gnome-control-center/panels/search/cc-search-panel.c

642 lines
19 KiB
C

/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
*
* Copyright (C) 2012 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.
*
* Author: Cosimo Cecchi <cosimoc@gnome.org>
*/
#include "cc-search-panel.h"
#include "cc-search-locations-dialog.h"
#include "cc-search-resources.h"
#include <egg-list-box/egg-list-box.h>
#include <gio/gdesktopappinfo.h>
#include <glib/gi18n.h>
CC_PANEL_REGISTER (CcSearchPanel, cc_search_panel)
#define WID(s) GTK_WIDGET (gtk_builder_get_object (self->priv->builder, s))
struct _CcSearchPanelPrivate
{
GtkBuilder *builder;
GtkWidget *list_box;
GtkWidget *up_button;
GtkWidget *down_button;
GSettings *search_settings;
GHashTable *sort_order;
GtkWidget *locations_dialog;
};
#define SHELL_PROVIDER_GROUP "Shell Search Provider"
static gint
list_sort_func (gconstpointer a,
gconstpointer b,
gpointer user_data)
{
CcSearchPanel *self = user_data;
GtkWidget *widget_a, *widget_b;
GAppInfo *app_a, *app_b;
const gchar *id_a, *id_b;
gint idx_a, idx_b, num_sorted;
gpointer lookup;
widget_a = GTK_WIDGET (a);
widget_b = GTK_WIDGET (b);
app_a = g_object_get_data (G_OBJECT (widget_a), "app-info");
app_b = g_object_get_data (G_OBJECT (widget_b), "app-info");
id_a = g_app_info_get_id (app_a);
id_b = g_app_info_get_id (app_b);
/* find the index of the application in the GSettings preferences */
idx_a = -1;
idx_b = -1;
lookup = g_hash_table_lookup (self->priv->sort_order, id_a);
if (lookup)
idx_a = GPOINTER_TO_INT (lookup) - 1;
lookup = g_hash_table_lookup (self->priv->sort_order, id_b);
if (lookup)
idx_b = GPOINTER_TO_INT (lookup) - 1;
/* if neither app is found, use alphabetical order */
if ((idx_a == -1) && (idx_b == -1))
return g_utf8_collate (g_app_info_get_name (app_a), g_app_info_get_name (app_b));
num_sorted = g_hash_table_size (self->priv->sort_order) - 1;
if (num_sorted > 1)
{
/* if app_a is the last, it goes after everything */
if (idx_a == num_sorted)
return 1;
/* if app_b is the last, it goes after everything */
else if (idx_b == num_sorted)
return -1;
}
/* if app_a isn't found, it's sorted after app_b */
if (idx_a == -1)
return 1;
/* if app_b isn't found, it's sorted after app_a */
if (idx_b == -1)
return -1;
/* finally, if both apps are found, return their order in the list */
return (idx_a - idx_b);
}
static void
search_panel_invalidate_button_state (CcSearchPanel *self)
{
GList *children;
gboolean is_first, is_last;
GtkWidget *child;
child = egg_list_box_get_selected_child (EGG_LIST_BOX (self->priv->list_box));
children = gtk_container_get_children (GTK_CONTAINER (self->priv->list_box));
if (!child || !children)
return;
is_first = (child == g_list_first (children)->data);
is_last = (child == g_list_last (children)->data);
gtk_widget_set_sensitive (self->priv->up_button, !is_first);
gtk_widget_set_sensitive (self->priv->down_button, !is_last);
g_list_free (children);
}
static void
search_panel_invalidate_sort_order (CcSearchPanel *self)
{
gchar **sort_order;
gint idx;
g_hash_table_remove_all (self->priv->sort_order);
sort_order = g_settings_get_strv (self->priv->search_settings, "sort-order");
for (idx = 0; sort_order[idx] != NULL; idx++)
g_hash_table_insert (self->priv->sort_order, g_strdup (sort_order[idx]), GINT_TO_POINTER (idx + 1));
egg_list_box_resort (EGG_LIST_BOX (self->priv->list_box));
g_strfreev (sort_order);
search_panel_invalidate_button_state (self);
}
static gint
propagate_compare_func (gconstpointer a,
gconstpointer b,
gpointer user_data)
{
CcSearchPanel *self = user_data;
const gchar *key_a = a, *key_b = b;
gint idx_a, idx_b;
idx_a = GPOINTER_TO_INT (g_hash_table_lookup (self->priv->sort_order, key_a));
idx_b = GPOINTER_TO_INT (g_hash_table_lookup (self->priv->sort_order, key_b));
