зеркало из https://github.com/mozilla/pjs.git
553 строки
17 KiB
C++
553 строки
17 KiB
C++
/* -*- Mode: c++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public
|
|
* License Version 1.1 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code is Mozilla Communicator client code.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape Communications
|
|
* Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*/
|
|
#include "nsCOMPtr.h"
|
|
#include "nsContentDLF.h"
|
|
#include "nsIComponentManager.h"
|
|
#include "nsICategoryManager.h"
|
|
#include "nsIDocumentLoader.h"
|
|
#include "nsIDocumentLoaderFactory.h"
|
|
#include "nsIDocument.h"
|
|
#include "nsIDocumentViewer.h"
|
|
#include "nsIURL.h"
|
|
#include "nsICSSStyleSheet.h"
|
|
#include "nsString.h"
|
|
#include "nsContentCID.h"
|
|
#include "prprf.h"
|
|
#include "nsNetUtil.h"
|
|
#include "nsICSSLoader.h"
|
|
|
|
#include "nsRDFCID.h"
|
|
#include "nsIRDFResource.h"
|
|
#include "nsIXULContentSink.h"
|
|
#include "nsIDocStreamLoaderFactory.h"
|
|
|
|
#define VIEW_SOURCE_HTML
|
|
|
|
// URL for the "user agent" style sheet
|
|
#define UA_CSS_URL "resource:/res/ua.css"
|
|
|
|
// Factory code for creating variations on html documents
|
|
|
|
#undef NOISY_REGISTRY
|
|
|
|
static NS_DEFINE_IID(kHTMLDocumentCID, NS_HTMLDOCUMENT_CID);
|
|
static NS_DEFINE_IID(kXMLDocumentCID, NS_XMLDOCUMENT_CID);
|
|
static NS_DEFINE_IID(kImageDocumentCID, NS_IMAGEDOCUMENT_CID);
|
|
static NS_DEFINE_IID(kXULDocumentCID, NS_XULDOCUMENT_CID);
|
|
|
|
extern nsresult NS_NewDocumentViewer(nsIDocumentViewer** aResult);
|
|
|
|
static char* gHTMLTypes[] = {
|
|
"text/html",
|
|
"text/plain",
|
|
"text/css",
|
|
"text/javascript",
|
|
"application/x-javascript",
|
|
"text/html; x-view-type=view-source",
|
|
"text/plain; x-view-type=view-source",
|
|
"text/css; x-view-type=view-source",
|
|
"text/javascript; x-view-type=view-source",
|
|
"application/x-javascript; x-view-type=view-source",
|
|
0
|
|
};
|
|
|
|
static char* gXMLTypes[] = {
|
|
"text/xml",
|
|
"application/xml",
|
|
"application/xhtml+xml",
|
|
"text/xml; x-view-type=view-source",
|
|
"application/xml; x-view-type=view-source",
|
|
"application/xhtml+xml; x-view-type=view-source",
|
|
0
|
|
};
|
|
|
|
|
|
static char* gRDFTypes[] = {
|
|
"text/rdf",
|
|
"application/vnd.mozilla.xul+xml",
|
|
"mozilla.application/cached-xul",
|
|
"application/vnd.mozilla.xul+xml; x-view-type=view-source",
|
|
"mozilla.application/cached-xul; x-view-type=view-source",
|
|
0
|
|
};
|
|
|
|
static char* gImageTypes[] = {
|
|
"image/gif",
|
|
"image/jpeg",
|
|
"image/jpg",
|
|
"image/pjpeg",
|
|
"image/png",
|
|
"image/x-png",
|
|
"image/x-art",
|
|
"image/x-jg",
|
|
0
|
|
};
|
|
|
|
nsICSSStyleSheet* nsContentDLF::gUAStyleSheet;
|
|
|
|
nsresult
|
|
NS_NewContentDocumentLoaderFactory(nsIDocumentLoaderFactory** aResult)
|
|
{
|
|
NS_PRECONDITION(aResult, "null OUT ptr");
|
|
if (!aResult) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
nsContentDLF* it = new nsContentDLF();
|
|
if (!it) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
return it->QueryInterface(NS_GET_IID(nsIDocumentLoaderFactory), (void**)aResult);
|
|
}
|
|
|
|
nsContentDLF::nsContentDLF()
|
|
{
|
|
NS_INIT_REFCNT();
|
|
}
|
|
|
|
nsContentDLF::~nsContentDLF()
|
|
{
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS2(nsContentDLF,
|
|
nsIDocumentLoaderFactory,
|
|
nsIDocStreamLoaderFactory);
|
|
|
|
NS_IMETHODIMP
|
|
nsContentDLF::CreateInstance(const char* aCommand,
|
|
nsIChannel* aChannel,
|
|
nsILoadGroup* aLoadGroup,
