зеркало из https://github.com/mozilla/gecko-dev.git
434 строки
10 KiB
C++
434 строки
10 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Pierre Phaneuf <pp@ludusdesign.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsPluginArray.h"
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#include "nsMimeTypeArray.h"
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#include "Navigator.h"
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#include "nsIScriptGlobalObject.h"
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#include "nsIDOMNavigator.h"
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#include "nsIDOMMimeType.h"
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#include "nsIPluginHost.h"
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#include "nsIDocShell.h"
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#include "nsIWebNavigation.h"
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#include "nsDOMClassInfoID.h"
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#include "nsPluginError.h"
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#include "nsContentUtils.h"
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#include "nsPluginHost.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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nsPluginArray::nsPluginArray(Navigator* navigator,
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nsIDocShell *aDocShell)
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: mNavigator(navigator),
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mPluginHost(do_GetService(MOZ_PLUGIN_HOST_CONTRACTID)),
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mPluginCount(0),
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mPluginArray(nsnull),
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mDocShell(do_GetWeakReference(aDocShell))
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{
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}
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nsPluginArray::~nsPluginArray()
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{
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if (mPluginArray != nsnull) {
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for (PRUint32 i = 0; i < mPluginCount; i++) {
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NS_IF_RELEASE(mPluginArray[i]);
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}
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delete[] mPluginArray;
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}
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}
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DOMCI_DATA(PluginArray, nsPluginArray)
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// QueryInterface implementation for nsPluginArray
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NS_INTERFACE_MAP_BEGIN(nsPluginArray)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMPluginArray)
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NS_INTERFACE_MAP_ENTRY(nsIDOMPluginArray)
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NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(PluginArray)
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NS_INTERFACE_MAP_END
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NS_IMPL_ADDREF(nsPluginArray)
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NS_IMPL_RELEASE(nsPluginArray)
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NS_IMETHODIMP
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nsPluginArray::GetLength(PRUint32* aLength)
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{
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nsPluginHost *pluginHost = static_cast<nsPluginHost*>(mPluginHost.get());
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if (AllowPlugins() && pluginHost)
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return pluginHost->GetPluginCount(aLength);
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*aLength = 0;
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return NS_OK;
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}
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bool
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nsPluginArray::AllowPlugins()
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{
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bool allowPlugins = false;
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nsCOMPtr<nsIDocShell> docShell = do_QueryReferent(mDocShell);
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if (docShell)
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if (NS_FAILED(docShell->GetAllowPlugins(&allowPlugins)))
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allowPlugins = false;
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return allowPlugins;
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}
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nsIDOMPlugin*
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nsPluginArray::GetItemAt(PRUint32 aIndex, nsresult* aResult)
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{
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*aResult = NS_OK;
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if (!AllowPlugins())
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return nsnull;
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if (mPluginArray == nsnull) {
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*aResult = GetPlugins();
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if (*aResult != NS_OK)
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return nsnull;
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}
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return aIndex < mPluginCount ? mPluginArray[aIndex] : nsnull;
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}
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NS_IMETHODIMP
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nsPluginArray::Item(PRUint32 aIndex, nsIDOMPlugin** aReturn)
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{
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nsresult rv;
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NS_IF_ADDREF(*aReturn = GetItemAt(aIndex, &rv));
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return rv;
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}
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nsIDOMPlugin*
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nsPluginArray::GetNamedItem(const nsAString& aName, nsresult* aResult)
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{
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*aResult = NS_OK;
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if (!AllowPlugins())
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return nsnull;
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if (mPluginArray == nsnull) {
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*aResult = GetPlugins();
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if (*aResult != NS_OK)
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return nsnull;
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}
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for (PRUint32 i = 0; i < mPluginCount; i++) {
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nsAutoString pluginName;
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nsIDOMPlugin* plugin = mPluginArray[i];
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if (plugin->GetName(pluginName) == NS_OK && pluginName.Equals(aName)) {
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return plugin;
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}
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}
