mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
408 lines
8.5 KiB
C++
408 lines
8.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsPluginArray.h"
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#include "mozilla/dom/PluginArrayBinding.h"
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#include "mozilla/dom/PluginBinding.h"
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#include "nsMimeTypeArray.h"
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#include "Navigator.h"
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#include "nsIDocShell.h"
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#include "nsIWebNavigation.h"
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#include "nsPluginHost.h"
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#include "nsPluginTags.h"
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#include "nsIObserverService.h"
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#include "nsIWeakReference.h"
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#include "mozilla/Services.h"
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#include "nsIInterfaceRequestorUtils.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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nsPluginArray::nsPluginArray(nsPIDOMWindow* aWindow)
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: mWindow(aWindow)
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{
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SetIsDOMBinding();
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}
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void
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nsPluginArray::Init()
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{
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nsCOMPtr<nsIObserverService> obsService =
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mozilla::services::GetObserverService();
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if (obsService) {
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obsService->AddObserver(this, "plugin-info-updated", true);
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}
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}
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nsPluginArray::~nsPluginArray()
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{
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}
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nsPIDOMWindow*
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nsPluginArray::GetParentObject() const
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{
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MOZ_ASSERT(mWindow);
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return mWindow;
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}
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JSObject*
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nsPluginArray::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aScope)
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{
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return PluginArrayBinding::Wrap(aCx, aScope, this);
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}
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NS_IMPL_CYCLE_COLLECTING_ADDREF(nsPluginArray)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(nsPluginArray)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsPluginArray)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIObserver)
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NS_INTERFACE_MAP_ENTRY(nsIObserver)
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NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
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NS_INTERFACE_MAP_END
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_2(nsPluginArray,
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mWindow,
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mPlugins)
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void
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nsPluginArray::GetPlugins(nsTArray<nsRefPtr<nsPluginElement> >& aPlugins)
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{
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aPlugins.Clear();
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if (!AllowPlugins()) {
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return;
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}
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if (mPlugins.IsEmpty()) {
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EnsurePlugins();
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}
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aPlugins = mPlugins;
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}
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nsPluginElement*
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nsPluginArray::Item(uint32_t aIndex)
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{
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bool unused;
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return IndexedGetter(aIndex, unused);
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}
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nsPluginElement*
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nsPluginArray::NamedItem(const nsAString& aName)
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{
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bool unused;
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return NamedGetter(aName, unused);
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}
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void
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nsPluginArray::Refresh(bool aReloadDocuments)
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{
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nsRefPtr<nsPluginHost> pluginHost = nsPluginHost::GetInst();
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if(!AllowPlugins() || !pluginHost) {
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return;
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}
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// NS_ERROR_PLUGINS_PLUGINSNOTCHANGED on reloading plugins indicates
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// that plugins did not change and was not reloaded
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if (pluginHost->ReloadPlugins() ==
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NS_ERROR_PLUGINS_PLUGINSNOTCHANGED) {
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nsTArray<nsRefPtr<nsPluginTag> > newPluginTags;
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pluginHost->GetPlugins(newPluginTags);
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// Check if the number of plugins we know about are different from
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// the number of plugin tags the plugin host knows about. If the
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// lengths are different, we refresh. This is safe because we're
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// notified for every plugin enabling/disabling event that
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// happens, and therefore the lengths will be in sync only when
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// the both arrays contain the same plugin tags (though as
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// different types).
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if (newPluginTags.Length() == mPlugins.Length()) {
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return;
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}
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}
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mPlugins.Clear();
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nsCOMPtr<nsIDOMNavigator> navigator;
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mWindow->GetNavigator(getter_AddRefs(navigator));
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if (!navigator) {
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return;
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}
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static_cast<mozilla::dom::Navigator*>(navigator.get())->RefreshMIMEArray();
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nsCOMPtr<nsIWebNavigation> webNav = do_GetInterface(mWindow);
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if (aReloadDocuments && webNav) {
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webNav->Reload(nsIWebNavigation::LOAD_FLAGS_NONE);
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}
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}
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nsPluginElement*
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nsPluginArray::IndexedGetter(uint32_t aIndex, bool &aFound)
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{
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aFound = false;
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if (!AllowPlugins()) {
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return nullptr;
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}
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if (mPlugins.IsEmpty()) {
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EnsurePlugins();
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}
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aFound = aIndex < mPlugins.Length();
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return aFound ? mPlugins[aIndex] : nullptr;
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}
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void
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nsPluginArray::Invalidate()
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{
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nsCOMPtr<nsIObserverService> obsService =
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mozilla::services::GetObserverService();
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if (obsService) {
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obsService->RemoveObserver(this, "plugin-info-updated");
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}
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}
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nsPluginElement*
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nsPluginArray::NamedGetter(const nsAString& aName, bool &aFound)
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{
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aFound = false;
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if (!AllowPlugins()) {
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return nullptr;
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}
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if (mPlugins.IsEmpty()) {
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EnsurePlugins();
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}
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for (uint32_t i = 0; i < mPlugins.Length(); ++i) {
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nsAutoString pluginName;
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nsPluginElement* plugin = mPlugins[i];
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plugin->GetName(pluginName);
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if (pluginName.Equals(aName)) {
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aFound = true;
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return plugin;
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}
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}
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return nullptr;
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}
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uint32_t
