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e188d3c4f6
mutter/src/window.c
rhp e188d3c4f6 ...
2001-06-13 00:56:08 +00:00

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/* Metacity X managed windows */
/*
* Copyright (C) 2001 Havoc Pennington
*
* 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.
*/
#include "window.h"
#include "util.h"
#include "frame.h"
#include "errors.h"
#include "workspace.h"
#include "stack.h"
#include <X11/Xatom.h>
static void constrain_size (MetaWindow *window,
MetaFrameGeometry *fgeom,
int width,
int height,
int *new_width,
int *new_height);
static void constrain_position (MetaWindow *window,
MetaFrameGeometry *fgeom,
int x,
int y,
int *new_x,
int *new_y);
static int update_size_hints (MetaWindow *window);
static int update_title (MetaWindow *window);
static int update_protocols (MetaWindow *window);
static int update_wm_hints (MetaWindow *window);
static int update_net_wm_state (MetaWindow *window);
static int update_mwm_hints (MetaWindow *window);
static int update_wm_class (MetaWindow *window);
static int update_transient_for (MetaWindow *window);
static void update_sm_hints (MetaWindow *window);
static int update_role (MetaWindow *window);
static int update_net_wm_type (MetaWindow *window);
static int update_initial_workspace (MetaWindow *window);
static void recalc_window_type (MetaWindow *window);
static int set_wm_state (MetaWindow *window,
int state);
static int set_net_wm_state (MetaWindow *window);
static void send_configure_notify (MetaWindow *window);
static gboolean process_configure_request (MetaWindow *window,
int x,
int y,
int width,
int height,
int border_width);
static gboolean process_property_notify (MetaWindow *window,
XPropertyEvent *event);
static void meta_window_show (MetaWindow *window);
static void meta_window_hide (MetaWindow *window);
static void meta_window_move_resize_internal (MetaWindow *window,
gboolean is_configure_request,
int root_x_nw,
int root_y_nw,
int w,
int h);
MetaWindow*
meta_window_new (MetaDisplay *display, Window xwindow,
gboolean must_be_viewable)
{
MetaWindow *window;
XWindowAttributes attrs;
GSList *tmp;
MetaWorkspace *space;
meta_verbose ("Attempting to manage 0x%lx\n", xwindow);
/* Grab server */
meta_display_grab (display);
meta_error_trap_push (display);
XGetWindowAttributes (display->xdisplay,
xwindow, &attrs);
if (meta_error_trap_pop (display))
{
meta_verbose ("Failed to get attributes for window 0x%lx\n",
xwindow);
meta_display_ungrab (display);
return NULL;
}
if (attrs.override_redirect)
{
meta_verbose ("Deciding not to manage override_redirect window 0x%lx\n", xwindow);
meta_display_ungrab (display);
return NULL;
}
if (must_be_viewable && attrs.map_state != IsViewable)
{
meta_verbose ("Deciding not to manage unmapped or unviewable window 0x%lx\n", xwindow);
meta_display_ungrab (display);
return NULL;
}
meta_error_trap_push (display);
XAddToSaveSet (display->xdisplay, xwindow);
XSelectInput (display->xdisplay, xwindow,
PropertyChangeMask |
EnterWindowMask | LeaveWindowMask |
FocusChangeMask);
/* Get rid of any borders */
if (attrs.border_width != 0)
XSetWindowBorderWidth (display->xdisplay, xwindow, 0);
if (meta_error_trap_pop (display) != Success)
{
meta_verbose ("Window 0x%lx disappeared just as we tried to manage it\n",
xwindow);
meta_display_ungrab (display);
return NULL;
}
g_assert (!attrs.override_redirect);
window = g_new (MetaWindow, 1);
window->xwindow = xwindow;
/* this is in window->screen->display, but that's too annoying to
* type
*/
window->display = display;
window->workspaces = NULL;
window->screen = NULL;
tmp = display->screens;
while (tmp != NULL)
{
if (((MetaScreen *)tmp->data)->xscreen == attrs.screen)
{
window->screen = tmp->data;
break;
}
tmp = tmp->next;
}
g_assert (window->screen);
/* avoid tons of stack updates */
meta_stack_freeze (window->screen->stack);
/* Remember this rect is the actual window size */
window->rect.x = attrs.x;
window->rect.y = attrs.y;
window->rect.width = attrs.width;
window->rect.height = attrs.height;
/* And border width, size_hints are the "request" */
window->border_width = attrs.border_width;
window->size_hints.x = attrs.x;
window->size_hints.y = attrs.y;
window->size_hints.width = attrs.width;
window->size_hints.height = attrs.height;
/* And this is our unmaximized size */
window->saved_rect = window->rect;
window->depth = attrs.depth;
window->xvisual = attrs.visual;
window->title = NULL;
window->desc = g_strdup_printf ("0x%lx", window->xwindow);
window->frame = NULL;
window->has_focus = FALSE;
window->user_has_resized = FALSE;
window->user_has_moved = FALSE;
window->maximized = FALSE;
window->on_all_workspaces = FALSE;
window->shaded = FALSE;
window->initially_iconic = FALSE;
window->minimized = FALSE;
window->iconic = FALSE;
window->mapped = FALSE;
window->unmaps_pending = 0;
window->decorated = TRUE;
window->has_close_func = TRUE;
window->has_minimize_func = TRUE;
window->has_maximize_func = TRUE;
window->wm_state_modal = FALSE;
window->wm_state_skip_taskbar = FALSE;
window->wm_state_skip_pager = FALSE;
window->res_class = NULL;
window->res_name = NULL;
window->role = NULL;
window->sm_client_id = NULL;
window->xtransient_for = None;
window->xgroup_leader = None;
window->xclient_leader = None;
window->type = META_WINDOW_NORMAL;
window->type_atom = None;
window->layer = META_LAYER_NORMAL;
window->stack_op = NULL;
window->initial_workspace =
meta_workspace_screen_index (window->screen->active_workspace);
meta_display_register_x_window (display, &window->xwindow, window);
update_size_hints (window);
update_title (window);
update_protocols (window);
update_wm_hints (window);
update_net_wm_state (window);
update_mwm_hints (window);
update_wm_class (window);
update_transient_for (window);
update_sm_hints (window); /* must come after transient_for */
update_role (window);
update_net_wm_type (window);
update_initial_workspace (window);
if (window->initially_iconic)
{
/* WM_HINTS said minimized */
window->minimized = TRUE;
meta_verbose ("Window %s asked to start out minimized\n", window->desc);
}
/* FIXME we have a tendency to set this then immediately
* change it again.
*/
set_wm_state (window, window->iconic ? IconicState : NormalState);
set_net_wm_state (window);
if (window->decorated)
meta_window_ensure_frame (window);
space =
meta_display_get_workspace_by_screen_index (window->display,
window->screen,
window->initial_workspace);
if (space == NULL)
space = window->screen->active_workspace;
meta_workspace_add_window (space, window);
/* Put our state back where it should be,
* passing TRUE for is_configure_request, ICCCM says
* initial map is handled same as configure request
*/
meta_window_move_resize_internal (window, TRUE,
window->size_hints.x,
window->size_hints.y,
window->size_hints.width,
window->size_hints.height);
meta_stack_add (window->screen->stack,
window);
/* Sync stack changes */
meta_stack_thaw (window->screen->stack);
meta_window_queue_calc_showing (window);
meta_display_ungrab (display);
return window;
}
void
meta_window_free (MetaWindow *window)
{
GList *tmp;
meta_verbose ("Unmanaging 0x%lx\n", window->xwindow);
tmp = window->workspaces;
while (tmp != NULL)
{
GList *next;
next = tmp->next;
/* pops front of list */
meta_workspace_remove_window (tmp->data, window);
tmp = next;
}
g_assert (window->workspaces == NULL);
meta_stack_remove (window->screen->stack, window);
/* FIXME restore original size if window has maximized */
set_wm_state (window, WithdrawnState);
meta_display_unregister_x_window (window->display, window->xwindow);
meta_window_destroy_frame (window);
/* Put back anything we messed up */
meta_error_trap_push (window->display);
if (window->border_width != 0)
XSetWindowBorderWidth (window->display->xdisplay,
window->xwindow,
window->border_width);
meta_error_trap_pop (window->display);
g_free (window->sm_client_id);
g_free (window->role);
g_free (window->res_class);
g_free (window->res_name);
g_free (window->title);
g_free (window->desc);
g_free (window);
}
static int
set_wm_state (MetaWindow *window,
int state)
{
unsigned long data[2];
/* twm sets the icon window as data[1], I couldn't find that in
* ICCCM.
