1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/base/nsMimeTypeArray.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,298 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim: set ts=2 sw=2 et tw=79: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#include "nsMimeTypeArray.h"
1.11 +
1.12 +#include "mozilla/dom/MimeTypeArrayBinding.h"
1.13 +#include "mozilla/dom/MimeTypeBinding.h"
1.14 +#include "nsIDOMNavigator.h"
1.15 +#include "nsPluginArray.h"
1.16 +#include "nsIMIMEService.h"
1.17 +#include "nsIMIMEInfo.h"
1.18 +#include "Navigator.h"
1.19 +#include "nsServiceManagerUtils.h"
1.20 +
1.21 +using namespace mozilla;
1.22 +using namespace mozilla::dom;
1.23 +
1.24 +NS_IMPL_CYCLE_COLLECTING_ADDREF(nsMimeTypeArray)
1.25 +NS_IMPL_CYCLE_COLLECTING_RELEASE(nsMimeTypeArray)
1.26 +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsMimeTypeArray)
1.27 + NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
1.28 + NS_INTERFACE_MAP_ENTRY(nsISupports)
1.29 +NS_INTERFACE_MAP_END
1.30 +
1.31 +NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_3(nsMimeTypeArray,
1.32 + mWindow,
1.33 + mMimeTypes,
1.34 + mHiddenMimeTypes)
1.35 +
1.36 +nsMimeTypeArray::nsMimeTypeArray(nsPIDOMWindow* aWindow)
1.37 + : mWindow(aWindow)
1.38 +{
1.39 + SetIsDOMBinding();
1.40 +}
1.41 +
1.42 +nsMimeTypeArray::~nsMimeTypeArray()
1.43 +{
1.44 +}
1.45 +
1.46 +JSObject*
1.47 +nsMimeTypeArray::WrapObject(JSContext* aCx)
1.48 +{
1.49 + return MimeTypeArrayBinding::Wrap(aCx, this);
1.50 +}
1.51 +
1.52 +void
1.53 +nsMimeTypeArray::Refresh()
1.54 +{
1.55 + mMimeTypes.Clear();
1.56 + mHiddenMimeTypes.Clear();
1.57 +}
1.58 +
1.59 +nsPIDOMWindow*
1.60 +nsMimeTypeArray::GetParentObject() const
1.61 +{
1.62 + MOZ_ASSERT(mWindow);
1.63 + return mWindow;
1.64 +}
1.65 +
1.66 +nsMimeType*
1.67 +nsMimeTypeArray::Item(uint32_t aIndex)
1.68 +{
1.69 + bool unused;
1.70 + return IndexedGetter(aIndex, unused);
1.71 +}
1.72 +
1.73 +nsMimeType*
1.74 +nsMimeTypeArray::NamedItem(const nsAString& aName)
1.75 +{
1.76 + bool unused;
1.77 + return NamedGetter(aName, unused);
1.78 +}
1.79 +
1.80 +nsMimeType*
1.81 +nsMimeTypeArray::IndexedGetter(uint32_t aIndex, bool &aFound)
1.82 +{
1.83 + aFound = false;
1.84 +
1.85 + EnsurePluginMimeTypes();
1.86 +
1.87 + if (aIndex >= mMimeTypes.Length()) {
1.88 + return nullptr;
1.89 + }
1.90 +
1.91 + aFound = true;
1.92 +
1.93 + return mMimeTypes[aIndex];
1.94 +}
1.95 +
1.96 +static nsMimeType*
1.97 +FindMimeType(const nsTArray<nsRefPtr<nsMimeType> >& aMimeTypes,
1.98 + const nsAString& aType)
1.99 +{
1.100 + for (uint32_t i = 0; i < aMimeTypes.Length(); ++i) {
1.101 + nsMimeType* mimeType = aMimeTypes[i];
1.102 + if (aType.Equals(mimeType->Type())) {
1.103 + return mimeType;
1.104 + }
1.105 + }
1.106 +
1.107 + return nullptr;
1.108 +}
1.109 +
1.110 +nsMimeType*
1.111 +nsMimeTypeArray::NamedGetter(const nsAString& aName, bool &aFound)
1.112 +{
1.113 + aFound = false;
1.114 +
1.115 + EnsurePluginMimeTypes();
1.116 +
1.117 + nsString lowerName(aName);
1.118 + ToLowerCase(lowerName);
1.119 +
1.120 + nsMimeType* mimeType = FindMimeType(mMimeTypes, lowerName);
1.121 + if (!mimeType) {
1.122 + mimeType = FindMimeType(mHiddenMimeTypes, lowerName);
1.123 + }
1.124 +
1.125 + if (mimeType) {
1.126 + aFound = true;
1.127 + return mimeType;
1.128 + }
1.129 +
1.130 + // Now let's check with the MIME service.
