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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /docshell/base/nsWebNavigationInfo.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'docshell/base/nsWebNavigationInfo.cpp')
-rw-r--r--docshell/base/nsWebNavigationInfo.cpp134
1 files changed, 134 insertions, 0 deletions
diff --git a/docshell/base/nsWebNavigationInfo.cpp b/docshell/base/nsWebNavigationInfo.cpp
new file mode 100644
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+++ b/docshell/base/nsWebNavigationInfo.cpp
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsWebNavigationInfo.h"
+#include "nsIWebNavigation.h"
+#include "nsServiceManagerUtils.h"
+#include "nsIDocumentLoaderFactory.h"
+#include "nsIPluginHost.h"
+#include "nsIDocShell.h"
+#include "nsContentUtils.h"
+#include "imgLoader.h"
+
+NS_IMPL_ISUPPORTS(nsWebNavigationInfo, nsIWebNavigationInfo)
+
+#define CONTENT_DLF_CONTRACT "@mozilla.org/content/document-loader-factory;1"
+#define PLUGIN_DLF_CONTRACT \
+ "@mozilla.org/content/plugin/document-loader-factory;1"
+
+nsresult
+nsWebNavigationInfo::Init()
+{
+ nsresult rv;
+ mCategoryManager = do_GetService(NS_CATEGORYMANAGER_CONTRACTID, &rv);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsWebNavigationInfo::IsTypeSupported(const nsACString& aType,
+ nsIWebNavigation* aWebNav,
+ uint32_t* aIsTypeSupported)
+{
+ NS_PRECONDITION(aIsTypeSupported, "null out param?");
+
+ // Note to self: aWebNav could be an nsWebBrowser or an nsDocShell here (or
+ // an nsSHistory, but not much we can do with that). So if we start using
+ // it here, we need to be careful to get to the docshell correctly.
+
+ // For now just report what the Gecko-Content-Viewers category has
+ // to say for itself.
+ *aIsTypeSupported = nsIWebNavigationInfo::UNSUPPORTED;
+
+ // We want to claim that the type for PDF documents is unsupported,
+ // so that the internal PDF viewer's stream converted will get used.
+ if (aType.LowerCaseEqualsLiteral("application/pdf") &&
+ nsContentUtils::IsPDFJSEnabled()) {
+ return NS_OK;
+ }
+
+ // We want to claim that the type for SWF movies is unsupported,
+ // so that the internal SWF player's stream converter will get used.
+ if (aType.LowerCaseEqualsLiteral("application/x-shockwave-flash") &&
+ nsContentUtils::IsSWFPlayerEnabled()) {
+ return NS_OK;
+ }
+
+ const nsCString& flatType = PromiseFlatCString(aType);
+ nsresult rv = IsTypeSupportedInternal(flatType, aIsTypeSupported);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (*aIsTypeSupported) {
+ return rv;
+ }
+
+ // If this request is for a docShell that isn't going to allow plugins,
+ // there's no need to try and find a plugin to handle it.
+ nsCOMPtr<nsIDocShell> docShell(do_QueryInterface(aWebNav));
+ bool allowed;
+ if (docShell &&
+ NS_SUCCEEDED(docShell->GetAllowPlugins(&allowed)) && !allowed) {
+ return NS_OK;
+ }
+
+ // Try reloading plugins in case they've changed.
+ nsCOMPtr<nsIPluginHost> pluginHost =
+ do_GetService(MOZ_PLUGIN_HOST_CONTRACTID);
+ if (pluginHost) {
+ // false will ensure that currently running plugins will not
+ // be shut down
+ rv = pluginHost->ReloadPlugins();
+ if (NS_SUCCEEDED(rv)) {
+ // OK, we reloaded plugins and there were new ones
+ // (otherwise NS_ERROR_PLUGINS_PLUGINSNOTCHANGED would have
+ // been returned). Try checking whether we can handle the
+ // content now.
+ return IsTypeSupportedInternal(flatType, aIsTypeSupported);
+ }
+ }
+
+ return NS_OK;
+}
+
+nsresult
+nsWebNavigationInfo::IsTypeSupportedInternal(const nsCString& aType,
+ uint32_t* aIsSupported)
+{
+ NS_PRECONDITION(aIsSupported, "Null out param?");
+
+ nsContentUtils::ContentViewerType vtype = nsContentUtils::TYPE_UNSUPPORTED;
+
+ nsCOMPtr<nsIDocumentLoaderFactory> docLoaderFactory =
+ nsContentUtils::FindInternalContentViewer(aType, &vtype);
+
+ switch (vtype) {
+ case nsContentUtils::TYPE_UNSUPPORTED:
+ *aIsSupported = nsIWebNavigationInfo::UNSUPPORTED;
+ break;
+
+ case nsContentUtils::TYPE_PLUGIN:
+ *aIsSupported = nsIWebNavigationInfo::PLUGIN;
+ break;
+
+ case nsContentUtils::TYPE_UNKNOWN:
+ *aIsSupported = nsIWebNavigationInfo::OTHER;
+ break;
+
+ case nsContentUtils::TYPE_CONTENT:
+ // XXXbz we only need this because images register for the same
+ // contractid as documents, so we can't tell them apart based on
+ // contractid.
+ if (imgLoader::SupportImageWithMimeType(aType.get())) {
+ *aIsSupported = nsIWebNavigationInfo::IMAGE;
+ } else {
+ *aIsSupported = nsIWebNavigationInfo::OTHER;
+ }
+ break;
+ }
+
+ return NS_OK;
+}