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Diffstat (limited to 'composer/gconf-bridge.c')
| -rw-r--r-- | composer/gconf-bridge.c | 1249 |
1 files changed, 0 insertions, 1249 deletions
diff --git a/composer/gconf-bridge.c b/composer/gconf-bridge.c deleted file mode 100644 index 49754cfe96..0000000000 --- a/composer/gconf-bridge.c +++ /dev/null @@ -1,1249 +0,0 @@ -/* - * (C) 2005 OpenedHand Ltd. - * - * Author: Jorn Baayen <jorn@openedhand.com> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library 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 - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#include <config.h> - -#include <glib/gi18n-lib.h> -#include <gtk/gtkmessagedialog.h> -#include <string.h> - -#include "gconf-bridge.h" - -struct _GConfBridge { - GConfClient *client; - - GHashTable *bindings; -}; - -/* The data structures for the different kinds of bindings */ -typedef enum { - BINDING_PROP, - BINDING_WINDOW, - BINDING_LIST_STORE -} BindingType; - -typedef struct { - BindingType type; - guint id; - - gboolean delayed_mode; - - char *key; - guint val_notify_id; - GSList *val_changes; /* List of changes made to GConf value, - that have not received change notification - yet. */ - - GObject *object; - GParamSpec *prop; - gulong prop_notify_id; - - guint sync_timeout_id; /* Used in delayed mode */ -} PropBinding; - -typedef struct { - BindingType type; - guint id; - - gboolean bind_size; - gboolean bind_pos; - - char *key_prefix; - - GtkWindow *window; - gulong configure_event_id; - gulong unmap_id; - guint sync_timeout_id; -} WindowBinding; - -typedef struct { - BindingType type; - guint id; - - char *key; - guint val_notify_id; - GSList *val_changes; /* List of changes made to GConf value, - that have not received change notification - yet. */ - - GtkListStore *list_store; - guint row_inserted_id; - guint row_changed_id; - guint row_deleted_id; - guint rows_reordered_id; - - guint sync_idle_id; -} ListStoreBinding; - -/* Some trickery to be able to treat the data structures generically */ -typedef union { - BindingType type; - - PropBinding prop_binding; - WindowBinding window_binding; - ListStoreBinding list_store_binding; -} Binding; - -/* Function prototypes */ -static void -unbind (Binding *binding); - -#if !HAVE_DECL_GCONF_VALUE_COMPARE /* Not in headers in GConf < 2.13 */ -int gconf_value_compare (const GConfValue *value_a, - const GConfValue *value_b); -#endif - -static GConfBridge *bridge = NULL; /* Global GConfBridge object */ - -/* Free up all resources allocated by the GConfBridge. Called on exit. */ -static void -destroy_bridge (void) -{ - g_hash_table_destroy (bridge->bindings); - g_object_unref (bridge->client); - - g_free (bridge); -} - -/** - * gconf_bridge_get - * - * Returns the #GConfBridge. This is a singleton object. - * - * Return value: The #GConfBridge. - **/ -GConfBridge * -gconf_bridge_get (void) -{ - if (bridge) - return bridge; - - gconf_bridge_install_default_error_handler (); - - bridge = g_new (GConfBridge, 1); - - bridge->client = gconf_client_get_default (); - bridge->bindings = g_hash_table_new_full (NULL, NULL, NULL, - (GDestroyNotify) unbind); - - g_atexit (destroy_bridge); - - return bridge; -} - -/** - * gconf_bridge_get_client - * @bridge: A #GConfBridge - * - * Returns the #GConfClient used by @bridge. This is the same #GConfClient - * as returned by gconf_client_get_default(). - * - * Return value: A #GConfClient. - **/ -GConfClient * -gconf_bridge_get_client (GConfBridge *bridge) -{ - g_return_val_if_fail (bridge != NULL, NULL); - - return bridge->client; -} - -/* Generate an ID for a new binding */ -static guint -new_id (void) -{ - static guint id_counter = 0; - - id_counter++; - - return id_counter; -} - -/* - * Property bindings - */ - -/* Syncs a value from GConf to an object property */ -static void -prop_binding_sync_pref_to_prop (PropBinding *binding, - GConfValue *pref_value) -{ - GValue src_value, value; - - /* Make sure we don't