content/renderer/disambiguation_popup_helper.h

   1 // Copyright (c) 2012 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 #ifndef CONTENT_RENDERER_DISAMBIGUATION_POPUP_HELPER_H_
   6 #define CONTENT_RENDERER_DISAMBIGUATION_POPUP_HELPER_H_
   7
   8 #include "content/common/content_export.h"
   9 #include "third_party/WebKit/public/platform/WebVector.h"
  10
  11 namespace gfx {
  12 class Rect;
  13 class Size;
  14 }
  15
  16 namespace WebKit {
  17 struct WebRect;
  18 }
  19
  20 namespace content {
  21
  22 // Contains functions to calculate proper scaling factor and popup size
  23 class DisambiguationPopupHelper {
  24  public:
  25   CONTENT_EXPORT static float ComputeZoomAreaAndScaleFactor(
  26       const gfx::Rect& tap_rect,
  27       const WebKit::WebVector<WebKit::WebRect>& target_rects,
  28       const gfx::Size& screen_size,
  29       const gfx::Size& visible_content_size,
  30       float total_scale,
  31       gfx::Rect* zoom_rect);
  32 };
  33
  34 }  // namespace content
  35
  36 #endif  // CONTENT_RENDERER_DISAMBIGUATION_POPUP_HELPER_H_