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mutter/src/wayland/meta-window-wayland.c

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2014 Red Hat
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* Written by:
* Jasper St. Pierre <jstpierre@mecheye.net>
*/
#include "config.h"
#include "wayland/meta-window-wayland.h"
#include <errno.h>
#include <string.h>
#include "backends/meta-backend-private.h"
#include "backends/meta-backend-private.h"
#include "backends/meta-logical-monitor.h"
#include "compositor/meta-surface-actor-wayland.h"
#include "core/boxes-private.h"
#include "core/stack-tracker.h"
#include "core/window-private.h"
#include "meta/meta-x11-errors.h"
#include "wayland/meta-wayland-actor-surface.h"
#include "wayland/meta-wayland-private.h"
#include "wayland/meta-wayland-surface.h"
#include "wayland/meta-wayland-xdg-shell.h"
struct _MetaWindowWayland
{
MetaWindow parent;
int geometry_scale;
MetaWaylandSerial pending_configure_serial;
gboolean has_pending_state_change;
gboolean has_pending_move;
int pending_move_x;
int pending_move_y;
int last_sent_x;
int last_sent_y;
int last_sent_width;
int last_sent_height;
gboolean has_been_shown;
};
struct _MetaWindowWaylandClass
{
MetaWindowClass parent_class;
};
G_DEFINE_TYPE (MetaWindowWayland, meta_window_wayland, META_TYPE_WINDOW)
static int
get_window_geometry_scale_for_logical_monitor (MetaLogicalMonitor *logical_monitor)
{
g_assert (logical_monitor);
if (meta_is_stage_views_scaled ())
return 1;
else
return meta_logical_monitor_get_scale (logical_monitor);
}
static void
meta_window_wayland_manage (MetaWindow *window)
{
MetaWindowWayland *wl_window = META_WINDOW_WAYLAND (window);
MetaDisplay *display = window->display;
wl_window->geometry_scale = meta_window_wayland_get_geometry_scale (window);
meta_display_register_wayland_window (display, window);
{
meta_stack_tracker_record_add (window->display->stack_tracker,
window->stamp,
0);
}
meta_wayland_surface_window_managed (window->surface, window);
}
static void
meta_window_wayland_unmanage (MetaWindow *window)
{
{
meta_stack_tracker_record_remove (window->display->stack_tracker,
window->stamp,
0);
}
meta_display_unregister_wayland_window (window->display, window);
}
static void
meta_window_wayland_ping (MetaWindow *window,
guint32 serial)
{
meta_wayland_surface_ping (window->surface, serial);
}
static void
meta_window_wayland_delete (MetaWindow *window,
guint32 timestamp)
{
meta_wayland_surface_delete (window->surface);
}
static void
meta_window_wayland_kill (MetaWindow *window)
{
MetaWaylandSurface *surface = window->surface;
struct wl_resource *resource = surface->resource;
/* Send the client an unrecoverable error to kill the client. */
wl_resource_post_error (resource,
WL_DISPLAY_ERROR_NO_MEMORY,
"User requested that we kill you. Sorry. Don't take it too personally.");
}
static void
meta_window_wayland_focus (MetaWindow *window,
guint32 timestamp)
{
if (meta_window_is_focusable (window))
meta_x11_display_set_input_focus_window (window->display->x11_display,
window,
FALSE,
timestamp);
}
static void
surface_state_changed (MetaWindow *window)
{
MetaWindowWayland *wl_window = META_WINDOW_WAYLAND (window);
/* don't send notify when the window is being unmanaged */
if (window->unmanaging)
return;
meta_wayland_surface_configure_notify (window->surface,
wl_window->last_sent_x,
wl_window->last_sent_y,
wl_window->last_sent_width,
wl_window->last_sent_height,
