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      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 #include "webkit/glue/simple_webmimeregistry_impl.h"
      6 
      7 #include "base/files/file_path.h"
      8 #include "base/strings/string_util.h"
      9 #include "base/strings/sys_string_conversions.h"
     10 #include "base/strings/utf_string_conversions.h"
     11 #include "net/base/mime_util.h"
     12 #include "third_party/WebKit/public/platform/WebString.h"
     13 
     14 using WebKit::WebString;
     15 using WebKit::WebMimeRegistry;
     16 
     17 namespace webkit_glue {
     18 
     19 //static
     20 std::string SimpleWebMimeRegistryImpl::ToASCIIOrEmpty(const WebString& string) {
     21   return IsStringASCII(string) ? UTF16ToASCII(string) : std::string();
     22 }
     23 
     24 WebMimeRegistry::SupportsType SimpleWebMimeRegistryImpl::supportsMIMEType(
     25     const WebString& mime_type) {
     26   return net::IsSupportedMimeType(ToASCIIOrEmpty(mime_type)) ?
     27       WebMimeRegistry::IsSupported : WebMimeRegistry::IsNotSupported;
     28 }
     29 
     30 WebMimeRegistry::SupportsType SimpleWebMimeRegistryImpl::supportsImageMIMEType(
     31     const WebString& mime_type) {
     32   return net::IsSupportedImageMimeType(ToASCIIOrEmpty(mime_type)) ?
     33       WebMimeRegistry::IsSupported : WebMimeRegistry::IsNotSupported;
     34 }
     35 
     36 WebMimeRegistry::SupportsType
     37     SimpleWebMimeRegistryImpl::supportsJavaScriptMIMEType(
     38     const WebString& mime_type) {
     39   return net::IsSupportedJavascriptMimeType(ToASCIIOrEmpty(mime_type)) ?
     40       WebMimeRegistry::IsSupported : WebMimeRegistry::IsNotSupported;
     41 }
     42 
     43 // When debugging layout tests failures in the test shell,
     44 // see TestShellWebMimeRegistryImpl.
     45 WebMimeRegistry::SupportsType SimpleWebMimeRegistryImpl::supportsMediaMIMEType(
     46     const WebString& mime_type, const WebString& codecs) {
     47   // Media features are only supported at the content/ layer.
     48   return IsNotSupported;
     49 }
     50 
     51 WebMimeRegistry::SupportsType SimpleWebMimeRegistryImpl::supportsMediaMIMEType(
     52     const WebString& mime_type,
     53     const WebString& codecs,
     54     const WebString& key_system) {
     55   // Media features are only supported at the content/ layer.
     56   return IsNotSupported;
     57 }
     58 
     59 bool SimpleWebMimeRegistryImpl::supportsMediaSourceMIMEType(
     60     const WebString& mime_type,
     61     const WebString& codecs) {
     62   // Media features are only supported at the content/ layer.
     63   return IsNotSupported;
     64 }
     65 
     66 WebMimeRegistry::SupportsType
     67     SimpleWebMimeRegistryImpl::supportsNonImageMIMEType(
     68     const WebString& mime_type) {
     69   return net::IsSupportedNonImageMimeType(ToASCIIOrEmpty(mime_type)) ?
     70       WebMimeRegistry::IsSupported : WebMimeRegistry::IsNotSupported;
     71 }
     72 
     73 WebString SimpleWebMimeRegistryImpl::mimeTypeForExtension(
     74     const WebString& file_extension) {
     75   std::string mime_type;
     76   net::GetMimeTypeFromExtension(
     77       base::FilePath::FromUTF16Unsafe(file_extension).value(), &mime_type);
     78   return WebString::fromUTF8(mime_type);
     79 }
     80 
     81 WebString SimpleWebMimeRegistryImpl::wellKnownMimeTypeForExtension(
     82     const WebString& file_extension) {
     83   std::string mime_type;
     84   net::GetWellKnownMimeTypeFromExtension(
     85       base::FilePath::FromUTF16Unsafe(file_extension).value(), &mime_type);
     86   return WebString::fromUTF8(mime_type);
     87 }
     88 
     89 WebString SimpleWebMimeRegistryImpl::mimeTypeFromFile(
     90     const WebString& file_path) {
     91   std::string mime_type;
     92   net::GetMimeTypeFromFile(base::FilePath::FromUTF16Unsafe(file_path),
     93                            &mime_type);
     94   return WebString::fromUTF8(mime_type);
     95 }
     96 
     97 WebString SimpleWebMimeRegistryImpl::preferredExtensionForMIMEType(
     98     const WebString& mime_type) {
     99   base::FilePath::StringType file_extension;
    100   net::GetPreferredExtensionForMimeType(ToASCIIOrEmpty(mime_type),
    101                                         &file_extension);
    102   return base::FilePath(file_extension).AsUTF16Unsafe();
    103 }
    104 
    105 }  // namespace webkit_glue
    106