*/
data[0] = state;
data[1] = None;
meta_error_trap_push (window->display);
XChangeProperty (window->display->xdisplay, window->xwindow,
window->display->atom_wm_state,
window->display->atom_wm_state,
32, PropModeReplace, (guchar*) data, 2);
return meta_error_trap_pop (window->display);
}
static int
set_net_wm_state (MetaWindow *window)
{
int i;
unsigned long data[10];
gboolean skip_pager;
gboolean skip_taskbar;
if (window->type == META_WINDOW_DESKTOP ||
window->type == META_WINDOW_DOCK ||
window->type == META_WINDOW_TOOLBAR ||
window->type == META_WINDOW_MENU)
skip_pager = TRUE;
else
skip_pager = FALSE;
if (window->type == META_WINDOW_DESKTOP ||
window->type == META_WINDOW_DOCK ||
window->type == META_WINDOW_MENU)
skip_taskbar = TRUE;
else
skip_taskbar = FALSE;
i = 0;
if (window->shaded)
{
data[i] = window->display->atom_net_wm_state_shaded;
++i;
}
if (window->wm_state_modal)
{
data[i] = window->display->atom_net_wm_state_modal;
++i;
}
if (window->wm_state_skip_pager || skip_pager)
{
data[i] = window->display->atom_net_wm_state_skip_pager;
++i;
}
if (window->wm_state_skip_taskbar || skip_pager)
{
data[i] = window->display->atom_net_wm_state_skip_taskbar;
++i;
}
if (window->maximized)
{
data[i] = window->display->atom_net_wm_state_maximized_horz;
++i;
data[i] = window->display->atom_net_wm_state_maximized_vert;
++i;
}
meta_verbose ("Setting _NET_WM_STATE with %d atoms\n", i);
meta_error_trap_push (window->display);
XChangeProperty (window->display->xdisplay, window->xwindow,
window->display->atom_net_wm_state,
XA_ATOM,
32, PropModeReplace, (guchar*) data, i);
return meta_error_trap_pop (window->display);
}
void
meta_window_calc_showing (MetaWindow *window)
{
gboolean on_workspace;
on_workspace = g_list_find (window->workspaces,
window->screen->active_workspace) != NULL;
if (!on_workspace)
meta_verbose ("Window %s is not on workspace %d\n",
window->desc,
meta_workspace_index (window->screen->active_workspace));
else
meta_verbose ("Window %s is on the active workspace %d\n",
window->desc,
meta_workspace_index (window->screen->active_workspace));
if (window->on_all_workspaces)
{
on_workspace = TRUE;
meta_verbose ("Window %s is on all workspaces\n", window->desc);
}
if (window->minimized || !on_workspace)
{
meta_window_hide (window);
}
else
{
meta_window_show (window);
}
}
void
meta_window_queue_calc_showing (MetaWindow *window)
{
/* FIXME */
meta_window_calc_showing (window);
}
void
meta_window_show (MetaWindow *window)
{
meta_verbose ("Showing window %s, shaded: %d iconic: %d\n",
window->desc, window->shaded, window->iconic);
/* Shaded means the frame is mapped but the window is not */
if (window->frame && !window->frame->mapped)
{
meta_verbose ("Frame actually needs map\n");
window->frame->mapped = TRUE;
XMapWindow (window->display->xdisplay, window->frame->xwindow);
}
if (window->shaded)
{
if (window->mapped)
{
meta_verbose ("%s actually needs unmap\n", window->desc);
window->mapped = FALSE;
window->unmaps_pending += 1;
meta_error_trap_push (window->display);
XUnmapWindow (window->display->xdisplay, window->xwindow);
meta_error_trap_pop (window->display);
}
if (!window->iconic)
{
window->iconic = TRUE;
set_wm_state (window, IconicState);
}
}
else
{
if (!window->mapped)
{
meta_verbose ("%s actually needs map\n", window->desc);
window->mapped = TRUE;
meta_error_trap_push (window->display);
XMapWindow (window->display->xdisplay, window->xwindow);
meta_error_trap_pop (window->display);
}
if (window->iconic)
{
window->iconic = FALSE;
set_wm_state (window, NormalState);
}
}
}
void
meta_window_hide (MetaWindow *window)
{
meta_verbose ("Hiding window %s\n", window->desc);
if (window->frame && window->frame->mapped)
{
meta_verbose ("Frame actually needs unmap\n");
window->frame->mapped = FALSE;
XUnmapWindow (window->display->xdisplay, window->frame->xwindow);
}
if (window->mapped)
{
meta_verbose ("%s actually needs unmap\n", window->desc);
window->mapped = FALSE;
window->unmaps_pending += 1;
XUnmapWindow (window->display->xdisplay, window->xwindow);
}
if (!window->iconic)
{
window->iconic = TRUE;
set_wm_state (window, IconicState);
}
}
void
meta_window_minimize (MetaWindow *window)
{
if (!window->minimized)
{
window->minimized = TRUE;
meta_window_queue_calc_showing (window);
}
}
void
meta_window_unminimize (MetaWindow *window)
{
if (window->minimized)
{
window->minimized = FALSE;
meta_window_queue_calc_showing (window);
}
}
void
meta_window_maximize (MetaWindow *window)
{
if (!window->maximized)
{
window->maximized = TRUE;
/* save size/pos as appropriate args for move_resize */
window->saved_rect = window->rect;
if (window->frame)
{
window->saved_rect.x += window->frame->rect.x;
window->saved_rect.y += window->frame->rect.y;
}
/* move_resize with new maximization constraints
*/
meta_window_queue_move_resize (window);
set_net_wm_state (window);
}
}
void
meta_window_unmaximize (MetaWindow *window)
{
if (window->maximized)
{
window->maximized = FALSE;
meta_window_move_resize (window,
window->saved_rect.x,
window->saved_rect.y,
window->saved_rect.width,
window->saved_rect.height);
set_net_wm_state (window);
}
}
void
meta_window_shade (MetaWindow *window)
{
if (!window->shaded)
{
window->shaded = TRUE;
meta_window_queue_move_resize (window);
meta_window_queue_calc_showing (window);
set_net_wm_state (window);
}
}
void
meta_window_unshade (MetaWindow *window)
{
if (window->shaded)
{
window->shaded = FALSE;
meta_window_queue_move_resize (window);
meta_window_queue_calc_showing (window);
/* focus the window */
/* FIXME CurrentTime is bogus */
meta_window_focus (window, CurrentTime);
set_net_wm_state (window);
}
}
/* returns values suitable for meta_window_move */
void
adjust_for_gravity (MetaWindow *window,
MetaFrameGeometry *fgeom,
gboolean coords_assume_border,
int x,
int y,
int *xp,
int *yp)
{
int ref_x, ref_y;
int bw;
int child_x, child_y;
int frame_width, frame_height;
if (coords_assume_border)
bw = window->border_width;
