Remember/restore the bookmark manager pane position.

chrome/browser/gtk/bookmark_manager_gtk.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/gtk/bookmark_manager_gtk.h"
 
 #include <gdk/gdkkeysyms.h>
 #include <vector>
 
 #include "app/l10n_util.h"
@@ skipping 313 matching lines @@
   GtkUtil::SetWindowIcon(GTK_WINDOW(window_));
 
   model_->AddObserver(this);
   if (model_->IsLoaded())
     Loaded(model_);
 
   gtk_widget_show_all(window_);
 }
 
 BookmarkManagerGtk::~BookmarkManagerGtk() {
+  g_browser_process->local_state()->SetInteger(
+      prefs::kBookmarkManagerSplitLocation,
+      gtk_paned_get_position(GTK_PANED(paned_)));
   SaveColumnConfiguration();
   model_->RemoveObserver(this);
 }
 
 void BookmarkManagerGtk::InitWidgets() {
   window_ = gtk_window_new(GTK_WINDOW_TOPLEVEL);
   gtk_window_set_title(GTK_WINDOW(window_),
       l10n_util::GetStringUTF8(IDS_BOOKMARK_MANAGER_TITLE).c_str());
   g_signal_connect(
       window_, "configure-event", G_CALLBACK(OnWindowConfiguredThunk), this);
@@ skipping 52 matching lines @@
                    G_CALLBACK(OnSearchTextChangedThunk), this);
 
   GtkWidget* hbox = gtk_hbox_new(FALSE, 0);
   gtk_box_pack_start(GTK_BOX(hbox), menu_bar, FALSE, FALSE, 0);
   gtk_box_pack_end(GTK_BOX(hbox), search_entry_, FALSE, FALSE, 0);
   gtk_box_pack_end(GTK_BOX(hbox), search_label, FALSE, FALSE, kSearchPadding);
 
   GtkWidget* left_pane = MakeLeftPane();
   GtkWidget* right_pane = MakeRightPane();
 
-  GtkWidget* paned = gtk_hpaned_new();
+  paned_ = gtk_hpaned_new();
+  gtk_paned_pack1(GTK_PANED(paned_), left_pane, FALSE, FALSE);
+  gtk_paned_pack2(GTK_PANED(paned_), right_pane, TRUE, FALSE);
+
   // Set the initial position of the pane divider.
-  gtk_paned_set_position(GTK_PANED(paned), width / 3);
-  gtk_paned_pack1(GTK_PANED(paned), left_pane, FALSE, FALSE);
-  gtk_paned_pack2(GTK_PANED(paned), right_pane, TRUE, FALSE);
+  int split_x = g_browser_process->local_state()->GetInteger(
+      prefs::kBookmarkManagerSplitLocation);
+  if (split_x == -1) {
+    split_x = width / 3;
+  } else {
+    int min_split_size = width / 8;
+    // Make sure the user can see both the tree/table.
+    split_x = std::min(width - min_split_size,
+                       std::max(min_split_size, split_x));
+  }
+  gtk_paned_set_position(GTK_PANED(paned_), split_x);
 
   GtkWidget* vbox = gtk_vbox_new(FALSE, 0);
   gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
-  gtk_box_pack_start(GTK_BOX(vbox), paned, TRUE, TRUE, 0);
+  gtk_box_pack_start(GTK_BOX(vbox), paned_, TRUE, TRUE, 0);
   gtk_container_add(GTK_CONTAINER(window_), vbox);
 
   ResetOrganizeMenu(true);
 }
 
 GtkWidget* BookmarkManagerGtk::MakeLeftPane() {
   left_store_ = bookmark_utils::MakeFolderTreeStore();
 
   GtkTreeViewColumn* icon_column = gtk_tree_view_column_new_with_attributes(
       "", gtk_cell_renderer_pixbuf_new(), "pixbuf", bookmark_utils::FOLDER_ICON,
@@ skipping 966 matching lines @@
   } else if (id == IDS_BOOKMARK_MANAGER_EXPORT_MENU) {
     if (g_browser_process->io_thread()) {
       bookmark_html_writer::WriteBookmarks(
           g_browser_process->io_thread()->message_loop(), model_,
           path.ToWStringHack());
     }
   } else {
     NOTREACHED();
   }
 }