enter an infinite synchronizing loop */ - g_signal_handler_block (binding->object, binding->prop_notify_id); - - memset (&src_value, 0, sizeof (GValue)); - - /* First, convert GConfValue to GValue */ - switch (pref_value->type) { - case GCONF_VALUE_STRING: - g_value_init (&src_value, G_TYPE_STRING); - g_value_set_string (&src_value, - gconf_value_get_string (pref_value)); - break; - case GCONF_VALUE_INT: - g_value_init (&src_value, G_TYPE_INT); - g_value_set_int (&src_value, - gconf_value_get_int (pref_value)); - break; - case GCONF_VALUE_BOOL: - g_value_init (&src_value, G_TYPE_BOOLEAN); - g_value_set_boolean (&src_value, - gconf_value_get_bool (pref_value)); - break; - case GCONF_VALUE_FLOAT: - g_value_init (&src_value, G_TYPE_FLOAT); - g_value_set_float (&src_value, - gconf_value_get_float (pref_value)); - break; - default: - g_warning ("prop_binding_sync_pref_to_prop: Unhandled value " - "type '%d'.\n", pref_value->type); - - return; - } - - /* Then convert to the type expected by the object, if necessary */ - memset (&value, 0, sizeof (GValue)); - g_value_init (&value, - G_PARAM_SPEC_VALUE_TYPE (binding->prop)); - - if (src_value.g_type != value.g_type) { - if (!g_value_transform (&src_value, &value)) { - g_warning ("prop_binding_sync_pref_to_prop: Failed to " - "transform a \"%s\" to a \"%s\".", - g_type_name (src_value.g_type), - g_type_name (value.g_type)); - - goto done; - } - - g_object_set_property (binding->object, - binding->prop->name, &value); - } else { - g_object_set_property (binding->object, - binding->prop->name, &src_value); - } - -done: - g_value_unset (&src_value); - g_value_unset (&value); - - g_signal_handler_unblock (binding->object, binding->prop_notify_id); -} - -/* Syncs an object property to GConf */ -static void -prop_binding_sync_prop_to_pref (PropBinding *binding) -{ - GValue value; - GConfValue *gconf_value; - - memset (&value, 0, sizeof (GValue)); - - g_value_init (&value, - G_PARAM_SPEC_VALUE_TYPE (binding->prop)); - g_object_get_property (binding->object, - binding->prop->name, - &value); - - switch (value.g_type) { - case G_TYPE_STRING: - gconf_value = gconf_value_new (GCONF_VALUE_STRING); - gconf_value_set_string (gconf_value, - g_value_get_string (&value)); - break; - case G_TYPE_INT: - gconf_value = gconf_value_new (GCONF_VALUE_INT); - gconf_value_set_int (gconf_value, - g_value_get_int (&value)); - break; - case G_TYPE_UINT: - gconf_value = gconf_value_new (GCONF_VALUE_INT); - gconf_value_set_int (gconf_value, - g_value_get_uint (&value)); - break; - case G_TYPE_LONG: - gconf_value = gconf_value_new (GCONF_VALUE_INT); - gconf_value_set_int (gconf_value, - g_value_get_long (&value)); - break; - case G_TYPE_ULONG: - gconf_value = gconf_value_new (GCONF_VALUE_INT); - gconf_value_set_int (gconf_value, - g_value_get_ulong (&value)); - break; - case G_TYPE_INT64: - gconf_value = gconf_value_new (GCONF_VALUE_INT); - gconf_value_set_int (gconf_value, - g_value_get_int64 (&value)); - break; - case G_TYPE_UINT64: - gconf_value = gconf_value_new (GCONF_VALUE_INT); - gconf_value_set_int (gconf_value, - g_value_get_uint64 (&value)); - break; - case G_TYPE_CHAR: - gconf_value = gconf_value_new (GCONF_VALUE_INT); - gconf_value_set_int (gconf_value, - g_value_get_char (&value)); - break; - case G_TYPE_UCHAR: - gconf_value = gconf_value_new (GCONF_VALUE_INT); - gconf_value_set_int (gconf_value, - g_value_get_uchar (&value)); - break; - case G_TYPE_ENUM: - gconf_value = gconf_value_new (GCONF_VALUE_INT); - gconf_value_set_int (gconf_value, - g_value_get_enum (&value)); - break; - case G_TYPE_BOOLEAN: - gconf_value = gconf_value_new (GCONF_VALUE_BOOL); - gconf_value_set_bool (gconf_value, - g_value_get_boolean (&value)); - break; - case G_TYPE_DOUBLE: - gconf_value = gconf_value_new (GCONF_VALUE_FLOAT); -#ifdef HAVE_CORBA_GCONF - /* FIXME we cast to a float explicitly as CORBA GConf - * uses doubles in its API, but treats them as floats - * when transporting them over CORBA. See #322837 */ - gconf_value_set_float (gconf_value, - (float) g_value_get_double (&value)); -#else - gconf_value_set_float (gconf_value, - g_value_get_double (&value)); -#endif - break; - case G_TYPE_FLOAT: - gconf_value = gconf_value_new (GCONF_VALUE_FLOAT); - gconf_value_set_float (gconf_value, - g_value_get_float (&value)); - break; - default: - if (g_type_is_a (value.g_type, G_TYPE_ENUM)) { - gconf_value = gconf_value_new (GCONF_VALUE_INT); - gconf_value_set_int (gconf_value, - g_value_get_enum (&value)); - } else { - g_warning ("prop_binding_sync_prop_to_pref: " - "Unhandled value type '%s'.