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mutter/src/window-props.c
Elijah Newren 0201fcfc6c Stick an emacs comment directive at the beginning of all the code files so 
2006-10-01  Elijah Newren  <newren gmail com>

	* src/*.[ch]: Stick an emacs comment directive at the beginning of
	all the code files so that people using emacs will be more likely
	to get coding style correct in their patches.  We still need a
	similar vi directive.  #358866
2006-10-01 22:30:10 +00:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* MetaWindow property handling */
/*
* Copyright (C) 2001, 2002, 2003 Red Hat, Inc.
* Copyright (C) 2004, 2005 Elijah Newren
*
* 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 <config.h>
#include "window-props.h"
#include "errors.h"
#include "xprops.h"
#include "frame.h"
#include "group.h"
#include <X11/Xatom.h>
#include <unistd.h>
#include <string.h>
#ifndef HOST_NAME_MAX
/* Solaris headers apparently don't define this so do so manually; #326745 */
#define HOST_NAME_MAX 255
#endif
typedef void (* InitValueFunc) (MetaDisplay *display,
Atom property,
MetaPropValue *value);
typedef void (* ReloadValueFunc) (MetaWindow *window,
MetaPropValue *value);
struct _MetaWindowPropHooks
{
Atom property;
InitValueFunc init_func;
ReloadValueFunc reload_func;
};
static void init_prop_value (MetaDisplay *display,
Atom property,
MetaPropValue *value);
static void reload_prop_value (MetaWindow *window,
MetaPropValue *value);
static MetaWindowPropHooks* find_hooks (MetaDisplay *display,
Atom property);
void
meta_window_reload_property (MetaWindow *window,
Atom property)
{
meta_window_reload_properties (window, &property, 1);
}
void
meta_window_reload_properties (MetaWindow *window,
const Atom *properties,
int n_properties)
{
int i;
MetaPropValue *values;
g_return_if_fail (properties != NULL);
g_return_if_fail (n_properties > 0);
values = g_new0 (MetaPropValue, n_properties);
i = 0;
while (i < n_properties)
{
init_prop_value (window->display, properties[i], &values[i]);
++i;
}
meta_prop_get_values (window->display, window->xwindow,
values, n_properties);
i = 0;
while (i < n_properties)
{
reload_prop_value (window, &values[i]);
++i;
}
meta_prop_free_values (values, n_properties);
g_free (values);
}
/* Fill in the MetaPropValue used to get the value of "property" */
static void
init_prop_value (MetaDisplay *display,
Atom property,
MetaPropValue *value)
{
MetaWindowPropHooks *hooks;
value->type = META_PROP_VALUE_INVALID;
value->atom = None;
hooks = find_hooks (display, property);
if (hooks && hooks->init_func != NULL)
(* hooks->init_func) (display, property, value);
}
static void
reload_prop_value (MetaWindow *window,
MetaPropValue *value)
{
MetaWindowPropHooks *hooks;
hooks = find_hooks (window->display, value->atom);
if (hooks && hooks->reload_func != NULL)
(* hooks->reload_func) (window, value);
}
static void
init_wm_client_machine (MetaDisplay *display,
Atom property,
MetaPropValue *value)
{
value->type = META_PROP_VALUE_STRING;
value->atom = display->atom_wm_client_machine;
}
static void
reload_wm_client_machine (MetaWindow *window,
MetaPropValue *value)
{
g_free (window->wm_client_machine);
window->wm_client_machine = NULL;
if (value->type != META_PROP_VALUE_INVALID)
window->wm_client_machine = g_strdup (value->v.str);
meta_verbose ("Window has client machine \"%s\"\n",
window->wm_client_machine ? window->wm_client_machine : "unset");
}
static void
init_net_wm_pid (MetaDisplay *display,
Atom property,
MetaPropValue *value)
{
value->type = META_PROP_VALUE_CARDINAL;
value->atom = display->atom_net_wm_pid;
}
static void
reload_net_wm_pid (MetaWindow *window,
MetaPropValue *value)
{
if (value->type != META_PROP_VALUE_INVALID)
{
gulong cardinal = (int) value->v.cardinal;
if (cardinal <= 0)
meta_warning (_("Application set a bogus _NET_WM_PID %lu\n"),
cardinal);
else
{
window->net_wm_pid = cardinal;
meta_verbose ("Window has _NET_WM_PID %d\n",
window->net_wm_pid);
}
}
}
static void
init_net_wm_user_time (MetaDisplay *display,
Atom property,
MetaPropValue *value)
{
value->type = META_PROP_VALUE_CARDINAL;
value->atom = display->atom_net_wm_user_time;
}
static void
reload_net_wm_user_time (MetaWindow *window,
MetaPropValue *value)
{
if (value->type != META_PROP_VALUE_INVALID)
{
gulong cardinal = value->v.cardinal;
meta_window_set_user_time (window, cardinal);
}
}
#define MAX_TITLE_LENGTH 512
/**
* Called by set_window_title and set_icon_title to set the value of
* *target to title. It required and atom is set, it will update the
* appropriate property.
