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mutter/src/backends/meta-monitor-config-store.c
Jonas Ådahl b49421d8e8 monitor-config-store: Allow changing D-Bus configuration policy 
Adding a <dbus/> element containing a boolean (yes/no) determines
whether org.gnome.Mutter.DisplayConfig ApplyMonitorsConfig will be
callable. The state is also introspectable via the
ApplyMonitorsConfigAllowed property on the same interface.

For example

    <monitors version="2">
      <policy>
        <dbus>no</dbus>
      </policy>
    </monitors>

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2030>
2022-01-25 16:25:48 +00:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2017 Red Hat
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#include "config.h"
#include "backends/meta-monitor-config-store.h"
#include <gio/gio.h>
#include <string.h>
#include "backends/meta-monitor-config-manager.h"
#include "backends/meta-monitor-config-migration.h"
#define MONITORS_CONFIG_XML_FORMAT_VERSION 2
#define QUOTE1(a) #a
#define QUOTE(a) QUOTE1(a)
/*
* Example configuration:
*
* <monitors version="2">
* <configuration>
* <logicalmonitor>
* <x>0</x>
* <y>0</y>
* <scale>1</scale>
* <monitor>
* <monitorspec>
* <connector>LVDS1</connector>
* <vendor>Vendor A</vendor>
* <product>Product A</product>
* <serial>Serial A</serial>
* </monitorspec>
* <mode>
* <width>1920</width>
* <height>1080</height>
* <rate>60.049972534179688</rate>
* <flag>interlace</flag>
* </mode>
* </monitor>
* <transform>
* <rotation>right</rotation>
* <flipped>no</flipped>
* </transform>
* <primary>yes</primary>
* <presentation>no</presentation>
* </logicalmonitor>
* <logicalmonitor>
* <x>1920</x>
* <y>1080</y>
* <monitor>
* <monitorspec>
* <connector>LVDS2</connector>
* <vendor>Vendor B</vendor>
* <product>Product B</product>
* <serial>Serial B</serial>
* </monitorspec>
* <mode>
* <width>1920</width>
* <height>1080</height>
* <rate>60.049972534179688</rate>
* </mode>
* <underscanning>yes</underscanning>
* </monitor>
* <presentation>yes</presentation>
* </logicalmonitor>
* <disabled>
* <monitorspec>
* <connector>LVDS3</connector>
* <vendor>Vendor C</vendor>
* <product>Product C</product>
* <serial>Serial C</serial>
* </monitorspec>
* </disabled>
* </configuration>
* </monitors>
*
*/
enum
{
PROP_0,
PROP_MONITOR_MANAGER,
PROP_LAST
};
static GParamSpec *obj_props[PROP_LAST];
struct _MetaMonitorConfigStore
{
GObject parent;
MetaMonitorManager *monitor_manager;
GHashTable *configs;
GCancellable *save_cancellable;
GFile *user_file;
GFile *custom_read_file;
GFile *custom_write_file;
gboolean has_stores_policy;
GList *stores_policy;
gboolean has_dbus_policy;
MetaMonitorConfigPolicy policy;
};
#define META_MONITOR_CONFIG_STORE_ERROR (meta_monitor_config_store_error_quark ())
static GQuark meta_monitor_config_store_error_quark (void);
enum
{
META_MONITOR_CONFIG_STORE_ERROR_NEEDS_MIGRATION
};
G_DEFINE_QUARK (meta-monitor-config-store-error-quark,
meta_monitor_config_store_error)
typedef enum
{
STATE_INITIAL,
STATE_UNKNOWN,
STATE_MONITORS,
STATE_CONFIGURATION,
STATE_MIGRATED,
STATE_LOGICAL_MONITOR,
STATE_LOGICAL_MONITOR_X,
STATE_LOGICAL_MONITOR_Y,
STATE_LOGICAL_MONITOR_PRIMARY,
STATE_LOGICAL_MONITOR_PRESENTATION,
STATE_LOGICAL_MONITOR_SCALE,
STATE_TRANSFORM,
STATE_TRANSFORM_ROTATION,
STATE_TRANSFORM_FLIPPED,
STATE_MONITOR,
STATE_MONITOR_SPEC,
STATE_MONITOR_SPEC_CONNECTOR,
STATE_MONITOR_SPEC_VENDOR,
STATE_MONITOR_SPEC_PRODUCT,
STATE_MONITOR_SPEC_SERIAL,
STATE_MONITOR_MODE,
STATE_MONITOR_MODE_WIDTH,
STATE_MONITOR_MODE_HEIGHT,
STATE_MONITOR_MODE_RATE,
STATE_MONITOR_MODE_FLAG,
STATE_MONITOR_UNDERSCANNING,
STATE_DISABLED,
STATE_POLICY,
STATE_STORES,
STATE_STORE,
STATE_DBUS,
} ParserState;
typedef struct
{
ParserState state;
MetaMonitorConfigStore *config_store;
GFile *file;
GHashTable *pending_configs;
ParserState monitor_spec_parent_state;
gboolean current_was_migrated;
GList *current_logical_monitor_configs;
MetaMonitorSpec *current_monitor_spec;
gboolean current_transform_flipped;
MetaMonitorTransform current_transform;
MetaMonitorModeSpec *current_monitor_mode_spec;
MetaMonitorConfig *current_monitor_config;
MetaLogicalMonitorConfig *current_logical_monitor_config;
GList *current_disabled_monitor_specs;
gboolean seen_policy;
gboolean seen_stores;
gboolean seen_dbus;
MetaConfigStore pending_store;
GList *stores;
gboolean enable_dbus_set;
gboolean enable_dbus;
ParserState unknown_state_root;
int unknown_level;
MetaMonitorsConfigFlag extra_config_flags;
} ConfigParser;
G_DEFINE_TYPE (MetaMonitorConfigStore, meta_monitor_config_store,
G_TYPE_OBJECT)
static gboolean
text_equals (const char *text,
int len,
const char *expect)
{
if (strlen (expect) != len)
return FALSE;
return strncmp (text, expect, len) == 0;
}
static void
enter_unknown_element (ConfigParser *parser,
const char *element_name,
const char *root_element_name,
ParserState root_state)
{
parser->state = STATE_UNKNOWN;
parser->unknown_level = 1;
parser->unknown_state_root = root_state;
g_warning ("Unknown element <%s> under <%s>, ignoring",
element_name, root_element_name);
}
static void
handle_start_element (GMarkupParseContext *context,
const char *element_name,
const char **attribute_names,
const char **attribute_values,
gpointer user_data,
GError **error)
{
ConfigParser *parser = user_data;
switch (parser->state)
{
case STATE_INITIAL:
{
char *version;
if (!g_str_equal (element_name, "monitors"))
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_UNKNOWN_ELEMENT,
"Invalid document element '%s'", element_name);
return;
}