\n", - g_type_name (value.g_type)); - - goto done; - } - - break; - } - - /* Set to GConf */ - gconf_client_set (bridge->client, binding->key, gconf_value, NULL); - - /* Store until change notification comes in, so that we are able - * to ignore it */ - binding->val_changes = g_slist_append (binding->val_changes, - gconf_value); - -done: - g_value_unset (&value); -} - -/* Called when a GConf value bound to an object property has changed */ -static void -prop_binding_pref_changed (GConfClient *client, - guint cnxn_id, - GConfEntry *entry, - gpointer user_data) -{ - GConfValue *gconf_value; - PropBinding *binding; - GSList *l; - - gconf_value = gconf_entry_get_value (entry); - if (!gconf_value) - return; /* NULL means that the value has been unset */ - - binding = (PropBinding *) user_data; - - /* Check that this notification is not caused by sync_prop_to_pref() */ - l = g_slist_find_custom (binding->val_changes, - gconf_value, - (GCompareFunc) gconf_value_compare); - if (l) { - gconf_value_free (l->data); - - binding->val_changes = g_slist_delete_link - (binding->val_changes, l); - - return; - } - - prop_binding_sync_pref_to_prop (binding, gconf_value); -} - -/* Performs a scheduled prop-to-pref sync for a prop binding in - * delay mode */ -static gboolean -prop_binding_perform_scheduled_sync (PropBinding *binding) -{ - prop_binding_sync_prop_to_pref (binding); - - binding->sync_timeout_id = 0; - - g_object_unref (binding->object); - - return FALSE; -} - -#define PROP_BINDING_SYNC_DELAY 100 /* Delay for bindings with "delayed" - set to TRUE, in ms */ - -/* Called when an object property has changed */ -static void -prop_binding_prop_changed (GObject *object, - GParamSpec *param_spec, - PropBinding *binding) -{ - if (binding->delayed_mode) { - /* Just schedule a sync */ - if (binding->sync_timeout_id == 0) { - /* We keep a reference on the object as long as - * we haven't synced yet to make sure we don't - * lose any data */ - g_object_ref (binding->object); - - binding->sync_timeout_id = - g_timeout_add - (PROP_BINDING_SYNC_DELAY, - (GSourceFunc) - prop_binding_perform_scheduled_sync, - binding); - } - } else { - /* Directly sync */ - prop_binding_sync_prop_to_pref (binding); - } -} - -/* Called when an object is destroyed */ -static void -prop_binding_object_destroyed (gpointer user_data, - GObject *where_the_object_was) -{ - PropBinding *binding; - - binding = (PropBinding *) user_data; - binding->object = NULL; /* Don't do anything with the object - at unbind() */ - - g_hash_table_remove (bridge->bindings, - GUINT_TO_POINTER (binding->id)); -} - -/** - * gconf_bridge_bind_property_full - * @bridge: A #GConfBridge - * @key: A GConf key to be bound - * @object: A #GObject - * @prop: The property of @object to be bound - * @delayed_sync: TRUE if there should be a delay between property changes - * and syncs to GConf. Set to TRUE when binding to a rapidly-changing - * property, for example the "value" property on a #GtkAdjustment. - * - * Binds @key to @prop, causing them to have the same value at all times. - * - * The types of @key and @prop should be compatible. Floats and doubles, and - * ints, uints, longs, unlongs, int64s, uint64s, chars, uchars and enums - * can be matched up. Booleans and strings can only be matched to their - * respective types. - * - * On calling this function the current value of @key will be set to @prop. - * - * Return value: The ID of the new binding. - **/ -guint -gconf_bridge_bind_property_full (GConfBridge *bridge, - const char *key, - GObject *object, - const char *prop, - gboolean delayed_sync) -{ - GParamSpec *pspec; - PropBinding *binding; - char *signal; - GConfValue *val; - - g_return_val_if_fail (bridge != NULL, 0); - g_return_val_if_fail (key != NULL, 0); - g_return_val_if_fail (G_IS_OBJECT (object), 0); - g_return_val_if_fail (prop != NULL, 0); - - /* First, try to fetch the propertys GParamSpec off the object */ - pspec = g_object_class_find_property - (G_OBJECT_GET_CLASS (object), prop); - if (G_UNLIKELY (pspec == NULL)) { - g_warning ("gconf_bridge_bind_property_full: A property \"%s\" " - "was not found. Please make sure you are passing " - "the right property name.", prop); - - return 0; - } - - /* GParamSpec found: All good, create new binding. */ - binding = g_new (PropBinding, 1); - - binding->type = BINDING_PROP; - binding->id = new_id (); - binding->delayed_mode = delayed_sync; - binding->val_changes = NULL; - binding->key = g_strdup (key); - binding->object = object; - binding->prop = pspec; - binding->sync_timeout_id = 0; - - /* Watch GConf key */ - binding->val_notify_id = - gconf_client_notify_add (bridge->client, key, - prop_binding_pref_changed, - binding, NULL, NULL); - - /* Connect to property change notifications */ - signal = g_strconcat ("notify::", prop, NULL); - binding->prop_notify_id = - g_signal_connect (object, signal, - G_CALLBACK (prop_binding_prop_changed), - binding); - g_free (signal); - - /* Sync object to value from GConf, if set */ - val = gconf_client_get (bridge->client, key, NULL); - if (val) { - prop_binding_sync_pref_to_prop (binding, val); - gconf_value_free (val); - } - - /* Handle case where watched object gets destroyed */ - g_object_weak_ref (object, - prop_binding_object_destroyed, binding); - - /* Insert binding */ - g_hash_table_insert (bridge->bindings, - GUINT_TO_POINTER (binding->id), binding); - - /* Done */ - return binding->id; -} - -/* Unbinds a property binding */ -static void -prop_binding_unbind (PropBinding *binding) -{ - if (binding->delayed_mode && binding->sync_timeout_id > 0) { - /* Perform any scheduled syncs */ - g_source_remove (binding->sync_timeout_id); - - /* The object will still be around as we have - * a reference */ - prop_binding_perform_scheduled_sync (binding); - } - - gconf_client_notify_remove (bridge->client, - binding->val_notify_id); - g_free (binding->key); - - while (binding->val_changes) { - gconf_value_free (binding->val_changes->data); - - binding->val_changes = g_slist_delete_link - (binding->val_changes, binding->val_changes); - } - - /* The object might have been destroyed .. */ - if (binding->object) { - g_signal_handler_disconnect (binding->object, - binding->prop_notify_id); - - g_object_weak_unref (binding->object, - prop_binding_object_destroyed, binding); - } -} - -/* - * Window bindings - */ - -/* Performs a scheduled dimensions-to-prefs sync for a window binding */ -static gboolean -window_binding_perform_scheduled_sync (WindowBinding *binding) -{ - if (binding->bind_size) { - int width, height; - char *key; - GdkWindowState state; - - state = gdk_window_get_state (GTK_WIDGET (binding->window)->window); - - if (state & GDK_WINDOW_STATE_MAXIMIZED) { - key = g_strconcat (binding->key_prefix, "_maximized", NULL); - gconf_client_set_bool (bridge->client, key, TRUE, NULL); - g_free (key); - } else { - gtk_window_get_size (binding->window, &width, &height); - - key = g_strconcat (binding->key_prefix, "_width", NULL); - gconf_client_set_int (bridge->client, key, width, NULL); - g_free (key); - - key = g_strconcat (binding->key_prefix, "_height", NULL); - gconf_client_set_int (bridge->client, key, height, NULL); - g_free (key); - - key = g_strconcat (binding->key_prefix, "_maximized", NULL); - gconf_client_set_bool (bridge->client, key, FALSE, NULL); - g_free (key); - } - } - - if (binding->bind_pos) { - int