return (idx_a - idx_b);
}
static void
search_panel_propagate_sort_order (CcSearchPanel *self)
{
GList *keys, *l;
GPtrArray *sort_order;
sort_order = g_ptr_array_new ();
keys = g_hash_table_get_keys (self->priv->sort_order);
keys = g_list_sort_with_data (keys, propagate_compare_func, self);
for (l = keys; l != NULL; l = l->next)
g_ptr_array_add (sort_order, l->data);
g_ptr_array_add (sort_order, NULL);
g_settings_set_strv (self->priv->search_settings, "sort-order",
(const gchar **) sort_order->pdata);
g_ptr_array_unref (sort_order);
g_list_free (keys);
}
static void
search_panel_set_no_providers (CcSearchPanel *self)
{
GtkWidget *w;
/* center the list box in the scrolled window */
gtk_widget_set_valign (self->priv->list_box, GTK_ALIGN_CENTER);
w = gtk_label_new (_("No applications found"));
gtk_widget_show (w);
gtk_container_add (GTK_CONTAINER (self->priv->list_box), w);
}
static void
search_panel_move_selected (CcSearchPanel *self,
gboolean down)
{
GtkWidget *box, *other_box;
GAppInfo *app_info, *other_app_info;
const gchar *app_id, *other_app_id;
gint idx, other_idx;
GList *children, *l;
box = egg_list_box_get_selected_child (EGG_LIST_BOX (self->priv->list_box));
app_info = g_object_get_data (G_OBJECT (box), "app-info");
app_id = g_app_info_get_id (app_info);
other_app_id = NULL;
children = gtk_container_get_children (GTK_CONTAINER (self->priv->list_box));
l = g_list_find (children, box);
if (l != NULL)
{
other_box = down ? g_list_next (l)->data : g_list_previous (l)->data;
other_app_info = g_object_get_data (G_OBJECT (other_box), "app-info");
other_app_id = g_app_info_get_id (other_app_info);
}
other_idx = GPOINTER_TO_INT (g_hash_table_lookup (self->priv->sort_order, app_id));
idx = down ? (other_idx + 1) : (other_idx - 1);
if (other_app_id != NULL)
g_hash_table_replace (self->priv->sort_order, g_strdup (other_app_id), GINT_TO_POINTER (other_idx));
g_hash_table_replace (self->priv->sort_order, g_strdup (app_id), GINT_TO_POINTER (idx));
search_panel_propagate_sort_order (self);
g_list_free (children);
}
static void
down_button_clicked (GtkWidget *widget,
CcSearchPanel *self)
{
search_panel_move_selected (self, TRUE);
}
static void
up_button_clicked (GtkWidget *widget,
CcSearchPanel *self)
{
search_panel_move_selected (self, FALSE);
}
static void
settings_button_clicked (GtkWidget *widget,
gpointer user_data)
{
CcSearchPanel *self = user_data;
if (self->priv->locations_dialog == NULL)
{
self->priv->locations_dialog = cc_search_locations_dialog_new (self);
g_object_add_weak_pointer (G_OBJECT (self->priv->locations_dialog),
(gpointer *) &self->priv->locations_dialog);
}
gtk_window_present (GTK_WINDOW (self->priv->locations_dialog));
}
static GVariant *
switch_settings_mapping_set (const GValue *value,
const GVariantType *expected_type,
gpointer user_data)
{
GtkWidget *box = user_data;
CcSearchPanel *self = g_object_get_data (G_OBJECT (box), "self");
GAppInfo *app_info = g_object_get_data (G_OBJECT (box), "app-info");
gchar **disabled;
GPtrArray *new_disabled;
gint idx;
gboolean remove, found;
GVariant *variant;
remove = g_value_get_boolean (value);
found = FALSE;
new_disabled = g_ptr_array_new_with_free_func (g_free);
disabled = g_settings_get_strv (self->priv->search_settings, "disabled");
for (idx = 0; disabled[idx] != NULL; idx++)
{
if (g_strcmp0 (disabled[idx], g_app_info_get_id (app_info)) == 0)
{
found = TRUE;
if (remove)
continue;
}
g_ptr_array_add (new_disabled, g_strdup (disabled[idx]));
}
if (!found && !remove)
g_ptr_array_add (new_disabled, g_strdup (g_app_info_get_id (app_info)));
g_ptr_array_add (new_disabled, NULL);
variant = g_variant_new_strv ((const gchar **) new_disabled->pdata, -1);
g_ptr_array_unref (new_disabled);
g_strfreev (disabled);
return variant;
}
static gboolean