*
* Returns TRUE if a new title was set.
*/
static gboolean
set_title_text (MetaWindow *window,
gboolean previous_was_modified,
const char *title,
Atom atom,
char **target)
{
char hostname[HOST_NAME_MAX + 1];
gboolean modified = FALSE;
if (!target)
return FALSE;
g_free (*target);
if (!title)
*target = g_strdup ("");
else if (g_utf8_strlen (title, MAX_TITLE_LENGTH + 1) > MAX_TITLE_LENGTH)
{
*target = meta_g_utf8_strndup (title, MAX_TITLE_LENGTH);
modified = TRUE;
}
/* if WM_CLIENT_MACHINE indicates this machine is on a remote host
* lets place that hostname in the title */
else if (window->wm_client_machine &&
!gethostname (hostname, HOST_NAME_MAX + 1) &&
strcmp (hostname, window->wm_client_machine))
{
*target = g_strdup_printf (_("%s (on %s)"),
title, window->wm_client_machine);
modified = TRUE;
}
else
*target = g_strdup (title);
if (modified && atom != None)
meta_prop_set_utf8_string_hint (window->display,
window->xwindow,
atom, *target);
/* Bug 330671 -- Don't forget to clear _NET_WM_VISIBLE_(ICON_)NAME */
if (!modified && previous_was_modified)
{
meta_error_trap_push (window->display);
XDeleteProperty (window->display->xdisplay,
window->xwindow,
atom);
meta_error_trap_pop (window->display, FALSE);
}
return modified;
}
static void
set_window_title (MetaWindow *window,
const char *title)
{
char *str;
gboolean modified =
set_title_text (window,
window->using_net_wm_visible_name,
title,
window->display->atom_net_wm_visible_name,
&window->title);
window->using_net_wm_visible_name = modified;
/* strndup is a hack since GNU libc has broken %.10s */
str = g_strndup (window->title, 10);
g_free (window->desc);
window->desc = g_strdup_printf ("0x%lx (%s)", window->xwindow, str);
g_free (str);
if (window->frame)
meta_ui_set_frame_title (window->screen->ui,
window->frame->xwindow,
window->title);
}
static void
init_net_wm_name (MetaDisplay *display,
Atom property,
MetaPropValue *value)
{
value->type = META_PROP_VALUE_UTF8;
value->atom = display->atom_net_wm_name;
}
static void
reload_net_wm_name (MetaWindow *window,
MetaPropValue *value)
{
if (value->type != META_PROP_VALUE_INVALID)
{
set_window_title (window, value->v.str);
window->using_net_wm_name = TRUE;
meta_verbose ("Using _NET_WM_NAME for new title of %s: \"%s\"\n",
window->desc, window->title);
}
else
{
set_window_title (window, NULL);
window->using_net_wm_name = FALSE;
}
}
static void
init_wm_name (MetaDisplay *display,
Atom property,
MetaPropValue *value)
{
value->type = META_PROP_VALUE_TEXT_PROPERTY;
value->atom = XA_WM_NAME;
}
static void
reload_wm_name (MetaWindow *window,
MetaPropValue *value)
{
if (window->using_net_wm_name)
{
meta_verbose ("Ignoring WM_NAME \"%s\" as _NET_WM_NAME is set\n",
value->v.str);
return;
}
if (value->type != META_PROP_VALUE_INVALID)
{
set_window_title (window, value->v.str);
meta_verbose ("Using WM_NAME for new title of %s: \"%s\"\n",
window->desc, window->title);
}
else
{
set_window_title (window, NULL);
}
}
static void
set_icon_title (MetaWindow *window,
const char *title)
{
gboolean modified =
set_title_text (window,
window->using_net_wm_visible_icon_name,
title,
window->display->atom_net_wm_visible_icon_name,
&window->icon_name);
window->using_net_wm_visible_icon_name = modified;
}
static void
init_net_wm_icon_name (MetaDisplay *display,
Atom property,
MetaPropValue *value)
{
value->type = META_PROP_VALUE_UTF8;
value->atom = display->atom_net_wm_icon_name;
}
static void
reload_net_wm_icon_name (MetaWindow *window,
MetaPropValue *value)
{
if (value->type != META_PROP_VALUE_INVALID)
{
set_icon_title (window, value->v.str);
window->using_net_wm_icon_name = TRUE;
meta_verbose ("Using _NET_WM_ICON_NAME for new title of %s: \"%s\"\n",
window->desc, window->title);
}
else
{
set_icon_title (window, NULL);
window->using_net_wm_icon_name = FALSE;
}
}
static void
init_wm_icon_name (MetaDisplay *display,
Atom property,
MetaPropValue *value)
{
value->type = META_PROP_VALUE_TEXT_PROPERTY;
value->atom = XA_WM_ICON_NAME;
}
static void
reload_wm_icon_name (MetaWindow *window,
MetaPropValue *value)
{
if (window->using_net_wm_icon_name)
{
meta_verbose ("Ignoring WM_ICON_NAME \"%s\" as _NET_WM_ICON_NAME is set\n",
value->v.str);
return;
}
if (value->type != META_PROP_VALUE_INVALID)
{
set_icon_title (window, value->v.str);
meta_verbose ("Using WM_ICON_NAME for new title of %s: \"%s\"\n",
window->desc, window->title);
}
else
{
set_icon_title (window, NULL);
}
}
static void
init_net_wm_state (MetaDisplay *display,
Atom property,
MetaPropValue *value)
{
value->type = META_PROP_VALUE_ATOM_LIST;
value->atom = display->atom_net_wm_state;
}
static void
reload_net_wm_state (MetaWindow *window,
MetaPropValue *value)
{
int i;
/* We know this is only an initial window creation,
* clients don't change the property.
