diff options
Diffstat (limited to 'plugins/xrandr/msd-xrandr-manager.c')
| -rw-r--r-- | plugins/xrandr/msd-xrandr-manager.c | 2584 |
1 files changed, 2584 insertions, 0 deletions
diff --git a/plugins/xrandr/msd-xrandr-manager.c b/plugins/xrandr/msd-xrandr-manager.c new file mode 100644 index 0000000..dc00be1 --- /dev/null +++ b/plugins/xrandr/msd-xrandr-manager.c @@ -0,0 +1,2584 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- + * + * Copyright (C) 2007 William Jon McCann <[email protected]> + * Copyright (C) 2007, 2008 Red Hat, Inc + * + * 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 <sys/types.h> +#include <sys/wait.h> +#include <sys/stat.h> +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> +#include <string.h> +#include <errno.h> + +#include <locale.h> + +#include <glib.h> +#include <glib/gi18n.h> +#include <gdk/gdk.h> +#include <gdk/gdkx.h> +#include <gtk/gtk.h> +#include <mateconf/mateconf-client.h> +#include <dbus/dbus-glib.h> + +#define MATE_DESKTOP_USE_UNSTABLE_API + +#include <libmateui/mate-rr-config.h> +#include <libmateui/mate-rr.h> +#include <libmateui/mate-rr-labeler.h> + +#ifdef HAVE_LIBMATENOTIFY +#include <libmatenotify/notify.h> +#endif + +#include "mate-settings-profile.h" +#include "msd-xrandr-manager.h" + +#ifndef HOST_NAME_MAX +#define HOST_NAME_MAX 255 +#endif + +#define MSD_XRANDR_MANAGER_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), MSD_TYPE_XRANDR_MANAGER, MsdXrandrManagerPrivate)) + +#define CONF_DIR "/apps/mate_settings_daemon/xrandr" +#define CONF_KEY_SHOW_NOTIFICATION_ICON (CONF_DIR "/show_notification_icon") +#define CONF_KEY_TURN_ON_EXTERNAL_MONITORS_AT_STARTUP (CONF_DIR "/turn_on_external_monitors_at_startup") +#define CONF_KEY_TURN_ON_LAPTOP_MONITOR_AT_STARTUP (CONF_DIR "/turn_on_laptop_monitor_at_startup") +#define CONF_KEY_DEFAULT_CONFIGURATION_FILE (CONF_DIR "/default_configuration_file") + +#define VIDEO_KEYSYM "XF86Display" +#define ROTATE_KEYSYM "XF86RotateWindows" + +/* Number of seconds that the confirmation dialog will last before it resets the + * RANDR configuration to its old state. + */ +#define CONFIRMATION_DIALOG_SECONDS 30 + +/* name of the icon files (msd-xrandr.svg, etc.) */ +#define MSD_XRANDR_ICON_NAME "msd-xrandr" + +/* executable of the control center's display configuration capplet */ +#define MSD_XRANDR_DISPLAY_CAPPLET "mate-control-center display" + +#define MSD_DBUS_PATH "/org/mate/SettingsDaemon" +#define MSD_DBUS_NAME "org.mate.SettingsDaemon" +#define MSD_XRANDR_DBUS_PATH MSD_DBUS_PATH "/XRANDR" +#define MSD_XRANDR_DBUS_NAME MSD_DBUS_NAME ".XRANDR" + +struct MsdXrandrManagerPrivate +{ + DBusGConnection *dbus_connection; + + /* Key code of the XF86Display key (Fn-F7 on Thinkpads, Fn-F4 on HP machines, etc.) */ + guint switch_video_mode_keycode; + + /* Key code of the XF86RotateWindows key (present on some tablets) */ + guint rotate_windows_keycode; + + MateRRScreen *rw_screen; + gboolean running; + + GtkStatusIcon *status_icon; + GtkWidget *popup_menu; + MateRRConfig *configuration; + MateRRLabeler *labeler; + MateConfClient *client; + int notify_id; + + /* fn-F7 status */ + int current_fn_f7_config; /* -1 if no configs */ + MateRRConfig **fn_f7_configs; /* NULL terminated, NULL if there are no configs */ + + /* Last time at which we got a "screen got reconfigured" event; see on_randr_event() */ + guint32 last_config_timestamp; +}; + +static const MateRRRotation possible_rotations[] = { + MATE_RR_ROTATION_0, + MATE_RR_ROTATION_90, + MATE_RR_ROTATION_180, + MATE_RR_ROTATION_270 + /* We don't allow REFLECT_X or REFLECT_Y for now, as mate-display-properties doesn't allow them, either */ +}; + +static void msd_xrandr_manager_class_init (MsdXrandrManagerClass *klass); +static void msd_xrandr_manager_init (MsdXrandrManager *xrandr_manager); +static void msd_xrandr_manager_finalize (GObject *object); + +static void error_message (MsdXrandrManager *mgr, const char *primary_text, GError *error_to_display, const char *secondary_text); + +static void status_icon_popup_menu (MsdXrandrManager *manager, guint button, guint32 timestamp); +static void run_display_capplet (GtkWidget *widget); +static void get_allowed_rotations_for_output (MateRRConfig *config, + MateRRScreen *rr_screen, + MateOutputInfo *output, + int *out_num_rotations, + MateRRRotation *out_rotations); + +G_DEFINE_TYPE (MsdXrandrManager, msd_xrandr_manager, G_TYPE_OBJECT) + +static gpointer manager_object = NULL; + +static FILE *log_file; + +static void +log_open (void) +{ + char *toggle_filename; + char *log_filename; + struct stat st; + + if (log_file) + return; + + toggle_filename = g_build_filename (g_get_home_dir (), "msd-debug-randr", NULL); + log_filename = g_build_filename (g_get_home_dir (), "msd-debug-randr.log", NULL); + + if (stat (toggle_filename, &st) != 0) + goto out; + + log_file = fopen (log_filename, "a"); + + if (log_file && ftell (log_file) == 0) + fprintf (log_file, "To keep this log from being created, please rm ~/msd-debug-randr\n"); + +out: + g_free (toggle_filename); + g_free (log_filename); +} + +static void +log_close (void) +{ + if (log_file) { + fclose (log_file); + log_file = NULL; + } +} + +static void +log_msg (const char *format, ...) +{ + if (log_file) { + va_list args; + + va_start (args, format); + vfprintf (log_file, format, args); + va_end (args); + } +} + +static void +log_output (MateOutputInfo *output) +{ + log_msg (" %s: ", output->name ? output->name : "unknown"); + + if (output->connected) { + if (output->on) { + log_msg ("%dx%d@%d +%d+%d", + output->width, + output->height, + output->rate, + output->x, + output->y); + } else + log_msg ("off"); + } else + log_msg ("disconnected"); + + if (output->display_name) + log_msg (" (%s)", output->display_name); + + if (output->primary) + log_msg (" (primary output)"); + + log_msg ("\n"); +} + +static void +log_configuration (MateRRConfig *config) +{ + int i; + + log_msg (" cloned: %s\n", config->clone ? "yes" : "no"); + + for (i = 0; config->outputs[i] != NULL; i++) + log_output (config->outputs[i]); + + if (i == 0) + log_msg (" no outputs!\n"); +} + +static char +timestamp_relationship (guint32 a, guint32 b) +{ + if (a < b) + return '<'; + else if (a > b) + return '>'; + else + return '='; +} + +static void +log_screen (MateRRScreen *screen) +{ + MateRRConfig *config; + int min_w, min_h, max_w, max_h; + guint32 change_timestamp, config_timestamp; + + if (!log_file) + return; + + config = mate_rr_config_new_current (screen); + + mate_rr_screen_get_ranges (screen, &min_w, &max_w, &min_h, &max_h); + mate_rr_screen_get_timestamps (screen, &change_timestamp, &config_timestamp); + + log_msg (" Screen min(%d, %d), max(%d, %d), change=%u %c config=%u\n", + min_w, min_h, + max_w, max_h, + change_timestamp, + timestamp_relationship (change_timestamp, config_timestamp), + config_timestamp); + + log_configuration (config); + mate_rr_config_free (config); +} + +static void +log_configurations (MateRRConfig **configs) +{ + int i; + + if (!configs) { + log_msg (" No configurations\n"); + return; + } + + for (i = 0; configs[i]; i++) { + log_msg (" Configuration %d\n", i); + log_configuration (configs[i]); + } +} + +static void +show_timestamps_dialog (MsdXrandrManager *manager, const char *msg) +{ +#if 1 + return; +#else + struct MsdXrandrManagerPrivate *priv = manager->priv; + GtkWidget *dialog; + guint32 change_timestamp, config_timestamp; + static int serial; + + mate_rr_screen_get_timestamps (priv->rw_screen, &change_timestamp, &config_timestamp); + + dialog = gtk_message_dialog_new (NULL, + 0, + GTK_MESSAGE_INFO, + GTK_BUTTONS_CLOSE, + "RANDR timestamps (%d):\n%s\nchange: %u\nconfig: %u", + serial++, + msg, + change_timestamp, + config_timestamp); + g_signal_connect (dialog, "response", + G_CALLBACK (gtk_widget_destroy), NULL); + gtk_widget_show (dialog); +#endif +} + +/* This function centralizes the use of mate_rr_config_apply_from_filename_with_time(). + * + * Optionally filters out MATE_RR_ERROR_NO_MATCHING_CONFIG from + * mate_rr_config_apply_from_filename_with_time(), since that is not usually an error. + */ +static gboolean +apply_configuration_from_filename (MsdXrandrManager *manager, + const char *filename, + gboolean no_matching_config_is_an_error, + guint32 timestamp, + GError **error) +{ + struct MsdXrandrManagerPrivate *priv = manager->priv; + GError *my_error; + gboolean success; + char *str; + + str = g_strdup_printf ("Applying %s with timestamp %d", filename, timestamp); + show_timestamps_dialog (manager, str); + g_free (str); + + my_error = NULL; + success = mate_rr_config_apply_from_filename_with_time (priv->rw_screen, filename, timestamp, &my_error); + if (success) + return TRUE; + + if (g_error_matches (my_error, MATE_RR_ERROR, MATE_RR_ERROR_NO_MATCHING_CONFIG)) { + if (no_matching_config_is_an_error) + goto fail; + + /* This is not an