switch_settings_mapping_get (GValue *value,
GVariant *variant,
gpointer user_data)
{
GtkWidget *box = user_data;
GAppInfo *app_info = g_object_get_data (G_OBJECT (box), "app-info");
const gchar **disabled;
gint idx;
gboolean found;
found = FALSE;
disabled = g_variant_get_strv (variant, NULL);
for (idx = 0; disabled[idx] != NULL; idx++)
{
if (g_strcmp0 (disabled[idx], g_app_info_get_id (app_info)) == 0)
{
found = TRUE;
break;
}
}
g_value_set_boolean (value, !found);
return TRUE;
}
static void
search_panel_add_one_app_info (CcSearchPanel *self,
GAppInfo *app_info)
{
GtkWidget *box, *w;
GIcon *icon;
/* reset valignment of the list box */
gtk_widget_set_valign (self->priv->list_box, GTK_ALIGN_FILL);
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_widget_set_hexpand (box, TRUE);
gtk_container_set_border_width (GTK_CONTAINER (box), 6);
g_object_set_data_full (G_OBJECT (box), "app-info",
g_object_ref (app_info), g_object_unref);
g_object_set_data (G_OBJECT (box), "self", self);
gtk_container_add (GTK_CONTAINER (self->priv->list_box), box);
icon = g_app_info_get_icon (app_info);
if (icon == NULL)
icon = g_themed_icon_new ("application-x-executable");
else
g_object_ref (icon);
w = gtk_image_new_from_gicon (icon, GTK_ICON_SIZE_DIALOG);
gtk_container_add (GTK_CONTAINER (box), w);
g_object_unref (icon);
w = gtk_label_new (g_app_info_get_name (app_info));
gtk_container_add (GTK_CONTAINER (box), w);
w = gtk_switch_new ();
gtk_widget_set_valign (w, GTK_ALIGN_CENTER);
gtk_box_pack_end (GTK_BOX (box), w, FALSE, FALSE, 0);
g_settings_bind_with_mapping (self->priv->search_settings, "disabled",
w, "active",
G_SETTINGS_BIND_DEFAULT,
switch_settings_mapping_get,
switch_settings_mapping_set,
box, NULL);
gtk_widget_show_all (box);
}
static void
search_panel_add_one_provider (CcSearchPanel *self,
GFile *provider)
{
gchar *path, *desktop_id;
GKeyFile *keyfile;
GAppInfo *app_info;
GError *error = NULL;
path = g_file_get_path (provider);
keyfile = g_key_file_new ();
g_key_file_load_from_file (keyfile, path, G_KEY_FILE_NONE, &error);
if (error != NULL)
{
g_warning ("Error loading %s: %s - search provider will be ignored",
path, error->message);
goto out;
}
if (!g_key_file_has_group (keyfile, SHELL_PROVIDER_GROUP))
goto out;
desktop_id = g_key_file_get_string (keyfile, SHELL_PROVIDER_GROUP,
"DesktopId", &error);
if (error != NULL)
{
g_warning ("Unable to read desktop ID from %s: %s - search provider will be ignored",
path, error->message);
goto out;
}
app_info = G_APP_INFO (g_desktop_app_info_new (desktop_id));
g_free (desktop_id);
if (app_info == NULL)
goto out;
search_panel_add_one_app_info (self, app_info);
g_object_unref (app_info);
out:
g_free (path);
g_clear_error (&error);
g_key_file_unref (keyfile);
}
static void
next_search_provider_ready (GObject *source,
GAsyncResult *res,
gpointer user_data)
{
CcSearchPanel *self = user_data;
GFile *providers_location, *provider;
GList *files;
GError *error = NULL;
gchar *path;
files = g_file_enumerator_next_files_finish (G_FILE_ENUMERATOR (source),
res, &error);
providers_location = g_file_enumerator_get_container (G_FILE_ENUMERATOR (source));
if (error != NULL)
{
path = g_file_get_path (providers_location);
g_warning ("Error reading from %s: %s - search providers might be missing from the panel",
path, error->message);
g_error_free (error);
g_free (path);
}
if (files != NULL)
{
provider = g_file_get_child (providers_location, g_file_info_get_name (files->data));
search_panel_add_one_provider (self, provider);
g_object_unref (provider);
g_file_enumerator_next_files_async (G_FILE_ENUMERATOR (source), 1,
G_PRIORITY_DEFAULT, NULL,
next_search_provider_ready, self);
}
else
{
/* propagate a write to GSettings, to make sure we always have
* all the providers in the list.