&wl_window->pending_configure_serial);
}
static void
meta_window_wayland_grab_op_began (MetaWindow *window,
MetaGrabOp op)
{
if (meta_grab_op_is_resizing (op))
surface_state_changed (window);
META_WINDOW_CLASS (meta_window_wayland_parent_class)->grab_op_began (window, op);
}
static void
meta_window_wayland_grab_op_ended (MetaWindow *window,
MetaGrabOp op)
{
if (meta_grab_op_is_resizing (op))
surface_state_changed (window);
META_WINDOW_CLASS (meta_window_wayland_parent_class)->grab_op_ended (window, op);
}
static void
meta_window_wayland_move_resize_internal (MetaWindow *window,
int gravity,
MetaRectangle unconstrained_rect,
MetaRectangle constrained_rect,
MetaMoveResizeFlags flags,
MetaMoveResizeResultFlags *result)
{
MetaWindowWayland *wl_window = META_WINDOW_WAYLAND (window);
gboolean can_move_now;
int configured_x;
int configured_y;
int configured_width;
int configured_height;
int geometry_scale;
g_assert (window->frame == NULL);
/* don't do anything if we're dropping the window, see #751847 */
if (window->unmanaging)
return;
configured_x = constrained_rect.x;
configured_y = constrained_rect.y;
/* The scale the window is drawn in might change depending on what monitor it
* is mainly on. Scale the configured rectangle to be in logical pixel
* coordinate space so that we can have a scale independent size to pass
* to the Wayland surface. */
geometry_scale = meta_window_wayland_get_geometry_scale (window);
if (flags & META_MOVE_RESIZE_UNMAXIMIZE)
{
/* On un-maximize, let the client decide on its size */
configured_width = 0;
configured_height = 0;
}
else
{
configured_width = constrained_rect.width / geometry_scale;
configured_height = constrained_rect.height / geometry_scale;
}
/* For wayland clients, the size is completely determined by the client,
* and while this allows to avoid some trickery with frames and the resulting
* lagging, we also need to insist a bit when the constraints would apply
* a different size than the client decides.
*
* Note that this is not generally a problem for normal toplevel windows (the
* constraints don't see the size hints, or just change the position), but
* it can be for maximized or fullscreen.
*/
if (flags & META_MOVE_RESIZE_FORCE_MOVE)
{
can_move_now = TRUE;
}
else if (flags & META_MOVE_RESIZE_WAYLAND_RESIZE)
{
/* This is a call to wl_surface_commit(), ignore the constrained_rect and
* update the real client size to match the buffer size.
*/
if (window->rect.width != unconstrained_rect.width ||
window->rect.height != unconstrained_rect.height)
{
*result |= META_MOVE_RESIZE_RESULT_RESIZED;
window->rect.width = unconstrained_rect.width;
window->rect.height = unconstrained_rect.height;
}
/* This is a commit of an attach. We should move the window to match the
* new position the client wants. */
can_move_now = TRUE;
}
else
{
/* If the size changed, or the state changed, then we have to wait until
* the client acks our configure before moving the window. */
if (constrained_rect.width != window->rect.width ||
constrained_rect.height != window->rect.height ||
(flags & META_MOVE_RESIZE_STATE_CHANGED))
{
/* If the constrained size is 1x1 and the unconstrained size is 0x0
* it means that we are trying to resize a window where the client has
* not yet committed a buffer. The 1x1 constrained size is a result of
* how the constraints code works. Lets avoid trying to have the
* client configure itself to draw on a 1x1 surface.