error; the user probably changed his monitors + * and so they don't match any of the stored configurations. + */ + g_error_free (my_error); + return TRUE; + } + +fail: + g_propagate_error (error, my_error); + return FALSE; +} + +/* This function centralizes the use of mate_rr_config_apply_with_time(). + * + * Applies a configuration and displays an error message if an error happens. + * We just return whether setting the configuration succeeded. + */ +static gboolean +apply_configuration_and_display_error (MsdXrandrManager *manager, MateRRConfig *config, guint32 timestamp) +{ + MsdXrandrManagerPrivate *priv = manager->priv; + GError *error; + gboolean success; + + error = NULL; + success = mate_rr_config_apply_with_time (config, priv->rw_screen, timestamp, &error); + if (!success) { + log_msg ("Could not switch to the following configuration (timestamp %u): %s\n", timestamp, error->message); + log_configuration (config); + error_message (manager, _("Could not switch the monitor configuration"), error, NULL); + g_error_free (error); + } + + return success; +} + +static void +restore_backup_configuration_without_messages (const char *backup_filename, const char *intended_filename) +{ + backup_filename = mate_rr_config_get_backup_filename (); + rename (backup_filename, intended_filename); +} + +static void +restore_backup_configuration (MsdXrandrManager *manager, const char *backup_filename, const char *intended_filename, guint32 timestamp) +{ + int saved_errno; + + if (rename (backup_filename, intended_filename) == 0) { + GError *error; + + error = NULL; + if (!apply_configuration_from_filename (manager, intended_filename, FALSE, timestamp, &error)) { + error_message (manager, _("Could not restore the display's configuration"), error, NULL); + + if (error) + g_error_free (error); + } + + return; + } + + saved_errno = errno; + + /* ENOENT means the original file didn't exist. That is *not* an error; + * the backup was not created because there wasn't even an original + * monitors.xml (such as on a first-time login). Note that *here* there + * is a "didn't work" monitors.xml, so we must delete that one. + */ + if (saved_errno == ENOENT) + unlink (intended_filename); + else { + char *msg; + + msg = g_strdup_printf ("Could not rename %s to %s: %s", + backup_filename, intended_filename, + g_strerror (saved_errno)); + error_message (manager, + _("Could not restore the display's configuration from a backup"), + NULL, + msg); + g_free (msg); + } + + unlink (backup_filename); +} + +typedef struct { + MsdXrandrManager *manager; + GtkWidget *dialog; + + int countdown; + int response_id; +} TimeoutDialog; + +static void +print_countdown_text (TimeoutDialog *timeout) +{ + gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (timeout->dialog), + ngettext ("The display will be reset to its previous configuration in %d second", + "The display will be reset to its previous configuration in %d seconds", + timeout->countdown), + timeout->countdown); +} + +static gboolean +timeout_cb (gpointer data) +{ + TimeoutDialog *timeout = data; + + timeout->countdown--; + + if (timeout->countdown == 0) { + timeout->response_id = GTK_RESPONSE_CANCEL; + gtk_main_quit (); + } else { + print_countdown_text (timeout); + } + + return TRUE; +} + +static void +timeout_response_cb (GtkDialog *dialog, int response_id, gpointer data) +{ + TimeoutDialog *timeout = data; + + if (response_id == GTK_RESPONSE_DELETE_EVENT) { + /* The user closed the dialog or pressed ESC, revert */ + timeout->response_id = GTK_RESPONSE_CANCEL; + } else + timeout->response_id = response_id; + + gtk_main_quit (); +} + +static gboolean +user_says_things_are_ok (MsdXrandrManager *manager, GdkWindow *parent_window) +{ + TimeoutDialog timeout; + guint timeout_id; + + timeout.manager = manager; + + timeout.dialog = gtk_message_dialog_new (NULL, + GTK_DIALOG_MODAL, + GTK_MESSAGE_QUESTION, + GTK_BUTTONS_NONE, + _("Does the display look OK?")); + + timeout.countdown = CONFIRMATION_DIALOG_SECONDS; + + print_countdown_text (&timeout); + + gtk_dialog_add_button (GTK_DIALOG (timeout.dialog), _("_Restore Previous Configuration"), GTK_RESPONSE_CANCEL); + gtk_dialog_add_button (GTK_DIALOG (timeout.dialog), _("_Keep This Configuration"), GTK_RESPONSE_ACCEPT); + gtk_dialog_set_default_response (GTK_DIALOG (timeout.dialog), GTK_RESPONSE_ACCEPT); /* ah, the optimism */ + + g_signal_connect (timeout.dialog, "response", + G_CALLBACK (timeout_response_cb), + &timeout); + + gtk_widget_realize (timeout.dialog); + + if (parent_window) + gdk_window_set_transient_for (gtk_widget_get_window (timeout.dialog), parent_window); + + gtk_widget_show_all (timeout.dialog); + /* We don't use g_timeout_add_seconds() since we actually care that the user sees "real" second ticks in the dialog */ + timeout_id = g_timeout_add (1000, + timeout_cb, + &timeout); + gtk_main (); + + gtk_widget_destroy (timeout.dialog); + g_source_remove (timeout_id); + + if (timeout.response_id == GTK_RESPONSE_ACCEPT) + return TRUE; + else + return FALSE; +} + +struct confirmation { + MsdXrandrManager *manager; + GdkWindow *parent_window; + guint32 timestamp; +}; + +static gboolean +confirm_with_user_idle_cb (gpointer data) +{ + struct confirmation *confirmation = data; + char *backup_filename; + char *intended_filename; + + backup_filename = mate_rr_config_get_backup_filename (); + intended_filename = mate_rr_config_get_intended_filename (); + + if (user_says_things_are_ok (confirmation->manager, confirmation->parent_window)) + unlink (backup_filename); + else + restore_backup_configuration (confirmation->manager, backup_filename, intended_filename, confirmation->timestamp); + + g_free (confirmation); + + return FALSE; +} + +static void +queue_confirmation_by_user (MsdXrandrManager *manager, GdkWindow *parent_window, guint32 timestamp) +{ + struct confirmation *confirmation; + + confirmation = g_new (struct confirmation, 1); + confirmation->manager = manager; + confirmation->parent_window = parent_window; + confirmation->timestamp = timestamp; + + g_idle_add (confirm_with_user_idle_cb, confirmation); +} + +static gboolean +try_to_apply_intended_configuration (MsdXrandrManager *manager, GdkWindow *parent_window, guint32 timestamp, GError **error) +{ + char *backup_filename; + char *intended_filename; + gboolean result; + + /* Try to apply the intended configuration */ + + backup_filename = mate_rr_config_get_backup_filename (); + intended_filename = mate_rr_config_get_intended_filename (); + + result = apply_configuration_from_filename (manager, intended_filename, FALSE, timestamp, error); + if (!result) { + error_message (manager, _("The selected configuration for displays could not be applied"), error ? *error : NULL, NULL); + restore_backup_configuration_without_messages (backup_filename, intended_filename); + goto out; + } else { + /* We need to return as quickly as possible, so instead of + * confirming with the user right here, we do it in an idle + * handler. The caller only expects a status for "could you + * change the RANDR configuration?", not "is the user OK with it + * as well?". + */ + queue_confirmation_by_user (manager, parent_window, timestamp); + } + +out: + g_free (backup_filename); + g_free (intended_filename); + + return result; +} + +/* DBus method for org.mate.SettingsDaemon.XRANDR ApplyConfiguration; see msd-xrandr-manager.xml for the interface definition */ +static gboolean +msd_xrandr_manager_apply_configuration (MsdXrandrManager *manager, + GError **error) +{ + return try_to_apply_intended_configuration (manager, NULL, GDK_CURRENT_TIME, error); +} + +/* DBus method for org.mate.SettingsDaemon.XRANDR_2 ApplyConfiguration; see msd-xrandr-manager.xml for the interface definition */ +static gboolean +msd_xrandr_manager_2_apply_configuration (MsdXrandrManager *manager, + gint64 parent_window_id, + gint64 timestamp, + GError **error) +{ + GdkWindow *parent_window; + gboolean result; + + if (parent_window_id != 0) + parent_window = gdk_window_foreign_new_for_display (gdk_display_get_default (), (GdkNativeWindow) parent_window_id); + else + parent_window = NULL; + + result = try_to_apply_intended_configuration (manager, parent_window, (guint32) timestamp, error); + + if (parent_window) + g_object_unref (parent_window); + + return result; +} + +/* We include this after the definition of msd_xrandr_manager_apply_configuration() so the prototype will already exist */ +#include "msd-xrandr-manager-glue.h" + +static gboolean +is_laptop (MateRRScreen *screen, MateOutputInfo *output) +{ + MateRROutput *rr_output; + + rr_output = mate_rr_screen_get_output_by_name (screen, output->name); + return mate_rr_output_is_laptop (rr_output); +} + +static gboolean +get_clone_size (MateRRScreen *screen, int *width, int *height) +{ + MateRRMode **modes = mate_rr_screen_list_clone_modes (screen); + int