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prefs.c
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prefs.c
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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* Marco preferences */
/*
* Copyright (C) 2001 Havoc Pennington, Copyright (C) 2002 Red Hat Inc.
* Copyright (C) 2006 Elijah Newren
* Copyright (C) 2008 Thomas Thurman
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#include <config.h>
#include <glib/gi18n-lib.h>
#include "prefs.h"
#include "ui.h"
#include "util.h"
#include <gdk/gdk.h>
#include <gio/gio.h>
#include <string.h>
#include <stdlib.h>
#define MAX_REASONABLE_WORKSPACES 36
#define MAX_COMMANDS (32 + NUM_EXTRA_COMMANDS)
#define NUM_EXTRA_COMMANDS 2
#define SCREENSHOT_COMMAND_IDX (MAX_COMMANDS - 2)
#define WIN_SCREENSHOT_COMMAND_IDX (MAX_COMMANDS - 1)
/* If you add a key, it needs updating in init() and in the GSettings
* notify listener and of course in the .gschema file.
*
* Keys which are handled by one of the unified handlers below are
* not given a name here, because the purpose of the unified handlers
* is that keys should be referred to exactly once.
*/
#define KEY_GENERAL_SCHEMA "org.mate.Marco.general"
#define KEY_GENERAL_TITLEBAR_FONT "titlebar-font"
#define KEY_GENERAL_NUM_WORKSPACES "num-workspaces"
#define KEY_GENERAL_COMPOSITOR "compositing-manager"
#define KEY_GENERAL_COMPOSITOR_FAST_ALT_TAB "compositing-fast-alt-tab"
#define KEY_GENERAL_CENTER_NEW_WINDOWS "center-new-windows"
#define KEY_GENERAL_ICON_SIZE "icon-size"
#define KEY_GENERAL_ALT_TAB_MAX_COLUMNS "alt-tab-max-columns"
#define KEY_GENERAL_ALT_TAB_RAISE_WINDOWS "alt-tab-raise-windows"
#define KEY_GENERAL_ALT_TAB_EXPAND_TO_FIT_TITLE "alt-tab-expand-to-fit-title"
#define KEY_COMMAND_SCHEMA "org.mate.Marco.keybinding-commands"
#define KEY_COMMAND_PREFIX "command-"
#define KEY_SCREEN_BINDINGS_SCHEMA "org.mate.Marco.global-keybindings"
#define KEY_WINDOW_BINDINGS_SCHEMA "org.mate.Marco.window-keybindings"
#define KEY_WORKSPACE_NAME_SCHEMA "org.mate.Marco.workspace-names"
#define KEY_WORKSPACE_NAME_PREFIX "name-"
#define KEY_MATE_INTERFACE_SCHEMA "org.mate.interface"
#define KEY_MATE_INTERFACE_ACCESSIBILITY "accessibility"
#define KEY_MATE_INTERFACE_ENABLE_ANIMATIONS "enable-animations"
#define KEY_MATE_TERMINAL_SCHEMA "org.mate.applications-terminal"
#define KEY_MATE_TERMINAL_COMMAND "exec"
#define KEY_MATE_MOUSE_SCHEMA "org.mate.peripherals-mouse"
#define KEY_MATE_MOUSE_CURSOR_THEME "cursor-theme"
#define KEY_MATE_MOUSE_CURSOR_SIZE "cursor-size"
#define SETTINGS(s) g_hash_table_lookup (settings_schemas, (s))
static GSettings *settings_general;
static GSettings *settings_command;
static GSettings *settings_screen_bindings;
static GSettings *settings_window_bindings;
static GSettings *settings_workspace_names;
static GSettings *settings_mate_interface;
static GSettings *settings_mate_terminal;
static GSettings *settings_mate_mouse;
static GHashTable *settings_schemas;
static GList *changes = NULL;
static guint changed_idle;
static GList *listeners = NULL;
static gboolean use_system_font = FALSE;
static PangoFontDescription *titlebar_font = NULL;
static MetaVirtualModifier mouse_button_mods = Mod1Mask;
static MetaFocusMode focus_mode = META_FOCUS_MODE_CLICK;
static MetaFocusNewWindows focus_new_windows = META_FOCUS_NEW_WINDOWS_SMART;
static gboolean raise_on_click = TRUE;
static gboolean attach_modal_dialogs = FALSE;
static char* current_theme = NULL;
