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Learning_GTK4_tree/gdk/wayland/gdkpopup-wayland.c

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2023-12-12 11:36:42 +01:00
/*
* Copyright © 2010 Intel Corporation
*
* 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 <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"
static void update_popup_layout_state (GdkWaylandPopup *wayland_popup,
int x,
int y,
int width,
int height,
GdkPopupLayout *layout);
/* {{{ Utilities */
static gboolean
is_realized_shell_surface (GdkWaylandSurface *impl)
{
return (impl->display_server.xdg_surface ||
impl->display_server.zxdg_surface_v6);
}
static enum xdg_positioner_anchor
rect_anchor_to_anchor (GdkGravity rect_anchor)
{
switch (rect_anchor)
{
case GDK_GRAVITY_NORTH_WEST:
case GDK_GRAVITY_STATIC:
return XDG_POSITIONER_ANCHOR_TOP_LEFT;
case GDK_GRAVITY_NORTH:
return XDG_POSITIONER_ANCHOR_TOP;
case GDK_GRAVITY_NORTH_EAST:
return XDG_POSITIONER_ANCHOR_TOP_RIGHT;
case GDK_GRAVITY_WEST:
return XDG_POSITIONER_ANCHOR_LEFT;
case GDK_GRAVITY_CENTER:
return XDG_POSITIONER_ANCHOR_NONE;
case GDK_GRAVITY_EAST:
return XDG_POSITIONER_ANCHOR_RIGHT;
case GDK_GRAVITY_SOUTH_WEST:
return XDG_POSITIONER_ANCHOR_BOTTOM_LEFT;
case GDK_GRAVITY_SOUTH:
return XDG_POSITIONER_ANCHOR_BOTTOM;
case GDK_GRAVITY_SOUTH_EAST:
return XDG_POSITIONER_ANCHOR_BOTTOM_RIGHT;
default:
g_assert_not_reached ();
}
}
static enum xdg_positioner_gravity
surface_anchor_to_gravity (GdkGravity rect_anchor)
{
switch (rect_anchor)
{
case GDK_GRAVITY_NORTH_WEST:
case GDK_GRAVITY_STATIC:
return XDG_POSITIONER_GRAVITY_BOTTOM_RIGHT;
case GDK_GRAVITY_NORTH:
return XDG_POSITIONER_GRAVITY_BOTTOM;
case GDK_GRAVITY_NORTH_EAST:
return XDG_POSITIONER_GRAVITY_BOTTOM_LEFT;
case GDK_GRAVITY_WEST:
return XDG_POSITIONER_GRAVITY_RIGHT;
case GDK_GRAVITY_CENTER:
return XDG_POSITIONER_GRAVITY_NONE;
case GDK_GRAVITY_EAST:
return XDG_POSITIONER_GRAVITY_LEFT;
case GDK_GRAVITY_SOUTH_WEST:
return XDG_POSITIONER_GRAVITY_TOP_RIGHT;
case GDK_GRAVITY_SOUTH:
return XDG_POSITIONER_GRAVITY_TOP;
case GDK_GRAVITY_SOUTH_EAST:
return XDG_POSITIONER_GRAVITY_TOP_LEFT;
default:
g_assert_not_reached ();
}
}
static enum zxdg_positioner_v6_anchor
rect_anchor_to_anchor_legacy (GdkGravity rect_anchor)
{
switch (rect_anchor)
{
case GDK_GRAVITY_NORTH_WEST:
case GDK_GRAVITY_STATIC:
return (ZXDG_POSITIONER_V6_ANCHOR_TOP |
ZXDG_POSITIONER_V6_ANCHOR_LEFT);
case GDK_GRAVITY_NORTH:
return ZXDG_POSITIONER_V6_ANCHOR_TOP;
case GDK_GRAVITY_NORTH_EAST:
return (ZXDG_POSITIONER_V6_ANCHOR_TOP |
ZXDG_POSITIONER_V6_ANCHOR_RIGHT);
case GDK_GRAVITY_WEST:
return ZXDG_POSITIONER_V6_ANCHOR_LEFT;
case GDK_GRAVITY_CENTER:
return ZXDG_POSITIONER_V6_ANCHOR_NONE;
case GDK_GRAVITY_EAST:
return ZXDG_POSITIONER_V6_ANCHOR_RIGHT;
case GDK_GRAVITY_SOUTH_WEST:
return (ZXDG_POSITIONER_V6_ANCHOR_BOTTOM |
ZXDG_POSITIONER_V6_ANCHOR_LEFT);
case GDK_GRAVITY_SOUTH:
return ZXDG_POSITIONER_V6_ANCHOR_BOTTOM;
case GDK_GRAVITY_SOUTH_EAST:
return (ZXDG_POSITIONER_V6_ANCHOR_BOTTOM |
ZXDG_POSITIONER_V6_ANCHOR_RIGHT);
default:
g_assert_not_reached ();
}
return (ZXDG_POSITIONER_V6_ANCHOR_TOP |
ZXDG_POSITIONER_V6_ANCHOR_LEFT);
}
static enum zxdg_positioner_v6_gravity
surface_anchor_to_gravity_legacy (GdkGravity rect_anchor)
{
switch (rect_anchor)
{
case GDK_GRAVITY_NORTH_WEST:
case GDK_GRAVITY_STATIC:
return (ZXDG_POSITIONER_V6_GRAVITY_BOTTOM |
ZXDG_POSITIONER_V6_GRAVITY_RIGHT);
case GDK_GRAVITY_NORTH:
return ZXDG_POSITIONER_V6_GRAVITY_BOTTOM;
case GDK_GRAVITY_NORTH_EAST:
return (ZXDG_POSITIONER_V6_GRAVITY_BOTTOM |
ZXDG_POSITIONER_V6_GRAVITY_LEFT);
case GDK_GRAVITY_WEST:
return ZXDG_POSITIONER_V6_GRAVITY_RIGHT;
case GDK_GRAVITY_CENTER:
return ZXDG_POSITIONER_V6_GRAVITY_NONE;
case GDK_GRAVITY_EAST:
return ZXDG_POSITIONER_V6_GRAVITY_LEFT;
case GDK_GRAVITY_SOUTH_WEST:
return (ZXDG_POSITIONER_V6_GRAVITY_TOP |
ZXDG_POSITIONER_V6_GRAVITY_RIGHT);
case GDK_GRAVITY_SOUTH:
return ZXDG_POSITIONER_V6_GRAVITY_TOP;
case GDK_GRAVITY_SOUTH_EAST:
return (ZXDG_POSITIONER_V6_GRAVITY_TOP |
ZXDG_POSITIONER_V6_GRAVITY_LEFT);
default:
g_assert_not_reached ();
}
return (ZXDG_POSITIONER_V6_GRAVITY_BOTTOM |
ZXDG_POSITIONER_V6_GRAVITY_RIGHT);
}
/* }}} */
/* {{{ GdkWaylandPopup definition */
/**
* GdkWaylandPopup:
*
* The Wayland implementation of `GdkPopup`.
