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 15 class GURL; 16 class SkBitmap; 17 18 namespace webui { 19 20 // Convenience routine to convert SkBitmap object to data url 21 // so that it can be used in WebUI. 22 UI_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|. 30 UI_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|. 35 UI_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|. 39 UI_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. 44 UI_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. 50 UI_BASE_EXPORT void SetFontAndTextDirection( 51 base::DictionaryValue* localized_strings); 52 53 } // namespace webui 54 55 #endif // UI_BASE_WEBUI_WEB_UI_UTIL_H_ 56