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
11namespace gfx {
12class Rect;
13class Size;
14}
15
16namespace blink {
17struct WebRect;
18}
19
20namespace content {
21
22// Contains functions to calculate proper scaling factor and popup size
23class DisambiguationPopupHelper {
24 public:
25  CONTENT_EXPORT static float ComputeZoomAreaAndScaleFactor(
26      const gfx::Rect& tap_rect,
27      const blink::WebVector<blink::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_
37