static int num_workspaces = 4;
static MetaWrapStyle wrap_style = META_WRAP_NONE;
static MetaActionTitlebar action_double_click_titlebar = META_ACTION_TITLEBAR_TOGGLE_MAXIMIZE;
static MetaActionTitlebar action_middle_click_titlebar = META_ACTION_TITLEBAR_LOWER;
static MetaActionTitlebar action_right_click_titlebar = META_ACTION_TITLEBAR_MENU;
static gboolean application_based = FALSE;
static gboolean disable_workarounds = FALSE;
static gboolean auto_raise = FALSE;
static gboolean auto_raise_delay = 500;
static gboolean provide_visual_bell = FALSE;
static gboolean bell_is_audible = TRUE;
static gboolean reduced_resources = FALSE;
static gboolean mate_accessibility = FALSE;
static gboolean mate_animations = TRUE;
static char *cursor_theme = NULL;
static int cursor_size = 24;
static int icon_size = META_DEFAULT_ICON_SIZE;
static int alt_tab_max_columns = META_DEFAULT_ALT_TAB_MAX_COLUMNS;
static gboolean alt_tab_raise_windows = META_DEFAULT_ALT_TAB_RAISE_WINDOWS;
static gboolean alt_tab_expand_to_fit_title = META_DEFAULT_ALT_TAB_EXPAND_TO_FIT_TITLE;
static gboolean use_force_compositor_manager = FALSE;
static gboolean force_compositor_manager = FALSE;
static gboolean compositing_manager = FALSE;
static gboolean compositing_fast_alt_tab = FALSE;
static gboolean resize_with_right_button = FALSE;
static gboolean show_tab_border = FALSE;
static gboolean center_new_windows = FALSE;
static gboolean force_fullscreen = TRUE;
static gboolean allow_tiling = FALSE;
static gboolean allow_top_tiling = TRUE;
static gboolean allow_tile_cycling = TRUE;
static GList *show_desktop_skip_list = NULL;
static MetaVisualBellType visual_bell_type = META_VISUAL_BELL_FULLSCREEN_FLASH;
static MetaButtonLayout button_layout;
/* The screenshot commands are at the end */
static char *commands[MAX_COMMANDS] = { NULL, };
static char *terminal_command = NULL;
static char *workspace_names[MAX_REASONABLE_WORKSPACES] = { NULL, };
static gboolean handle_preference_update_enum (const gchar *key, GSettings *settings);
static gboolean update_key_binding (const char *name,
gchar *value);
static gboolean update_command (const char *name,
const char *value);
static gboolean update_workspace_name (const char *name,
const char *value);
static void change_notify (GSettings *settings,
gchar *key,
gpointer user_data);
static char* settings_key_for_workspace_name (int i);
static void queue_changed (MetaPreference pref);
#if 0
static void cleanup_error (GError **error);
#endif
static void maybe_give_disable_workarounds_warning (void);
static void titlebar_handler (MetaPreference, const gchar*, gboolean*);
static void theme_name_handler (MetaPreference, const gchar*, gboolean*);
static void mouse_button_mods_handler (MetaPreference, const gchar*, gboolean*);
static void button_layout_handler (MetaPreference, const gchar*, gboolean*);
static void show_desktop_skip_list_handler (MetaPreference, const gchar*, gboolean*);
static gboolean update_binding (MetaKeyPref *binding,
gchar *value);
static void init_bindings (GSettings *);
static void init_screen_bindings (void);
static void init_window_bindings (void);
static void init_commands (void);
static void init_workspace_names (void);
static MetaPlacementMode placement_mode = META_PLACEMENT_MODE_AUTOMATIC;
typedef struct
{
MetaPrefsChangedFunc func;
gpointer data;
} MetaPrefsListener;
/**
* The details of one preference which is constrained to be
* one of a small number of string values-- in other words,
* an enumeration.