*/
struct _GdkWaylandPopup
{
GdkWaylandSurface parent_instance;
struct {
struct xdg_popup *xdg_popup;
struct zxdg_popup_v6 *zxdg_popup_v6;
} display_server;
PopupState state;
unsigned int thaw_upon_show : 1;
GdkPopupLayout *layout;
int unconstrained_width;
int unconstrained_height;
struct {
int x;
int y;
int width;
int height;
uint32_t repositioned_token;
gboolean has_repositioned_token;
} pending;
struct {
int x;
int y;
} next_layout;
uint32_t reposition_token;
uint32_t received_reposition_token;
GdkSeat *grab_input_seat;
};
typedef struct
{
GdkWaylandSurfaceClass parent_class;
} GdkWaylandPopupClass;
static void gdk_wayland_popup_iface_init (GdkPopupInterface *iface);
G_DEFINE_TYPE_WITH_CODE (GdkWaylandPopup, gdk_wayland_popup, GDK_TYPE_WAYLAND_SURFACE,
G_IMPLEMENT_INTERFACE (GDK_TYPE_POPUP,
gdk_wayland_popup_iface_init))
/* }}} */
/* {{{ Popup implementation */
static GdkSurface *
get_popup_toplevel (GdkSurface *surface)
{
if (surface->parent)
return get_popup_toplevel (surface->parent);
else
return surface;
}
static void
freeze_popup_toplevel_state (GdkWaylandPopup *wayland_popup)
{
GdkSurface *toplevel;
toplevel = get_popup_toplevel (GDK_SURFACE (wayland_popup));
gdk_wayland_surface_freeze_state (toplevel);
}
static void
thaw_popup_toplevel_state (GdkWaylandPopup *wayland_popup)
{
GdkSurface *toplevel;
toplevel = get_popup_toplevel (GDK_SURFACE (wayland_popup));
gdk_wayland_surface_thaw_state (toplevel);
}
static void
gdk_wayland_popup_hide_surface (GdkWaylandSurface *wayland_surface)
{
GdkWaylandPopup *popup = GDK_WAYLAND_POPUP (wayland_surface);
GdkSurface *surface = GDK_SURFACE (popup);
GdkDisplay *display = gdk_surface_get_display (surface);
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
g_clear_pointer (&popup->display_server.xdg_popup, xdg_popup_destroy);
g_clear_pointer (&popup->display_server.zxdg_popup_v6, zxdg_popup_v6_destroy);
display_wayland->current_popups =
g_list_remove (display_wayland->current_popups, surface);
display_wayland->current_grabbing_popups =
g_list_remove (display_wayland->current_grabbing_popups, surface);
popup->thaw_upon_show = TRUE;
gdk_surface_freeze_updates (surface);
switch (popup->state)
{
case POPUP_STATE_WAITING_FOR_REPOSITIONED:
gdk_surface_thaw_updates (surface);
G_GNUC_FALLTHROUGH;
case POPUP_STATE_WAITING_FOR_CONFIGURE:
case POPUP_STATE_WAITING_FOR_FRAME:
thaw_popup_toplevel_state (popup);
break;
case POPUP_STATE_IDLE:
break;
default:
g_assert_not_reached ();
}
popup->state = POPUP_STATE_IDLE;
g_clear_pointer (&popup->layout, gdk_popup_layout_unref);
}
static gboolean
is_realized_popup (GdkWaylandSurface *impl)
{
GdkWaylandPopup *popup;
if (!GDK_IS_WAYLAND_POPUP (impl))
return FALSE;
popup = GDK_WAYLAND_POPUP (impl);
return (popup->display_server.xdg_popup ||
popup->display_server.zxdg_popup_v6);
}
static void
gdk_wayland_popup_handle_frame (GdkWaylandSurface *surface)
{
GdkWaylandPopup *wayland_popup = GDK_WAYLAND_POPUP (surface);
switch (wayland_popup->state)
{
case POPUP_STATE_IDLE:
case POPUP_STATE_WAITING_FOR_REPOSITIONED:
case POPUP_STATE_WAITING_FOR_CONFIGURE:
break;
case POPUP_STATE_WAITING_FOR_FRAME:
wayland_popup->state = POPUP_STATE_IDLE;
thaw_popup_toplevel_state (wayland_popup);
break;
default:
g_assert_not_reached ();
}
}
static gboolean
gdk_wayland_popup_compute_size (GdkSurface *surface)
{
GdkWaylandPopup *wayland_popup = GDK_WAYLAND_POPUP (surface);
GdkWaylandSurface *wayland_surface = GDK_WAYLAND_SURFACE (surface);
if (wayland_surface->next_layout.surface_geometry_dirty)
{
int x, y, width, height;
x = wayland_popup->next_layout.x - wayland_surface->shadow_left;
y = wayland_popup->next_layout.y - wayland_surface->shadow_top;
width = wayland_surface->next_layout.configured_width +
(wayland_surface->shadow_left + wayland_surface->shadow_right);
height = wayland_surface->next_layout.configured_height +
(wayland_surface->shadow_top + wayland_surface->shadow_bottom);
gdk_wayland_surface_move_resize (surface, x, y, width, height);
wayland_surface->next_layout.surface_geometry_dirty = FALSE;
}
return FALSE;
}
static void
gdk_wayland_popup_handle_configure (GdkWaylandSurface *wayland_surface)
{
GdkSurface *surface = GDK_SURFACE (wayland_surface);
GdkWaylandPopup *wayland_popup = GDK_WAYLAND_POPUP (wayland_surface);
GdkRectangle parent_geometry;
int x, y, width, height;
if (wayland_popup->display_server.xdg_popup)
{
xdg_surface_ack_configure (wayland_surface->display_server.xdg_surface,
wayland_surface->pending.serial);
}
else if (wayland_popup->display_server.zxdg_popup_v6)
{
zxdg_surface_v6_ack_configure (wayland_surface->display_server.zxdg_surface_v6,
wayland_surface->pending.serial);
}
else
g_warn_if_reached ();
