[gnome-control-center/wip/gbsneto/list-layout: 2/17] build: copy CcWindow in alt/ directory



commit 02c85c7d8249d45a9d3e511df0fba080b2a646ba
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Sat May 28 12:44:36 2016 -0300

    build: copy CcWindow in alt/ directory
    
    The copied files are exact copies of shell/cc-window.c and
    shell/cc-window.h, and they'll be used to implement the restyled
    shell as an alternative binary.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=766922

 shell/alt/cc-window.c | 1600 +++++++++++++++++++++++++++++++++++++++++++++++++
 shell/alt/cc-window.h |   46 ++
 2 files changed, 1646 insertions(+), 0 deletions(-)
---
diff --git a/shell/alt/cc-window.c b/shell/alt/cc-window.c
new file mode 100644
index 0000000..c672f9c
--- /dev/null
+++ b/shell/alt/cc-window.c
@@ -0,0 +1,1600 @@
+/*
+ * Copyright (c) 2009, 2010 Intel, Inc.
+ * Copyright (c) 2010 Red Hat, Inc.
+ *
+ * The Control Center 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.
+ *
+ * The Control Center 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 the Control Center; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Author: Thomas Wood <thos gnome org>
+ */
+
+#include <config.h>
+
+#include "cc-window.h"
+
+#include <glib/gi18n.h>
+#include <gio/gio.h>
+#include <gio/gdesktopappinfo.h>
+#include <gtk/gtk.h>
+#include <gdk/gdkkeysyms.h>
+#include <gdk/gdkx.h>
+#include <string.h>
+#include <libgd/gd.h>
+
+#include "cc-panel.h"
+#include "cc-shell.h"
+#include "cc-shell-category-view.h"
+#include "cc-shell-model.h"
+#include "cc-panel-loader.h"
+#include "cc-util.h"
+
+/* Use a fixed width for the shell, since resizing horizontally is more awkward
+ * for the user than resizing vertically
+ * Both sizes are defined in https://live.gnome.org/Design/SystemSettings/ */
+#define FIXED_WIDTH 740
+#define FIXED_HEIGHT 636
+#define SMALL_SCREEN_FIXED_HEIGHT 400
+
+#define MIN_ICON_VIEW_HEIGHT 300
+
+#define MOUSE_BACK_BUTTON 8
+
+#define DEFAULT_WINDOW_TITLE N_("All Settings")
+#define DEFAULT_WINDOW_ICON_NAME "preferences-system"
+
+#define SEARCH_PAGE "_search"
+#define OVERVIEW_PAGE "_overview"
+
+typedef enum {
+       SMALL_SCREEN_UNSET,
+       SMALL_SCREEN_TRUE,
+       SMALL_SCREEN_FALSE
+} CcSmallScreen;
+
+struct _CcWindow
+{
+  GtkApplicationWindow parent;
+
+  GtkWidget  *stack;
+  GtkWidget  *header;
+  GtkWidget  *main_vbox;
+  GtkWidget  *scrolled_window;
+  GtkWidget  *search_scrolled;
+  GtkWidget  *previous_button;
+  GtkWidget  *top_right_box;
+  GtkWidget  *search_button;
+  GtkWidget  *search_bar;
+  GtkWidget  *search_entry;
+  GtkWidget  *lock_button;
+  GtkWidget  *current_panel_box;
+  GtkWidget  *current_panel;
+  char       *current_panel_id;
+  GQueue     *previous_panels;
+
+  GtkSizeGroup *header_sizegroup;
+
+  GPtrArray  *custom_widgets;
+
+  GtkListStore *store;
+
+  GtkTreeModel *search_filter;
+  GtkWidget *search_view;
+  gchar *filter_string;
+  gchar **filter_terms;
+
+  CcPanel *active_panel;
+
+  int monitor_num;
+  CcSmallScreen small_screen;
+};
+
+static void     cc_shell_iface_init         (CcShellInterface      *iface);
+
+G_DEFINE_TYPE_WITH_CODE (CcWindow, cc_window, GTK_TYPE_APPLICATION_WINDOW,
+                         G_IMPLEMENT_INTERFACE (CC_TYPE_SHELL, cc_shell_iface_init))
+
+enum
+{
+  PROP_0,
+  PROP_ACTIVE_PANEL
+};
+
+static gboolean cc_window_set_active_panel_from_id (CcShell      *shell,
+                                                    const gchar  *start_id,
+                                                    GVariant     *parameters,
+                                                    GError      **err);
+
+static gint get_monitor_height (CcWindow *self);
+
+static const gchar *
+get_icon_name_from_g_icon (GIcon *gicon)
+{
+  const gchar * const *names;
+  GtkIconTheme *icon_theme;
+  int i;
+
+  if (!G_IS_THEMED_ICON (gicon))
+    return NULL;
+
+  names = g_themed_icon_get_names (G_THEMED_ICON (gicon));
+  icon_theme = gtk_icon_theme_get_default ();
+
+  for (i = 0; names[i] != NULL; i++)
+    {
+      if (gtk_icon_theme_has_icon (icon_theme, names[i]))
+        return names[i];
+    }
+
+  return NULL;
+}
+
+static gboolean
+activate_panel (CcWindow           *self,
+                const gchar        *id,
+                GVariant           *parameters,
+                const gchar        *name,
+                GIcon              *gicon)
+{
+  GtkWidget *box;
+  const gchar *icon_name;
+
+  if (!id)
+    return FALSE;
+
+  self->current_panel = GTK_WIDGET (cc_panel_loader_load_by_name (CC_SHELL (self), id, parameters));
+  cc_shell_set_active_panel (CC_SHELL (self), CC_PANEL (self->current_panel));
+  gtk_widget_show (self->current_panel);
+
+  gtk_lock_button_set_permission (GTK_LOCK_BUTTON (self->lock_button),
+                                  cc_panel_get_permission (CC_PANEL (self->current_panel)));
+
+  box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
+
+  gtk_box_pack_start (GTK_BOX (box), self->current_panel,
+                      TRUE, TRUE, 0);
+
+  gtk_stack_add_named (GTK_STACK (self->stack), box, id);
+
+  /* switch to the new panel */
+  gtk_widget_show (box);
+  gtk_stack_set_visible_child_name (GTK_STACK (self->stack), id);
+
+  /* set the title of the window */
+  icon_name = get_icon_name_from_g_icon (gicon);
+
+  gtk_window_set_role (GTK_WINDOW (self), id);
+  gtk_header_bar_set_title (GTK_HEADER_BAR (self->header), name);
+  gtk_window_set_default_icon_name (icon_name);
+  gtk_window_set_icon_name (GTK_WINDOW (self), icon_name);
+
+  self->current_panel_box = box;
+
+  return TRUE;
+}
+
+static void
+_shell_remove_all_custom_widgets (CcWindow *self)
+{
+  GtkWidget *widget;
+  guint i;
+
+  /* remove from the header */
+  for (i = 0; i < self->custom_widgets->len; i++)
+    {
+        widget = g_ptr_array_index (self->custom_widgets, i);
+        gtk_container_remove (GTK_CONTAINER (self->top_right_box), widget);
+    }
+  g_ptr_array_set_size (self->custom_widgets, 0);
+}
+
+static void
+add_current_panel_to_history (CcShell    *shell,
+                              const char *start_id)
+{
+  CcWindow *self;
+
+  g_return_if_fail (start_id != NULL);
+
+  self = CC_WINDOW (shell);
+
+  if (!self->current_panel_id ||
+      g_strcmp0 (self->current_panel_id, start_id) == 0)
+    return;
+