*
* We could have done this other ways. One particularly attractive
* possibility would have been to represent the entire symbol table
* as a space-separated string literal in the list of symtabs, so
* the focus mode enums could have been represented simply by
* "click sloppy mouse". However, the simplicity gained would have
* been outweighed by the bugs caused when the ordering of the enum
* strings got out of sync with the actual enum statement. Also,
* there is existing library code to use this kind of symbol tables.
*
* Other things we might consider doing to clean this up in the
* future include:
*
* - most of the keys begin with the same prefix, and perhaps we
* could assume it if they don't start with a slash
*
* - there are several cases where a single identifier could be used
* to generate an entire entry, and perhaps this could be done
* with a macro. (This would reduce clarity, however, and is
* probably a bad thing.)
*
* - these types all begin with a gchar* (and contain a MetaPreference)
* and we can factor out the repeated code in the handlers by taking
* advantage of this using some kind of union arrangement.
*/
typedef struct
{
gchar *key;
gchar *schema;
MetaPreference pref;
gint *target;
} MetaEnumPreference;
typedef struct
{
gchar *key;
gchar *schema;
MetaPreference pref;
gboolean *target;
gboolean becomes_true_on_destruction;
} MetaBoolPreference;
typedef struct
{
gchar *key;
gchar *schema;
MetaPreference pref;
/**
* A handler. Many of the string preferences aren't stored as
* strings and need parsing; others of them have default values
* which can't be solved in the general case. If you include a
* function pointer here, it will be called before the string
* value is written out to the target variable.
*
* The function is passed two arguments: the preference, and
* the new string as a gchar*. It returns a gboolean;
* only if this is true, the listeners will be informed that
* the preference has changed.
*
* This may be NULL. If it is, see "target", below.
*/
void (*handler) (MetaPreference pref,
const gchar *string_value,
gboolean *inform_listeners);
/**
* Where to write the incoming string.
*
* This must be NULL if the handler is non-NULL.
* If the incoming string is NULL, no change will be made.
*/
gchar **target;
} MetaStringPreference;
#define METAINTPREFERENCE_NO_CHANGE_ON_DESTROY G_MININT
typedef struct
{
gchar *key;
gchar *schema;
MetaPreference pref;
gint *target;
/**
* Minimum and maximum values of the integer.
* If the new value is out of bounds, it will be discarded with a warning.
*/
gint minimum, maximum;
/**
* Value to use if the key is destroyed.
* If this is METAINTPREFERENCE_NO_CHANGE_ON_DESTROY, it will
* not be changed when the key is destroyed.