*/
search_panel_propagate_sort_order (self);
}
g_list_free_full (files, g_object_unref);
}
static void
enumerate_search_providers_ready (GObject *source,
GAsyncResult *res,
gpointer user_data)
{
CcSearchPanel *self = user_data;
GFileEnumerator *enumerator;
GError *error = NULL;
gchar *path;
enumerator = g_file_enumerate_children_finish (G_FILE (source), res, &error);
if (error != NULL)
{
path = g_file_get_path (G_FILE (source));
if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND))
g_warning ("Error opening %s: %s - search provider configuration won't be possible",
path, error->message);
search_panel_set_no_providers (self);
g_error_free (error);
return;
}
g_file_enumerator_next_files_async (enumerator, 1,
G_PRIORITY_DEFAULT, NULL,
next_search_provider_ready, self);
g_object_unref (enumerator);
}
static void
populate_search_providers (CcSearchPanel *self)
{
GFile *providers_location;
providers_location = g_file_new_for_path (DATADIR "/gnome-shell/search-providers");
g_file_enumerate_children_async (providers_location,
"standard::type,standard::name,standard::content-type",
G_FILE_QUERY_INFO_NONE,
G_PRIORITY_DEFAULT,
NULL,
enumerate_search_providers_ready, self);
g_object_unref (providers_location);
}
static void
cc_search_panel_finalize (GObject *object)
{
CcSearchPanelPrivate *priv = CC_SEARCH_PANEL (object)->priv;
g_clear_object (&priv->builder);
g_clear_object (&priv->search_settings);
g_hash_table_destroy (priv->sort_order);
if (priv->locations_dialog)
gtk_widget_destroy (priv->locations_dialog);
G_OBJECT_CLASS (cc_search_panel_parent_class)->finalize (object);
}
static void
cc_search_panel_constructed (GObject *object)
{
CcSearchPanel *self = CC_SEARCH_PANEL (object);
GtkWidget *box, *widget, *search_box;
G_OBJECT_CLASS (cc_search_panel_parent_class)->constructed (object);
/* add the disable all switch */
search_box = WID ("search_vbox");
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
widget = gtk_switch_new ();
gtk_container_add (GTK_CONTAINER (box), widget);
g_settings_bind (self->priv->search_settings, "disable-external",
widget, "active",
G_SETTINGS_BIND_DEFAULT |
G_SETTINGS_BIND_INVERT_BOOLEAN);
g_object_bind_property (widget, "active",
search_box, "sensitive",
G_BINDING_DEFAULT |
G_BINDING_SYNC_CREATE);
gtk_widget_show_all (box);
cc_shell_embed_widget_in_header (cc_panel_get_shell (CC_PANEL (self)), box);
}
static void
cc_search_panel_init (CcSearchPanel *self)
{
GError *error;
GtkWidget *widget;
GtkWidget *scrolled_window;
guint res;
self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, CC_TYPE_SEARCH_PANEL, CcSearchPanelPrivate);
g_resources_register (cc_search_get_resource ());
self->priv->builder = gtk_builder_new ();
error = NULL;
res = gtk_builder_add_from_resource (self->priv->builder,
"/org/gnome/control-center/search/search.ui",
&error);
if (res == 0)
{
g_warning ("Could not load interface file: %s",
(error != NULL) ? error->message : "unknown error");
g_clear_error (&error);
return;
}
scrolled_window = WID ("scrolled_window");
widget = GTK_WIDGET (egg_list_box_new ());
egg_list_box_set_sort_func (EGG_LIST_BOX (widget),
list_sort_func, self, NULL);
egg_list_box_add_to_scrolled (EGG_LIST_BOX (widget), GTK_SCROLLED_WINDOW (scrolled_window));
self->priv->list_box = widget;
gtk_widget_show (widget);
g_signal_connect_swapped (widget, "child-selected",
G_CALLBACK (search_panel_invalidate_button_state), self);
self->priv->up_button = WID ("up_button");
g_signal_connect (self->priv->up_button, "clicked",
G_CALLBACK (up_button_clicked), self);
gtk_widget_set_sensitive (self->priv->up_button, FALSE);
self->priv->down_button = WID ("down_button");
g_signal_connect (self->priv->down_button, "clicked",
G_CALLBACK (down_button_clicked), self);
gtk_widget_set_sensitive (self->priv->down_button, FALSE);
widget = WID ("settings_button");
g_signal_connect (widget, "clicked",
G_CALLBACK (settings_button_clicked), self);
gtk_widget_set_sensitive (widget, cc_search_locations_dialog_is_available ());
self->priv->search_settings = g_settings_new ("org.gnome.desktop.search-providers");
self->priv->sort_order = g_hash_table_new_full (g_str_hash, g_str_equal,
g_free, NULL);
g_signal_connect_swapped (self->priv->search_settings, "changed::sort-order",
G_CALLBACK (search_panel_invalidate_sort_order), self);
search_panel_invalidate_sort_order (self);
populate_search_providers (self);
widget = WID ("search_vbox");
gtk_widget_reparent (widget, (GtkWidget *) self);
}
static void
cc_search_panel_class_init (CcSearchPanelClass *klass)
{
GObjectClass *oclass = G_OBJECT_CLASS (klass);
oclass->constructed = cc_search_panel_constructed;
oclass->finalize = cc_search_panel_finalize;
g_type_class_add_private (klass, sizeof (CcSearchPanelPrivate));
}