best_w, best_h; + int i; + + best_w = 0; + best_h = 0; + + for (i = 0; modes[i] != NULL; ++i) { + MateRRMode *mode = modes[i]; + int w, h; + + w = mate_rr_mode_get_width (mode); + h = mate_rr_mode_get_height (mode); + + if (w * h > best_w * best_h) { + best_w = w; + best_h = h; + } + } + + if (best_w > 0 && best_h > 0) { + if (width) + *width = best_w; + if (height) + *height = best_h; + + return TRUE; + } + + return FALSE; +} + +static void +print_output (MateOutputInfo *info) +{ + g_print (" Output: %s attached to %s\n", info->display_name, info->name); + g_print (" status: %s\n", info->on ? "on" : "off"); + g_print (" width: %d\n", info->width); + g_print (" height: %d\n", info->height); + g_print (" rate: %d\n", info->rate); + g_print (" position: %d %d\n", info->x, info->y); +} + +static void +print_configuration (MateRRConfig *config, const char *header) +{ + int i; + + g_print ("=== %s Configuration ===\n", header); + if (!config) { + g_print (" none\n"); + return; + } + + for (i = 0; config->outputs[i] != NULL; ++i) + print_output (config->outputs[i]); +} + +static gboolean +config_is_all_off (MateRRConfig *config) +{ + int j; + + for (j = 0; config->outputs[j] != NULL; ++j) { + if (config->outputs[j]->on) { + return FALSE; + } + } + + return TRUE; +} + +static MateRRConfig * +make_clone_setup (MateRRScreen *screen) +{ + MateRRConfig *result; + int width, height; + int i; + + if (!get_clone_size (screen, &width, &height)) + return NULL; + + result = mate_rr_config_new_current (screen); + + for (i = 0; result->outputs[i] != NULL; ++i) { + MateOutputInfo *info = result->outputs[i]; + + info->on = FALSE; + if (info->connected) { + MateRROutput *output = + mate_rr_screen_get_output_by_name (screen, info->name); + MateRRMode **modes = mate_rr_output_list_modes (output); + int j; + int best_rate = 0; + + for (j = 0; modes[j] != NULL; ++j) { + MateRRMode *mode = modes[j]; + int w, h; + + w = mate_rr_mode_get_width (mode); + h = mate_rr_mode_get_height (mode); + + if (w == width && h == height) { + int r = mate_rr_mode_get_freq (mode); + if (r > best_rate) + best_rate = r; + } + } + + if (best_rate > 0) { + info->on = TRUE; + info->width = width; + info->height = height; + info->rate = best_rate; + info->rotation = MATE_RR_ROTATION_0; + info->x = 0; + info->y = 0; + } + } + } + + if (config_is_all_off (result)) { + mate_rr_config_free (result); + result = NULL; + } + + print_configuration (result, "clone setup"); + + return result; +} + +static MateRRMode * +find_best_mode (MateRROutput *output) +{ + MateRRMode *preferred; + MateRRMode **modes; + int best_size; + int best_width, best_height, best_rate; + int i; + MateRRMode *best_mode; + + preferred = mate_rr_output_get_preferred_mode (output); + if (preferred) + return preferred; + + modes = mate_rr_output_list_modes (output); + if (!modes) + return NULL; + + best_size = best_width = best_height = best_rate = 0; + best_mode = NULL; + + for (i = 0; modes[i] != NULL; i++) { + int w, h, r; + int size; + + w = mate_rr_mode_get_width (modes[i]); + h = mate_rr_mode_get_height (modes[i]); + r = mate_rr_mode_get_freq (modes[i]); + + size = w * h; + + if (size > best_size) { + best_size = size; + best_width = w; + best_height = h; + best_rate = r; + best_mode = modes[i]; + } else if (size == best_size) { + if (r > best_rate) { + best_rate = r; + best_mode = modes[i]; + } + } + } + + return best_mode; +} + +static gboolean +turn_on (MateRRScreen *screen, + MateOutputInfo *info, + int x, int y) +{ + MateRROutput *output = mate_rr_screen_get_output_by_name (screen, info->name); + MateRRMode *mode = find_best_mode (output); + + if (mode) { + info->on = TRUE; + info->x = x; + info->y = y; + info->width = mate_rr_mode_get_width (mode); + info->height = mate_rr_mode_get_height (mode); + info->rotation = MATE_RR_ROTATION_0; + info->rate = mate_rr_mode_get_freq (mode); + + return TRUE; + } + + return FALSE; +} + +static MateRRConfig * +make_laptop_setup (MateRRScreen *screen) +{ + /* Turn on the laptop, disable everything else */ + MateRRConfig *result = mate_rr_config_new_current (screen); + int i; + + for (i = 0; result->outputs[i] != NULL; ++i) { + MateOutputInfo *info = result->outputs[i]; + + if (is_laptop (screen, info)) { + if (!turn_on (screen, info, 0, 0)) { + mate_rr_config_free (result); + result = NULL; + break; + } + } + else { + info->on = FALSE; + } + } + + if (config_is_all_off (result)) { + mate_rr_config_free (result); + result = NULL; + } + + print_configuration (result, "Laptop setup"); + + /* FIXME - Maybe we should return NULL if there is more than + * one connected "laptop" screen? + */ + return result; + +} + +static int +turn_on_and_get_rightmost_offset (MateRRScreen *screen, MateOutputInfo *info, int x) +{ + if (turn_on (screen, info, x, 0)) + x += info->width; + + return x; +} + +static MateRRConfig * +make_xinerama_setup (MateRRScreen *screen) +{ + /* Turn on everything that has a preferred mode, and + * position it from left to right + */ + MateRRConfig *result = mate_rr_config_new_current (screen); + int i; + int x; + + x = 0; + for (i = 0; result->outputs[i] != NULL; ++i) { + MateOutputInfo *info = result->outputs[i]; + + if (is_laptop (screen, info)) + x = turn_on_and_get_rightmost_offset (screen, info, x); + } + + for (i = 0; result->outputs[i] != NULL; ++i) { + MateOutputInfo *info = result->outputs[i]; + + if (info->connected && !is_laptop (screen, info)) + x = turn_on_and_get_rightmost_offset (screen, info, x); + } + + if (config_is_all_off (result)) { + mate_rr_config_free (result); + result = NULL; + } + + print_configuration (result, "xinerama setup"); + + return result; +} + +static MateRRConfig * +make_other_setup (MateRRScreen *screen) +{ + /* Turn off all laptops, and make all external monitors clone + * from (0, 0) + */ + + MateRRConfig *result = mate_rr_config_new_current (screen); + int i; + + for (i = 0; result->outputs[i] != NULL; ++i) { + MateOutputInfo *info = result->outputs[i]; + + if (is_laptop (screen, info)) { + info->on = FALSE; + } + else { + if (info->connected) + turn_on (screen, info, 0, 0); + } + } + + if (config_is_all_off (result)) { + mate_rr_config_free (result); + result = NULL; + } + + print_configuration (result, "other setup"); + + return result; +} + +static GPtrArray * +sanitize (MsdXrandrManager *manager, GPtrArray *array) +{ + int i; + GPtrArray *new; + + g_debug ("before sanitizing"); + + for (i = 0; i < array->len; ++i) { + if (array->pdata[i]) { + print_configuration (array->pdata[i], "before"); + } + } + + + /* Remove configurations that are duplicates of + * configurations earlier in the cycle + */ + for (i = 0; i < array->len; i++) { + int j; + + for (j = i + 1; j < array->len; j++) { + MateRRConfig *this = array->pdata[j]; + MateRRConfig *other = array->pdata[i]; + + if (this && other && mate_rr_config_equal (this, other)) { + g_debug ("removing duplicate configuration"); + mate_rr_config_free (this); + array->pdata[j] = NULL; + break; + } + } + } + + for (i = 0; i < array->len; ++i) { + MateRRConfig *config = array->pdata[i]; + + if (config && config_is_all_off (config)) { + g_debug ("removing configuration as all outputs are off"); + mate_rr_config_free (array->pdata[i]); + array->pdata[i] = NULL; + } + } + + /* Do a final sanitization pass. This will remove configurations that + * don't fit in the framebuffer's Virtual size. + */ + + for (i = 0; i < array->len; i++) { + MateRRConfig *config = array->pdata[i]; + + if (config) { + GError *error; + + error = NULL; + if (!mate_rr_config_applicable (config, manager->priv->rw_screen, &error)) { /* NULL-GError */ + g_debug ("removing configuration which is not applicable because %s", error->message); + g_error_free (error); + + mate_rr_config_free (config); + array->pdata[i] = NULL; + } + } + } + + /* Remove NULL configurations */ + new = g_ptr_array_new (); + + for (i = 0; i < array->len; ++i) { + if (array->pdata[i]) { + g_ptr_array_add (new, array->pdata[i]); + print_configuration (array->pdata[i], "Final"); + } + } + + if (new->len > 0) { + g_ptr_array_add (new, NULL); + } else { + g_ptr_array_free (new, TRUE); + new = NULL; + } + + g_ptr_array_free (array, TRUE); + + return new; +} + +static void +generate_fn_f7_configs (MsdXrandrManager *mgr) +{ + GPtrArray *array = g_ptr_array_new (); + MateRRScreen *screen = mgr->priv->rw_screen; + + g_debug ("Generating configurations"); + + /* Free any existing list of configurations */ + if (mgr->priv->fn_f7_configs) { + int i; + + for (i = 0; mgr->priv->fn_f7_configs[i] != NULL; ++i) + mate_rr_config_free (mgr->priv->fn_f7_configs[i]); + g_free (mgr->priv->fn_f7_configs); + + mgr->priv->fn_f7_configs = NULL; + mgr->priv->current_fn_f7_config = -1; + } + + g_ptr_array_add (array, mate_rr_config_new_current (screen)); + g_ptr_array_add (array, make_clone_setup (screen)); + g_ptr_array_add (array, make_xinerama_setup (screen)); + g_ptr_array_add (array, make_laptop_setup (screen)); + g_ptr_array_add (array, make_other_setup (screen)); + + array = sanitize (mgr, array); + + if (array) { + mgr->priv->fn_f7_configs = (MateRRConfig **)g_ptr_array_free (array, FALSE); + mgr->priv->current_fn_f7_config = 0; + } +} + +static void +error_message (MsdXrandrManager *mgr, const char *primary_text, GError *error_to_display, const char *secondary_text) +{ +#ifdef HAVE_LIBMATENOTIFY + MsdXrandrManagerPrivate *priv = mgr->priv; + NotifyNotification *notification; + + g_assert (error_to_display == NULL || secondary_text == NULL); + + if (priv->status_icon) + notification = notify_notification_new_with_status_icon (primary_text, + error_to_display ? error_to_display->message : secondary_text, + MSD_XRANDR_ICON_NAME, + priv->status_icon); + else + notification = notify_notification_new (primary_text, + error_to_display ? error_to_display->message : secondary_text, + MSD_XRANDR_ICON_NAME, + NULL); + + notify_notification_show (notification, NULL); /* NULL-GError */ +#else + GtkWidget *dialog; + + dialog = gtk_message_dialog_new (NULL, GTK_DIALOG_MODAL, GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE, + "%s", primary_text); + gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog), "%s", + error_to_display ? error_to_display->message : secondary_text); + + gtk_dialog_run (GTK_DIALOG (dialog)); + gtk_widget_destroy (dialog); +#endif /* HAVE_LIBMATENOTIFY */ +} + +static void +handle_fn_f7 (MsdXrandrManager *mgr, guint32 timestamp) +{ + MsdXrandrManagerPrivate *priv = mgr->priv; + MateRRScreen *screen = priv->rw_screen; + MateRRConfig *current; + GError *error; + + /* Theory of fn-F7 operation + * + * We maintain a datastructure "fn_f7_status", that contains + * a list of MateRRConfig's. Each of the MateRRConfigs has a + * mode (or "off") for each connected output. + * + * When the user hits fn-F7, we cycle to the next MateRRConfig + * in the data structure. If the data structure does not exist, it + * is generated. If the configs in the data structure do not match + * the current hardware reality, it is regenerated. + * + */ + g_debug ("Handling fn-f7"); + + log_open (); + log_msg ("Handling XF86Display hotkey - timestamp %u\n", timestamp); + + error = NULL; + if (!mate_rr_screen_refresh (screen, &error) && error) { + char *str; + + str = g_strdup_printf (_("Could not refresh the screen information: %s"), error->message); + g_error_free (error); + + log_msg ("%s\n", str); + error_message (mgr, str, NULL, _("Trying to switch the monitor configuration anyway.")); + g_free (str); + } + + if (!priv->fn_f7_configs) { + log_msg ("Generating stock configurations:\n"); + generate_fn_f7_configs (mgr); + log_configurations (priv->fn_f7_configs); + } + + current = mate_rr_config_new_current (screen); + + if (priv->fn_f7_configs && + (!mate_rr_config_match (current, priv->fn_f7_configs[0]) || + !mate_rr_config_equal (current, priv->fn_f7_configs[mgr->priv->current_fn_f7_config]))) { + /* Our view of the world is incorrect, so regenerate the + * configurations + */ + generate_fn_f7_configs (mgr); + log_msg ("Regenerated stock configurations:\n"); + log_configurations (priv->fn_f7_configs); + } + + mate_rr_config_free (current); + + if (priv->fn_f7_configs) { + guint32 server_timestamp; + gboolean success; + + mgr->priv->current_fn_f7_config++; + + if (priv->fn_f7_configs[mgr->priv->current_fn_f7_config] == NULL) + mgr->priv->current_fn_f7_config = 0; + + g_debug ("cycling to next configuration (%d)", mgr->priv->current_fn_f7_config); + + print_configuration (priv->fn_f7_configs[mgr->priv->current_fn_f7_config], "new config"); + + g_debug ("applying"); + + /* See https://bugzilla.gnome.org/show_bug.cgi?id=610482 + * + * Sometimes we'll get two rapid XF86Display keypress events, + * but their timestamps will be out of order with respect to the + * RANDR timestamps. This *may* be due to stupid BIOSes sending + * out display-switch keystrokes "to make Windows work". + * + * The X server will error out if the timestamp provided is + * older than a previous change configuration timestamp. We + * assume here that we do want this event to go through still, + * since kernel timestamps may be skewed wrt the X server. + */ + mate_rr_screen_get_timestamps (screen, NULL, &server_timestamp); + if (timestamp < server_timestamp) + timestamp = server_timestamp; + + success = apply_configuration_and_display_error (mgr, priv->fn_f7_configs[mgr->priv->current_fn_f7_config], timestamp); + + if (success) { + log_msg ("Successfully switched to configuration (timestamp %u):\n", timestamp); + log_configuration (priv->fn_f7_configs[mgr->priv->current_fn_f7_config]); + } + } + else { + g_debug ("no configurations generated"); + } + + log_close (); + + g_debug ("done handling fn-f7"); +} + +static MateOutputInfo * +get_laptop_output_info (MateRRScreen *screen, MateRRConfig *config) +{ + int i; + + for (i = 0; config->outputs[i] != NULL; i++) { + MateOutputInfo *info; + + info = config->outputs[i]; + if (is_laptop (screen, info)) + return info; + } + + return NULL; + +} + +static MateRRRotation +get_next_rotation (MateRRRotation allowed_rotations, MateRRRotation current_rotation) +{ + int i; + int current_index; + + /* First, find the index of the current rotation */ + + current_index = -1; + + for (i = 0; i < G_N_ELEMENTS (possible_rotations); i++) { + MateRRRotation r; + + r = possible_rotations[i]; + if (r == current_rotation) { + current_index = i; + break; + } + } + + if (current_index == -1) { + /* Huh, the current_rotation was not one of the supported rotations. Bail out. */ + return current_rotation; + } + + /* Then, find the next rotation that is allowed */ + + i = (current_index + 1) % G_N_ELEMENTS (possible_rotations); + + while (1) { + MateRRRotation r; + + r = possible_rotations[i]; + if (r == current_rotation) { + /* We wrapped around and no other rotation is suported. Bummer. */ + return current_rotation; + } else if (r & allowed_rotations) + return r; + + i = (i + 1) % G_N_ELEMENTS (possible_rotations); + } +} + +/* We use this when the XF86RotateWindows key is pressed. That key is present + * on some tablet PCs; they use it so that the user can rotate the tablet + * easily. + */ +static void +handle_rotate_windows (MsdXrandrManager *mgr, guint32 timestamp) +{ + MsdXrandrManagerPrivate *priv = mgr->priv; + MateRRScreen *screen = priv->rw_screen; + MateRRConfig *current; + MateOutputInfo *rotatable_output_info; + int num_allowed_rotations; + MateRRRotation allowed_rotations; + MateRRRotation next_rotation; + + g_debug ("Handling XF86RotateWindows"); + + /* Which output? */ + + current = mate_rr_config_new_current (screen); + + rotatable_output_info = get_laptop_output_info (screen, current); + if (rotatable_output_info == NULL) { + g_debug ("No laptop outputs found to rotate; XF86RotateWindows key will do nothing"); + goto out; + } + + /* Which rotation? */ + + get_allowed_rotations_for_output (current, priv->rw_screen, rotatable_output_info, &num_allowed_rotations, &allowed_rotations); + next_rotation = get_next_rotation (allowed_rotations, rotatable_output_info->rotation); + + if (next_rotation == rotatable_output_info->rotation) { + g_debug ("No rotations are supported other than the current one; XF86RotateWindows key will do nothing"); + goto out; + } + + /* Rotate */ + + rotatable_output_info->rotation = next_rotation; + + apply_configuration_and_display_error (mgr, current, timestamp); + +out: + mate_rr_config_free (current); +} + +static GdkFilterReturn +event_filter (GdkXEvent *xevent, + GdkEvent *event, + gpointer data) +{ + MsdXrandrManager *manager = data; + XEvent *xev = (XEvent *) xevent; + + if (!manager->priv->running) + return GDK_FILTER_CONTINUE; + + /* verify we have a key event */ + if (xev->xany.type != KeyPress && xev->xany.type != KeyRelease) + return GDK_FILTER_CONTINUE; + + if (xev->xany.type == KeyPress) { + if (xev->xkey.keycode == manager->priv->switch_video_mode_keycode) + handle_fn_f7 (manager, xev->xkey.time); + else if (xev->xkey.keycode == manager->priv->rotate_windows_keycode) + handle_rotate_windows (manager, xev->xkey.time); + + return GDK_FILTER_CONTINUE; + } + + return GDK_FILTER_CONTINUE; +} + +static void +refresh_tray_icon_menu_if_active (MsdXrandrManager *manager, guint32 timestamp) +{ + MsdXrandrManagerPrivate *priv = manager->priv; + + if (priv->popup_menu) { + gtk_menu_shell_cancel (GTK_MENU_SHELL (priv->popup_menu)); /* status_icon_popup_menu_selection_done_cb() will free everything */ + status_icon_popup_menu (manager, 0, timestamp); + } +} + +static void +auto_configure_outputs (MsdXrandrManager *manager, guint32 timestamp) +{ + MsdXrandrManagerPrivate *priv = manager->priv; + MateRRConfig *config; + int i; + GList *just_turned_on; + GList *l; + int