if (wayland_popup->pending.has_repositioned_token)
{
wayland_popup->received_reposition_token =
wayland_popup->pending.repositioned_token;
wayland_popup->pending.has_repositioned_token = FALSE;
}
switch (wayland_popup->state)
{
case POPUP_STATE_WAITING_FOR_REPOSITIONED:
if (wayland_popup->received_reposition_token != wayland_popup->reposition_token)
return;
else
gdk_surface_thaw_updates (surface);
G_GNUC_FALLTHROUGH;
case POPUP_STATE_WAITING_FOR_CONFIGURE:
wayland_popup->state = POPUP_STATE_WAITING_FOR_FRAME;
break;
case POPUP_STATE_IDLE:
case POPUP_STATE_WAITING_FOR_FRAME:
break;
default:
g_assert_not_reached ();
}
x = wayland_popup->pending.x;
y = wayland_popup->pending.y;
width = wayland_popup->pending.width;
height = wayland_popup->pending.height;
gdk_wayland_surface_get_window_geometry (surface->parent, &parent_geometry);
x += parent_geometry.x;
y += parent_geometry.y;
update_popup_layout_state (wayland_popup,
x, y,
width, height,
wayland_popup->layout);
wayland_popup->next_layout.x = x;
wayland_popup->next_layout.y = y;
wayland_surface->next_layout.configured_width = width;
wayland_surface->next_layout.configured_height = height;
wayland_surface->next_layout.surface_geometry_dirty = TRUE;
gdk_surface_request_layout (surface);
}
static void
gdk_wayland_surface_handle_configure_popup (GdkWaylandPopup *wayland_popup,
int32_t x,
int32_t y,
int32_t width,
int32_t height)
{
wayland_popup->pending.x = x;
wayland_popup->pending.y = y;
wayland_popup->pending.width = width;
wayland_popup->pending.height = height;
}
static void
xdg_popup_configure (void *data,
struct xdg_popup *xdg_popup,
int32_t x,
int32_t y,
int32_t width,
int32_t height)
{
GdkWaylandPopup *wayland_popup = GDK_WAYLAND_POPUP (data);
gdk_wayland_surface_handle_configure_popup (wayland_popup, x, y, width, height);
}
static void
xdg_popup_done (void *data,
struct xdg_popup *xdg_popup)
{
GdkWaylandPopup *wayland_popup = GDK_WAYLAND_POPUP (data);
GdkSurface *surface = GDK_SURFACE (wayland_popup);
GDK_DISPLAY_DEBUG (gdk_surface_get_display (surface), EVENTS, "done %p", surface);
gdk_surface_hide (surface);
}
static void
xdg_popup_repositioned (void *data,
struct xdg_popup *xdg_popup,
uint32_t token)
{
GdkWaylandPopup *wayland_popup = GDK_WAYLAND_POPUP (data);
GDK_DISPLAY_DEBUG (gdk_surface_get_display (GDK_SURFACE (wayland_popup)), EVENTS,
"repositioned %p", wayland_popup);
if (wayland_popup->state != POPUP_STATE_WAITING_FOR_REPOSITIONED)
{
g_warning ("Unexpected xdg_popup.repositioned event, probably buggy compositor");
return;
}
wayland_popup->pending.repositioned_token = token;
wayland_popup->pending.has_repositioned_token = TRUE;
}
static const struct xdg_popup_listener xdg_popup_listener = {
xdg_popup_configure,
xdg_popup_done,
xdg_popup_repositioned,
};
static void
zxdg_popup_v6_configure (void *data,
struct zxdg_popup_v6 *xdg_popup,
int32_t x,
int32_t y,
int32_t width,
int32_t height)
{
GdkWaylandPopup *wayland_popup = GDK_WAYLAND_POPUP (data);
gdk_wayland_surface_handle_configure_popup (wayland_popup, x, y, width, height);
}
static void
zxdg_popup_v6_done (void *data,
struct zxdg_popup_v6 *xdg_popup)
{
GdkWaylandPopup *wayland_popup = GDK_WAYLAND_POPUP (data);
GdkSurface *surface = GDK_SURFACE (wayland_popup);
GDK_DEBUG (EVENTS, "done %p", surface);
gdk_surface_hide (surface);
}
static const struct zxdg_popup_v6_listener zxdg_popup_v6_listener = {
zxdg_popup_v6_configure,
zxdg_popup_v6_done,
};
static void
calculate_popup_rect (GdkWaylandPopup *wayland_popup,
GdkPopupLayout *layout,
GdkRectangle *out_rect)
{
int width, height;
GdkRectangle anchor_rect;
int dx, dy;
int shadow_left, shadow_right, shadow_top, shadow_bottom;
int x = 0, y = 0;
gdk_popup_layout_get_shadow_width (layout,
&shadow_left,
&shadow_right,
&shadow_top,
&shadow_bottom);
width = (wayland_popup->unconstrained_width - (shadow_left + shadow_right));
height = (wayland_popup->unconstrained_height - (shadow_top + shadow_bottom));
anchor_rect = *gdk_popup_layout_get_anchor_rect (layout);
gdk_popup_layout_get_offset (layout, &dx, &dy);
anchor_rect.x += dx;
anchor_rect.y += dy;
switch (gdk_popup_layout_get_rect_anchor (layout))
{
default:
case GDK_GRAVITY_STATIC:
case GDK_GRAVITY_NORTH_WEST:
x = anchor_rect.x;
y = anchor_rect.y;
break;
case GDK_GRAVITY_NORTH:
x = anchor_rect.x + (anchor_rect.width / 2);
y = anchor_rect.y;
break;
case GDK_GRAVITY_NORTH_EAST:
x = anchor_rect.x + anchor_rect.width;
y = anchor_rect.y;
break;
case GDK_GRAVITY_WEST:
x = anchor_rect.x;
y = anchor_rect.y + (anchor_rect.height / 2);
break;
case GDK_GRAVITY_CENTER:
x = anchor_rect.x + (anchor_rect.width / 2);
y = anchor_rect.y + (anchor_rect.height / 2);
break;
case GDK_GRAVITY_EAST:
x = anchor_rect.x + anchor_rect.width;