|
|
const char* aContentType,
|
|
nsISupports* aContainer,
|
|
nsISupports* aExtraInfo,
|
|
nsIStreamListener** aDocListener,
|
|
nsIContentViewer** aDocViewer)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
if (!gUAStyleSheet) {
|
|
// Load the UA style sheet
|
|
nsCOMPtr<nsIURI> uri;
|
|
rv = NS_NewURI(getter_AddRefs(uri), UA_CSS_URL);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsCOMPtr<nsICSSLoader> cssLoader;
|
|
NS_NewCSSLoader(getter_AddRefs(cssLoader));
|
|
if (cssLoader) {
|
|
PRBool complete;
|
|
rv = cssLoader->LoadAgentSheet(uri, gUAStyleSheet, complete, nsnull);
|
|
}
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
#ifdef DEBUG
|
|
printf("*** open of %s failed: error=%x\n", UA_CSS_URL, rv);
|
|
#endif
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// Check aContentType to see if it's a view-source type
|
|
//
|
|
// If it's a "view-source:", aContentType will be of the form
|
|
//
|
|
// <orig_type>; x-view-type=view-source
|
|
//
|
|
// where <orig_type> can be text/html, text/xml etc.
|
|
//
|
|
|
|
nsCAutoString strContentType; strContentType.Append(aContentType);
|
|
PRInt32 idx = strContentType.Find("; x-view-type=view-source", PR_TRUE, 0, -1);
|
|
if(idx != -1)
|
|
{ // Found "; x-view-type=view-source" param in content type.
|
|
|
|
// Set aCommand to view-source
|
|
|
|
aCommand = "view-source";
|
|
|
|
// Null terminate at the ";" in "text/html; x-view-type=view-source"
|
|
// The idea is to end up with the original content type i.e. without
|
|
// the x-view-type param was added to it.
|
|
|
|
strContentType.SetCharAt('\0', idx);
|
|
|
|
aContentType = strContentType.get(); //This will point to the "original" mime type
|
|
}
|
|
|
|
if(0==PL_strcmp(aCommand,"view-source")) {
|
|
#ifdef VIEW_SOURCE_HTML
|
|
NS_ENSURE_ARG(aChannel);
|
|
// It's a view-source. Reset channel's content type to the original
|
|
// type so as not to choke the parser when it asks the channel
|
|
// for the content type during the parse phase
|
|
aChannel->SetContentType(aContentType);
|
|
aContentType=gHTMLTypes[0];
|
|
#else
|
|
if(0==PL_strcmp(aContentType,gHTMLTypes[1])) {
|
|
aContentType=gHTMLTypes[0];
|
|
}
|
|
else if(0==PL_strcmp(aContentType,gHTMLTypes[2])) {
|
|
aContentType=gHTMLTypes[0];
|
|
}
|
|
else
|
|
aContentType=gXMLTypes[0];
|
|
#endif
|
|
}
|
|
|
|
// Try html
|
|
int typeIndex=0;
|
|
while(gHTMLTypes[typeIndex]) {
|
|
if (0== PL_strcmp(gHTMLTypes[typeIndex++], aContentType)) {
|
|
return CreateDocument(aCommand,
|
|
aChannel, aLoadGroup,
|
|
aContainer, kHTMLDocumentCID,
|
|
aDocListener, aDocViewer);
|
|
}
|
|
}
|
|
|
|
// Try XML
|
|
typeIndex = 0;
|
|
while(gXMLTypes[typeIndex]) {
|
|
if (0== PL_strcmp(gXMLTypes[typeIndex++], aContentType)) {
|
|
return CreateDocument(aCommand,
|
|
aChannel, aLoadGroup,
|
|
aContainer, kXMLDocumentCID,
|
|
aDocListener, aDocViewer);
|
|
}
|
|
}
|
|
|
|
// Try RDF
|
|
typeIndex = 0;
|
|
while (gRDFTypes[typeIndex]) {
|
|
if (0 == PL_strcmp(gRDFTypes[typeIndex++], aContentType)) {
|
|
return CreateRDFDocument(aCommand,
|
|
aChannel, aLoadGroup,
|
|
aContentType, aContainer,
|
|
aExtraInfo, aDocListener, aDocViewer);
|
|
}
|
|
}
|
|
|
|
// Try image types
|
|
typeIndex = 0;
|
|
while(gImageTypes[typeIndex]) {
|
|
if (0== PL_strcmp(gImageTypes[typeIndex++], aContentType)) {
|
|
return CreateDocument(aCommand,
|
|
aChannel, aLoadGroup,
|
|
aContainer, kImageDocumentCID,
|
|
aDocListener, aDocViewer);
|
|
}
|
|
}
|
|
|
|
// If we get here, then we weren't able to create anything. Sorry!