x; + GError *error; + gboolean applicable; + + config = mate_rr_config_new_current (priv->rw_screen); + + /* For outputs that are connected and on (i.e. they have a CRTC assigned + * to them, so they are getting a signal), we leave them as they are + * with their current modes. + * + * For other outputs, we will turn on connected-but-off outputs and turn + * off disconnected-but-on outputs. + * + * FIXME: If an output remained connected+on, it would be nice to ensure + * that the output's CRTCs still has a reasonable mode (think of + * changing one monitor for another with different capabilities). + */ + + just_turned_on = NULL; + + for (i = 0; config->outputs[i] != NULL; i++) { + MateOutputInfo *output = config->outputs[i]; + + if (output->connected && !output->on) { + output->on = TRUE; + output->rotation = MATE_RR_ROTATION_0; + just_turned_on = g_list_prepend (just_turned_on, GINT_TO_POINTER (i)); + } else if (!output->connected && output->on) + output->on = FALSE; + } + + /* Now, lay out the outputs from left to right. Put first the outputs + * which remained on; put last the outputs that were newly turned on. + */ + + x = 0; + + /* First, outputs that remained on */ + + for (i = 0; config->outputs[i] != NULL; i++) { + MateOutputInfo *output = config->outputs[i]; + + if (g_list_find (just_turned_on, GINT_TO_POINTER (i))) + continue; + + if (output->on) { + g_assert (output->connected); + + output->x = x; + output->y = 0; + + x += output->width; + } + } + + /* Second, outputs that were newly-turned on */ + + for (l = just_turned_on; l; l = l->next) { + MateOutputInfo *output; + + i = GPOINTER_TO_INT (l->data); + output = config->outputs[i]; + + g_assert (output->on && output->connected); + + output->x = x; + output->y = 0; + + /* since the output was off, use its preferred width/height (it doesn't have a real width/height yet) */ + output->width = output->pref_width; + output->height = output->pref_height; + + x += output->width; + } + + /* Check if we have a large enough framebuffer size. If not, turn off + * outputs from right to left until we reach a usable size. + */ + + just_turned_on = g_list_reverse (just_turned_on); /* now the outputs here are from right to left */ + + l = just_turned_on; + while (1) { + MateOutputInfo *output; + gboolean is_bounds_error; + + error = NULL; + applicable = mate_rr_config_applicable (config, priv->rw_screen, &error); + + if (applicable) + break; + + is_bounds_error = g_error_matches (error, MATE_RR_ERROR, MATE_RR_ERROR_BOUNDS_ERROR); + g_error_free (error); + + if (!is_bounds_error) + break; + + if (l) { + i = GPOINTER_TO_INT (l->data); + l = l->next; + + output = config->outputs[i]; + output->on = FALSE; + } else + break; + } + + /* Apply the configuration! */ + + if (applicable) + apply_configuration_and_display_error (manager, config, timestamp); + + g_list_free (just_turned_on); + mate_rr_config_free (config); + + /* Finally, even though we did a best-effort job in sanitizing the + * outputs, we don't know the physical layout of the monitors. We'll + * start the display capplet so that the user can tweak things to his + * liking. + */ + +#if 0 + /* FIXME: This is disabled for now. The capplet is not a single-instance application. + * If you do this: + * + * 1. Start the display capplet + * + * 2. Plug an extra monitor + * + * 3. Hit the "Detect displays" button + * + * Then we will get a RANDR event because X re-probes the outputs. We don't want to + * start up a second display capplet right there! + */ + + run_display_capplet (NULL); +#endif +} + +static void +apply_color_profiles (void) +{ + gboolean ret; + GError *error = NULL; + + /* run the mate-color-manager apply program */ + ret = g_spawn_command_line_async (BINDIR "/gcm-apply", &error); + if (!ret) { + /* only print the warning if the binary is installed */ + if (error->code != G_SPAWN_ERROR_NOENT) { + g_warning ("failed to apply color profiles: %s", error->message); + } + g_error_free (error); + } +} + +static void +on_randr_event (MateRRScreen *screen, gpointer data) +{ + MsdXrandrManager *manager = MSD_XRANDR_MANAGER (data); + MsdXrandrManagerPrivate *priv = manager->priv; + guint32 change_timestamp, config_timestamp; + + if (!priv->running) + return; + + mate_rr_screen_get_timestamps (screen, &change_timestamp, &config_timestamp); + + log_open (); + log_msg ("Got RANDR event with timestamps change=%u %c config=%u\n", + change_timestamp, + timestamp_relationship (change_timestamp, config_timestamp), + config_timestamp); + + if (change_timestamp >= config_timestamp) { + /* The event is due to an explicit configuration change. + * + * If the change was performed by us, then we need to do nothing. + * + * If the change was done by some other X client, we don't need + * to do anything, either; the screen is already configured. + */ + show_timestamps_dialog (manager, "ignoring since change > config"); + log_msg (" Ignoring event since change >= config\n"); + } else { + /* Here, config_timestamp > change_timestamp. This means that + * the screen got reconfigured because of hotplug/unplug; the X + * server is just notifying us, and we need to configure the + * outputs in a sane way. + */ + + char *intended_filename; + GError *error; + gboolean success; + + show_timestamps_dialog (manager, "need to deal with reconfiguration, as config > change"); + + intended_filename = mate_rr_config_get_intended_filename (); + + error = NULL; + success = apply_configuration_from_filename (manager, intended_filename, TRUE, config_timestamp, &error); + g_free (intended_filename); + + if (!success) { + /* We don't bother checking the error type. + * + * Both G_FILE_ERROR_NOENT and + * MATE_RR_ERROR_NO_MATCHING_CONFIG would mean, "there + * was no configuration to apply, or none that matched + * the current outputs", and in that case we need to run + * our fallback. + * + * Any other error means "we couldn't do the smart thing + * of using a previously- saved configuration, anyway, + * for some other reason. In that case, we also need to + * run our fallback to avoid leaving the user with a + * bogus configuration. + */ + + if (error) + g_error_free (error); + + if (config_timestamp != priv->last_config_timestamp) { + priv->last_config_timestamp = config_timestamp; + auto_configure_outputs (manager, config_timestamp); + log_msg (" Automatically configured outputs to deal with event\n"); + } else + log_msg (" Ignored event as old and new config timestamps are the same\n"); + } else + log_msg ("Applied stored configuration to deal with event\n"); + } + + /* poke mate-color-manager */ + apply_color_profiles (); + + refresh_tray_icon_menu_if_active (manager, MAX (change_timestamp, config_timestamp)); + + log_close (); +} + +static void +run_display_capplet (GtkWidget *widget) +{ + GdkScreen *screen; + GError *error; + + if (widget) + screen = gtk_widget_get_screen (widget); + else + screen = gdk_screen_get_default (); + + error = NULL; + if (!gdk_spawn_command_line_on_screen (screen, MSD_XRANDR_DISPLAY_CAPPLET, &error)) { + GtkWidget *dialog; + + dialog = gtk_message_dialog_new_with_markup (NULL, 0, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, + "<span weight=\"bold\" size=\"larger\">" + "Display configuration could not be run" + "</span>\n\n" + "%s", error->message); + gtk_dialog_run (GTK_DIALOG (dialog)); + gtk_widget_destroy (dialog); + + g_error_free (error); + } +} + +static void +popup_menu_configure_display_cb (GtkMenuItem *item, gpointer data) +{ + run_display_capplet (GTK_WIDGET (item)); +} + +static void +status_icon_popup_menu_selection_done_cb (GtkMenuShell *menu_shell, gpointer data) +{ + MsdXrandrManager *manager = MSD_XRANDR_MANAGER (data); + struct MsdXrandrManagerPrivate *priv = manager->priv; + + gtk_widget_destroy (priv->popup_menu); + priv->popup_menu = NULL; + + mate_rr_labeler_hide (priv->labeler); + g_object_unref (priv->labeler); + priv->labeler = NULL; + + mate_rr_config_free (priv->configuration); + priv->configuration = NULL; +} + +#define OUTPUT_TITLE_ITEM_BORDER 2 +#define OUTPUT_TITLE_ITEM_PADDING 4 + +/* This is an expose-event hander for the title label for each MateRROutput. + * We want each title to have a colored background, so we paint that background, then + * return FALSE to let GtkLabel expose itself (i.e. paint the label's text), and then + * we have a signal_connect_after handler as well. See the comments below + * to see why that "after" handler is needed. + */ +static gboolean +output_title_label_expose_event_cb (GtkWidget *widget, GdkEventExpose *event, gpointer data) +{ + MsdXrandrManager *manager = MSD_XRANDR_MANAGER (data); + struct MsdXrandrManagerPrivate *priv = manager->priv; + MateOutputInfo *output; + GdkColor color; + cairo_t *cr; + GtkAllocation allocation; + + g_assert (GTK_IS_LABEL (widget)); + + output = g_object_get_data (G_OBJECT (widget), "output"); + g_assert (output != NULL); + + g_assert (priv->labeler != NULL); + + /* Draw a black rectangular border, filled with the color that corresponds to this output */ + + mate_rr_labeler_get_color_for_output (priv->labeler, output, &color); + + cr = gdk_cairo_create (gtk_widget_get_window (widget)); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_line_width (cr, OUTPUT_TITLE_ITEM_BORDER); + gtk_widget_get_allocation (widget, &allocation); + cairo_rectangle (cr, + allocation.x + OUTPUT_TITLE_ITEM_BORDER / 2.0, + allocation.y + OUTPUT_TITLE_ITEM_BORDER / 2.0, + allocation.width - OUTPUT_TITLE_ITEM_BORDER, + allocation.height - OUTPUT_TITLE_ITEM_BORDER); + cairo_stroke (cr); + + gdk_cairo_set_source_color (cr, &color); + cairo_rectangle (cr, + allocation.x + OUTPUT_TITLE_ITEM_BORDER, + allocation.y + OUTPUT_TITLE_ITEM_BORDER, + allocation.width - 2 * OUTPUT_TITLE_ITEM_BORDER, + allocation.height - 2 * OUTPUT_TITLE_ITEM_BORDER); + + cairo_fill (cr); + + /* We want the label to always show up as if it were sensitive + * ("style->fg[GTK_STATE_NORMAL]"), even though the label is insensitive + * due to being inside an insensitive menu item. So, here we have a + * HACK in which we frob the label's state directly. GtkLabel's expose + * handler will be run after this function, so it will think that the + * label is in GTK_STATE_NORMAL. We reset the label's state back to + * insensitive in output_title_label_after_expose_event_cb(). + * + * Yay for fucking with GTK+'s internals. + */ + + gtk_widget_set_state (widget, GTK_STATE_NORMAL); + + return FALSE; +} + +/* See the comment in output_title_event_box_expose_event_cb() about this funny label widget */ +static gboolean +output_title_label_after_expose_event_cb (GtkWidget *widget, GdkEventExpose *event, gpointer data) +{ + g_assert (GTK_IS_LABEL (widget)); + gtk_widget_set_state (widget, GTK_STATE_INSENSITIVE); + + return FALSE; +} + +static void +title_item_size_allocate_cb (GtkWidget *widget, GtkAllocation *allocation, gpointer data) +{ + /* When GtkMenu does size_request on its items, it asks them for their "toggle size", + * which will be non-zero when there are check/radio items. GtkMenu remembers + * the largest of those sizes. During the size_allocate pass, GtkMenu calls + * gtk_menu_item_toggle_size_allocate() with that value, to tell the menu item + * that it should later paint its child a bit to the right of its edge. + * + * However, we want the "title" menu items for each RANDR output to span the *whole* + * allocation of the menu item, not just the "allocation minus toggle" area. + * + * So, we let the menu item size_allocate itself as usual, but this + * callback gets run afterward. Here we hack a toggle size of 0 into + * the menu item, and size_allocate it by hand *again*. We also need to + * avoid recursing into this function. + */ + + g_assert (GTK_IS_MENU_ITEM (widget)); + + gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (widget), 0); + + g_signal_handlers_block_by_func (widget, title_item_size_allocate_cb, NULL); + + /* Sigh. There is no way to turn on GTK_ALLOC_NEEDED outside of GTK+ + * itself; also, since calling size_allocate on a widget with the same + * allcation is a no-op, we need to allocate with a "different" size + * first. + */ + + allocation->width++; + gtk_widget_size_allocate (widget, allocation); + + allocation->width--; + gtk_widget_size_allocate (widget, allocation); + + g_signal_handlers_unblock_by_func (widget, title_item_size_allocate_cb, NULL); +} + +static GtkWidget * +make_menu_item_for_output_title (MsdXrandrManager *manager, MateOutputInfo *output) +{ + GtkWidget *item; + GtkWidget *label; + char *str; + GdkColor black = { 0, 0, 0, 0 }; + + item = gtk_menu_item_new (); + + g_signal_connect (item, "size-allocate", + G_CALLBACK (title_item_size_allocate_cb), NULL); + + str = g_markup_printf_escaped ("<b>%s</b>", output->display_name); + label = gtk_label_new (NULL); + gtk_label_set_markup (GTK_LABEL (label), str); + g_free (str); + + /* Make the label explicitly black. We don't want it to follow the + * theme's colors, since the label is always shown against a light + * pastel background. See bgo#556050 + */ + gtk_widget_modify_fg (label, gtk_widget_get_state (label), &black); + + /* Add padding around the label to fit the box that we'll draw for color-coding */ + gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5); + gtk_misc_set_padding (GTK_MISC (label), + OUTPUT_TITLE_ITEM_BORDER + OUTPUT_TITLE_ITEM_PADDING, + OUTPUT_TITLE_ITEM_BORDER + OUTPUT_TITLE_ITEM_PADDING); + + gtk_container_add (GTK_CONTAINER (item), label); + + /* We want to paint a colored box as the background of the label, so we connect + * to its expose-event signal. See the comment in *** to see why need to connect + * to the label both 'before' and 'after'. + */ + g_signal_connect (label, "expose-event", + G_CALLBACK (output_title_label_expose_event_cb), manager); + g_signal_connect_after (label, "expose-event", + G_CALLBACK (output_title_label_after_expose_event_cb), manager); + + g_object_set_data (G_OBJECT (label), "output", output); + + gtk_widget_set_sensitive (item, FALSE); /* the title is not selectable */ + gtk_widget_show_all (item); + + return item; +} + +static void +get_allowed_rotations_for_output (MateRRConfig *config, + MateRRScreen *rr_screen, + MateOutputInfo *output, + int *out_num_rotations, + MateRRRotation *out_rotations) +{ + MateRRRotation current_rotation; + int i; + + *out_num_rotations = 0; + *out_rotations = 0; + + current_rotation = output->rotation; + + /* Yay for brute force */ + + for (i = 0; i < G_N_ELEMENTS (possible_rotations); i++) { + MateRRRotation rotation_to_test; + + rotation_to_test = possible_rotations[i]; + + output->rotation = rotation_to_test; + + if (mate_rr_config_applicable (config, rr_screen, NULL)) { /* NULL-GError */ + (*out_num_rotations)++; + (*out_rotations) |= rotation_to_test; + } + } + + output->rotation = current_rotation; + + if (*out_num_rotations == 0 || *out_rotations == 0) { + g_warning ("Huh, output %p says it doesn't support any rotations, and yet it has a current rotation?", output); + *out_num_rotations = 1; + *out_rotations = output->rotation; + } +} + +static void +add_unsupported_rotation_item (MsdXrandrManager *manager) +{ + struct MsdXrandrManagerPrivate *priv = manager->priv; + GtkWidget *item; + GtkWidget *label; + gchar *markup; + + item = gtk_menu_item_new (); + + label = gtk_label_new (NULL); + markup = g_strdup_printf ("<i>%s</i>", _("Rotation not supported")); + gtk_label_set_markup (GTK_LABEL (label), markup); + g_free (markup); + gtk_container_add (GTK_CONTAINER (item), label); + + gtk_widget_show_all (item); + gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), item); +} + +static void +ensure_current_configuration_is_saved (void) +{ + MateRRScreen *rr_screen; + MateRRConfig *rr_config; + + /* Normally, mate_rr_config_save() creates a backup file based on the + * old monitors.xml. However, if *that* file didn't exist, there is + * nothing from which to create a backup. So, here we'll save the + * current/unchanged configuration and then let our caller call + * mate_rr_config_save() again with the new/changed configuration, so + * that there *will* be a backup file in the end. + */ + + rr_screen = mate_rr_screen_new (gdk_screen_get_default (), NULL, NULL, NULL); /* NULL-GError */ + if (!rr_screen) + return; + + rr_config = mate_rr_config_new_current (rr_screen); + mate_rr_config_save (rr_config, NULL); /* NULL-GError */ + + mate_rr_config_free (rr_config); + mate_rr_screen_destroy (rr_screen); +} + +static void +output_rotation_item_activate_cb (GtkCheckMenuItem *item, gpointer data) +{ + MsdXrandrManager *manager = MSD_XRANDR_MANAGER (data); + struct MsdXrandrManagerPrivate *priv = manager->priv; + MateOutputInfo *output; + MateRRRotation rotation; + GError *error; + + /* Not interested in deselected items */ + if (!gtk_check_menu_item_get_active (item)) + return; + + ensure_current_configuration_is_saved (); + + output = g_object_get_data (G_OBJECT (item), "output"); + rotation = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (item), "rotation")); + + output->rotation = rotation; + + error = NULL; + if (!mate_rr_config_save (priv->configuration, &error)) { + error_message (manager, _("Could not save monitor configuration"), error, NULL); + if (error) + g_error_free (error); + + return; + } + + try_to_apply_intended_configuration (manager, NULL, gtk_get_current_event_time (), NULL); /* NULL-GError */ +} + +static void +add_items_for_rotations (MsdXrandrManager *manager, MateOutputInfo *output, MateRRRotation allowed_rotations) +{ + typedef struct { + MateRRRotation rotation; + const char * name; + } RotationInfo; + static const RotationInfo