*/
window->shaded = FALSE;
window->maximized_horizontally = FALSE;
window->maximized_vertically = FALSE;
window->wm_state_modal = FALSE;
window->wm_state_skip_taskbar = FALSE;
window->wm_state_skip_pager = FALSE;
window->wm_state_above = FALSE;
window->wm_state_below = FALSE;
window->wm_state_demands_attention = FALSE;
if (value->type == META_PROP_VALUE_INVALID)
return;
i = 0;
while (i < value->v.atom_list.n_atoms)
{
if (value->v.atom_list.atoms[i] == window->display->atom_net_wm_state_shaded)
window->shaded = TRUE;
else if (value->v.atom_list.atoms[i] == window->display->atom_net_wm_state_maximized_horz)
window->maximize_horizontally_after_placement = TRUE;
else if (value->v.atom_list.atoms[i] == window->display->atom_net_wm_state_maximized_vert)
window->maximize_vertically_after_placement = TRUE;
else if (value->v.atom_list.atoms[i] == window->display->atom_net_wm_state_hidden)
window->minimize_after_placement = TRUE;
else if (value->v.atom_list.atoms[i] == window->display->atom_net_wm_state_modal)
window->wm_state_modal = TRUE;
else if (value->v.atom_list.atoms[i] == window->display->atom_net_wm_state_skip_taskbar)
window->wm_state_skip_taskbar = TRUE;
else if (value->v.atom_list.atoms[i] == window->display->atom_net_wm_state_skip_pager)
window->wm_state_skip_pager = TRUE;
else if (value->v.atom_list.atoms[i] == window->display->atom_net_wm_state_fullscreen)
window->fullscreen = TRUE;
else if (value->v.atom_list.atoms[i] == window->display->atom_net_wm_state_above)
window->wm_state_above = TRUE;
else if (value->v.atom_list.atoms[i] == window->display->atom_net_wm_state_below)
window->wm_state_below = TRUE;
else if (value->v.atom_list.atoms[i] == window->display->atom_net_wm_state_demands_attention)
window->wm_state_demands_attention = TRUE;
++i;
}
meta_verbose ("Reloaded _NET_WM_STATE for %s\n",
window->desc);
meta_window_recalc_window_type (window);
}
static void
init_mwm_hints (MetaDisplay *display,
Atom property,
MetaPropValue *value)
{
value->type = META_PROP_VALUE_MOTIF_HINTS;
value->atom = display->atom_motif_wm_hints;
}
static void
reload_mwm_hints (MetaWindow *window,
MetaPropValue *value)
{
MotifWmHints *hints;
window->mwm_decorated = TRUE;
window->mwm_border_only = FALSE;
window->mwm_has_close_func = TRUE;
window->mwm_has_minimize_func = TRUE;
window->mwm_has_maximize_func = TRUE;
window->mwm_has_move_func = TRUE;
window->mwm_has_resize_func = TRUE;
if (value->type == META_PROP_VALUE_INVALID)
{
meta_verbose ("Window %s has no MWM hints\n", window->desc);
meta_window_recalc_features (window);
return;
}
hints = value->v.motif_hints;
/* We support those 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_HINTS_DECORATIONS 0x%lx\n",
window->desc, hints->decorations);
if (hints->decorations == 0)
window->mwm_decorated = FALSE;
/* some input methods use this */
else if (hints->decorations == MWM_DECOR_BORDER)
window->mwm_border_only = TRUE;
}
else
meta_verbose ("Decorations flag unset\n");
if (hints->flags & MWM_HINTS_FUNCTIONS)
{
gboolean toggle_value;
meta_verbose ("Window %s sets MWM_HINTS_FUNCTIONS 0x%lx\n",
window->desc, hints->functions);
/* If _ALL is specified, then other flags indicate what to turn off;
* if ALL is not specified, flags are what to turn on.
