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nautilus-navigation-window-pane.c

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*-

   nautilus-navigation-window-pane.c: Nautilus navigation window pane

   Copyright (C) 2008 Free Software Foundation, 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: Holger Berndt <berndth@gmx.de>
*/

#include "nautilus-navigation-window-pane.h"
#include "nautilus-window-private.h"
#include "nautilus-window-manage-views.h"
#include "nautilus-navigation-bar.h"
#include "nautilus-pathbar.h"
#include "nautilus-location-bar.h"
#include "nautilus-notebook.h"

#include <libnautilus-private/nautilus-global-preferences.h>
#include <libnautilus-private/nautilus-window-slot-info.h>
#include <libnautilus-private/nautilus-view-factory.h>
#include <libnautilus-private/nautilus-entry.h>

#include <eel/eel-preferences.h>


static void nautilus_navigation_window_pane_init       (NautilusNavigationWindowPane *pane);
static void nautilus_navigation_window_pane_class_init (NautilusNavigationWindowPaneClass *class);
static void nautilus_navigation_window_pane_dispose    (GObject *object);

G_DEFINE_TYPE (NautilusNavigationWindowPane,
             nautilus_navigation_window_pane,
             NAUTILUS_TYPE_WINDOW_PANE)
#define parent_class nautilus_navigation_window_pane_parent_class


static void
real_set_active (NautilusWindowPane *pane, gboolean is_active)
{
      NautilusNavigationWindowPane *nav_pane;
      GList *l;

      nav_pane = NAUTILUS_NAVIGATION_WINDOW_PANE (pane);

      /* path bar */
      for (l = NAUTILUS_PATH_BAR (nav_pane->path_bar)->button_list; l; l = l->next) {
            gtk_widget_set_sensitive (gtk_bin_get_child (GTK_BIN (nautilus_path_bar_get_button_from_button_list_entry (l->data))), is_active);
      }

      /* navigation bar (manual entry) */
      nautilus_location_bar_set_active (NAUTILUS_LOCATION_BAR (nav_pane->navigation_bar), is_active);
}

static gboolean
navigation_bar_focus_in_callback (GtkWidget *widget, GdkEventFocus *event, gpointer user_data)
{
      NautilusWindowPane *pane;
      pane = NAUTILUS_WINDOW_PANE (user_data);
      nautilus_window_set_active_pane (pane->window, pane);
      return FALSE;
}

static int
bookmark_list_get_uri_index (GList *list, GFile *location)
{
      NautilusBookmark *bookmark;
      GList *l;
      GFile *tmp;
      int i;

      g_return_val_if_fail (location != NULL, -1);

      for (i = 0, l = list; l != NULL; i++, l = l->next) {
            bookmark = NAUTILUS_BOOKMARK (l->data);

            tmp = nautilus_bookmark_get_location (bookmark);
            if (g_file_equal (location, tmp)) {
                  g_object_unref (tmp);
                  return i;
            }
            g_object_unref (tmp);
      }

      return -1;
}

static void
search_bar_focus_in_callback (NautilusSearchBar *bar,
                        NautilusWindowPane *pane)
{
      nautilus_window_set_active_pane (pane->window, pane);
}


static void
search_bar_activate_callback (NautilusSearchBar *bar,
                        NautilusNavigationWindowPane *pane)
{
      char *uri, *current_uri;
      NautilusDirectory *directory;
      NautilusSearchDirectory *search_directory;
      NautilusQuery *query;
      GFile *location;

      uri = nautilus_search_directory_generate_new_uri ();
      location = g_file_new_for_uri (uri);
      g_free (uri);

      directory = nautilus_directory_get (location);

      g_assert (NAUTILUS_IS_SEARCH_DIRECTORY (directory));

      search_directory = NAUTILUS_SEARCH_DIRECTORY (directory);

      query = nautilus_search_bar_get_query (NAUTILUS_SEARCH_BAR (pane->search_bar));
      if (query != NULL) {
            NautilusWindowSlot *slot = NAUTILUS_WINDOW_PANE (pane)->active_slot;
            if (!nautilus_search_directory_is_indexed (search_directory)) {
                  current_uri = nautilus_window_slot_get_location_uri (slot);
                  nautilus_query_set_location (query, current_uri);
                  g_free (current_uri);
            }
            nautilus_search_directory_set_query (search_directory, query);
            g_object_unref (query);
      }