x, y; - char *key; - - gtk_window_get_position (binding->window, &x, &y); - - key = g_strconcat (binding->key_prefix, "_x", NULL); - gconf_client_set_int (bridge->client, key, x, NULL); - g_free (key); - - key = g_strconcat (binding->key_prefix, "_y", NULL); - gconf_client_set_int (bridge->client, key, y, NULL); - g_free (key); - } - - binding->sync_timeout_id = 0; - - return FALSE; -} - -#define WINDOW_BINDING_SYNC_DELAY 1000 /* Delay before syncing new window - dimensions to GConf, in ms */ - -/* Called when the window han been resized or moved */ -static gboolean -window_binding_configure_event_cb (GtkWindow *window, - GdkEventConfigure *event, - WindowBinding *binding) -{ - /* Schedule a sync */ - if (binding->sync_timeout_id == 0) { - binding->sync_timeout_id = - g_timeout_add (WINDOW_BINDING_SYNC_DELAY, - (GSourceFunc) - window_binding_perform_scheduled_sync, - binding); - } - - return FALSE; -} - -/* Called when the window state is being changed */ -static gboolean -window_binding_state_event_cb (GtkWindow *window, - GdkEventWindowState *event, - WindowBinding *binding) -{ - window_binding_perform_scheduled_sync (binding); - - return FALSE; -} - -/* Called when the window is being unmapped */ -static gboolean -window_binding_unmap_cb (GtkWindow *window, - WindowBinding *binding) -{ - /* Force sync */ - if (binding->sync_timeout_id > 0) - g_source_remove (binding->sync_timeout_id); - - window_binding_perform_scheduled_sync (binding); - - return FALSE; -} - -/* Called when a window is destroyed */ -static void -window_binding_window_destroyed (gpointer user_data, - GObject *where_the_object_was) -{ - WindowBinding *binding; - - binding = (WindowBinding *) user_data; - binding->window = NULL; /* Don't do anything with the window - at unbind() */ - - g_hash_table_remove (bridge->bindings, - GUINT_TO_POINTER (binding->id)); -} - -/** - * gconf_bridge_bind_window - * @bridge: A #GConfBridge - * @key_prefix: The prefix of the GConf keys - * @window: A #GtkWindow - * @bind_size: TRUE to bind the size of @window - * @bind_pos: TRUE to bind the position of @window - * - * On calling this function @window will be resized to the values - * specified by "@key_prefix<!-- -->_width" and "@key_prefix<!-- -->_height" - * and maximixed if "@key_prefix<!-- -->_maximized is TRUE if - * @bind_size is TRUE, and moved to the values specified by - * "@key_prefix<!-- -->_x" and "@key_prefix<!-- -->_y" if @bind_pos is TRUE. - * The respective GConf values will be updated when the window is resized - * and/or moved. - * - * Return value: The ID of the new binding. - **/ -guint -gconf_bridge_bind_window (GConfBridge *bridge, - const char *key_prefix, - GtkWindow *window, - gboolean bind_size, - gboolean bind_pos) -{ - WindowBinding *binding; - - g_return_val_if_fail (bridge != NULL, 0); - g_return_val_if_fail (key_prefix != NULL, 0); - g_return_val_if_fail (GTK_IS_WINDOW (window), 0); - - /* Create new binding. */ - binding = g_new (WindowBinding, 1); - - binding->type = BINDING_WINDOW; - binding->id = new_id (); - binding->bind_size = bind_size; - binding->bind_pos = bind_pos; - binding->key_prefix = g_strdup (key_prefix); - binding->window = window; - binding->sync_timeout_id = 0; - - /* Set up GConf keys & sync window to GConf values */ - if (bind_size) { - char *key; - GConfValue *width_val, *height_val, *maximized_val; - - key = g_strconcat (key_prefix, "_width", NULL); - width_val = gconf_client_get (bridge->client, key, NULL); - g_free (key); - - key = g_strconcat (key_prefix, "_height", NULL); - height_val = gconf_client_get (bridge->client, key, NULL); - g_free (key); - - key = g_strconcat (key_prefix, "_maximized", NULL); - maximized_val = gconf_client_get (bridge->client, key, NULL); - g_free (key); - - if (width_val && height_val) { - gtk_window_resize (window, - gconf_value_get_int (width_val), - gconf_value_get_int (height_val)); - - gconf_value_free (width_val); - gconf_value_free (height_val); - } else