+  g_queue_push_head (self->previous_panels, g_strdup (self->current_panel_id));
+  g_debug ("Added '%s' to the previous panels", self->current_panel_id);
+}
+
+static void
+shell_show_overview_page (CcWindow *self)
+{
+  gtk_stack_set_visible_child_name (GTK_STACK (self->stack), OVERVIEW_PAGE);
+
+  if (self->current_panel_box)
+    gtk_container_remove (GTK_CONTAINER (self->stack), self->current_panel_box);
+  self->current_panel = NULL;
+  self->current_panel_box = NULL;
+  g_clear_pointer (&self->current_panel_id, g_free);
+
+  /* Clear the panel history */
+  g_queue_free_full (self->previous_panels, g_free);
+  self->previous_panels = g_queue_new ();
+
+  /* clear the search text */
+  g_free (self->filter_string);
+  self->filter_string = g_strdup ("");
+  gtk_entry_set_text (GTK_ENTRY (self->search_entry), "");
+  if (gtk_search_bar_get_search_mode (GTK_SEARCH_BAR (self->search_bar)))
+    gtk_widget_grab_focus (self->search_entry);
+
+  gtk_lock_button_set_permission (GTK_LOCK_BUTTON (self->lock_button), NULL);
+
+  /* reset window title and icon */
+  gtk_window_set_role (GTK_WINDOW (self), NULL);
+  gtk_header_bar_set_title (GTK_HEADER_BAR (self->header), _(DEFAULT_WINDOW_TITLE));
+  gtk_window_set_default_icon_name (DEFAULT_WINDOW_ICON_NAME);
+  gtk_window_set_icon_name (GTK_WINDOW (self), DEFAULT_WINDOW_ICON_NAME);
+
+  cc_shell_set_active_panel (CC_SHELL (self), NULL);
+
+  /* clear any custom widgets */
+  _shell_remove_all_custom_widgets (self);
+}
+
+void
+cc_window_set_overview_page (CcWindow *center)
+{
+  shell_show_overview_page (center);
+}
+
+void
+cc_window_set_search_item (CcWindow   *center,
+                           const char *search)
+{
+  shell_show_overview_page (center);
+  gtk_search_bar_set_search_mode (GTK_SEARCH_BAR (center->search_bar), TRUE);
+  gtk_entry_set_text (GTK_ENTRY (center->search_entry), search);
+  gtk_editable_set_position (GTK_EDITABLE (center->search_entry), -1);
+}
+
+static void
+item_activated_cb (CcShellCategoryView *view,
+                   gchar               *name,
+                   gchar               *id,
+                   CcWindow            *shell)
+{
+  cc_window_set_active_panel_from_id (CC_SHELL (shell), id, NULL, NULL);
+}
+
+static gboolean
+category_focus_out (GtkWidget     *view,
+                    GdkEventFocus *event,
+                    CcWindow      *shell)
+{
+  gtk_icon_view_unselect_all (GTK_ICON_VIEW (view));
+
+  return FALSE;
+}
+
+static gboolean
+category_focus_in (GtkWidget     *view,
+                   GdkEventFocus *event,
+                   CcWindow      *shell)
+{
+  GtkTreePath *path;
+
+  if (!gtk_icon_view_get_cursor (GTK_ICON_VIEW (view), &path, NULL))
+    {
+      path = gtk_tree_path_new_from_indices (0, -1);
+      gtk_icon_view_set_cursor (GTK_ICON_VIEW (view), path, NULL, FALSE);
+    }
+
+  gtk_icon_view_select_path (GTK_ICON_VIEW (view), path);
+  gtk_tree_path_free (path);
+
+  return FALSE;
+}
+
+static GList *
+get_item_views (CcWindow *shell)
+{
+  GList *list, *l;
+  GList *res;
+
+  list = gtk_container_get_children (GTK_CONTAINER (shell->main_vbox));
+  res = NULL;
+  for (l = list; l; l = l->next)
+    {
+      if (!CC_IS_SHELL_CATEGORY_VIEW (l->data))
+        continue;
+      res = g_list_append (res, cc_shell_category_view_get_item_view (CC_SHELL_CATEGORY_VIEW (l->data)));
+    }
+
+  g_list_free (list);
+
+  return res;
+}
+
+static gboolean
+is_prev_direction (GtkWidget *widget,
+                   GtkDirectionType direction)
+{
+  if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR &&
+      direction == GTK_DIR_LEFT)
+    return TRUE;
+  if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL &&
+      direction == GTK_DIR_RIGHT)
+    return TRUE;
+  return FALSE;
+}
+
+static gboolean
+is_next_direction (GtkWidget *widget,
+                   GtkDirectionType direction)
+{
+  if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR &&
+      direction == GTK_DIR_RIGHT)
+    return TRUE;
+  if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL &&
+      direction == GTK_DIR_LEFT)
+    return TRUE;
+  return FALSE;
+}
+
+static GtkTreePath *
+get_first_path (GtkIconView *view)
+{
+  GtkTreeModel *model;
+  GtkTreeIter iter;
+
+  model = gtk_icon_view_get_model (view);
+  if (!gtk_tree_model_get_iter_first (model, &iter))
+    return NULL;
+  return gtk_tree_model_get_path (model, &iter);
+}
+
+static GtkTreePath *
+get_last_path (GtkIconView *view)
+{
+  GtkTreeModel *model;
+  GtkTreeIter iter;
+  GtkTreePath *path;
+  gboolean ret;
+
+  model = gtk_icon_view_get_model (view);
+  if (!gtk_tree_model_get_iter_first (model, &iter))
+    return NULL;
+
+  ret = TRUE;
+  path = NULL;
+
+  while (ret)
+    {
+      g_clear_pointer (&path, gtk_tree_path_free);
+      path = gtk_tree_model_get_path (model, &iter);
+      ret = gtk_tree_model_iter_next (model, &iter);
+    }
+  return path;
+}
+
+static gboolean
+categories_keynav_failed (GtkIconView      *current_view,
+                          GtkDirectionType  direction,
+                          CcWindow         *shell)
+{
+  GList *views, *v;
+  GtkIconView *new_view;
+  GtkTreePath *path;
+  GtkTreeModel *model;
+  GtkTreeIter iter;
+  gint col, c, dist, d;
+  GtkTreePath *sel;
+  gboolean res;
+
+  res = FALSE;
+
+  views = get_item_views (shell);
+
+  for (v = views; v; v = v->next)
+    {
+      if (v->data == current_view)
+        break;
+    }
+
+  new_view = NULL;
+
+  if (direction == GTK_DIR_DOWN && v != NULL && v->next != NULL)
+    {
+      new_view = v->next->data;
+
+      if (gtk_icon_view_get_cursor (current_view, &path, NULL))
+        {
+          col = gtk_icon_view_get_item_column (current_view, path);
+          gtk_tree_path_free (path);
+
+          sel = NULL;
+          dist = 1000;
+          model = gtk_icon_view_get_model (new_view);
+          g_assert (gtk_tree_model_get_iter_first (model, &iter));
+          do {
+            path = gtk_tree_model_get_path (model, &iter);
+            c = gtk_icon_view_get_item_column (new_view, path);
+            d = ABS (c - col);
+            if (d < dist)
+              {
+                if (sel)
+                  gtk_tree_path_free (sel);
+                sel = path;
+                dist = d;
+              }
+            else
+              gtk_tree_path_free (path);
+          } while (gtk_tree_model_iter_next (model, &iter));
