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mutter-performance-source/src/wayland/meta-window-wayland.c
Jonas Ådahl 59bf1f4838 window/wayland: Don't always use constrained size when unfullscreening 
When we're unfullscreening, we might be returning to a window state that
has its size either managed by constraints (tiled, maximized), or not
(floating). Lets just pass the configure size 0x0 when we're not using
constrained sizes (i.e. the window going from being fullscreen to not
maximized) and let the application decide how to size itself.

Fixes: https://gitlab.gnome.org/GNOME/mutter/issues/638

https://gitlab.gnome.org/GNOME/mutter/merge_requests/621
2019-06-13 16:40:57 +00:00

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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_display_set_input_focus (window->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 &&
!meta_window_is_fullscreen (window))
{
configured_width = 0;
configured_height = 0;
}
else if (flags & META_MOVE_RESIZE_UNFULLSCREEN &&
!meta_window_get_maximized (window) &&
meta_window_get_tile_mode (window) == META_TILE_NONE)
{
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_map (MetaWindow *window)
{
}
static void
meta_window_wayland_unmap (MetaWindow *window)
{
}
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;
window_class->map = meta_window_wayland_map;
window_class->unmap = meta_window_wayland_unmap;
}
MetaWindow *
meta_window_wayland_new (MetaDisplay *display,
MetaWaylandSurface *surface)
{
XWindowAttributes attrs = { 0 };
/*
* 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;
return _meta_window_shared_new (display,
META_WINDOW_CLIENT_TYPE_WAYLAND,
surface,
None,
WithdrawnState,
META_COMP_EFFECT_CREATE,
&attrs);
}
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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