*
* We cannot guard against only an empty unconstrained_rect here,
* because the client may have created a xdg surface without a buffer
* attached and asked it to be maximized. In such case we should let
* it know about the expected window geometry of a maximized window,
* even though there is currently no buffer attached. */
if (unconstrained_rect.width == 0 &&
unconstrained_rect.height == 0 &&
constrained_rect.width == 1 &&
constrained_rect.height == 1)
return;
meta_wayland_surface_configure_notify (window->surface,
configured_x,
configured_y,
configured_width,
configured_height,
&wl_window->pending_configure_serial);
/* We need to wait until the resize completes before we can move */
can_move_now = FALSE;
}
else
{
/* We're just moving the window, so we don't need to wait for a configure
* and then ack to simply move the window. */
can_move_now = TRUE;
}
}
wl_window->last_sent_x = configured_x;
wl_window->last_sent_y = configured_y;
wl_window->last_sent_width = configured_width;
wl_window->last_sent_height = configured_height;
if (can_move_now)
{
int new_x = constrained_rect.x;
int new_y = constrained_rect.y;
if (new_x != window->rect.x || new_y != window->rect.y)
{
*result |= META_MOVE_RESIZE_RESULT_MOVED;
window->rect.x = new_x;
window->rect.y = new_y;
}
int new_buffer_x = new_x - window->custom_frame_extents.left;
int new_buffer_y = new_y - window->custom_frame_extents.top;
if (new_buffer_x != window->buffer_rect.x || new_buffer_y != window->buffer_rect.y)
{
*result |= META_MOVE_RESIZE_RESULT_MOVED;
window->buffer_rect.x = new_buffer_x;
window->buffer_rect.y = new_buffer_y;
}
if (flags & META_MOVE_RESIZE_WAYLAND_STATE_CHANGED)
*result |= META_MOVE_RESIZE_RESULT_STATE_CHANGED;
}
else
{
int new_x = constrained_rect.x;
int new_y = constrained_rect.y;
if (new_x != window->rect.x || new_y != window->rect.y)
{
wl_window->has_pending_move = TRUE;
wl_window->pending_move_x = new_x;
wl_window->pending_move_y = new_y;
}
wl_window->has_pending_state_change = (flags & META_MOVE_RESIZE_STATE_CHANGED) != 0;
}
}
static void
scale_size (int *width,
int *height,
float scale)
{
if (*width < G_MAXINT)
{
float new_width = (*width * scale);
*width = (int) MIN (new_width, G_MAXINT);
}
if (*height < G_MAXINT)
{
float new_height = (*height * scale);
*height = (int) MIN (new_height, G_MAXINT);
}
}
static void
scale_rect_size (MetaRectangle *rect,
float scale)
{
scale_size (&rect->width, &rect->height, scale);
}
static void
meta_window_wayland_update_main_monitor (MetaWindow *window,
MetaWindowUpdateMonitorFlags flags)
{
MetaBackend *backend = meta_get_backend ();
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
MetaWindow *toplevel_window;
MetaLogicalMonitor *from;
MetaLogicalMonitor *to;
MetaLogicalMonitor *scaled_new;
float from_scale, to_scale;
float scale;
MetaRectangle rect;
from = window->monitor;
/* If the window is not a toplevel window (i.e. it's a popup window) just use
* the monitor of the toplevel. */
toplevel_window = meta_wayland_surface_get_toplevel_window (window->surface);
if (toplevel_window != window)
{
meta_window_update_monitor (toplevel_window, flags);
window->monitor = toplevel_window->monitor;
return;
}
/* Require both the current and the new monitor would be the new main monitor,
* even given the resulting scale the window would end up having. This is
* needed to avoid jumping back and forth between the new and the old, since
* changing main monitor may cause the window to be resized so that it no
* longer have that same new main monitor. */
to = meta_window_calculate_main_logical_monitor (window);
if (from == to)
return;
if (from == NULL || to == NULL)
{
window->monitor = to;
return;
}
if (flags & META_WINDOW_UPDATE_MONITOR_FLAGS_FORCE)
{
window->monitor = to;
return;
}
from_scale = meta_logical_monitor_get_scale (from);
to_scale = meta_logical_monitor_get_scale (to);
if (from_scale == to_scale)
{
window->monitor = to;
return;
}
if (meta_is_stage_views_scaled ())
{
window->monitor = to;
return;
}
/* To avoid a window alternating between two main monitors because scaling
* changes the main monitor, wait until both the current and the new scale
* will result in the same main monitor. */
scale = to_scale / from_scale;
rect = window->rect;
scale_rect_size (&rect, scale);
scaled_new =
meta_monitor_manager_get_logical_monitor_from_rect (monitor_manager, &rect);
if (to != scaled_new)
return;
window->monitor = to;
}
static void
meta_window_wayland_main_monitor_changed (MetaWindow *window,
const MetaLogicalMonitor *old)
{
MetaWindowWayland *wl_window = META_WINDOW_WAYLAND (window);
int old_geometry_scale = wl_window->geometry_scale;
int geometry_scale;
float scale_factor;
MetaWaylandSurface *surface;
if (!window->monitor)
return;
geometry_scale = meta_window_wayland_get_geometry_scale (window);
/* This function makes sure that window geometry, window actor geometry and
* surface actor geometry gets set according the old and current main monitor
* scale. If there either is no past or current main monitor, or if the scale
* didn't change, there is nothing to do. */
if (old == NULL ||
window->monitor == NULL ||
old_geometry_scale == geometry_scale)
return;
/* MetaWindow keeps its rectangles in the physical pixel coordinate space.
