content/child/simple_webmimeregistry_impl.cc

   1 // Copyright 2014 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 "content/child/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 blink::WebString;
  15 using blink::WebMimeRegistry;
  16
  17 namespace content {
  18
  19 //static
  20 std::string SimpleWebMimeRegistryImpl::ToASCIIOrEmpty(const WebString& string) {
  21   return IsStringASCII(string) ? base::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,
  47     const WebString& codecs,
  48     const WebString& key_system) {
  49   // Media features are only supported at the content/renderer/ layer.
  50   return IsNotSupported;
  51 }
  52
  53 bool SimpleWebMimeRegistryImpl::supportsMediaSourceMIMEType(
  54     const WebString& mime_type,
  55     const WebString& codecs) {
  56   // Media features are only supported at the content/renderer layer.
  57   return false;
  58 }
  59
  60 bool SimpleWebMimeRegistryImpl::supportsEncryptedMediaMIMEType(
  61     const blink::WebString& key_system,
  62     const blink::WebString& mime_type,
  63     const blink::WebString& codecs) {
  64   // Media features are only supported at the content/renderer layer.
  65   return false;
  66 }
  67
  68 WebMimeRegistry::SupportsType
  69     SimpleWebMimeRegistryImpl::supportsNonImageMIMEType(
  70     const WebString& mime_type) {
  71   return net::IsSupportedNonImageMimeType(ToASCIIOrEmpty(mime_type)) ?
  72       WebMimeRegistry::IsSupported : WebMimeRegistry::IsNotSupported;
  73 }
  74
  75 WebString SimpleWebMimeRegistryImpl::mimeTypeForExtension(
  76     const WebString& file_extension) {
  77   std::string mime_type;
  78   net::GetMimeTypeFromExtension(
  79       base::FilePath::FromUTF16Unsafe(file_extension).value(), &mime_type);
  80   return WebString::fromUTF8(mime_type);
  81 }
  82
  83 WebString SimpleWebMimeRegistryImpl::wellKnownMimeTypeForExtension(
  84     const WebString& file_extension) {
  85   std::string mime_type;
  86   net::GetWellKnownMimeTypeFromExtension(
  87       base::FilePath::FromUTF16Unsafe(file_extension).value(), &mime_type);
  88   return WebString::fromUTF8(mime_type);
  89 }
  90
  91 WebString SimpleWebMimeRegistryImpl::mimeTypeFromFile(
  92     const WebString& file_path) {
  93   std::string mime_type;
  94   net::GetMimeTypeFromFile(base::FilePath::FromUTF16Unsafe(file_path),
  95                            &mime_type);
  96   return WebString::fromUTF8(mime_type);
  97 }
  98
  99 }  // namespace content