*/
gint value_if_destroyed;
} MetaIntPreference;
/* FIXMEs: */
/* @@@ Don't use NULL lines at the end; glib can tell you how big it is */
/* @@@ /apps/marco/general should be assumed if first char is not / */
/* @@@ Will it ever be possible to merge init and update? If not, why not? */
static MetaEnumPreference preferences_enum[] =
{
{ "focus-new-windows",
KEY_GENERAL_SCHEMA,
META_PREF_FOCUS_NEW_WINDOWS,
(gint *) &focus_new_windows,
},
{ "focus-mode",
KEY_GENERAL_SCHEMA,
META_PREF_FOCUS_MODE,
(gint *) &focus_mode,
},
{ "wrap-style",
KEY_GENERAL_SCHEMA,
META_PREF_WRAP_STYLE,
(gint *) &wrap_style,
},
{ "visual-bell-type",
KEY_GENERAL_SCHEMA,
META_PREF_VISUAL_BELL_TYPE,
(gint *) &visual_bell_type,
},
{ "action-double-click-titlebar",
KEY_GENERAL_SCHEMA,
META_PREF_ACTION_DOUBLE_CLICK_TITLEBAR,
(gint *) &action_double_click_titlebar,
},
{ "action-middle-click-titlebar",
KEY_GENERAL_SCHEMA,
META_PREF_ACTION_MIDDLE_CLICK_TITLEBAR,
(gint *) &action_middle_click_titlebar,
},
{ "action-right-click-titlebar",
KEY_GENERAL_SCHEMA,
META_PREF_ACTION_RIGHT_CLICK_TITLEBAR,
(gint *) &action_right_click_titlebar,
},
{ "placement-mode",
KEY_GENERAL_SCHEMA,
META_PREF_PLACEMENT_MODE,
(gint *) &placement_mode,
},
{ NULL, NULL, 0, NULL },
};
static MetaBoolPreference preferences_bool[] =
{
{ "raise-on-click",
KEY_GENERAL_SCHEMA,
META_PREF_RAISE_ON_CLICK,
&raise_on_click,
TRUE,
},
{ "titlebar-uses-system-font",
KEY_GENERAL_SCHEMA,
META_PREF_TITLEBAR_FONT, /* note! shares a pref */
&use_system_font,
TRUE,
},
{ "application-based",
KEY_GENERAL_SCHEMA,
META_PREF_APPLICATION_BASED,
NULL, /* feature is known but disabled */
FALSE,
},
{ "disable-workarounds",
KEY_GENERAL_SCHEMA,
META_PREF_DISABLE_WORKAROUNDS,
&disable_workarounds,
FALSE,
},
{ "auto-raise",
KEY_GENERAL_SCHEMA,
META_PREF_AUTO_RAISE,
&auto_raise,
FALSE,
},
{ "visual-bell",
KEY_GENERAL_SCHEMA,
META_PREF_VISUAL_BELL,
&provide_visual_bell, /* FIXME: change the name: it's confusing */
FALSE,
},
{ "audible-bell",
KEY_GENERAL_SCHEMA,
META_PREF_AUDIBLE_BELL,
&bell_is_audible, /* FIXME: change the name: it's confusing */
FALSE,
},
{ "reduced-resources",
KEY_GENERAL_SCHEMA,
META_PREF_REDUCED_RESOURCES,
&reduced_resources,
FALSE,
},
{ "accessibility",
KEY_MATE_INTERFACE_SCHEMA,
META_PREF_MATE_ACCESSIBILITY,
&mate_accessibility,
FALSE,
},
{ "enable-animations",
KEY_MATE_INTERFACE_SCHEMA,
META_PREF_MATE_ANIMATIONS,
&mate_animations,
TRUE,
},
{ KEY_GENERAL_COMPOSITOR,
KEY_GENERAL_SCHEMA,
META_PREF_COMPOSITING_MANAGER,
&compositing_manager,
FALSE,
},
{ "compositing-fast-alt-tab",
KEY_GENERAL_SCHEMA,
META_PREF_COMPOSITING_FAST_ALT_TAB,
&compositing_fast_alt_tab,
FALSE,
},
{ "resize-with-right-button",
KEY_GENERAL_SCHEMA,
META_PREF_RESIZE_WITH_RIGHT_BUTTON,
&resize_with_right_button,
FALSE,
},
{ "show-tab-border",
KEY_GENERAL_SCHEMA,
META_PREF_SHOW_TAB_BORDER,
&show_tab_border,