* When the main monitor of a window changes, it can cause the corresponding
* window surfaces to be scaled given the monitor scale, so we need to scale
* the rectangles in MetaWindow accordingly. */
scale_factor = (float) geometry_scale / old_geometry_scale;
/* Window size. */
scale_rect_size (&window->rect, scale_factor);
scale_rect_size (&window->unconstrained_rect, scale_factor);
scale_rect_size (&window->saved_rect, scale_factor);
scale_size (&window->size_hints.min_width, &window->size_hints.min_height, scale_factor);
scale_size (&window->size_hints.max_width, &window->size_hints.max_height, scale_factor);
/* Window geometry offset (XXX: Need a better place, see
* meta_window_wayland_move_resize). */
window->custom_frame_extents.left =
(int)(scale_factor * window->custom_frame_extents.left);
window->custom_frame_extents.top =
(int)(scale_factor * window->custom_frame_extents.top);
/* Buffer rect. */
scale_rect_size (&window->buffer_rect, scale_factor);
window->buffer_rect.x =
window->rect.x - window->custom_frame_extents.left;
window->buffer_rect.y =
window->rect.y - window->custom_frame_extents.top;
meta_compositor_sync_window_geometry (window->display->compositor,
window,
TRUE);
surface = window->surface;
if (surface)
{
MetaWaylandActorSurface *actor_surface =
META_WAYLAND_ACTOR_SURFACE (surface->role);
meta_wayland_actor_surface_sync_actor_state (actor_surface);
}
wl_window->geometry_scale = geometry_scale;
meta_window_emit_size_changed (window);
}
static uint32_t
meta_window_wayland_get_client_pid (MetaWindow *window)
{
MetaWaylandSurface *surface = window->surface;
struct wl_resource *resource = surface->resource;
pid_t pid;
wl_client_get_credentials (wl_resource_get_client (resource), &pid, NULL, NULL);
return (uint32_t)pid;
}
static void
appears_focused_changed (GObject *object,
GParamSpec *pspec,
gpointer user_data)
{
MetaWindow *window = META_WINDOW (object);
surface_state_changed (window);
}
static void
on_window_shown (MetaWindow *window)
{
MetaWindowWayland *wl_window = META_WINDOW_WAYLAND (window);
gboolean has_been_shown;
has_been_shown = wl_window->has_been_shown;
wl_window->has_been_shown = TRUE;
if (!has_been_shown)
meta_compositor_sync_updates_frozen (window->display->compositor, window);
}
static void
meta_window_wayland_init (MetaWindowWayland *wl_window)
{
MetaWindow *window = META_WINDOW (wl_window);
wl_window->geometry_scale = 1;
g_signal_connect (window, "notify::appears-focused",
G_CALLBACK (appears_focused_changed), NULL);
g_signal_connect (window, "shown",
G_CALLBACK (on_window_shown), NULL);
}
static void
meta_window_wayland_force_restore_shortcuts (MetaWindow *window,
ClutterInputDevice *source)
{
MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
meta_wayland_compositor_restore_shortcuts (compositor, source);
}
static gboolean
meta_window_wayland_shortcuts_inhibited (MetaWindow *window,
ClutterInputDevice *source)
{
MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
return meta_wayland_compositor_is_shortcuts_inhibited (compositor, source);
}
static gboolean
meta_window_wayland_is_focusable (MetaWindow *window)
{
return window->input;
}
static gboolean
meta_window_wayland_can_ping (MetaWindow *window)
{
return TRUE;
}
static gboolean
meta_window_wayland_is_stackable (MetaWindow *window)
{
return meta_wayland_surface_get_buffer (window->surface) != NULL;
}
static gboolean