if (!g_markup_collect_attributes (element_name, attribute_names, attribute_values,
error,
G_MARKUP_COLLECT_STRING, "version", &version,
G_MARKUP_COLLECT_INVALID))
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
"Missing config file format version");
}
if (g_str_equal (version, "1"))
{
g_set_error_literal (error,
META_MONITOR_CONFIG_STORE_ERROR,
META_MONITOR_CONFIG_STORE_ERROR_NEEDS_MIGRATION,
"monitors.xml has the old format");
return;
}
if (!g_str_equal (version, QUOTE (MONITORS_CONFIG_XML_FORMAT_VERSION)))
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
"Invalid or unsupported version '%s'", version);
return;
}
parser->state = STATE_MONITORS;
return;
}
case STATE_MONITORS:
{
if (g_str_equal (element_name, "configuration"))
{
parser->state = STATE_CONFIGURATION;
parser->current_was_migrated = FALSE;
}
else if (g_str_equal (element_name, "policy"))
{
if (parser->seen_policy)
{
g_set_error (error,
G_MARKUP_ERROR, G_MARKUP_ERROR_UNKNOWN_ELEMENT,
"Multiple policy definitions");
return;
}
parser->seen_policy = TRUE;
parser->state = STATE_POLICY;
}
else
{
enter_unknown_element (parser, element_name,
"monitors", STATE_MONITORS);
return;
}
return;
}
case STATE_UNKNOWN:
{
parser->unknown_level++;
return;
}
case STATE_CONFIGURATION:
{
if (g_str_equal (element_name, "logicalmonitor"))
{
parser->current_logical_monitor_config =
g_new0 (MetaLogicalMonitorConfig, 1);
parser->state = STATE_LOGICAL_MONITOR;
}
else if (g_str_equal (element_name, "migrated"))
{
parser->current_was_migrated = TRUE;
parser->state = STATE_MIGRATED;
}
else if (g_str_equal (element_name, "disabled"))
{
parser->state = STATE_DISABLED;
}
else
{
enter_unknown_element (parser, element_name,
"configuration", STATE_CONFIGURATION);
}
return;
}
case STATE_MIGRATED:
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_UNKNOWN_ELEMENT,
"Unexpected element '%s'", element_name);
return;
}
case STATE_LOGICAL_MONITOR:
{
if (g_str_equal (element_name, "x"))
{
parser->state = STATE_LOGICAL_MONITOR_X;
}
else if (g_str_equal (element_name, "y"))
{
parser->state = STATE_LOGICAL_MONITOR_Y;
}
else if (g_str_equal (element_name, "scale"))
{
parser->state = STATE_LOGICAL_MONITOR_SCALE;
}
else if (g_str_equal (element_name, "primary"))
{
parser->state = STATE_LOGICAL_MONITOR_PRIMARY;
}
else if (g_str_equal (element_name, "presentation"))
{
parser->state = STATE_LOGICAL_MONITOR_PRESENTATION;
}
else if (g_str_equal (element_name, "transform"))
{
parser->state = STATE_TRANSFORM;
}
else if (g_str_equal (element_name, "monitor"))
{
parser->current_monitor_config = g_new0 (MetaMonitorConfig, 1);
parser->state = STATE_MONITOR;
}
else
{
enter_unknown_element (parser, element_name,
"logicalmonitor", STATE_LOGICAL_MONITOR);
}
return;
}
case STATE_LOGICAL_MONITOR_X:
case STATE_LOGICAL_MONITOR_Y:
case STATE_LOGICAL_MONITOR_SCALE:
case STATE_LOGICAL_MONITOR_PRIMARY:
case STATE_LOGICAL_MONITOR_PRESENTATION:
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_UNKNOWN_ELEMENT,
"Invalid logical monitor element '%s'", element_name);
return;
}
case STATE_TRANSFORM:
{
if (g_str_equal (element_name, "rotation"))
{
parser->state = STATE_TRANSFORM_ROTATION;
}
else if (g_str_equal (element_name, "flipped"))
{
parser->state = STATE_TRANSFORM_FLIPPED;
}
return;
}
case STATE_TRANSFORM_ROTATION:
case STATE_TRANSFORM_FLIPPED:
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_UNKNOWN_ELEMENT,
"Invalid transform element '%s'", element_name);
return;
}
case STATE_MONITOR:
{
if (g_str_equal (element_name, "monitorspec"))
{
parser->current_monitor_spec = g_new0 (MetaMonitorSpec, 1);
parser->monitor_spec_parent_state = STATE_MONITOR;
parser->state = STATE_MONITOR_SPEC;
}
else if (g_str_equal (element_name, "mode"))
{
parser->current_monitor_mode_spec = g_new0 (MetaMonitorModeSpec, 1);
parser->state = STATE_MONITOR_MODE;
}
else if (g_str_equal (element_name, "underscanning"))
{
parser->state = STATE_MONITOR_UNDERSCANNING;
}
else
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_UNKNOWN_ELEMENT,
"Invalid monitor element '%s'", element_name);
return;
}
return;
}
case STATE_MONITOR_SPEC:
{
if (g_str_equal (element_name, "connector"))
{
parser->state = STATE_MONITOR_SPEC_CONNECTOR;
}
else if (g_str_equal (element_name, "vendor"))
{
parser->state = STATE_MONITOR_SPEC_VENDOR;
}
else if (g_str_equal (element_name, "product"))
{
parser->state = STATE_MONITOR_SPEC_PRODUCT;
}
else if (g_str_equal (element_name, "serial"))
{
parser->state = STATE_MONITOR_SPEC_SERIAL;
}
else
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_UNKNOWN_ELEMENT,
"Invalid monitor spec element '%s'", element_name);
return;
}
return;
}
case STATE_MONITOR_SPEC_CONNECTOR:
case STATE_MONITOR_SPEC_VENDOR:
case STATE_MONITOR_SPEC_PRODUCT:
case STATE_MONITOR_SPEC_SERIAL:
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_UNKNOWN_ELEMENT,
"Invalid monitor spec element '%s'", element_name);
return;
}
case STATE_MONITOR_MODE:
{
if (g_str_equal (element_name, "width"))
{
parser->state = STATE_MONITOR_MODE_WIDTH;
}
else if (g_str_equal (element_name, "height"))
{
parser->state = STATE_MONITOR_MODE_HEIGHT;
}
else if (g_str_equal (element_name, "rate"))
{
parser->state = STATE_MONITOR_MODE_RATE;
}
else if (g_str_equal (element_name, "flag"))
{
parser->state = STATE_MONITOR_MODE_FLAG;
}
else
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_UNKNOWN_ELEMENT,
"Invalid mode element '%s'", element_name);
return;
}
return;
}
case STATE_MONITOR_MODE_WIDTH:
case STATE_MONITOR_MODE_HEIGHT:
case STATE_MONITOR_MODE_RATE:
case STATE_MONITOR_MODE_FLAG:
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_UNKNOWN_ELEMENT,