else
bw = 0;
if (fgeom)
{
child_x = fgeom->left_width;
child_y = fgeom->top_height;
frame_width = child_x + window->rect.width + fgeom->right_width;
frame_height = child_y + window->rect.height + fgeom->bottom_height;
}
else
{
child_x = 0;
child_y = 0;
frame_width = window->rect.width;
frame_height = window->rect.height;
}
/* We're computing position to pass to window_move, which is
* the position of the client window (StaticGravity basically)
*
* (see WM spec description of gravity computation, but note that
* their formulas assume we're honoring the border width, rather
* than compensating for having turned it off)
*/
switch (window->size_hints.win_gravity)
{
case NorthWestGravity:
ref_x = x;
ref_y = y;
break;
case NorthGravity:
ref_x = x + window->rect.width / 2 + bw;
ref_y = y;
break;
case NorthEastGravity:
ref_x = x + window->rect.width + bw * 2;
ref_y = y;
break;
case WestGravity:
ref_x = x;
ref_y = y + window->rect.height / 2 + bw;
break;
case CenterGravity:
ref_x = x + window->rect.width / 2 + bw;
ref_y = y + window->rect.height / 2 + bw;
break;
case EastGravity:
ref_x = x + window->rect.width + bw * 2;
ref_y = y + window->rect.height / 2 + bw;
break;
case SouthWestGravity:
ref_x = x;
ref_y = y + window->rect.height + bw * 2;
break;
case SouthGravity:
ref_x = x + window->rect.width / 2 + bw;
ref_y = y + window->rect.height + bw * 2;
break;
case SouthEastGravity:
ref_x = x + window->rect.width + bw * 2;
ref_y = y + window->rect.height + bw * 2;
break;
case StaticGravity:
default:
ref_x = x;
ref_y = y;
break;
}
switch (window->size_hints.win_gravity)
{
case NorthWestGravity:
*xp = ref_x + child_x;
*yp = ref_y + child_y;
break;
case NorthGravity:
*xp = ref_x - frame_width / 2 + child_x;
*yp = ref_y + child_y;
break;
case NorthEastGravity:
*xp = ref_x - frame_width + child_x;
*yp = ref_y + child_y;
break;
case WestGravity:
*xp = ref_x + child_x;
*yp = ref_y - frame_height / 2 + child_y;
break;
case CenterGravity:
*xp = ref_x - frame_width / 2 + child_x;
*yp = ref_y - frame_height / 2 + child_y;
break;
case EastGravity:
*xp = ref_x - frame_width + child_x;
*yp = ref_y - frame_height / 2 + child_y;
break;
case SouthWestGravity:
*xp = ref_x + child_x;
*yp = ref_y - frame_height + child_y;
break;
case SouthGravity:
*xp = ref_x - frame_width / 2 + child_x;
*yp = ref_y - frame_height + child_y;
break;
case SouthEastGravity:
*xp = ref_x - frame_width + child_x;
*yp = ref_y - frame_height + child_y;
break;
case StaticGravity:
default:
*xp = ref_x;
*yp = ref_y;
break;
}
}
static void
meta_window_move_resize_internal (MetaWindow *window,
gboolean is_configure_request,
int root_x_nw,
int root_y_nw,
int w,
int h)
{
XWindowChanges values;
unsigned int mask;
gboolean need_configure_notify;
MetaFrameGeometry fgeom;
gboolean need_move_client = FALSE;
gboolean need_move_frame = FALSE;
gboolean need_resize_client = FALSE;
gboolean need_resize_frame = FALSE;
{
int oldx, oldy;
meta_window_get_position (window, &oldx, &oldy);
meta_verbose ("Move/resize %s to %d,%d %dx%d%s from %d,%d %dx%d\n",
window->desc, root_x_nw, root_y_nw, w, h,
is_configure_request ? " (configure request)" : "",
oldx, oldy, window->rect.width, window->rect.height);
}
/* FIXME we're passing old window size to calc_geometry,
* I believe the right fix is to remove window size
* args from calc_geometry and remove any dependency
* on that in frame code.
*/
if (window->frame)
meta_frame_calc_geometry (window->frame,
window->rect.width,
window->rect.height,
&fgeom);
constrain_size (window, &fgeom, w, h, &w, &h);
meta_verbose ("Constrained resize of %s to %d x %d\n", window->desc, w, h);
if (w != window->rect.width ||
h != window->rect.height)
need_resize_client = TRUE;
window->rect.width = w;
window->rect.height = h;
if (window->frame)
{
int new_w, new_h;
new_w = window->rect.width + fgeom.left_width + fgeom.right_width;
if (window->shaded)
new_h = fgeom.top_height;
else
new_h = window->rect.height + fgeom.top_height + fgeom.bottom_height;
if (new_w != window->frame->rect.width ||
new_h != window->frame->rect.height)
need_resize_frame = TRUE;
window->frame->rect.width = new_w;
window->frame->rect.height = new_h;
meta_verbose ("Calculated frame size %dx%d\n",
window->frame->rect.width,
window->frame->rect.height);
}
if (is_configure_request)
{
adjust_for_gravity (window,
window->frame ? &fgeom : NULL,
/* configure request coords assume
* the border width existed
*/
is_configure_request,
root_x_nw,
root_y_nw,
&root_x_nw,
&root_y_nw);
meta_verbose ("Compensated position for gravity, new pos %d,%d\n",
root_x_nw, root_y_nw);
}
constrain_position (window,
window->frame ? &fgeom : NULL,
root_x_nw, root_y_nw,
&root_x_nw, &root_y_nw);
meta_verbose ("Constrained position to %d,%d\n",
root_x_nw, root_y_nw);
if (window->frame)
{
int new_x, new_y;
new_x = root_x_nw - fgeom.left_width;
new_y = root_y_nw - fgeom.top_height;
if (new_x != window->frame->rect.x ||
new_y != window->frame->rect.y)
need_move_frame = TRUE;
if (window->rect.x != fgeom.left_width ||
window->rect.y != fgeom.top_height)
need_move_client = TRUE;
window->frame->rect.x = new_x;
window->frame->rect.y = new_y;
/* window->rect.x, window->rect.y are relative to frame,
* remember they are the server coords
*/
window->rect.x = fgeom.left_width;
window->rect.y = fgeom.top_height;
}
else
{
if (root_x_nw != window->rect.x ||
root_y_nw != window->rect.y)
need_move_client = TRUE;
window->rect.x = root_x_nw;
window->rect.y = root_y_nw;
}
/* Fill in other frame member variables */
if (window->frame)
{
window->frame->child_x = fgeom.left_width;
window->frame->child_y = fgeom.top_height;
window->frame->right_width = fgeom.right_width;
window->frame->bottom_height = fgeom.bottom_height;
window->frame->bg_pixel = fgeom.background_pixel;
}
/* See ICCCM 4.1.5 for when to send ConfigureNotify */
need_configure_notify = FALSE;
/* If this is a configure request and we change nothing, then we
* must send configure notify.
