placesview: simplify codewip/gbsneto/places-view

Since we started adding a persistent Computer item,
all the code related to the view modes became obsolete,
since the view is never empty anymore. So, drop this
dead code and use the plain stack to manage the empty
search results view.

Also, this patch fixed a very annoying keyboard navigation
issue where we couldn't go from the On This Computer to Networks
lists, because they were two separate widgets. Merge the two
lists into a single one, and update headers accordingly.

2 files changed, 114 insertions, 297 deletions

diff --git a/gtk/gtkplacesview.c b/gtk/gtkplacesview.c
index 628376ee5e..e44867d5f3 100644
--- a/gtk/gtkplacesview.c
+++ b/gtk/gtkplacesview.c
@@ -47,19 +47,11 @@
  * selects a location to open in the view.
  */
 
-typedef enum
-{
-  MODE_BROWSE,
-  MODE_EMPTY,
-  MODE_EMPTY_SEARCH
-} PlacesViewMode;
-
 struct _GtkPlacesViewPrivate
 {
   GVolumeMonitor                *volume_monitor;
   GtkPlacesOpenFlags             open_flags;
   GtkPlacesOpenFlags             current_open_flags;
-  PlacesViewMode                 mode;
 
   GFile                         *server_list_file;
   GFileMonitor                  *server_list_monitor;
@@ -71,10 +63,7 @@ struct _GtkPlacesViewPrivate
   GtkWidget                     *actionbar;
   GtkWidget                     *address_entry;
   GtkWidget                     *connect_button;
-  GtkWidget                     *drives_box;
-  GtkWidget                     *drives_listbox;
-  GtkWidget                     *network_grid;
-  GtkWidget                     *network_listbox;
+  GtkWidget                     *listbox;
   GtkWidget                     *popup_menu;
   GtkWidget                     *recent_servers_listbox;
   GtkWidget                     *recent_servers_popover;
@@ -595,96 +584,40 @@ populate_servers (GtkPlacesView *view)
 }
 
 static void
-places_view_mode_set (GtkPlacesView  *view,
-                      PlacesViewMode  mode)
-{
-  GtkPlacesViewPrivate *priv;
-
-  priv = gtk_places_view_get_instance_private (view);
-
-  gtk_widget_set_visible (priv->network_grid, !priv->local_only);
-
-  if (priv->mode != mode)
-    {
-      priv->mode = mode;
-
-      switch (mode)
-        {
-        case MODE_BROWSE:
-          gtk_stack_set_visible_child_name (GTK_STACK (priv->stack), "browse");
-          break;
-
-        case MODE_EMPTY:
-          gtk_stack_set_visible_child_name (GTK_STACK (priv->stack), "empty");
-          break;
-
-        case MODE_EMPTY_SEARCH:
-          gtk_stack_set_visible_child_name (GTK_STACK (priv->stack), "search");
-          break;
-        }
-    }
-}
-
-static void
 update_view_mode (GtkPlacesView *view)
 {
   GtkPlacesViewPrivate *priv;
   GList *children;
   GList *l;
-  gboolean show_drives;
-  gboolean show_networks;
+  gboolean show_listbox;
 
   priv = gtk_places_view_get_instance_private (view);
-  show_drives = FALSE;
-  show_networks = FALSE;
+  show_listbox = FALSE;
 
   /* drives */
-  children = gtk_container_get_children (GTK_CONTAINER (priv->drives_listbox));
+  children = gtk_container_get_children (GTK_CONTAINER (priv->listbox));
 
   for (l = children; l; l = l->next)
     {
       /* GtkListBox filter rows by changing their GtkWidget::child-visible property */
       if (gtk_widget_get_child_visible (l->data))
         {
-          show_drives = TRUE;
+          show_listbox = TRUE;
           break;
         }
     }
 
   g_list_free (children);
 