1.131 + nsCOMPtr<nsIMIMEService> mimeSrv = do_GetService("@mozilla.org/mime;1");
1.132 + if (!mimeSrv) {
1.133 + return nullptr;
1.134 + }
1.135 +
1.136 + nsCOMPtr<nsIMIMEInfo> mimeInfo;
1.137 + mimeSrv->GetFromTypeAndExtension(NS_ConvertUTF16toUTF8(lowerName),
1.138 + EmptyCString(), getter_AddRefs(mimeInfo));
1.139 + if (!mimeInfo) {
1.140 + return nullptr;
1.141 + }
1.142 +
1.143 + // Now we check whether we can really claim to support this type
1.144 + nsHandlerInfoAction action = nsIHandlerInfo::saveToDisk;
1.145 + mimeInfo->GetPreferredAction(&action);
1.146 + if (action != nsIMIMEInfo::handleInternally) {
1.147 + bool hasHelper = false;
1.148 + mimeInfo->GetHasDefaultHandler(&hasHelper);
1.149 +
1.150 + if (!hasHelper) {
1.151 + nsCOMPtr<nsIHandlerApp> helper;
1.152 + mimeInfo->GetPreferredApplicationHandler(getter_AddRefs(helper));
1.153 +
1.154 + if (!helper) {
1.155 + // mime info from the OS may not have a PreferredApplicationHandler
1.156 + // so just check for an empty default description
1.157 + nsAutoString defaultDescription;
1.158 + mimeInfo->GetDefaultDescription(defaultDescription);
1.159 +
1.160 + if (defaultDescription.IsEmpty()) {
1.161 + // no support; just leave
1.162 + return nullptr;
1.163 + }
1.164 + }
1.165 + }
1.166 + }
1.167 +
1.168 + // If we got here, we support this type! Say so.
1.169 + aFound = true;
1.170 +
1.171 + // We don't want navigator.mimeTypes enumeration to expose MIME types with
1.172 + // application handlers, so add them to the list of hidden MIME types.
