diff options
Diffstat (limited to 'dom/base/nsPluginArray.cpp')
-rw-r--r-- | dom/base/nsPluginArray.cpp | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/dom/base/nsPluginArray.cpp b/dom/base/nsPluginArray.cpp new file mode 100644 index 0000000000..7517f0506c --- /dev/null +++ b/dom/base/nsPluginArray.cpp @@ -0,0 +1,150 @@ +/* -*- 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 "nsPluginArray.h" + +#include "mozilla/dom/PluginArrayBinding.h" +#include "mozilla/dom/PluginBinding.h" +#include "mozilla/StaticPrefs_pdfjs.h" + +#include "nsMimeTypeArray.h" +#include "nsPIDOMWindow.h" +#include "nsContentUtils.h" + +using namespace mozilla; +using namespace mozilla::dom; + +// These plugin and mime types are hard-coded by the HTML spec. +// The "main" plugin name is used with the only plugin that is +// referenced by MIME types (via nsMimeType::GetEnabledPlugin). +// The "extra" of the plugin names are associated with MIME types that +// reference the main plugin. +// This is all defined in the HTML spec, section 8.9.1.6 +// "PDF Viewing Support". +static const nsLiteralString kMainPluginName = u"PDF Viewer"_ns; +static const nsLiteralString kExtraPluginNames[] = { + u"Chrome PDF Viewer"_ns, u"Chromium PDF Viewer"_ns, + u"Microsoft Edge PDF Viewer"_ns, u"WebKit built-in PDF"_ns}; +static const nsLiteralString kMimeTypeNames[] = {u"application/pdf"_ns, + u"text/pdf"_ns}; + +nsPluginArray::nsPluginArray(nsPIDOMWindowInner* aWindow) : mWindow(aWindow) { + // Create the hard-coded PDF plugin types that share MIME type arrays. + mPlugins[0] = MakeRefPtr<nsPluginElement>(this, aWindow, kMainPluginName); + + mozilla::Array<RefPtr<nsMimeType>, 2> mimeTypes; + for (uint32_t i = 0; i < ArrayLength(kMimeTypeNames); ++i) { + mimeTypes[i] = MakeRefPtr<nsMimeType>(mPlugins[0], kMimeTypeNames[i]); + } + mMimeTypeArray = MakeRefPtr<nsMimeTypeArray>(aWindow, mimeTypes); + + for (uint32_t i = 0; i < ArrayLength(kExtraPluginNames); ++i) { + mPlugins[i + 1] = + MakeRefPtr<nsPluginElement>(this, aWindow, kExtraPluginNames[i]); + } +} + +nsPluginArray::~nsPluginArray() = default; + +nsPIDOMWindowInner* nsPluginArray::GetParentObject() const { + MOZ_ASSERT(mWindow); + return mWindow; +} + +JSObject* nsPluginArray::WrapObject(JSContext* aCx, + JS::Handle<JSObject*> aGivenProto) { + return PluginArray_Binding::Wrap(aCx, this, aGivenProto); +} + +nsPluginElement* nsPluginArray::IndexedGetter(uint32_t aIndex, bool& aFound) { + if (!ForceNoPlugins() && aIndex < ArrayLength(mPlugins)) { + aFound = true; + return mPlugins[aIndex]; + } + + aFound = false; + return nullptr; +} + +nsPluginElement* nsPluginArray::NamedGetter(const nsAString& aName, + bool& aFound) { + if (ForceNoPlugins()) { + aFound = false; + return nullptr; + } + + for (const auto& plugin : mPlugins) { + if (plugin->Name().Equals(aName)) { + aFound = true; + return plugin; + } + } + + aFound = false; + return nullptr; +} + +void nsPluginArray::GetSupportedNames(nsTArray<nsString>& aRetval) { + if (ForceNoPlugins()) { + return; + } + + for (auto& plugin : mPlugins) { + aRetval.AppendElement(plugin->Name()); + } +} + +bool nsPluginArray::ForceNoPlugins() { return StaticPrefs::pdfjs_disabled(); } + +NS_IMPL_CYCLE_COLLECTING_ADDREF(nsPluginArray) +NS_IMPL_CYCLE_COLLECTING_RELEASE(nsPluginArray) +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsPluginArray) + NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY + NS_INTERFACE_MAP_ENTRY(nsISupports) + NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference) +NS_INTERFACE_MAP_END + +NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_WEAK(nsPluginArray, mPlugins[0], + mPlugins[1], mPlugins[2], + mPlugins[3], mPlugins[4], + mMimeTypeArray, mWindow) + +// nsPluginElement implementation. + +nsPluginElement::nsPluginElement(nsPluginArray* aPluginArray, + nsPIDOMWindowInner* aWindow, + const nsAString& aName) + : mPluginArray(aPluginArray), mWindow(aWindow), mName(aName) {} + +nsPluginArray* nsPluginElement::GetParentObject() const { return mPluginArray; } + +JSObject* nsPluginElement::WrapObject(JSContext* aCx, + JS::Handle<JSObject*> aGivenProto) { + return Plugin_Binding::Wrap(aCx, this, aGivenProto); +} + +nsMimeType* nsPluginElement::IndexedGetter(uint32_t aIndex, bool& aFound) { + return MimeTypeArray()->IndexedGetter(aIndex, aFound); +} + +nsMimeType* nsPluginElement::NamedGetter(const nsAString& aName, bool& aFound) { + return MimeTypeArray()->NamedGetter(aName, aFound); +} + +void nsPluginElement::GetSupportedNames(nsTArray<nsString>& retval) { + return MimeTypeArray()->GetSupportedNames(retval); +} + +uint32_t nsPluginElement::Length() { return MimeTypeArray()->Length(); } + +NS_IMPL_CYCLE_COLLECTING_ADDREF(nsPluginElement) +NS_IMPL_CYCLE_COLLECTING_RELEASE(nsPluginElement) +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsPluginElement) + NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY + NS_INTERFACE_MAP_ENTRY(nsISupports) +NS_INTERFACE_MAP_END + +NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(nsPluginElement, mWindow, mPluginArray) |