/*
 * Copyright (C) 2008 Tristan Van Berkom.
 *
 * This library is free software; you can redistribute it and/or it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public 
 * License along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * Authors:
 *   Tristan Van Berkom <tvb@gnome.org>
 */

#include <config.h>
#include <gladeui/glade.h>
#include <glib/gi18n-lib.h>
#include <gdk/gdkkeysyms.h>

#include "glade-tool-button-editor.h"


static void glade_tool_button_editor_finalize (GObject * object);

static void glade_tool_button_editor_editable_init (GladeEditableIface * iface);

static void glade_tool_button_editor_grab_focus (GtkWidget * widget);


G_DEFINE_TYPE_WITH_CODE (GladeToolButtonEditor, glade_tool_button_editor,
                         GTK_TYPE_VBOX,
                         G_IMPLEMENT_INTERFACE (GLADE_TYPE_EDITABLE,
                                                glade_tool_button_editor_editable_init));


static void
glade_tool_button_editor_class_init (GladeToolButtonEditorClass * klass)
{
  GObjectClass *object_class = G_OBJECT_CLASS (klass);
  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);

  object_class->finalize = glade_tool_button_editor_finalize;
  widget_class->grab_focus = glade_tool_button_editor_grab_focus;
}

static void
glade_tool_button_editor_init (GladeToolButtonEditor * self)
{
}

static void
project_changed (GladeProject * project,
                 GladeCommand * command,
                 gboolean execute, GladeToolButtonEditor * button_editor)
{
  if (button_editor->modifying ||
      !gtk_widget_get_mapped (GTK_WIDGET (button_editor)))
    return;

  /* Reload on all commands */
  glade_editable_load (GLADE_EDITABLE (button_editor),
                       button_editor->loaded_widget);
}


static void
project_finalized (GladeToolButtonEditor * button_editor,
                   GladeProject * where_project_was)
{
  button_editor->loaded_widget = NULL;

  glade_editable_load (GLADE_EDITABLE (button_editor), NULL);
}

static void
glade_tool_button_editor_load (GladeEditable * editable, GladeWidget * widget)
{
  GladeToolButtonEditor *button_editor = GLADE_TOOL_BUTTON_EDITOR (editable);
  gboolean custom_label = FALSE, use_appearance = FALSE;
  GladeToolButtonImageMode image_mode = 0;
  GList *l;

  button_editor->loading = TRUE;

  /* Since we watch the project */
  if (button_editor->loaded_widget)
    {
      g_signal_handlers_disconnect_by_func (glade_widget_get_project (button_editor->loaded_widget),
                                            G_CALLBACK (project_changed),
                                            button_editor);

      /* The widget could die unexpectedly... */
      g_object_weak_unref (G_OBJECT (glade_widget_get_project (button_editor->loaded_widget)),
                           (GWeakNotify) project_finalized, button_editor);
    }

  /* Mark our widget... */
  button_editor->loaded_widget = widget;

  if (button_editor->loaded_widget)
    {
      /* This fires for undo/redo */
      g_signal_connect (glade_widget_get_project (button_editor->loaded_widget),
                        "changed", G_CALLBACK (project_changed), button_editor);

      /* The widget/project could die unexpectedly... */
      g_object_weak_ref (G_OBJECT (glade_widget_get_project (button_editor->loaded_widget)),
                         (GWeakNotify) project_finalized, button_editor);
    }

  /* load the embedded editable... */
  if (button_editor->embed)
    glade_editable_load (GLADE_EDITABLE (button_editor->embed), widget);

  for (l = button_editor->properties; l; l = l->next)
    glade_editor_property_load_by_widget (GLADE_EDITOR_PROPERTY (l->data),
                                          widget);

  if (widget)
    {
      glade_widget_property_get (widget, "image-mode", &image_mode);
      glade_widget_property_get (widget, "custom-label", &custom_label);
      glade_widget_property_get (widget, "use-action-appearance",
                                 &use_appearance);

      if (custom_label)
        gtk_toggle_button_set_active
            (GTK_TOGGLE_BUTTON (button_editor->custom_label_radio), TRUE);
      else
        gtk_toggle_button_set_active
            (GTK_TOGGLE_BUTTON (button_editor->standard_label_radio), TRUE);