*/
if (is_configure_request &&
!(need_move_client || need_move_frame ||
need_resize_client || need_resize_frame ||
window->border_width != 0))
need_configure_notify = TRUE;
/* We must send configure notify if we move but don't resize, since
* the client window may not get a real event
*/
if ((need_move_client || need_move_frame) &&
!(need_resize_client || need_resize_frame))
need_configure_notify = TRUE;
/* Sync our new size/pos with X as efficiently as possible */
values.border_width = 0;
values.x = window->rect.x;
values.y = window->rect.y;
values.width = window->rect.width;
values.height = window->rect.height;
mask = 0;
if (is_configure_request && window->border_width != 0)
mask |= CWBorderWidth; /* must force to 0 */
if (need_move_client)
mask |= (CWX | CWY);
if (need_resize_client)
mask |= (CWWidth | CWHeight);
if (mask != 0)
{
{
int newx, newy;
meta_window_get_position (window, &newx, &newy);
meta_verbose ("Syncing new client geometry %d,%d %dx%d, border: %s pos: %s size: %s\n",
newx, newy,
window->rect.width, window->rect.height,
mask & CWBorderWidth ? "true" : "false",
need_move_client ? "true" : "false",
need_resize_client ? "true" : "false");
}
meta_error_trap_push (window->display);
XConfigureWindow (window->display->xdisplay,
window->xwindow,
mask,
&values);
meta_error_trap_pop (window->display);
}
/* Now do the frame */
if (window->frame)
meta_frame_sync_to_window (window->frame, need_move_frame, need_resize_frame);
if (need_configure_notify)
send_configure_notify (window);
/* Invariants leaving this function are:
* a) window->rect and frame->rect reflect the actual
* server-side size/pos of window->xwindow and frame->xwindow
* b) all constraints are obeyed by window->rect and frame->rect
*/
}
void
meta_window_resize (MetaWindow *window,
int w,
int h)
{
int x, y;
meta_window_get_position (window, &x, &y);
meta_window_move_resize_internal (window, FALSE, x, y, w, h);
}
void
meta_window_move (MetaWindow *window,
int root_x_nw,
int root_y_nw)
{
meta_window_move_resize_internal (window, FALSE,
root_x_nw, root_y_nw,
window->rect.width,
window->rect.height);
}
void
meta_window_move_resize (MetaWindow *window,
int root_x_nw,
int root_y_nw,
int w,
int h)
{
meta_window_move_resize_internal (window, FALSE,
root_x_nw, root_y_nw,
w, h);
}
void
meta_window_queue_move_resize (MetaWindow *window)
{
/* FIXME actually queue, don't do it immediately */
int x, y;
meta_window_get_position (window, &x, &y);
meta_window_move_resize (window, x, y,
window->rect.width, window->rect.height);
}
void
meta_window_get_position (MetaWindow *window,
int *x,
int *y)
{
if (window->frame)
{
*x = window->frame->rect.x + window->frame->child_x;
*y = window->frame->rect.y + window->frame->child_y;
}
else
{
*x = window->rect.x;
*y = window->rect.y;
}
}
void
meta_window_delete (MetaWindow *window,
Time timestamp)
{
meta_error_trap_push (window->display);
if (window->delete_window)
{
meta_verbose ("Deleting %s with delete_window request\n",
window->desc);
meta_window_send_icccm_message (window,
window->display->atom_wm_delete_window,
timestamp);
}
else
{
meta_verbose ("Deleting %s with explicit kill\n",
window->desc);
XKillClient (window->display->xdisplay, window->xwindow);
}
meta_error_trap_pop (window->display);
}
void
meta_window_focus (MetaWindow *window,
Time timestamp)
{
meta_verbose ("Setting input focus to window %s, input: %d take_focus: %d\n",
window->desc, window->input, window->take_focus);
meta_error_trap_push (window->display);
if (window->input)
{
XSetInputFocus (window->display->xdisplay,
window->xwindow,
RevertToPointerRoot,
timestamp);
}
if (window->take_focus)
{
meta_window_send_icccm_message (window,
window->display->atom_wm_take_focus,
timestamp);
}
meta_error_trap_pop (window->display);
}
void
meta_window_change_workspace (MetaWindow *window,
MetaWorkspace *workspace)
{
meta_verbose ("Changing window %s to workspace %d\n",
window->desc, meta_workspace_index (workspace));
/* See if we're already on this space */
if (g_list_find (window->workspaces, workspace) != NULL)
{
meta_verbose ("Already on this workspace\n");
return;
}
/* Add first, to maintain invariant that we're always
* on some workspace.
*/
meta_workspace_add_window (workspace, window);
/* Lamely rely on prepend */
g_assert (window->workspaces->data == workspace);
/* Remove from all other spaces */
while (window->workspaces->next) /* while list size > 1 */
meta_workspace_remove_window (window->workspaces->next->data, window);
}
void
meta_window_stick (MetaWindow *window)
{
if (window->on_all_workspaces)
return;
/* We don't change window->workspaces, because we revert
* to that original workspace list if on_all_workspaces is
* toggled back off.
*/
window->on_all_workspaces = TRUE;
meta_window_set_current_workspace_hint (window);
meta_window_queue_calc_showing (window);
}
void
meta_window_unstick (MetaWindow *window)
{
if (!window->on_all_workspaces)
return;
/* Revert to window->workspaces */
window->on_all_workspaces = FALSE;
/* We change ourselves to the active workspace, since otherwise you'd get
* a weird window-vaporization effect. Once we have UI for being
* on more than one workspace this should probably be add_workspace
* not change_workspace.
*/
if (!meta_workspace_contains_window (window->screen->active_workspace,
window))
meta_window_change_workspace (window, window->screen->active_workspace);
meta_window_set_current_workspace_hint (window);
meta_window_queue_calc_showing (window);
}
int
meta_window_set_current_workspace_hint (MetaWindow *window)
{
/* FIXME if on more than one workspace, we claim to be "sticky",
* the WM spec doesn't say what to do here.
*/
unsigned long data[1];
if (window->workspaces == NULL)
return Success; /* this happens when destroying windows */
if (window->on_all_workspaces ||
g_list_length (window->workspaces) > 1)
data[0] = 0xFFFFFFFF;
else
data[0] = meta_workspace_screen_index (window->workspaces->data);
meta_verbose ("Setting _NET_WM_DESKTOP of %s to %ld\n",
window->desc, data[0]);
meta_error_trap_push (window->display);
XChangeProperty (window->display->xdisplay, window->xwindow,
window->display->atom_net_wm_desktop,
XA_CARDINAL,
32, PropModeReplace, (guchar*) data, 1);
return meta_error_trap_pop (window->display);
}
void
meta_window_raise (MetaWindow *window)
{
meta_verbose ("Raising window %s\n", window->desc);
meta_stack_raise (window->screen->stack, window);
}
void
meta_window_send_icccm_message (MetaWindow *window,
Atom atom,
Time timestamp)
{
/* This comment and code are from twm, copyright
* Open Group, Evans & Sutherland, etc.
*/
/*
* ICCCM Client Messages - Section 4.2.8 of the ICCCM dictates that all
* client messages will have the following form:
*
* event type ClientMessage
* message type _XA_WM_PROTOCOLS
* window tmp->w
* format 32
* data[0] message atom
* data[1] time stamp
*/
XClientMessageEvent ev;
/* This should always be error trapped. */
g_return_if_fail (window->display->error_traps != NULL);
ev.type = ClientMessage;
ev.window = window->xwindow;
ev.message_type = window->display->atom_wm_protocols;
ev.format = 32;
ev.data.l[0] = atom;
ev.data.l[1] = timestamp;
XSendEvent (window->display->xdisplay,
window->xwindow, False, 0, (XEvent*) &ev);
}
gboolean
meta_window_configure_request (MetaWindow *window,
XEvent *event)
{
return process_configure_request (window,
event->xconfigurerequest.x,
event->xconfigurerequest.y,
event->xconfigurerequest.width,
event->xconfigurerequest.height,
event->xconfigurerequest.border_width);
}
gboolean
meta_window_property_notify (MetaWindow *window,
XEvent *event)
{
return process_property_notify (window, &event->xproperty);
}
gboolean
meta_window_client_message (MetaWindow *window,
XEvent *event)
{
MetaDisplay *display;
display = window->display;
if (event->xclient.message_type ==
display->atom_net_close_window)
{
/* I think the wm spec should maybe put a time
* in this message, CurrentTime here is sort of
* bogus. But it rarely matters most likely.
