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_base_export.h" 17 18 class GURL; 19 20 namespace ui { 21 22 class UI_BASE_EXPORT ClipboardUtil { 23 public: 24 ///////////////////////////////////////////////////////////////////////////// 25 // These methods check to see if |data_object| has the requested type. 26 // Returns true if it does. 27 static bool HasUrl(IDataObject* data_object, bool convert_filenames); 28 static bool HasFilenames(IDataObject* data_object); 29 static bool HasPlainText(IDataObject* data_object); 30 static bool HasFileContents(IDataObject* data_object); 31 static bool HasHtml(IDataObject* data_object); 32 33 ///////////////////////////////////////////////////////////////////////////// 34 // Helper methods to extract information from an IDataObject. These methods 35 // return true if the requested data type is found in |data_object|. 36 37 // Only returns true if url->is_valid() is true. 38 static bool GetUrl(IDataObject* data_object, 39 GURL* url, 40 base::string16* title, 41 bool convert_filenames); 42 static bool GetFilenames(IDataObject* data_object, 43 std::vector<base::string16>* filenames); 44 static bool GetPlainText(IDataObject* data_object, 45 base::string16* plain_text); 46 static bool GetHtml(IDataObject* data_object, 47 base::string16* text_html, 48 std::string* base_url); 49 static bool GetFileContents(IDataObject* data_object, 50 base::string16* filename, 51 std::string* file_contents); 52 // This represents custom MIME types a web page might set to transport its 53 // own types of data for drag and drop. It is sandboxed in its own CLIPFORMAT 54 // to avoid polluting the ::RegisterClipboardFormat() namespace with random 55 // strings from web content. 56 static bool GetWebCustomData( 57 IDataObject* data_object, 58 std::map<base::string16, base::string16>* custom_data); 59 60 // Helper method for converting between MS CF_HTML format and plain 61 // text/html. 62 static std::string HtmlToCFHtml(const std::string& html, 63 const std::string& base_url); 64 static void CFHtmlToHtml(const std::string& cf_html, 65 std::string* html, 66 std::string* base_url); 67 static void CFHtmlExtractMetadata(const std::string& cf_html, 68 std::string* base_url, 69 size_t* html_start, 70 size_t* fragment_start, 71 size_t* fragment_end); 72 }; 73 74 } 75 76 #endif // UI_BASE_CLIPBOARD_CLIPBOARD_UTIL_WIN_H_ 77