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return nsnull;
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}
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NS_IMETHODIMP
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nsPluginArray::NamedItem(const nsAString& aName, nsIDOMPlugin** aReturn)
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{
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NS_PRECONDITION(nsnull != aReturn, "null arg");
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nsresult rv;
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NS_IF_ADDREF(*aReturn = GetNamedItem(aName, &rv));
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return rv;
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}
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nsresult
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nsPluginArray::GetPluginHost(nsIPluginHost** aPluginHost)
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{
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NS_ENSURE_ARG_POINTER(aPluginHost);
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nsresult rv = NS_OK;
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if (!mPluginHost) {
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mPluginHost = do_GetService(MOZ_PLUGIN_HOST_CONTRACTID, &rv);
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if (NS_FAILED(rv)) {
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return rv;
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}
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}
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*aPluginHost = mPluginHost;
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NS_IF_ADDREF(*aPluginHost);
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return rv;
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}
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void
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nsPluginArray::Invalidate()
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{
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mDocShell = nsnull;
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mNavigator = nsnull;
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}
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NS_IMETHODIMP
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nsPluginArray::Refresh(bool aReloadDocuments)
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{
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nsresult res = NS_OK;
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if (!AllowPlugins())
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return NS_SUCCESS_LOSS_OF_INSIGNIFICANT_DATA;
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if (!mPluginHost) {
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mPluginHost = do_GetService(MOZ_PLUGIN_HOST_CONTRACTID, &res);
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}
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if(NS_FAILED(res)) {
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return res;
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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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bool pluginsNotChanged = false;
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if(mPluginHost)
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pluginsNotChanged = (NS_ERROR_PLUGINS_PLUGINSNOTCHANGED == mPluginHost->ReloadPlugins(aReloadDocuments));
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// no need to reload the page if plugins have not been changed
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// in fact, if we do reload we can hit recursive load problem, see bug 93351
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if(pluginsNotChanged)
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return res;
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nsCOMPtr<nsIWebNavigation> webNav = do_QueryReferent(mDocShell);
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if (mPluginArray != nsnull) {
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for (PRUint32 i = 0; i < mPluginCount; i++)
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NS_IF_RELEASE(mPluginArray[i]);
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delete[] mPluginArray;
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}
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mPluginCount = 0;
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mPluginArray = nsnull;
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if (mNavigator)
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mNavigator->RefreshMIMEArray();
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if (aReloadDocuments && webNav)
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webNav->Reload(nsIWebNavigation::LOAD_FLAGS_NONE);
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return res;
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}
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nsresult
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nsPluginArray::GetPlugins()
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{
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nsresult rv = GetLength(&mPluginCount);
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if (NS_SUCCEEDED(rv)) {
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mPluginArray = new nsIDOMPlugin*[mPluginCount];
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if (!mPluginArray)
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return NS_ERROR_OUT_OF_MEMORY;
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if (!mPluginCount)
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return NS_OK;
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nsPluginHost *pluginHost = static_cast<nsPluginHost*>(mPluginHost.get());
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rv = pluginHost->GetPlugins(mPluginCount, mPluginArray);
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if (NS_SUCCEEDED(rv)) {
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// need to wrap each of these with a nsPluginElement, which
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// is scriptable.
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for (PRUint32 i = 0; i < mPluginCount; i++) {
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nsIDOMPlugin* wrapper = new nsPluginElement(mPluginArray[i]);
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NS_IF_ADDREF(wrapper);
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mPluginArray[i] = wrapper;
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}
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} else {
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/* XXX this code is all broken. If GetPlugins fails, there's no contract
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* explaining what should happen. Instead of deleting elements in an
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* array of random pointers, we mark the array as 0 length.
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*/
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mPluginCount = 0;
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}
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}
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return rv;
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}
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//
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nsPluginElement::nsPluginElement(nsIDOMPlugin* plugin)
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{
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mPlugin = plugin; // don't AddRef, see nsPluginArray::Item.