FALSE,
},
{ "center-new-windows",
KEY_GENERAL_SCHEMA,
META_PREF_CENTER_NEW_WINDOWS,
¢er_new_windows,
FALSE,
},
{ "allow-tiling",
KEY_GENERAL_SCHEMA,
META_PREF_ALLOW_TILING,
&allow_tiling,
FALSE,
},
{ "allow-top-tiling",
KEY_GENERAL_SCHEMA,
META_PREF_ALLOW_TOP_TILING,
&allow_top_tiling,
FALSE,
},
{ "allow-tile-cycling",
KEY_GENERAL_SCHEMA,
META_PREF_ALLOW_TILE_CYCLING,
&allow_tile_cycling,
FALSE,
},
{ "alt-tab-expand-to-fit-title",
KEY_GENERAL_SCHEMA,
META_PREF_ALT_TAB_EXPAND_TO_FIT_TITLE,
&alt_tab_expand_to_fit_title,
META_DEFAULT_ALT_TAB_EXPAND_TO_FIT_TITLE,
},
{ "alt-tab-raise-windows",
KEY_GENERAL_SCHEMA,
META_PREF_ALT_TAB_RAISE_WINDOWS,
&alt_tab_raise_windows,
META_DEFAULT_ALT_TAB_RAISE_WINDOWS,
},
{ NULL, NULL, 0, NULL, FALSE },
};
static MetaStringPreference preferences_string[] =
{
{ "mouse-button-modifier",
KEY_GENERAL_SCHEMA,
META_PREF_MOUSE_BUTTON_MODS,
mouse_button_mods_handler,
NULL,
},
{ "theme",
KEY_GENERAL_SCHEMA,
META_PREF_THEME,
theme_name_handler,
NULL,
},
{ KEY_GENERAL_TITLEBAR_FONT,
KEY_GENERAL_SCHEMA,
META_PREF_TITLEBAR_FONT,
titlebar_handler,
NULL,
},
{ KEY_MATE_TERMINAL_COMMAND,
KEY_MATE_TERMINAL_SCHEMA,
META_PREF_TERMINAL_COMMAND,
NULL,
&terminal_command,
},
{ "button-layout",
KEY_GENERAL_SCHEMA,
META_PREF_BUTTON_LAYOUT,
button_layout_handler,
NULL,
},
{ "cursor-theme",
KEY_MATE_MOUSE_SCHEMA,
META_PREF_CURSOR_THEME,
NULL,
&cursor_theme,
},
{ "show-desktop-skip-list",
KEY_GENERAL_SCHEMA,
META_PREF_SHOW_DESKTOP_SKIP_LIST,
&show_desktop_skip_list_handler,
NULL,
},
{ NULL, NULL, 0, NULL, NULL },
};
static MetaIntPreference preferences_int[] =
{
{ "num-workspaces",
KEY_GENERAL_SCHEMA,
META_PREF_NUM_WORKSPACES,
&num_workspaces,
/* I would actually recommend we change the destroy value to 4
* and get rid of METAINTPREFERENCE_NO_CHANGE_ON_DESTROY entirely.
* -- tthurman
*/
1, MAX_REASONABLE_WORKSPACES, METAINTPREFERENCE_NO_CHANGE_ON_DESTROY,
},
{ "auto-raise-delay",
KEY_GENERAL_SCHEMA,
META_PREF_AUTO_RAISE_DELAY,
&auto_raise_delay,
0, 10000, 0,
/* @@@ Get rid of MAX_REASONABLE_AUTO_RAISE_DELAY */
},
{ "cursor-size",
KEY_MATE_MOUSE_SCHEMA,
META_PREF_CURSOR_SIZE,
&cursor_size,
1, 128, 24,
},
{ "icon-size",
KEY_GENERAL_SCHEMA,
META_PREF_ICON_SIZE,
&icon_size,
META_MIN_ICON_SIZE, META_MAX_ICON_SIZE, META_DEFAULT_ICON_SIZE,
},
{ "alt-tab-max-columns",
KEY_GENERAL_SCHEMA,
META_PREF_ALT_TAB_MAX_COLUMNS,
&alt_tab_max_columns,
META_MIN_ALT_TAB_MAX_COLUMNS,
META_MAX_ALT_TAB_MAX_COLUMNS,
META_DEFAULT_ALT_TAB_MAX_COLUMNS,
},
{ NULL, NULL, 0, NULL, 0, 0, 0, },
};
static void
handle_preference_init_enum (void)
{
MetaEnumPreference *cursor = preferences_enum;
while (cursor->key!=NULL)
{
gint value;
if (cursor->target==NULL)
{
++cursor;
continue;
}
value = g_settings_get_enum (SETTINGS (cursor->schema),
cursor->key);
*cursor->target = value;
++cursor;
}
}
static void
handle_preference_init_bool (void)