"Invalid mode sub element '%s'", element_name);
return;
}
case STATE_MONITOR_UNDERSCANNING:
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_UNKNOWN_ELEMENT,
"Invalid element '%s' under underscanning", element_name);
return;
}
case STATE_DISABLED:
{
if (!g_str_equal (element_name, "monitorspec"))
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_UNKNOWN_ELEMENT,
"Invalid element '%s' under disabled", element_name);
return;
}
parser->current_monitor_spec = g_new0 (MetaMonitorSpec, 1);
parser->monitor_spec_parent_state = STATE_DISABLED;
parser->state = STATE_MONITOR_SPEC;
return;
}
case STATE_POLICY:
{
if (!(parser->extra_config_flags &
META_MONITORS_CONFIG_FLAG_SYSTEM_CONFIG))
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
"Policy can only be defined in system level configurations");
return;
}
if (g_str_equal (element_name, "stores"))
{
if (parser->seen_stores)
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_UNKNOWN_ELEMENT,
"Multiple stores elements under policy");
return;
}
parser->seen_stores = TRUE;
parser->state = STATE_STORES;
}
else if (g_str_equal (element_name, "dbus"))
{
if (parser->seen_dbus)
{
g_set_error (error,
G_MARKUP_ERROR, G_MARKUP_ERROR_UNKNOWN_ELEMENT,
"Multiple dbus elements under policy");
return;
}
parser->seen_dbus = TRUE;
parser->state = STATE_DBUS;
}
else
{
enter_unknown_element (parser, element_name,
"policy", STATE_POLICY);
}
return;
}
case STATE_STORES:
{
if (g_str_equal (element_name, "store"))
{
parser->state = STATE_STORE;
}
else
{
enter_unknown_element (parser, element_name,
"stores", STATE_STORES);
}
return;
}
case STATE_STORE:
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_UNKNOWN_ELEMENT,
"Invalid store sub element '%s'", element_name);
return;
}
case STATE_DBUS:
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_UNKNOWN_ELEMENT,
"Invalid dbus sub element '%s'", element_name);
return;
}
}
}
static gboolean
derive_logical_monitor_layout (MetaLogicalMonitorConfig *logical_monitor_config,
MetaLogicalMonitorLayoutMode layout_mode,
GError **error)
{
MetaMonitorConfig *monitor_config;
int mode_width, mode_height;
int width = 0, height = 0;
GList *l;
monitor_config = logical_monitor_config->monitor_configs->data;
mode_width = monitor_config->mode_spec->width;
mode_height = monitor_config->mode_spec->height;
for (l = logical_monitor_config->monitor_configs->next; l; l = l->next)
{
monitor_config = l->data;
if (monitor_config->mode_spec->width != mode_width ||
monitor_config->mode_spec->height != mode_height)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Monitors in logical monitor incompatible");
return FALSE;
}
}
if (meta_monitor_transform_is_rotated (logical_monitor_config->transform))
{
width = mode_height;
height = mode_width;
}
else
{
width = mode_width;
height = mode_height;
}
switch (layout_mode)
{
case META_LOGICAL_MONITOR_LAYOUT_MODE_LOGICAL:
width = roundf (width / logical_monitor_config->scale);
height = roundf (height / logical_monitor_config->scale);
break;
case META_LOGICAL_MONITOR_LAYOUT_MODE_PHYSICAL:
break;
}
logical_monitor_config->layout.width = width;
logical_monitor_config->layout.height = height;
return TRUE;
}
static void
finish_monitor_spec (ConfigParser *parser)
{
switch (parser->monitor_spec_parent_state)
{
case STATE_MONITOR:
{
parser->current_monitor_config->monitor_spec =
parser->current_monitor_spec;
parser->current_monitor_spec = NULL;
return;
}
case STATE_DISABLED:
{
parser->current_disabled_monitor_specs =
g_list_prepend (parser->current_disabled_monitor_specs,
parser->current_monitor_spec);
parser->current_monitor_spec = NULL;
return;
}
default:
g_assert_not_reached ();
}
}
static void
handle_end_element (GMarkupParseContext *context,
const char *element_name,
gpointer user_data,
GError **error)
{
ConfigParser *parser = user_data;
switch (parser->state)
{
case STATE_LOGICAL_MONITOR_X:
case STATE_LOGICAL_MONITOR_Y:
case STATE_LOGICAL_MONITOR_SCALE:
case STATE_LOGICAL_MONITOR_PRIMARY:
case STATE_LOGICAL_MONITOR_PRESENTATION:
{
parser->state = STATE_LOGICAL_MONITOR;
return;
}
case STATE_TRANSFORM:
{
g_assert (g_str_equal (element_name, "transform"));
parser->current_logical_monitor_config->transform =
parser->current_transform;
if (parser->current_transform_flipped)
{
parser->current_logical_monitor_config->transform +=
META_MONITOR_TRANSFORM_FLIPPED;
}
parser->current_transform = META_MONITOR_TRANSFORM_NORMAL;
parser->current_transform_flipped = FALSE;
parser->state = STATE_LOGICAL_MONITOR;
return;
}
case STATE_TRANSFORM_ROTATION:
case STATE_TRANSFORM_FLIPPED:
{
parser->state = STATE_TRANSFORM;
return;
}
case STATE_MONITOR_SPEC_CONNECTOR:
case STATE_MONITOR_SPEC_VENDOR:
case STATE_MONITOR_SPEC_PRODUCT:
case STATE_MONITOR_SPEC_SERIAL:
{
parser->state = STATE_MONITOR_SPEC;
return;
}
case STATE_MONITOR_SPEC:
{
g_assert (g_str_equal (element_name, "monitorspec"));
if (!meta_verify_monitor_spec (parser->current_monitor_spec, error))
return;
finish_monitor_spec (parser);
parser->state = parser->monitor_spec_parent_state;
return;
}
case STATE_MONITOR_MODE_WIDTH:
case STATE_MONITOR_MODE_HEIGHT:
case STATE_MONITOR_MODE_RATE:
case STATE_MONITOR_MODE_FLAG:
{
parser->state = STATE_MONITOR_MODE;
return;
}
case STATE_MONITOR_MODE:
{
g_assert (g_str_equal (element_name, "mode"));
if (!meta_verify_monitor_mode_spec (parser->current_monitor_mode_spec,
error))
return;
parser->current_monitor_config->mode_spec =
parser->current_monitor_mode_spec;
parser->current_monitor_mode_spec = NULL;
parser->state = STATE_MONITOR;
return;
}