* at least, I think so
*/
if ((hints->functions & MWM_FUNC_ALL) == 0)
{
toggle_value = TRUE;
meta_verbose ("Window %s disables all funcs then reenables some\n",
window->desc);
window->mwm_has_close_func = FALSE;
window->mwm_has_minimize_func = FALSE;
window->mwm_has_maximize_func = FALSE;
window->mwm_has_move_func = FALSE;
window->mwm_has_resize_func = FALSE;
}
else
{
meta_verbose ("Window %s enables all funcs then disables some\n",
window->desc);
toggle_value = FALSE;
}
if ((hints->functions & MWM_FUNC_CLOSE) != 0)
{
meta_verbose ("Window %s toggles close via MWM hints\n",
window->desc);
window->mwm_has_close_func = toggle_value;
}
if ((hints->functions & MWM_FUNC_MINIMIZE) != 0)
{
meta_verbose ("Window %s toggles minimize via MWM hints\n",
window->desc);
window->mwm_has_minimize_func = toggle_value;
}
if ((hints->functions & MWM_FUNC_MAXIMIZE) != 0)
{
meta_verbose ("Window %s toggles maximize via MWM hints\n",
window->desc);
window->mwm_has_maximize_func = toggle_value;
}
if ((hints->functions & MWM_FUNC_MOVE) != 0)
{
meta_verbose ("Window %s toggles move via MWM hints\n",
window->desc);
window->mwm_has_move_func = toggle_value;
}
if ((hints->functions & MWM_FUNC_RESIZE) != 0)
{
meta_verbose ("Window %s toggles resize via MWM hints\n",
window->desc);
window->mwm_has_resize_func = toggle_value;
}
}
else
meta_verbose ("Functions flag unset\n");
meta_window_recalc_features (window);
/* We do all this anyhow at the end of meta_window_new() */
if (!window->constructing)
{
if (window->decorated)
meta_window_ensure_frame (window);
else
meta_window_destroy_frame (window);
meta_window_queue_move_resize (window);
/* because ensure/destroy frame may unmap */
meta_window_queue_calc_showing (window);
}
}
static void
init_wm_class (MetaDisplay *display,
Atom property,
MetaPropValue *value)
{
value->type = META_PROP_VALUE_CLASS_HINT;
value->atom = XA_WM_CLASS;
}
static void
reload_wm_class (MetaWindow *window,
MetaPropValue *value)
{
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;
if (value->type != META_PROP_VALUE_INVALID)
{
if (value->v.class_hint.res_name)
window->res_name = g_strdup (value->v.class_hint.res_name);
if (value->v.class_hint.res_class)
window->res_class = g_strdup (value->v.class_hint.res_class);
}
meta_verbose ("Window %s class: '%s' name: '%s'\n",
window->desc,
window->res_class ? window->res_class : "none",
window->res_name ? window->res_name : "none");
}
static void
init_net_wm_desktop (MetaDisplay *display,
Atom property,
MetaPropValue *value)
{
value->type = META_PROP_VALUE_CARDINAL;
value->atom = display->atom_net_wm_desktop;
}
static void
reload_net_wm_desktop (MetaWindow *window,
MetaPropValue *value)
{
if (value->type != META_PROP_VALUE_INVALID)
{
window->initial_workspace_set = TRUE;
window->initial_workspace = value->v.cardinal;
meta_topic (META_DEBUG_PLACEMENT,
"Read initial workspace prop %d for %s\n",
window->initial_workspace, window->desc);
}
}
static void
init_net_startup_id (MetaDisplay *display,
Atom property,
MetaPropValue *value)
{
value->type = META_PROP_VALUE_UTF8;
value->atom = display->atom_net_startup_id;
}
static void
reload_net_startup_id (MetaWindow *window,
MetaPropValue *value)
{
guint32 timestamp = window->net_wm_user_time;
MetaWorkspace *workspace = NULL;
g_free (window->startup_id);
if (value->type != META_PROP_VALUE_INVALID)
window->startup_id = g_strdup (value->v.str);
else
window->startup_id = NULL;
/* Update timestamp and workspace on a running window */
if (!window->constructing)
{
window->initial_timestamp_set = 0;
window->initial_workspace_set = 0;
meta_screen_apply_startup_properties (window->screen, window);
if (window->initial_timestamp_set)
timestamp = window->initial_timestamp;
if (window->initial_workspace_set)
workspace = meta_screen_get_workspace_by_index (window->screen, window->initial_workspace);
meta_window_activate_with_workspace (window, timestamp, workspace);
