/* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 2; tab-width: 2 -*- */

/* nautilus-preferences-window.c - Functions to create and show the nautilus
   preference window.

   Copyright (C) 2002 Jan Arne Petersen
   Copyright (C) 2016 Carlos Soriano <csoriano@gnome.com>

   The Gnome 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.

   The Gnome 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 the Gnome Library; see the file COPYING.LIB.  If not,
   see <http://www.gnu.org/licenses/>.

   Authors: Jan Arne Petersen <jpetersen@uni-bonn.de>
*/

#include <config.h>

#include "nautilus-preferences-window.h"

#include <string.h>
#include <time.h>
#include <gtk/gtk.h>
#include <gio/gio.h>

#include <glib/gi18n.h>

#include <eel/eel-glib-extensions.h>

#include <libnautilus-private/nautilus-column-chooser.h>
#include <libnautilus-private/nautilus-column-utilities.h>
#include <libnautilus-private/nautilus-global-preferences.h>
#include <libnautilus-private/nautilus-module.h>

/* string enum preferences */
#define NAUTILUS_PREFERENCES_DIALOG_DEFAULT_VIEW_WIDGET "default_view_combobox"
#define NAUTILUS_PREFERENCES_DIALOG_PREVIEW_FILES_WIDGET                       \
  "preview_image_combobox"
#define NAUTILUS_PREFERENCES_DIALOG_PREVIEW_FOLDER_WIDGET                      \
  "preview_folder_combobox"

/* bool preferences */
#define NAUTILUS_PREFERENCES_DIALOG_FOLDERS_FIRST_WIDGET                       \
  "sort_folders_first_checkbutton"
#define NAUTILUS_PREFERENCES_DIALOG_DELETE_PERMANENTLY_WIDGET                  \
  "show_delete_permanently_checkbutton"
#define NAUTILUS_PREFERENCES_DIALOG_CREATE_LINK_WIDGET                         \
  "show_create_link_checkbutton"
#define NAUTILUS_PREFERENCES_DIALOG_LIST_VIEW_USE_TREE_WIDGET                  \
  "use_tree_view_checkbutton"
#define NAUTILUS_PREFERENCES_DIALOG_TRASH_CONFIRM_WIDGET                       \
  "trash_confirm_checkbutton"
#define NAUTILUS_PREFERENCES_DIALOG_LOCAL_RECURSIVE_SEARCH_WIDGET              \
  "local_recursive_search_checkbutton"
#define NAUTILUS_PREFERENCES_DIALOG_REMOTE_RECURSIVE_SEARCH_WIDGET              \
  "remote_recursive_search_checkbutton"

/* int enums */
#define NAUTILUS_PREFERENCES_DIALOG_THUMBNAIL_LIMIT_WIDGET                     \
  "preview_image_size_combobox"

static const char *const speed_tradeoff_values[] = {"always", "local-only", "never",
                                             NULL};

static const char *const click_behavior_components[] = {
    "single_click_radiobutton", "double_click_radiobutton", NULL};

static const char *const click_behavior_values[] = {"single", "double", NULL};

static const char *const executable_text_components[] = {
    "scripts_execute_radiobutton", "scripts_view_radiobutton",
    "scripts_confirm_radiobutton", NULL};

static const char *const executable_text_values[] = {"launch", "display", "ask",
                                                     NULL};

static const char *const recursive_search_components[] = {
    "search_recursive_only_this_computer_radiobutton", "search_recursive_all_locations_radiobutton", "search_recursive_never_radiobutton", NULL};

static const char *const thumbnails_components[] = {
    "thumbnails_only_this_computer_radiobutton", "thumbnails_all_files_radiobutton", "thumbnails_never_radiobutton", NULL};

static const char *const count_components[] = {
    "count_only_this_computer_radiobutton", "count_all_files_radiobutton", "count_never_radiobutton", NULL};

static const guint64 thumbnail_limit_values[] = {
    102400,   512000,    1048576,    3145728,     5242880,
    10485760, 104857600, 1073741824, 2147483648U, 4294967295U};

static const char *const icon_captions_components[] = {
    "captions_0_combobox", "captions_1_combobox", "captions_2_combobox", NULL};

static GtkWidget *preferences_window = NULL;