*/
meta_window_delete (window, CurrentTime);
return TRUE;
}
else if (event->xclient.message_type ==
display->atom_net_wm_desktop)
{
int space;
MetaWorkspace *workspace;
space = event->xclient.data.l[0];
meta_verbose ("Request to move %s to screen workspace %d\n",
window->desc, space);
workspace =
meta_display_get_workspace_by_screen_index (display,
window->screen,
space);
if (workspace)
{
if (window->on_all_workspaces)
meta_window_unstick (window);
meta_window_change_workspace (window, workspace);
}
else if (space == 0xFFFFFFFF)
{
meta_window_stick (window);
}
else
{
meta_verbose ("No such workspace %d for screen\n", space);
}
return TRUE;
}
else if (event->xclient.message_type ==
display->atom_net_wm_state)
{
gulong action;
Atom first;
Atom second;
action = event->xclient.data.l[0];
first = event->xclient.data.l[1];
second = event->xclient.data.l[2];
if (meta_is_verbose ())
{
char *str1;
char *str2;
meta_error_trap_push (display);
str1 = XGetAtomName (display->xdisplay, first);
if (meta_error_trap_pop (display))
str1 = NULL;
meta_error_trap_push (display);
str2 = XGetAtomName (display->xdisplay, second);
if (meta_error_trap_pop (display))
str2 = NULL;
meta_verbose ("Request to change _NET_WM_STATE action %ld atom1: %s atom2: %s\n",
action,
str1 ? str1 : "(unknown)",
str2 ? str2 : "(unknown)");
if (str1)
XFree (str1);
if (str2)
XFree (str2);
}
if (first == display->atom_net_wm_state_shaded ||
second == display->atom_net_wm_state_shaded)
{
gboolean shade;
shade = (action == _NET_WM_STATE_ADD ||
(action == _NET_WM_STATE_TOGGLE && !window->shaded));
if (shade)
meta_window_shade (window);
else
meta_window_unshade (window);
}
if (first == display->atom_net_wm_state_maximized_horz ||
second == display->atom_net_wm_state_maximized_horz ||
first == display->atom_net_wm_state_maximized_vert ||
second == display->atom_net_wm_state_maximized_vert)
{
gboolean max;
max = (action == _NET_WM_STATE_ADD ||
(action == _NET_WM_STATE_TOGGLE && !window->maximized));
if (max)
meta_window_maximize (window);
else
meta_window_unmaximize (window);
}
if (first == display->atom_net_wm_state_modal ||
second == display->atom_net_wm_state_modal)
{
window->wm_state_modal =
(action == _NET_WM_STATE_ADD) ||
(action == _NET_WM_STATE_TOGGLE && !window->wm_state_modal);
recalc_window_type (window);
meta_window_queue_move_resize (window);
}
if (first == display->atom_net_wm_state_skip_pager ||
second == display->atom_net_wm_state_skip_pager)
{
window->wm_state_skip_pager =
(action == _NET_WM_STATE_ADD) ||
(action == _NET_WM_STATE_TOGGLE && !window->wm_state_skip_pager);
set_net_wm_state (window);
}
if (first == display->atom_net_wm_state_skip_taskbar ||
second == display->atom_net_wm_state_skip_taskbar)
{
window->wm_state_skip_taskbar =
(action == _NET_WM_STATE_ADD) ||
(action == _NET_WM_STATE_TOGGLE && !window->wm_state_skip_taskbar);
set_net_wm_state (window);
}
return TRUE;
}
else if (event->xclient.message_type ==
display->atom_wm_change_state)
{
meta_verbose ("WM_CHANGE_STATE client message, state: %ld\n",
event->xclient.data.l[0]);
if (event->xclient.data.l[0] == IconicState)
meta_window_minimize (window);
return TRUE;
}
return FALSE;
}
static gboolean
process_property_notify (MetaWindow *window,
XPropertyEvent *event)
{
if (event->atom == XA_WM_NAME ||
event->atom == window->display->atom_net_wm_name)
{
update_title (window);
meta_window_queue_move_resize (window);
}
else if (event->atom == XA_WM_NORMAL_HINTS)
{
update_size_hints (window);
/* See if we need to constrain current size */
meta_window_queue_move_resize (window);
}
else if (event->atom == window->display->atom_wm_protocols)
{
update_protocols (window);
meta_window_queue_move_resize (window);
}
else if (event->atom == XA_WM_HINTS)
{
update_wm_hints (window);
meta_window_queue_move_resize (window);
}
else if (event->atom == window->display->atom_motif_wm_hints)
{
update_mwm_hints (window);
if (window->decorated)
meta_window_ensure_frame (window);
else
meta_window_destroy_frame (window);
meta_window_queue_move_resize (window);
}
else if (event->atom == XA_WM_CLASS)
{
update_wm_class (window);
}
else if (event->atom == XA_WM_TRANSIENT_FOR)
{
update_transient_for (window);
meta_window_queue_move_resize (window);
}
else if (event->atom ==
window->display->atom_wm_window_role)
{
update_role (window);
}
else if (event->atom ==
window->display->atom_wm_client_leader ||
event->atom ==
window->display->atom_sm_client_id)
{
meta_warning ("Broken client changed client leader window or SM client ID\n");
}
else if (event->atom ==
window->display->atom_net_wm_window_type)
{
update_net_wm_type (window);
}
return TRUE;
}
static void
send_configure_notify (MetaWindow *window)
{
XEvent event;
/* from twm */
event.type = ConfigureNotify;
event.xconfigure.display = window->display->xdisplay;
event.xconfigure.event = window->xwindow;
event.xconfigure.window = window->xwindow;
event.xconfigure.x = window->rect.x - window->border_width;
event.xconfigure.y = window->rect.y - window->border_width;
if (window->frame)
{
/* Need to be in root window coordinates */
event.xconfigure.x += window->frame->rect.x;
event.xconfigure.y += window->frame->rect.y;
}
event.xconfigure.width = window->rect.width;
event.xconfigure.height = window->rect.height;
event.xconfigure.border_width = window->border_width; /* requested not actual */
event.xconfigure.above = None; /* FIXME */
event.xconfigure.override_redirect = False;
meta_verbose ("Sending synthetic configure notify to %s with x: %d y: %d w: %d h: %d\n",
window->desc,
event.xconfigure.x, event.xconfigure.y,
event.xconfigure.width, event.xconfigure.height);
meta_error_trap_push (window->display);
XSendEvent (window->display->xdisplay,
window->xwindow,
False, StructureNotifyMask, &event);
meta_error_trap_pop (window->display);
}
static gboolean
process_configure_request (MetaWindow *window,
int x, int y,
int width, int height,
int border_width)
{
/* ICCCM 4.1.5 */
/* Note that x, y is the corner of the window border,
* and width, height is the size of the window inside
* its border, but that we always deny border requests
* and give windows a border of 0
*/
window->border_width = border_width;
/* We're ignoring the value_mask here, since sizes
* not in the mask will be the current window geometry.
*/
window->size_hints.x = x;
window->size_hints.y = y;
window->size_hints.width = width;
window->size_hints.height = height;
meta_window_move_resize_internal (window, TRUE,
window->size_hints.x,
window->size_hints.y,
window->size_hints.width,
window->size_hints.height);
return TRUE;
}
static int
update_size_hints (MetaWindow *window)
{
int x, y, w, h;
gulong supplied;
meta_verbose ("Updating WM_NORMAL_HINTS\n");
/* Save the last ConfigureRequest, which we put here.
* Values here set in the hints are supposed to
* be ignored.