      switch (image_mode)
        {
          case GLADE_TB_MODE_STOCK:
            gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
                                          (button_editor->stock_radio), TRUE);
            break;
          case GLADE_TB_MODE_ICON:
            gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
                                          (button_editor->icon_radio), TRUE);
            break;
          case GLADE_TB_MODE_CUSTOM:
            gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON
                                          (button_editor->custom_radio), TRUE);
            break;
          default:
            break;
        }

      if (use_appearance)
        {
          gtk_widget_set_sensitive (button_editor->label_table, FALSE);
          gtk_widget_set_sensitive (button_editor->image_table, FALSE);
        }
      else
        {
          gtk_widget_set_sensitive (button_editor->label_table, TRUE);
          gtk_widget_set_sensitive (button_editor->image_table, TRUE);
        }
    }
  button_editor->loading = FALSE;
}


static void
standard_label_toggled (GtkWidget * widget,
                        GladeToolButtonEditor * button_editor)
{
  GladeProperty *property;
  GValue value = { 0, };

  if (button_editor->loading || !button_editor->loaded_widget)
    return;

  if (!gtk_toggle_button_get_active
      (GTK_TOGGLE_BUTTON (button_editor->standard_label_radio)))
    return;

  button_editor->modifying = TRUE;

  glade_command_push_group (_("Setting %s to use standard label text"),
                            glade_widget_get_name (button_editor->loaded_widget));

  property =
      glade_widget_get_property (button_editor->loaded_widget, "label-widget");
  glade_command_set_property (property, NULL);

  property = glade_widget_get_property (button_editor->loaded_widget, "label");
  glade_property_get_default (property, &value);
  glade_command_set_property_value (property, &value);
  g_value_unset (&value);
  property =
      glade_widget_get_property (button_editor->loaded_widget, "custom-label");
  glade_command_set_property (property, FALSE);

  glade_command_pop_group ();

  button_editor->modifying = FALSE;

  /* reload buttons and sensitivity and stuff... */
  glade_editable_load (GLADE_EDITABLE (button_editor),
                       button_editor->loaded_widget);
}

static void
custom_label_toggled (GtkWidget * widget, GladeToolButtonEditor * button_editor)
{
  GladeProperty *property;

  if (button_editor->loading || !button_editor->loaded_widget)
    return;

  if (!gtk_toggle_button_get_active
      (GTK_TOGGLE_BUTTON (button_editor->custom_label_radio)))
    return;

  button_editor->modifying = TRUE;

  glade_command_push_group (_("Setting %s to use a custom label widget"),
                            glade_widget_get_name (button_editor->loaded_widget));

  property = glade_widget_get_property (button_editor->loaded_widget, "label");
  glade_command_set_property (property, NULL);
  property =
      glade_widget_get_property (button_editor->loaded_widget, "custom-label");
  glade_command_set_property (property, TRUE);

  glade_command_pop_group ();

  button_editor->modifying = FALSE;

  /* reload buttons and sensitivity and stuff... */
  glade_editable_load (GLADE_EDITABLE (button_editor),
                       button_editor->loaded_widget);
}

static void
stock_toggled (GtkWidget * widget, GladeToolButtonEditor * button_editor)
{
  GladeProperty *property;

  if (button_editor->loading || !button_editor->loaded_widget)
    return;

  if (!gtk_toggle_button_get_active
      (GTK_TOGGLE_BUTTON (button_editor->stock_radio)))
    return;

  button_editor->modifying = TRUE;

  glade_command_push_group (_("Setting %s to use an image from stock"),
                            glade_widget_get_name (button_editor->loaded_widget));

  property =
      glade_widget_get_property (button_editor->loaded_widget, "icon-name");
  glade_command_set_property (property, NULL);
  property = glade_widget_get_property (button_editor->loaded_widget, "icon");
  glade_command_set_property (property, NULL);
  property =
      glade_widget_get_property (button_editor->loaded_widget, "icon-widget");
  glade_command_set_property (property, NULL);
  property =
      glade_widget_get_property (button_editor->loaded_widget, "image-mode");
  glade_command_set_property (property, GLADE_TB_MODE_STOCK);

  glade_command_pop_group ();

  button_editor->modifying = FALSE;

