ui/views/widget/tooltip_manager.cc

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ui/views/widget/tooltip_manager.h"
   6
   7 #include "ui/gfx/rect.h"
   8 #include "ui/gfx/screen.h"
   9 #include "ui/gfx/text_elider.h"
  10
  11 namespace views {
  12
  13 const size_t kMaxTooltipLength = 1024;
  14
  15 // static
  16 const char TooltipManager::kGroupingPropertyKey[] = "GroupingPropertyKey";
  17
  18 // static
  19 int TooltipManager::GetMaxWidth(int x, int y, gfx::NativeView context) {
  20   return GetMaxWidth(gfx::Screen::GetScreenFor(context)->GetDisplayNearestPoint(
  21                          gfx::Point(x, y)));
  22 }
  23
  24 // static
  25 int TooltipManager::GetMaxWidth(const gfx::Display& display) {
  26   return (display.bounds().width() + 1) / 2;
  27 }
  28
  29 // static
  30 void TooltipManager::TrimTooltipText(base::string16* text) {
  31   // Clamp the tooltip length to kMaxTooltipLength so that we don't
  32   // accidentally DOS the user with a mega tooltip.
  33   *text = gfx::TruncateString(*text, kMaxTooltipLength, gfx::WORD_BREAK);
  34 }
  35
  36 }  // namespace views