meta_window_wayland_are_updates_frozen (MetaWindow *window)
{
MetaWindowWayland *wl_window = META_WINDOW_WAYLAND (window);
return !wl_window->has_been_shown;
}
static void
meta_window_wayland_class_init (MetaWindowWaylandClass *klass)
{
MetaWindowClass *window_class = META_WINDOW_CLASS (klass);
window_class->manage = meta_window_wayland_manage;
window_class->unmanage = meta_window_wayland_unmanage;
window_class->ping = meta_window_wayland_ping;
window_class->delete = meta_window_wayland_delete;
window_class->kill = meta_window_wayland_kill;
window_class->focus = meta_window_wayland_focus;
window_class->grab_op_began = meta_window_wayland_grab_op_began;
window_class->grab_op_ended = meta_window_wayland_grab_op_ended;
window_class->move_resize_internal = meta_window_wayland_move_resize_internal;
window_class->update_main_monitor = meta_window_wayland_update_main_monitor;
window_class->main_monitor_changed = meta_window_wayland_main_monitor_changed;
window_class->get_client_pid = meta_window_wayland_get_client_pid;
window_class->force_restore_shortcuts = meta_window_wayland_force_restore_shortcuts;
window_class->shortcuts_inhibited = meta_window_wayland_shortcuts_inhibited;
window_class->is_focusable = meta_window_wayland_is_focusable;
window_class->is_stackable = meta_window_wayland_is_stackable;
window_class->can_ping = meta_window_wayland_can_ping;
window_class->are_updates_frozen = meta_window_wayland_are_updates_frozen;
}
MetaWindow *
meta_window_wayland_new (MetaDisplay *display,
MetaWaylandSurface *surface)
{
XWindowAttributes attrs = { 0 };
MetaWindow *window;
/*
* Set attributes used by _meta_window_shared_new, don't bother trying to fake
* X11 window attributes with the rest, since they'll be ignored anyway.
*/
attrs.x = 0;
attrs.y = 0;
attrs.width = 0;
attrs.height = 0;
attrs.depth = 24;
attrs.visual = NULL;
attrs.map_state = IsUnmapped;
attrs.override_redirect = False;
/* XXX: Note: In the Wayland case we currently still trap X errors while
* creating a MetaWindow because we will still be making various redundant
* X requests (passing a window xid of None) until we thoroughly audit all
* the code to make sure it knows about non X based clients...
*/
meta_x11_error_trap_push (display->x11_display); /* Push a trap over all of window
* creation, to reduce XSync() calls
*/
window = _meta_window_shared_new (display,
META_WINDOW_CLIENT_TYPE_WAYLAND,
surface,
None,
WithdrawnState,
META_COMP_EFFECT_CREATE,
&attrs);
meta_x11_error_trap_pop (display->x11_display); /* pop the XSync()-reducing trap */
return window;
}
static gboolean
is_pending_ack_configure (MetaWindowWayland *wl_window,
MetaWaylandSerial *acked_configure_serial)
{
if (wl_window->pending_configure_serial.set)
{
/* If we're waiting for a configure and this isn't an ACK for
* any configure, then fizzle it out. */
if (!acked_configure_serial->set)
return FALSE;
/* If we're waiting for a configure and this isn't an ACK for
* the configure we're waiting for, then fizzle it out. */
if (acked_configure_serial->value != wl_window->pending_configure_serial.value)
return FALSE;
}
return TRUE;
}
int
meta_window_wayland_get_geometry_scale (MetaWindow *window)
{
if (!window->monitor)
return 1;
return get_window_geometry_scale_for_logical_monitor (window->monitor);
}
/**
* meta_window_move_resize_wayland:
*
* Complete a resize operation from a wayland client.