+
+          gtk_icon_view_set_cursor (new_view, sel, NULL, FALSE);
+          gtk_tree_path_free (sel);
+        }
+
+      gtk_widget_grab_focus (GTK_WIDGET (new_view));
+
+      res = TRUE;
+    }
+
+  if (direction == GTK_DIR_UP && v != NULL && v->prev != NULL)
+    {
+      new_view = v->prev->data;
+
+      if (gtk_icon_view_get_cursor (current_view, &path, NULL))
+        {
+          col = gtk_icon_view_get_item_column (current_view, path);
+          gtk_tree_path_free (path);
+
+          sel = NULL;
+          dist = 1000;
+          model = gtk_icon_view_get_model (new_view);
+          g_assert (gtk_tree_model_get_iter_first (model, &iter));
+          do {
+            path = gtk_tree_model_get_path (model, &iter);
+            c = gtk_icon_view_get_item_column (new_view, path);
+            d = ABS (c - col);
+            if (d <= dist)
+              {
+                if (sel)
+                  gtk_tree_path_free (sel);
+                sel = path;
+                dist = d;
+              }
+            else
+              gtk_tree_path_free (path);
+          } while (gtk_tree_model_iter_next (model, &iter));
+
+          gtk_icon_view_set_cursor (new_view, sel, NULL, FALSE);
+          gtk_tree_path_free (sel);
+        }
+
+      gtk_widget_grab_focus (GTK_WIDGET (new_view));
+
+      res = TRUE;
+    }
+
+  if (is_prev_direction (GTK_WIDGET (current_view), direction) && v != NULL)
+    {
+      if (gtk_icon_view_get_cursor (current_view, &path, NULL))
+        {
+          if (v->prev)
+            new_view = v->prev->data;
+
+          if (gtk_tree_path_prev (path))
+            {
+              new_view = current_view;
+            }
+          else if (new_view != NULL)
+            {
+              path = get_last_path (new_view);
+            }
+          else
+            {
+              goto out;
+            }
+
+          gtk_icon_view_set_cursor (new_view, path, NULL, FALSE);
+          gtk_icon_view_select_path (new_view, path);
+          gtk_tree_path_free (path);
+          gtk_widget_grab_focus (GTK_WIDGET (new_view));
+
+          res = TRUE;
+        }
+    }
+
+  if (is_next_direction (GTK_WIDGET (current_view), direction) && v != NULL)
+    {
+      if (gtk_icon_view_get_cursor (current_view, &path, NULL))
+        {
+          GtkTreeIter iter;
+
+          if (v->next)
+            new_view = v->next->data;
+
+          gtk_tree_path_next (path);
+          model = gtk_icon_view_get_model (current_view);
+
+          if (gtk_tree_model_get_iter (model, &iter, path))
+            {
+              new_view = current_view;
+            }
+          else if (new_view != NULL)
+            {
+              path = get_first_path (new_view);
+            }
+          else
+            {
+              goto out;
+            }
+
+          gtk_icon_view_set_cursor (new_view, path, NULL, FALSE);
+          gtk_icon_view_select_path (new_view, path);
+          gtk_tree_path_free (path);
+          gtk_widget_grab_focus (GTK_WIDGET (new_view));
+
+          res = TRUE;
+        }
+    }
+
+out:
+  g_list_free (views);
+
+  return res;
+}
+
+static gboolean
+model_filter_func (GtkTreeModel *model,
+                   GtkTreeIter  *iter,
+                   CcWindow     *self)
+{
+  char **t;
+  gboolean matches = FALSE;
+
+  if (!self->filter_string || !self->filter_terms)
+    return FALSE;
+
+  for (t = self->filter_terms; *t; t++)
+    {
+      matches = cc_shell_model_iter_matches_search (CC_SHELL_MODEL (model),
+                                                    iter,
+                                                    *t);
+      if (!matches)
+        break;
+    }
+
+  return matches;
+}
+
+static gboolean
+category_filter_func (GtkTreeModel    *model,
+                      GtkTreeIter     *iter,
+                      CcPanelCategory  filter)
+{
+  guint category;
+
+  gtk_tree_model_get (model, iter, COL_CATEGORY, &category, -1);
+
+  return (category == filter);
+}
+
+static void
+search_entry_changed_cb (GtkEntry *entry,
+                         CcWindow *self)
+{
+  char *str;
+
+  /* if the entry text was set manually (not by the user) */
+  if (!g_strcmp0 (self->filter_string, gtk_entry_get_text (entry)))
+    {
+      cc_shell_model_set_sort_terms (CC_SHELL_MODEL (self->store), NULL);
+      return;
+    }
+
+  /* Don't re-filter for added trailing or leading spaces */
+  str = cc_util_normalize_casefold_and_unaccent (gtk_entry_get_text (entry));
+  g_strstrip (str);
+  if (!g_strcmp0 (str, self->filter_string))
+    {
+      g_free (str);
+      return;
+    }
+
+  g_free (self->filter_string);
+  self->filter_string = str;
+
+  g_strfreev (self->filter_terms);
+  self->filter_terms = g_strsplit (self->filter_string, " ", -1);
+
+  cc_shell_model_set_sort_terms (CC_SHELL_MODEL (self->store), self->filter_terms);
+
+  if (!g_strcmp0 (self->filter_string, ""))
+    {
+      shell_show_overview_page (self);
+    }
+  else
+    {
+      gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (self->search_filter));
+      gtk_stack_set_visible_child_name (GTK_STACK (self->stack), SEARCH_PAGE);
+    }
+}
+
+static gboolean
+search_entry_key_press_event_cb (GtkEntry        *entry,
+                                 GdkEventKey     *event,
+                                 CcWindow        *self)
+{
+  if (event->keyval == GDK_KEY_Return &&
+      g_strcmp0 (self->filter_string, "") != 0)
+    {
+      GtkTreePath *path;
+      GtkTreeSelection *selection;
+
+      path = gtk_tree_path_new_first ();
+
+      selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (self->search_view));
+      gtk_tree_selection_select_path (selection, path);
+
+      if (!gtk_tree_selection_path_is_selected (selection, path))
+        {
+          gtk_tree_path_free (path);
+          return FALSE;
+        }
+
+      gtk_tree_view_row_activated (GTK_TREE_VIEW (self->search_view), path,
+                                   gtk_tree_view_get_column (GTK_TREE_VIEW (self->search_view), 0));
+      gtk_tree_path_free (path);
+      return TRUE;
+    }
+
+  if (event->keyval == GDK_KEY_Escape)
+    {
+      gtk_search_bar_set_search_mode (GTK_SEARCH_BAR (self->search_bar), FALSE);
+      gtk_entry_set_text (entry, "");
+      return TRUE;
+    }
+
+  return FALSE;
+}
+
+static void
+on_search_row_activated (GtkTreeView       *treeview,