y = anchor_rect.y + (anchor_rect.height / 2);
break;
case GDK_GRAVITY_SOUTH_WEST:
x = anchor_rect.x;
y = anchor_rect.y + anchor_rect.height;
break;
case GDK_GRAVITY_SOUTH:
x = anchor_rect.x + (anchor_rect.width / 2);
y = anchor_rect.y + anchor_rect.height;
break;
case GDK_GRAVITY_SOUTH_EAST:
x = anchor_rect.x + anchor_rect.width;
y = anchor_rect.y + anchor_rect.height;
break;
}
switch (gdk_popup_layout_get_surface_anchor (layout))
{
default:
case GDK_GRAVITY_STATIC:
case GDK_GRAVITY_NORTH_WEST:
break;
case GDK_GRAVITY_NORTH:
x -= width / 2;
break;
case GDK_GRAVITY_NORTH_EAST:
x -= width;
break;
case GDK_GRAVITY_WEST:
y -= height / 2;
break;
case GDK_GRAVITY_CENTER:
x -= width / 2;
y -= height / 2;
break;
case GDK_GRAVITY_EAST:
x -= width;
y -= height / 2;
break;
case GDK_GRAVITY_SOUTH_WEST:
y -= height;
break;
case GDK_GRAVITY_SOUTH:
x -= width / 2;
y -= height;
break;
case GDK_GRAVITY_SOUTH_EAST:
x -= width;
y -= height;
break;
}
*out_rect = (GdkRectangle) {
.x = x,
.y = y,
.width = width,
.height = height
};
}
static void
update_popup_layout_state (GdkWaylandPopup *wayland_popup,
int x,
int y,
int width,
int height,
GdkPopupLayout *layout)
{
GdkRectangle best_rect;
GdkRectangle flipped_rect;
GdkGravity rect_anchor;
GdkGravity surface_anchor;
GdkAnchorHints anchor_hints;
rect_anchor = gdk_popup_layout_get_rect_anchor (layout);
surface_anchor = gdk_popup_layout_get_surface_anchor (layout);
anchor_hints = gdk_popup_layout_get_anchor_hints (layout);
calculate_popup_rect (wayland_popup, layout, &best_rect);
flipped_rect = best_rect;
if (x != best_rect.x &&
anchor_hints & GDK_ANCHOR_FLIP_X)
{
GdkRectangle flipped_x_rect;
GdkGravity flipped_rect_anchor;
GdkGravity flipped_surface_anchor;
GdkPopupLayout *flipped_layout;
flipped_rect_anchor = gdk_gravity_flip_horizontally (rect_anchor);
flipped_surface_anchor = gdk_gravity_flip_horizontally (surface_anchor);
flipped_layout = gdk_popup_layout_copy (layout);
gdk_popup_layout_set_rect_anchor (flipped_layout,
flipped_rect_anchor);
gdk_popup_layout_set_surface_anchor (flipped_layout,
flipped_surface_anchor);
calculate_popup_rect (wayland_popup,
flipped_layout,
&flipped_x_rect);
gdk_popup_layout_unref (flipped_layout);
if (flipped_x_rect.x == x)
flipped_rect.x = x;
}
if (y != best_rect.y &&
anchor_hints & GDK_ANCHOR_FLIP_Y)
{
GdkRectangle flipped_y_rect;
GdkGravity flipped_rect_anchor;
GdkGravity flipped_surface_anchor;
GdkPopupLayout *flipped_layout;
flipped_rect_anchor = gdk_gravity_flip_vertically (rect_anchor);
flipped_surface_anchor = gdk_gravity_flip_vertically (surface_anchor);
flipped_layout = gdk_popup_layout_copy (layout);
gdk_popup_layout_set_rect_anchor (flipped_layout,
flipped_rect_anchor);
gdk_popup_layout_set_surface_anchor (flipped_layout,
flipped_surface_anchor);
calculate_popup_rect (wayland_popup,
flipped_layout,
&flipped_y_rect);
gdk_popup_layout_unref (flipped_layout);
if (flipped_y_rect.y == y)
flipped_rect.y = y;
}
if (flipped_rect.x != best_rect.x)
{
rect_anchor = gdk_gravity_flip_horizontally (rect_anchor);
surface_anchor = gdk_gravity_flip_horizontally (surface_anchor);
}
if (flipped_rect.y != best_rect.y)
{
rect_anchor = gdk_gravity_flip_vertically (rect_anchor);
surface_anchor = gdk_gravity_flip_vertically (surface_anchor);
}
GDK_SURFACE (wayland_popup)->popup.rect_anchor = rect_anchor;
GDK_SURFACE (wayland_popup)->popup.surface_anchor = surface_anchor;
}
static gpointer
create_dynamic_positioner (GdkWaylandPopup *wayland_popup,
int width,
int height,
GdkPopupLayout *layout,
gboolean ack_parent_configure)
{
GdkSurface *surface = GDK_SURFACE (wayland_popup);
GdkSurface *parent = surface->parent;
GdkWaylandSurface *parent_impl = GDK_WAYLAND_SURFACE (parent);
GdkWaylandDisplay *display =
GDK_WAYLAND_DISPLAY (gdk_surface_get_display (surface));
GdkRectangle geometry;
uint32_t constraint_adjustment = ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_NONE;
GdkRectangle anchor_rect;
int rect_anchor_dx;
int rect_anchor_dy;
GdkGravity rect_anchor;
GdkGravity surface_anchor;
GdkAnchorHints anchor_hints;
GdkRectangle parent_geometry;
int shadow_left;
int shadow_right;
int shadow_top;
int shadow_bottom;
gdk_popup_layout_get_shadow_width (layout,
&shadow_left,
&shadow_right,
&shadow_top,
&shadow_bottom);
geometry = (GdkRectangle) {
.x = shadow_left,
.y = shadow_top,
.width = width - (shadow_left + shadow_right),
.height = height - (shadow_top + shadow_bottom),
};
gdk_wayland_surface_get_window_geometry (surface->parent, &parent_geometry);
anchor_rect = *gdk_popup_layout_get_anchor_rect (layout);
/* Wayland protocol requires that the anchor rect is specified
* wrt. to the parent geometry, and that it is non-empty and
* contained in the parent geometry.