{
MetaBoolPreference *cursor = preferences_bool;
while (cursor->key!=NULL)
{
if (cursor->target!=NULL)
*cursor->target = g_settings_get_boolean (SETTINGS (cursor->schema), cursor->key);
++cursor;
}
maybe_give_disable_workarounds_warning ();
}
static void
handle_preference_init_string (void)
{
MetaStringPreference *cursor = preferences_string;
while (cursor->key!=NULL)
{
gchar *value;
gboolean dummy = TRUE;
/* the string "value" will be newly allocated */
value = g_settings_get_string (SETTINGS (cursor->schema),
cursor->key);
if (cursor->handler)
{
if (cursor->target)
meta_bug ("%s has both a target and a handler\n", cursor->key);
cursor->handler (cursor->pref, value, &dummy);
g_free (value);
}
else if (cursor->target)
{
if (*(cursor->target))
g_free (*(cursor->target));
*(cursor->target) = value;
}
++cursor;
}
}
static void
handle_preference_init_int (void)
{
MetaIntPreference *cursor = preferences_int;
while (cursor->key!=NULL)
{
gint value;
value = g_settings_get_int (SETTINGS (cursor->schema),
cursor->key);
if (value < cursor->minimum || value > cursor->maximum)
{
/* FIXME: check if this can be avoided by GSettings */
meta_warning (_("%d stored in GSettings key %s is out of range %d to %d\n"),
value, cursor->key, cursor->minimum, cursor->maximum);
/* Former behaviour for out-of-range values was:
* - number of workspaces was clamped;
* - auto raise delay was always reset to zero even if too high!;
* - cursor size was ignored.
*
* These seem to be meaningless variations. If they did
* have meaning we could have put them into MetaIntPreference.
* The last of these is the closest to how we behave for
* other types, so I think we should standardise on that.
*/
}
else if (cursor->target)
*cursor->target = value;
++cursor;
}
}
static gboolean
handle_preference_update_enum (const gchar *key, GSettings *settings)
{
MetaEnumPreference *cursor = preferences_enum;
gint old_value;
while (cursor->key!=NULL && strcmp (key, cursor->key)!=0)
++cursor;
if (cursor->key==NULL)
/* Didn't recognise that key. */
return FALSE;
/* We need to know whether the value changes, so
* store the current value away.
*/
old_value = * ((gint *) cursor->target);
/* Now look it up... */
*cursor->target = g_settings_get_enum (settings, key);
/* Did it change? If so, tell the listeners about it. */
if (old_value != *((gint *) cursor->target))
queue_changed (cursor->pref);
return TRUE;
}
static gboolean
handle_preference_update_bool (const gchar *key, GSettings *settings)
{
MetaBoolPreference *cursor = preferences_bool;
gboolean old_value;
while (cursor->key!=NULL && strcmp (key, cursor->key)!=0)
++cursor;
if (cursor->key==NULL)
/* Didn't recognise that key. */
return FALSE;
if (cursor->target==NULL)
/* No work for us to do. */
return TRUE;
/* We need to know whether the value changes, so
* store the current value away.