*/
x = window->size_hints.x;
y = window->size_hints.y;
w = window->size_hints.width;
h = window->size_hints.height;
window->size_hints.flags = 0;
supplied = 0;
meta_error_trap_push (window->display);
XGetWMNormalHints (window->display->xdisplay,
window->xwindow,
&window->size_hints,
&supplied);
/* as far as I can tell, "supplied" is just
* to check whether we had old-style normal hints
* without gravity, base size as returned by
* XGetNormalHints()
*/
/* Put it back. */
window->size_hints.x = x;
window->size_hints.y = y;
window->size_hints.width = w;
window->size_hints.height = h;
if (window->size_hints.flags & PBaseSize)
{
meta_verbose ("Window %s sets base size %d x %d\n",
window->desc,
window->size_hints.base_width,
window->size_hints.base_height);
}
else if (window->size_hints.flags & PMinSize)
{
window->size_hints.base_width = window->size_hints.min_width;
window->size_hints.base_height = window->size_hints.min_height;
}
else
{
window->size_hints.base_width = 0;
window->size_hints.base_height = 0;
}
window->size_hints.flags |= PBaseSize;
if (window->size_hints.flags & PMinSize)
{
meta_verbose ("Window %s sets min size %d x %d\n",
window->desc,
window->size_hints.min_width,
window->size_hints.min_height);
}
else if (window->size_hints.flags & PBaseSize)
{
window->size_hints.min_width = window->size_hints.base_width;
window->size_hints.min_height = window->size_hints.base_height;
}
else
{
window->size_hints.min_width = 0;
window->size_hints.min_height = 0;
}
window->size_hints.flags |= PMinSize;
if (window->size_hints.flags & PMaxSize)
{
meta_verbose ("Window %s sets max size %d x %d\n",
window->desc,
window->size_hints.max_width,
window->size_hints.max_height);
}
else
{
window->size_hints.max_width = G_MAXINT;
window->size_hints.max_height = G_MAXINT;
window->size_hints.flags |= PMaxSize;
}
if (window->size_hints.flags & PResizeInc)
{
meta_verbose ("Window %s sets resize width inc: %d height inc: %d\n",
window->desc,
window->size_hints.width_inc,
window->size_hints.height_inc);
if (window->size_hints.width_inc == 0)
{
window->size_hints.width_inc = 1;
meta_verbose ("Corrected 0 width_inc to 1\n");
}
if (window->size_hints.height_inc == 0)
{
window->size_hints.height_inc = 1;
meta_verbose ("Corrected 0 height_inc to 1\n");
}
}
else
{
window->size_hints.width_inc = 1;
window->size_hints.height_inc = 1;
window->size_hints.flags |= PResizeInc;
}
if (window->size_hints.flags & PAspect)
{
meta_verbose ("Window %s sets min_aspect: %d/%d max_aspect: %d/%d\n",
window->desc,
window->size_hints.min_aspect.x,
window->size_hints.min_aspect.y,
window->size_hints.max_aspect.x,
window->size_hints.max_aspect.y);
/* don't divide by 0 */
if (window->size_hints.min_aspect.y < 1)
window->size_hints.min_aspect.y = 1;
if (window->size_hints.max_aspect.y < 1)
window->size_hints.max_aspect.y = 1;
}
else
{
window->size_hints.min_aspect.x = 1;
window->size_hints.min_aspect.y = G_MAXINT;
window->size_hints.max_aspect.x = G_MAXINT;
window->size_hints.max_aspect.y = 1;
window->size_hints.flags |= PAspect;
}
if (window->size_hints.flags & PWinGravity)
{
meta_verbose ("Window %s sets gravity %d\n",
window->desc,
window->size_hints.win_gravity);
}
else
{
meta_verbose ("Window %s doesn't set gravity, using NW\n",
window->desc);
window->size_hints.win_gravity = NorthWestGravity;
window->size_hints.flags |= PWinGravity;
}
return meta_error_trap_pop (window->display);
}
static int
update_title (MetaWindow *window)
{
XTextProperty text;
meta_error_trap_push (window->display);
if (window->title)
{
g_free (window->title);
window->title = NULL;
}
XGetTextProperty (window->display->xdisplay,
window->xwindow,
&text,
window->display->atom_net_wm_name);
if (text.nitems > 0 &&
text.format == 8 &&
g_utf8_validate (text.value, text.nitems, NULL))
{
meta_verbose ("Using _NET_WM_NAME for new title of %s: '%s'\n",
window->desc, text.value);
window->title = g_strdup (text.value);
}
if (text.nitems > 0)
XFree (text.value);
if (window->title == NULL &&
text.nitems > 0)
meta_warning ("_NET_WM_NAME property for %s contained invalid UTF-8\n",
window->desc);
if (window->title == NULL)
{
XGetTextProperty (window->display->xdisplay,
window->xwindow,
&text,
XA_WM_NAME);
if (text.nitems > 0)
{
/* FIXME This isn't particularly correct. Need to copy the
* GDK code...
*/
char *str;
GError *err;
err = NULL;
str = g_locale_to_utf8 (text.value,
(text.format / 8) * text.nitems,
NULL, NULL,
&err);
if (err != NULL)
{
meta_warning ("WM_NAME property for %s contained stuff we are too dumb to figure out: %s\n", window->desc, err->message);
g_error_free (err);
}
if (window->title)
meta_verbose ("Using WM_NAME for new title of %s: '%s'\n",
window->desc, text.value);
window->title = str;
XFree (text.value);
}
}
if (window->title == NULL)
window->title = g_strdup ("");
g_free (window->desc);
window->desc = g_strdup_printf ("0x%lx (%.10s)", window->xwindow, window->title);
return meta_error_trap_pop (window->display);
}
static int
update_protocols (MetaWindow *window)
{
Atom *protocols = NULL;
int n_protocols = 0;
int i;
window->take_focus = FALSE;
window->delete_window = FALSE;
meta_error_trap_push (window->display);
if (XGetWMProtocols (window->display->xdisplay,
window->xwindow,
&protocols,
&n_protocols))
{
i = 0;
while (i < n_protocols)
{
if (protocols[i] == window->display->atom_wm_take_focus)
window->take_focus = TRUE;
else if (protocols[i] == window->display->atom_wm_delete_window)
window->delete_window = TRUE;
++i;
}
if (protocols)
XFree (protocols);
}
meta_verbose ("Window %s has take_focus = %d delete_window = %d\n",
window->desc, window->take_focus, window->delete_window);
return meta_error_trap_pop (window->display);
}
static int
update_wm_hints (MetaWindow *window)
{
XWMHints *hints;
/* Fill in defaults */
window->input = FALSE;
window->initially_iconic = FALSE;
meta_error_trap_push (window->display);
hints = XGetWMHints (window->display->xdisplay,
window->xwindow);
if (hints)
{
window->input = (hints->flags & InputHint) != 0;
if (hints->flags & StateHint)
window->initially_iconic = (hints->initial_state == IconicState);
if (hints->flags & WindowGroupHint)
window->xgroup_leader = hints->window_group;
meta_verbose ("Read WM_HINTS input: %d iconic: %d group leader: 0x%ld\n",
window->input, window->initially_iconic,
window->xgroup_leader);
XFree (hints);
}
return meta_error_trap_pop (window->display);
}
static int
update_net_wm_state (MetaWindow *window)
{
/* We know this is only on initial window creation,
* clients don't change the property.