case STATE_MONITOR_UNDERSCANNING:
{
g_assert (g_str_equal (element_name, "underscanning"));
parser->state = STATE_MONITOR;
return;
}
case STATE_MONITOR:
{
MetaLogicalMonitorConfig *logical_monitor_config;
g_assert (g_str_equal (element_name, "monitor"));
if (!meta_verify_monitor_config (parser->current_monitor_config, error))
return;
logical_monitor_config = parser->current_logical_monitor_config;
logical_monitor_config->monitor_configs =
g_list_append (logical_monitor_config->monitor_configs,
parser->current_monitor_config);
parser->current_monitor_config = NULL;
parser->state = STATE_LOGICAL_MONITOR;
return;
}
case STATE_LOGICAL_MONITOR:
{
MetaLogicalMonitorConfig *logical_monitor_config =
parser->current_logical_monitor_config;
g_assert (g_str_equal (element_name, "logicalmonitor"));
if (parser->current_was_migrated)
logical_monitor_config->scale = -1;
else if (logical_monitor_config->scale == 0)
logical_monitor_config->scale = 1;
parser->current_logical_monitor_configs =
g_list_append (parser->current_logical_monitor_configs,
logical_monitor_config);
parser->current_logical_monitor_config = NULL;
parser->state = STATE_CONFIGURATION;
return;
}
case STATE_MIGRATED:
{
g_assert (g_str_equal (element_name, "migrated"));
parser->state = STATE_CONFIGURATION;
return;
}
case STATE_DISABLED:
{
g_assert (g_str_equal (element_name, "disabled"));
parser->state = STATE_CONFIGURATION;
return;
}
case STATE_CONFIGURATION:
{
MetaMonitorConfigStore *store = parser->config_store;
MetaMonitorsConfig *config;
GList *l;
MetaLogicalMonitorLayoutMode layout_mode;
MetaMonitorsConfigFlag config_flags = META_MONITORS_CONFIG_FLAG_NONE;
g_assert (g_str_equal (element_name, "configuration"));
if (parser->current_was_migrated)
layout_mode = META_LOGICAL_MONITOR_LAYOUT_MODE_PHYSICAL;
else
layout_mode =
meta_monitor_manager_get_default_layout_mode (store->monitor_manager);
for (l = parser->current_logical_monitor_configs; l; l = l->next)
{
MetaLogicalMonitorConfig *logical_monitor_config = l->data;
if (!derive_logical_monitor_layout (logical_monitor_config,
layout_mode,
error))
return;
if (!meta_verify_logical_monitor_config (logical_monitor_config,
layout_mode,
store->monitor_manager,
error))
return;
}
if (parser->current_was_migrated)
config_flags |= META_MONITORS_CONFIG_FLAG_MIGRATED;
config_flags |= parser->extra_config_flags;
config =
meta_monitors_config_new_full (parser->current_logical_monitor_configs,
parser->current_disabled_monitor_specs,
layout_mode,
config_flags);
parser->current_logical_monitor_configs = NULL;
parser->current_disabled_monitor_specs = NULL;
if (!meta_verify_monitors_config (config, store->monitor_manager,
error))
{
g_object_unref (config);
return;
}
g_hash_table_replace (parser->pending_configs,
config->key, config);
parser->state = STATE_MONITORS;
return;
}
case STATE_STORE:
g_assert (g_str_equal (element_name, "store"));
if (parser->pending_store == -1)
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
"Got an empty store");
return;
}
if (g_list_find (parser->stores,
GINT_TO_POINTER (parser->pending_store)))
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
"Multiple identical stores in policy");
return;
}
parser->stores =
g_list_append (parser->stores,
GINT_TO_POINTER (parser->pending_store));
parser->pending_store = -1;
parser->state = STATE_STORES;
return;
case STATE_STORES:
g_assert (g_str_equal (element_name, "stores"));
if (parser->config_store->has_stores_policy)
{
g_warning ("Ignoring stores policy from '%s', "
"it has already been configured",
g_file_peek_path (parser->file));
g_clear_pointer (&parser->stores, g_list_free);
}
else
{
parser->config_store->stores_policy =
g_steal_pointer (&parser->stores);
parser->config_store->has_stores_policy = TRUE;
}
parser->state = STATE_POLICY;
return;
case STATE_DBUS:
if (!parser->config_store->has_dbus_policy)
{
parser->config_store->has_dbus_policy = TRUE;
parser->config_store->policy.enable_dbus = parser->enable_dbus;
parser->enable_dbus_set = FALSE;
}
else
{
g_warning ("Policy for monitor configuration via D-Bus "
"has already been set, ignoring policy from '%s'",
g_file_get_path (parser->file));
}
parser->state = STATE_POLICY;
return;
case STATE_POLICY:
g_assert (g_str_equal (element_name, "policy"));
parser->state = STATE_MONITORS;
return;
case STATE_UNKNOWN:
{
parser->unknown_level--;
if (parser->unknown_level == 0)
{
g_assert (parser->unknown_state_root >= 0);
parser->state = parser->unknown_state_root;
parser->unknown_state_root = -1;
}
return;
}
case STATE_MONITORS:
{
g_assert (g_str_equal (element_name, "monitors"));
parser->state = STATE_INITIAL;
return;
}
case STATE_INITIAL:
{
g_assert_not_reached ();
}
}
}
static gboolean
read_int (const char *text,
gsize text_len,
gint *out_value,
GError **error)
{
char buf[64];
int64_t value;
char *end;
strncpy (buf, text, text_len);
buf[MIN (63, text_len)] = 0;
value = g_ascii_strtoll (buf, &end, 10);
if (*end || value < 0 || value > G_MAXINT16)
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
"Expected a number, got %s", buf);
return FALSE;
}
else
{
*out_value = value;
return TRUE;
}
}
static gboolean
read_float (const char *text,
gsize text_len,
float *out_value,
GError **error)
{
char buf[64];
float value;
char *end;
strncpy (buf, text, text_len);
buf[MIN (63, text_len)] = 0;
value = g_ascii_strtod (buf, &end);
if (*end)
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
"Expected a number, got %s", buf);
return FALSE;
}
else
{
*out_value = value;
return TRUE;
}
}
static gboolean
read_bool (const char *text,
gsize text_len,