+                         GtkTreePath       *path,
+                         GtkTreeViewColumn *column,
+                         CcWindow          *shell)
+{
+  GtkTreeSelection *selection;
+  GtkTreeModel *model;
+  GtkTreeIter   iter;
+  char         *id = NULL;
+
+  selection = gtk_tree_view_get_selection (treeview);
+
+  if (!gtk_tree_selection_get_selected (selection, &model, &iter))
+    return;
+
+  gtk_tree_model_get (model, &iter,
+                      COL_ID, &id,
+                      -1);
+
+  if (id)
+    cc_window_set_active_panel_from_id (CC_SHELL (shell), id, NULL, NULL);
+
+  gtk_tree_selection_unselect_all (selection);
+
+  g_free (id);
+}
+
+static gboolean
+on_search_button_press_event (GtkTreeView    *treeview,
+                              GdkEventButton *event,
+                              CcWindow       *shell)
+{
+  if (event->type == GDK_BUTTON_PRESS && event->button == 1)
+    {
+      GtkTreePath *path = NULL;
+      GtkTreeSelection *selection;
+      GtkTreeModel *model;
+      GtkTreeIter iter;
+
+      /* We don't check for the position being blank,
+       * it could be the dead space between columns */
+      gtk_tree_view_is_blank_at_pos (treeview,
+                                     event->x, event->y,
+                                     &path,
+                                     NULL,
+                                     NULL,
+                                     NULL);
+      if (path == NULL)
+        return FALSE;
+
+      model = gtk_tree_view_get_model (treeview);
+      if (gtk_tree_model_get_iter (model, &iter, path) == FALSE)
+        {
+          gtk_tree_path_free (path);
+          return FALSE;
+        }
+
+      selection = gtk_tree_view_get_selection (treeview);
+      gtk_tree_selection_select_iter (selection, &iter);
+
+      on_search_row_activated (treeview, NULL, NULL, shell);
+
+      gtk_tree_path_free (path);
+
+      return TRUE;
+    }
+
+  return FALSE;
+}
+
+static void
+setup_search (CcWindow *self)
+{
+  GtkWidget *search_view;
+  GtkCellRenderer *renderer;
+  GtkTreeViewColumn *column;
+
+  g_return_if_fail (self->store != NULL);
+
+  /* create the search filter */
+  self->search_filter = gtk_tree_model_filter_new (GTK_TREE_MODEL (self->store),
+                                                   NULL);
+
+  gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (self->search_filter),
+                                          (GtkTreeModelFilterVisibleFunc)
+                                          model_filter_func,
+                                          self, NULL);
+
+  /* set up the search view */
+  self->search_view = search_view = gtk_tree_view_new ();
+  gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (search_view), FALSE);
+  gtk_tree_view_set_enable_search (GTK_TREE_VIEW (search_view), FALSE);
+  gtk_tree_view_set_model (GTK_TREE_VIEW (search_view),
+                           GTK_TREE_MODEL (self->search_filter));
+  /* This needs to happen after setting the model, otherwise
+   * the search column will be the first string column */
+  gtk_tree_view_set_search_column (GTK_TREE_VIEW (search_view), -1);
+
+  renderer = gtk_cell_renderer_pixbuf_new ();
+  g_object_set (renderer,
+                "xpad", 15,
+                "ypad", 10,
+                "stock-size", GTK_ICON_SIZE_DIALOG,
+                "follow-state", TRUE,
+                NULL);
+  column = gtk_tree_view_column_new_with_attributes ("Icon", renderer,
+                                                     "gicon", COL_GICON,
+                                                     NULL);
+  gtk_tree_view_column_set_expand (column, FALSE);
+  gtk_tree_view_append_column (GTK_TREE_VIEW (self->search_view), column);
+
+  renderer = gtk_cell_renderer_text_new ();
+  g_object_set (renderer,
+                "xpad", 0,
+                NULL);
+  column = gtk_tree_view_column_new_with_attributes ("Name", renderer,
+                                                     "text", COL_NAME,
+                                                     NULL);
+  gtk_tree_view_column_set_expand (column, FALSE);
+  gtk_tree_view_append_column (GTK_TREE_VIEW (self->search_view), column);
+
+  renderer = gd_styled_text_renderer_new ();
+  gd_styled_text_renderer_add_class (GD_STYLED_TEXT_RENDERER (renderer), "dim-label");
+  g_object_set (renderer,
+                "xpad", 15,
+                "ellipsize", PANGO_ELLIPSIZE_END,
+                NULL);
+  column = gtk_tree_view_column_new_with_attributes ("Description", renderer,
+                                                     "text", COL_DESCRIPTION,
+                                                     NULL);
+  gtk_tree_view_column_set_expand (column, TRUE);
+  gtk_tree_view_append_column (GTK_TREE_VIEW (self->search_view), column);
+
+  gtk_container_add (GTK_CONTAINER (self->search_scrolled), search_view);
+
+  g_signal_connect (self->search_view, "row-activated",
+                    G_CALLBACK (on_search_row_activated), self);
+  g_signal_connect (self->search_view, "button-press-event",
+                    G_CALLBACK (on_search_button_press_event), self);
+
+  self->filter_string = g_strdup ("");
+
+  gtk_widget_show (self->search_view);
+}
+
+static void
+add_category_view (CcWindow        *shell,
+                   CcPanelCategory  category,
+                   const char      *name)
+{
+  GtkTreeModel *filter;
+  GtkWidget *categoryview;
+
+  if (category > 0)
+    {
+      GtkWidget *separator;
+      separator = gtk_separator_new (GTK_ORIENTATION_HORIZONTAL);
+      gtk_widget_set_margin_top (separator, 11);
+      gtk_widget_set_margin_bottom (separator, 10);
+      gtk_box_pack_start (GTK_BOX (shell->main_vbox), separator, FALSE, FALSE, 0);
+      gtk_widget_show (separator);
+    }
+
+  /* create new category view for this category */
+  filter = gtk_tree_model_filter_new (GTK_TREE_MODEL (shell->store),
+                                      NULL);
+  gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (filter),
+                                          (GtkTreeModelFilterVisibleFunc) category_filter_func,
+                                          GINT_TO_POINTER (category), NULL);
+
+  categoryview = cc_shell_category_view_new (name, filter);
+  gtk_box_pack_start (GTK_BOX (shell->main_vbox), categoryview, FALSE, TRUE, 0);