*/
if (!gdk_rectangle_intersect (&parent_geometry, &anchor_rect, &anchor_rect))
{
anchor_rect.x = 0;
anchor_rect.y = 0;
anchor_rect.width = 1;
anchor_rect.height = 1;
}
else
{
anchor_rect.x -= parent_geometry.x;
anchor_rect.y -= parent_geometry.y;
}
gdk_popup_layout_get_offset (layout, &rect_anchor_dx, &rect_anchor_dy);
rect_anchor = gdk_popup_layout_get_rect_anchor (layout);
surface_anchor = gdk_popup_layout_get_surface_anchor (layout);
anchor_hints = gdk_popup_layout_get_anchor_hints (layout);
switch (display->shell_variant)
{
case GDK_WAYLAND_SHELL_VARIANT_XDG_SHELL:
{
struct xdg_positioner *positioner;
enum xdg_positioner_anchor anchor;
enum xdg_positioner_gravity gravity;
positioner = xdg_wm_base_create_positioner (display->xdg_wm_base);
xdg_positioner_set_size (positioner, geometry.width, geometry.height);
xdg_positioner_set_anchor_rect (positioner,
anchor_rect.x,
anchor_rect.y,
anchor_rect.width,
anchor_rect.height);
xdg_positioner_set_offset (positioner, rect_anchor_dx, rect_anchor_dy);
anchor = rect_anchor_to_anchor (rect_anchor);
xdg_positioner_set_anchor (positioner, anchor);
gravity = surface_anchor_to_gravity (surface_anchor);
xdg_positioner_set_gravity (positioner, gravity);
if (anchor_hints & GDK_ANCHOR_FLIP_X)
constraint_adjustment |= XDG_POSITIONER_CONSTRAINT_ADJUSTMENT_FLIP_X;
if (anchor_hints & GDK_ANCHOR_FLIP_Y)
constraint_adjustment |= XDG_POSITIONER_CONSTRAINT_ADJUSTMENT_FLIP_Y;
if (anchor_hints & GDK_ANCHOR_SLIDE_X)
constraint_adjustment |= XDG_POSITIONER_CONSTRAINT_ADJUSTMENT_SLIDE_X;
if (anchor_hints & GDK_ANCHOR_SLIDE_Y)
constraint_adjustment |= XDG_POSITIONER_CONSTRAINT_ADJUSTMENT_SLIDE_Y;
if (anchor_hints & GDK_ANCHOR_RESIZE_X)
constraint_adjustment |= XDG_POSITIONER_CONSTRAINT_ADJUSTMENT_RESIZE_X;
if (anchor_hints & GDK_ANCHOR_RESIZE_Y)
constraint_adjustment |= XDG_POSITIONER_CONSTRAINT_ADJUSTMENT_RESIZE_Y;
xdg_positioner_set_constraint_adjustment (positioner,
constraint_adjustment);
if (xdg_positioner_get_version (positioner) >=
XDG_POSITIONER_SET_REACTIVE_SINCE_VERSION)
xdg_positioner_set_reactive (positioner);
if (ack_parent_configure &&
xdg_positioner_get_version (positioner) >=
XDG_POSITIONER_SET_PARENT_CONFIGURE_SINCE_VERSION)
{
xdg_positioner_set_parent_size (positioner,
parent_geometry.width,
parent_geometry.height);
xdg_positioner_set_parent_configure (positioner,
parent_impl->last_configure_serial);
}
return positioner;
}
case GDK_WAYLAND_SHELL_VARIANT_ZXDG_SHELL_V6:
{
struct zxdg_positioner_v6 *positioner;
enum zxdg_positioner_v6_anchor anchor;
enum zxdg_positioner_v6_gravity gravity;
positioner = zxdg_shell_v6_create_positioner (display->zxdg_shell_v6);
zxdg_positioner_v6_set_size (positioner, geometry.width, geometry.height);
zxdg_positioner_v6_set_anchor_rect (positioner,
anchor_rect.x,
anchor_rect.y,
anchor_rect.width,
anchor_rect.height);
zxdg_positioner_v6_set_offset (positioner,
rect_anchor_dx,
rect_anchor_dy);
anchor = rect_anchor_to_anchor_legacy (rect_anchor);
zxdg_positioner_v6_set_anchor (positioner, anchor);
gravity = surface_anchor_to_gravity_legacy (surface_anchor);
zxdg_positioner_v6_set_gravity (positioner, gravity);
if (anchor_hints & GDK_ANCHOR_FLIP_X)
constraint_adjustment |= ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_FLIP_X;
if (anchor_hints & GDK_ANCHOR_FLIP_Y)
constraint_adjustment |= ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_FLIP_Y;
if (anchor_hints & GDK_ANCHOR_SLIDE_X)
constraint_adjustment |= ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_SLIDE_X;
if (anchor_hints & GDK_ANCHOR_SLIDE_Y)
constraint_adjustment |= ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_SLIDE_Y;
if (anchor_hints & GDK_ANCHOR_RESIZE_X)
constraint_adjustment |= ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_RESIZE_X;
if (anchor_hints & GDK_ANCHOR_RESIZE_Y)
constraint_adjustment |= ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_RESIZE_Y;
zxdg_positioner_v6_set_constraint_adjustment (positioner,
constraint_adjustment);
return positioner;
}
default:
g_assert_not_reached ();
}
g_assert_not_reached ();
}
static gboolean
can_map_grabbing_popup (GdkSurface *surface,
GdkSurface *parent)
{