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsContentDLF::CreateInstanceForDocument(nsISupports* aContainer,
|
|
nsIDocument* aDocument,
|
|
const char *aCommand,
|
|
nsIContentViewer** aDocViewerResult)
|
|
{
|
|
nsresult rv = NS_ERROR_FAILURE;
|
|
|
|
do {
|
|
nsCOMPtr<nsIDocumentViewer> docv;
|
|
rv = NS_NewDocumentViewer(getter_AddRefs(docv));
|
|
if (NS_FAILED(rv))
|
|
break;
|
|
|
|
docv->SetUAStyleSheet(NS_STATIC_CAST(nsIStyleSheet*, gUAStyleSheet));
|
|
|
|
// Bind the document to the Content Viewer
|
|
nsIContentViewer* cv = NS_STATIC_CAST(nsIContentViewer*, docv.get());
|
|
rv = cv->LoadStart(aDocument);
|
|
NS_ADDREF(*aDocViewerResult = cv);
|
|
} while (PR_FALSE);
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsContentDLF::CreateDocument(const char* aCommand,
|
|
nsIChannel* aChannel,
|
|
nsILoadGroup* aLoadGroup,
|
|
nsISupports* aContainer,
|
|
const nsCID& aDocumentCID,
|
|
nsIStreamListener** aDocListener,
|
|
nsIContentViewer** aDocViewer)
|
|
{
|
|
nsresult rv = NS_ERROR_FAILURE;
|
|
|
|
nsCOMPtr<nsIURI> aURL;
|
|
rv = aChannel->GetURI(getter_AddRefs(aURL));
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
#ifdef NOISY_CREATE_DOC
|
|
if (nsnull != aURL) {
|
|
nsAutoString tmp;
|
|
aURL->ToString(tmp);
|
|
fputs(tmp, stdout);
|
|
printf(": creating document\n");
|
|
}
|
|
#endif
|
|
|
|
nsCOMPtr<nsIDocument> doc;
|
|
nsCOMPtr<nsIDocumentViewer> docv;
|
|
do {
|
|
// Create the document
|
|
rv = nsComponentManager::CreateInstance(aDocumentCID, nsnull,
|
|
NS_GET_IID(nsIDocument),
|
|
getter_AddRefs(doc));
|
|
if (NS_FAILED(rv))
|
|
break;
|
|
|
|
// Create the document viewer XXX: could reuse document viewer here!
|
|
rv = NS_NewDocumentViewer(getter_AddRefs(docv));
|
|
if (NS_FAILED(rv))
|
|
break;
|
|
docv->SetUAStyleSheet(gUAStyleSheet);
|
|
|
|
// Initialize the document to begin loading the data. An
|
|
// nsIStreamListener connected to the parser is returned in
|
|
// aDocListener.