+
+  g_signal_connect (cc_shell_category_view_get_item_view (CC_SHELL_CATEGORY_VIEW (categoryview)),
+                    "desktop-item-activated",
+                    G_CALLBACK (item_activated_cb), shell);
+
+  gtk_widget_show (categoryview);
+
+  g_signal_connect (cc_shell_category_view_get_item_view (CC_SHELL_CATEGORY_VIEW (categoryview)),
+                    "focus-in-event",
+                    G_CALLBACK (category_focus_in), shell);
+  g_signal_connect (cc_shell_category_view_get_item_view (CC_SHELL_CATEGORY_VIEW (categoryview)),
+                    "focus-out-event",
+                    G_CALLBACK (category_focus_out), shell);
+  g_signal_connect (cc_shell_category_view_get_item_view (CC_SHELL_CATEGORY_VIEW (categoryview)),
+                    "keynav-failed",
+                    G_CALLBACK (categories_keynav_failed), shell);
+}
+
+static void
+setup_model (CcWindow *shell)
+{
+ shell->store = (GtkListStore *) cc_shell_model_new ();
+
+  /* Add categories */
+  add_category_view (shell, CC_CATEGORY_PERSONAL, C_("category", "Personal"));
+  add_category_view (shell, CC_CATEGORY_HARDWARE, C_("category", "Hardware"));
+  add_category_view (shell, CC_CATEGORY_SYSTEM, C_("category", "System"));
+
+  cc_panel_loader_fill_model (CC_SHELL_MODEL (shell->store));
+}
+
+static void
+previous_button_clicked_cb (GtkButton *button,
+                            CcWindow  *shell)
+{
+  g_debug ("Num previous panels? %d", g_queue_get_length (shell->previous_panels));
+  if (g_queue_is_empty (shell->previous_panels)) {
+    shell_show_overview_page (shell);
+  } else {
+    char *panel_name;
+
+    panel_name = g_queue_pop_head (shell->previous_panels);
+    g_debug ("About to go to previous panel '%s'", panel_name);
+    cc_window_set_active_panel_from_id (CC_SHELL (shell), panel_name, NULL, NULL);
+    g_free (panel_name);
+  }
+}
+
+static void
+stack_page_notify_cb (GtkStack     *stack,
+                      GParamSpec  *spec,
+                      CcWindow    *self)
+{
+  int nat_height;
+  const char *id;
+
+  id = gtk_stack_get_visible_child_name (stack);
+
+  /* make sure the home button is shown on all pages except the overview page */
+
+  if (g_strcmp0 (id, OVERVIEW_PAGE) == 0 || g_strcmp0 (id, SEARCH_PAGE) == 0)
+    {
+      gint header_height, maximum_height;
+
+      gtk_widget_hide (self->previous_button);
+      gtk_widget_show (self->search_button);
+      gtk_widget_show (self->search_bar);
+      gtk_widget_hide (self->lock_button);
+
+      gtk_widget_get_preferred_height_for_width (GTK_WIDGET (self->main_vbox),
+                                                 FIXED_WIDTH, NULL, &nat_height);
+      gtk_widget_get_preferred_height_for_width (GTK_WIDGET (self->header),
+                                                 FIXED_WIDTH, NULL, &header_height);
+
+      /* find the maximum height by using the monitor height minus an allowance
+       * for title bar, etc. */
+      maximum_height = get_monitor_height (self) - 100;
+
+      if (maximum_height > 0 && nat_height + header_height > maximum_height)
+        nat_height = maximum_height - header_height;
+
+      gtk_scrolled_window_set_min_content_height (GTK_SCROLLED_WINDOW (self->scrolled_window),
+                                                  self->small_screen == SMALL_SCREEN_TRUE ? 
SMALL_SCREEN_FIXED_HEIGHT : nat_height);
+    }
+  else
+    {
+      gtk_widget_show (self->previous_button);
+      gtk_widget_hide (self->search_button);
+      gtk_widget_hide (self->search_bar);
+      /* set the scrolled window small so that it doesn't force
+         the window to be larger than this panel */
+      gtk_widget_get_preferred_height_for_width (GTK_WIDGET (self),
+                                                 FIXED_WIDTH, NULL, &nat_height);
+      gtk_scrolled_window_set_min_content_height (GTK_SCROLLED_WINDOW (self->scrolled_window), 
MIN_ICON_VIEW_HEIGHT);
+      gtk_window_resize (GTK_WINDOW (self),
+                         FIXED_WIDTH,
+                         nat_height);
+    }
+}
+
+/* CcShell implementation */
+static void
+_shell_embed_widget_in_header (CcShell      *shell,
+                               GtkWidget    *widget)
+{
+  CcWindow *self = CC_WINDOW (shell);
+
+  /* add to header */
+  gtk_box_pack_end (GTK_BOX (self->top_right_box), widget, FALSE, FALSE, 0);
+  g_ptr_array_add (self->custom_widgets, g_object_ref (widget));
+
+  gtk_size_group_add_widget (self->header_sizegroup, widget);
+}
+
+/* CcShell implementation */
+static gboolean
+cc_window_set_active_panel_from_id (CcShell      *shell,
+                                    const gchar  *start_id,
+                                    GVariant     *parameters,
+                                    GError      **err)
+{
+  GtkTreeIter iter;
+  gboolean iter_valid;
+  gchar *name = NULL;
+  GIcon *gicon = NULL;
+  CcWindow *self = CC_WINDOW (shell);
+  GtkWidget *old_panel;
+
+  /* When loading the same panel again, just set its parameters */
+  if (g_strcmp0 (self->current_panel_id, start_id) == 0)
+    {
+      g_object_set (G_OBJECT (self->current_panel), "parameters", parameters, NULL);
+      return TRUE;
+    }
+
+  /* clear any custom widgets */
+  _shell_remove_all_custom_widgets (self);
+
+  iter_valid = gtk_tree_model_get_iter_first (GTK_TREE_MODEL (self->store),
+                                              &iter);
+
+  /* find the details for this item */
+  while (iter_valid)
+    {
+      gchar *id;
+
+      gtk_tree_model_get (GTK_TREE_MODEL (self->store), &iter,
+                          COL_NAME, &name,
+                          COL_GICON, &gicon,
+                          COL_ID, &id,
+                          -1);
+
+      if (id && !strcmp (id, start_id))
+        {
+          g_free (id);
+          break;
+        }
+      else
+        {
+          g_free (id);
+          g_free (name);
+          if (gicon)
+            g_object_unref (gicon);
+
+          name = NULL;
+          id = NULL;
+          gicon = NULL;
+        }
+
+      iter_valid = gtk_tree_model_iter_next (GTK_TREE_MODEL (self->store),
+                                             &iter);
+    }
+
+  old_panel = self->current_panel_box;
+
+  if (!name)
+    {
+      g_warning ("Could not find settings panel \"%s\"", start_id);
+    }
+  else if (activate_panel (CC_WINDOW (shell), start_id, parameters,
