[nautilus/wip/antoniof/make-window-slot-final: 1/8] Revert "window, window-slot: Save and restore navigation history"

[António Fernandes <antoniof src gnome org>]

commit baa90c27cdf06af60a11ece26c77b06341c06ef0
Author: António Fernandes <antoniof gnome org>
Date:   Wed Jan 13 00:50:14 2021 +0000

    Revert "window, window-slot: Save and restore navigation history"
    
    This reverts commit 691f1cf1bde256c94e126c1a2bb111aaff630b72.
    
    It's a solid workaround, but we are going to fix the root issue.

 src/nautilus-window-slot.c | 48 ++++----------------------
 src/nautilus-window-slot.h | 13 -------
 src/nautilus-window.c      | 84 +---------------------------------------------
 3 files changed, 7 insertions(+), 138 deletions(-)
---
diff --git a/src/nautilus-window-slot.c b/src/nautilus-window-slot.c
index c443d2c89..b579ca116 100644
--- a/src/nautilus-window-slot.c
+++ b/src/nautilus-window-slot.c
@@ -198,9 +198,6 @@ nautilus_window_slot_restore_navigation_state (NautilusWindowSlot      *self,
 
     priv = nautilus_window_slot_get_instance_private (self);
 
-    /* We are restoring saved history to newly created slot with no history. */
-    g_warn_if_fail (priv->back_list == NULL && priv->forward_list == NULL);
-
     priv->back_list = g_steal_pointer (&data->back_list);
 
     priv->forward_list = g_steal_pointer (&data->forward_list);
@@ -2286,11 +2283,12 @@ nautilus_window_slot_set_content_view (NautilusWindowSlot *self,
 }
 
 void
-nautilus_window_slot_back_or_forward (NautilusWindowSlot      *self,
-                                      gboolean                 back,
-                                      guint                    distance,
-                                      NautilusWindowOpenFlags  flags)
+nautilus_window_back_or_forward (NautilusWindow          *window,
+                                 gboolean                 back,
+                                 guint                    distance,
+                                 NautilusWindowOpenFlags  flags)
 {
+    NautilusWindowSlot *self;
     GList *list;
     GFile *location;
     guint len;
@@ -2298,6 +2296,7 @@ nautilus_window_slot_back_or_forward (NautilusWindowSlot      *self,
     GFile *old_location;
     NautilusWindowSlotPrivate *priv;
 
+    self = nautilus_window_get_active_slot (window);
     priv = nautilus_window_slot_get_instance_private (self);
     list = back ? priv->back_list : priv->forward_list;
 
@@ -3735,38 +3734,3 @@ nautilus_window_slot_get_query_editor (NautilusWindowSlot *self)
 
     return priv->query_editor;
 }
-
-/*
- * Open the specified location and set up the navigation history including the
- * back and forward lists. This function is intended to be called when switching
- * between NautilusWindowSlot and NautilusOtherLocationsWindowSlot. It allows
- * the navigation history accumulated in the slot being replaced to be loaded
- * into the replacing slot.
- *
- * The 'location' member variable is set to the new location before calling
- * begin_location_change() to ensure that it matches the
- * 'current_location_bookmark' member as expected by the location change
- * pipeline.
- */
-void
-nautilus_window_slot_open_location_set_navigation_state (NautilusWindowSlot         *self,
-                                                         GFile                      *location,
-                                                         NautilusWindowOpenFlags     flags,
-                                                         GList                      *new_selection,
-                                                         NautilusLocationChangeType  change_type,
-                                                         NautilusNavigationState    *navigation_state,
-                                                         guint                       distance)
-{
-    NautilusWindowSlotPrivate *priv;
-
-    priv = nautilus_window_slot_get_instance_private (self);
-
-    nautilus_window_slot_restore_navigation_state (self, navigation_state);
-
-    g_clear_object (&priv->location);
-
-    priv->location = nautilus_file_get_location (navigation_state->file);
-
-    begin_location_change (self, location, NULL, new_selection,
-                           change_type, distance, NULL);
-}
diff --git a/src/nautilus-window-slot.h b/src/nautilus-window-slot.h
index 3518c948c..bdb9dccfa 100644
--- a/src/nautilus-window-slot.h
+++ b/src/nautilus-window-slot.h
@@ -77,14 +77,6 @@ void nautilus_window_slot_open_location_full              (NautilusWindowSlot
                                                            NautilusWindowOpenFlags  flags,
                                                            GList                   *new_selection);
 
-void nautilus_window_slot_open_location_set_navigation_state (NautilusWindowSlot         *slot,
-                                                              GFile                      *location,
-                                                              NautilusWindowOpenFlags     flags,
-                                                              GList                      *new_selection,
-                                                              NautilusLocationChangeType  change_type,
-                                                              NautilusNavigationState    *navigation_state,
-                                                              guint                       distance);
-
 GFile * nautilus_window_slot_get_location                 (NautilusWindowSlot *slot);
 GFile * nautilus_window_slot_get_pending_location          (NautilusWindowSlot *slot);
 
