pjs/embedding/tests/mfcembed/components/PrintingPromptService.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** 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 mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2001
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* 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 ***** */
/* PrintingPromptService is intended to override the default Mozilla PrintingPromptService,
giving nsIPrompt implementations of our own design, rather than using
Mozilla's. Do this by building this into a component and registering the
factory with the same CID/ContractID as Mozilla's (see MfcEmbed.cpp).
*/
#include "stdafx.h"
#include "Dialogs.h"
#include "PrintingPromptService.h"
#include "nsCOMPtr.h"
#include "nsMemory.h"
#include "nsString.h"
#include "nsReadableUtils.h"
#include "nsIDOMWindow.h"
#include "nsIEmbeddingSiteWindow.h"
#include "nsIFactory.h"
#include "nsIPrintingPromptService.h"
#include "nsIServiceManager.h"
#include "nsIWebBrowserChrome.h"
#include "nsIWindowWatcher.h"
#include "nsIWebProgressListener.h"
#include "nsPrintProgressParams.h"
#include "nsPrintDialogUtil.h"
#include "PrintProgressDialog.h"
// For PLEvent
#include "nsIEventQueueService.h"
#include "plevent.h"
static HINSTANCE gInstance;
//*****************************************************************************
// ResourceState
//*****************************************************************************
class ResourceState {
public:
ResourceState() {
mPreviousInstance = ::AfxGetResourceHandle();
::AfxSetResourceHandle(gInstance);
}
~ResourceState() {
::AfxSetResourceHandle(mPreviousInstance);
}
private:
HINSTANCE mPreviousInstance;
};
//*****************************************************************************
// CPrintingPromptService
//*****************************************************************************
class CPrintingPromptService: public nsIPrintingPromptService,
public nsIWebProgressListener {
public:
CPrintingPromptService();
virtual ~CPrintingPromptService();
NS_DECL_ISUPPORTS
NS_DECL_NSIPRINTINGPROMPTSERVICE
NS_DECL_NSIWEBPROGRESSLISTENER
void NotifyObserver();
private:
PRBool FirePauseEvent();
CWnd *CWndForDOMWindow(nsIDOMWindow *aWindow);
nsCOMPtr<nsIWindowWatcher> mWWatch;
nsCOMPtr<nsIWebProgressListener> mWebProgressListener;
nsCOMPtr<nsIObserver> mObserver;
CPrintProgressDialog* m_PPDlg;
};
// Define PL Callback Functions
static void PR_CALLBACK HandlePLEvent(PLEvent* aEvent);
static void PR_CALLBACK DestroyPLEvent(PLEvent* aEvent);
//*****************************************************************************
NS_IMPL_ISUPPORTS2(CPrintingPromptService, nsIPrintingPromptService, nsIWebProgressListener)
CPrintingPromptService::CPrintingPromptService() :
mWWatch(do_GetService(NS_WINDOWWATCHER_CONTRACTID)),
m_PPDlg(NULL)
{
}
CPrintingPromptService::~CPrintingPromptService() {
}
CWnd *
CPrintingPromptService::CWndForDOMWindow(nsIDOMWindow *aWindow)
{
nsCOMPtr<nsIWebBrowserChrome> chrome;
CWnd *val = 0;
if (mWWatch) {
nsCOMPtr<nsIDOMWindow> fosterParent;
if (!aWindow) { // it will be a dependent window. try to find a foster parent.