  /* reload buttons and sensitivity and stuff... */
  glade_editable_load (GLADE_EDITABLE (button_editor),
                       button_editor->loaded_widget);
}


static void
icon_toggled (GtkWidget * widget, GladeToolButtonEditor * button_editor)
{
  GladeProperty *property;

  if (button_editor->loading || !button_editor->loaded_widget)
    return;

  if (!gtk_toggle_button_get_active
      (GTK_TOGGLE_BUTTON (button_editor->icon_radio)))
    return;

  button_editor->modifying = TRUE;

  glade_command_push_group (_("Setting %s to use an image from the icon theme"),
                            glade_widget_get_name (button_editor->loaded_widget));

  property =
      glade_widget_get_property (button_editor->loaded_widget, "stock-id");
  glade_command_set_property (property, NULL);
  property = glade_widget_get_property (button_editor->loaded_widget, "icon");
  glade_command_set_property (property, NULL);
  property =
      glade_widget_get_property (button_editor->loaded_widget, "icon-widget");
  glade_command_set_property (property, NULL);
  property =
      glade_widget_get_property (button_editor->loaded_widget, "image-mode");
  glade_command_set_property (property, GLADE_TB_MODE_ICON);

  glade_command_pop_group ();

  button_editor->modifying = FALSE;

  /* reload buttons and sensitivity and stuff... */
  glade_editable_load (GLADE_EDITABLE (button_editor),
                       button_editor->loaded_widget);
}

static void
custom_toggled (GtkWidget * widget, GladeToolButtonEditor * button_editor)
{
  GladeProperty *property;

  if (button_editor->loading || !button_editor->loaded_widget)
    return;

  if (!gtk_toggle_button_get_active
      (GTK_TOGGLE_BUTTON (button_editor->custom_radio)))
    return;

  button_editor->modifying = TRUE;

  glade_command_push_group (_("Setting %s to use an image from the icon theme"),
                            glade_widget_get_name (button_editor->loaded_widget));

  property =
      glade_widget_get_property (button_editor->loaded_widget, "stock-id");
  glade_command_set_property (property, NULL);
  property =
      glade_widget_get_property (button_editor->loaded_widget, "icon-name");
  glade_command_set_property (property, NULL);
  property = glade_widget_get_property (button_editor->loaded_widget, "icon");
  glade_command_set_property (property, NULL);
  property =
      glade_widget_get_property (button_editor->loaded_widget, "image-mode");
  glade_command_set_property (property, GLADE_TB_MODE_CUSTOM);

  glade_command_pop_group ();

  button_editor->modifying = FALSE;

  /* reload buttons and sensitivity and stuff... */
  glade_editable_load (GLADE_EDITABLE (button_editor),
                       button_editor->loaded_widget);
}

static void
glade_tool_button_editor_set_show_name (GladeEditable * editable,
                                        gboolean show_name)
{
  GladeToolButtonEditor *button_editor = GLADE_TOOL_BUTTON_EDITOR (editable);

  glade_editable_set_show_name (GLADE_EDITABLE (button_editor->embed),
                                show_name);
}

static void
glade_tool_button_editor_editable_init (GladeEditableIface * iface)
{
  iface->load = glade_tool_button_editor_load;
  iface->set_show_name = glade_tool_button_editor_set_show_name;
}

static void
glade_tool_button_editor_finalize (GObject * object)
{
  GladeToolButtonEditor *button_editor = GLADE_TOOL_BUTTON_EDITOR (object);

  if (button_editor->properties)
    g_list_free (button_editor->properties);
  button_editor->properties = NULL;
  button_editor->embed = NULL;

  glade_editable_load (GLADE_EDITABLE (object), NULL);