-  /* networks */
-  if (!priv->local_only)
+  if (!show_listbox &&
+      priv->search_query &&
+      priv->search_query[0] != '\0')
     {
-      children = gtk_container_get_children (GTK_CONTAINER (priv->network_listbox));
-
-      for (l = children; l; l = l->next)
-        {
-          /* GtkListBox filter rows by changing their GtkWidget::child-visible property */
-          if (gtk_widget_get_child_visible (l->data))
-            {
-              show_networks = TRUE;
-              break;
-            }
-        }
-
-      g_list_free (children);
-    }
-
-  gtk_widget_set_visible (priv->drives_box, show_drives);
-  gtk_widget_set_visible (priv->network_grid, show_networks);
-
-  if (!show_drives && !show_networks)
-    {
-      if (priv->search_query && priv->search_query[0] != '\0')
-        places_view_mode_set (view, MODE_EMPTY_SEARCH);
-      else
-        places_view_mode_set (view, MODE_EMPTY);
-
+        gtk_stack_set_visible_child_name (GTK_STACK (priv->stack), "empty-search");
     }
   else
     {
-      places_view_mode_set (view, MODE_BROWSE);
+      gtk_stack_set_visible_child_name (GTK_STACK (priv->stack), "browse");
     }
 }
 
@@ -694,12 +627,10 @@ insert_row (GtkPlacesView *view,
             gboolean       is_network)
 {
   GtkPlacesViewPrivate *priv;
-  GtkWidget *container;
-  GtkWidget *list;
 
   priv = gtk_places_view_get_instance_private (view);
-  list = is_network ? priv->network_listbox : priv->drives_listbox;
-  container = is_network ? priv->network_grid : priv->drives_box;
+
+  g_object_set_data (G_OBJECT (row), "is-network", GINT_TO_POINTER (is_network));
 
   g_signal_connect_swapped (gtk_places_view_row_get_event_box (GTK_PLACES_VIEW_ROW (row)),
                             "button-press-event",
@@ -716,15 +647,7 @@ insert_row (GtkPlacesView *view,
                     G_CALLBACK (on_eject_button_clicked),
                     row);
 
-  gtk_container_add (GTK_CONTAINER (list), row);
-
-  if (!priv->local_only || (priv->local_only && !is_network))
-    {
-      gtk_widget_show (container);
-
-      if (priv->mode == MODE_EMPTY)
-        places_view_mode_set (view, MODE_BROWSE);
-    }
+  gtk_container_add (GTK_CONTAINER (priv->listbox), row);
 }
 
 static void
@@ -892,19 +815,9 @@ update_places (GtkPlacesView *view)
   priv = gtk_places_view_get_instance_private (view);
 
   /* Clear all previously added items */
-  children = gtk_container_get_children (GTK_CONTAINER (priv->drives_listbox));
+  children = gtk_container_get_children (GTK_CONTAINER (priv->listbox));
   g_list_free_full (children, (GDestroyNotify) gtk_widget_destroy);
 
-  children = gtk_container_get_children (GTK_CONTAINER (priv->network_listbox));
-  g_list_free_full (children, (GDestroyNotify) gtk_widget_destroy);
-
-  /*
-   * Hide both networks and drives lists, and only show them when
-   * a row is added.
-   */
-  gtk_widget_hide (priv->drives_box);
-  gtk_widget_hide (priv->network_grid);
-
   /* Add "Computer" row */
   add_computer (view);
 
@@ -970,15 +883,7 @@ update_places (GtkPlacesView *view)
   /* load saved servers */
   populate_servers (view);
 
-  if (priv->search_query && priv->search_query[0] != '\0')
-    {
-      update_view_mode (view);
-    }
-  else if (!gtk_widget_get_visible (priv->drives_box) &&
-           !gtk_widget_get_visible (priv->network_grid))
-    {
-      places_view_mode_set (view, MODE_EMPTY);
-    }
+  update_view_mode (view);
 }
 
 static void
@@ -1676,6 +1581,7 @@ listbox_filter_func (GtkListBoxRow *row,
                      gpointer       user_data)
 {
   GtkPlacesViewPrivate *priv;
+  gboolean is_network;
   gboolean retval;
   gchar *name;
   gchar *path;
@@ -1683,6 +1589,11 @@ listbox_filter_func (GtkListBoxRow *row,
   priv = gtk_places_view_get_instance_private (GTK_PLACES_VIEW (user_data));
   retval = FALSE;
 
+  is_network = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (row), "is-network"));
+
+  if (is_network && priv->local_only)
+    return FALSE;
+
   if (!priv->search_query || priv->search_query[0] == '\0')
     return TRUE;
 
