[gtk+] places sidebar: Make 'recent' work on other platforms

[Matthias Clasen <matthiasc src gnome org>]

commit a8191e7113672abbfdfe5d2f62c6eeddf730c9dd
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Jun 6 17:13:22 2015 -0400

    places sidebar: Make 'recent' work on other platforms
    
    Since nautilus merge, we were not showing 'Recent' in the sidebar
    if GIO did not support the recent: scheme. But the file chooser
    can show recent files independent of gvfs - it loads the recent
    files manually. This is relevant on Windows and OS X, where gvfs
    is typically not used.
    
    This commit adds a show-recent property which can be used to override
    the recent: scheme check. We use it in the file chooser.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=750068

 docs/reference/gtk/gtk3-sections.txt |    2 +
 gtk/gtkfilechooserwidget.c           |   20 +---------
 gtk/gtkplacessidebar.c               |   68 +++++++++++++++++++++++++++++++++-
 gtk/gtkplacessidebar.h               |    6 +++
 gtk/ui/gtkfilechooserwidget.ui       |    1 +
 5 files changed, 77 insertions(+), 20 deletions(-)
---
diff --git a/docs/reference/gtk/gtk3-sections.txt b/docs/reference/gtk/gtk3-sections.txt
index 4cd12c1..6491778 100644
--- a/docs/reference/gtk/gtk3-sections.txt
+++ b/docs/reference/gtk/gtk3-sections.txt
@@ -2638,6 +2638,8 @@ gtk_places_sidebar_set_open_flags
 gtk_places_sidebar_get_open_flags
 gtk_places_sidebar_set_location
 gtk_places_sidebar_get_location
+gtk_places_sidebar_set_show_recent
+gtk_places_sidebar_get_show_recent
 gtk_places_sidebar_set_show_desktop
 gtk_places_sidebar_get_show_desktop
 gtk_places_sidebar_add_shortcut
diff --git a/gtk/gtkfilechooserwidget.c b/gtk/gtkfilechooserwidget.c
index 22515da..232640c 100644
--- a/gtk/gtkfilechooserwidget.c
+++ b/gtk/gtkfilechooserwidget.c
@@ -3212,24 +3212,6 @@ recent_files_setting_is_enabled (GtkFileChooserWidget *impl)
   return enabled;
 }
 
-static gboolean
-recent_scheme_is_supported (void)
-{
-  const gchar * const *supported;
-
-  supported = g_vfs_get_supported_uri_schemes (g_vfs_get_default ());
-  if (supported != NULL)
-    return g_strv_contains (supported, "recent");
-
-  return FALSE;
-}
-
-static gboolean
-can_show_recent (GtkFileChooserWidget *impl)
-{
-  return recent_files_setting_is_enabled (impl) && recent_scheme_is_supported ();
-}
-
 /* Sets the file chooser to showing Recent Files or $CWD, depending on the
  * user’s settings.
  */
@@ -3241,7 +3223,7 @@ set_startup_mode (GtkFileChooserWidget *impl)
   switch (priv->startup_mode)
     {
     case STARTUP_MODE_RECENT:
-      if (can_show_recent (impl))
+      if (recent_files_setting_is_enabled (impl))
         {
           operation_mode_set (impl, OPERATION_MODE_RECENT);
           break;
diff --git a/gtk/gtkplacessidebar.c b/gtk/gtkplacessidebar.c
index 31f8eb3..f767e14 100644
--- a/gtk/gtkplacessidebar.c
+++ b/gtk/gtkplacessidebar.c
@@ -175,6 +175,8 @@ struct _GtkPlacesSidebar {
   guint mounting               : 1;
   guint  drag_data_received    : 1;
   guint drop_occured           : 1;
+  guint show_recent_set        : 1;
+  guint show_recent            : 1;
   guint show_desktop_set       : 1;
   guint show_desktop           : 1;
   guint show_connect_to_server : 1;
@@ -260,6 +262,7 @@ enum {
 enum {
   PROP_LOCATION = 1,
   PROP_OPEN_FLAGS,
+  PROP_SHOW_RECENT,
   PROP_SHOW_DESKTOP,
   PROP_SHOW_CONNECT_TO_SERVER,
   PROP_SHOW_ENTER_LOCATION,
@@ -586,7 +589,9 @@ recent_scheme_is_supported (void)
 static gboolean
 should_show_recent (GtkPlacesSidebar *sidebar)
 {
-  return recent_files_setting_is_enabled (sidebar) && recent_scheme_is_supported ();
+  return recent_files_setting_is_enabled (sidebar) &&
+         ((sidebar->show_recent_set && sidebar->show_recent) ||
+          (!sidebar->show_recent_set && recent_scheme_is_supported ()));
 }
 
 static gboolean
@@ -4309,6 +4314,10 @@ gtk_places_sidebar_set_property (GObject      *obj,
       gtk_places_sidebar_set_open_flags (sidebar, g_value_get_flags (value));
       break;
 