      nautilus_window_slot_go_to (NAUTILUS_WINDOW_PANE (pane)->active_slot, location, FALSE);

      nautilus_directory_unref (directory);
      g_object_unref (location);
}

static void
search_bar_cancel_callback (GtkWidget *widget,
                      NautilusNavigationWindowPane *pane)
{
      if (nautilus_navigation_window_pane_hide_temporary_bars (pane)) {
            nautilus_navigation_window_restore_focus_widget (NAUTILUS_NAVIGATION_WINDOW (NAUTILUS_WINDOW_PANE (pane)->window));
      }
}

static void
navigation_bar_cancel_callback (GtkWidget *widget,
                        NautilusNavigationWindowPane *pane)
{
      if (nautilus_navigation_window_pane_hide_temporary_bars (pane)) {
            nautilus_navigation_window_restore_focus_widget (NAUTILUS_NAVIGATION_WINDOW (NAUTILUS_WINDOW_PANE (pane)->window));
      }
}

static void
navigation_bar_location_changed_callback (GtkWidget *widget,
                                const char *uri,
                                NautilusNavigationWindowPane *pane)
{
      GFile *location;

      if (nautilus_navigation_window_pane_hide_temporary_bars (pane)) {
            nautilus_navigation_window_restore_focus_widget (NAUTILUS_NAVIGATION_WINDOW (NAUTILUS_WINDOW_PANE (pane)->window));
      }

      location = g_file_new_for_uri (uri);
      nautilus_window_slot_go_to (NAUTILUS_WINDOW_PANE (pane)->active_slot, location, FALSE);
      g_object_unref (location);
}

static void
path_bar_location_changed_callback (GtkWidget *widget,
                            GFile *location,
                            NautilusNavigationWindowPane *pane)
{
      NautilusNavigationWindowSlot *slot;
      NautilusWindowPane *win_pane;
      int i;

      g_assert (NAUTILUS_IS_NAVIGATION_WINDOW_PANE (pane));

      win_pane = NAUTILUS_WINDOW_PANE(pane);

      slot = NAUTILUS_NAVIGATION_WINDOW_SLOT (win_pane->active_slot);

      /* check whether we already visited the target location */
      i = bookmark_list_get_uri_index (slot->back_list, location);
      if (i >= 0) {
            nautilus_navigation_window_back_or_forward (NAUTILUS_NAVIGATION_WINDOW (win_pane->window), TRUE, i, FALSE);
      } else {
            nautilus_window_slot_go_to (win_pane->active_slot, location, FALSE);
      }
}

static gboolean
path_bar_button_pressed_callback (GtkWidget *widget,
                          GdkEventButton *event,
                          NautilusNavigationWindowPane *pane)
{
      NautilusWindowSlot *slot;
      NautilusView *view;
      GFile *location;
      char *uri;

      nautilus_window_set_active_pane (NAUTILUS_WINDOW_PANE (pane)->window, NAUTILUS_WINDOW_PANE (pane));

      g_object_set_data (G_OBJECT (widget), "handle-button-release",
                     GINT_TO_POINTER (TRUE));

      if (event->button == 3) {
            slot = nautilus_window_get_active_slot (NAUTILUS_WINDOW_PANE (pane)->window);
            view = slot->content_view;
            if (view != NULL) {
                  location = nautilus_path_bar_get_path_for_button (
                        NAUTILUS_PATH_BAR (pane->path_bar), widget);
                  if (location != NULL) {
                        uri = g_file_get_uri (location);
                        nautilus_view_pop_up_location_context_menu (
                              view, event, uri);
                        g_object_unref (G_OBJECT (location));
                        g_free (uri);
                        return TRUE;
                  }
            }
      }

      return FALSE;
}

static gboolean
path_bar_button_released_callback (GtkWidget *widget,
                           GdkEventButton *event,
                           NautilusNavigationWindowPane *pane)
{
      NautilusWindowSlot *slot;
      NautilusWindowOpenFlags flags;
      GFile *location;
      int mask;
      gboolean handle_button_release;

      mask = event->state & gtk_accelerator_get_default_mod_mask ();
      flags = 0;