@@ -142,9 +134,4 @@ NautilusQueryEditor *nautilus_window_slot_get_query_editor (NautilusWindowSlot *
 /* Only used by slot-dnd */
 NautilusView*  nautilus_window_slot_get_current_view       (NautilusWindowSlot *slot);
 
-void nautilus_window_slot_back_or_forward                  (NautilusWindowSlot     *slot,
-                                                            gboolean                back,
-                                                            guint                   distance,
-                                                            NautilusWindowOpenFlags flags);
-
 void free_navigation_state                                 (gpointer data);
diff --git a/src/nautilus-window.c b/src/nautilus-window.c
index 0d8cd8414..f7de99348 100644
--- a/src/nautilus-window.c
+++ b/src/nautilus-window.c
@@ -610,7 +610,6 @@ nautilus_window_open_location_full (NautilusWindow          *window,
 {
     NautilusWindowSlot *active_slot;
     gboolean new_tab_at_end;
-    NautilusNavigationState *navigation_state = NULL;
 
     /* The location owner can be one of the slots requesting to handle an
      * unhandled location. But this slot can be destroyed when switching to
@@ -642,8 +641,6 @@ nautilus_window_open_location_full (NautilusWindow          *window,
     }
     else if (!nautilus_window_slot_handles_location (target_slot, location))
     {
-        navigation_state = nautilus_window_slot_get_navigation_state (active_slot);
-
         target_slot = replace_active_slot (window, location, flags);
     }
 
@@ -655,19 +652,7 @@ nautilus_window_open_location_full (NautilusWindow          *window,
         nautilus_window_set_active_slot (window, target_slot);
     }
 
-    if (navigation_state != NULL)
-    {
-        nautilus_window_slot_open_location_set_navigation_state (target_slot,
-                                                                 location, flags, selection,
-                                                                 NAUTILUS_LOCATION_CHANGE_STANDARD,
-                                                                 navigation_state, 0);
-
-        free_navigation_state (navigation_state);
-    }
-    else
-    {
-        nautilus_window_slot_open_location_full (target_slot, location, flags, selection);
-    }
+    nautilus_window_slot_open_location_full (target_slot, location, flags, selection);
 
     g_object_unref (location);
 }
@@ -2981,70 +2966,3 @@ nautilus_window_search (NautilusWindow *window,
         g_warning ("Trying search on a slot but no active slot present");
     }
 }
-
-/* Ideally, this method should be a simple wrapper for the slot method. However,
- * going back or forward can result in a new slot (or another subclass), so we
- * workaround that by duplicating part of nautilus_window_slot_back_or_forward()
- */
-void
-nautilus_window_back_or_forward (NautilusWindow          *window,
-                                 gboolean                 back,
-                                 guint                    distance,
-                                 NautilusWindowOpenFlags  flags)
-{
-    NautilusWindowSlot *slot;
-    GList *next_location_list, *back_list, *forward_list;
-    g_autoptr (GFile) next_location = NULL;
-    guint len;
-    NautilusBookmark *next_location_bookmark;
-    gboolean active_slot_handles_location;
-
-    slot = nautilus_window_get_active_slot (window);
-    back_list = nautilus_window_slot_get_back_history (slot);
-    forward_list = nautilus_window_slot_get_forward_history (slot);
-
-    next_location_list = back ? back_list : forward_list;
-
-    len = (guint) g_list_length (next_location_list);
-
-    /* If we can't move in the direction at all, just return. */
-    if (len == 0)
-    {
-        return;
-    }
-
-    /* If the distance to move is off the end of the list, go to the end
-     *  of the list. */
-    if (distance >= len)
-    {
-        distance = len - 1;
-    }
-
-    next_location_bookmark = g_list_nth_data (next_location_list, distance);
-    next_location = nautilus_bookmark_get_location (next_location_bookmark);
-
-    active_slot_handles_location = nautilus_window_slot_handles_location (slot, next_location);
-
-    if (!active_slot_handles_location)
-    {
-        NautilusNavigationState *navigation_state;
-        NautilusLocationChangeType location_change_type;
-
-        navigation_state = nautilus_window_slot_get_navigation_state (slot);
-
-        location_change_type = back ? NAUTILUS_LOCATION_CHANGE_BACK : NAUTILUS_LOCATION_CHANGE_FORWARD;
-
-        slot = replace_active_slot (window, next_location, flags);
-
-        nautilus_window_slot_open_location_set_navigation_state (slot,
-                                                                 next_location, flags, NULL,
-                                                                 location_change_type,
-                                                                 navigation_state, distance);
-
-        free_navigation_state (navigation_state);
-    }
-    else
-    {
-        nautilus_window_slot_back_or_forward (slot, back, distance, flags);
-    }
-}