+                           name, gicon) == FALSE)
+    {
+      /* Failed to activate the panel for some reason,
+       * let's keep the old panel around instead */
+    }
+  else
+    {
+      /* Successful activation */
+      g_free (self->current_panel_id);
+      self->current_panel_id = g_strdup (start_id);
+
+      if (old_panel)
+        gtk_container_remove (GTK_CONTAINER (self->stack), old_panel);
+    }
+
+  g_free (name);
+  if (gicon)
+    g_object_unref (gicon);
+
+  return TRUE;
+}
+
+static gboolean
+_shell_set_active_panel_from_id (CcShell      *shell,
+                                 const gchar  *start_id,
+                                 GVariant     *parameters,
+                                 GError      **err)
+{
+  add_current_panel_to_history (shell, start_id);
+  return cc_window_set_active_panel_from_id (shell, start_id, parameters, err);
+}
+
+static GtkWidget *
+_shell_get_toplevel (CcShell *shell)
+{
+  return GTK_WIDGET (shell);
+}
+
+/* GObject Implementation */
+static void
+cc_window_get_property (GObject    *object,
+                        guint       property_id,
+                        GValue     *value,
+                        GParamSpec *pspec)
+{
+  CcWindow *self = CC_WINDOW (object);
+
+  switch (property_id)
+    {
+    case PROP_ACTIVE_PANEL:
+      g_value_set_object (value, self->active_panel);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+    }
+}
+
+static void
+set_active_panel (CcWindow *shell,
+                  CcPanel *panel)
+{
+  g_return_if_fail (CC_IS_SHELL (shell));
+  g_return_if_fail (panel == NULL || CC_IS_PANEL (panel));
+
+  if (panel != shell->active_panel)
+    {
+      /* remove the old panel */
+      g_clear_object (&shell->active_panel);
+
+      /* set the new panel */
+      if (panel)
+        {
+          shell->active_panel = g_object_ref (panel);
+        }
+      else
+        {
+          shell_show_overview_page (shell);
+        }
+      g_object_notify (G_OBJECT (shell), "active-panel");
+    }
+}
+
+static void
+cc_window_set_property (GObject      *object,
+                        guint         property_id,
+                        const GValue *value,
+                        GParamSpec   *pspec)
+{
+  CcWindow *shell = CC_WINDOW (object);
+
+  switch (property_id)
+    {
+    case PROP_ACTIVE_PANEL:
+      set_active_panel (shell, g_value_get_object (value));
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+    }
+}
+
+static void
+cc_window_dispose (GObject *object)
+{
+  CcWindow *self = CC_WINDOW (object);
+
+  /* Avoid receiving notifications about the pages changing
+   * when destroying the children one-by-one */
+  if (self->stack)
+    {
+      g_signal_handlers_disconnect_by_func (self->stack, stack_page_notify_cb, object);
+      self->stack = NULL;
+    }
+
+  g_free (self->current_panel_id);
+  self->current_panel_id = NULL;
+
+  if (self->custom_widgets)
+    {
+      g_ptr_array_unref (self->custom_widgets);
+      self->custom_widgets = NULL;
+    }
+
+  g_clear_object (&self->store);
+  g_clear_object (&self->search_filter);
+  g_clear_object (&self->active_panel);
+  g_clear_object (&self->header_sizegroup);
+
+  if (self->previous_panels)
+    {
+      g_queue_free_full (self->previous_panels, g_free);
+      self->previous_panels = NULL;
+    }
+
+  G_OBJECT_CLASS (cc_window_parent_class)->dispose (object);
+}
+
+static void
+cc_window_finalize (GObject *object)
+{
+  CcWindow *self = CC_WINDOW (object);
+
+  g_free (self->filter_string);
+  g_strfreev (self->filter_terms);
+
+  G_OBJECT_CLASS (cc_window_parent_class)->finalize (object);
+}
+
+static void
+cc_shell_iface_init (CcShellInterface *iface)
+{
+  iface->set_active_panel_from_id = _shell_set_active_panel_from_id;
+  iface->embed_widget_in_header = _shell_embed_widget_in_header;
+  iface->get_toplevel = _shell_get_toplevel;
+}
+
+static void
+cc_window_class_init (CcWindowClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->get_property = cc_window_get_property;
+  object_class->set_property = cc_window_set_property;
+  object_class->dispose = cc_window_dispose;
+  object_class->finalize = cc_window_finalize;
+
+  g_object_class_override_property (object_class, PROP_ACTIVE_PANEL, "active-panel");
+}
+
+static gboolean
+window_button_release_event (GtkWidget          *win,
+                            GdkEventButton     *event,
+                            CcWindow           *self)
+{
+  /* back button */
+  if (event->button == MOUSE_BACK_BUTTON)
+    shell_show_overview_page (self);
+  return FALSE;
+}
+
+static gboolean
+window_key_press_event (GtkWidget   *win,
+                        GdkEventKey *event,
+                        CcWindow    *self)
+{
+  GdkKeymap *keymap;
+  gboolean retval;
+  GdkModifierType state;
+  gboolean is_rtl;
+  gboolean overview;
+  gboolean search;
+  const gchar *id;
+
+  retval = GDK_EVENT_PROPAGATE;
+  state = event->state;
+  keymap = gdk_keymap_get_default ();
+  gdk_keymap_add_virtual_modifiers (keymap, &state);
+  state = state & gtk_accelerator_get_default_mod_mask ();
+  is_rtl = gtk_widget_get_direction (win) == GTK_TEXT_DIR_RTL;
+
+  id = gtk_stack_get_visible_child_name (GTK_STACK (self->stack));
+  overview = g_str_equal (id, OVERVIEW_PAGE);
+  search = g_str_equal (id, SEARCH_PAGE);
+
+  if ((overview || search) &&
+      gtk_search_bar_handle_event (GTK_SEARCH_BAR (self->search_bar), (GdkEvent*) event) == GDK_EVENT_STOP)
+    return GDK_EVENT_STOP;
+
+  if (state == GDK_CONTROL_MASK)
+    {
+      switch (event->keyval)
+        {
+          case GDK_KEY_s:
+          case GDK_KEY_S:
+          case GDK_KEY_f:
+          case GDK_KEY_F:
+            if (!overview && !search)
+              break;
+            retval = !gtk_search_bar_get_search_mode (GTK_SEARCH_BAR (self->search_bar));
+            gtk_search_bar_set_search_mode (GTK_SEARCH_BAR (self->search_bar), retval);
+            if (retval)
+              gtk_widget_grab_focus (self->search_entry);
+            retval = GDK_EVENT_STOP;
+            break;
+          case GDK_KEY_Q:
+          case GDK_KEY_q:
+            gtk_widget_destroy (GTK_WIDGET (self));
+            retval = GDK_EVENT_STOP;
+            break;
+          case GDK_KEY_W:
+          case GDK_KEY_w:
+            if (!overview)
+              shell_show_overview_page (self);