gboolean *out_value,
GError **error)
{
if (text_equals (text, text_len, "no"))
{
*out_value = FALSE;
return TRUE;
}
else if (text_equals (text, text_len, "yes"))
{
*out_value = TRUE;
return TRUE;
}
else
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
"Invalid boolean value '%.*s'", (int) text_len, text);
return FALSE;
}
}
static gboolean
is_all_whitespace (const char *text,
gsize text_len)
{
gsize i;
for (i = 0; i < text_len; i++)
if (!g_ascii_isspace (text[i]))
return FALSE;
return TRUE;
}
static void
handle_text (GMarkupParseContext *context,
const gchar *text,
gsize text_len,
gpointer user_data,
GError **error)
{
ConfigParser *parser = user_data;
switch (parser->state)
{
case STATE_UNKNOWN:
return;
case STATE_INITIAL:
case STATE_MONITORS:
case STATE_CONFIGURATION:
case STATE_MIGRATED:
case STATE_LOGICAL_MONITOR:
case STATE_MONITOR:
case STATE_MONITOR_SPEC:
case STATE_MONITOR_MODE:
case STATE_TRANSFORM:
case STATE_DISABLED:
case STATE_POLICY:
case STATE_STORES:
{
if (!is_all_whitespace (text, text_len))
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
"Unexpected content at this point");
return;
}
case STATE_MONITOR_SPEC_CONNECTOR:
{
parser->current_monitor_spec->connector = g_strndup (text, text_len);
return;
}
case STATE_MONITOR_SPEC_VENDOR:
{
parser->current_monitor_spec->vendor = g_strndup (text, text_len);
return;
}
case STATE_MONITOR_SPEC_PRODUCT:
{
parser->current_monitor_spec->product = g_strndup (text, text_len);
return;
}
case STATE_MONITOR_SPEC_SERIAL:
{
parser->current_monitor_spec->serial = g_strndup (text, text_len);
return;
}
case STATE_LOGICAL_MONITOR_X:
{
read_int (text, text_len,
&parser->current_logical_monitor_config->layout.x, error);
return;
}
case STATE_LOGICAL_MONITOR_Y:
{
read_int (text, text_len,
&parser->current_logical_monitor_config->layout.y, error);
return;
}
case STATE_LOGICAL_MONITOR_SCALE:
{
if (!read_float (text, text_len,
&parser->current_logical_monitor_config->scale, error))
return;
if (parser->current_logical_monitor_config->scale <= 0.0)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Logical monitor scale '%g' invalid",
parser->current_logical_monitor_config->scale);
return;
}
return;
}
case STATE_LOGICAL_MONITOR_PRIMARY:
{
read_bool (text, text_len,
&parser->current_logical_monitor_config->is_primary,
error);
return;
}
case STATE_LOGICAL_MONITOR_PRESENTATION:
{
read_bool (text, text_len,
&parser->current_logical_monitor_config->is_presentation,
error);
return;
}
case STATE_TRANSFORM_ROTATION:
{
if (text_equals (text, text_len, "normal"))
parser->current_transform = META_MONITOR_TRANSFORM_NORMAL;
else if (text_equals (text, text_len, "left"))
parser->current_transform = META_MONITOR_TRANSFORM_90;
else if (text_equals (text, text_len, "upside_down"))
parser->current_transform = META_MONITOR_TRANSFORM_180;
else if (text_equals (text, text_len, "right"))
parser->current_transform = META_MONITOR_TRANSFORM_270;
else
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
"Invalid rotation type %.*s", (int)text_len, text);
return;
}
case STATE_TRANSFORM_FLIPPED:
{
read_bool (text, text_len,
&parser->current_transform_flipped,
error);
return;
}
case STATE_MONITOR_MODE_WIDTH:
{
read_int (text, text_len,
&parser->current_monitor_mode_spec->width,
error);
return;
}
case STATE_MONITOR_MODE_HEIGHT:
{
read_int (text, text_len,
&parser->current_monitor_mode_spec->height,
error);
return;
}
case STATE_MONITOR_MODE_RATE:
{
read_float (text, text_len,
&parser->current_monitor_mode_spec->refresh_rate,
error);
return;
}
case STATE_MONITOR_MODE_FLAG:
{
if (text_equals (text, text_len, "interlace"))
{
parser->current_monitor_mode_spec->flags |=
META_CRTC_MODE_FLAG_INTERLACE;
}
else
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
"Invalid mode flag %.*s", (int) text_len, text);
}
return;
}
case STATE_MONITOR_UNDERSCANNING:
{
read_bool (text, text_len,
&parser->current_monitor_config->enable_underscanning,
error);
return;
}
case STATE_STORE:
{
MetaConfigStore store;
if (parser->pending_store != -1)
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
"Multiple store strings");
return;
}
if (text_equals (text, text_len, "system"))
{
store = META_CONFIG_STORE_SYSTEM;
}
else if (text_equals (text, text_len, "user"))
{
store = META_CONFIG_STORE_USER;
}
else
{
g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
"Invalid store %.*s", (int) text_len, text);
return;
}
parser->pending_store = store;
return;
}
case STATE_DBUS:
{
parser->enable_dbus_set = TRUE;
read_bool (text, text_len,
&parser->enable_dbus,
error);
return;
}
}
}
static const GMarkupParser config_parser = {
.start_element = handle_start_element,
.end_element = handle_end_element,
.text = handle_text
};
static gboolean
read_config_file (MetaMonitorConfigStore *config_store,
GFile *file,
MetaMonitorsConfigFlag extra_config_flags,
GHashTable **out_configs,
GError **error)
{
char *buffer;
gsize size;
ConfigParser parser;
GMarkupParseContext *parse_context;
if (!g_file_load_contents (file, NULL, &buffer, &size, NULL, error))
return FALSE;
parser = (ConfigParser) {
.state = STATE_INITIAL,
.file = file,
.config_store = config_store,
.pending_configs = g_hash_table_new_full (meta_monitors_config_key_hash,
meta_monitors_config_key_equal,
NULL,
g_object_unref),
.extra_config_flags = extra_config_flags,
.unknown_state_root = -1,
.pending_store = -1,
};
parse_context = g_markup_parse_context_new (&config_parser,
G_MARKUP_TREAT_CDATA_AS_TEXT |
G_MARKUP_PREFIX_ERROR_POSITION,
&parser, NULL);
if (!g_markup_parse_context_parse (parse_context, buffer, size, error))