}
meta_verbose ("New _NET_STARTUP_ID \"%s\" for %s\n",
window->startup_id ? window->startup_id : "unset",
window->desc);
}
static void
init_update_counter (MetaDisplay *display,
Atom property,
MetaPropValue *value)
{
value->type = META_PROP_VALUE_SYNC_COUNTER;
value->atom = display->atom_net_wm_sync_request_counter;
}
static void
reload_update_counter (MetaWindow *window,
MetaPropValue *value)
{
if (value->type != META_PROP_VALUE_INVALID)
{
#ifdef HAVE_XSYNC
XSyncCounter counter = value->v.xcounter;
window->sync_request_counter = counter;
meta_verbose ("Window has _NET_WM_SYNC_REQUEST_COUNTER 0x%lx\n",
window->sync_request_counter);
#endif
}
}
static void
init_normal_hints (MetaDisplay *display,
Atom property,
MetaPropValue *value)
{
value->type = META_PROP_VALUE_SIZE_HINTS;
value->atom = XA_WM_NORMAL_HINTS;
}
#define FLAG_TOGGLED_ON(old,new,flag) \
(((old)->flags & (flag)) == 0 && \
((new)->flags & (flag)) != 0)
#define FLAG_TOGGLED_OFF(old,new,flag) \
(((old)->flags & (flag)) != 0 && \
((new)->flags & (flag)) == 0)
#define FLAG_CHANGED(old,new,flag) \
(FLAG_TOGGLED_ON(old,new,flag) || FLAG_TOGGLED_OFF(old,new,flag))
static void
spew_size_hints_differences (const XSizeHints *old,
const XSizeHints *new)
{
if (FLAG_CHANGED (old, new, USPosition))
meta_topic (META_DEBUG_GEOMETRY, "XSizeHints: USPosition now %s\n",
FLAG_TOGGLED_ON (old, new, USPosition) ? "set" : "unset");
if (FLAG_CHANGED (old, new, USSize))
meta_topic (META_DEBUG_GEOMETRY, "XSizeHints: USSize now %s\n",
FLAG_TOGGLED_ON (old, new, USSize) ? "set" : "unset");
if (FLAG_CHANGED (old, new, PPosition))
meta_topic (META_DEBUG_GEOMETRY, "XSizeHints: PPosition now %s\n",
FLAG_TOGGLED_ON (old, new, PPosition) ? "set" : "unset");
if (FLAG_CHANGED (old, new, PSize))
meta_topic (META_DEBUG_GEOMETRY, "XSizeHints: PSize now %s\n",
FLAG_TOGGLED_ON (old, new, PSize) ? "set" : "unset");
if (FLAG_CHANGED (old, new, PMinSize))
meta_topic (META_DEBUG_GEOMETRY, "XSizeHints: PMinSize now %s (%d x %d -> %d x %d)\n",
FLAG_TOGGLED_ON (old, new, PMinSize) ? "set" : "unset",
old->min_width, old->min_height,
new->min_width, new->min_height);
if (FLAG_CHANGED (old, new, PMaxSize))
meta_topic (META_DEBUG_GEOMETRY, "XSizeHints: PMaxSize now %s (%d x %d -> %d x %d)\n",
FLAG_TOGGLED_ON (old, new, PMaxSize) ? "set" : "unset",
old->max_width, old->max_height,
new->max_width, new->max_height);
if (FLAG_CHANGED (old, new, PResizeInc))
meta_topic (META_DEBUG_GEOMETRY, "XSizeHints: PResizeInc now %s (width_inc %d -> %d height_inc %d -> %d)\n",
FLAG_TOGGLED_ON (old, new, PResizeInc) ? "set" : "unset",
old->width_inc, new->width_inc,
old->height_inc, new->height_inc);
if (FLAG_CHANGED (old, new, PAspect))
meta_topic (META_DEBUG_GEOMETRY, "XSizeHints: PAspect now %s (min %d/%d -> %d/%d max %d/%d -> %d/%d)\n",
FLAG_TOGGLED_ON (old, new, PAspect) ? "set" : "unset",
old->min_aspect.x, old->min_aspect.y,
new->min_aspect.x, new->min_aspect.y,
old->max_aspect.x, old->max_aspect.y,
new->max_aspect.x, new->max_aspect.y);
if (FLAG_CHANGED (old, new, PBaseSize))
meta_topic (META_DEBUG_GEOMETRY, "XSizeHints: PBaseSize now %s (%d x %d -> %d x %d)\n",
FLAG_TOGGLED_ON (old, new, PBaseSize) ? "set" : "unset",
old->base_width, old->base_height,
new->base_width, new->base_height);
if (FLAG_CHANGED (old, new, PWinGravity))
meta_topic (META_DEBUG_GEOMETRY, "XSizeHints: PWinGravity now %s (%d -> %d)\n",
FLAG_TOGGLED_ON (old, new, PWinGravity) ? "set" : "unset",
old->win_gravity, new->win_gravity);
}
void
meta_set_normal_hints (MetaWindow *window,
XSizeHints *hints)
{
int x, y, w, h;
/* 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;
/* as far as I can tell, value->v.size_hints.flags is just to
* check whether we had old-style normal hints without gravity,
* base size as returned by XGetNormalHints(), so we don't
* really use it as we fixup window->size_hints to have those
* fields if they're missing.