+            retval = GDK_EVENT_STOP;
+            break;
+        }
+    }
+  else if (state == GDK_MOD1_MASK && event->keyval == GDK_KEY_Up)
+    {
+      if (!overview)
+        shell_show_overview_page (self);
+      retval = GDK_EVENT_STOP;
+    }
+  else if ((!is_rtl && state == GDK_MOD1_MASK && event->keyval == GDK_KEY_Left) ||
+           (is_rtl && state == GDK_MOD1_MASK && event->keyval == GDK_KEY_Right) ||
+           event->keyval == GDK_KEY_Back)
+    {
+      previous_button_clicked_cb (NULL, self);
+      retval = GDK_EVENT_STOP;
+    }
+  return retval;
+}
+
+static gint
+get_monitor_height (CcWindow *self)
+{
+  GdkScreen *screen;
+  GdkRectangle rect;
+
+  if (self->monitor_num < 0)
+    return 0;
+
+  /* We cannot use workarea here, as this wouldn't
+   * be updated when we read it after a monitors-changed signal */
+  screen = gtk_widget_get_screen (GTK_WIDGET (self));
+  gdk_screen_get_monitor_geometry (screen, self->monitor_num, &rect);
+
+  return rect.height;
+}
+
+static gboolean
+update_monitor_number (CcWindow *self)
+{
+  gboolean changed = FALSE;
+  GtkWidget *widget;
+  GdkScreen *screen;
+  GdkWindow *window;
+  int monitor;
+
+  widget = GTK_WIDGET (self);
+
+  window = gtk_widget_get_window (widget);
+  screen = gtk_widget_get_screen (widget);
+  monitor = gdk_screen_get_monitor_at_window (screen, window);
+  if (self->monitor_num != monitor)
+    {
+      self->monitor_num = monitor;
+      changed = TRUE;
+    }
+
+  return changed;
+}
+
+static CcSmallScreen
+is_small (CcWindow *self)
+{
+  if (get_monitor_height (self) <= FIXED_HEIGHT)
+    return SMALL_SCREEN_TRUE;
+  return SMALL_SCREEN_FALSE;
+}
+
+static void
+update_small_screen_settings (CcWindow *self)
+{
+  CcSmallScreen small;
+
+  update_monitor_number (self);
+  small = is_small (self);
+
+  if (small == SMALL_SCREEN_TRUE)
+    {
+      gtk_window_set_resizable (GTK_WINDOW (self), TRUE);
+
+      if (self->small_screen != small)
+        gtk_window_maximize (GTK_WINDOW (self));
+    }
+  else
+    {
+      if (self->small_screen != small)
+        gtk_window_unmaximize (GTK_WINDOW (self));
+
+      gtk_window_set_resizable (GTK_WINDOW (self), FALSE);
+    }
+
+  self->small_screen = small;
+
+  /* And update the minimum sizes */
+  stack_page_notify_cb (GTK_STACK (self->stack), NULL, self);
+}
+
+static gboolean
+main_window_configure_cb (GtkWidget *widget,
+                          GdkEvent  *event,
+                          CcWindow  *self)
+{
+  update_small_screen_settings (self);
+  return FALSE;
+}
+
+static void
+application_set_cb (GObject    *object,
+                    GParamSpec *pspec,
+                    CcWindow   *self)
+{
+  /* update small screen settings now - to avoid visible resizing, we want
+   * to do it before showing the window, and GtkApplicationWindow cannot be
+   * realized unless its application property has been set */
+  if (gtk_window_get_application (GTK_WINDOW (self)))
+    {
+      gtk_widget_realize (GTK_WIDGET (self));
+      update_small_screen_settings (self);
+    }
+}
+
+static void
+monitors_changed_cb (GdkScreen *screen,
+                     CcWindow  *self)
+{
+  /* We reset small_screen_set to make sure that the
+   * window gets maximised if need be, in update_small_screen_settings() */
+  self->small_screen = SMALL_SCREEN_UNSET;
+  update_small_screen_settings (self);
+}
+
+static void
+gdk_window_set_cb (GObject    *object,
+                   GParamSpec *pspec,
+                   CcWindow   *self)
+{
+  GdkWindow *window;
+  gchar *str;
+
+  if (!GDK_IS_X11_DISPLAY (gdk_display_get_default ()))
+    return;
+
+  window = gtk_widget_get_window (GTK_WIDGET (self));
+
+  if (!window)
+    return;
+
+  str = g_strdup_printf ("%u", (guint) GDK_WINDOW_XID (window));
+  g_setenv ("GNOME_CONTROL_CENTER_XID", str, TRUE);
+  g_free (str);
+}
+
+static gboolean
+window_map_event_cb (GtkWidget *widget,
+                     GdkEvent  *event,
+                     CcWindow  *self)
+{
+  /* If focus ends up in a category icon view one of the items is
+   * immediately selected which looks odd when we are starting up, so
+   * we explicitly unset the focus here. */
+  gtk_window_set_focus (GTK_WINDOW (self), NULL);
+  return GDK_EVENT_PROPAGATE;
+}
+
+static void
+create_main_page (CcWindow *self)
+{
+  GtkStyleContext *context;
+
+  self->scrolled_window = gtk_scrolled_window_new (NULL, NULL);
+  context = gtk_widget_get_style_context (self->scrolled_window);
+  gtk_style_context_add_class (context, "view");
+  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (self->scrolled_window),
+                                  GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
+  gtk_stack_add_named (GTK_STACK (self->stack), self->scrolled_window, OVERVIEW_PAGE);
+
+  self->main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
+  gtk_widget_set_margin_top (self->main_vbox, 8);
+  gtk_widget_set_margin_bottom (self->main_vbox, 8);
+  gtk_widget_set_margin_start (self->main_vbox, 12);
+  gtk_widget_set_margin_end (self->main_vbox, 12);
+  gtk_container_set_focus_vadjustment (GTK_CONTAINER (self->main_vbox),
+                                       gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW 
(self->scrolled_window)));
+  gtk_container_add (GTK_CONTAINER (self->scrolled_window), self->main_vbox);
+
+  gtk_widget_set_size_request (self->scrolled_window, FIXED_WIDTH, -1);
+
+  /* load the available settings panels */
+  setup_model (self);
+}
+
+static void
+create_search_page (CcWindow *self)
+{
+  self->search_scrolled = gtk_scrolled_window_new (NULL, NULL);
+  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (self->search_scrolled),
+                                  GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
+  gtk_stack_add_named (GTK_STACK (self->stack), self->search_scrolled, SEARCH_PAGE);
+
+  /* setup search functionality */
+  setup_search (self);
+}
+
+static void
+create_header (CcWindow *self)
+{
+  GtkWidget *image;
+  AtkObject *accessible;
+
+  self->header = gtk_header_bar_new ();
+  gtk_header_bar_set_show_close_button (GTK_HEADER_BAR (self->header), TRUE);
+
+  self->header_sizegroup = gtk_size_group_new (GTK_SIZE_GROUP_VERTICAL);
+
+  /* previous button */
+  self->previous_button = gtk_button_new_from_icon_name ("go-previous-symbolic", GTK_ICON_SIZE_MENU);