      handle_button_release = GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (widget),
                                      "handle-button-release"));

      if (event->type == GDK_BUTTON_RELEASE && handle_button_release) {
            location = nautilus_path_bar_get_path_for_button (NAUTILUS_PATH_BAR (pane->path_bar), widget);

            if (event->button == 2 && mask == 0) {
                  flags = NAUTILUS_WINDOW_OPEN_FLAG_NEW_TAB;
            } else if (event->button == 1 && mask == GDK_CONTROL_MASK) {
                  flags = NAUTILUS_WINDOW_OPEN_FLAG_NEW_WINDOW;
            }

            if (flags != 0) {
                  slot = nautilus_window_get_active_slot (NAUTILUS_WINDOW_PANE (pane)->window);
                  nautilus_window_slot_info_open_location (slot, location,
                                                 NAUTILUS_WINDOW_OPEN_ACCORDING_TO_MODE,
                                                 flags, NULL);
                  g_object_unref (location);
                  return TRUE;
            }

            g_object_unref (location);
      }

      return FALSE;
}

static void
path_bar_button_drag_begin_callback (GtkWidget *widget,
                             GdkEventButton *event,
                             gpointer user_data)
{
      g_object_set_data (G_OBJECT (widget), "handle-button-release",
                     GINT_TO_POINTER (FALSE));
}

static void
path_bar_path_set_callback (GtkWidget *widget,
                      GFile *location,
                      NautilusNavigationWindowPane *pane)
{
      GList *children, *l;
      GtkWidget *child;

      children = gtk_container_get_children (GTK_CONTAINER (widget));

      for (l = children; l != NULL; l = l->next) {
            child = GTK_WIDGET (l->data);

            if (!GTK_IS_TOGGLE_BUTTON (child)) {
                  continue;
            }

            if (!g_signal_handler_find (child,
                                  G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA,
                                  0, 0, NULL,
                                  path_bar_button_pressed_callback,
                                  pane)) {
                  g_signal_connect (child, "button-press-event",
                                G_CALLBACK (path_bar_button_pressed_callback),
                                pane);
                  g_signal_connect (child, "button-release-event",
                                G_CALLBACK (path_bar_button_released_callback),
                                pane);
                  g_signal_connect (child, "drag-begin",
                                G_CALLBACK (path_bar_button_drag_begin_callback),
                                pane);
            }
      }

      g_list_free (children);
}

static void
notebook_popup_menu_move_left_cb (GtkMenuItem *menuitem,
                          gpointer user_data)
{
      NautilusNavigationWindowPane *pane;

      pane = NAUTILUS_NAVIGATION_WINDOW_PANE (user_data);
      nautilus_notebook_reorder_current_child_relative (NAUTILUS_NOTEBOOK (pane->notebook), -1);
}

static void
notebook_popup_menu_move_right_cb (GtkMenuItem *menuitem,
                           gpointer user_data)
{
      NautilusNavigationWindowPane *pane;

      pane = NAUTILUS_NAVIGATION_WINDOW_PANE (user_data);
      nautilus_notebook_reorder_current_child_relative (NAUTILUS_NOTEBOOK (pane->notebook), 1);
}

static void
notebook_popup_menu_close_cb (GtkMenuItem *menuitem,
                        gpointer user_data)
{
      NautilusWindowPane *pane;
      NautilusWindowSlot *slot;

      pane = NAUTILUS_WINDOW_PANE (user_data);
      slot = pane->active_slot;
      nautilus_window_slot_close (slot);
}

static void
notebook_popup_menu_show (NautilusNavigationWindowPane *pane,
                    GdkEventButton *event)
{
      GtkWidget *popup;
      GtkWidget *item;
      GtkWidget *image;
      int button, event_time;
      gboolean can_move_left, can_move_right;
      NautilusNotebook *notebook;

      notebook = NAUTILUS_NOTEBOOK (pane->notebook);

      can_move_left = nautilus_notebook_can_reorder_current_child_relative (notebook, -1);
      can_move_right = nautilus_notebook_can_reorder_current_child_relative (notebook, 1);

      popup = gtk_menu_new();