|
|
rv = doc->StartDocumentLoad(aCommand, aChannel, aLoadGroup, aContainer, aDocListener, PR_TRUE);
|
|
if (NS_FAILED(rv))
|
|
break;
|
|
|
|
// Bind the document to the Content Viewer
|
|
rv = docv->LoadStart(doc);
|
|
*aDocViewer = docv;
|
|
NS_IF_ADDREF(*aDocViewer);
|
|
} while (PR_FALSE);
|
|
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsContentDLF::CreateInstance(nsIInputStream& aInputStream,
|
|
const char* aContentType,
|
|
const char* aCommand,
|
|
nsISupports* aContainer,
|
|
nsISupports* aExtraInfo,
|
|
nsIContentViewer** aDocViewer)
|
|
|
|
{
|
|
nsresult status = NS_ERROR_FAILURE;
|
|
|
|
// Try RDF
|
|
int typeIndex = 0;
|
|
while (gRDFTypes[typeIndex]) {
|
|
if (0 == PL_strcmp(gRDFTypes[typeIndex++], aContentType)) {
|
|
return CreateXULDocumentFromStream(aInputStream,
|
|
aCommand,
|
|
aContainer,
|
|
aExtraInfo,
|
|
aDocViewer);
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
// ...common work for |CreateRDFDocument| and |CreateXULDocumentFromStream|
|
|
nsresult
|
|
nsContentDLF::CreateRDFDocument(nsISupports* aExtraInfo,
|
|
nsCOMPtr<nsIDocument>* doc,
|
|
nsCOMPtr<nsIDocumentViewer>* docv)
|
|
{
|
|
nsresult rv = NS_ERROR_FAILURE;
|
|
|
|
// Create the XUL document
|
|
rv = nsComponentManager::CreateInstance(kXULDocumentCID, nsnull,
|
|
NS_GET_IID(nsIDocument),
|
|
getter_AddRefs(*doc));
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
// Create the image content viewer...
|
|
rv = NS_NewDocumentViewer(getter_AddRefs(*docv));
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
// Load the UA style sheet if we haven't already done that
|
|
(*docv)->SetUAStyleSheet(gUAStyleSheet);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
// ...note, this RDF document _may_ be XUL :-)
|
|
nsresult
|
|
nsContentDLF::CreateRDFDocument(const char* aCommand,
|
|
nsIChannel* aChannel,
|
|
nsILoadGroup* aLoadGroup,
|
|
const char* aContentType,
|
|
nsISupports* aContainer,
|
|
nsISupports* aExtraInfo,
|
|
nsIStreamListener** aDocListener,
|
|
nsIContentViewer** aDocViewer)
|
|
{
|
|
nsCOMPtr<nsIDocument> doc;
|
|
nsCOMPtr<nsIDocumentViewer> docv;
|
|
nsresult rv = CreateRDFDocument(aExtraInfo, address_of(doc), address_of(docv));
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
nsCOMPtr<nsIURI> aURL;
|
|
rv = aChannel->GetURI(getter_AddRefs(aURL));
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
/*
|
|
* Initialize the document to begin loading the data...
|
|
*
|
|
* An nsIStreamListener connected to the parser is returned in
|
|
* aDocListener.
|
|
*/
|
|
rv = doc->StartDocumentLoad(aCommand, aChannel, aLoadGroup, aContainer, aDocListener, PR_TRUE);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
/*
|
|
* Bind the document to the Content Viewer...