rotations[] = { + { MATE_RR_ROTATION_0, N_("Normal") }, + { MATE_RR_ROTATION_90, N_("Left") }, + { MATE_RR_ROTATION_270, N_("Right") }, + { MATE_RR_ROTATION_180, N_("Upside Down") }, + /* We don't allow REFLECT_X or REFLECT_Y for now, as mate-display-properties doesn't allow them, either */ + }; + + struct MsdXrandrManagerPrivate *priv = manager->priv; + int i; + GSList *group; + GtkWidget *active_item; + gulong active_item_activate_id; + + group = NULL; + active_item = NULL; + active_item_activate_id = 0; + + for (i = 0; i < G_N_ELEMENTS (rotations); i++) { + MateRRRotation rot; + GtkWidget *item; + gulong activate_id; + + rot = rotations[i].rotation; + + if ((allowed_rotations & rot) == 0) { + /* don't display items for rotations which are + * unavailable. Their availability is not under the + * user's control, anyway. + */ + continue; + } + + item = gtk_radio_menu_item_new_with_label (group, _(rotations[i].name)); + gtk_widget_show_all (item); + gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), item); + + g_object_set_data (G_OBJECT (item), "output", output); + g_object_set_data (G_OBJECT (item), "rotation", GINT_TO_POINTER (rot)); + + activate_id = g_signal_connect (item, "activate", + G_CALLBACK (output_rotation_item_activate_cb), manager); + + group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (item)); + + if (rot == output->rotation) { + active_item = item; + active_item_activate_id = activate_id; + } + } + + if (active_item) { + /* Block the signal temporarily so our callback won't be called; + * we are just setting up the UI. + */ + g_signal_handler_block (active_item, active_item_activate_id); + + gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (active_item), TRUE); + + g_signal_handler_unblock (active_item, active_item_activate_id); + } + +} + +static void +add_rotation_items_for_output (MsdXrandrManager *manager, MateOutputInfo *output) +{ + struct MsdXrandrManagerPrivate *priv = manager->priv; + int num_rotations; + MateRRRotation rotations; + + get_allowed_rotations_for_output (priv->configuration, priv->rw_screen, output, &num_rotations, &rotations); + + if (num_rotations == 1) + add_unsupported_rotation_item (manager); + else + add_items_for_rotations (manager, output, rotations); +} + +static void +add_menu_items_for_output (MsdXrandrManager *manager, MateOutputInfo *output) +{ + struct MsdXrandrManagerPrivate *priv = manager->priv; + GtkWidget *item; + + item = make_menu_item_for_output_title (manager, output); + gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), item); + + add_rotation_items_for_output (manager, output); +} + +static void +add_menu_items_for_outputs (MsdXrandrManager *manager) +{ + struct MsdXrandrManagerPrivate *priv = manager->priv; + int i; + + for (i = 0; priv->configuration->outputs[i] != NULL; i++) { + if (priv->configuration->outputs[i]->connected) + add_menu_items_for_output (manager, priv->configuration->outputs[i]); + } +} + +static void +status_icon_popup_menu (MsdXrandrManager *manager, guint button, guint32 timestamp) +{ + struct MsdXrandrManagerPrivate *priv = manager->priv; + GtkWidget *item; + + g_assert (priv->configuration == NULL); + priv->configuration = mate_rr_config_new_current (priv->rw_screen); + + g_assert (priv->labeler == NULL); + priv->labeler = mate_rr_labeler_new (priv->configuration); + + g_assert (priv->popup_menu == NULL); + priv->popup_menu = gtk_menu_new (); + + add_menu_items_for_outputs (manager); + + item = gtk_separator_menu_item_new (); + gtk_widget_show (item); + gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), item); + + item = gtk_menu_item_new_with_mnemonic (_("_Configure Display Settings…")); + g_signal_connect (item, "activate", + G_CALLBACK (popup_menu_configure_display_cb), manager); + gtk_widget_show (item); + gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), item); + + g_signal_connect (priv->popup_menu, "selection-done", + G_CALLBACK (status_icon_popup_menu_selection_done_cb), manager); + + gtk_menu_popup (GTK_MENU (priv->popup_menu), NULL, NULL, + gtk_status_icon_position_menu, + priv->status_icon, button, timestamp); +} + +static void +status_icon_activate_cb (GtkStatusIcon *status_icon, gpointer data) +{ + MsdXrandrManager *manager = MSD_XRANDR_MANAGER (data); + + /* Suck; we don't get a proper button/timestamp */ + status_icon_popup_menu (manager, 0, gtk_get_current_event_time ()); +} + +static void +status_icon_popup_menu_cb (GtkStatusIcon *status_icon, guint button, guint32 timestamp, gpointer data) +{ + MsdXrandrManager *manager = MSD_XRANDR_MANAGER (data); + + status_icon_popup_menu (manager, button, timestamp); +} + +static void +status_icon_start (MsdXrandrManager *manager) +{ + struct MsdXrandrManagerPrivate *priv = manager->priv; + + /* Ideally, we should detect if we are on a tablet and only display + * the icon in that case. + */ + if (!priv->status_icon) { + priv->status_icon = gtk_status_icon_new_from_icon_name (MSD_XRANDR_ICON_NAME); + gtk_status_icon_set_tooltip_text (priv->status_icon, _("Configure display settings")); + + g_signal_connect (priv->status_icon, "activate", + G_CALLBACK (status_icon_activate_cb), manager); + g_signal_connect (priv->status_icon, "popup-menu", + G_CALLBACK (status_icon_popup_menu_cb), manager); + } +} + +static void +status_icon_stop (MsdXrandrManager *manager) +{ + struct MsdXrandrManagerPrivate *priv = manager->priv; + + if (priv->status_icon) { + g_signal_handlers_disconnect_by_func ( + priv->status_icon, G_CALLBACK (status_icon_activate_cb), manager); + g_signal_handlers_disconnect_by_func ( + priv->status_icon, G_CALLBACK (status_icon_popup_menu_cb), manager); + + /* hide the icon before unreffing it; otherwise we will leak + whitespace in the notification area due to a bug in there */ + gtk_status_icon_set_visible (priv->status_icon, FALSE); + g_object_unref (priv->status_icon); + priv->status_icon = NULL; + } +} + +static void +start_or_stop_icon (MsdXrandrManager *manager) +{ + if (mateconf_client_get_bool (manager->priv->client, CONF_KEY_SHOW_NOTIFICATION_ICON, NULL)) { + status_icon_start (manager); + } + else { + status_icon_stop (manager); + } +} + +static void +on_config_changed (MateConfClient *client, + guint cnxn_id, + MateConfEntry *entry, + MsdXrandrManager *manager) +{ + if (strcmp (entry->key, CONF_KEY_SHOW_NOTIFICATION_ICON) == 0) + start_or_stop_icon (manager); +} + +static gboolean +apply_intended_configuration (MsdXrandrManager *manager, const char *intended_filename, guint32 timestamp) +{ + GError *my_error; + gboolean result; + + my_error = NULL; + result = apply_configuration_from_filename (manager, intended_filename, FALSE, timestamp, &my_error); + if (!result) { + if (my_error) { + if (!g_error_matches (my_error, G_FILE_ERROR, G_FILE_ERROR_NOENT)) + error_message (manager, _("Could not apply the stored configuration for monitors"), my_error, NULL); + + g_error_free (my_error); + } + } + + return result; +} + +static void +apply_default_boot_configuration (MsdXrandrManager *mgr, guint32 timestamp) +{ + MsdXrandrManagerPrivate *priv = mgr->priv; + MateRRScreen *screen = priv->rw_screen; + MateRRConfig *config; + gboolean turn_on_external, turn_on_laptop; + + turn_on_external = + mateconf_client_get_bool (mgr->priv->client, CONF_KEY_TURN_ON_EXTERNAL_MONITORS_AT_STARTUP, NULL); + turn_on_laptop = + mateconf_client_get_bool (mgr->priv->client, CONF_KEY_TURN_ON_LAPTOP_MONITOR_AT_STARTUP, NULL); + + if (turn_on_external && turn_on_laptop) + config = make_clone_setup (screen); + else if (!turn_on_external && turn_on_laptop) + config = make_laptop_setup (screen); + else if (turn_on_external && !turn_on_laptop) + config = make_other_setup (screen); + else + config = make_laptop_setup (screen); + + if (config) { + apply_configuration_and_display_error (mgr, config, timestamp); + mate_rr_config_free (config); + } +} + +static gboolean +apply_stored_configuration_at_startup (MsdXrandrManager *manager, guint32 timestamp) +{ + GError *my_error; + gboolean success; + char *backup_filename; + char *intended_filename; + + backup_filename = mate_rr_config_get_backup_filename (); + intended_filename = mate_rr_config_get_intended_filename (); + + /* 1. See if there was a "saved" configuration. If there is one, it means + * that the user had selected to change the display configuration, but the + * machine crashed. In that case, we'll apply *that* configuration and save it on top of the + * "intended" one. + */ + + my_error = NULL; + + success = apply_configuration_from_filename (manager, backup_filename, FALSE, timestamp, &my_error); + if (success) { + /* The backup configuration existed, and could be applied + * successfully, so we must restore it on top of the + * failed/intended one. + */ + restore_backup_configuration (manager, backup_filename, intended_filename, timestamp); + goto out; + } + + if (!g_error_matches (my_error, G_FILE_ERROR, G_FILE_ERROR_NOENT)) { + /* Epic