      item = gtk_menu_item_new_with_mnemonic (_("Move Tab _Left"));
      g_signal_connect (item, "activate",
                    G_CALLBACK (notebook_popup_menu_move_left_cb),
                    pane);
      gtk_menu_shell_append (GTK_MENU_SHELL (popup),
                         item);
      gtk_widget_set_sensitive (item, can_move_left);

      item = gtk_menu_item_new_with_mnemonic (_("Move Tab _Right"));
      g_signal_connect (item, "activate",
                    G_CALLBACK (notebook_popup_menu_move_right_cb),
                    pane);
      gtk_menu_shell_append (GTK_MENU_SHELL (popup),
                         item);
      gtk_widget_set_sensitive (item, can_move_right);

      gtk_menu_shell_append (GTK_MENU_SHELL (popup),
                         gtk_separator_menu_item_new ());

      item = gtk_image_menu_item_new_with_mnemonic (_("_Close Tab"));
      image = gtk_image_new_from_stock (GTK_STOCK_CLOSE, GTK_ICON_SIZE_MENU);
      gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
      g_signal_connect (item, "activate",
                    G_CALLBACK (notebook_popup_menu_close_cb), pane);
      gtk_menu_shell_append (GTK_MENU_SHELL (popup),
                         item);

      gtk_widget_show_all (popup);

      if (event) {
            button = event->button;
            event_time = event->time;
      } else {
            button = 0;
            event_time = gtk_get_current_event_time ();
      }

      /* TODO is this correct? */
      gtk_menu_attach_to_widget (GTK_MENU (popup),
                           pane->notebook,
                           NULL);

      gtk_menu_popup (GTK_MENU (popup), NULL, NULL, NULL, NULL,
                  button, event_time);
}

/* emitted when the user clicks the "close" button of tabs */
static void
notebook_tab_close_requested (NautilusNotebook *notebook,
                        NautilusWindowSlot *slot,
                        NautilusWindowPane *pane)
{
      nautilus_window_pane_slot_close (pane, slot);
}

static gboolean
notebook_button_press_cb (GtkWidget *widget,
                    GdkEventButton *event,
                    gpointer user_data)
{
      NautilusNavigationWindowPane *pane;

      pane = NAUTILUS_NAVIGATION_WINDOW_PANE (user_data);
      if (GDK_BUTTON_PRESS == event->type && 3 == event->button) {
            notebook_popup_menu_show (pane, event);
            return TRUE;
      }

      return FALSE;
}

static gboolean
notebook_popup_menu_cb (GtkWidget *widget,
                  gpointer user_data)
{
      NautilusNavigationWindowPane *pane;

      pane = NAUTILUS_NAVIGATION_WINDOW_PANE (user_data);
      notebook_popup_menu_show (pane, NULL);
      return TRUE;
}

static gboolean
notebook_switch_page_cb (GtkNotebook *notebook,
                   GtkNotebookPage *page,
                   unsigned int page_num,
                   NautilusNavigationWindowPane *pane)
{
      NautilusWindowSlot *slot;
      GtkWidget *widget;

      widget = gtk_notebook_get_nth_page (GTK_NOTEBOOK (pane->notebook), page_num);
      g_assert (widget != NULL);

      /* find slot corresponding to the target page */
      slot = nautilus_window_pane_get_slot_for_content_box (NAUTILUS_WINDOW_PANE (pane), widget);
      g_assert (slot != NULL);

      nautilus_window_set_active_slot (slot->pane->window, slot);

      return FALSE;
}

void
nautilus_navigation_window_pane_remove_page (NautilusNavigationWindowPane *pane, int page_num)
{
      GtkNotebook *notebook;
      notebook = GTK_NOTEBOOK (pane->notebook);

      g_signal_handlers_block_by_func (notebook,
                               G_CALLBACK (notebook_switch_page_cb),
                               pane);
      gtk_notebook_remove_page (notebook, page_num);
      g_signal_handlers_unblock_by_func (notebook,
                                 G_CALLBACK (notebook_switch_page_cb),
                                 pane);
}

void
nautilus_navigation_window_pane_add_slot_in_tab (NautilusNavigationWindowPane *pane, NautilusWindowSlot *slot, NautilusWindowOpenSlotFlags flags)
{
      NautilusNotebook *notebook;