+  gtk_widget_set_valign (self->previous_button, GTK_ALIGN_CENTER);
+  gtk_widget_set_no_show_all (self->previous_button, TRUE);
+  accessible = gtk_widget_get_accessible (self->previous_button);
+  atk_object_set_name (accessible, _("All Settings"));
+  gtk_header_bar_pack_start (GTK_HEADER_BAR (self->header), self->previous_button);
+  g_signal_connect (self->previous_button, "clicked", G_CALLBACK (previous_button_clicked_cb), self);
+  gtk_size_group_add_widget (self->header_sizegroup, self->previous_button);
+
+  /* toggle search button */
+  self->search_button = gtk_toggle_button_new ();
+  image = gtk_image_new_from_icon_name ("edit-find-symbolic", GTK_ICON_SIZE_MENU);
+  gtk_button_set_image (GTK_BUTTON (self->search_button), image);
+  gtk_widget_set_valign (self->search_button, GTK_ALIGN_CENTER);
+  gtk_style_context_add_class (gtk_widget_get_style_context (self->search_button),
+                               "image-button");
+  gtk_header_bar_pack_end (GTK_HEADER_BAR (self->header), self->search_button);
+
+  self->top_right_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+  gtk_header_bar_pack_end (GTK_HEADER_BAR (self->header), self->top_right_box);
+
+  self->lock_button = gtk_lock_button_new (NULL);
+  gtk_style_context_add_class (gtk_widget_get_style_context (self->lock_button),
+                               "text-button");
+  gtk_widget_set_valign (self->lock_button, GTK_ALIGN_CENTER);
+  gtk_widget_set_no_show_all (self->lock_button, TRUE);
+  gtk_container_add (GTK_CONTAINER (self->top_right_box), self->lock_button);
+  gtk_size_group_add_widget (self->header_sizegroup, self->lock_button);
+}
+
+static void
+create_window (CcWindow *self)
+{
+  GtkWidget *box;
+  GdkScreen *screen;
+
+  box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
+  gtk_container_add (GTK_CONTAINER (self), box);
+
+  create_header (self);
+  gtk_window_set_titlebar (GTK_WINDOW (self), self->header);
+  gtk_header_bar_set_title (GTK_HEADER_BAR (self->header), _(DEFAULT_WINDOW_TITLE));
+  gtk_widget_show_all (self->header);
+
+  /* search bar */
+  self->search_bar = gtk_search_bar_new ();
+  self->search_entry = gtk_search_entry_new ();
+  gtk_entry_set_width_chars (GTK_ENTRY (self->search_entry), 30);
+  g_signal_connect (self->search_entry, "search-changed", G_CALLBACK (search_entry_changed_cb), self);
+  g_signal_connect (self->search_entry, "key-press-event", G_CALLBACK (search_entry_key_press_event_cb), 
self);
+  gtk_container_add (GTK_CONTAINER (self->search_bar), self->search_entry);
+  gtk_container_add (GTK_CONTAINER (box), self->search_bar);
+
+  g_object_bind_property (self->search_button, "active",
+                          self->search_bar, "search-mode-enabled",
+                          G_BINDING_BIDIRECTIONAL);
+
+  self->stack = gtk_stack_new ();
+  gtk_stack_set_homogeneous (GTK_STACK (self->stack), TRUE);
+  gtk_stack_set_transition_type (GTK_STACK (self->stack), GTK_STACK_TRANSITION_TYPE_CROSSFADE);
+  gtk_box_pack_start (GTK_BOX (box), self->stack, TRUE, TRUE, 0);
+
+  create_main_page (self);
+  create_search_page (self);
+
+  /* connect various signals */
+  screen = gtk_widget_get_screen (GTK_WIDGET (self));
+  g_signal_connect (screen, "monitors-changed", G_CALLBACK (monitors_changed_cb), self);
+
+  g_signal_connect (self, "configure-event", G_CALLBACK (main_window_configure_cb), self);
+  g_signal_connect (self, "notify::application", G_CALLBACK (application_set_cb), self);
+  g_signal_connect_after (self, "key_press_event",
+                          G_CALLBACK (window_key_press_event), self);
+  gtk_widget_add_events (GTK_WIDGET (self), GDK_BUTTON_RELEASE_MASK);
+  g_signal_connect (self, "button-release-event",
+                    G_CALLBACK (window_button_release_event), self);
+  g_signal_connect (self, "map-event", G_CALLBACK (window_map_event_cb), self);
+
+  g_signal_connect (self, "notify::window", G_CALLBACK (gdk_window_set_cb), self);
+
+  g_signal_connect (self->stack, "notify::visible-child",
+                    G_CALLBACK (stack_page_notify_cb), self);
+
+  gtk_widget_show_all (box);
+}
+
+static void
+cc_window_init (CcWindow *self)
+{
+  self->monitor_num = -1;
+  self->small_screen = SMALL_SCREEN_UNSET;
+
+  create_window (self);
+
+  self->previous_panels = g_queue_new ();
+
+  /* keep a list of custom widgets to unload on panel change */
+  self->custom_widgets = g_ptr_array_new_with_free_func ((GDestroyNotify) g_object_unref);
+
+  stack_page_notify_cb (GTK_STACK (self->stack), NULL, self);
+}
+
+CcWindow *
+cc_window_new (GtkApplication *application)
+{
+  g_return_val_if_fail (GTK_IS_APPLICATION (application), NULL);
+
+  return g_object_new (CC_TYPE_WINDOW,
+                       "application", application,
+                       "resizable", TRUE,
+                       "title", _("Settings"),
+                       "icon-name", DEFAULT_WINDOW_ICON_NAME,
+                       "window-position", GTK_WIN_POS_CENTER,
+                       NULL);
+}
+
+void
+cc_window_present (CcWindow *center)
+{
+  gtk_window_present (GTK_WINDOW (center));
+}
+
+void
+cc_window_show (CcWindow *center)
+{
+  gtk_window_present (GTK_WINDOW (center));
+}
diff --git a/shell/alt/cc-window.h b/shell/alt/cc-window.h
new file mode 100644
index 0000000..cc9ebb6
--- /dev/null
+++ b/shell/alt/cc-window.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2010 Intel, Inc.
+ *
+ * The Control Center 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.
+ *
+ * The Control Center 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 the Control Center; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Author: Thomas Wood <thos gnome org>
+ */
+
+#ifndef _CC_WINDOW_H
+#define _CC_WINDOW_H
+
+#include <glib-object.h>
+#include "cc-shell.h"
+
+G_BEGIN_DECLS
+
+#define CC_TYPE_WINDOW (cc_window_get_type ())
+
+G_DECLARE_FINAL_TYPE (CcWindow, cc_window, CC, WINDOW, GtkApplicationWindow)
+
+CcWindow *cc_window_new (GtkApplication *application);
+
+void cc_window_present (CcWindow *center);
+
+void cc_window_show (CcWindow *center);
+
+void cc_window_set_overview_page (CcWindow *center);
+
+void cc_window_set_search_item (CcWindow *center,
+                                const char *search);
+
+G_END_DECLS
+
+#endif /* _CC_WINDOW_H */


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