Ellipsize long entries in bookmark menus and the back/forward menus....

chrome/browser/gtk/go_button_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/go_button_gtk.h"
 
 #include "app/l10n_util.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "chrome/app/chrome_dll_resource.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/gtk/gtk_chrome_button.h"
 #include "chrome/browser/gtk/gtk_theme_provider.h"
 #include "chrome/browser/gtk/location_bar_view_gtk.h"
 #include "chrome/browser/profile.h"
 #include "chrome/browser/search_engines/template_url_model.h"
 #include "chrome/common/gtk_util.h"
 #include "chrome/common/notification_service.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
 
+// Limit the length of the tooltip text. This applies only to the text in the
+// omnibox (e.g. X in "Go to X");
+const size_t kMaxTooltipTextLength = 400;
+
 GoButtonGtk::GoButtonGtk(LocationBarViewGtk* location_bar, Browser* browser)
     : location_bar_(location_bar),
       browser_(browser),
       button_delay_(0),
       stop_timer_(this),
       intended_mode_(MODE_GO),
       visible_mode_(MODE_GO),
       state_(BS_NORMAL),
       theme_provider_(browser ?
                       GtkThemeProvider::GetFrom(browser->profile()) : NULL),
@@ skipping 154 matching lines @@
 gboolean GoButtonGtk::OnQueryTooltip(GtkTooltip* tooltip) {
   // |location_bar_| can be NULL in tests.
   if (!location_bar_)
     return FALSE;
 
   std::string text;
   if (visible_mode_ == MODE_GO) {
     std::wstring current_text_wstr(location_bar_->location_entry()->GetText());
     if (l10n_util::GetTextDirection() == l10n_util::RIGHT_TO_LEFT)
       l10n_util::WrapStringWithLTRFormatting(&current_text_wstr);
-    string16 current_text = WideToUTF16Hack(current_text_wstr);
+    string16 current_text = WideToUTF16Hack(
+        l10n_util::TruncateString(current_text_wstr, kMaxTooltipTextLength));
 
     AutocompleteEditModel* edit_model =
         location_bar_->location_entry()->model();
     if (edit_model->CurrentTextIsURL()) {
       text = l10n_util::GetStringFUTF8(IDS_TOOLTIP_GO_SITE, current_text);
     } else {
       std::wstring keyword(edit_model->keyword());
       TemplateURLModel* template_url_model =
           browser_->profile()->GetTemplateURLModel();
       const TemplateURL* provider =
@@ skipping 38 matching lines @@
                                 gdk_pixbuf_get_height(go_.pixbufs(0)));
 
     gtk_widget_set_app_paintable(widget_.get(), TRUE);
     // We effectively double-buffer by virtue of having only one image...
     gtk_widget_set_double_buffered(widget_.get(), FALSE);
   }
 
   gtk_chrome_button_set_use_gtk_rendering(
       GTK_CHROME_BUTTON(widget_.get()), use_gtk);
 }