      notebook = NAUTILUS_NOTEBOOK (pane->notebook);
      g_signal_handlers_block_by_func (notebook,
                               G_CALLBACK (notebook_switch_page_cb),
                               pane);
      nautilus_notebook_add_tab (notebook,
                           slot,
                           (flags & NAUTILUS_WINDOW_OPEN_SLOT_APPEND) != 0 ?
                           -1 :
                           gtk_notebook_get_current_page (GTK_NOTEBOOK (notebook)) + 1,
                           FALSE);
      g_signal_handlers_unblock_by_func (notebook,
                                 G_CALLBACK (notebook_switch_page_cb),
                                 pane);
}

static void
real_sync_location_widgets (NautilusWindowPane *pane)
{
      NautilusNavigationWindowSlot *navigation_slot;
      NautilusNavigationWindowPane *navigation_pane;
      NautilusWindowSlot *slot;

      slot = pane->active_slot;
      navigation_pane = NAUTILUS_NAVIGATION_WINDOW_PANE (pane);

      /* Change the location bar and path bar to match the current location. */
      if (slot->location != NULL) {
            char *uri;

            /* this may be NULL if we just created the slot */
            uri = nautilus_window_slot_get_location_uri (slot);
            nautilus_navigation_bar_set_location (NAUTILUS_NAVIGATION_BAR (navigation_pane->navigation_bar), uri);
            g_free (uri);
            nautilus_path_bar_set_path (NAUTILUS_PATH_BAR (navigation_pane->path_bar), slot->location);
      }

      /* Update window global UI if this is the active pane */
      if (pane == pane->window->details->active_pane) {
            nautilus_window_update_up_button (pane->window);

            /* Check if the back and forward buttons need enabling or disabling. */
            navigation_slot = NAUTILUS_NAVIGATION_WINDOW_SLOT (pane->window->details->active_pane->active_slot);
            nautilus_navigation_window_allow_back (NAUTILUS_NAVIGATION_WINDOW (pane->window),
                                           navigation_slot->back_list != NULL);
            nautilus_navigation_window_allow_forward (NAUTILUS_NAVIGATION_WINDOW (pane->window),
                                            navigation_slot->forward_list != NULL);
      }
}

gboolean
nautilus_navigation_window_pane_hide_temporary_bars (NautilusNavigationWindowPane *pane)
{
      NautilusWindowSlot *slot;
      NautilusDirectory *directory;
      gboolean success;

      g_assert (NAUTILUS_IS_NAVIGATION_WINDOW_PANE (pane));

      slot = NAUTILUS_WINDOW_PANE(pane)->active_slot;
      success = FALSE;

      if (pane->temporary_location_bar) {
            if (nautilus_navigation_window_pane_location_bar_showing (pane)) {
                  nautilus_navigation_window_pane_hide_location_bar (pane, FALSE);
            }
            pane->temporary_location_bar = FALSE;
            success = TRUE;
      }
      if (pane->temporary_navigation_bar) {
            directory = nautilus_directory_get (slot->location);

            if (NAUTILUS_IS_SEARCH_DIRECTORY (directory)) {
                  nautilus_navigation_window_pane_set_bar_mode (pane, NAUTILUS_BAR_SEARCH);
            } else {
                  if (!eel_preferences_get_boolean (NAUTILUS_PREFERENCES_ALWAYS_USE_LOCATION_ENTRY)) {
                        nautilus_navigation_window_pane_set_bar_mode (pane, NAUTILUS_BAR_PATH);
                  }
            }
            pane->temporary_navigation_bar = FALSE;
            success = TRUE;

            nautilus_directory_unref (directory);
      }
      if (pane->temporary_search_bar) {
            NautilusNavigationWindow *window;

            if (!eel_preferences_get_boolean (NAUTILUS_PREFERENCES_ALWAYS_USE_LOCATION_ENTRY)) {
                  nautilus_navigation_window_pane_set_bar_mode (pane, NAUTILUS_BAR_PATH);
            } else {
                  nautilus_navigation_window_pane_set_bar_mode (pane, NAUTILUS_BAR_NAVIGATION);
            }
            window = NAUTILUS_NAVIGATION_WINDOW (NAUTILUS_WINDOW_PANE (pane)->window);
            nautilus_navigation_window_set_search_button (window, FALSE);
            pane->temporary_search_bar = FALSE;
            success = TRUE;
      }