if (width_val) { - gconf_value_free (width_val); - } else if (height_val) { - gconf_value_free (height_val); - } - - if (maximized_val) { - if (gconf_value_get_bool (maximized_val)) { - gtk_window_maximize (window); - } - gconf_value_free (maximized_val); - } - } - - if (bind_pos) { - char *key; - GConfValue *x_val, *y_val; - - key = g_strconcat (key_prefix, "_x", NULL); - x_val = gconf_client_get (bridge->client, key, NULL); - g_free (key); - - key = g_strconcat (key_prefix, "_y", NULL); - y_val = gconf_client_get (bridge->client, key, NULL); - g_free (key); - - if (x_val && y_val) { - gtk_window_move (window, - gconf_value_get_int (x_val), - gconf_value_get_int (y_val)); - - gconf_value_free (x_val); - gconf_value_free (y_val); - } else if (x_val) { - gconf_value_free (x_val); - } else if (y_val) { - gconf_value_free (y_val); - } - } - - /* Connect to window size change notifications */ - binding->configure_event_id = - g_signal_connect (window, - "configure-event", - G_CALLBACK - (window_binding_configure_event_cb), - binding); - - binding->configure_event_id = - g_signal_connect (window, - "window_state_event", - G_CALLBACK - (window_binding_state_event_cb), - binding); - binding->unmap_id = - g_signal_connect (window, - "unmap", - G_CALLBACK (window_binding_unmap_cb), - binding); - - /* Handle case where window gets destroyed */ - g_object_weak_ref (G_OBJECT (window), - window_binding_window_destroyed, binding); - - /* Insert binding */ - g_hash_table_insert (bridge->bindings, - GUINT_TO_POINTER (binding->id), binding); - - /* Done */ - return binding->id; -} - -/* Unbinds a window binding */ -static void -window_binding_unbind (WindowBinding *binding) -{ - if (binding->sync_timeout_id > 0) - g_source_remove (binding->sync_timeout_id); - - g_free (binding->key_prefix); - - /* The window might have been destroyed .. */ - if (binding->window) { - g_signal_handler_disconnect (binding->window, - binding->configure_event_id); - g_signal_handler_disconnect (binding->window, - binding->unmap_id); - - g_object_weak_unref (G_OBJECT (binding->window), - window_binding_window_destroyed, binding); - } -} - -/* - * List store bindings - */ - -/* Fills a GtkListStore with the string list from @value */ -static void -list_store_binding_sync_pref_to_store (ListStoreBinding *binding, - GConfValue *value) -{ - GSList *list, *l; - GtkTreeIter iter; - - /* Make sure we don't enter an infinite synchronizing loop */ - g_signal_handler_block (binding->list_store, - binding->row_inserted_id); - g_signal_handler_block (binding->list_store, - binding->row_deleted_id); - - gtk_list_store_clear (binding->list_store); - - list = gconf_value_get_list (value); - for (l = list; l; l = l->next) { - GConfValue *l_value; - const char *string; - - l_value = (GConfValue *) l->data; - string = gconf_value_get_string (l_value); - - gtk_list_store_insert_with_values (binding->list_store, - &iter, -1, - 0, string, - -1); - } - - g_signal_handler_unblock (binding->list_store, - binding->row_inserted_id); - g_signal_handler_unblock (binding->list_store, - binding->row_deleted_id); -} - -/* Sets a GConf value to the contents of a GtkListStore */ -static gboolean -list_store_binding_sync_store_to_pref (ListStoreBinding *binding) -{ - GtkTreeModel *tree_model; - GtkTreeIter iter; - GSList *list; - int res; - GConfValue *gconf_value; - - tree_model = GTK_TREE_MODEL (binding->list_store); - - /* Build list */ - list = NULL; - res = gtk_tree_model_get_iter_first (tree_model, &iter); - while (res) { - char *string; - GConfValue *tmp_value; - - gtk_tree_model_get (tree_model, &iter, - 0, &string, -1); - - tmp_value = gconf_value_new (GCONF_VALUE_STRING); - gconf_value_set_string (tmp_value, string); - - list = g_slist_append (list, tmp_value); - - res = gtk_tree_model_iter_next (tree_model, &iter); - } - - /* Create value */ - gconf_value = gconf_value_new (GCONF_VALUE_LIST); - gconf_value_set_list_type (gconf_value, GCONF_VALUE_STRING); - gconf_value_set_list_nocopy (gconf_value, list); - - /* Set */ - gconf_client_set (bridge->client, binding->key, gconf_value, NULL); - - /* Store until change notification comes in, so that we are able - * to ignore it */ - binding->val_changes = g_slist_append (binding->val_changes, - gconf_value); - - binding->sync_idle_id = 0; - - g_object_unref (binding->list_store); - - return FALSE; -} - -/* Pref changed: sync */ -static void -list_store_binding_pref_changed (GConfClient *client, - guint cnxn_id, - GConfEntry *entry, - gpointer user_data) -{ - GConfValue *gconf_value; - ListStoreBinding *binding; - GSList *l; - - gconf_value = gconf_entry_get_value (entry); - if (!gconf_value) - return; /* NULL means that the value has been unset */ - - binding = (ListStoreBinding *) user_data; - - /* Check that this notification is not caused by - * sync_store_to_pref() */ - l = g_slist_find_custom (binding->val_changes, - gconf_value, - (GCompareFunc) gconf_value_compare); - if (l) { - gconf_value_free (l->data); - - binding->val_changes = g_slist_delete_link - (binding->val_changes, l); - - return; - } - - list_store_binding_sync_pref_to_store (binding, gconf_value); -} - -/* Called when an object is destroyed */ -static void -list_store_binding_store_destroyed (gpointer user_data, - GObject *where_the_object_was) -{ - ListStoreBinding *binding; - - binding = (ListStoreBinding *) user_data; - binding->list_store = NULL; /* Don't do anything with the store - at unbind() */ - - g_hash_table_remove (bridge->bindings, - GUINT_TO_POINTER (binding->id)); -} - -/* List store changed: Sync */ -static void -list_store_binding_store_changed_cb (ListStoreBinding *binding) -{ - if (binding->sync_idle_id == 0) { - g_object_ref (binding->list_store); - - binding->sync_idle_id = g_idle_add - ((GSourceFunc) list_store_binding_sync_store_to_pref, - binding); - } -} - -/** - * gconf_bridge_bind_string_list_store - * @bridge: A #GConfBridge - * @key: A GConf key to be bound - * @list_store: A #GtkListStore - * - * On calling this function single string column #GtkListStore @list_store - * will be kept synchronized with the GConf string list value pointed to by - * @key. On calling this function @list_store will be populated with the - * strings specified by the value of @key. - * - * Return value: The ID of the new binding. - **/ -guint -gconf_bridge_bind_string_list_store (GConfBridge *bridge, - const char *key, - GtkListStore *list_store) -{ - GtkTreeModel *tree_model; - gboolean have_one_column, is_string_column; - ListStoreBinding *binding; - GConfValue *val; - - g_return_val_if_fail (bridge != NULL, 0); - g_return_val_if_fail (key != NULL, 0); - g_return_val_if_fail (GTK_IS_LIST_STORE (list_store), 0); - - /* Check list store suitability */ - tree_model = GTK_TREE_MODEL (list_store); - have_one_column = (gtk_tree_model_get_n_columns (tree_model) == 1); - is_string_column = (gtk_tree_model_get_column_type - (tree_model, 0) == G_TYPE_STRING); - if (G_UNLIKELY (!have_one_column || !is_string_column)) { - g_warning ("gconf_bridge_bind_string_list_store: Only " - "GtkListStores with exactly one string column are " - "supported."); - - return 0; - } - - /* Create new binding. */ - binding = g_new (ListStoreBinding, 1); - - binding->type = BINDING_LIST_STORE; - binding->id = new_id (); - binding->key = g_strdup (key); - binding->val_changes = NULL; - binding->list_store = list_store; - binding->sync_idle_id = 0; - - /* Watch GConf key */ - binding->val_notify_id = - gconf_client_notify_add (bridge->client, key, - list_store_binding_pref_changed, - binding, NULL, NULL); - - /* Connect to ListStore change notifications */ - binding->row_inserted_id = - g_signal_connect_swapped (list_store, "row-inserted", - G_CALLBACK - (list_store_binding_store_changed_cb), - binding); - binding->row_changed_id = - g_signal_connect_swapped (list_store, "row-inserted", - G_CALLBACK - (list_store_binding_store_changed_cb), - binding); - binding->row_deleted_id = - g_signal_connect_swapped (list_store, "row-inserted", - G_CALLBACK - (list_store_binding_store_changed_cb), - binding); - binding->rows_reordered_id = - g_signal_connect_swapped (list_store, "row-inserted", - G_CALLBACK - (list_store_binding_store_changed_cb), - binding); - - /* Sync object to value from GConf, if set */ - val = gconf_client_get (bridge->client, key, NULL); - if (val) { - list_store_binding_sync_pref_to_store (binding, val); - gconf_value_free (val); - } - - /* Handle case where watched object gets destroyed */ - g_object_weak_ref (G_OBJECT (list_store), - list_store_binding_store_destroyed, binding); - - /* Insert binding */ - g_hash_table_insert (bridge->bindings, - GUINT_TO_POINTER (binding->id), binding); - - /* Done */ - return binding->id; -} - -/* Unbinds a list store binding */ -static void -list_store_binding_unbind (ListStoreBinding *binding) -{ - /* Perform any scheduled syncs */ - if (binding->sync_idle_id > 0) { - g_source_remove (binding->sync_idle_id); - - /* The store will still be around as we added a reference */ - list_store_binding_sync_store_to_pref (binding); - } - - g_free (binding->key); - - while (binding->val_changes) { - gconf_value_free (binding->val_changes->data); - - binding->val_changes = g_slist_delete_link - (binding->val_changes, binding->val_changes); - } - - /* The store might have been destroyed .. */ - if (binding->list_store) { - g_signal_handler_disconnect (binding->list_store, - binding->row_inserted_id); - g_signal_handler_disconnect (binding->list_store, - binding->row_changed_id); - g_signal_handler_disconnect (binding->list_store, - binding->row_deleted_id); - g_signal_handler_disconnect (binding->list_store, - binding->rows_reordered_id); - - g_object_weak_unref (G_OBJECT (binding->list_store), - list_store_binding_store_destroyed, - binding); - } -} - -/* - * Generic unbinding - */ - -/* Unbinds a binding */ -static void -unbind (Binding *binding) -{ - /* Call specialized unbinding function */ - switch (binding->type) { - case BINDING_PROP: - prop_binding_unbind ((PropBinding *) binding); - break; - case BINDING_WINDOW: - window_binding_unbind ((WindowBinding *) binding); - break; - case BINDING_LIST_STORE: - list_store_binding_unbind ((ListStoreBinding *) binding); - break; - default: - g_warning ("Unknown binding type '%d'\n", binding->type); - break; - } - - g_free (binding); -} - -/** - * gconf_bridge_unbind - * @bridge: A #GConfBridge - * @binding_id: The ID of the binding to be removed - * - * Removes the binding with ID @binding_id. - **/ -void -gconf_bridge_unbind (GConfBridge *bridge, - guint binding_id) -{ - g_return_if_fail (bridge != NULL); - g_return_if_fail (binding_id > 0); - - /* This will trigger the hash tables value destruction - * function, which will take care of further cleanup */ - g_hash_table_remove (bridge->bindings, - GUINT_TO_POINTER (binding_id)); -} - -/* - * Error handling - */ - -/* This is the same dialog as used in eel */ -static void -error_handler (GConfClient *client, - GError *error) -{ - static gboolean shown_dialog = FALSE; - - g_warning ("GConf error:\n %s", error->message); - - if (!shown_dialog) { - char *message; - GtkWidget *dlg; - - message = g_strdup_printf (_("GConf error: %s"), - error->message); - dlg = gtk_message_dialog_new (NULL, 0, - GTK_MESSAGE_ERROR, - GTK_BUTTONS_OK, - message); - g_free (message); - - gtk_message_dialog_format_secondary_text - (GTK_MESSAGE_DIALOG (dlg), - _("All further errors shown only on terminal.")); - gtk_window_set_title (GTK_WINDOW (dlg), ""); - - gtk_dialog_run (GTK_DIALOG (dlg)); - - gtk_widget_destroy (dlg); - - shown_dialog = TRUE; - } -} - -/** - * gconf_bridge_install_default_error_handler - * - * Sets up the default error handler. Any unhandled GConf errors will - * automatically be handled by presenting the user an error dialog. - **/ -void -gconf_bridge_install_default_error_handler (void) -{ - gconf_client_set_global_default_error_handler (error_handler); -} |