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nsPluginArray::Length()
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{
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if (!AllowPlugins()) {
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return 0;
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}
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if (mPlugins.IsEmpty()) {
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EnsurePlugins();
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}
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return mPlugins.Length();
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}
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void
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nsPluginArray::GetSupportedNames(nsTArray< nsString >& aRetval)
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{
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aRetval.Clear();
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if (!AllowPlugins()) {
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return;
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}
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for (uint32_t i = 0; i < mPlugins.Length(); ++i) {
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nsAutoString pluginName;
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mPlugins[i]->GetName(pluginName);
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aRetval.AppendElement(pluginName);
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}
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}
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NS_IMETHODIMP
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nsPluginArray::Observe(nsISupports *aSubject, const char *aTopic,
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const PRUnichar *aData) {
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if (!nsCRT::strcmp(aTopic, "plugin-info-updated")) {
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Refresh(false);
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}
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return NS_OK;
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}
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bool
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nsPluginArray::AllowPlugins() const
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{
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nsCOMPtr<nsIDocShell> docShell = do_GetInterface(mWindow);
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return docShell && docShell->PluginsAllowedInCurrentDoc();
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}
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void
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nsPluginArray::EnsurePlugins()
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{
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nsRefPtr<nsPluginHost> pluginHost = nsPluginHost::GetInst();
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if (!mPlugins.IsEmpty() || !pluginHost) {
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// We already have an array of plugin elements, or no plugin host
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return;
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}
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nsTArray<nsRefPtr<nsPluginTag> > pluginTags;
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pluginHost->GetPlugins(pluginTags);
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// need to wrap each of these with a nsPluginElement, which is
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// scriptable.
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for (uint32_t i = 0; i < pluginTags.Length(); ++i) {
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mPlugins.AppendElement(new nsPluginElement(mWindow, pluginTags[i]));
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}
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}
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// nsPluginElement implementation.
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NS_IMPL_CYCLE_COLLECTING_ADDREF(nsPluginElement)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(nsPluginElement)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsPluginElement)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_2(nsPluginElement, mWindow, mMimeTypes)
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nsPluginElement::nsPluginElement(nsPIDOMWindow* aWindow,
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nsPluginTag* aPluginTag)
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: mWindow(aWindow),
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mPluginTag(aPluginTag)
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{
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SetIsDOMBinding();
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}
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nsPIDOMWindow*
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nsPluginElement::GetParentObject() const
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{
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MOZ_ASSERT(mWindow);
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return mWindow;
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}
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JSObject*
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nsPluginElement::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aScope)
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{
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return PluginBinding::Wrap(aCx, aScope, this);
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}
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void
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nsPluginElement::GetDescription(nsString& retval) const
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{
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CopyUTF8toUTF16(mPluginTag->mDescription, retval);
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}
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void
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nsPluginElement::GetFilename(nsString& retval) const
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{
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CopyUTF8toUTF16(mPluginTag->mFileName, retval);
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}
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void
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nsPluginElement::GetVersion(nsString& retval) const
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{
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CopyUTF8toUTF16(mPluginTag->mVersion, retval);
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}
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void
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nsPluginElement::GetName(nsString& retval) const
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{
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CopyUTF8toUTF16(mPluginTag->mName, retval);
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}
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nsMimeType*
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nsPluginElement::Item(uint32_t aIndex)
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{
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EnsureMimeTypes();
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return mMimeTypes.SafeElementAt(aIndex);
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}
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nsMimeType*
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nsPluginElement::NamedItem(const nsAString& aName)
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{
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bool unused;
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return NamedGetter(aName, unused);
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}
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nsMimeType*
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nsPluginElement::IndexedGetter(uint32_t aIndex, bool &aFound)
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{
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EnsureMimeTypes();
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aFound = aIndex < mMimeTypes.Length();
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return aFound ? mMimeTypes[aIndex] : nullptr;
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}
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nsMimeType*
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nsPluginElement::NamedGetter(const nsAString& aName, bool &aFound)
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{
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EnsureMimeTypes();
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aFound = false;
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for (uint32_t i = 0; i < mMimeTypes.Length(); ++i) {
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if (mMimeTypes[i]->Type().Equals(aName)) {
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aFound = true;
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return mMimeTypes[i];
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}
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}
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return nullptr;
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}
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uint32_t
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nsPluginElement::Length()
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{
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EnsureMimeTypes();
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return mMimeTypes.Length();
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}
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void
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nsPluginElement::GetSupportedNames(nsTArray< nsString >& retval)
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{
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EnsureMimeTypes();
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for (uint32_t i = 0; i < mMimeTypes.Length(); ++i) {
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retval.AppendElement(mMimeTypes[i]->Type());
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}
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}
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nsTArray<nsRefPtr<nsMimeType> >&
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nsPluginElement::MimeTypes()
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{
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EnsureMimeTypes();
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return mMimeTypes;
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}
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void
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nsPluginElement::EnsureMimeTypes()
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{
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if (!mMimeTypes.IsEmpty()) {
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return;
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}
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for (uint32_t i = 0; i < mPluginTag->mMimeTypes.Length(); ++i) {
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NS_ConvertUTF8toUTF16 type(mPluginTag->mMimeTypes[i]);
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mMimeTypes.AppendElement(new nsMimeType(mWindow, this, i, type));
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}
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}
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