*/
Atom type;
gint format;
gulong n_atoms;
gulong bytes_after;
Atom *atoms;
int result;
int i;
window->shaded = FALSE;
window->maximized = FALSE;
window->wm_state_modal = FALSE;
meta_error_trap_push (window->display);
XGetWindowProperty (window->display->xdisplay, window->xwindow,
window->display->atom_net_wm_state,
0, G_MAXLONG,
False, XA_ATOM, &type, &format, &n_atoms,
&bytes_after, (guchar **)&atoms);
result = meta_error_trap_pop (window->display);
if (result != Success)
{
recalc_window_type (window);
return result;
}
if (type != XA_ATOM)
{
recalc_window_type (window);
return -1; /* whatever */
}
i = 0;
while (i < n_atoms)
{
if (atoms[i] == window->display->atom_net_wm_state_shaded)
window->shaded = TRUE;
else if (atoms[i] == window->display->atom_net_wm_state_maximized_horz)
window->maximized = TRUE;
else if (atoms[i] == window->display->atom_net_wm_state_maximized_vert)
window->maximized = TRUE;
else if (atoms[i] == window->display->atom_net_wm_state_modal)
window->wm_state_modal = TRUE;
++i;
}
XFree (atoms);
recalc_window_type (window);
return Success;
}
/* I don't know of any docs anywhere on what the
* hell most of this means. Copied from Lesstif by
* way of GTK
*/
typedef struct {
unsigned long flags;
unsigned long functions;
unsigned long decorations;
long input_mode;
unsigned long status;
} MotifWmHints, MwmHints;
#define MWM_HINTS_FUNCTIONS (1L << 0)
#define MWM_HINTS_DECORATIONS (1L << 1)
#define MWM_HINTS_INPUT_MODE (1L << 2)
#define MWM_HINTS_STATUS (1L << 3)
#define MWM_FUNC_ALL (1L << 0)
#define MWM_FUNC_RESIZE (1L << 1)
#define MWM_FUNC_MOVE (1L << 2)
#define MWM_FUNC_MINIMIZE (1L << 3)
#define MWM_FUNC_MAXIMIZE (1L << 4)
#define MWM_FUNC_CLOSE (1L << 5)
#define MWM_DECOR_ALL (1L << 0)
#define MWM_DECOR_BORDER (1L << 1)
#define MWM_DECOR_RESIZEH (1L << 2)
#define MWM_DECOR_TITLE (1L << 3)
#define MWM_DECOR_MENU (1L << 4)
#define MWM_DECOR_MINIMIZE (1L << 5)
#define MWM_DECOR_MAXIMIZE (1L << 6)
#define MWM_INPUT_MODELESS 0
#define MWM_INPUT_PRIMARY_APPLICATION_MODAL 1
#define MWM_INPUT_SYSTEM_MODAL 2
#define MWM_INPUT_FULL_APPLICATION_MODAL 3
#define MWM_INPUT_APPLICATION_MODAL MWM_INPUT_PRIMARY_APPLICATION_MODAL
#define MWM_TEAROFF_WINDOW (1L<<0)
static int
update_mwm_hints (MetaWindow *window)
{
MotifWmHints *hints;
Atom type;
gint format;
gulong nitems;
gulong bytes_after;
int result;
window->decorated = TRUE;
window->has_close_func = TRUE;
window->has_minimize_func = TRUE;
window->has_maximize_func = TRUE;
meta_error_trap_push (window->display);
XGetWindowProperty (window->display->xdisplay, window->xwindow,
window->display->atom_motif_wm_hints,
0, sizeof (MotifWmHints)/sizeof (long),
False, AnyPropertyType, &type, &format, &nitems,
&bytes_after, (guchar **)&hints);
result = meta_error_trap_pop (window->display);
if (result != Success)
return result;
if (type == None)
return -1; /* whatever */
/* We support MWM hints deemed non-stupid */
meta_verbose ("Window %s has MWM hints\n",
window->desc);
if (hints->flags & MWM_HINTS_DECORATIONS)
{
meta_verbose ("Window %s sets MWM decorations to 0x%lx\n",
window->desc, hints->decorations);
if (hints->decorations == 0)
window->decorated = FALSE;
}
if (hints->flags & MWM_HINTS_FUNCTIONS)
{
if ((hints->functions & MWM_FUNC_CLOSE) == 0)
{
meta_verbose ("Window %s disables close via MWM hints\n",
window->desc);
window->has_close_func = FALSE;
}
if ((hints->functions & MWM_FUNC_MINIMIZE) == 0)
{
meta_verbose ("Window %s disables minimize via MWM hints\n",
window->desc);
window->has_minimize_func = FALSE;
}
if ((hints->functions & MWM_FUNC_MAXIMIZE) == 0)
{
meta_verbose ("Window %s disables maximize via MWM hints\n",
window->desc);
window->has_maximize_func = FALSE;
}
}
XFree (hints);
return Success;
}
static int
update_wm_class (MetaWindow *window)
{
XClassHint ch;
if (window->res_class)
g_free (window->res_class);
if (window->res_name)
g_free (window->res_name);
window->res_class = NULL;
window->res_name = NULL;
meta_error_trap_push (window->display);
ch.res_name = NULL;
ch.res_class = NULL;
XGetClassHint (window->display->xdisplay,
window->xwindow,
&ch);
if (ch.res_name)
{
window->res_name = g_strdup (ch.res_name);
XFree (ch.res_name);
}
if (ch.res_class)
{
window->res_class = g_strdup (ch.res_class);
XFree (ch.res_class);
}
meta_verbose ("Window %s class: '%s' name: '%s'\n",
window->desc,
window->res_class ? window->res_class : "(null)",
window->res_name ? window->res_name : "(null)");
return meta_error_trap_pop (window->display);
}
static int
read_string_prop (MetaDisplay *display,
Window xwindow,
Atom atom,
char **strp)
{
Atom type;
gint format;
gulong nitems;
gulong bytes_after;
guchar *str;
int result;
meta_error_trap_push (display);
str = NULL;
XGetWindowProperty (display->xdisplay,
xwindow, atom,
0, G_MAXLONG,
False, XA_STRING, &type, &format, &nitems,
&bytes_after, (guchar **)&str);
result = meta_error_trap_pop (display);
if (result != Success)
return result;
if (type != XA_STRING)
return -1; /* whatever */
*strp = g_strdup (str);
XFree (str);
return Success;
}
static Window
read_client_leader (MetaDisplay *display,
Window xwindow)
{
Atom type;
gint format;
gulong nitems;
gulong bytes_after;
Window *leader;
int result;
Window retval;
meta_error_trap_push (display);
leader = NULL;
XGetWindowProperty (display->xdisplay, xwindow,
display->atom_wm_client_leader,
0, G_MAXLONG,
False, XA_WINDOW, &type, &format, &nitems,
&bytes_after, (guchar **)&leader);
result = meta_error_trap_pop (display);
if (result != Success)
return None;
if (type != XA_WINDOW)
return None;
retval = *leader;
XFree (leader);
return retval;
}
static void
update_sm_hints (MetaWindow *window)
{
MetaWindow *w;
Window leader;
window->xclient_leader = None;
window->sm_client_id = NULL;
/* If not on the current window, we can get the client
* leader from transient parents. If we find a client
* leader, we read the SM_CLIENT_ID from it.
*/
leader = None;
w = window;
while (w != NULL)
{
leader = read_client_leader (window->display, w->xwindow);
if (leader != None)
break;
if (w->xtransient_for == None)
break;
w = meta_display_lookup_x_window (w->display, w->xtransient_for);
if (w == window)
break; /* Cute, someone thought they'd make a transient_for cycle */
}
if (leader)
{
window->xclient_leader = leader;
read_string_prop (window->display, leader,
window->display->atom_sm_client_id,
&window->sm_client_id);
meta_verbose ("Window %s client leader: 0x%ld SM_CLIENT_ID: '%s'\n",
window->desc, window->xclient_leader, window->sm_client_id);
}
else
meta_verbose ("Didn't find a client leader for %s\n", window->desc);
}
static int
update_role (MetaWindow *window)
{
int result;
if (window->role)
g_free (window->role);
window->role = NULL;
result = read_string_prop (window->display, window->xwindow,
window->display->atom_wm_window_role,
&window->role);
meta_verbose ("Updated role of %s to '%s'\n",
window->desc, window->role ? window->role : "(null)");
return Success;
}
static int
update_transient_for (MetaWindow *window)
{
Window w;
meta_error_trap_push (window->display);
w = None;
XGetTransientForHint (window->display->xdisplay,
window->xwindow,
&w);
window->xtransient_for = w;
if (window->xtransient_for != None)
meta_verbose ("Window %s transient for 0x%ld\n", window->desc,
window->xtransient_for);
else
meta_verbose ("Window %s is not transient\n", window->desc);
/* may now be a dialog */
recalc_window_type (window);
/* update stacking constraints */
meta_stack_update_transient (window->screen->stack, window);
return meta_error_trap_pop (window->display);
}
static int
update_net_wm_type (MetaWindow *window)
{
Atom type;
gint format;
gulong n_atoms;
gulong bytes_after;
Atom *atoms;
int result;
int i;
window->type_atom = None;
meta_error_trap_push (window->display);
XGetWindowProperty (window->display->xdisplay, window->xwindow,
window->display->atom_net_wm_window_type,
0, G_MAXLONG,
False, XA_ATOM, &type, &format, &n_atoms,