      return success;
}

void
nautilus_navigation_window_pane_always_use_location_entry (NautilusNavigationWindowPane *pane, gboolean use_entry)
{
      if (use_entry) {
            nautilus_navigation_window_pane_set_bar_mode (pane, NAUTILUS_BAR_NAVIGATION);
      } else {
            nautilus_navigation_window_pane_set_bar_mode (pane, NAUTILUS_BAR_PATH);
      }
}

void
nautilus_navigation_window_pane_setup (NautilusNavigationWindowPane *pane)
{
      GtkWidget *hbox;
      NautilusEntry *entry;
      GtkSizeGroup *header_size_group;

      pane->widget = gtk_vbox_new (FALSE, 0);

      hbox = gtk_hbox_new (FALSE, 12);
      pane->location_bar = hbox;
      gtk_container_set_border_width (GTK_CONTAINER (hbox), 4);
      gtk_box_pack_start (GTK_BOX (pane->widget), hbox,
                      FALSE, FALSE, 0);
      gtk_widget_show (hbox);

      header_size_group = NAUTILUS_NAVIGATION_WINDOW (NAUTILUS_WINDOW_PANE (pane)->window)->details->header_size_group;

      pane->path_bar = g_object_new (NAUTILUS_TYPE_PATH_BAR, NULL);
      gtk_size_group_add_widget (header_size_group, pane->path_bar);
      gtk_widget_show (pane->path_bar);

      g_signal_connect_object (pane->path_bar, "path_clicked",
                         G_CALLBACK (path_bar_location_changed_callback), pane, 0);
      g_signal_connect_object (pane->path_bar, "path_set",
                         G_CALLBACK (path_bar_path_set_callback), pane, 0);

      gtk_box_pack_start (GTK_BOX (hbox),
                      pane->path_bar,
                      TRUE, TRUE, 0);

      pane->navigation_bar = nautilus_location_bar_new (pane);
      gtk_size_group_add_widget (header_size_group, pane->navigation_bar);
      g_signal_connect_object (pane->navigation_bar, "location_changed",
                         G_CALLBACK (navigation_bar_location_changed_callback), pane, 0);
      g_signal_connect_object (pane->navigation_bar, "cancel",
                         G_CALLBACK (navigation_bar_cancel_callback), pane, 0);
      entry = nautilus_location_bar_get_entry (NAUTILUS_LOCATION_BAR (pane->navigation_bar));
      g_signal_connect (entry, "focus-in-event",
                  G_CALLBACK (navigation_bar_focus_in_callback), pane);

      gtk_box_pack_start (GTK_BOX (hbox),
                      pane->navigation_bar,
                      TRUE, TRUE, 0);

      pane->search_bar = nautilus_search_bar_new ();
      gtk_size_group_add_widget (header_size_group, pane->search_bar);
      g_signal_connect_object (pane->search_bar, "activate",
                         G_CALLBACK (search_bar_activate_callback), pane, 0);
      g_signal_connect_object (pane->search_bar, "cancel",
                         G_CALLBACK (search_bar_cancel_callback), pane, 0);
      g_signal_connect_object (pane->search_bar, "focus-in",
                         G_CALLBACK (search_bar_focus_in_callback), pane, 0);
      gtk_box_pack_start (GTK_BOX (hbox),
                      pane->search_bar,
                      TRUE, TRUE, 0);

      pane->notebook = g_object_new (NAUTILUS_TYPE_NOTEBOOK, NULL);
      gtk_box_pack_start (GTK_BOX (pane->widget), pane->notebook,
                      TRUE, TRUE, 0);
      g_signal_connect (pane->notebook,
                    "tab-close-request",
                    G_CALLBACK (notebook_tab_close_requested),
                    pane);
      g_signal_connect_after (pane->notebook,
                        "button_press_event",
                        G_CALLBACK (notebook_button_press_cb),
                        pane);
      g_signal_connect (pane->notebook, "popup-menu",
                    G_CALLBACK (notebook_popup_menu_cb),
                    pane);
      g_signal_connect (pane->notebook,
                    "switch-page",
                    G_CALLBACK (notebook_switch_page_cb),
                    pane);

      gtk_notebook_set_show_tabs (GTK_NOTEBOOK (pane->notebook), FALSE);
      gtk_notebook_set_show_border (GTK_NOTEBOOK (pane->notebook), FALSE);
      gtk_widget_show (pane->notebook);
      gtk_container_set_border_width (GTK_CONTAINER (pane->notebook), 0);