{
g_list_free_full (parser.current_logical_monitor_configs,
(GDestroyNotify) meta_logical_monitor_config_free);
g_clear_pointer (&parser.current_monitor_spec,
meta_monitor_spec_free);
g_free (parser.current_monitor_mode_spec);
g_clear_pointer (&parser.current_monitor_config,
meta_monitor_config_free);
g_clear_pointer (&parser.current_logical_monitor_config,
meta_logical_monitor_config_free);
g_list_free (parser.stores);
g_hash_table_unref (parser.pending_configs);
return FALSE;
}
*out_configs = g_steal_pointer (&parser.pending_configs);
g_markup_parse_context_free (parse_context);
g_free (buffer);
return TRUE;
}
MetaMonitorsConfig *
meta_monitor_config_store_lookup (MetaMonitorConfigStore *config_store,
MetaMonitorsConfigKey *key)
{
return META_MONITORS_CONFIG (g_hash_table_lookup (config_store->configs,
key));
}
static void
append_monitor_spec (GString *buffer,
MetaMonitorSpec *monitor_spec,
const char *indentation)
{
char *escaped;
g_string_append_printf (buffer, "%s<monitorspec>\n", indentation);
escaped = g_markup_escape_text (monitor_spec->connector, -1);
g_string_append_printf (buffer, "%s <connector>%s</connector>\n",
indentation,
escaped);
g_free (escaped);
escaped = g_markup_escape_text (monitor_spec->vendor, -1);
g_string_append_printf (buffer, "%s <vendor>%s</vendor>\n",
indentation,
escaped);
g_free (escaped);
escaped = g_markup_escape_text (monitor_spec->product, -1);
g_string_append_printf (buffer, "%s <product>%s</product>\n",
indentation,
escaped);
g_free (escaped);
escaped = g_markup_escape_text (monitor_spec->serial, -1);
g_string_append_printf (buffer, "%s <serial>%s</serial>\n",
indentation,
escaped);
g_free (escaped);
g_string_append_printf (buffer, "%s</monitorspec>\n", indentation);
}
static void
append_monitors (GString *buffer,
GList *monitor_configs)
{
GList *l;
for (l = monitor_configs; l; l = l->next)
{
MetaMonitorConfig *monitor_config = l->data;
char rate_str[G_ASCII_DTOSTR_BUF_SIZE];
g_ascii_dtostr (rate_str, sizeof (rate_str),
monitor_config->mode_spec->refresh_rate);
g_string_append (buffer, " <monitor>\n");
append_monitor_spec (buffer, monitor_config->monitor_spec, " ");
g_string_append (buffer, " <mode>\n");
g_string_append_printf (buffer, " <width>%d</width>\n",
monitor_config->mode_spec->width);
g_string_append_printf (buffer, " <height>%d</height>\n",
monitor_config->mode_spec->height);
g_string_append_printf (buffer, " <rate>%s</rate>\n",
rate_str);
if (monitor_config->mode_spec->flags & META_CRTC_MODE_FLAG_INTERLACE)
g_string_append_printf (buffer, " <flag>interlace</flag>\n");
g_string_append (buffer, " </mode>\n");
if (monitor_config->enable_underscanning)
g_string_append (buffer, " <underscanning>yes</underscanning>\n");
g_string_append (buffer, " </monitor>\n");
}
}
static const char *
bool_to_string (gboolean value)
{
return value ? "yes" : "no";
}
static void
append_transform (GString *buffer,
MetaMonitorTransform transform)
{
const char *rotation = NULL;
gboolean flipped = FALSE;
switch (transform)
{
case META_MONITOR_TRANSFORM_NORMAL:
return;
case META_MONITOR_TRANSFORM_90:
rotation = "left";
break;
case META_MONITOR_TRANSFORM_180:
rotation = "upside_down";
break;
case META_MONITOR_TRANSFORM_270:
rotation = "right";
break;
case META_MONITOR_TRANSFORM_FLIPPED:
rotation = "normal";
flipped = TRUE;
break;
case META_MONITOR_TRANSFORM_FLIPPED_90:
rotation = "left";
flipped = TRUE;
break;
case META_MONITOR_TRANSFORM_FLIPPED_180:
rotation = "upside_down";
flipped = TRUE;
break;
case META_MONITOR_TRANSFORM_FLIPPED_270:
rotation = "right";
flipped = TRUE;
break;
}
g_string_append (buffer, " <transform>\n");
g_string_append_printf (buffer, " <rotation>%s</rotation>\n",
rotation);
g_string_append_printf (buffer, " <flipped>%s</flipped>\n",
bool_to_string (flipped));
g_string_append (buffer, " </transform>\n");
}
static void
append_logical_monitor_xml (GString *buffer,
MetaMonitorsConfig *config,
MetaLogicalMonitorConfig *logical_monitor_config)
{
char scale_str[G_ASCII_DTOSTR_BUF_SIZE];
g_string_append (buffer, " <logicalmonitor>\n");
g_string_append_printf (buffer, " <x>%d</x>\n",
logical_monitor_config->layout.x);
g_string_append_printf (buffer, " <y>%d</y>\n",
logical_monitor_config->layout.y);
g_ascii_dtostr (scale_str, G_ASCII_DTOSTR_BUF_SIZE,
logical_monitor_config->scale);
if ((config->flags & META_MONITORS_CONFIG_FLAG_MIGRATED) == 0)
g_string_append_printf (buffer, " <scale>%s</scale>\n",
scale_str);
if (logical_monitor_config->is_primary)
g_string_append (buffer, " <primary>yes</primary>\n");
if (logical_monitor_config->is_presentation)
g_string_append (buffer, " <presentation>yes</presentation>\n");
append_transform (buffer, logical_monitor_config->transform);
append_monitors (buffer, logical_monitor_config->monitor_configs);
g_string_append (buffer, " </logicalmonitor>\n");
}
static GString *
generate_config_xml (MetaMonitorConfigStore *config_store)
{
GString *buffer;
GHashTableIter iter;
MetaMonitorsConfig *config;
buffer = g_string_new ("");
g_string_append_printf (buffer, "<monitors version=\"%d\">\n",
MONITORS_CONFIG_XML_FORMAT_VERSION);
g_hash_table_iter_init (&iter, config_store->configs);
while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &config))
{
GList *l;
if (config->flags & META_MONITORS_CONFIG_FLAG_SYSTEM_CONFIG)
continue;
g_string_append (buffer, " <configuration>\n");
if (config->flags & META_MONITORS_CONFIG_FLAG_MIGRATED)
g_string_append (buffer, " <migrated/>\n");
for (l = config->logical_monitor_configs; l; l = l->next)
{
MetaLogicalMonitorConfig *logical_monitor_config = l->data;