1.173 + nsMimeType *mt = new nsMimeType(mWindow, lowerName);
1.174 + mHiddenMimeTypes.AppendElement(mt);
1.175 +
1.176 + return mt;
1.177 +}
1.178 +
1.179 +bool
1.180 +nsMimeTypeArray::NameIsEnumerable(const nsAString& aName)
1.181 +{
1.182 + return true;
1.183 +}
1.184 +
1.185 +uint32_t
1.186 +nsMimeTypeArray::Length()
1.187 +{
1.188 + EnsurePluginMimeTypes();
1.189 +
1.190 + return mMimeTypes.Length();
1.191 +}
1.192 +
1.193 +void
1.194 +nsMimeTypeArray::GetSupportedNames(unsigned, nsTArray< nsString >& aRetval)
1.195 +{
1.196 + EnsurePluginMimeTypes();
1.197 +
1.198 + for (uint32_t i = 0; i < mMimeTypes.Length(); ++i) {
1.199 + aRetval.AppendElement(mMimeTypes[i]->Type());
1.200 + }
1.201 +}
1.202 +
1.203 +void
1.204 +nsMimeTypeArray::EnsurePluginMimeTypes()
1.205 +{
1.206 + if (!mMimeTypes.IsEmpty() || !mHiddenMimeTypes.IsEmpty() || !mWindow) {
1.207 + return;
1.208 + }
1.209 +
1.210 + nsCOMPtr<nsIDOMNavigator> navigator;
1.211 + mWindow->GetNavigator(getter_AddRefs(navigator));
1.212 +
1.213 + if (!navigator) {
1.214 + return;
1.215 + }
1.216 +
1.217 + ErrorResult rv;
1.218 + nsPluginArray *pluginArray =
1.219 + static_cast<Navigator*>(navigator.get())->GetPlugins(rv);
1.220 + if (!pluginArray) {
1.221 + return;
1.222 + }
1.223 +
1.224 + pluginArray->GetMimeTypes(mMimeTypes, mHiddenMimeTypes);
1.225 +}
1.226 +
1.227 +NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(nsMimeType, AddRef)
1.228 +NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(nsMimeType, Release)
1.229 +
1.230 +NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_2(nsMimeType, mWindow, mPluginElement)
1.231 +
1.232 +nsMimeType::nsMimeType(nsPIDOMWindow* aWindow, nsPluginElement* aPluginElement,
1.233 + uint32_t aPluginTagMimeIndex, const nsAString& aType)
1.234 + : mWindow(aWindow),
1.235 + mPluginElement(aPluginElement),
1.236 + mPluginTagMimeIndex(aPluginTagMimeIndex),
1.237 + mType(aType)
1.238 +{
1.239 + SetIsDOMBinding();
1.240 +}
1.241 +
1.242 +nsMimeType::nsMimeType(nsPIDOMWindow* aWindow, const nsAString& aType)
1.243 + : mWindow(aWindow),
1.244 + mPluginElement(nullptr),
1.245 + mPluginTagMimeIndex(0),
1.246 + mType(aType)
1.247 +{
1.248 + SetIsDOMBinding();
1.249 +}
1.250 +
1.251 +nsMimeType::~nsMimeType()
1.252 +{
1.253 +}
1.254 +
1.255 +nsPIDOMWindow*
1.256 +nsMimeType::GetParentObject() const
1.257 +{
1.258 + MOZ_ASSERT(mWindow);
1.259 + return mWindow;
1.260 +}
1.261 +
1.262 +JSObject*
1.263 +nsMimeType::WrapObject(JSContext* aCx)
1.264 +{
1.265 + return MimeTypeBinding::Wrap(aCx, this);
1.266 +}
1.267 +
1.268 +void
1.269 +nsMimeType::GetDescription(nsString& retval) const
1.270 +{
1.271 + retval.Truncate();
1.272 +
1.273 + if (mPluginElement) {
1.274 + CopyUTF8toUTF16(mPluginElement->PluginTag()->
1.275 + mMimeDescriptions[mPluginTagMimeIndex], retval);
1.276 + }
1.277 +}
1.278 +
1.279 +nsPluginElement*
1.280 +nsMimeType::GetEnabledPlugin() const
1.281 +{
1.282 + return (mPluginElement && mPluginElement->PluginTag()->IsEnabled()) ?
1.283 + mPluginElement : nullptr;
1.284 +}
1.285 +
1.286 +void
1.287 +nsMimeType::GetSuffixes(nsString& retval) const
1.288 +{
1.289 + retval.Truncate();
1.290 +
1.291 + if (mPluginElement) {
1.292 + CopyUTF8toUTF16(mPluginElement->PluginTag()->
1.293 + mExtensions[mPluginTagMimeIndex], retval);
1.294 + }
1.295 +}
1.296 +
1.297 +void
1.298 +nsMimeType::GetType(nsString& aRetval) const
1.299 +{
1.300 + aRetval = mType;
1.301 +}
