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lightning-sunbird  0.9+nobinonly
EmbedContentListener.cpp
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
00002  *
00003  * ***** BEGIN LICENSE BLOCK *****
00004  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00005  *
00006  * The contents of this file are subject to the Mozilla Public License Version
00007  * 1.1 (the "License"); you may not use this file except in compliance with
00008  * the License. You may obtain a copy of the License at
00009  * http://www.mozilla.org/MPL/
00010  *
00011  * Software distributed under the License is distributed on an "AS IS" basis,
00012  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00013  * for the specific language governing rights and limitations under the
00014  * License.
00015  *
00016  * The Original Code is mozilla.org code.
00017  *
00018  * The Initial Developer of the Original Code is
00019  *  Zack Rusin <zack@kde.org>.
00020  * Portions created by the Initial Developer are Copyright (C) 2004
00021  * the Initial Developer. All Rights Reserved.
00022  *
00023  * Contributor(s):
00024  *   Zack Rusin <zack@kde.org>
00025  *
00026  * Alternatively, the contents of this file may be used under the terms of
00027  * either the GNU General Public License Version 2 or later (the "GPL"), or
00028  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00029  * in which case the provisions of the GPL or the LGPL are applicable instead
00030  * of those above. If you wish to allow use of your version of this file only
00031  * under the terms of either the GPL or the LGPL, and not to allow others to
00032  * use your version of this file under the terms of the MPL, indicate your
00033  * decision by deleting the provisions above and replace them with the notice
00034  * and other provisions required by the GPL or the LGPL. If you do not delete
00035  * the provisions above, a recipient may use your version of this file under
00036  * the terms of any one of the MPL, the GPL or the LGPL.
00037  *
00038  * ***** END LICENSE BLOCK ***** */
00039 #include <strings.h>
00040 #include <nsXPIDLString.h>
00041 
00042 #include "nsIURI.h"
00043 
00044 #include "EmbedContentListener.h"
00045 #include "qgeckoembed.h"
00046 
00047 #include "nsServiceManagerUtils.h"
00048 #include "nsIWebNavigationInfo.h"
00049 #include "nsDocShellCID.h"
00050 
00051 EmbedContentListener::EmbedContentListener(QGeckoEmbed *aOwner)
00052 {
00053     mOwner = aOwner;
00054 }
00055 
00056 EmbedContentListener::~EmbedContentListener()
00057 {
00058 }
00059 
00060 NS_IMPL_ISUPPORTS2(EmbedContentListener,
00061                    nsIURIContentListener,
00062                    nsISupportsWeakReference)
00063 
00064 NS_IMETHODIMP
00065 EmbedContentListener::OnStartURIOpen(nsIURI     *aURI,
00066                                      PRBool     *aAbortOpen)
00067 {
00068     nsresult rv;
00069 
00070     nsCAutoString specString;
00071     rv = aURI->GetSpec(specString);
00072 
00073     if (NS_FAILED(rv))
00074         return rv;
00075 
00076     //we stop loading here because we want to pass the
00077     //control to kio to check for mimetypes and all the other jazz
00078     bool abort = false;
00079     mOwner->startURIOpen(specString.get(), abort);
00080     *aAbortOpen = abort;
00081 
00082     return NS_OK;
00083 }
00084 
00085 NS_IMETHODIMP
00086 EmbedContentListener::DoContent(const char         *aContentType,
00087                                 PRBool             aIsContentPreferred,
00088                                 nsIRequest         *aRequest,
00089                                 nsIStreamListener **aContentHandler,
00090                                 PRBool             *aAbortProcess)
00091 {
00092     return NS_ERROR_NOT_IMPLEMENTED;
00093 }
00094 
00095 NS_IMETHODIMP
00096 EmbedContentListener::IsPreferred(const char        *aContentType,
00097                                   char             **aDesiredContentType,
00098                                   PRBool            *aCanHandleContent)
00099 {
00100     return CanHandleContent(aContentType, PR_TRUE, aDesiredContentType,
00101                             aCanHandleContent);
00102 }
00103 
00104 NS_IMETHODIMP
00105 EmbedContentListener::CanHandleContent(const char        *aContentType,
00106                                        PRBool           aIsContentPreferred,
00107                                        char             **aDesiredContentType,
00108                                        PRBool            *_retval)
00109 {
00110     *_retval = PR_FALSE;
00111     *aDesiredContentType = nsnull;
00112     qDebug("HANDLING:");
00113 
00114     if (aContentType) {
00115         nsCOMPtr<nsIWebNavigationInfo> webNavInfo(
00116            do_GetService(NS_WEBNAVIGATION_INFO_CONTRACTID));
00117         if (webNavInfo) {
00118             PRUint32 canHandle;
00119             nsresult rv =
00120                 webNavInfo->IsTypeSupported(nsDependentCString(aContentType),
00121                                             mOwner ?
00122                                               mOwner->d->navigation.get() :
00123                                               nsnull,
00124                                             &canHandle);
00125             NS_ENSURE_SUCCESS(rv, rv);
00126             *_retval = (canHandle != nsIWebNavigationInfo::UNSUPPORTED);
00127         }
00128     }
00129 
00130     qDebug("\tCan handle content %s: %d", aContentType, *_retval);
00131     return NS_OK;
00132 }
00133 
00134 NS_IMETHODIMP
00135 EmbedContentListener::GetLoadCookie(nsISupports **aLoadCookie)
00136 {
00137     return NS_ERROR_NOT_IMPLEMENTED;
00138 }
00139 
00140 NS_IMETHODIMP
00141 EmbedContentListener::SetLoadCookie(nsISupports *aLoadCookie)
00142 {
00143     return NS_ERROR_NOT_IMPLEMENTED;
00144 }
00145 
00146 NS_IMETHODIMP
00147 EmbedContentListener::GetParentContentListener(nsIURIContentListener **aParent)
00148 {
00149     return NS_ERROR_NOT_IMPLEMENTED;
00150 }
00151 
00152 NS_IMETHODIMP
00153 EmbedContentListener::SetParentContentListener(nsIURIContentListener *aParent)
00154 {
00155     return NS_ERROR_NOT_IMPLEMENTED;
00156 }
00157