append_logical_monitor_xml (buffer, config, logical_monitor_config);
}
if (config->disabled_monitor_specs)
{
g_string_append (buffer, " <disabled>\n");
for (l = config->disabled_monitor_specs; l; l = l->next)
{
MetaMonitorSpec *monitor_spec = l->data;
append_monitor_spec (buffer, monitor_spec, " ");
}
g_string_append (buffer, " </disabled>\n");
}
g_string_append (buffer, " </configuration>\n");
}
g_string_append (buffer, "</monitors>\n");
return buffer;
}
typedef struct _SaveData
{
MetaMonitorConfigStore *config_store;
GString *buffer;
} SaveData;
static void
saved_cb (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
SaveData *data = user_data;
GError *error = NULL;
if (!g_file_replace_contents_finish (G_FILE (object), result, NULL, &error))
{
if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
{
g_warning ("Saving monitor configuration failed: %s", error->message);
g_clear_object (&data->config_store->save_cancellable);
}
g_error_free (error);
}
else
{
g_clear_object (&data->config_store->save_cancellable);
}
g_clear_object (&data->config_store);
g_string_free (data->buffer, TRUE);
g_free (data);
}
static void
meta_monitor_config_store_save_sync (MetaMonitorConfigStore *config_store)
{
GError *error = NULL;
GFile *file;
GString *buffer;
if (config_store->custom_write_file)
file = config_store->custom_write_file;
else
file = config_store->user_file;
buffer = generate_config_xml (config_store);
if (!g_file_replace_contents (file,
buffer->str, buffer->len,
NULL,
FALSE,
G_FILE_CREATE_REPLACE_DESTINATION,
NULL,
NULL,
&error))
{
g_warning ("Saving monitor configuration failed: %s",
error->message);
g_error_free (error);
}
g_string_free (buffer, TRUE);
}
static void
meta_monitor_config_store_save (MetaMonitorConfigStore *config_store)
{
GString *buffer;
SaveData *data;
if (config_store->save_cancellable)
{
g_cancellable_cancel (config_store->save_cancellable);
g_clear_object (&config_store->save_cancellable);
}
/*
* Custom write file is only ever used by the test suite, and the test suite
* will want to have be able to read back the content immediately, so for
* custom write files, do the content replacement synchronously.
*/
if (config_store->custom_write_file)
{
meta_monitor_config_store_save_sync (config_store);
return;
}
if (config_store->has_stores_policy &&
!g_list_find (config_store->stores_policy,
GINT_TO_POINTER (META_CONFIG_STORE_USER)))
return;
config_store->save_cancellable = g_cancellable_new ();
buffer = generate_config_xml (config_store);
data = g_new0 (SaveData, 1);
*data = (SaveData) {
.config_store = g_object_ref (config_store),
.buffer = buffer
};
g_file_replace_contents_async (config_store->user_file,
buffer->str, buffer->len,
NULL,
TRUE,
G_FILE_CREATE_REPLACE_DESTINATION,
config_store->save_cancellable,
saved_cb, data);
}
static void
maybe_save_configs (MetaMonitorConfigStore *config_store)
{
/*
* If a custom file is used, it means we are run by the test suite. When this
* is done, avoid replacing the user configuration file with test data,
* except if a custom write file is set as well.
*/
if (!config_store->custom_read_file || config_store->custom_write_file)
meta_monitor_config_store_save (config_store);
}
static gboolean
is_system_config (MetaMonitorsConfig *config)
{
return !!(config->flags & META_MONITORS_CONFIG_FLAG_SYSTEM_CONFIG);
}
void
meta_monitor_config_store_add (MetaMonitorConfigStore *config_store,
MetaMonitorsConfig *config)
{
g_hash_table_replace (config_store->configs,
config->key, g_object_ref (config));
if (!is_system_config (config))
maybe_save_configs (config_store);
}
void
meta_monitor_config_store_remove (MetaMonitorConfigStore *config_store,
MetaMonitorsConfig *config)
{
g_hash_table_remove (config_store->configs, config->key);
if (!is_system_config (config))
maybe_save_configs (config_store);
}
gboolean
meta_monitor_config_store_set_custom (MetaMonitorConfigStore *config_store,
const char *read_path,
const char *write_path,
MetaMonitorsConfigFlag config_flags,
GError **error)
{
GHashTable *new_configs = NULL;
g_clear_object (&config_store->custom_read_file);
g_clear_object (&config_store->custom_write_file);
config_store->custom_read_file = g_file_new_for_path (read_path);
if (write_path)
config_store->custom_write_file = g_file_new_for_path (write_path);
g_clear_pointer (&config_store->stores_policy, g_list_free);
config_store->has_stores_policy = FALSE;
config_store->policy.enable_dbus = TRUE;
config_store->has_dbus_policy = FALSE;
if (!read_config_file (config_store,
config_store->custom_read_file,
config_flags,
&new_configs,
error))
return FALSE;
g_clear_pointer (&config_store->configs, g_hash_table_unref);
config_store->configs = g_steal_pointer (&new_configs);
return TRUE;
}
int
meta_monitor_config_store_get_config_count (MetaMonitorConfigStore *config_store)
{
return (int) g_hash_table_size (config_store->configs);
}
GList *
meta_monitor_config_store_get_stores_policy (MetaMonitorConfigStore *config_store)
{
return config_store->stores_policy;
}
MetaMonitorManager *
meta_monitor_config_store_get_monitor_manager (MetaMonitorConfigStore *config_store)
{
return config_store->monitor_manager;
}
MetaMonitorConfigStore *
meta_monitor_config_store_new (MetaMonitorManager *monitor_manager)
{
return g_object_new (META_TYPE_MONITOR_CONFIG_STORE,
"monitor-manager", monitor_manager,
NULL);
}
static void
meta_monitor_config_store_constructed (GObject *object)
{
MetaMonitorConfigStore *config_store = META_MONITOR_CONFIG_STORE (object);
meta_monitor_config_store_reset (config_store);
