1// Copyright 2013 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 UI_BASE_WEBUI_WEB_UI_UTIL_H_
6#define UI_BASE_WEBUI_WEB_UI_UTIL_H_
7
8#include <string>
9
10#include "base/strings/string_piece.h"
11#include "base/values.h"
12#include "ui/base/ui_base_export.h"
13#include "ui/base/window_open_disposition.h"
14
15class GURL;
16class SkBitmap;
17
18namespace webui {
19
20// Convenience routine to convert SkBitmap object to data url
21// so that it can be used in WebUI.
22UI_BASE_EXPORT std::string GetBitmapDataUrl(const SkBitmap& bitmap);
23
24// Convenience routine to get data url that corresponds to given
25// resource_id as a bitmap. This function does not check if the
26// resource for the |resource_id| is a bitmap, therefore it is the
27// caller's responsibility to make sure the resource is indeed a
28// bitmap. Returns empty string if a resource does not exist for given
29// |resource_id|.
30UI_BASE_EXPORT std::string GetBitmapDataUrlFromResource(int resource_id);
31
32// Extracts a disposition from click event arguments. |args| should contain
33// an integer button and booleans alt key, ctrl key, meta key, and shift key
34// (in that order), starting at |start_index|.
35UI_BASE_EXPORT WindowOpenDisposition
36    GetDispositionFromClick(const base::ListValue* args, int start_index);
37
38// Pares a formatted scale factor string into float and sets to |scale_factor|.
39UI_BASE_EXPORT bool ParseScaleFactor(const base::StringPiece& identifier,
40                                     float* scale_factor);
41
42// Parses a URL containing some path @{scale}x. If it does not contain a scale
43// factor then the default scale factor is returned.
44UI_BASE_EXPORT void ParsePathAndScale(const GURL& url,
45                                      std::string* path,
46                                      float* scale_factor);
47
48// Helper function to set the font family, size, and text direction into the
49// given dictionary.
50UI_BASE_EXPORT void SetFontAndTextDirection(
51    base::DictionaryValue* localized_strings);
52
53}  // namespace webui
54
55#endif  // UI_BASE_WEBUI_WEB_UI_UTIL_H_
56