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 // Some helper functions for working with the clipboard and IDataObjects. 6 7 #ifndef UI_BASE_CLIPBOARD_CLIPBOARD_UTIL_WIN_H_ 8 #define UI_BASE_CLIPBOARD_CLIPBOARD_UTIL_WIN_H_ 9 10 #include <shlobj.h> 11 #include <map> 12 #include <string> 13 #include <vector> 14 15 #include "base/strings/string16.h" 16 #include "ui/base/ui_export.h" 17 18 namespace ui { 19 20 class UI_EXPORT ClipboardUtil { 21 public: 22 ///////////////////////////////////////////////////////////////////////////// 23 // These methods check to see if |data_object| has the requested type. 24 // Returns true if it does. 25 static bool HasUrl(IDataObject* data_object); 26 static bool HasFilenames(IDataObject* data_object); 27 static bool HasPlainText(IDataObject* data_object); 28 static bool HasFileContents(IDataObject* data_object); 29 static bool HasHtml(IDataObject* data_object); 30 31 ///////////////////////////////////////////////////////////////////////////// 32 // Helper methods to extract information from an IDataObject. These methods 33 // return true if the requested data type is found in |data_object|. 34 static bool GetUrl(IDataObject* data_object, 35 string16* url, 36 string16* title, 37 bool convert_filenames); 38 static bool GetFilenames(IDataObject* data_object, 39 std::vector<string16>* filenames); 40 static bool GetPlainText(IDataObject* data_object, string16* plain_text); 41 static bool GetHtml(IDataObject* data_object, 42 string16* text_html, 43 std::string* base_url); 44 static bool GetFileContents(IDataObject* data_object, 45 string16* filename, 46 std::string* file_contents); 47 // This represents custom MIME types a web page might set to transport its 48 // own types of data for drag and drop. It is sandboxed in its own CLIPFORMAT 49 // to avoid polluting the ::RegisterClipboardFormat() namespace with random 50 // strings from web content. 51 static bool GetWebCustomData(IDataObject* data_object, 52 std::map<string16, string16>* custom_data); 53 54 // Helper method for converting between MS CF_HTML format and plain 55 // text/html. 56 static std::string HtmlToCFHtml(const std::string& html, 57 const std::string& base_url); 58 static void CFHtmlToHtml(const std::string& cf_html, 59 std::string* html, 60 std::string* base_url); 61 static void CFHtmlExtractMetadata(const std::string& cf_html, 62 std::string* base_url, 63 size_t* html_start, 64 size_t* fragment_start, 65 size_t* fragment_end); 66 }; 67 68 } 69 70 #endif // UI_BASE_CLIPBOARD_CLIPBOARD_UTIL_WIN_H_ 71