mWWatch->GetActiveWindow(getter_AddRefs(fosterParent));
aWindow = fosterParent;
}
mWWatch->GetChromeForWindow(aWindow, getter_AddRefs(chrome));
}
if (chrome) {
nsCOMPtr<nsIEmbeddingSiteWindow> site(do_QueryInterface(chrome));
if (site) {
HWND w;
site->GetSiteWindow(reinterpret_cast<void **>(&w));
val = CWnd::FromHandle(w);
}
}
return val;
}
///////////////////////////////////////////////////////////////////////////////
// nsIPrintingPrompt
//-----------------------------------------------------------
NS_IMETHODIMP
CPrintingPromptService::ShowPrintDialog(nsIDOMWindow *parent, nsIWebBrowserPrint *webBrowserPrint, nsIPrintSettings *printSettings)
{
//NS_ENSURE_ARG(parent);
CWnd* wnd = CWndForDOMWindow(parent);
NS_ASSERTION(wnd && wnd->m_hWnd, "Couldn't get native window for PRint Dialog!");
if (wnd && wnd->m_hWnd) {
return NativeShowPrintDialog(wnd->m_hWnd, webBrowserPrint, printSettings);
} else {
return NS_ERROR_FAILURE;
}
}
//-----------------------------------------------------------
PRBool
CPrintingPromptService::FirePauseEvent()
{
static NS_DEFINE_CID(kEventQueueServiceCID, NS_EVENTQUEUESERVICE_CID);
nsCOMPtr<nsIEventQueueService> event_service = do_GetService(kEventQueueServiceCID);
if (!event_service)
{
NS_WARNING("Failed to get event queue service");
return PR_FALSE;
}
nsCOMPtr<nsIEventQueue> event_queue;
event_service->GetThreadEventQueue(NS_CURRENT_THREAD,
getter_AddRefs(event_queue));
if (!event_queue)
{
NS_WARNING("Failed to get event queue from service");
return PR_FALSE;
}
PLEvent *event = new PLEvent;
if (!event)
{
NS_WARNING("Out of memory?");
return PR_FALSE;
}
PL_InitEvent(event, this, (PLHandleEventProc)::HandlePLEvent, (PLDestroyEventProc)::DestroyPLEvent);
// The event owns the content pointer now.
NS_ADDREF_THIS();
event_queue->PostEvent(event);
return PR_TRUE;
}
/* void showProgress (in nsIDOMWindow parent, in nsIWebBrowserPrint webBrowserPrint, in nsIPrintSettings printSettings, in nsIObserver openDialogObserver, in boolean isForPrinting, out nsIWebProgressListener webProgressListener, out nsIPrintProgressParams printProgressParams, out boolean notifyOnOpen); */
NS_IMETHODIMP
CPrintingPromptService::ShowProgress(nsIDOMWindow* parent,
nsIWebBrowserPrint* webBrowserPrint, // ok to be null
nsIPrintSettings* printSettings, // ok to be null
nsIObserver* openDialogObserver, // ok to be null
PRBool isForPrinting,
nsIWebProgressListener** webProgressListener,
nsIPrintProgressParams** printProgressParams,
PRBool* notifyOnOpen)
{
NS_ENSURE_ARG(webProgressListener);
NS_ENSURE_ARG(printProgressParams);
NS_ENSURE_ARG(notifyOnOpen);
ResourceState setState;
nsresult rv;
nsPrintProgressParams* prtProgressParams = new nsPrintProgressParams();
rv = prtProgressParams->QueryInterface(NS_GET_IID(nsIPrintProgressParams), (void**)printProgressParams);
NS_ENSURE_SUCCESS(rv, rv);
mObserver = openDialogObserver;
*notifyOnOpen = PR_FALSE;
if (printProgressParams)
{
CWnd *wnd = CWndForDOMWindow(parent);
m_PPDlg = new CPrintProgressDialog(wnd, isForPrinting, *printProgressParams, webBrowserPrint, printSettings);
m_PPDlg->Create(IDD_PRINT_PROGRESS_DIALOG);
m_PPDlg->ShowWindow(SW_SHOW);
m_PPDlg->UpdateWindow();
*notifyOnOpen = FirePauseEvent();
}
*webProgressListener = NS_STATIC_CAST(nsIWebProgressListener*, this);
NS_ADDREF(*webProgressListener);
return rv;
}
/* void showPageSetup (in nsIDOMWindow parent, in nsIPrintSettings printSettings); */
NS_IMETHODIMP
CPrintingPromptService::ShowPageSetup(nsIDOMWindow *parent, nsIPrintSettings *printSettings, nsIObserver *aObs)
{
NS_ENSURE_ARG(printSettings);
return NS_ERROR_NOT_IMPLEMENTED;
}
/* void showPrinterProperties (in nsIDOMWindow parent, in wstring printerName, in nsIPrintSettings printSettings); */
NS_IMETHODIMP
CPrintingPromptService::ShowPrinterProperties(nsIDOMWindow *parent, const PRUnichar *printerName, nsIPrintSettings *printSettings)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
//------------------------------------------------------------------------
void CPrintingPromptService::NotifyObserver()
{
if (mObserver) {
mObserver->Observe(nsnull, nsnull, nsnull);
}
}
//------------------------------------------------------------------------