fail: there (probably) was a backup configuration, but + * we could not apply it. The only thing we can do is delete + * the backup configuration. Let's hope that the user doesn't + * get left with an unusable display... + */ + + unlink (backup_filename); + goto out; + } + + /* 2. There was no backup configuration! This means we are + * good. Apply the intended configuration instead. + */ + + success = apply_intended_configuration (manager, intended_filename, timestamp); + +out: + + if (my_error) + g_error_free (my_error); + + g_free (backup_filename); + g_free (intended_filename); + + return success; +} + +static gboolean +apply_default_configuration_from_file (MsdXrandrManager *manager, guint32 timestamp) +{ + MsdXrandrManagerPrivate *priv = manager->priv; + char *default_config_filename; + gboolean result; + + default_config_filename = mateconf_client_get_string (priv->client, CONF_KEY_DEFAULT_CONFIGURATION_FILE, NULL); + if (!default_config_filename) + return FALSE; + + result = apply_configuration_from_filename (manager, default_config_filename, TRUE, timestamp, NULL); + + g_free (default_config_filename); + return result; +} + +gboolean +msd_xrandr_manager_start (MsdXrandrManager *manager, + GError **error) +{ + g_debug ("Starting xrandr manager"); + mate_settings_profile_start (NULL); + + log_open (); + log_msg ("------------------------------------------------------------\nSTARTING XRANDR PLUGIN\n"); + + manager->priv->rw_screen = mate_rr_screen_new ( + gdk_screen_get_default (), on_randr_event, manager, error); + + if (manager->priv->rw_screen == NULL) { + log_msg ("Could not initialize the RANDR plugin%s%s\n", + (error && *error) ? ": " : "", + (error && *error) ? (*error)->message : ""); + log_close (); + return FALSE; + } + + log_msg ("State of screen at startup:\n"); + log_screen (manager->priv->rw_screen); + + manager->priv->running = TRUE; + manager->priv->client = mateconf_client_get_default (); + + g_assert (manager->priv->notify_id == 0); + + mateconf_client_add_dir (manager->priv->client, CONF_DIR, + MATECONF_CLIENT_PRELOAD_ONELEVEL, + NULL); + + manager->priv->notify_id = + mateconf_client_notify_add ( + manager->priv->client, CONF_DIR, + (MateConfClientNotifyFunc)on_config_changed, + manager, NULL, NULL); + + if (manager->priv->switch_video_mode_keycode) { + gdk_error_trap_push (); + + XGrabKey (gdk_x11_get_default_xdisplay(), + manager->priv->switch_video_mode_keycode, AnyModifier, + gdk_x11_get_default_root_xwindow(), + True, GrabModeAsync, GrabModeAsync); + + gdk_flush (); + gdk_error_trap_pop (); + } + + if (manager->priv->rotate_windows_keycode) { + gdk_error_trap_push (); + + XGrabKey (gdk_x11_get_default_xdisplay(), + manager->priv->rotate_windows_keycode, AnyModifier, + gdk_x11_get_default_root_xwindow(), + True, GrabModeAsync, GrabModeAsync); + + gdk_flush (); + gdk_error_trap_pop (); + } + + show_timestamps_dialog (manager, "Startup"); + if (!apply_stored_configuration_at_startup (manager, GDK_CURRENT_TIME)) /* we don't have a real timestamp at startup anyway */ + if (!apply_default_configuration_from_file (manager, GDK_CURRENT_TIME)) + apply_default_boot_configuration (manager, GDK_CURRENT_TIME); + + log_msg ("State of screen after initial configuration:\n"); + log_screen (manager->priv->rw_screen); + + gdk_window_add_filter (gdk_get_default_root_window(), + (GdkFilterFunc)event_filter, + manager); + + start_or_stop_icon (manager); + + log_close (); + + mate_settings_profile_end (NULL); + + return TRUE; +} + +void +msd_xrandr_manager_stop (MsdXrandrManager *manager) +{ + g_debug ("Stopping xrandr manager"); + + manager->priv->running = FALSE; + + if (manager->priv->switch_video_mode_keycode) { + gdk_error_trap_push (); + + XUngrabKey (gdk_x11_get_default_xdisplay(), + manager->priv->switch_video_mode_keycode, AnyModifier, + gdk_x11_get_default_root_xwindow()); + + gdk_error_trap_pop (); + } + + if (manager->priv->rotate_windows_keycode) { + gdk_error_trap_push (); + + XUngrabKey (gdk_x11_get_default_xdisplay(), + manager->priv->rotate_windows_keycode, AnyModifier, + gdk_x11_get_default_root_xwindow()); + + gdk_error_trap_pop (); + } + + gdk_window_remove_filter (gdk_get_default_root_window (), + (GdkFilterFunc) event_filter, + manager); + + if (manager->priv->notify_id != 0) { + mateconf_client_remove_dir (manager->priv->client, + CONF_DIR, NULL); + mateconf_client_notify_remove (manager->priv->client, + manager->priv->notify_id); + manager->priv->notify_id = 0; + } + + if (manager->priv->client != NULL) { + g_object_unref (manager->priv->client); + manager->priv->client = NULL; + } + + if (manager->priv->rw_screen != NULL) { + mate_rr_screen_destroy (manager->priv->rw_screen); + manager->priv->rw_screen = NULL; + } + + if (manager->priv->dbus_connection != NULL) { + dbus_g_connection_unref (manager->priv->dbus_connection); + manager->priv->dbus_connection = NULL; + } + + status_icon_stop (manager); + + log_open (); + log_msg ("STOPPING XRANDR PLUGIN\n------------------------------------------------------------\n"); + log_close (); +} + +static void +msd_xrandr_manager_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec) +{ + MsdXrandrManager *self; + + self = MSD_XRANDR_MANAGER (object); + + switch (prop_id) { + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +msd_xrandr_manager_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + MsdXrandrManager *self; + + self = MSD_XRANDR_MANAGER (object); + + switch (prop_id) { + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static GObject * +msd_xrandr_manager_constructor (GType type, + guint n_construct_properties, + GObjectConstructParam *construct_properties) +{ + MsdXrandrManager *xrandr_manager; + MsdXrandrManagerClass *klass; + + klass = MSD_XRANDR_MANAGER_CLASS (g_type_class_peek (MSD_TYPE_XRANDR_MANAGER)); + + xrandr_manager = MSD_XRANDR_MANAGER (G_OBJECT_CLASS (msd_xrandr_manager_parent_class)->constructor (type, + n_construct_properties, + construct_properties)); + + return G_OBJECT (xrandr_manager); +} + +static void +msd_xrandr_manager_dispose (GObject *object) +{ + MsdXrandrManager *xrandr_manager; + + xrandr_manager = MSD_XRANDR_MANAGER (object); + + G_OBJECT_CLASS (msd_xrandr_manager_parent_class)->dispose (object); +} + +static void +msd_xrandr_manager_class_init (MsdXrandrManagerClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + + object_class->get_property = msd_xrandr_manager_get_property; + object_class->set_property = msd_xrandr_manager_set_property; + object_class->constructor = msd_xrandr_manager_constructor; + object_class->dispose = msd_xrandr_manager_dispose; + object_class->finalize = msd_xrandr_manager_finalize; + + dbus_g_object_type_install_info (MSD_TYPE_XRANDR_MANAGER, &dbus_glib_msd_xrandr_manager_object_info); + + g_type_class_add_private (klass, sizeof (MsdXrandrManagerPrivate)); +} + +static guint +get_keycode_for_keysym_name (const char *name) +{ + Display *dpy; + guint keyval; + + dpy = gdk_x11_get_default_xdisplay (); + + keyval = gdk_keyval_from_name (name); + return XKeysymToKeycode (dpy, keyval); +} + +static void +msd_xrandr_manager_init (MsdXrandrManager *manager) +{ + manager->priv = MSD_XRANDR_MANAGER_GET_PRIVATE (manager); + + manager->priv->switch_video_mode_keycode = get_keycode_for_keysym_name (VIDEO_KEYSYM); + manager->priv->rotate_windows_keycode = get_keycode_for_keysym_name (ROTATE_KEYSYM); + + manager->priv->current_fn_f7_config = -1; + manager->priv->fn_f7_configs = NULL; +} + +static void +msd_xrandr_manager_finalize (GObject *object) +{ + MsdXrandrManager *xrandr_manager; + + g_return_if_fail (object != NULL); + g_return_if_fail (MSD_IS_XRANDR_MANAGER (object)); + + xrandr_manager = MSD_XRANDR_MANAGER (object); + + g_return_if_fail (xrandr_manager->priv != NULL); + + G_OBJECT_CLASS (msd_xrandr_manager_parent_class)->finalize (object); +} + +static gboolean +register_manager_dbus (MsdXrandrManager *manager) +{ + GError *error = NULL; + + manager->priv->dbus_connection = dbus_g_bus_get (DBUS_BUS_SESSION, &error); + if (manager->priv->dbus_connection == NULL) { + if (error != NULL) { + g_warning ("Error getting session bus: %s", error->message); + g_error_free (error); + } + return FALSE; + } + + /* Hmm, should we do this in msd_xrandr_manager_start()? */ + dbus_g_connection_register_g_object (manager->priv->dbus_connection, MSD_XRANDR_DBUS_PATH, G_OBJECT (manager)); + + return TRUE; +} + +MsdXrandrManager * +msd_xrandr_manager_new (void) +{ + if (manager_object != NULL) { + g_object_ref (manager_object); + } else { + manager_object = g_object_new (MSD_TYPE_XRANDR_MANAGER, NULL); + g_object_add_weak_pointer (manager_object, + (gpointer *) &manager_object); + + if (!register_manager_dbus (manager_object)) { + g_object_unref (manager_object); + return NULL; + } + } + + return MSD_XRANDR_MANAGER (manager_object); +} |