      /* Ensure that the view has some minimal size and that other parts
       * of the UI (like location bar and tabs) don't request more and
       * thus affect the default position of the split view paned.
       */
      gtk_widget_set_size_request (pane->widget, 60, 60);
}


void
nautilus_navigation_window_pane_show_location_bar_temporarily (NautilusNavigationWindowPane *pane)
{
      if (!nautilus_navigation_window_pane_location_bar_showing (pane)) {
            nautilus_navigation_window_pane_show_location_bar (pane, FALSE);
            pane->temporary_location_bar = TRUE;
      }
}

void
nautilus_navigation_window_pane_show_navigation_bar_temporarily (NautilusNavigationWindowPane *pane)
{
      if (nautilus_navigation_window_pane_path_bar_showing (pane)
          || nautilus_navigation_window_pane_search_bar_showing (pane)) {
            nautilus_navigation_window_pane_set_bar_mode (pane, NAUTILUS_BAR_NAVIGATION);
            pane->temporary_navigation_bar = TRUE;
      }
      nautilus_navigation_bar_activate
            (NAUTILUS_NAVIGATION_BAR (pane->navigation_bar));
}

gboolean
nautilus_navigation_window_pane_path_bar_showing (NautilusNavigationWindowPane *pane)
{
      if (pane->path_bar != NULL) {
            return GTK_WIDGET_VISIBLE (pane->path_bar);
      }
      /* If we're not visible yet we haven't changed visibility, so its TRUE */
      return TRUE;
}

void
nautilus_navigation_window_pane_set_bar_mode (NautilusNavigationWindowPane *pane,
                                    NautilusBarMode mode)
{
      GtkWidget *focus_widget;
      NautilusNavigationWindow *window;

      switch (mode) {

      case NAUTILUS_BAR_PATH:
            gtk_widget_show (pane->path_bar);
            gtk_widget_hide (pane->navigation_bar);
            gtk_widget_hide (pane->search_bar);
            break;

      case NAUTILUS_BAR_NAVIGATION:
            gtk_widget_show (pane->navigation_bar);
            gtk_widget_hide (pane->path_bar);
            gtk_widget_hide (pane->search_bar);
            break;

      case NAUTILUS_BAR_SEARCH:
            gtk_widget_show (pane->search_bar);
            gtk_widget_hide (pane->path_bar);
            gtk_widget_hide (pane->navigation_bar);
            break;
      }

      window = NAUTILUS_NAVIGATION_WINDOW (NAUTILUS_WINDOW_PANE (pane)->window);
      focus_widget = gtk_window_get_focus (GTK_WINDOW (window));
      if (focus_widget != NULL && !nautilus_navigation_window_is_in_temporary_navigation_bar (focus_widget, window) &&
                            !nautilus_navigation_window_is_in_temporary_search_bar (focus_widget, window)) {
            if (mode == NAUTILUS_BAR_NAVIGATION || mode == NAUTILUS_BAR_PATH) {
                  nautilus_navigation_window_set_search_button (window, FALSE);
            } else {
                  nautilus_navigation_window_set_search_button (window, TRUE);
            }
      }
}

gboolean
nautilus_navigation_window_pane_search_bar_showing (NautilusNavigationWindowPane *pane)
{
      if (pane->search_bar != NULL) {
            return GTK_WIDGET_VISIBLE (pane->search_bar);
      }
      /* If we're not visible yet we haven't changed visibility, so its TRUE */
      return TRUE;
}

void
nautilus_navigation_window_pane_hide_location_bar (NautilusNavigationWindowPane *pane, gboolean save_preference)
{
      pane->temporary_location_bar = FALSE;
      gtk_widget_hide(pane->location_bar);
      nautilus_navigation_window_update_show_hide_menu_items(
                  NAUTILUS_NAVIGATION_WINDOW (NAUTILUS_WINDOW_PANE (pane)->window));
      if (save_preference && eel_preferences_key_is_writable(NAUTILUS_PREFERENCES_START_WITH_LOCATION_BAR)) {
            eel_preferences_set_boolean(NAUTILUS_PREFERENCES_START_WITH_LOCATION_BAR, FALSE);
      }
}