GdkDisplay *display = gdk_surface_get_display (surface);
GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (display);
GdkSurface *top_most_popup;
if (!display_wayland->current_grabbing_popups)
return TRUE;
top_most_popup = g_list_first (display_wayland->current_grabbing_popups)->data;
return top_most_popup == parent;
}
static gboolean
gdk_wayland_surface_create_xdg_popup (GdkWaylandPopup *wayland_popup,
GdkSurface *parent,
GdkWaylandSeat *grab_input_seat,
int width,
int height,
GdkPopupLayout *layout)
{
GdkSurface *surface = GDK_SURFACE (wayland_popup);
GdkWaylandDisplay *display = GDK_WAYLAND_DISPLAY (gdk_surface_get_display (surface));
GdkWaylandSurface *impl = GDK_WAYLAND_SURFACE (surface);
GdkWaylandSurface *parent_impl = GDK_WAYLAND_SURFACE (parent);
gpointer positioner;
if (!impl->display_server.wl_surface)
return FALSE;
if (!is_realized_shell_surface (parent_impl))
return FALSE;
if (is_realized_popup (impl))
{
g_warning ("Can't map popup, already mapped");
return FALSE;
}
if (grab_input_seat &&
!can_map_grabbing_popup (surface, parent))
{
g_warning ("Tried to map a grabbing popup with a non-top most parent");
return FALSE;
}
gdk_surface_freeze_updates (surface);
positioner = create_dynamic_positioner (wayland_popup, width, height, layout, FALSE);
gdk_wayland_surface_create_xdg_surface_resources (surface);
switch (display->shell_variant)
{
case GDK_WAYLAND_SHELL_VARIANT_XDG_SHELL:
wayland_popup->display_server.xdg_popup =
xdg_surface_get_popup (impl->display_server.xdg_surface,
parent_impl->display_server.xdg_surface,
positioner);
xdg_popup_add_listener (wayland_popup->display_server.xdg_popup,
&xdg_popup_listener,
wayland_popup);
xdg_positioner_destroy (positioner);
break;
case GDK_WAYLAND_SHELL_VARIANT_ZXDG_SHELL_V6:
wayland_popup->display_server.zxdg_popup_v6 =
zxdg_surface_v6_get_popup (impl->display_server.zxdg_surface_v6,
parent_impl->display_server.zxdg_surface_v6,
positioner);
zxdg_popup_v6_add_listener (wayland_popup->display_server.zxdg_popup_v6,
&zxdg_popup_v6_listener,
wayland_popup);
zxdg_positioner_v6_destroy (positioner);
break;
default:
g_assert_not_reached ();
}
wayland_popup->received_reposition_token = 0;
wayland_popup->reposition_token = 0;
gdk_popup_layout_get_shadow_width (layout,
&impl->shadow_left,
&impl->shadow_right,
&impl->shadow_top,
&impl->shadow_bottom);
if (grab_input_seat)
{
struct wl_seat *seat;
guint32 serial;
seat = gdk_wayland_seat_get_wl_seat (GDK_SEAT (grab_input_seat));
serial = _gdk_wayland_seat_get_last_implicit_grab_serial (grab_input_seat, NULL);
switch (display->shell_variant)
{
case GDK_WAYLAND_SHELL_VARIANT_XDG_SHELL:
xdg_popup_grab (wayland_popup->display_server.xdg_popup, seat, serial);
break;
case GDK_WAYLAND_SHELL_VARIANT_ZXDG_SHELL_V6:
zxdg_popup_v6_grab (wayland_popup->display_server.zxdg_popup_v6, seat, serial);
break;
default:
g_assert_not_reached ();
}
}
gdk_profiler_add_mark (GDK_PROFILER_CURRENT_TIME, 0, "wayland", "surface commit");
wl_surface_commit (impl->display_server.wl_surface);
if (GDK_IS_POPUP (surface))
{
g_assert (wayland_popup->state == POPUP_STATE_IDLE);
wayland_popup->state = POPUP_STATE_WAITING_FOR_CONFIGURE;
freeze_popup_toplevel_state (wayland_popup);
}
display->current_popups = g_list_append (display->current_popups, surface);
if (grab_input_seat)
{
display->current_grabbing_popups =
g_list_prepend (display->current_grabbing_popups, surface);
}
return TRUE;
}
#define LAST_PROP 1
static void
gdk_wayland_popup_init (GdkWaylandPopup *popup)
{
}
static void
gdk_wayland_popup_constructed (GObject *object)
{
GdkWaylandPopup *self = GDK_WAYLAND_POPUP (object);
GdkSurface *surface = GDK_SURFACE (self);
gdk_surface_set_frame_clock (surface, gdk_surface_get_frame_clock (gdk_popup_get_parent (GDK_POPUP (self))));
G_OBJECT_CLASS (gdk_wayland_popup_parent_class)->constructed (object);
}
static void
gdk_wayland_popup_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GdkSurface *surface = GDK_SURFACE (object);
switch (prop_id)
{
case LAST_PROP + GDK_POPUP_PROP_PARENT:
g_value_set_object (value, surface->parent);
break;
case LAST_PROP + GDK_POPUP_PROP_AUTOHIDE:
g_value_set_boolean (value, surface->autohide);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gdk_wayland_popup_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GdkSurface *surface = GDK_SURFACE (object);
switch (prop_id)
{
case LAST_PROP + GDK_POPUP_PROP_PARENT:
surface->parent = g_value_dup_object (value);
if (surface->parent != NULL)
surface->parent->children = g_list_prepend (surface->parent->children, surface);
break;
case LAST_PROP + GDK_POPUP_PROP_AUTOHIDE:
surface->autohide = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gdk_wayland_popup_class_init (GdkWaylandPopupClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GdkSurfaceClass *surface_class = GDK_SURFACE_CLASS (class);
GdkWaylandSurfaceClass *wayland_surface_class = GDK_WAYLAND_SURFACE_CLASS (class);
object_class->constructed = gdk_wayland_popup_constructed;
object_class->get_property = gdk_wayland_popup_get_property;
object_class->set_property = gdk_wayland_popup_set_property;
surface_class->compute_size = gdk_wayland_popup_compute_size;
wayland_surface_class->handle_configure = gdk_wayland_popup_handle_configure;
wayland_surface_class->handle_frame = gdk_wayland_popup_handle_frame;
wayland_surface_class->hide_surface = gdk_wayland_popup_hide_surface;
gdk_popup_install_properties (object_class, 1);
}
static gboolean
is_fallback_relayout_possible (GdkWaylandPopup *wayland_popup)
{
GList *l;
for (l = GDK_SURFACE (wayland_popup)->children; l; l = l->next)
{
GdkSurface *child = l->data;
if (GDK_WAYLAND_SURFACE (child)->mapped)
return FALSE;
}
return TRUE;
}
static gboolean gdk_wayland_surface_present_popup (GdkWaylandPopup *wayland_popup,
int width,
int height,
GdkPopupLayout *layout);
static void
queue_relayout_fallback (GdkWaylandPopup *wayland_popup,
GdkPopupLayout *layout)
{
if (!is_fallback_relayout_possible (wayland_popup))
return;
gdk_wayland_surface_hide_surface (GDK_SURFACE (wayland_popup));
gdk_wayland_surface_present_popup (wayland_popup,
wayland_popup->unconstrained_width,
wayland_popup->unconstrained_height,
layout);
}
static void
do_queue_relayout (GdkWaylandPopup *wayland_popup,
int width,
int height,
GdkPopupLayout *layout)
{
struct xdg_positioner *positioner;
g_assert (is_realized_popup (GDK_WAYLAND_SURFACE (wayland_popup)));
g_assert (wayland_popup->state == POPUP_STATE_IDLE ||
wayland_popup->state == POPUP_STATE_WAITING_FOR_FRAME);
g_clear_pointer (&wayland_popup->layout, gdk_popup_layout_unref);
wayland_popup->layout = gdk_popup_layout_copy (layout);
wayland_popup->unconstrained_width = width;
wayland_popup->unconstrained_height = height;
if (!wayland_popup->display_server.xdg_popup ||
xdg_popup_get_version (wayland_popup->display_server.xdg_popup) <
XDG_POPUP_REPOSITION_SINCE_VERSION)
{
g_warning_once ("Compositor doesn't support moving popups, "
"relying on remapping");
queue_relayout_fallback (wayland_popup, layout);
return;
}
positioner = create_dynamic_positioner (wayland_popup,
width, height, layout,
TRUE);
xdg_popup_reposition (wayland_popup->display_server.xdg_popup,
positioner,
++wayland_popup->reposition_token);
xdg_positioner_destroy (positioner);
gdk_surface_freeze_updates (GDK_SURFACE (wayland_popup));
switch (wayland_popup->state)
{
case POPUP_STATE_IDLE:
freeze_popup_toplevel_state (wayland_popup);
break;
case POPUP_STATE_WAITING_FOR_FRAME:
break;
case POPUP_STATE_WAITING_FOR_CONFIGURE:
case POPUP_STATE_WAITING_FOR_REPOSITIONED:
default:
g_assert_not_reached ();
}
wayland_popup->state = POPUP_STATE_WAITING_FOR_REPOSITIONED;
}
static gboolean
is_relayout_finished (GdkSurface *surface)
{
GdkWaylandSurface *impl = GDK_WAYLAND_SURFACE (surface);
if (!impl->initial_configure_received)
return FALSE;
if (GDK_IS_WAYLAND_POPUP (surface))
{
GdkWaylandPopup *popup = GDK_WAYLAND_POPUP (surface);
if (popup->reposition_token != popup->received_reposition_token)
return FALSE;
}
return TRUE;
}
static GdkWaylandSeat *
find_grab_input_seat (GdkSurface *surface,
GdkSurface *parent)
{
GdkWaylandPopup *popup = GDK_WAYLAND_POPUP (surface);
GdkWaylandPopup *tmp_popup;
/* Use the device that was used for the grab as the device for
* the popup surface setup - so this relies on GTK taking the
* grab before showing the popup surface.