|
|
*/
|
|
rv = docv->LoadStart(doc);
|
|
*aDocViewer = docv;
|
|
NS_IF_ADDREF(*aDocViewer);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsContentDLF::CreateXULDocumentFromStream(nsIInputStream& aXULStream,
|
|
const char* aCommand,
|
|
nsISupports* aContainer,
|
|
nsISupports* aExtraInfo,
|
|
nsIContentViewer** aDocViewer)
|
|
{
|
|
nsresult status = NS_OK;
|
|
|
|
#if 0 // XXX dead code; remove
|
|
do
|
|
{
|
|
nsCOMPtr<nsIDocument> doc;
|
|
nsCOMPtr<nsIDocumentViewer> docv;
|
|
if ( NS_FAILED(status = CreateRDFDocument(aExtraInfo, address_of(doc), address_of(docv))) )
|
|
break;
|
|
|
|
if ( NS_FAILED(status = docv->LoadStart(doc)) )
|
|
break;
|
|
|
|
*aDocViewer = docv;
|
|
NS_IF_ADDREF(*aDocViewer);
|
|
|
|
nsCOMPtr<nsIStreamLoadableDocument> loader = do_QueryInterface(doc, &status);
|
|
if ( NS_FAILED(status) )
|
|
break;
|
|
|
|
status = loader->LoadFromStream(aXULStream, aContainer, aCommand);
|
|
}
|
|
while (0);
|
|
#endif
|
|
|
|
return status;
|
|
}
|
|
|
|
static NS_DEFINE_IID(kDocumentFactoryImplCID, NS_CONTENT_DOCUMENT_LOADER_FACTORY_CID);
|
|
|
|
static nsresult
|
|
RegisterTypes(nsIComponentManager* aCompMgr,
|
|
nsICategoryManager* aCatMgr,
|
|
const char* aCommand,
|
|
nsIFile* aPath,
|
|
const char *aLocation,
|
|
const char *aType,
|
|
char** aTypes)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
while (*aTypes) {
|
|
char contractid[500];
|
|
char* contentType = *aTypes++;
|
|
PR_snprintf(contractid, sizeof(contractid),
|
|
NS_DOCUMENT_LOADER_FACTORY_CONTRACTID_PREFIX "%s;1?type=%s",
|
|
aCommand, contentType);
|
|
#ifdef NOISY_REGISTRY
|
|
printf("Register %s => %s\n", contractid, aPath);
|
|
#endif
|
|
rv = aCompMgr->RegisterComponentWithType(kDocumentFactoryImplCID, "Layout",
|
|
contractid, aPath, aLocation,
|
|
PR_TRUE, PR_TRUE, aType);
|
|
if (NS_FAILED(rv)) break;
|
|
|
|
// add the MIME types layotu can handle to the handlers category.
|
|
// this allows users of layout's viewers (the docshell for example)
|
|
// to query the types of viewers layout can create.
|
|
nsXPIDLCString previous;
|
|
rv = aCatMgr->AddCategoryEntry("Gecko-Content-Viewers", contentType,
|
|
contractid,
|
|
PR_TRUE, PR_TRUE, getter_Copies(previous));
|
|
if (NS_FAILED(rv)) break;
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsContentDLF::RegisterDocumentFactories(nsIComponentManager* aCompMgr,
|
|
nsIFile* aPath,
|
|
const char *aLocation,
|
|
const char *aType,
|
|
const nsModuleComponentInfo* aInfo)
|
|
{
|
|
nsresult rv;
|
|
|
|
nsCOMPtr<nsICategoryManager> catmgr(do_GetService(NS_CATEGORYMANAGER_CONTRACTID, &rv));
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
do {
|
|
rv = RegisterTypes(aCompMgr, catmgr, "view", aPath, aLocation, aType, gHTMLTypes);
|
|
if (NS_FAILED(rv))
|
|
break;
|
|
rv = RegisterTypes(aCompMgr, catmgr, "view-source", aPath, aLocation, aType, gHTMLTypes);
|
|
if (NS_FAILED(rv))
|
|
break;
|
|
rv = RegisterTypes(aCompMgr, catmgr, "view", aPath, aLocation, aType, gXMLTypes);
|
|
if (NS_FAILED(rv))
|
|
break;
|
|
rv = RegisterTypes(aCompMgr, catmgr, "view-source", aPath, aLocation, aType, gXMLTypes);
|
|
if (NS_FAILED(rv))
|
|
break;
|
|
rv = RegisterTypes(aCompMgr, catmgr, "view", aPath, aLocation, aType, gImageTypes);
|
|
if (NS_FAILED(rv))
|
|
break;
|
|
rv = RegisterTypes(aCompMgr, catmgr, "view", aPath, aLocation, aType, gRDFTypes);
|
|
if (NS_FAILED(rv))
|
|
break;
|
|
rv = RegisterTypes(aCompMgr, catmgr, "view-source", aPath, aLocation, aType, gRDFTypes);
|
|
if (NS_FAILED(rv))
|
|
break;
|
|
} while (PR_FALSE);
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsContentDLF::UnregisterDocumentFactories(nsIComponentManager* aCompMgr,
|
|
nsIFile* aPath,
|
|
const char* aRegistryLocation,
|
|
const nsModuleComponentInfo* aInfo)
|
|
{
|
|
// XXXwaterson seems like this leaves the registry pretty dirty.
|
|
return aCompMgr->UnregisterComponentSpec(kDocumentFactoryImplCID, aPath);
|
|
}
|