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From a4ff5d5fe50365bd4ba31addc3fa67b59aa59d78 Mon Sep 17 00:00:00 2001
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From: Vladimir Testov <vladimir.testov@rosalab.ru>
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Date: Mon, 29 Apr 2013 13:40:11 +0200
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Subject: [PATCH 392/482] 	* grub-core/gfxmenu/gui_list.c: Refresh
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 first_shown_entry value when 	cached view is reused. 	*
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 grub-core/gfxmenu/view.c: Call the refresh procedure for all 	open boot
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 menus.
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---
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 ChangeLog                    |  7 +++++++
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 grub-core/gfxmenu/gui_list.c | 13 ++++++++++++-
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 grub-core/gfxmenu/view.c     | 22 ++++++++++++++++++++++
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 include/grub/gui.h           |  2 ++
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 4 files changed, 43 insertions(+), 1 deletion(-)
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diff --git a/ChangeLog b/ChangeLog
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index eff0b6b..86effa0 100644
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--- a/ChangeLog
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+++ b/ChangeLog
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@@ -1,3 +1,10 @@
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+2013-04-29 Vladimir Testov <vladimir.testov@rosalab.ru>
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+
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+	* grub-core/gfxmenu/gui_list.c: Refresh first_shown_entry value when
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+	cached view is reused.
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+	* grub-core/gfxmenu/view.c: Call the refresh procedure for all
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+	open boot menus.
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+
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 2013-04-29  Vladimir Serbinenko  <phcoder@gmail.com>
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 	Unify more code in grub-install_header.
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diff --git a/grub-core/gfxmenu/gui_list.c b/grub-core/gfxmenu/gui_list.c
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index 1982d9a..a06603b 100644
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--- a/grub-core/gfxmenu/gui_list.c
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+++ b/grub-core/gfxmenu/gui_list.c
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@@ -541,6 +541,16 @@ list_set_view_info (void *vself,
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   self->view = view;
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 }
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+/* Refresh list variables */
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+static void
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+list_refresh_info (void *vself,
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+                   grub_gfxmenu_view_t view)
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+{
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+  list_impl_t self = vself;
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+  if (view->nested)
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+    self->first_shown_index = 0;
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+}
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+
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 static struct grub_gui_component_ops list_comp_ops =
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   {
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     .destroy = list_destroy,
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@@ -557,7 +567,8 @@ static struct grub_gui_component_ops list_comp_ops =
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 static struct grub_gui_list_ops list_ops =
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 {
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-  .set_view_info = list_set_view_info
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+  .set_view_info = list_set_view_info,
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+  .refresh_list = list_refresh_info
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 };
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 grub_gui_component_t
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diff --git a/grub-core/gfxmenu/view.c b/grub-core/gfxmenu/view.c
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index 6de96ca..475fc76 100644
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--- a/grub-core/gfxmenu/view.c
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+++ b/grub-core/gfxmenu/view.c
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@@ -237,6 +237,27 @@ update_menu_components (grub_gfxmenu_view_t view)
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 }
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 static void
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+refresh_menu_visit (grub_gui_component_t component,
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+              void *userdata)
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+{
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+  grub_gfxmenu_view_t view;
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+  view = userdata;
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+  if (component->ops->is_instance (component, "list"))
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+    {
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+      grub_gui_list_t list = (grub_gui_list_t) component;
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+      list->ops->refresh_list (list, view);
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+    }
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+}
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+
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+/* Refresh list information (useful for submenus) */
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+static void
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+refresh_menu_components (grub_gfxmenu_view_t view)
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+{
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+  grub_gui_iterate_recursively ((grub_gui_component_t) view->canvas,
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+                                refresh_menu_visit, view);
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+}
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+
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+static void
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 draw_message (grub_gfxmenu_view_t view)
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 {
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   char *text = view->progress_message_text;
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@@ -294,6 +315,7 @@ grub_gfxmenu_view_draw (grub_gfxmenu_view_t view)
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 			  view->screen.x, view->screen.y,
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 			  view->screen.width, view->screen.height);
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+  refresh_menu_components (view);
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   update_menu_components (view);
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   grub_gfxmenu_view_redraw (view, &view->screen);
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diff --git a/include/grub/gui.h b/include/grub/gui.h
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index ef0795c..4b8ec89 100644
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--- a/include/grub/gui.h
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+++ b/include/grub/gui.h
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@@ -67,6 +67,8 @@ struct grub_gui_list_ops
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 {
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   void (*set_view_info) (void *self,
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                          grub_gfxmenu_view_t view);
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+  void (*refresh_list) (void *self,
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+                        grub_gfxmenu_view_t view);
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 };
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 struct grub_gui_progress_ops
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-- 
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1.8.2.1
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