*/
void
meta_window_wayland_move_resize (MetaWindow *window,
MetaWaylandSerial *acked_configure_serial,
MetaRectangle new_geom,
int dx,
int dy)
{
MetaWindowWayland *wl_window = META_WINDOW_WAYLAND (window);
int geometry_scale;
int gravity;
MetaRectangle rect;
MetaMoveResizeFlags flags;
gboolean pending_ack_configure;
/* new_geom is in the logical pixel coordinate space, but MetaWindow wants its
* rects to represent what in turn will end up on the stage, i.e. we need to
* scale new_geom to physical pixels given what buffer scale and texture scale
* is in use. */
geometry_scale = meta_window_wayland_get_geometry_scale (window);
new_geom.x *= geometry_scale;
new_geom.y *= geometry_scale;
new_geom.width *= geometry_scale;
new_geom.height *= geometry_scale;
/* The (dx, dy) offset is also in logical pixel coordinate space and needs
* to be scaled in the same way as new_geom. */
dx *= geometry_scale;
dy *= geometry_scale;
/* XXX: Find a better place to store the window geometry offsets. */
window->custom_frame_extents.left = new_geom.x;
window->custom_frame_extents.top = new_geom.y;
flags = META_MOVE_RESIZE_WAYLAND_RESIZE;
pending_ack_configure = is_pending_ack_configure (wl_window, acked_configure_serial);
/* x/y are ignored when we're doing interactive resizing */
if (!meta_grab_op_is_resizing (window->display->grab_op))
{
if (wl_window->has_pending_move && pending_ack_configure)
{
rect.x = wl_window->pending_move_x;
rect.y = wl_window->pending_move_y;
wl_window->has_pending_move = FALSE;
flags |= META_MOVE_RESIZE_MOVE_ACTION;
}
else
{
rect.x = window->rect.x;
rect.y = window->rect.y;
}
if (dx != 0 || dy != 0)
{
rect.x += dx;
rect.y += dy;
flags |= META_MOVE_RESIZE_MOVE_ACTION;
}
}
if (wl_window->has_pending_state_change && pending_ack_configure)
{
flags |= META_MOVE_RESIZE_WAYLAND_STATE_CHANGED;
wl_window->has_pending_state_change = FALSE;
}
wl_window->pending_configure_serial.set = FALSE;
rect.width = new_geom.width;
rect.height = new_geom.height;
if (rect.width != window->rect.width || rect.height != window->rect.height)
flags |= META_MOVE_RESIZE_RESIZE_ACTION;
gravity = meta_resize_gravity_from_grab_op (window->display->grab_op);
meta_window_move_resize_internal (window, flags, gravity, rect);
}
void
meta_window_wayland_place_relative_to (MetaWindow *window,
MetaWindow *other,
int x,
int y)
{
int geometry_scale;
/* If there is no monitor, we can't position the window reliably. */
if (!other->monitor)
return;
geometry_scale = meta_window_wayland_get_geometry_scale (other);
meta_window_move_frame (window, FALSE,
other->buffer_rect.x + (x * geometry_scale),
other->buffer_rect.y + (y * geometry_scale));
window->placed = TRUE;
}
void
meta_window_place_with_placement_rule (MetaWindow *window,
MetaPlacementRule *placement_rule)
{
g_clear_pointer (&window->placement_rule, g_free);
window->placement_rule = g_new0 (MetaPlacementRule, 1);
*window->placement_rule = *placement_rule;
window->unconstrained_rect.width = placement_rule->width;
window->unconstrained_rect.height = placement_rule->height;
meta_window_force_placement (window, FALSE);
}
void
meta_window_wayland_set_min_size (MetaWindow *window,
int width,
int height)
{
gint64 new_width, new_height;
float scale;
meta_topic (META_DEBUG_GEOMETRY, "Window %s sets min size %d x %d\n",
window->desc, width, height);
if (width == 0 && height == 0)
{
window->size_hints.min_width = 0;
window->size_hints.min_height = 0;
window->size_hints.flags &= ~PMinSize;
return;
}
scale = (float) meta_window_wayland_get_geometry_scale (window);
scale_size (&width, &height, scale);
new_width = width + (window->custom_frame_extents.left +
window->custom_frame_extents.right);
new_height = height + (window->custom_frame_extents.top +
window->custom_frame_extents.bottom);
window->size_hints.min_width = (int) MIN (new_width, G_MAXINT);
window->size_hints.min_height = (int) MIN (new_height, G_MAXINT);
window->size_hints.flags |= PMinSize;
}
void
meta_window_wayland_set_max_size (MetaWindow *window,
int width,
int height)
{
gint64 new_width, new_height;
float scale;
meta_topic (META_DEBUG_GEOMETRY, "Window %s sets max size %d x %d\n",
window->desc, width, height);
if (width == 0 && height == 0)
{
window->size_hints.max_width = G_MAXINT;
window->size_hints.max_height = G_MAXINT;
window->size_hints.flags &= ~PMaxSize;
return;
}
scale = (float) meta_window_wayland_get_geometry_scale (window);
scale_size (&width, &height, scale);
new_width = width + (window->custom_frame_extents.left +
window->custom_frame_extents.right);
new_height = height + (window->custom_frame_extents.top +
window->custom_frame_extents.bottom);
window->size_hints.max_width = (int) ((new_width > 0 && new_width < G_MAXINT) ?
new_width : G_MAXINT);
window->size_hints.max_height = (int) ((new_height > 0 && new_height < G_MAXINT) ?
new_height : G_MAXINT);
window->size_hints.flags |= PMaxSize;
}
void
meta_window_wayland_get_min_size (MetaWindow *window,
int *width,
int *height)
{
gint64 current_width, current_height;
float scale;
if (!(window->size_hints.flags & PMinSize))
{
/* Zero means unlimited */
*width = 0;
*height = 0;
return;
}
current_width = window->size_hints.min_width -
(window->custom_frame_extents.left +
window->custom_frame_extents.right);
current_height = window->size_hints.min_height -
(window->custom_frame_extents.top +
window->custom_frame_extents.bottom);
*width = MAX (current_width, 0);
*height = MAX (current_height, 0);
scale = 1.0 / (float) meta_window_wayland_get_geometry_scale (window);
scale_size (width, height, scale);
}
void
meta_window_wayland_get_max_size (MetaWindow *window,
int *width,
int *height)
{
gint64 current_width = 0;
gint64 current_height = 0;
float scale;
if (!(window->size_hints.flags & PMaxSize))
{
/* Zero means unlimited */
*width = 0;
*height = 0;
return;
}
if (window->size_hints.max_width < G_MAXINT)
current_width = window->size_hints.max_width -
(window->custom_frame_extents.left +
window->custom_frame_extents.right);
if (window->size_hints.max_height < G_MAXINT)
current_height = window->size_hints.max_height -
(window->custom_frame_extents.top +
window->custom_frame_extents.bottom);
*width = CLAMP (current_width, 0, G_MAXINT);
*height = CLAMP (current_height, 0, G_MAXINT);
scale = 1.0 / (float) meta_window_wayland_get_geometry_scale (window);
scale_size (width, height, scale);
}
gboolean
meta_window_wayland_needs_move_resize (MetaWindow *window)
{
MetaWindowWayland *wl_window = META_WINDOW_WAYLAND (window);
return wl_window->has_pending_state_change || wl_window->has_pending_move;
}
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