pjs/minimo/components/ssr/nsSSRSupport.cpp

274 строки
7.7 KiB
C++
Executable File

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* 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 SSR
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2005
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Doug Turner <dougt@meer.net>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsXPCOM.h"
#include "nsCOMPtr.h"
#include "nsIServiceManager.h"
#include "nsIGenericFactory.h"
#include "nsIObserver.h"
#include "nsIPrefService.h"
#include "nsIPrefBranch2.h"
#include "nsICategoryManager.h"
#include "nsIObserverService.h"
#include "string.h"
#include "nsNetUtil.h"
#include "nsIStyleSheetService.h"
// TODO auto reload SSR in C.
class nsSSRSupport : public nsIObserver
{
public:
nsSSRSupport();
virtual ~nsSSRSupport();
NS_DECL_ISUPPORTS
NS_DECL_NSIOBSERVER
nsresult SetSSREnabled(PRBool aSsrEnabled);
nsresult SetSiteSSREnabled(PRBool aSiteSSREnabled);
nsCOMPtr<nsIStyleSheetService> m_sss;
PRBool mUsingSSR;
};
nsSSRSupport::nsSSRSupport()
: mUsingSSR(PR_FALSE)
{
m_sss = do_GetService("@mozilla.org/content/style-sheet-service;1");
}
nsSSRSupport::~nsSSRSupport()
{
}
NS_IMPL_ISUPPORTS1(nsSSRSupport, nsIObserver)
nsresult
nsSSRSupport::SetSSREnabled(PRBool aSsrEnabled)
{
if (!m_sss)
return NS_ERROR_NOT_INITIALIZED;
nsCOMPtr<nsIURI> uri;
nsresult rv = NS_NewURI(getter_AddRefs(uri), NS_LITERAL_CSTRING("resource://gre/res/smallScreen.css"));
if (NS_FAILED(rv))
return rv;
if (aSsrEnabled)
return m_sss->LoadAndRegisterSheet(uri, nsIStyleSheetService::AGENT_SHEET);
return m_sss->UnregisterSheet(uri, nsIStyleSheetService::AGENT_SHEET);
}
nsresult
nsSSRSupport::SetSiteSSREnabled(PRBool aSiteSSREnabled)
{
if (!m_sss)
return NS_ERROR_NOT_INITIALIZED;
nsCOMPtr<nsIURI> uri;
nsresult rv = NS_NewURI(getter_AddRefs(uri), NS_LITERAL_CSTRING("resource://gre/res/sites.css"));
if (NS_FAILED(rv))
return rv;
if (aSiteSSREnabled)
return m_sss->LoadAndRegisterSheet(uri, nsIStyleSheetService::AGENT_SHEET);
return m_sss->UnregisterSheet(uri, nsIStyleSheetService::AGENT_SHEET);
}
NS_IMETHODIMP
nsSSRSupport::Observe(nsISupports *aSubject, const char *aTopic, const PRUnichar *aData)
{
nsresult rv;
if (!strcmp(aTopic,"app-startup"))
{
nsCOMPtr<nsIPrefBranch2> prefBranch = do_GetService(NS_PREFSERVICE_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
prefBranch->AddObserver("ssr.", this, PR_FALSE);
prefBranch->GetBoolPref("ssr.enabled", &mUsingSSR);
nsCOMPtr<nsIObserverService> observerService = do_GetService("@mozilla.org/observer-service;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
observerService->AddObserver(this, "loading-domain", PR_FALSE);
return NS_OK;
}
if (!strcmp(aTopic, NS_PREFBRANCH_PREFCHANGE_TOPIC_ID))
{
nsCOMPtr<nsIPrefBranch> prefBranch = do_QueryInterface(aSubject);
nsXPIDLCString cstr;
const char* pref = NS_ConvertUTF16toUTF8(aData).get();
if (!strcmp(pref, "ssr.enabled"))
{
prefBranch->GetBoolPref(pref, &mUsingSSR);
return NS_OK;
}
}
if (!strcmp(aTopic, "loading-domain"))
{
if (!mUsingSSR)
{
SetSSREnabled(PR_FALSE);
SetSiteSSREnabled(PR_FALSE);
return NS_OK;
}
const char* domain = NS_ConvertUTF16toUTF8(aData).get();
if (!strcmp(domain, "maps.google.com") ||
!strcmp(domain, "slashdot.org") ||
!strcmp(domain, "www.digg.com") ||
!strcmp(domain, "weblogs.mozillazine.org") ||
!strcmp(domain, "forums.mozillazine.org") )
{
SetSSREnabled(PR_FALSE);
SetSiteSSREnabled(PR_TRUE);
}
else
{
SetSSREnabled(PR_TRUE);
SetSiteSSREnabled(PR_FALSE);
}
return NS_OK;
}
return NS_OK;
}
//------------------------------------------------------------------------------
// XPCOM REGISTRATION BELOW
//------------------------------------------------------------------------------
#define SSRSupport_CID \
{ 0x3dc8b3d0, 0xeaff, 0x4904, \
{0x8e, 0x80, 0x99, 0xf8, 0x26, 0x62, 0x96, 0x3a} }
#define SSRSupport_ContractID "@mozilla.org/ssr;1"
NS_GENERIC_FACTORY_CONSTRUCTOR(nsSSRSupport)
static NS_METHOD SSRRegistration(nsIComponentManager *aCompMgr,
nsIFile *aPath,
const char *registryLocation,
const char *componentType,
const nsModuleComponentInfo *info)
{
nsresult rv;
nsCOMPtr<nsIServiceManager> servman = do_QueryInterface((nsISupports*)aCompMgr, &rv);
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsICategoryManager> catman;
servman->GetServiceByContractID(NS_CATEGORYMANAGER_CONTRACTID,
NS_GET_IID(nsICategoryManager),
getter_AddRefs(catman));
if (NS_FAILED(rv))
return rv;
char* previous = nsnull;
rv = catman->AddCategoryEntry("app-startup",
"SSR",
SSRSupport_ContractID,
PR_TRUE,
PR_TRUE,
&previous);
if (previous)
nsMemory::Free(previous);
return rv;
}
static NS_METHOD SSRUnregistration(nsIComponentManager *aCompMgr,
nsIFile *aPath,
const char *registryLocation,
const nsModuleComponentInfo *info)
{
nsresult rv;
nsCOMPtr<nsIServiceManager> servman = do_QueryInterface((nsISupports*)aCompMgr, &rv);
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsICategoryManager> catman;
servman->GetServiceByContractID(NS_CATEGORYMANAGER_CONTRACTID,
NS_GET_IID(nsICategoryManager),
getter_AddRefs(catman));
if (NS_FAILED(rv))
return rv;
rv = catman->DeleteCategoryEntry("app-startup",
"SSR",
PR_TRUE);
return rv;
}
static const nsModuleComponentInfo components[] =
{
{ "SoftKeyBoardService",
SSRSupport_CID,
SSRSupport_ContractID,
nsSSRSupportConstructor,
SSRRegistration,
SSRUnregistration
}
};
NS_IMPL_NSGETMODULE(SSRModule, components)