*/
/*
* When the window is first created, NULL hints will
* be passed in which will initialize all of the fields
* as if flags were zero
*/
if (hints)
window->size_hints = *hints;
else
window->size_hints.flags = 0;
/* Put back saved ConfigureRequest. */
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_topic (META_DEBUG_GEOMETRY, "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_topic (META_DEBUG_GEOMETRY, "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_topic (META_DEBUG_GEOMETRY, "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.max_width < window->size_hints.min_width)
{
/* someone is on crack */
meta_topic (META_DEBUG_GEOMETRY,
"Window %s sets max width %d less than min width %d, disabling resize\n",
window->desc,
window->size_hints.max_width,
window->size_hints.min_width);
window->size_hints.max_width = window->size_hints.min_width;
}
if (window->size_hints.max_height < window->size_hints.min_height)
{
/* another cracksmoker */
meta_topic (META_DEBUG_GEOMETRY,
"Window %s sets max height %d less than min height %d, disabling resize\n",
window->desc,
window->size_hints.max_height,
window->size_hints.min_height);
window->size_hints.max_height = window->size_hints.min_height;
}
if (window->size_hints.min_width < 1)
{
/* another cracksmoker */
meta_topic (META_DEBUG_GEOMETRY,
"Window %s sets min width to 0, which makes no sense\n",
window->desc);
window->size_hints.min_width = 1;
}
if (window->size_hints.max_width < 1)
{
/* another cracksmoker */
meta_topic (META_DEBUG_GEOMETRY,
"Window %s sets max width to 0, which makes no sense\n",
window->desc);
window->size_hints.max_width = 1;
}
if (window->size_hints.min_height < 1)
{
/* another cracksmoker */
meta_topic (META_DEBUG_GEOMETRY,
"Window %s sets min height to 0, which makes no sense\n",
window->desc);
window->size_hints.min_height = 1;
}
if (window->size_hints.max_height < 1)
{
/* another cracksmoker */
meta_topic (META_DEBUG_GEOMETRY,
"Window %s sets max height to 0, which makes no sense\n",
window->desc);
window->size_hints.max_height = 1;
}
if (window->size_hints.flags & PResizeInc)
{
meta_topic (META_DEBUG_GEOMETRY, "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_topic (META_DEBUG_GEOMETRY, "Corrected 0 width_inc to 1\n");
}
if (window->size_hints.height_inc == 0)
{
window->size_hints.height_inc = 1;
meta_topic (META_DEBUG_GEOMETRY, "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_topic (META_DEBUG_GEOMETRY, "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_topic (META_DEBUG_GEOMETRY, "Window %s sets gravity %d\n",
window->desc,
window->size_hints.win_gravity);
}
else
{
meta_topic (META_DEBUG_GEOMETRY, "Window %s doesn't set gravity, using NW\n",
window->desc);
window->size_hints.win_gravity = NorthWestGravity;
window->size_hints.flags |= PWinGravity;
}
}
static void
reload_normal_hints (MetaWindow *window,
MetaPropValue *value)
{
if (value->type != META_PROP_VALUE_INVALID)
{
XSizeHints old_hints;
meta_topic (META_DEBUG_GEOMETRY, "Updating WM_NORMAL_HINTS for %s\n", window->desc);
old_hints = window->size_hints;
meta_set_normal_hints (window, value->v.size_hints.hints);
spew_size_hints_differences (&old_hints, &window->size_hints);
meta_window_recalc_features (window);
}
}
static void
init_wm_protocols (MetaDisplay *display,
Atom property,
MetaPropValue *value)
{
value->type = META_PROP_VALUE_ATOM_LIST;
value->atom = display->atom_wm_protocols;
}
static void
reload_wm_protocols (MetaWindow *window,
MetaPropValue *value)
{
int i;