  G_OBJECT_CLASS (glade_tool_button_editor_parent_class)->finalize (object);
}

static void
glade_tool_button_editor_grab_focus (GtkWidget * widget)
{
  GladeToolButtonEditor *button_editor = GLADE_TOOL_BUTTON_EDITOR (widget);

  gtk_widget_grab_focus (button_editor->embed);
}

static void
table_attach (GtkWidget * table, GtkWidget * child, gint pos, gint row)
{
  gtk_grid_attach (GTK_GRID (table), child, pos, row, 1, 1);

  if (pos)
    gtk_widget_set_hexpand (child, TRUE);
}

GtkWidget *
glade_tool_button_editor_new (GladeWidgetAdaptor * adaptor,
                              GladeEditable * embed)
{
  GladeToolButtonEditor *button_editor;
  GladeEditorProperty *eprop;
  GtkWidget *label, *alignment, *frame, *table, *hbox;
  gchar *str;

  g_return_val_if_fail (GLADE_IS_WIDGET_ADAPTOR (adaptor), NULL);
  g_return_val_if_fail (GLADE_IS_EDITABLE (embed), NULL);

  button_editor = g_object_new (GLADE_TYPE_TOOL_BUTTON_EDITOR, NULL);
  button_editor->embed = GTK_WIDGET (embed);

  /* Pack the parent on top... */
  gtk_box_pack_start (GTK_BOX (button_editor), GTK_WIDGET (embed), FALSE, FALSE,
                      0);

  /* Label area frame... */
  str = g_strdup_printf ("<b>%s</b>", _("Edit Label"));
  label = gtk_label_new (str);
  gtk_label_set_use_markup (GTK_LABEL (label), TRUE);
  g_free (str);
  frame = gtk_frame_new (NULL);
  gtk_frame_set_label_widget (GTK_FRAME (frame), label);
  gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_NONE);
  gtk_box_pack_start (GTK_BOX (button_editor), frame, FALSE, FALSE, 12);

  alignment = gtk_alignment_new (0.5F, 0.5F, 1.0F, 1.0F);
  gtk_alignment_set_padding (GTK_ALIGNMENT (alignment), 6, 0, 12, 0);
  gtk_container_add (GTK_CONTAINER (frame), alignment);

  button_editor->label_table = table = gtk_grid_new ();
  gtk_orientable_set_orientation (GTK_ORIENTABLE (table),
                                  GTK_ORIENTATION_VERTICAL);
  gtk_grid_set_row_spacing (GTK_GRID (table), 4);

  gtk_container_add (GTK_CONTAINER (alignment), table);

  /* Standard label... */
  eprop =
      glade_widget_adaptor_create_eprop_by_name (adaptor, "label", FALSE, TRUE);
  hbox = gtk_hbox_new (FALSE, 0);
  button_editor->standard_label_radio = gtk_radio_button_new (NULL);
  gtk_box_pack_start (GTK_BOX (hbox), button_editor->standard_label_radio,
                      FALSE, FALSE, 2);
  gtk_box_pack_start (GTK_BOX (hbox), eprop->item_label, TRUE, TRUE, 2);
  table_attach (table, hbox, 0, 0);
  table_attach (table, GTK_WIDGET (eprop), 1, 0);
  button_editor->properties = g_list_prepend (button_editor->properties, eprop);

  /* Custom label... */
  eprop =
      glade_widget_adaptor_create_eprop_by_name (adaptor, "label-widget", FALSE,
                                                 TRUE);
  hbox = gtk_hbox_new (FALSE, 0);
  button_editor->custom_label_radio = gtk_radio_button_new_from_widget
      (GTK_RADIO_BUTTON (button_editor->standard_label_radio));
  gtk_box_pack_start (GTK_BOX (hbox), button_editor->custom_label_radio, FALSE,
                      FALSE, 2);
  gtk_box_pack_start (GTK_BOX (hbox), eprop->item_label, TRUE, TRUE, 2);
  table_attach (table, hbox, 0, 1);
  table_attach (table, GTK_WIDGET (eprop), 1, 1);
  button_editor->properties = g_list_prepend (button_editor->properties, eprop);