&bytes_after, (guchar **)&atoms);
result = meta_error_trap_pop (window->display);
if (result != Success)
{
recalc_window_type (window);
return result;
}
if (type != XA_ATOM)
{
recalc_window_type (window);
return -1; /* whatever */
}
i = 0;
while (i < n_atoms)
{
/* We break as soon as we find one we recognize,
* supposed to prefer those near the front of the list
*/
if (atoms[i] == window->display->atom_net_wm_window_type_desktop ||
atoms[i] == window->display->atom_net_wm_window_type_dock ||
atoms[i] == window->display->atom_net_wm_window_type_toolbar ||
atoms[i] == window->display->atom_net_wm_window_type_menu ||
atoms[i] == window->display->atom_net_wm_window_type_dialog ||
atoms[i] == window->display->atom_net_wm_window_type_normal)
{
window->type_atom = atoms[i];
break;
}
++i;
}
XFree (atoms);
if (meta_is_verbose ())
{
char *str;
meta_error_trap_push (window->display);
str = XGetAtomName (window->display->xdisplay, window->type_atom);
if (meta_error_trap_pop (window->display))
str = NULL;
meta_verbose ("Window %s type atom %s\n", window->desc,
str ? str : "(none)");
if (str)
XFree (str);
}
recalc_window_type (window);
return Success;
}
static gboolean
get_cardinal (MetaWindow *window,
Atom atom,
gulong *val)
{
Atom type;
gint format;
gulong nitems;
gulong bytes_after;
gulong *num;
int err;
meta_error_trap_push (window->display);
type = None;
XGetWindowProperty (window->display->xdisplay,
window->xwindow,
atom,
0, G_MAXLONG,
False, XA_CARDINAL, &type, &format, &nitems,
&bytes_after, (guchar **)&num);
err = meta_error_trap_pop (window->display);
if (err != Success)
return FALSE;
if (type != XA_CARDINAL)
return FALSE;
*val = *num;
XFree (num);
return TRUE;
}
static int
update_initial_workspace (MetaWindow *window)
{
gulong val = 0;
/* Fall back to old WM spec hint if net_wm_desktop is missing, this
* is just to be nice when restarting from old Sawfish basically,
* should nuke it eventually
*/
if (get_cardinal (window, window->display->atom_net_wm_desktop,
&val))
window->initial_workspace = val;
else if (get_cardinal (window, window->display->atom_win_workspace,
&val))
window->initial_workspace = val;
return Success;
}
static void
recalc_window_type (MetaWindow *window)
{
int old_type;
old_type = window->type;
if (window->type_atom != None)
{
if (window->type_atom == window->display->atom_net_wm_window_type_desktop)
window->type = META_WINDOW_DESKTOP;
else if (window->type_atom == window->display->atom_net_wm_window_type_dock)
window->type = META_WINDOW_DOCK;
else if (window->type_atom == window->display->atom_net_wm_window_type_toolbar)
window->type = META_WINDOW_TOOLBAR;
else if (window->type_atom == window->display->atom_net_wm_window_type_menu)
window->type = META_WINDOW_MENU;
else if (window->type_atom == window->display->atom_net_wm_window_type_dialog)
window->type = META_WINDOW_DIALOG;
else if (window->type_atom == window->display->atom_net_wm_window_type_normal)
window->type = META_WINDOW_NORMAL;
}
else if (window->xtransient_for != None)
{
window->type = META_WINDOW_DIALOG;
}
else
{
window->type = META_WINDOW_NORMAL;
}
if (window->type == META_WINDOW_DIALOG &&
window->wm_state_modal)
window->type = META_WINDOW_MODAL_DIALOG;
meta_verbose ("Calculated type %d for %s\n", window->type, window->desc);
if (old_type != window->type)
{
set_net_wm_state (window);
/* update stacking constraints */
meta_stack_update_layer (window->screen->stack, window);
}
}
static void
constrain_size (MetaWindow *window,
MetaFrameGeometry *fgeom,
int width, int height,
int *new_width, int *new_height)
{
/* This is partially borrowed from GTK (LGPL), which in turn
* partially borrowed from fvwm,
*
* Copyright 1993, Robert Nation
* You may use this code for any purpose, as long as the original
* copyright remains in the source code and all documentation
*
* which in turn borrows parts of the algorithm from uwm
*/
int delta;
double min_aspect, max_aspect;
int minw, minh, maxw, maxh, fullw, fullh;
/* frame member variables should NEVER be used in here */
#define FLOOR(value, base) ( ((gint) ((value) / (base))) * (base) )
/* Get the allowed size ranges, considering maximized, etc. */
fullw = window->screen->active_workspace->workarea.width;
fullh = window->screen->active_workspace->workarea.height;
if (window->frame)
{
fullw -= fgeom->left_width + fgeom->right_width;
fullh -= fgeom->top_height + fgeom->bottom_height;
}
maxw = window->size_hints.max_width;
maxh = window->size_hints.max_height;
/* If user hasn't resized or moved, then try to shrink the window to
* fit onscreen, while not violating the min size, just as
* we do for maximize
*/
if (window->maximized ||
!(window->user_has_resized || window->user_has_moved))
{
maxw = MIN (maxw, fullw);
maxh = MIN (maxh, fullh);
}
minw = window->size_hints.min_width;
minh = window->size_hints.min_height;
/* Check that fullscreen doesn't go under app-specified min size, if
* so snap back to min size
*/
if (maxw < minw)
maxw = minw;
if (maxh < minh)
maxh = minh;
if (window->maximized)
{
minw = MAX (minw, fullw);
minh = MAX (minh, fullh);
}
/* Check that fullscreen doesn't exceed max width hint,
* if so then snap back to max width hint
*/
if (minw > maxw)
minw = maxw;
if (minh > maxh)
minh = maxh;
/* clamp width and height to min and max values
*/
width = CLAMP (width, minw, maxw);
height = CLAMP (height, minh, maxh);
/* shrink to base + N * inc
*/
width = window->size_hints.base_width +
FLOOR (width - window->size_hints.base_width, window->size_hints.width_inc);
height = window->size_hints.base_height +
FLOOR (height - window->size_hints.base_height, window->size_hints.height_inc);
/* constrain aspect ratio, according to:
*
* width
* min_aspect <= -------- <= max_aspect
* height
*/
min_aspect = window->size_hints.min_aspect.x / (double) window->size_hints.min_aspect.y;
max_aspect = window->size_hints.max_aspect.x / (double) window->size_hints.max_aspect.y;
if (min_aspect * height > width)
{
delta = FLOOR (height - width * min_aspect, window->size_hints.height_inc);
if (height - delta >= window->size_hints.min_height)
height -= delta;
else
{
delta = FLOOR (height * min_aspect - width, window->size_hints.width_inc);
if (width + delta <= window->size_hints.max_width)
width += delta;
}
}
if (max_aspect * height < width)
{
delta = FLOOR (width - height * max_aspect, window->size_hints.width_inc);
if (width - delta >= window->size_hints.min_width)
width -= delta;
else
{
delta = FLOOR (width / max_aspect - height, window->size_hints.height_inc);
if (height + delta <= window->size_hints.max_height)
height += delta;
}
}
#undef FLOOR
*new_width = width;
*new_height = height;
}
static void
constrain_position (MetaWindow *window,
MetaFrameGeometry *fgeom,
int x,
int y,
int *new_x,
int *new_y)
{
/* frame member variables should NEVER be used in here, only
* MetaFrameGeometry
*/
if (window->type != META_WINDOW_DESKTOP &&
window->type != META_WINDOW_DOCK)
{
int nw_x, nw_y;
int se_x, se_y;
/* find furthest northwest corner */
nw_x = window->screen->active_workspace->workarea.x;
nw_y = window->screen->active_workspace->workarea.y;
if (window->frame)
{
nw_x += fgeom->left_width;
nw_y += fgeom->top_height;
}
/* don't allow moving titlebar off the top or left */
if (x < nw_x)
x = nw_x;
if (y < nw_y)
y = nw_y;
/* keep titlebar on bottom right as well (but not entire window) */
se_x = window->screen->active_workspace->workarea.x +
window->screen->active_workspace->workarea.width;
se_y = window->screen->active_workspace->workarea.y +
window->screen->active_workspace->workarea.height;
if (window->frame)
{
#define TITLEBAR_LENGTH_ONSCREEN 10
se_x -= (fgeom->left_width + TITLEBAR_LENGTH_ONSCREEN);
se_y -= fgeom->top_height;
}
if (x > se_x)
x = se_x;
if (y > se_y)
y = se_y;
if (window->maximized)
{
if (x != nw_x)
x = nw_x;
if (y != nw_y)
y = nw_y;
}
}
*new_x = x;
*new_y = y;
}
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