Implements LocationBarView::AvailableWidth for Gtk.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/195068

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@26107 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 21 insertions, 0 deletions

diff --git a/chrome/browser/autocomplete/autocomplete_edit_view_gtk.cc b/chrome/browser/autocomplete/autocomplete_edit_view_gtk.cc
index 2633037..26025e2 100644
--- a/chrome/browser/autocomplete/autocomplete_edit_view_gtk.cc
+++ b/chrome/browser/autocomplete/autocomplete_edit_view_gtk.cc
@@ -236,6 +236,23 @@ void AutocompleteEditViewGtk::SetFocus() {
   gtk_widget_grab_focus(text_view_);
 }
 
+int AutocompleteEditViewGtk::TextWidth() {
+  int horizontal_border_size =
+      gtk_text_view_get_border_window_size(GTK_TEXT_VIEW(text_view_),
+                                           GTK_TEXT_WINDOW_LEFT) +
+      gtk_text_view_get_border_window_size(GTK_TEXT_VIEW(text_view_),
+                                           GTK_TEXT_WINDOW_RIGHT) +
+      gtk_text_view_get_left_margin(GTK_TEXT_VIEW(text_view_)) +
+      gtk_text_view_get_right_margin(GTK_TEXT_VIEW(text_view_));
+  GtkTextIter end;
+  GdkRectangle last_char_bounds;
+  gtk_text_buffer_get_end_iter(
+      gtk_text_view_get_buffer(GTK_TEXT_VIEW(text_view_)), &end);
+  gtk_text_view_get_iter_location(GTK_TEXT_VIEW(text_view_),
+                                  &end, &last_char_bounds);
+  return last_char_bounds.x + last_char_bounds.width + horizontal_border_size;
+}
+
 void AutocompleteEditViewGtk::SaveStateToTab(TabContents* tab) {
   DCHECK(tab);
   GetStateAccessor()->SetProperty(
diff --git a/chrome/browser/autocomplete/autocomplete_edit_view_gtk.h b/chrome/browser/autocomplete/autocomplete_edit_view_gtk.h
index 112cdef..2f51e88 100644
--- a/chrome/browser/autocomplete/autocomplete_edit_view_gtk.h
+++ b/chrome/browser/autocomplete/autocomplete_edit_view_gtk.h
@@ -63,6 +63,10 @@ class AutocompleteEditViewGtk : public AutocompleteEditView,
   // Grab keyboard input focus, putting focus on the location widget.
   void SetFocus();
 
+  // Returns the width, in pixels, needed to display the current text. The
+  // returned value includes margins and borders.
+  int TextWidth();
+
   // Implement the AutocompleteEditView interface.
   virtual AutocompleteEditModel* model() { return model_.get(); }
   virtual const AutocompleteEditModel* model() const { return model_.get(); }