  /* Image area frame... */
  str = g_strdup_printf ("<b>%s</b>", _("Edit Image"));
  label = gtk_label_new (str);
  gtk_label_set_use_markup (GTK_LABEL (label), TRUE);
  g_free (str);
  frame = gtk_frame_new (NULL);
  gtk_frame_set_label_widget (GTK_FRAME (frame), label);
  gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_NONE);
  gtk_box_pack_start (GTK_BOX (button_editor), frame, FALSE, FALSE, 8);

  alignment = gtk_alignment_new (0.5F, 0.5F, 1.0F, 1.0F);
  gtk_alignment_set_padding (GTK_ALIGNMENT (alignment), 6, 0, 12, 0);
  gtk_container_add (GTK_CONTAINER (frame), alignment);

  button_editor->image_table = table = gtk_grid_new ();
  gtk_orientable_set_orientation (GTK_ORIENTABLE (table),
                                  GTK_ORIENTATION_VERTICAL);
  gtk_grid_set_row_spacing (GTK_GRID (table), 4);

  gtk_container_add (GTK_CONTAINER (alignment), table);

  /* Stock image... */
  eprop =
      glade_widget_adaptor_create_eprop_by_name (adaptor, "stock-id", FALSE,
                                                 TRUE);
  hbox = gtk_hbox_new (FALSE, 0);
  button_editor->stock_radio = gtk_radio_button_new (NULL);
  gtk_box_pack_start (GTK_BOX (hbox), button_editor->stock_radio, FALSE, FALSE,
                      2);
  gtk_box_pack_start (GTK_BOX (hbox), eprop->item_label, TRUE, TRUE, 2);
  table_attach (table, hbox, 0, 0);
  table_attach (table, GTK_WIDGET (eprop), 1, 0);
  button_editor->properties = g_list_prepend (button_editor->properties, eprop);

  /* Icon theme image... */
  eprop =
      glade_widget_adaptor_create_eprop_by_name (adaptor, "icon-name", FALSE,
                                                 TRUE);
  hbox = gtk_hbox_new (FALSE, 0);
  button_editor->icon_radio = gtk_radio_button_new_from_widget
      (GTK_RADIO_BUTTON (button_editor->stock_radio));
  gtk_box_pack_start (GTK_BOX (hbox), button_editor->icon_radio, FALSE, FALSE,
                      2);
  gtk_box_pack_start (GTK_BOX (hbox), eprop->item_label, TRUE, TRUE, 2);
  table_attach (table, hbox, 0, 1);
  table_attach (table, GTK_WIDGET (eprop), 1, 1);
  button_editor->properties = g_list_prepend (button_editor->properties, eprop);

  /* Custom embedded image widget... */
  eprop =
      glade_widget_adaptor_create_eprop_by_name (adaptor, "icon-widget", FALSE,
                                                 TRUE);
  hbox = gtk_hbox_new (FALSE, 0);
  button_editor->custom_radio = gtk_radio_button_new_from_widget
      (GTK_RADIO_BUTTON (button_editor->stock_radio));
  gtk_box_pack_start (GTK_BOX (hbox), button_editor->custom_radio, FALSE, FALSE,
                      2);
  gtk_box_pack_start (GTK_BOX (hbox), eprop->item_label, TRUE, TRUE, 2);
  table_attach (table, hbox, 0, 2);
  table_attach (table, GTK_WIDGET (eprop), 1, 2);
  button_editor->properties = g_list_prepend (button_editor->properties, eprop);

  /* Connect radio button signals... */
  g_signal_connect (G_OBJECT (button_editor->standard_label_radio), "toggled",
                    G_CALLBACK (standard_label_toggled), button_editor);
  g_signal_connect (G_OBJECT (button_editor->custom_label_radio), "toggled",
                    G_CALLBACK (custom_label_toggled), button_editor);
  g_signal_connect (G_OBJECT (button_editor->stock_radio), "toggled",
                    G_CALLBACK (stock_toggled), button_editor);
  g_signal_connect (G_OBJECT (button_editor->icon_radio), "toggled",
                    G_CALLBACK (icon_toggled), button_editor);
  g_signal_connect (G_OBJECT (button_editor->custom_radio), "toggled",
                    G_CALLBACK (custom_toggled), button_editor);

  gtk_widget_show_all (GTK_WIDGET (button_editor));

  return GTK_WIDGET (button_editor);
}