[nautilus] rename-file-popover-controller: make F2 toggle between selection modes

[Ernestas Kulik <ernestask src gnome org>]

commit b24def95fb2c69ed2041bd8ff5d18c98c686fe96
Author: Ernestas Kulik <ernestask src gnome org>
Date:   Sat Feb 4 17:34:30 2017 +0200

    rename-file-popover-controller: make F2 toggle between selection modes
    
    In previous versions of Nautilus, F2 used to switch between selecting
    the whole filename and selecting the filename up to the extension. This
    functionality has been lost in some version. This commit brings the
    functionality back.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=774361

 src/nautilus-rename-file-popover-controller.c |   61 +++++++++++++++++++++++++
 1 files changed, 61 insertions(+), 0 deletions(-)
---
diff --git a/src/nautilus-rename-file-popover-controller.c b/src/nautilus-rename-file-popover-controller.c
index 7c03cb2..fe5e903 100644
--- a/src/nautilus-rename-file-popover-controller.c
+++ b/src/nautilus-rename-file-popover-controller.c
@@ -125,6 +125,62 @@ nautilus_rename_file_popover_controller_ignore_existing_file (NautilusFileNameWi
     return nautilus_file_compare_display_name (self->target_file, display_name) == 0;
 }
 
+/* Albeit a misnomer, this only handles presses of the F2 key.
+ * This is to restore functionality, lost in the introduction of the popover,
+ * where pressing F2 while renaming would select all text.
+ * The bug reporter also requested switching between selecting the name
+ * and the name with extension.
+ *
+ * See https://bugzilla.gnome.org/show_bug.cgi?id=774361
+ */
+static gboolean
+name_entry_on_key_pressed (GtkWidget *widget,
+                           GdkEvent  *event,
+                           gpointer   user_data)
+{
+    GdkEventKey *key_event;
+    NautilusRenameFilePopoverController *self;
+    guint text_length;
+    gint start_pos;
+    gint end_pos;
+    gboolean all_selected;
+
+    key_event = (GdkEventKey *)event;
+    if (key_event->keyval != GDK_KEY_F2)
+    {
+        return GDK_EVENT_PROPAGATE;
+    }
+
+    self = NAUTILUS_RENAME_FILE_POPOVER_CONTROLLER (user_data);
+    text_length = (guint)gtk_entry_get_text_length (GTK_ENTRY (widget));
+    if (text_length == 0)
+    {
+        return GDK_EVENT_PROPAGATE;
+    }
+
+    gtk_editable_get_selection_bounds (GTK_EDITABLE (widget),
+                                       &start_pos, &end_pos);
+
+    all_selected = (start_pos == 0) && ((guint)end_pos == text_length);
+    if (!all_selected || !nautilus_file_is_regular_file (self->target_file))
+    {
+        gtk_editable_select_region (GTK_EDITABLE (widget), 0, -1);
+    }
+    else
+    {
+        gint start_offset;
+        gint end_offset;
+
+        /* Select the name part without the file extension */
+        eel_filename_get_rename_region (gtk_entry_get_text (GTK_ENTRY (widget)),
+                                        &start_offset, &end_offset);
+        gtk_editable_select_region (GTK_EDITABLE (widget),
+                                    start_offset, end_offset);
+    }
+
+    return GDK_EVENT_PROPAGATE;
+}
+
 NautilusRenameFilePopoverController *
 nautilus_rename_file_popover_controller_new (NautilusFile *target_file,
                                              GdkRectangle *pointing_to,
@@ -185,6 +241,11 @@ nautilus_rename_file_popover_controller_new (NautilusFile *target_file,
                       (GCallback) gtk_widget_destroy,
                       NULL);
 
+    g_signal_connect (name_entry,
+                      "key-press-event",
+                      G_CALLBACK (name_entry_on_key_pressed),
+                      self);
+
     gtk_label_set_text (GTK_LABEL (name_label),
                         self->target_is_folder ? _("Folder name") :
                         _("File name"));