+    case PROP_SHOW_RECENT:
+      gtk_places_sidebar_set_show_recent (sidebar, g_value_get_boolean (value));
+      break;
+
     case PROP_SHOW_DESKTOP:
       gtk_places_sidebar_set_show_desktop (sidebar, g_value_get_boolean (value));
       break;
@@ -4349,6 +4358,10 @@ gtk_places_sidebar_get_property (GObject    *obj,
       g_value_set_flags (value, gtk_places_sidebar_get_open_flags (sidebar));
       break;
 
+    case PROP_SHOW_RECENT:
+      g_value_set_boolean (value, gtk_places_sidebar_get_show_recent (sidebar));
+      break;
+
     case PROP_SHOW_DESKTOP:
       g_value_set_boolean (value, gtk_places_sidebar_get_show_desktop (sidebar));
       break;
@@ -4690,6 +4703,12 @@ gtk_places_sidebar_class_init (GtkPlacesSidebarClass *class)
                               GTK_TYPE_PLACES_OPEN_FLAGS,
                               GTK_PLACES_OPEN_NORMAL,
                               G_PARAM_READWRITE);
+  properties[PROP_SHOW_RECENT] =
+          g_param_spec_boolean ("show-recent",
+                                P_("Show recent files"),
+                                P_("Whether the sidebar includes a builtin shortcut for recent files"),
+                                TRUE,
+                                G_PARAM_READWRITE);
   properties[PROP_SHOW_DESKTOP] =
           g_param_spec_boolean ("show-desktop",
                                 P_("Show 'Desktop'"),
@@ -4981,6 +5000,53 @@ gtk_places_sidebar_get_location (GtkPlacesSidebar *sidebar)
 }
 
 /**
+ * gtk_places_sidebar_set_show_recent:
+ * @sidebar: a places sidebar
+ * @show_recent: whether to show an item for recent files
+ *
+ * Sets whether the @sidebar should show an item for recent files.
+ * The default value for this option is determined by the desktop
+ * environment, but this function can be used to override it on a
+ * per-application basis.
+ *
+ * Since: 3.18
+ */
+void
+gtk_places_sidebar_set_show_recent (GtkPlacesSidebar *sidebar,
+                                    gboolean          show_recent)
+{
+  g_return_if_fail (GTK_IS_PLACES_SIDEBAR (sidebar));
+
+  sidebar->show_recent_set = TRUE;
+
+  show_recent = !!show_recent;
+  if (sidebar->show_recent != show_recent)
+    {
+      sidebar->show_recent = show_recent;
+      update_places (sidebar);
+      g_object_notify_by_pspec (G_OBJECT (sidebar), properties[PROP_SHOW_RECENT]);
+    }
+}
+
+/**
+ * gtk_places_sidebar_get_show_recent:
+ * @sidebar: a places sidebar
+ *
+ * Returns the value previously set with gtk_places_sidebar_set_show_recent()
+ *
+ * Returns: %TRUE if the sidebar will display a builtin shortcut for recent files
+ *
+ * Since: 3.18
+ */
+gboolean
+gtk_places_sidebar_get_show_recent (GtkPlacesSidebar *sidebar)
+{
+  g_return_val_if_fail (GTK_IS_PLACES_SIDEBAR (sidebar), FALSE);
+
+  return sidebar->show_recent;
+}
+
+/**
  * gtk_places_sidebar_set_show_desktop:
  * @sidebar: a places sidebar
  * @show_desktop: whether to show an item for the Desktop folder
diff --git a/gtk/gtkplacessidebar.h b/gtk/gtkplacessidebar.h
index f703cf8..2546db4 100644
--- a/gtk/gtkplacessidebar.h
+++ b/gtk/gtkplacessidebar.h
@@ -95,6 +95,12 @@ GDK_AVAILABLE_IN_3_10
 void               gtk_places_sidebar_set_location               (GtkPlacesSidebar   *sidebar,
                                                                   GFile              *location);
 
+GDK_AVAILABLE_IN_3_18
+gboolean           gtk_places_sidebar_get_show_recent            (GtkPlacesSidebar   *sidebar);
+GDK_AVAILABLE_IN_3_18
+void               gtk_places_sidebar_set_show_recent            (GtkPlacesSidebar   *sidebar,
+                                                                  gboolean            show_recent);
+
 GDK_AVAILABLE_IN_3_10
 gboolean           gtk_places_sidebar_get_show_desktop           (GtkPlacesSidebar   *sidebar);
 GDK_AVAILABLE_IN_3_10
diff --git a/gtk/ui/gtkfilechooserwidget.ui b/gtk/ui/gtkfilechooserwidget.ui
index 00349fb..9af256a 100644
--- a/gtk/ui/gtkfilechooserwidget.ui
+++ b/gtk/ui/gtkfilechooserwidget.ui
@@ -19,6 +19,7 @@
                 <property name="hscrollbar_policy">never</property>
                 <property name="local_only">True</property>
                 <property name="show_enter_location">True</property>
+                <property name="show_recent">True</property>
                 <style>
                   <class name="sidebar"/>
                 </style>