*/
old_value = * ((gboolean *) cursor->target);
/* Now look it up... */
*((gboolean *) cursor->target) = g_settings_get_boolean (settings, key);
/* Did it change? If so, tell the listeners about it. */
if (old_value != *((gboolean *) cursor->target))
queue_changed (cursor->pref);
if (cursor->pref==META_PREF_DISABLE_WORKAROUNDS)
maybe_give_disable_workarounds_warning ();
return TRUE;
}
static gboolean
handle_preference_update_string (const gchar *key, GSettings *settings)
{
MetaStringPreference *cursor = preferences_string;
gchar *value;
gboolean inform_listeners = TRUE;
while (cursor->key!=NULL && strcmp (key, cursor->key)!=0)
++cursor;
if (cursor->key==NULL)
/* Didn't recognise that key. */
return FALSE;
value = g_settings_get_string (settings, key);
if (cursor->handler)
cursor->handler (cursor->pref, value, &inform_listeners);
else if (cursor->target)
{
if (*(cursor->target))
g_free(*(cursor->target));
if (value!=NULL)
*(cursor->target) = g_strdup (value);
else
*(cursor->target) = NULL;
inform_listeners =
(value==NULL && *(cursor->target)==NULL) ||
(value!=NULL && *(cursor->target)!=NULL &&
strcmp (value, *(cursor->target))==0);
}
if (inform_listeners)
queue_changed (cursor->pref);
g_free (value);
return TRUE;
}
static gboolean
handle_preference_update_int (const gchar *key, GSettings *settings)
{
MetaIntPreference *cursor = preferences_int;
gint value;
while (cursor->key!=NULL && strcmp (key, cursor->key)!=0)
++cursor;
if (cursor->key==NULL)
/* Didn't recognise that key. */
return FALSE;
if (cursor->target==NULL)
/* No work for us to do. */
return TRUE;
value = g_settings_get_int (settings, key);
if (value < cursor->minimum || value > cursor->maximum)
{
/* FIXME! GSettings, instead of MateConf, has Minimum/Maximun in schema!
* But some preferences depends on costants for minimum/maximum values */
meta_warning (_("%d stored in GSettings key %s is out of range %d to %d\n"),
value, cursor->key,
cursor->minimum, cursor->maximum);
return TRUE;
}
/* Did it change? If so, tell the listeners about it. */
if (*cursor->target != value)
{
*cursor->target = value;
queue_changed (cursor->pref);
}
return TRUE;
}
/****************************************************************************/
/* Listeners. */
/****************************************************************************/
void
meta_prefs_add_listener (MetaPrefsChangedFunc func,
gpointer data)
{
MetaPrefsListener *l;
l = g_new (MetaPrefsListener, 1);
l->func = func;
l->data = data;
listeners = g_list_prepend (listeners, l);
}
void
meta_prefs_remove_listener (MetaPrefsChangedFunc func,
gpointer data)
{
GList *tmp;
tmp = listeners;
while (tmp != NULL)
{
MetaPrefsListener *l = tmp->data;
if (l->func == func &&
l->data == data)
{
g_free (l);
listeners = g_list_delete_link (listeners, tmp);
return;
}
tmp = tmp->next;
}
meta_bug ("Did not find listener to remove\n");
}
static void
emit_changed (MetaPreference pref)
{
GList *tmp;
GList *copy;
meta_topic (META_DEBUG_PREFS, "Notifying listeners that pref %s changed\n",
meta_preference_to_string (pref));
copy = g_list_copy (listeners);
tmp = copy;
while (tmp != NULL)
{
MetaPrefsListener *l = tmp->data;
(* l->func) (pref, l->data);
tmp = tmp->next;
}
g_list_free (copy);
}
static gboolean
changed_idle_handler (gpointer data)
{
GList *tmp;
GList *copy;
changed_idle = 0;
copy = g_list_copy (changes); /* reentrancy paranoia */
g_list_free (changes);
changes = NULL;
tmp = copy;
while (tmp != NULL)
{
MetaPreference pref = GPOINTER_TO_INT (tmp->data);
emit_changed (pref);
tmp = tmp->next;
}
g_list_free (copy);
return FALSE;
}
static void
queue_changed (MetaPreference pref)
{
meta_topic (META_DEBUG_PREFS, "Queueing change of pref %s\n",
meta_preference_to_string (pref));