void PR_CALLBACK HandlePLEvent(PLEvent* aEvent)
{
CPrintingPromptService *printingPromptService = (CPrintingPromptService*)PL_GetEventOwner(aEvent);
NS_ASSERTION(printingPromptService, "The event owner is null.");
if (printingPromptService) {
printingPromptService->NotifyObserver();
}
}
//------------------------------------------------------------------------
void PR_CALLBACK DestroyPLEvent(PLEvent* aEvent)
{
CPrintingPromptService *printingPromptService = (CPrintingPromptService*)PL_GetEventOwner(aEvent);
NS_IF_RELEASE(printingPromptService);
delete aEvent;
}
//////////////////////////////////////////////////////////////////////
// nsIWebProgressListener
//////////////////////////////////////////////////////////////////////
/* void onStateChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in long aStateFlags, in nsresult aStatus); */
NS_IMETHODIMP
CPrintingPromptService::OnStateChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, PRUint32 aStateFlags, nsresult aStatus)
{
if (aStateFlags & STATE_START)
{
if (m_PPDlg)
{
m_PPDlg->OnStartPrinting();
}
}
if (aStateFlags & STATE_STOP)
{
if (m_PPDlg)
{
m_PPDlg->OnProgressPrinting(100, 100);
m_PPDlg->DestroyWindow();
m_PPDlg = NULL;
}
}
return NS_OK;
}
/* void onProgressChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in long aCurSelfProgress, in long aMaxSelfProgress, in long aCurTotalProgress, in long aMaxTotalProgress); */
NS_IMETHODIMP
CPrintingPromptService::OnProgressChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, PRInt32 aCurSelfProgress, PRInt32 aMaxSelfProgress, PRInt32 aCurTotalProgress, PRInt32 aMaxTotalProgress)
{
if (m_PPDlg)
{
m_PPDlg->OnProgressPrinting(aCurTotalProgress, aMaxTotalProgress);
}
return NS_OK;
}
/* void onLocationChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in nsIURI location); */
NS_IMETHODIMP
CPrintingPromptService::OnLocationChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, nsIURI *location)
{
return NS_OK;
}
/* void onStatusChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in nsresult aStatus, in wstring aMessage); */
NS_IMETHODIMP
CPrintingPromptService::OnStatusChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, nsresult aStatus, const PRUnichar *aMessage)
{
return NS_OK;
}
/* void onSecurityChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in unsigned long state); */
NS_IMETHODIMP
CPrintingPromptService::OnSecurityChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, PRUint32 state)
{
return NS_OK;
}
//*****************************************************************************
// CPrintingPromptServiceFactory
//*****************************************************************************
class CPrintingPromptServiceFactory : public nsIFactory {
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIFACTORY
CPrintingPromptServiceFactory();
virtual ~CPrintingPromptServiceFactory();
};
//*****************************************************************************
NS_IMPL_ISUPPORTS1(CPrintingPromptServiceFactory, nsIFactory)
CPrintingPromptServiceFactory::CPrintingPromptServiceFactory() {
}
CPrintingPromptServiceFactory::~CPrintingPromptServiceFactory() {
}
NS_IMETHODIMP CPrintingPromptServiceFactory::CreateInstance(nsISupports *aOuter, const nsIID & aIID, void **aResult)
{
NS_ENSURE_ARG_POINTER(aResult);
*aResult = NULL;
CPrintingPromptService *inst = new CPrintingPromptService;
if (!inst)
return NS_ERROR_OUT_OF_MEMORY;
nsresult rv = inst->QueryInterface(aIID, aResult);
if (rv != NS_OK) {
// We didn't get the right interface, so clean up
delete inst;
}
return rv;
}
NS_IMETHODIMP CPrintingPromptServiceFactory::LockFactory(PRBool lock)
{
return NS_OK;
}
//*****************************************************************************
void InitPrintingPromptService(HINSTANCE instance) {
gInstance = instance;
}
nsresult NS_NewPrintingPromptServiceFactory(nsIFactory** aFactory)
{
NS_ENSURE_ARG_POINTER(aFactory);
*aFactory = nsnull;
CPrintingPromptServiceFactory *result = new CPrintingPromptServiceFactory;
if (!result)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(result);
*aFactory = result;
return NS_OK;
}