The Tor Browser / file comparison
comparison: docshell/base/nsWebNavigationInfo.cpp
docshell/base/nsWebNavigationInfo.cpp
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:e30f520456a5 |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "nsWebNavigationInfo.h" | |
| 7 #include "nsIWebNavigation.h" | |
| 8 #include "nsServiceManagerUtils.h" | |
| 9 #include "nsIDocumentLoaderFactory.h" | |
| 10 #include "nsIPluginHost.h" | |
| 11 #include "nsIDocShell.h" | |
| 12 #include "nsContentUtils.h" | |
| 13 #include "imgLoader.h" | |
| 14 | |
| 15 NS_IMPL_ISUPPORTS(nsWebNavigationInfo, nsIWebNavigationInfo) | |
| 16 | |
| 17 #define CONTENT_DLF_CONTRACT "@mozilla.org/content/document-loader-factory;1" | |
| 18 #define PLUGIN_DLF_CONTRACT \ | |
| 19 "@mozilla.org/content/plugin/document-loader-factory;1" | |
| 20 | |
| 21 nsresult | |
| 22 nsWebNavigationInfo::Init() | |
| 23 { | |
| 24 nsresult rv; | |
| 25 mCategoryManager = do_GetService(NS_CATEGORYMANAGER_CONTRACTID, &rv); | |
| 26 NS_ENSURE_SUCCESS(rv, rv); | |
| 27 | |
| 28 return NS_OK; | |
| 29 } | |
| 30 | |
| 31 NS_IMETHODIMP | |
| 32 nsWebNavigationInfo::IsTypeSupported(const nsACString& aType, | |
| 33 nsIWebNavigation* aWebNav, | |
| 34 uint32_t* aIsTypeSupported) | |
| 35 { | |
| 36 NS_PRECONDITION(aIsTypeSupported, "null out param?"); | |
| 37 | |
| 38 // Note to self: aWebNav could be an nsWebBrowser or an nsDocShell here (or | |
| 39 // an nsSHistory, but not much we can do with that). So if we start using | |
| 40 // it here, we need to be careful to get to the docshell correctly. | |
| 41 | |
| 42 // For now just report what the Gecko-Content-Viewers category has | |
| 43 // to say for itself. | |
| 44 *aIsTypeSupported = nsIWebNavigationInfo::UNSUPPORTED; | |
| 45 | |
| 46 const nsCString& flatType = PromiseFlatCString(aType); | |
| 47 nsresult rv = IsTypeSupportedInternal(flatType, aIsTypeSupported); | |
| 48 NS_ENSURE_SUCCESS(rv, rv); | |
| 49 | |
| 50 if (*aIsTypeSupported) { | |
| 51 return rv; | |
| 52 } | |
| 53 | |
| 54 // If this request is for a docShell that isn't going to allow plugins, | |
| 55 // there's no need to try and find a plugin to handle it. | |
| 56 nsCOMPtr<nsIDocShell> docShell(do_QueryInterface(aWebNav)); | |
| 57 bool allowed; | |
| 58 if (docShell && NS_SUCCEEDED(docShell->GetAllowPlugins(&allowed)) && !allowed) { | |
| 59 return NS_OK; | |
| 60 } | |
| 61 | |
| 62 // Try reloading plugins in case they've changed. | |
| 63 nsCOMPtr<nsIPluginHost> pluginHost = | |
| 64 do_GetService(MOZ_PLUGIN_HOST_CONTRACTID); | |
| 65 if (pluginHost) { | |
| 66 // false will ensure that currently running plugins will not | |
| 67 // be shut down | |
| 68 rv = pluginHost->ReloadPlugins(); | |
| 69 if (NS_SUCCEEDED(rv)) { | |
| 70 // OK, we reloaded plugins and there were new ones | |
| 71 // (otherwise NS_ERROR_PLUGINS_PLUGINSNOTCHANGED would have | |
| 72 // been returned). Try checking whether we can handle the | |
| 73 // content now. | |
| 74 return IsTypeSupportedInternal(flatType, aIsTypeSupported); | |
| 75 } | |
| 76 } | |
| 77 | |
| 78 return NS_OK; | |
| 79 } | |
| 80 | |
| 81 nsresult | |
| 82 nsWebNavigationInfo::IsTypeSupportedInternal(const nsCString& aType, | |
| 83 uint32_t* aIsSupported) | |
| 84 { | |
| 85 NS_PRECONDITION(aIsSupported, "Null out param?"); | |
| 86 | |
| 87 | |
| 88 nsContentUtils::ContentViewerType vtype = nsContentUtils::TYPE_UNSUPPORTED; | |
| 89 | |
| 90 nsCOMPtr<nsIDocumentLoaderFactory> docLoaderFactory = | |
| 91 nsContentUtils::FindInternalContentViewer(aType.get(), &vtype); | |
| 92 | |
| 93 switch (vtype) { | |
| 94 case nsContentUtils::TYPE_UNSUPPORTED: | |
| 95 *aIsSupported = nsIWebNavigationInfo::UNSUPPORTED; | |
| 96 break; | |
| 97 | |
| 98 case nsContentUtils::TYPE_PLUGIN: | |
| 99 *aIsSupported = nsIWebNavigationInfo::PLUGIN; | |
| 100 break; | |
| 101 | |
| 102 case nsContentUtils::TYPE_UNKNOWN: | |
| 103 *aIsSupported = nsIWebNavigationInfo::OTHER; | |
| 104 break; | |
| 105 | |
| 106 case nsContentUtils::TYPE_CONTENT: | |
| 107 // XXXbz we only need this because images register for the same | |
| 108 // contractid as documents, so we can't tell them apart based on | |
| 109 // contractid. | |
| 110 if (imgLoader::SupportImageWithMimeType(aType.get())) { | |
| 111 *aIsSupported = nsIWebNavigationInfo::IMAGE; | |
| 112 } | |
| 113 else { | |
| 114 *aIsSupported = nsIWebNavigationInfo::OTHER; | |
| 115 } | |
| 116 break; | |
| 117 } | |
| 118 | |
| 119 return NS_OK; | |
| 120 } |