@@ -1704,6 +1615,83 @@ listbox_filter_func (GtkListBoxRow *row,
 }
 
 static void
+listbox_header_func (GtkListBoxRow *row,
+                     GtkListBoxRow *before,
+                     gpointer       user_data)
+{
+  gboolean row_is_network;
+  gchar *text;
+
+  text = NULL;
+  row_is_network = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (row), "is-network"));
+
+  if (!before)
+    {
+      text = g_strdup_printf ("<b>%s</b>", row_is_network ? _("Networks") : _("On This Computer"));
+    }
+  else
+    {
+      gboolean before_is_network;
+
+      before_is_network = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (before), "is-network"));
+
+      if (before_is_network != row_is_network)
+        text = g_strdup_printf ("<b>%s</b>", row_is_network ? _("Networks") : _("On This Computer"));
+
+    }
+
+  if (text)
+    {
+      GtkWidget *header;
+      GtkWidget *label;
+      GtkWidget *separator;
+
+      header = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
+
+      separator = gtk_separator_new (GTK_ORIENTATION_HORIZONTAL);
+
+      label = g_object_new (GTK_TYPE_LABEL,
+                            "hexpand", TRUE,
+                            "use_markup", TRUE,
+                            "label", text,
+                            "xalign", 0,
+                            NULL);
+
+      g_object_set (label,
+                    "margin-top", 6,
+                    "margin-start", 12,
+                    "margin-end", 12,
+                    NULL);
+
+      gtk_container_add (GTK_CONTAINER (header), label);
+      gtk_container_add (GTK_CONTAINER (header), separator);
+      gtk_widget_show_all (header);
+
+      gtk_list_box_row_set_header (row, header);
+
+      g_free (text);
+    }
+  else
+    {
+      gtk_list_box_row_set_header (row, NULL);
+    }
+}
+
+static gint
+listbox_sort_func (GtkListBoxRow *row1,
+                   GtkListBoxRow *row2,
+                   gpointer       user_data)
+{
+  gboolean row1_is_network;
+  gboolean row2_is_network;
+
+  row1_is_network = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (row1), "is-network"));
+  row2_is_network = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (row2), "is-network"));
+
+  return row1_is_network - row2_is_network;
+}
+
+static void
 gtk_places_view_constructed (GObject *object)
 {
   GtkPlacesViewPrivate *priv;
@@ -1712,12 +1700,16 @@ gtk_places_view_constructed (GObject *object)
 
   G_OBJECT_CLASS (gtk_places_view_parent_class)->constructed (object);
 
-  gtk_list_box_set_filter_func (GTK_LIST_BOX (priv->drives_listbox),
+  gtk_list_box_set_sort_func (GTK_LIST_BOX (priv->listbox),
+                              listbox_sort_func,
+                              object,
+                              NULL);
+  gtk_list_box_set_filter_func (GTK_LIST_BOX (priv->listbox),
                                 listbox_filter_func,
                                 object,
                                 NULL);
-  gtk_list_box_set_filter_func (GTK_LIST_BOX (priv->network_listbox),
-                                listbox_filter_func,
+  gtk_list_box_set_header_func (GTK_LIST_BOX (priv->listbox),
+                                listbox_header_func,
                                 object,
                                 NULL);
 
@@ -1848,10 +1840,7 @@ gtk_places_view_class_init (GtkPlacesViewClass *klass)
   gtk_widget_class_bind_template_child_private (widget_class, GtkPlacesView, address_entry_completion);
   gtk_widget_class_bind_template_child_private (widget_class, GtkPlacesView, completion_store);
   gtk_widget_class_bind_template_child_private (widget_class, GtkPlacesView, connect_button);
-  gtk_widget_class_bind_template_child_private (widget_class, GtkPlacesView, drives_box);
-  gtk_widget_class_bind_template_child_private (widget_class, GtkPlacesView, drives_listbox);
-  gtk_widget_class_bind_template_child_private (widget_class, GtkPlacesView, network_grid);
-  gtk_widget_class_bind_template_child_private (widget_class, GtkPlacesView, network_listbox);
+  gtk_widget_class_bind_template_child_private (widget_class, GtkPlacesView, listbox);
   gtk_widget_class_bind_template_child_private (widget_class, GtkPlacesView, recent_servers_listbox);
   gtk_widget_class_bind_template_child_private (widget_class, GtkPlacesView, recent_servers_popover);
   gtk_widget_class_bind_template_child_private (widget_class, GtkPlacesView, recent_servers_stack);
@@ -2003,8 +1992,8 @@ gtk_places_view_set_search_query (GtkPlacesView *view,
       g_clear_pointer (&priv->search_query, g_free);
       priv->search_query = g_strdup (query_text);
 