void
nautilus_navigation_window_pane_show_location_bar (NautilusNavigationWindowPane *pane, gboolean save_preference)
{
      gtk_widget_show(pane->location_bar);
      nautilus_navigation_window_update_show_hide_menu_items(NAUTILUS_NAVIGATION_WINDOW (NAUTILUS_WINDOW_PANE (pane)->window));
      if (save_preference && eel_preferences_key_is_writable(NAUTILUS_PREFERENCES_START_WITH_LOCATION_BAR)) {
            eel_preferences_set_boolean(NAUTILUS_PREFERENCES_START_WITH_LOCATION_BAR, TRUE);
      }
}

gboolean
nautilus_navigation_window_pane_location_bar_showing (NautilusNavigationWindowPane *pane)
{
      if (!NAUTILUS_IS_NAVIGATION_WINDOW_PANE (pane)) {
            return FALSE;
      }
      if (pane->location_bar != NULL) {
            return GTK_WIDGET_VISIBLE (pane->location_bar);
      }
      /* If we're not visible yet we haven't changed visibility, so its TRUE */
      return TRUE;
}

static void
nautilus_navigation_window_pane_init (NautilusNavigationWindowPane *pane)
{
}

static void
nautilus_navigation_window_pane_show (NautilusWindowPane *pane)
{
      NautilusNavigationWindowPane *npane = NAUTILUS_NAVIGATION_WINDOW_PANE (pane);

      gtk_widget_show (npane->widget);
}

/* either called due to slot change, or due to location change in the current slot. */
static void
real_sync_search_widgets (NautilusWindowPane *window_pane)
{
      NautilusWindowSlot *slot;
      NautilusDirectory *directory;
      NautilusSearchDirectory *search_directory;
      NautilusNavigationWindowPane *pane;

      pane = NAUTILUS_NAVIGATION_WINDOW_PANE (window_pane);
      slot = window_pane->active_slot;
      search_directory = NULL;

      directory = nautilus_directory_get (slot->location);
      if (NAUTILUS_IS_SEARCH_DIRECTORY (directory)) {
            search_directory = NAUTILUS_SEARCH_DIRECTORY (directory);
      }

      if (search_directory != NULL &&
          !nautilus_search_directory_is_saved_search (search_directory)) {
            nautilus_navigation_window_pane_show_location_bar_temporarily (pane);
            nautilus_navigation_window_pane_set_bar_mode (pane, NAUTILUS_BAR_SEARCH);
            pane->temporary_search_bar = FALSE;
      } else {
            pane->temporary_search_bar = TRUE;
            nautilus_navigation_window_pane_hide_temporary_bars (pane);
      }
      nautilus_directory_unref (directory);
}

static void
nautilus_navigation_window_pane_class_init (NautilusNavigationWindowPaneClass *class)
{
      G_OBJECT_CLASS (class)->dispose = nautilus_navigation_window_pane_dispose;
      NAUTILUS_WINDOW_PANE_CLASS (class)->show = nautilus_navigation_window_pane_show;
      NAUTILUS_WINDOW_PANE_CLASS (class)->set_active = real_set_active;
      NAUTILUS_WINDOW_PANE_CLASS (class)->sync_search_widgets = real_sync_search_widgets;
      NAUTILUS_WINDOW_PANE_CLASS (class)->sync_location_widgets = real_sync_location_widgets;
}

static void
nautilus_navigation_window_pane_dispose (GObject *object)
{
      NautilusNavigationWindowPane *pane = NAUTILUS_NAVIGATION_WINDOW_PANE (object);

      gtk_widget_destroy (pane->widget);

      G_OBJECT_CLASS (parent_class)->dispose (object);
}

NautilusNavigationWindowPane *
nautilus_navigation_window_pane_new (NautilusWindow *window)
{
      NautilusNavigationWindowPane *pane;

      pane = g_object_new (NAUTILUS_TYPE_NAVIGATION_WINDOW_PANE, NULL);
      NAUTILUS_WINDOW_PANE(pane)->window = window;

      return pane;
}

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