wl_surface (context_wayland->dnd_window);
|
|
context_wayland->data_source =
|
|
gdk_wayland_selection_get_data_source (window,
|
|
gdk_wayland_drag_context_get_selection (context));
|
|
|
|
for (l = context->targets; l; l = l->next)
|
|
{
|
|
gchar *mimetype = gdk_atom_name (l->data);
|
|
|
|
wl_data_source_offer (context_wayland->data_source, mimetype);
|
|
g_free (mimetype);
|
|
}
|
|
|
|
wl_data_device_start_drag (gdk_wayland_device_get_data_device (device),
|
|
context_wayland->data_source,
|
|
gdk_wayland_window_get_wl_surface (toplevel),
|
|
context_wayland->dnd_surface,
|
|
_gdk_wayland_display_get_serial (display_wayland));
|
|
|
|
return context;
|
|
}
|
|
|
|
GdkDragContext *
|
|
_gdk_wayland_drop_context_new (struct wl_data_device *data_device)
|
|
{
|
|
GdkWaylandDragContext *context_wayland;
|
|
GdkDragContext *context;
|
|
|
|
context_wayland = g_object_new (GDK_TYPE_WAYLAND_DRAG_CONTEXT, NULL);
|
|
context = GDK_DRAG_CONTEXT (context_wayland);
|
|
context->is_source = FALSE;
|
|
|
|
return context;
|
|
}
|
|
|
|
void
|
|
gdk_wayland_drop_context_update_targets (GdkDragContext *context)
|
|
{
|
|
GdkDisplay *display;
|
|
GdkDevice *device;
|
|
|
|
device = gdk_drag_context_get_device (context);
|
|
display = gdk_device_get_display (device);
|
|
g_list_free (context->targets);
|
|
context->targets = g_list_copy (gdk_wayland_selection_get_targets (display,
|
|
gdk_drag_get_selection (context)));
|
|
}
|
|
|
|
void
|
|
_gdk_wayland_drag_context_set_coords (GdkDragContext *context,
|
|
gdouble x,
|
|
gdouble y)
|
|
{
|
|
GdkWaylandDragContext *context_wayland;
|
|
|
|
context_wayland = GDK_WAYLAND_DRAG_CONTEXT (context);
|
|
context_wayland->x = x;
|
|
context_wayland->y = y;
|
|
}
|
|
|
|
void
|
|
_gdk_wayland_drag_context_set_source_window (GdkDragContext *context,
|
|
GdkWindow *window)
|
|
{
|
|
if (context->source_window)
|
|
g_object_unref (context->source_window);
|
|
|
|
context->source_window = window ? g_object_ref (window) : NULL;
|
|
}
|
|
|
|
void
|
|
_gdk_wayland_drag_context_set_dest_window (GdkDragContext *context,
|
|
GdkWindow *dest_window,
|
|
uint32_t serial)
|
|
{
|
|
if (context->dest_window)
|
|
g_object_unref (context->dest_window);
|
|
|
|
context->dest_window = dest_window ? g_object_ref (dest_window) : NULL;
|
|
GDK_WAYLAND_DRAG_CONTEXT (context)->serial = serial;
|
|
gdk_wayland_drop_context_update_targets (context);
|
|
}
|
|
|
|
GdkDragContext *
|
|
gdk_wayland_drag_context_lookup_by_data_source (struct wl_data_source *source)
|
|
{
|
|
GList *l;
|
|
|
|
for (l = contexts; l; l = l->next)
|
|
{
|
|
GdkWaylandDragContext *wayland_context = l->data;
|
|
|
|
if (wayland_context->data_source == source)
|
|
return l->data;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
GdkDragContext *
|
|
gdk_wayland_drag_context_lookup_by_source_window (GdkWindow *window)
|
|
{
|
|
GList *l;
|
|
|
|
for (l = contexts; l; l = l->next)
|
|
{
|
|
if (window == gdk_drag_context_get_source_window (l->data))
|
|
return l->data;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
struct wl_data_source *
|
|
gdk_wayland_drag_context_get_data_source (GdkDragContext *context)
|
|
{
|
|
return GDK_WAYLAND_DRAG_CONTEXT (context)->data_source;
|
|
}
|