G_OBJECT_CLASS (meta_monitor_config_store_parent_class)->constructed (object);
}
static void
meta_monitor_config_store_dispose (GObject *object)
{
MetaMonitorConfigStore *config_store = META_MONITOR_CONFIG_STORE (object);
if (config_store->save_cancellable)
{
g_cancellable_cancel (config_store->save_cancellable);
g_clear_object (&config_store->save_cancellable);
meta_monitor_config_store_save_sync (config_store);
}
g_clear_pointer (&config_store->configs, g_hash_table_destroy);
g_clear_object (&config_store->user_file);
g_clear_object (&config_store->custom_read_file);
g_clear_object (&config_store->custom_write_file);
g_clear_pointer (&config_store->stores_policy, g_list_free);
G_OBJECT_CLASS (meta_monitor_config_store_parent_class)->dispose (object);
}
static void
meta_monitor_config_store_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
MetaMonitorConfigStore *config_store = META_MONITOR_CONFIG_STORE (object);
switch (prop_id)
{
case PROP_MONITOR_MANAGER:
g_value_set_object (value, &config_store->monitor_manager);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
meta_monitor_config_store_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
MetaMonitorConfigStore *config_store = META_MONITOR_CONFIG_STORE (object);
switch (prop_id)
{
case PROP_MONITOR_MANAGER:
config_store->monitor_manager = g_value_get_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
meta_monitor_config_store_init (MetaMonitorConfigStore *config_store)
{
config_store->configs = g_hash_table_new_full (meta_monitors_config_key_hash,
meta_monitors_config_key_equal,
NULL,
g_object_unref);
config_store->policy.enable_dbus = TRUE;
}
static void
meta_monitor_config_store_class_init (MetaMonitorConfigStoreClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->constructed = meta_monitor_config_store_constructed;
object_class->dispose = meta_monitor_config_store_dispose;
object_class->get_property = meta_monitor_config_store_get_property;
object_class->set_property = meta_monitor_config_store_set_property;
obj_props[PROP_MONITOR_MANAGER] =
g_param_spec_object ("monitor-manager",
"MetaMonitorManager",
"MetaMonitorManager",
META_TYPE_MONITOR_MANAGER,
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS |
G_PARAM_CONSTRUCT_ONLY);
g_object_class_install_properties (object_class, PROP_LAST, obj_props);
}
static void
replace_configs (MetaMonitorConfigStore *config_store,
GHashTable *configs)
{
GHashTableIter iter;
MetaMonitorsConfigKey *key;
MetaMonitorsConfig *config;
g_hash_table_iter_init (&iter, configs);
while (g_hash_table_iter_next (&iter,
(gpointer *) &key,
(gpointer *) &config))
{
g_hash_table_iter_steal (&iter);
g_hash_table_replace (config_store->configs, key, config);
}
}
void
meta_monitor_config_store_reset (MetaMonitorConfigStore *config_store)
{
g_autoptr (GHashTable) system_configs = NULL;
g_autoptr (GHashTable) user_configs = NULL;
const char * const *system_dirs;
char *user_file_path;
GError *error = NULL;
g_clear_object (&config_store->user_file);
g_clear_object (&config_store->custom_read_file);
g_clear_object (&config_store->custom_write_file);
g_hash_table_remove_all (config_store->configs);
for (system_dirs = g_get_system_config_dirs ();
system_dirs && *system_dirs;
system_dirs++)
{
g_autofree char *system_file_path = NULL;
system_file_path = g_build_filename (*system_dirs, "monitors.xml", NULL);
if (g_file_test (system_file_path, G_FILE_TEST_EXISTS))
{
g_autoptr (GFile) system_file = NULL;
system_file = g_file_new_for_path (system_file_path);
if (!read_config_file (config_store,
system_file,
META_MONITORS_CONFIG_FLAG_SYSTEM_CONFIG,
&system_configs,
&error))
{
if (g_error_matches (error,
META_MONITOR_CONFIG_STORE_ERROR,
META_MONITOR_CONFIG_STORE_ERROR_NEEDS_MIGRATION))
g_warning ("System monitor configuration file (%s) is "
"incompatible; ask your administrator to migrate "
"the system monitor configuration.",
system_file_path);
else
g_warning ("Failed to read monitors config file '%s': %s",
system_file_path, error->message);
g_clear_error (&error);
}
}
}
user_file_path = g_build_filename (g_get_user_config_dir (),
"monitors.xml",
NULL);
config_store->user_file = g_file_new_for_path (user_file_path);
if (g_file_test (user_file_path, G_FILE_TEST_EXISTS))
{
if (!read_config_file (config_store,
config_store->user_file,
META_MONITORS_CONFIG_FLAG_NONE,
&user_configs,
&error))
{
if (error->domain == META_MONITOR_CONFIG_STORE_ERROR &&
error->code == META_MONITOR_CONFIG_STORE_ERROR_NEEDS_MIGRATION)
{
g_clear_error (&error);
if (!meta_migrate_old_user_monitors_config (config_store, &error))
{
g_warning ("Failed to migrate old monitors config file: %s",
error->message);
g_error_free (error);
}
}
else
{
g_warning ("Failed to read monitors config file '%s': %s",
user_file_path, error->message);
g_error_free (error);
}
}
}
if (config_store->has_stores_policy)
{
GList *l;
for (l = g_list_last (config_store->stores_policy); l; l = l->prev)
{
MetaConfigStore store = GPOINTER_TO_INT (l->data);
switch (store)
{
case META_CONFIG_STORE_SYSTEM:
if (system_configs)
replace_configs (config_store, system_configs);
break;
case META_CONFIG_STORE_USER:
if (user_configs)
replace_configs (config_store, user_configs);
}
}
}
else
{
if (system_configs)
replace_configs (config_store, system_configs);
if (user_configs)
replace_configs (config_store, user_configs);
}
g_free (user_file_path);
}
const MetaMonitorConfigPolicy *
meta_monitor_config_store_get_policy (MetaMonitorConfigStore *config_store)
{
return &config_store->policy;
}
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