if (g_list_find (changes, GINT_TO_POINTER (pref)) == NULL)
changes = g_list_prepend (changes, GINT_TO_POINTER (pref));
else
meta_topic (META_DEBUG_PREFS, "Change of pref %s was already pending\n",
meta_preference_to_string (pref));
/* add idle at priority below the GSettings notify idle */
/* FIXME is this needed for GSettings too? */
if (changed_idle == 0)
changed_idle = g_idle_add_full (META_PRIORITY_PREFS_NOTIFY,
changed_idle_handler, NULL, NULL);
}
/****************************************************************************/
/* Initialisation. */
/****************************************************************************/
void
meta_prefs_init (void)
{
if (settings_general != NULL)
return;
/* returns references which we hold forever */
settings_general = g_settings_new (KEY_GENERAL_SCHEMA);
settings_command = g_settings_new (KEY_COMMAND_SCHEMA);
settings_screen_bindings = g_settings_new (KEY_SCREEN_BINDINGS_SCHEMA);
settings_window_bindings = g_settings_new (KEY_WINDOW_BINDINGS_SCHEMA);
settings_workspace_names = g_settings_new (KEY_WORKSPACE_NAME_SCHEMA);
settings_mate_interface = g_settings_new (KEY_MATE_INTERFACE_SCHEMA);
settings_mate_terminal = g_settings_new (KEY_MATE_TERMINAL_SCHEMA);
settings_mate_mouse = g_settings_new (KEY_MATE_MOUSE_SCHEMA);
settings_schemas = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, g_object_unref);
g_hash_table_insert (settings_schemas, KEY_GENERAL_SCHEMA, settings_general);
g_hash_table_insert (settings_schemas, KEY_COMMAND_SCHEMA, settings_command);
g_hash_table_insert (settings_schemas, KEY_SCREEN_BINDINGS_SCHEMA, settings_screen_bindings);
g_hash_table_insert (settings_schemas, KEY_WINDOW_BINDINGS_SCHEMA, settings_window_bindings);
g_hash_table_insert (settings_schemas, KEY_WORKSPACE_NAME_SCHEMA, settings_workspace_names);
g_hash_table_insert (settings_schemas, KEY_MATE_INTERFACE_SCHEMA, settings_mate_interface);
g_hash_table_insert (settings_schemas, KEY_MATE_TERMINAL_SCHEMA, settings_mate_terminal);
g_hash_table_insert (settings_schemas, KEY_MATE_MOUSE_SCHEMA, settings_mate_mouse);
g_signal_connect (settings_general, "changed", G_CALLBACK (change_notify), NULL);
g_signal_connect (settings_command, "changed", G_CALLBACK (change_notify), NULL);
g_signal_connect (settings_screen_bindings, "changed", G_CALLBACK (change_notify), NULL);
g_signal_connect (settings_window_bindings, "changed", G_CALLBACK (change_notify), NULL);
g_signal_connect (settings_workspace_names, "changed", G_CALLBACK (change_notify), NULL);
g_signal_connect (settings_mate_interface, "changed::" KEY_MATE_INTERFACE_ACCESSIBILITY, G_CALLBACK (change_notify), NULL);
g_signal_connect (settings_mate_interface, "changed::" KEY_MATE_INTERFACE_ENABLE_ANIMATIONS, G_CALLBACK (change_notify), NULL);
g_signal_connect (settings_mate_terminal, "changed::" KEY_MATE_TERMINAL_COMMAND, G_CALLBACK (change_notify), NULL);
g_signal_connect (settings_mate_mouse, "changed::" KEY_MATE_MOUSE_CURSOR_THEME, G_CALLBACK (change_notify), NULL);
g_signal_connect (settings_mate_mouse, "changed::" KEY_MATE_MOUSE_CURSOR_SIZE, G_CALLBACK (change_notify), NULL);
/* Pick up initial values. */
handle_preference_init_enum ();
handle_preference_init_bool ();
handle_preference_init_string ();
handle_preference_init_int ();
init_screen_bindings ();
init_window_bindings ();
init_commands ();
init_workspace_names ();
}
/****************************************************************************/
/* Updates. */
/****************************************************************************/
gboolean (*preference_update_handler[]) (const gchar*, GSettings*) = {
handle_preference_update_enum,
handle_preference_update_bool,
handle_preference_update_string,
handle_preference_update_int,
NULL