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mMimeTypeCount = 0;
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mMimeTypeArray = nsnull;
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}
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nsPluginElement::~nsPluginElement()
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{
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NS_IF_RELEASE(mPlugin);
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if (mMimeTypeArray != nsnull) {
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for (PRUint32 i = 0; i < mMimeTypeCount; i++) {
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nsMimeType* mt = static_cast<nsMimeType*>(mMimeTypeArray[i]);
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if (mt) {
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mt->DetachPlugin();
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NS_RELEASE(mt);
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}
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}
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delete[] mMimeTypeArray;
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}
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}
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DOMCI_DATA(Plugin, nsPluginElement)
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// QueryInterface implementation for nsPluginElement
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NS_INTERFACE_MAP_BEGIN(nsPluginElement)
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_ENTRY(nsIDOMPlugin)
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NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(Plugin)
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NS_INTERFACE_MAP_END
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NS_IMPL_ADDREF(nsPluginElement)
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NS_IMPL_RELEASE(nsPluginElement)
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NS_IMETHODIMP
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nsPluginElement::GetDescription(nsAString& aDescription)
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{
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return mPlugin->GetDescription(aDescription);
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}
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NS_IMETHODIMP
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nsPluginElement::GetFilename(nsAString& aFilename)
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{
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return mPlugin->GetFilename(aFilename);
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}
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NS_IMETHODIMP
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nsPluginElement::GetVersion(nsAString& aVersion)
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{
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return mPlugin->GetVersion(aVersion);
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}
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NS_IMETHODIMP
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nsPluginElement::GetName(nsAString& aName)
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{
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return mPlugin->GetName(aName);
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}
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NS_IMETHODIMP
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nsPluginElement::GetLength(PRUint32* aLength)
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{
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return mPlugin->GetLength(aLength);
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}
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nsIDOMMimeType*
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nsPluginElement::GetItemAt(PRUint32 aIndex, nsresult *aResult)
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{
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if (mMimeTypeArray == nsnull) {
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*aResult = GetMimeTypes();
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if (*aResult != NS_OK)
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return nsnull;
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}
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if (aIndex >= mMimeTypeCount) {
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*aResult = NS_ERROR_FAILURE;
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return nsnull;
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}
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*aResult = NS_OK;
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return mMimeTypeArray[aIndex];
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}
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NS_IMETHODIMP
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nsPluginElement::Item(PRUint32 aIndex, nsIDOMMimeType** aReturn)
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{
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nsresult rv;
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NS_IF_ADDREF(*aReturn = GetItemAt(aIndex, &rv));
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return rv;
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}
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nsIDOMMimeType*
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nsPluginElement::GetNamedItem(const nsAString& aName, nsresult *aResult)
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{
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if (mMimeTypeArray == nsnull) {
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*aResult = GetMimeTypes();
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if (*aResult != NS_OK)
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return nsnull;
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}
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*aResult = NS_OK;
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for (PRUint32 i = 0; i < mMimeTypeCount; i++) {
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nsAutoString type;
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nsIDOMMimeType* mimeType = mMimeTypeArray[i];
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if (mimeType->GetType(type) == NS_OK && type.Equals(aName)) {
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return mimeType;
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}
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}
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return nsnull;
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}
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NS_IMETHODIMP
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nsPluginElement::NamedItem(const nsAString& aName, nsIDOMMimeType** aReturn)
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{
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nsresult rv;
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NS_IF_ADDREF(*aReturn = GetNamedItem(aName, &rv));
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return rv;
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}
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nsresult
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nsPluginElement::GetMimeTypes()
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{
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nsresult rv = mPlugin->GetLength(&mMimeTypeCount);
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if (rv == NS_OK) {
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mMimeTypeArray = new nsIDOMMimeType*[mMimeTypeCount];
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if (mMimeTypeArray == nsnull)
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return NS_ERROR_OUT_OF_MEMORY;
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for (PRUint32 i = 0; i < mMimeTypeCount; i++) {
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nsCOMPtr<nsIDOMMimeType> mimeType;
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rv = mPlugin->Item(i, getter_AddRefs(mimeType));
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if (rv != NS_OK)
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break;
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mimeType = new nsMimeType(this, mimeType);
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NS_IF_ADDREF(mMimeTypeArray[i] = mimeType);
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}
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}
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return rv;
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}
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