*/
if (popup->grab_input_seat)
return GDK_WAYLAND_SEAT (popup->grab_input_seat);
while (parent)
{
if (!GDK_IS_WAYLAND_POPUP (parent))
break;
tmp_popup = GDK_WAYLAND_POPUP (parent);
if (tmp_popup->grab_input_seat)
return GDK_WAYLAND_SEAT (tmp_popup->grab_input_seat);
parent = parent->parent;
}
return NULL;
}
static void
gdk_wayland_surface_map_popup (GdkWaylandPopup *wayland_popup,
int width,
int height,
GdkPopupLayout *layout)
{
GdkSurface *surface = GDK_SURFACE (wayland_popup);
GdkWaylandSurface *wayland_surface = GDK_WAYLAND_SURFACE (wayland_popup);
GdkSurface *parent;
GdkWaylandSeat *grab_input_seat;
parent = surface->parent;
if (!parent)
{
g_warning ("Couldn't map as surface %p as popup because it doesn't have a parent",
surface);
return;
}
if (surface->autohide)
grab_input_seat = find_grab_input_seat (surface, parent);
else
grab_input_seat = NULL;
if (!gdk_wayland_surface_create_xdg_popup (wayland_popup,
parent,
grab_input_seat,
width, height,
layout))
return;
wayland_popup->layout = gdk_popup_layout_copy (layout);
wayland_popup->unconstrained_width = width;
wayland_popup->unconstrained_height = height;
wayland_surface->mapped = TRUE;
}
static void
show_popup (GdkWaylandPopup *wayland_popup,
int width,
int height,
GdkPopupLayout *layout)
{
if (wayland_popup->thaw_upon_show)
{
wayland_popup->thaw_upon_show = FALSE;
gdk_surface_thaw_updates (GDK_SURFACE (wayland_popup));
}
gdk_wayland_surface_map_popup (wayland_popup, width, height, layout);
}
typedef struct
{
int width;
int height;
GdkPopupLayout *layout;
} GrabPrepareData;
static void
show_grabbing_popup (GdkSeat *seat,
GdkSurface *surface,
gpointer user_data)
{
GrabPrepareData *data = user_data;
g_return_if_fail (GDK_IS_WAYLAND_POPUP (surface));
GdkWaylandPopup *wayland_popup = GDK_WAYLAND_POPUP (surface);
show_popup (wayland_popup, data->width, data->height, data->layout);
}
static void
reposition_popup (GdkWaylandPopup *wayland_popup,
int width,
int height,
GdkPopupLayout *layout)
{
switch (wayland_popup->state)
{
case POPUP_STATE_IDLE:
case POPUP_STATE_WAITING_FOR_FRAME:
do_queue_relayout (wayland_popup, width, height, layout);
break;
case POPUP_STATE_WAITING_FOR_REPOSITIONED:
case POPUP_STATE_WAITING_FOR_CONFIGURE:
g_warn_if_reached ();
break;
default:
g_assert_not_reached ();
}
}
static gboolean
gdk_wayland_surface_present_popup (GdkWaylandPopup *wayland_popup,
int width,
int height,
GdkPopupLayout *layout)
{
GdkSurface *surface = GDK_SURFACE (wayland_popup);
GdkWaylandSurface *wayland_surface = GDK_WAYLAND_SURFACE (wayland_popup);
if (!wayland_surface->mapped)
{
if (surface->autohide)
{
GdkSeat *seat;
seat = gdk_display_get_default_seat (surface->display);
if (seat)
{
GrabPrepareData data;
GdkGrabStatus result;
data = (GrabPrepareData) {
.width = width,
.height = height,
.layout = layout,
};
result = gdk_seat_grab (seat,
surface,
GDK_SEAT_CAPABILITY_ALL,
TRUE,
NULL, NULL,
show_grabbing_popup, &data);
if (result != GDK_GRAB_SUCCESS)
{
const char *grab_status[] = {
"success", "already grabbed", "invalid time",
"not viewable", "frozen", "failed"
};
g_warning ("Grab failed: %s", grab_status[result]);
}
}
}
else
{
show_popup (wayland_popup, width, height, layout);
}
}
else
{
if (wayland_popup->unconstrained_width == width &&
wayland_popup->unconstrained_height == height &&
gdk_popup_layout_equal (wayland_popup->layout, layout))
return TRUE;
reposition_popup (wayland_popup, width, height, layout);
}
while (wayland_popup->display_server.xdg_popup && !is_relayout_finished (surface))
{
gdk_wayland_display_dispatch_queue (surface->display,
wayland_surface->event_queue);
}
if (wayland_popup->display_server.xdg_popup)
{
gdk_surface_invalidate_rect (surface, NULL);
return TRUE;
}
else
{
return FALSE;
}
}
static gboolean
gdk_wayland_popup_present (GdkPopup *popup,
int width,
int height,
GdkPopupLayout *layout)
{
return gdk_wayland_surface_present_popup (GDK_WAYLAND_POPUP (popup), width, height, layout);
}
static GdkGravity
gdk_wayland_popup_get_surface_anchor (GdkPopup *popup)
{
return GDK_SURFACE (popup)->popup.surface_anchor;
}
static GdkGravity
gdk_wayland_popup_get_rect_anchor (GdkPopup *popup)
{
return GDK_SURFACE (popup)->popup.rect_anchor;
}
static int
gdk_wayland_popup_get_position_x (GdkPopup *popup)
{
return GDK_SURFACE (popup)->x;
}
static int
gdk_wayland_popup_get_position_y (GdkPopup *popup)
{
return GDK_SURFACE (popup)->y;
}
static void
gdk_wayland_popup_iface_init (GdkPopupInterface *iface)
{
iface->present = gdk_wayland_popup_present;
iface->get_surface_anchor = gdk_wayland_popup_get_surface_anchor;
iface->get_rect_anchor = gdk_wayland_popup_get_rect_anchor;
iface->get_position_x = gdk_wayland_popup_get_position_x;
iface->get_position_y = gdk_wayland_popup_get_position_y;
}
/* }}} */
/* {{{ Private Popup API */
void
_gdk_wayland_surface_set_grab_seat (GdkSurface *surface,
GdkSeat *seat)
{
GdkWaylandPopup *popup;
g_return_if_fail (surface != NULL);
popup = GDK_WAYLAND_POPUP (surface);
popup->grab_input_seat = seat;
}
/* }}} */
/* vim:set foldmethod=marker expandtab: */