static void nautilus_preferences_window_size_group_create(GtkBuilder *builder,
                                                          char *prefix,
                                                          int items) {
  GtkSizeGroup *size_group;
  int i;
  char *item_name;
  GtkWidget *widget;

  size_group = gtk_size_group_new(GTK_SIZE_GROUP_HORIZONTAL);

  for (i = 0; i < items; i++) {
    item_name = g_strdup_printf("%s_%d", prefix, i);
    widget = GTK_WIDGET(gtk_builder_get_object(builder, item_name));
    gtk_size_group_add_widget(size_group, widget);
    g_free(item_name);
  }
  g_object_unref(G_OBJECT(size_group));
}

static void columns_changed_callback(NautilusColumnChooser *chooser,
                                     gpointer callback_data) {
  char **visible_columns;
  char **column_order;

  nautilus_column_chooser_get_settings(NAUTILUS_COLUMN_CHOOSER(chooser),
                                       &visible_columns, &column_order);

  g_settings_set_strv(nautilus_list_view_preferences,
                      NAUTILUS_PREFERENCES_LIST_VIEW_DEFAULT_VISIBLE_COLUMNS,
                      (const char *const *)visible_columns);
  g_settings_set_strv(nautilus_list_view_preferences,
                      NAUTILUS_PREFERENCES_LIST_VIEW_DEFAULT_COLUMN_ORDER,
                      (const char *const *)column_order);

  g_strfreev(visible_columns);
  g_strfreev(column_order);
}

static void free_column_names_array(GPtrArray *column_names) {
  g_ptr_array_foreach(column_names, (GFunc)g_free, NULL);
  g_ptr_array_free(column_names, TRUE);
}

static void create_icon_caption_combo_box_items(GtkComboBoxText *combo_box,
                                                GList *columns) {
  GList *l;
  GPtrArray *column_names;

  column_names = g_ptr_array_new();

  /* Translators: this is referred to captions under icons. */
  gtk_combo_box_text_append_text(combo_box, _("None"));
  g_ptr_array_add(column_names, g_strdup("none"));

  for (l = columns; l != NULL; l = l->next) {
    NautilusColumn *column;
    char *name;
    char *label;

    column = NAUTILUS_COLUMN(l->data);

    g_object_get(G_OBJECT(column), "name", &name, "label", &label, NULL);

    /* Don't show name here, it doesn't make sense */
    if (!strcmp(name, "name")) {
      g_free(name);
      g_free(label);
      continue;
    }

    gtk_combo_box_text_append_text(combo_box, label);
    g_ptr_array_add(column_names, name);

    g_free(label);
  }
  g_object_set_data_full(G_OBJECT(combo_box), "column_names", column_names,
                         (GDestroyNotify)free_column_names_array);
}

static void icon_captions_changed_callback(GtkComboBox *combo_box,
                                           gpointer user_data) {
  GPtrArray *captions;
  GtkBuilder *builder;
  int i;

  builder = GTK_BUILDER(user_data);

  captions = g_ptr_array_new();

  for (i = 0; icon_captions_components[i] != NULL; i++) {
    GtkWidget *combo_box;
    int active;
    GPtrArray *column_names;
    char *name;

    combo_box = GTK_WIDGET(
        gtk_builder_get_object(builder, icon_captions_components[i]));
    active = gtk_combo_box_get_active(GTK_COMBO_BOX(combo_box));

    column_names = g_object_get_data(G_OBJECT(combo_box), "column_names");

    name = g_ptr_array_index(column_names, active);
    g_ptr_array_add(captions, name);
  }
  g_ptr_array_add(captions, NULL);

  g_settings_set_strv(nautilus_icon_view_preferences,
                      NAUTILUS_PREFERENCES_ICON_VIEW_CAPTIONS,
                      (const char **)captions->pdata);
  g_ptr_array_free(captions, TRUE);
}

static void update_caption_combo_box(GtkBuilder *builder,
                                     const char *combo_box_name,
                                     const char *name) {
  GtkWidget *combo_box;
  int i;
  GPtrArray *column_names;

  combo_box = GTK_WIDGET(gtk_builder_get_object(builder, combo_box_name));

  g_signal_handlers_block_by_func(
      combo_box, G_CALLBACK(icon_captions_changed_callback), builder);

  column_names = g_object_get_data(G_OBJECT(combo_box), "column_names");

  for (i = 0; i < column_names->len; ++i) {
    if (!strcmp(name, g_ptr_array_index(column_names, i))) {
      gtk_combo_box_set_active(GTK_COMBO_BOX(combo_box), i);
      break;
    }
  }

  g_signal_handlers_unblock_by_func(
      combo_box, G_CALLBACK(icon_captions_changed_callback), builder);
}

static void update_icon_captions_from_settings(GtkBuilder *builder) {
  char **captions;
  int i, j;

  captions = g_settings_get_strv(nautilus_icon_view_preferences,
                                 NAUTILUS_PREFERENCES_ICON_VIEW_CAPTIONS);
  if (captions == NULL)
    return;

  for (i = 0, j = 0; icon_captions_components[i] != NULL; i++) {
    char *data;

    if (captions[j]) {
      data = captions[j];
      ++j;
    } else {
      data = "none";
    }

    update_caption_combo_box(builder, icon_captions_components[i], data);
  }

  g_strfreev(captions);
}

static void
nautilus_preferences_window_setup_icon_caption_page(GtkBuilder *builder) {
  GList *columns;
  int i;
  gboolean writable;

  writable = g_settings_is_writable(nautilus_icon_view_preferences,
                                    NAUTILUS_PREFERENCES_ICON_VIEW_CAPTIONS);

  columns = nautilus_get_common_columns();

  for (i = 0; icon_captions_components[i] != NULL; i++) {
    GtkWidget *combo_box;

    combo_box = GTK_WIDGET(
        gtk_builder_get_object(builder, icon_captions_components[i]));

    create_icon_caption_combo_box_items(GTK_COMBO_BOX_TEXT(combo_box), columns);
    gtk_widget_set_sensitive(combo_box, writable);

    g_signal_connect_data(
        combo_box, "changed", G_CALLBACK(icon_captions_changed_callback),
        g_object_ref(builder), (GClosureNotify)g_object_unref, 0);
  }

  nautilus_column_list_free(columns);

  update_icon_captions_from_settings(builder);
}

static void set_columns_from_settings(NautilusColumnChooser *chooser) {
  char **visible_columns;
  char **column_order;

  visible_columns = g_settings_get_strv(
      nautilus_list_view_preferences,
      NAUTILUS_PREFERENCES_LIST_VIEW_DEFAULT_VISIBLE_COLUMNS);
  column_order =
      g_settings_get_strv(nautilus_list_view_preferences,
                          NAUTILUS_PREFERENCES_LIST_VIEW_DEFAULT_COLUMN_ORDER);

  nautilus_column_chooser_set_settings(NAUTILUS_COLUMN_CHOOSER(chooser),
                                       visible_columns, column_order);

  g_strfreev(visible_columns);
  g_strfreev(column_order);
}

static void use_default_callback(NautilusColumnChooser *chooser,
                                 gpointer user_data) {
  g_settings_reset(nautilus_list_view_preferences,
                   NAUTILUS_PREFERENCES_LIST_VIEW_DEFAULT_VISIBLE_COLUMNS);
  g_settings_reset(nautilus_list_view_preferences,
                   NAUTILUS_PREFERENCES_LIST_VIEW_DEFAULT_COLUMN_ORDER);
  set_columns_from_settings(chooser);
}

static void
nautilus_preferences_window_setup_list_column_page(GtkBuilder *builder) {
  GtkWidget *chooser;
  GtkWidget *box;

  chooser = nautilus_column_chooser_new(NULL);
  g_signal_connect(chooser, "changed", G_CALLBACK(columns_changed_callback),
                   chooser);
  g_signal_connect(chooser, "use-default", G_CALLBACK(use_default_callback),
                   chooser);

  set_columns_from_settings(NAUTILUS_COLUMN_CHOOSER(chooser));

  gtk_widget_show(chooser);
  box = GTK_WIDGET(gtk_builder_get_object(builder, "list_columns_vbox"));

  gtk_box_pack_start(GTK_BOX(box), chooser, TRUE, TRUE, 0);
}

static void bind_builder_bool(GtkBuilder *builder, GSettings *settings,
                              const char *widget_name, const char *prefs) {
  g_settings_bind(settings, prefs, gtk_builder_get_object(builder, widget_name),
                  "active", G_SETTINGS_BIND_DEFAULT);
}

