Fix select after rename; fix rename folder; disallow rename if unsaved edits

src/FolderManager/FileItem.vala

@@ -122,10 +122,31 @@ namespace Scratch.FolderManager {
 
             var rename_item = new Gtk.MenuItem.with_label (_("Rename"));
             rename_item.activate.connect (() => {
-                view.ignore_next_select = true;
-                view.start_editing_item (this);
+                // Ensure item selected else rename does not work
+                view.select_path (file.path);
+                if (view.start_editing_item (this)) {
+                    ulong once = 0;
+                    once = this.edited.connect ((new_name) => {
+                        this.disconnect (once);
+                        var new_path = Path.get_dirname (file.path) + Path.DIR_SEPARATOR_S + new_name;
+                        view.toplevel_action_group.activate_action (MainWindow.ACTION_CLOSE_TAB, new Variant.string (this.path));
+                        view.select (new_path);  // Select and open newly named file
+                    });
+
+                    // Handle cancelled rename (which does not produce signal)
+                    Timeout.add (200, () => {
+                        if (view.editing) {
+                            return Source.CONTINUE;
+                        } else {
+                            // Avoid selected but unopened item if rename cancelled (they would not open if clicked on)
+                            view.unselect_all ();
+                            return Source.REMOVE;
+                        }
+                    });
+                }
             });
 
+            rename_item.sensitive = view.rename_request (file);
             var delete_item = new Gtk.MenuItem.with_label (_("Move to Trash"));
             delete_item.activate.connect (trash);
 

src/FolderManager/FileView.vala

@@ -24,10 +24,12 @@
 public class Scratch.FolderManager.FileView : Granite.Widgets.SourceList, Code.PaneSwitcher {
     private GLib.Settings settings;
     private Scratch.Services.GitManager git_manager;
-    private ActionGroup? toplevel_action_group = null;
+
+    public ActionGroup toplevel_action_group { get; private set; }
     private Scratch.Services.PluginsManager plugins;
 
     public signal void select (string file);
+    public signal bool rename_request (File file);
 
     public bool ignore_next_select { get; set; default = false; }
     public string icon_name { get; set; }
@@ -119,6 +121,10 @@ public class Scratch.FolderManager.FileView : Granite.Widgets.SourceList, Code.P
         item_selected.connect (on_item_selected);
     }
 
+    public void unselect_all () {
+        selected = null;
+    }
+
     public void collapse_other_projects (string? keep_open_path = null) {
         unowned string path;
         if (keep_open_path == null) {

src/FolderManager/FolderItem.vala

@@ -123,8 +123,25 @@ namespace Scratch.FolderManager {
 
             var rename_menu_item = new Gtk.MenuItem.with_label (_("Rename"));
             rename_menu_item.activate.connect (() => {
-                view.ignore_next_select = true;
-                view.start_editing_item (this);
+                selectable = true;
+                if (view.start_editing_item (this)) {
+                    // Need to poll view as no signal emited when editing cancelled and need to set
+                    // selectable to false anyway.
+                    Timeout.add (200, () => {
+                        if (view.editing) {
+                            return Source.CONTINUE;
+                        } else {
+                            view.unselect_all ();
+                            // Must do this *after* unselecting all else sourcelist breaks
+                            selectable = false;
+                        }
+
+                        return Source.REMOVE;
+                    });
+                } else {
+                    debug ("Could not rename %s", file.path);
+                    selectable = false;
+                }
             });
 
             var delete_item = new Gtk.MenuItem.with_label (_("Move to Trash"));
@@ -380,14 +397,12 @@ namespace Scratch.FolderManager {
             add (rename_item);
             /* Start editing after finishing signal handler */
             GLib.Idle.add (() => {
-                view.start_editing_item (rename_item);
-                /* Need to poll view editing as no signal is generated when canceled (Granite bug) */
-                Timeout.add (200, () => {
-                    if (view.editing) {
-                        return Source.CONTINUE;
-                    } else {
+                if (view.start_editing_item (rename_item)) {
+                    ulong once = 0;
+                    once = rename_item.edited.connect (() => {
+                        rename_item.disconnect (once);
+                        // A name was accepted so create the corresponding file
                         var new_name = rename_item.name;
-                        view.ignore_next_select = true;
                         try {
                             var gfile = file.file.get_child_for_display_name (new_name);
                             if (is_folder) {
@@ -398,13 +413,23 @@ namespace Scratch.FolderManager {
                             }
                         } catch (Error e) {
                             warning (e.message);
-                        } finally {
+                        }
+                    });
+
+                    /* Need to remove rename item even when editing cancelled so cannot use "edited" signal */
+                    Timeout.add (200, () => {
+                        if (view.editing) {
+                            return Source.CONTINUE;
+                        } else {
                             remove (rename_item);
                         }
-                    }
 
-                    return Source.REMOVE;
-                });
+                        return Source.REMOVE;
+                    });
+                } else {
+                    remove (rename_item);
+                }
+
 
                 return Source.REMOVE;
             });

src/MainWindow.vala

@@ -480,6 +480,22 @@ namespace Scratch {
 
             folder_manager_view.restore_saved_state ();
 
+            folder_manager_view.rename_request.connect ((file) => {
+                var allow = true;
+                foreach (var window in app.get_windows ()) {
+                    var win = (MainWindow)window;
+                    foreach (var doc in win.document_view.docs) {
+                        if (doc.file.equal (file.file)) {
+                            // Only allow sidebar to rename docs that are in sync with their file in
+                            // all windows
+                            allow = allow && !doc.locked && doc.saved;
+                        }
+                    }
+                }
+
+                return allow;
+            });
+
             terminal = new Code.Terminal () {
                 no_show_all = true,
                 visible = false