-      gtk_list_box_invalidate_filter (GTK_LIST_BOX (priv->drives_listbox));
-      gtk_list_box_invalidate_filter (GTK_LIST_BOX (priv->network_listbox));
+      gtk_list_box_invalidate_filter (GTK_LIST_BOX (priv->listbox));
+      gtk_list_box_invalidate_headers (GTK_LIST_BOX (priv->listbox));
 
       update_view_mode (view);
     }
@@ -2059,7 +2048,7 @@ gtk_places_view_set_local_only (GtkPlacesView *view,
       priv->local_only = local_only;
 
       gtk_widget_set_visible (priv->actionbar, !local_only);
-      gtk_widget_set_visible (priv->network_grid, !local_only);
+      gtk_list_box_invalidate_filter (GTK_LIST_BOX (priv->listbox));
 
       update_view_mode (view);
 
diff --git a/gtk/ui/gtkplacesview.ui b/gtk/ui/gtkplacesview.ui
index 0a125b7185..9d2c39e9f9 100644
--- a/gtk/ui/gtkplacesview.ui
+++ b/gtk/ui/gtkplacesview.ui
@@ -151,134 +151,11 @@
                     <property name="can_focus">False</property>
                     <property name="shadow_type">none</property>
                     <child>
-                      <object class="GtkBox" id="main_box">
+                      <object class="GtkListBox" id="listbox">
                         <property name="visible">True</property>
-                        <property name="hexpand">True</property>
-                        <property name="can_focus">False</property>
-                        <property name="orientation">vertical</property>
-                        <child>
-                          <object class="GtkBox" id="drives_box">
-                            <property name="visible">True</property>
-                            <property name="can_focus">False</property>
-                            <property name="orientation">vertical</property>
-                            <child>
-                              <object class="GtkLabel">
-                                <property name="visible">True</property>
-                                <property name="margin_start">12</property>
-                                <property name="margin_end">12</property>
-                                <property name="margin_top">6</property>
-                                <property name="margin_bottom">6</property>
-                                <property name="label" translatable="yes">This Computer</property>
-                                <property name="xalign">0</property>
-                                <attributes>
-                                  <attribute name="weight" value="bold"/>
-                                </attributes>
-                              </object>
-                              <packing>
-                                <property name="expand">False</property>
-                                <property name="fill">True</property>
-                                <property name="position">0</property>
-                              </packing>
-                            </child>
-                            <child>
-                              <object class="GtkSeparator">
-                                <property name="visible">True</property>
-                              </object>
-                              <packing>
-                                <property name="expand">False</property>
-                                <property name="fill">True</property>
-                                <property name="position">1</property>
-                              </packing>
-                            </child>
-                            <child>
-                              <object class="GtkListBox" id="drives_listbox">
-                                <property name="visible">True</property>
-                                <property name="can_focus">True</property>
-                                <property name="selection_mode">none</property>
-                                <signal name="row-activated" handler="on_listbox_row_activated" object="GtkPlacesView" swapped="yes" />
-                              </object>
-                              <packing>
-                                <property name="expand">False</property>
-                                <property name="fill">True</property>
-                                <property name="position">2</property>
-                              </packing>
-                            </child>
-                          </object>
-                          <packing>
-                            <property name="expand">False</property>
-                            <property name="fill">True</property>
-                            <property name="position">0</property>
-                          </packing>
-                        </child>
-                        <child>
-                          <object class="GtkGrid" id="network_grid">
-                            <property name="visible">True</property>
-                            <property name="hexpand">True</property>
-                            <property name="can_focus">False</property>
-                            <child>
-                              <object class="GtkLabel">
-                                <property name="visible">True</property>
-                                <property name="margin_start">12</property>
-                                <property name="margin_end">12</property>
-                                <property name="margin_top">6</property>
-                                <property name="margin_bottom">6</property>
-                                <property name="hexpand">False</property>
-                                <property name="label" translatable="yes" comments="Translators: header of the Network section of the Other Locations view">Network</property>
-                                <property name="ellipsize">end</property>
-                                <property name="xalign">0</property>
-                                <attributes>
-                                  <attribute name="weight" value="bold"/>
-                                </attributes>