static gboolean enum_get_mapping(GValue *value, GVariant *variant,
                                 gpointer user_data) {
  const char **enum_values = user_data;
  const char *str;
  int i;

  str = g_variant_get_string(variant, NULL);
  for (i = 0; enum_values[i] != NULL; i++) {
    if (strcmp(enum_values[i], str) == 0) {
      g_value_set_int(value, i);
      return TRUE;
    }
  }

  return FALSE;
}

static GVariant *enum_set_mapping(const GValue *value,
                                  const GVariantType *expected_type,
                                  gpointer user_data) {
  const char **enum_values = user_data;

  return g_variant_new_string(enum_values[g_value_get_int(value)]);
}

static void bind_builder_enum(GtkBuilder *builder, GSettings *settings,
                              const char *widget_name, const char *prefs,
                              const char **enum_values) {
  g_settings_bind_with_mapping(
      settings, prefs, gtk_builder_get_object(builder, widget_name), "active",
      G_SETTINGS_BIND_DEFAULT, enum_get_mapping, enum_set_mapping, enum_values,
      NULL);
}

typedef struct {
  const guint64 *values;
  int n_values;
} UIntEnumBinding;

static gboolean uint_enum_get_mapping(GValue *value, GVariant *variant,
                                      gpointer user_data) {
  UIntEnumBinding *binding = user_data;
  guint64 v;
  int i;

  v = g_variant_get_uint64(variant);
  for (i = 0; i < binding->n_values; i++) {
    if (binding->values[i] >= v) {
      g_value_set_int(value, i);
      return TRUE;
    }
  }

  return FALSE;
}

static GVariant *uint_enum_set_mapping(const GValue *value,
                                       const GVariantType *expected_type,
                                       gpointer user_data) {
  UIntEnumBinding *binding = user_data;

  return g_variant_new_uint64(binding->values[g_value_get_int(value)]);
}

static void bind_builder_uint_enum(GtkBuilder *builder, GSettings *settings,
                                   const char *widget_name, const char *prefs,
                                   const guint64 *values, int n_values) {
  UIntEnumBinding *binding;

  binding = g_new(UIntEnumBinding, 1);
  binding->values = values;
  binding->n_values = n_values;

  g_settings_bind_with_mapping(
      settings, prefs, gtk_builder_get_object(builder, widget_name), "active",
      G_SETTINGS_BIND_DEFAULT, uint_enum_get_mapping, uint_enum_set_mapping,
      binding, g_free);
}

static GVariant *radio_mapping_set(const GValue *gvalue,
                                   const GVariantType *expected_type,
                                   gpointer user_data) {
  const gchar *widget_value = user_data;
  GVariant *retval = NULL;

  if (g_value_get_boolean(gvalue)) {
    retval = g_variant_new_string(widget_value);
  }

  return retval;
}

static gboolean radio_mapping_get(GValue *gvalue, GVariant *variant,
                                  gpointer user_data) {
  const gchar *widget_value = user_data;
  const gchar *value;

  value = g_variant_get_string(variant, NULL);

  if (g_strcmp0(value, widget_value) == 0) {
    g_value_set_boolean(gvalue, TRUE);
  } else {
    g_value_set_boolean(gvalue, FALSE);
  }

  return TRUE;
}

static void bind_builder_radio(GtkBuilder *builder, GSettings *settings,
                               const char **widget_names, const char *prefs,
                               const char **values) {
  GtkWidget *button;
  int i;

  for (i = 0; widget_names[i] != NULL; i++) {
    button = GTK_WIDGET(gtk_builder_get_object(builder, widget_names[i]));

    g_settings_bind_with_mapping(settings, prefs, button, "active",
                                 G_SETTINGS_BIND_DEFAULT, radio_mapping_get,
                                 radio_mapping_set, (gpointer)values[i], NULL);
  }
}

static void set_gtk_filechooser_sort_first(GObject *object, GParamSpec *pspec) {
  g_settings_set_boolean(
      gtk_filechooser_preferences, NAUTILUS_PREFERENCES_SORT_DIRECTORIES_FIRST,
      gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(object)));
}

static void nautilus_preferences_window_setup(GtkBuilder *builder,
                                              GtkWindow *parent_window) {
  GtkWidget *window;