window->take_focus = FALSE;
window->delete_window = FALSE;
window->net_wm_ping = FALSE;
if (value->type == META_PROP_VALUE_INVALID)
return;
i = 0;
while (i < value->v.atom_list.n_atoms)
{
if (value->v.atom_list.atoms[i] ==
window->display->atom_wm_take_focus)
window->take_focus = TRUE;
else if (value->v.atom_list.atoms[i] ==
window->display->atom_wm_delete_window)
window->delete_window = TRUE;
else if (value->v.atom_list.atoms[i] ==
window->display->atom_net_wm_ping)
window->net_wm_ping = TRUE;
++i;
}
meta_verbose ("New _NET_STARTUP_ID \"%s\" for %s\n",
window->startup_id ? window->startup_id : "unset",
window->desc);
}
static void
init_wm_hints (MetaDisplay *display,
Atom property,
MetaPropValue *value)
{
value->type = META_PROP_VALUE_WM_HINTS;
value->atom = XA_WM_HINTS;
}
static void
reload_wm_hints (MetaWindow *window,
MetaPropValue *value)
{
Window old_group_leader;
old_group_leader = window->xgroup_leader;
/* Fill in defaults */
window->input = TRUE;
window->initially_iconic = FALSE;
window->xgroup_leader = None;
window->wm_hints_pixmap = None;
window->wm_hints_mask = None;
if (value->type != META_PROP_VALUE_INVALID)
{
const XWMHints *hints = value->v.wm_hints;
if (hints->flags & InputHint)
window->input = hints->input;
if (hints->flags & StateHint)
window->initially_iconic = (hints->initial_state == IconicState);
if (hints->flags & WindowGroupHint)
window->xgroup_leader = hints->window_group;
if (hints->flags & IconPixmapHint)
window->wm_hints_pixmap = hints->icon_pixmap;
if (hints->flags & IconMaskHint)
window->wm_hints_mask = hints->icon_mask;
meta_verbose ("Read WM_HINTS input: %d iconic: %d group leader: 0x%lx pixmap: 0x%lx mask: 0x%lx\n",
window->input, window->initially_iconic,
window->xgroup_leader,
window->wm_hints_pixmap,
window->wm_hints_mask);
}
if (window->xgroup_leader != old_group_leader)
{
meta_verbose ("Window %s changed its group leader to 0x%lx\n",
window->desc, window->xgroup_leader);
meta_window_group_leader_changed (window);
}
meta_icon_cache_property_changed (&window->icon_cache,
window->display,
XA_WM_HINTS);
meta_window_queue_update_icon (window);
meta_window_queue_move_resize (window);
}
static void
init_transient_for (MetaDisplay *display,
Atom property,
MetaPropValue *value)
{
value->type = META_PROP_VALUE_WINDOW;
value->atom = XA_WM_TRANSIENT_FOR;
}
static void
reload_transient_for (MetaWindow *window,
MetaPropValue *value)
{
window->xtransient_for = None;
if (value->type != META_PROP_VALUE_INVALID)
window->xtransient_for = value->v.xwindow;
/* Make sure transient_for is valid */
if (window->xtransient_for != None &&
meta_display_lookup_x_window (window->display,
window->xtransient_for) == NULL)
{
meta_warning (_("Invalid WM_TRANSIENT_FOR window 0x%lx specified "
"for %s.\n"),
window->xtransient_for, window->desc);
window->xtransient_for = None;
}
window->transient_parent_is_root_window =
window->xtransient_for == window->screen->xroot;
if (window->xtransient_for != None)
meta_verbose ("Window %s transient for 0x%lx (root = %d)\n", window->desc,
window->xtransient_for, window->transient_parent_is_root_window);
else
meta_verbose ("Window %s is not transient\n", window->desc);
/* may now be a dialog */
meta_window_recalc_window_type (window);
/* update stacking constraints */
meta_stack_update_transient (window->screen->stack, window);
/* possibly change its group. We treat being a window's transient as
* equivalent to making it your group leader, to work around shortcomings
* in programs such as xmms-- see #328211.
