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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "webkit/glue/simple_webmimeregistry_impl.h"
#include "base/string_util.h"
#include "base/sys_string_conversions.h"
#include "base/utf_string_conversions.h"
#include "net/base/mime_util.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebString.h"
#include "webkit/glue/webkit_glue.h"
#include "webkit/media/key_systems.h"
using WebKit::WebString;
using WebKit::WebMimeRegistry;
namespace {
// Convert a WebString to ASCII, falling back on an empty string in the case
// of a non-ASCII string.
std::string ToASCIIOrEmpty(const WebString& string) {
return IsStringASCII(string) ? UTF16ToASCII(string) : std::string();
}
} // namespace
namespace webkit_glue {
WebMimeRegistry::SupportsType SimpleWebMimeRegistryImpl::supportsMIMEType(
const WebString& mime_type) {
return net::IsSupportedMimeType(ToASCIIOrEmpty(mime_type)) ?
WebMimeRegistry::IsSupported : WebMimeRegistry::IsNotSupported;
}
WebMimeRegistry::SupportsType SimpleWebMimeRegistryImpl::supportsImageMIMEType(
const WebString& mime_type) {
return net::IsSupportedImageMimeType(ToASCIIOrEmpty(mime_type)) ?
WebMimeRegistry::IsSupported : WebMimeRegistry::IsNotSupported;
}
WebMimeRegistry::SupportsType
SimpleWebMimeRegistryImpl::supportsJavaScriptMIMEType(
const WebString& mime_type) {
return net::IsSupportedJavascriptMimeType(ToASCIIOrEmpty(mime_type)) ?
WebMimeRegistry::IsSupported : WebMimeRegistry::IsNotSupported;
}
// When debugging layout tests failures in the test shell,
// see TestShellWebMimeRegistryImpl.
WebMimeRegistry::SupportsType SimpleWebMimeRegistryImpl::supportsMediaMIMEType(
const WebString& mime_type, const WebString& codecs) {
return supportsMediaMIMEType(mime_type, codecs, WebString());
}
WebMimeRegistry::SupportsType SimpleWebMimeRegistryImpl::supportsMediaMIMEType(
const WebString& mime_type,
const WebString& codecs,
const WebString& key_system) {
const std::string mime_type_ascii = ToASCIIOrEmpty(mime_type);
// Not supporting the container is a flat-out no.
if (!net::IsSupportedMediaMimeType(mime_type_ascii))
return IsNotSupported;
if (!key_system.isEmpty()) {
// Check whether the key system is supported with the mime_type and codecs.
// Not supporting the key system is a flat-out no.
if (!webkit_media::IsSupportedKeySystem(key_system))
return IsNotSupported;
std::vector<std::string> strict_codecs;
net::ParseCodecString(ToASCIIOrEmpty(codecs), &strict_codecs, false);
if (!webkit_media::IsSupportedKeySystemWithMediaMimeType(
mime_type_ascii, strict_codecs, ToASCIIOrEmpty(key_system)))
return IsNotSupported;
// Continue processing the mime_type and codecs.
}
// Check list of strict codecs to see if it is supported.
if (net::IsStrictMediaMimeType(mime_type_ascii)) {
// We support the container, but no codecs were specified.
if (codecs.isNull())
return MayBeSupported;
// Check if the codecs are a perfect match.
std::vector<std::string> strict_codecs;
net::ParseCodecString(ToASCIIOrEmpty(codecs), &strict_codecs, false);
if (!net::IsSupportedStrictMediaMimeType(mime_type_ascii, strict_codecs))
return IsNotSupported;
// Good to go!
return IsSupported;
}
// If we don't recognize the codec, it's possible we support it.
std::vector<std::string> parsed_codecs;
net::ParseCodecString(ToASCIIOrEmpty(codecs), &parsed_codecs, true);
if (!net::AreSupportedMediaCodecs(parsed_codecs))
return MayBeSupported;
// Otherwise we have a perfect match.
return IsSupported;
}
WebMimeRegistry::SupportsType
SimpleWebMimeRegistryImpl::supportsNonImageMIMEType(
const WebString& mime_type) {
return net::IsSupportedNonImageMimeType(ToASCIIOrEmpty(mime_type)) ?
WebMimeRegistry::IsSupported : WebMimeRegistry::IsNotSupported;
}
WebString SimpleWebMimeRegistryImpl::mimeTypeForExtension(
const WebString& file_extension) {
std::string mime_type;
net::GetMimeTypeFromExtension(WebStringToFilePathString(file_extension),
&mime_type);
return ASCIIToUTF16(mime_type);
}
WebString SimpleWebMimeRegistryImpl::wellKnownMimeTypeForExtension(
const WebString& file_extension) {
std::string mime_type;
net::GetWellKnownMimeTypeFromExtension(
WebStringToFilePathString(file_extension), &mime_type);
return ASCIIToUTF16(mime_type);
}
WebString SimpleWebMimeRegistryImpl::mimeTypeFromFile(
const WebString& file_path) {
std::string mime_type;
net::GetMimeTypeFromFile(FilePath(WebStringToFilePathString(file_path)),
&mime_type);
return ASCIIToUTF16(mime_type);
}
WebString SimpleWebMimeRegistryImpl::preferredExtensionForMIMEType(
const WebString& mime_type) {
FilePath::StringType file_extension;
net::GetPreferredExtensionForMimeType(ToASCIIOrEmpty(mime_type),
&file_extension);
return FilePathStringToWebString(file_extension);
}
} // namespace webkit_glue
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