  /* setup preferences */
  bind_builder_bool(builder, nautilus_preferences,
                    NAUTILUS_PREFERENCES_DIALOG_FOLDERS_FIRST_WIDGET,
                    NAUTILUS_PREFERENCES_SORT_DIRECTORIES_FIRST);
  g_signal_connect(
      gtk_builder_get_object(builder,
                             NAUTILUS_PREFERENCES_DIALOG_FOLDERS_FIRST_WIDGET),
      "notify::active", G_CALLBACK(set_gtk_filechooser_sort_first), NULL);

  bind_builder_bool(builder, nautilus_preferences,
                    NAUTILUS_PREFERENCES_DIALOG_TRASH_CONFIRM_WIDGET,
                    NAUTILUS_PREFERENCES_CONFIRM_TRASH);
  bind_builder_bool(builder, nautilus_list_view_preferences,
                    NAUTILUS_PREFERENCES_DIALOG_LIST_VIEW_USE_TREE_WIDGET,
                    NAUTILUS_PREFERENCES_LIST_VIEW_USE_TREE);
  bind_builder_bool(builder, nautilus_preferences,
                    NAUTILUS_PREFERENCES_DIALOG_CREATE_LINK_WIDGET,
                    NAUTILUS_PREFERENCES_SHOW_CREATE_LINK);
  bind_builder_bool(builder, nautilus_preferences,
                    NAUTILUS_PREFERENCES_DIALOG_DELETE_PERMANENTLY_WIDGET,
                    NAUTILUS_PREFERENCES_SHOW_DELETE_PERMANENTLY);

  bind_builder_radio(
      builder, nautilus_preferences, (const char **)click_behavior_components,
      NAUTILUS_PREFERENCES_CLICK_POLICY, (const char **)click_behavior_values);
  bind_builder_radio(builder, nautilus_preferences,
                     (const char **)executable_text_components,
                     NAUTILUS_PREFERENCES_EXECUTABLE_TEXT_ACTIVATION,
                     (const char **)executable_text_values);
  bind_builder_radio(builder, nautilus_preferences,
                     (const char **)recursive_search_components,
                     NAUTILUS_PREFERENCES_RECURSIVE_SEARCH,
                     (const char **)speed_tradeoff_values);
  bind_builder_radio(builder, nautilus_preferences,
                     (const char **)thumbnails_components,
                     NAUTILUS_PREFERENCES_SHOW_FILE_THUMBNAILS,
                     (const char **)speed_tradeoff_values);
  bind_builder_radio(builder, nautilus_preferences,
                     (const char **)count_components,
                     NAUTILUS_PREFERENCES_SHOW_DIRECTORY_ITEM_COUNTS,
                     (const char **)speed_tradeoff_values);

  bind_builder_uint_enum(builder, nautilus_preferences,
                         NAUTILUS_PREFERENCES_DIALOG_THUMBNAIL_LIMIT_WIDGET,
                         NAUTILUS_PREFERENCES_FILE_THUMBNAIL_LIMIT,
                         thumbnail_limit_values,
                         G_N_ELEMENTS(thumbnail_limit_values));

  nautilus_preferences_window_setup_icon_caption_page(builder);
  nautilus_preferences_window_setup_list_column_page(builder);

  /* UI callbacks */
  window = GTK_WIDGET(gtk_builder_get_object(builder, "preferences_window"));
  preferences_window = window;

  gtk_window_set_icon_name(GTK_WINDOW(preferences_window), "system-file-manager");

  g_object_add_weak_pointer(G_OBJECT(window), (gpointer *)&preferences_window);

  gtk_window_set_transient_for(GTK_WINDOW(preferences_window), parent_window);

  gtk_widget_show(preferences_window);
}

void nautilus_preferences_window_show(GtkWindow *window) {
  GtkBuilder *builder;

  if (preferences_window != NULL) {
    gtk_window_present(GTK_WINDOW(preferences_window));
    return;
  }

  builder = gtk_builder_new();

  gtk_builder_add_from_resource(
      builder, "/org/gnome/nautilus/ui/nautilus-preferences-window.ui", NULL);

  nautilus_preferences_window_setup(builder, window);

  g_object_unref(builder);
}