*/
if (window->xtransient_for != None &&
window->xgroup_leader != None &&
window->xtransient_for != window->xgroup_leader)
meta_window_group_leader_changed (window);
if (!window->constructing)
meta_window_queue_move_resize (window);
}
#define N_HOOKS 25
void
meta_display_init_window_prop_hooks (MetaDisplay *display)
{
int i;
MetaWindowPropHooks *hooks;
g_assert (display->prop_hooks == NULL);
display->prop_hooks = g_new0 (MetaWindowPropHooks, N_HOOKS);
hooks = display->prop_hooks;
i = 0;
hooks[i].property = display->atom_wm_state;
hooks[i].init_func = NULL;
hooks[i].reload_func = NULL;
++i;
hooks[i].property = display->atom_wm_client_machine;
hooks[i].init_func = init_wm_client_machine;
hooks[i].reload_func = reload_wm_client_machine;
++i;
hooks[i].property = display->atom_net_wm_pid;
hooks[i].init_func = init_net_wm_pid;
hooks[i].reload_func = reload_net_wm_pid;
++i;
hooks[i].property = display->atom_net_wm_user_time;
hooks[i].init_func = init_net_wm_user_time;
hooks[i].reload_func = reload_net_wm_user_time;
++i;
hooks[i].property = display->atom_net_wm_name;
hooks[i].init_func = init_net_wm_name;
hooks[i].reload_func = reload_net_wm_name;
++i;
hooks[i].property = XA_WM_NAME;
hooks[i].init_func = init_wm_name;
hooks[i].reload_func = reload_wm_name;
++i;
hooks[i].property = display->atom_net_wm_icon_name;
hooks[i].init_func = init_net_wm_icon_name;
hooks[i].reload_func = reload_net_wm_icon_name;
++i;
hooks[i].property = XA_WM_ICON_NAME;
hooks[i].init_func = init_wm_icon_name;
hooks[i].reload_func = reload_wm_icon_name;
++i;
hooks[i].property = display->atom_net_wm_state;
hooks[i].init_func = init_net_wm_state;
hooks[i].reload_func = reload_net_wm_state;
++i;
hooks[i].property = display->atom_motif_wm_hints;
hooks[i].init_func = init_mwm_hints;
hooks[i].reload_func = reload_mwm_hints;
++i;
hooks[i].property = display->atom_net_wm_icon_geometry;
hooks[i].init_func = NULL;
hooks[i].reload_func = NULL;
++i;
hooks[i].property = XA_WM_CLASS;
hooks[i].init_func = init_wm_class;
hooks[i].reload_func = reload_wm_class;
++i;
hooks[i].property = display->atom_wm_client_leader;
hooks[i].init_func = NULL;
hooks[i].reload_func = NULL;
++i;
hooks[i].property = display->atom_sm_client_id;
hooks[i].init_func = NULL;
hooks[i].reload_func = NULL;
++i;
hooks[i].property = display->atom_wm_window_role;
hooks[i].init_func = NULL;
hooks[i].reload_func = NULL;
++i;
hooks[i].property = display->atom_net_wm_window_type;
hooks[i].init_func = NULL;
hooks[i].reload_func = NULL;
++i;
hooks[i].property = display->atom_net_wm_desktop;
hooks[i].init_func = init_net_wm_desktop;
hooks[i].reload_func = reload_net_wm_desktop;
++i;
hooks[i].property = display->atom_net_wm_strut;
hooks[i].init_func = NULL;
hooks[i].reload_func = NULL;
++i;
hooks[i].property = display->atom_net_wm_strut_partial;
hooks[i].init_func = NULL;
hooks[i].reload_func = NULL;
++i;
hooks[i].property = display->atom_net_startup_id;
hooks[i].init_func = init_net_startup_id;
hooks[i].reload_func = reload_net_startup_id;
++i;
hooks[i].property = display->atom_net_wm_sync_request_counter;
hooks[i].init_func = init_update_counter;
hooks[i].reload_func = reload_update_counter;
++i;
hooks[i].property = XA_WM_NORMAL_HINTS;
hooks[i].init_func = init_normal_hints;
hooks[i].reload_func = reload_normal_hints;
++i;
hooks[i].property = display->atom_wm_protocols;
hooks[i].init_func = init_wm_protocols;
hooks[i].reload_func = reload_wm_protocols;
++i;
hooks[i].property = XA_WM_HINTS;
hooks[i].init_func = init_wm_hints;
hooks[i].reload_func = reload_wm_hints;
++i;
hooks[i].property = XA_WM_TRANSIENT_FOR;
hooks[i].init_func = init_transient_for;
hooks[i].reload_func = reload_transient_for;
++i;
if (i != N_HOOKS)
g_error ("Initialized %d hooks should have been %d\n", i, N_HOOKS);
}
void
meta_display_free_window_prop_hooks (MetaDisplay *display)
{
g_assert (display->prop_hooks != NULL);
g_free (display->prop_hooks);
display->prop_hooks = NULL;
}
static MetaWindowPropHooks*
find_hooks (MetaDisplay *display,
Atom property)
{
int i;
/* FIXME we could sort the array and do binary search or
* something
*/
i = 0;
while (i < N_HOOKS)
{
if (display->prop_hooks[i].property == property)
return &display->prop_hooks[i];
++i;
}
return NULL;
}
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