-                              </object>
-                              <packing>
-                                <property name="left_attach">0</property>
-                                <property name="top_attach">0</property>
-                              </packing>
-                            </child>
-                            <child>
-                              <object class="GtkSpinner" id="network_spinner">
-                                <property name="visible">True</property>
-                                <property name="halign">start</property>
-                                <property name="hexpand">True</property>
-                                <property name="can_focus">False</property>
-                              </object>
-                              <packing>
-                                <property name="left_attach">1</property>
-                                <property name="top_attach">0</property>
-                              </packing>
-                            </child>
-                            <child>
-                              <object class="GtkSeparator">
-                                <property name="visible">True</property>
-                                <property name="hexpand">True</property>
-                                <property name="can_focus">False</property>
-                              </object>
-                              <packing>
-                                <property name="left_attach">0</property>
-                                <property name="top_attach">1</property>
-                                <property name="width">2</property>
-                              </packing>
-                            </child>
-                            <child>
-                              <object class="GtkListBox" id="network_listbox">
-                                <property name="visible">True</property>
-                                <property name="can_focus">True</property>
-                                <property name="selection_mode">none</property>
-                                <signal name="row-activated" handler="on_listbox_row_activated" object="GtkPlacesView" swapped="yes" />
-                              </object>
-                              <packing>
-                                <property name="left_attach">0</property>
-                                <property name="top_attach">2</property>
-                                <property name="width">2</property>
-                              </packing>
-                            </child>
-                          </object>
-                          <packing>
-                            <property name="expand">False</property>
-                            <property name="fill">True</property>
-                            <property name="position">1</property>
-                          </packing>
-                        </child>
+                        <property name="can_focus">True</property>
+                        <property name="selection_mode">none</property>
+                        <signal name="row-activated" handler="on_listbox_row_activated" object="GtkPlacesView" swapped="yes" />
                       </object>
                     </child>
                     <style>
@@ -308,54 +185,6 @@
                 <property name="visible">True</property>
                 <property name="can_focus">False</property>
                 <property name="pixel_size">72</property>
-                <property name="icon_name">drive-harddisk-symbolic</property>
-                <style>
-                  <class name="dim-label"/>
-                </style>
-              </object>
-              <packing>
-                <property name="expand">False</property>
-                <property name="fill">True</property>
-                <property name="position">0</property>
-              </packing>
-            </child>
-            <child>
-              <object class="GtkLabel">
-                <property name="visible">True</property>
-                <property name="can_focus">False</property>
-                <property name="label" translatable="yes">No drives or networks found</property>
-                <attributes>
-                  <attribute name="weight" value="bold"/>
-                  <attribute name="scale" value="1.44"/>
-                </attributes>
-              </object>
-              <packing>
-                <property name="expand">False</property>
-                <property name="fill">True</property>
-                <property name="position">1</property>
-              </packing>
-            </child>
-          </object>
-          <packing>
-            <property name="name">empty</property>
-            <property name="position">1</property>
-          </packing>
-        </child>
-        <child>
-          <object class="GtkBox">
-            <property name="visible">True</property>
-            <property name="can_focus">False</property>
-            <property name="halign">center</property>
-            <property name="valign">center</property>
-            <property name="hexpand">True</property>
-            <property name="vexpand">True</property>
-            <property name="orientation">vertical</property>
-            <property name="spacing">12</property>
-            <child>
-              <object class="GtkImage">
-                <property name="visible">True</property>
-                <property name="can_focus">False</property>
-                <property name="pixel_size">72</property>
                 <property name="icon_name">edit-find-symbolic</property>
                 <style>
                   <class name="dim-label"/>
@@ -400,8 +229,7 @@
             </child>
           </object>
           <packing>
-            <property name="name">search</property>
-            <property name="position">2</property>
+            <property name="name">empty-search</property>
           </packing>
         </child>
       </object>