[gnome-builder/wip/libide] libide: jump to file percentage with %

[Christian Hergert <chergert src gnome org>]

commit 3f65394a34f875347f0cea5ce8bb4c075fa25ae7
Author: Christian Hergert <christian hergert me>
Date:   Fri Mar 6 20:33:49 2015 -0800

    libide: jump to file percentage with %

 data/keybindings/vim.css           |    2 ++
 libide/ide-source-view-movements.c |   30 ++++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 0 deletions(-)
---
diff --git a/data/keybindings/vim.css b/data/keybindings/vim.css
index 84a40ce..e023266 100644
--- a/data/keybindings/vim.css
+++ b/data/keybindings/vim.css
@@ -90,6 +90,8 @@
 {
   bind "0" { "append-to-count" (0)
              "set-mode" ("vim-normal-with-count", transient) };
+  bind "percent" { "movement" (line-percentage, 0, 1, 1)
+                   "set-mode" ("vim-normal-with-count", transient) };
 }
 
 @binding-set builder-vim-source-view-normal
diff --git a/libide/ide-source-view-movements.c b/libide/ide-source-view-movements.c
index dfdc8a8..bfa2935 100644
--- a/libide/ide-source-view-movements.c
+++ b/libide/ide-source-view-movements.c
@@ -1008,6 +1008,35 @@ ide_source_view_movements_sentence_end (Movement *mv)
   _ide_vim_iter_forward_sentence_end (&mv->insert);
 }
 
+static void
+ide_source_view_movements_line_percentage (Movement *mv)
+{
+  GtkTextBuffer *buffer;
+  GtkTextIter end;
+  guint end_line;
+
+  buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (mv->self));
+  gtk_text_buffer_get_end_iter (buffer, &end);
+  end_line = gtk_text_iter_get_line (&end);
+
+  if (!mv->count)
+    {
+      gtk_text_iter_set_line (&mv->insert, 0);
+    }
+  else
+    {
+      guint line;
+
+      mv->count = MAX (1, mv->count);
+      line = (float)end_line * (mv->count / 100.0);
+      gtk_text_iter_set_line (&mv->insert, line);
+    }
+
+  mv->count = 0;
+
+  ide_source_view_movements_first_nonspace_char (mv);
+}
+
 void
 _ide_source_view_apply_movement (IdeSourceView         *self,
                                  IdeSourceViewMovement  movement,
@@ -1167,6 +1196,7 @@ _ide_source_view_apply_movement (IdeSourceView         *self,
       break;
 
     case IDE_SOURCE_VIEW_MOVEMENT_LINE_PERCENTAGE:
+      ide_source_view_movements_line_percentage (&mv);
       break;
 
     case IDE_SOURCE_VIEW_MOVEMENT_LINE_CHARS: