1 // Copyright (c) 2011 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 #include "chrome/browser/ui/webui/shared_resources_data_source.h" 6 7 #include <string> 8 9 #include "base/memory/singleton.h" 10 #include "base/threading/thread_restrictions.h" 11 #include "chrome/browser/io_thread.h" 12 #include "chrome/browser/ui/webui/chrome_url_data_manager.h" 13 #include "chrome/common/url_constants.h" 14 #include "content/browser/browser_thread.h" 15 #include "grit/app_resources.h" 16 #include "grit/generated_resources.h" 17 #include "grit/shared_resources.h" 18 #include "grit/shared_resources_map.h" 19 #include "grit/theme_resources.h" 20 #include "net/base/mime_util.h" 21 #include "ui/base/resource/resource_bundle.h" 22 23 namespace { 24 PathToIDR(const std::string & path)25int PathToIDR(const std::string& path) { 26 int idr = -1; 27 if (path == "app/resources/folder_closed.png") { 28 idr = IDR_FOLDER_CLOSED; 29 } else if (path == "app/resources/folder_closed_rtl.png") { 30 idr = IDR_FOLDER_CLOSED_RTL; 31 } else if (path == "app/resources/folder_open.png") { 32 idr = IDR_FOLDER_OPEN; 33 } else if (path == "app/resources/folder_open_rtl.png") { 34 idr = IDR_FOLDER_OPEN_RTL; 35 } else if (path == "app/resources/throbber.png") { 36 idr = IDR_THROBBER; 37 } else { 38 // The name of the files in the grd list are prefixed with the following 39 // directory: 40 std::string key("shared/"); 41 key += path; 42 43 for (size_t i = 0; i < kSharedResourcesSize; ++i) { 44 if (kSharedResources[i].name == key) { 45 idr = kSharedResources[i].value; 46 break; 47 } 48 } 49 } 50 51 return idr; 52 } 53 54 } // namespace 55 SharedResourcesDataSource()56SharedResourcesDataSource::SharedResourcesDataSource() 57 : DataSource(chrome::kChromeUIResourcesHost, NULL) { 58 } 59 ~SharedResourcesDataSource()60SharedResourcesDataSource::~SharedResourcesDataSource() { 61 } 62 StartDataRequest(const std::string & path,bool is_incognito,int request_id)63void SharedResourcesDataSource::StartDataRequest(const std::string& path, 64 bool is_incognito, 65 int request_id) { 66 int idr = PathToIDR(path); 67 DCHECK_NE(-1, idr) << " path: " << path; 68 const ResourceBundle& rb = ResourceBundle::GetSharedInstance(); 69 scoped_refptr<RefCountedStaticMemory> bytes(rb.LoadDataResourceBytes(idr)); 70 SendResponse(request_id, bytes); 71 } 72 GetMimeType(const std::string & path) const73std::string SharedResourcesDataSource::GetMimeType( 74 const std::string& path) const { 75 // Requests should not block on the disk! On Windows this goes to the 76 // registry. 77 // http://code.google.com/p/chromium/issues/detail?id=59849 78 base::ThreadRestrictions::ScopedAllowIO allow_io; 79 80 std::string mime_type; 81 net::GetMimeTypeFromFile(FilePath().AppendASCII(path), &mime_type); 82 return mime_type; 83 } 84
