gecko-dev/toolkit/components/printingui/nsPrintingPromptService.cpp

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsPrintingPromptService.h"

#include "mozilla/ClearOnShutdown.h"
#include "mozilla/RefPtr.h"
#include "mozilla/StaticPtr.h"
#include "nsIDOMWindow.h"
#include "nsIServiceManager.h"
#include "nsISupportsUtils.h"
#include "nsString.h"
#include "nsIPrintDialogService.h"
#include "nsPIDOMWindow.h"
#include "nsXULAppAPI.h"

// Printing Progress Includes
#if !defined(XP_MACOSX)
#include "nsPrintProgress.h"
#include "nsPrintProgressParams.h"

static const char* kPrintProgressDialogURL =
  "chrome://global/content/printProgress.xul";
static const char* kPrtPrvProgressDialogURL =
  "chrome://global/content/printPreviewProgress.xul";
#endif

using namespace mozilla;

NS_IMPL_ISUPPORTS(nsPrintingPromptService,
                  nsIPrintingPromptService,
                  nsIWebProgressListener)


StaticRefPtr<nsPrintingPromptService> sSingleton;

/* static */ already_AddRefed<nsPrintingPromptService>
nsPrintingPromptService::GetSingleton()
{
  MOZ_ASSERT(XRE_IsParentProcess(),
             "The content process must use nsPrintingProxy");

  if (!sSingleton) {
    sSingleton = new nsPrintingPromptService();
    sSingleton->Init();
    ClearOnShutdown(&sSingleton);
  }

  return do_AddRef(sSingleton);
}


nsPrintingPromptService::nsPrintingPromptService() = default;

nsPrintingPromptService::~nsPrintingPromptService() = default;

nsresult
nsPrintingPromptService::Init()
{
#if !defined(XP_MACOSX)
  nsresult rv;
  mWatcher = do_GetService(NS_WINDOWWATCHER_CONTRACTID, &rv);
  return rv;
#else
  return NS_OK;
#endif
}

NS_IMETHODIMP
nsPrintingPromptService::ShowPrintDialog(mozIDOMWindowProxy* parent,
                                         nsIWebBrowserPrint* webBrowserPrint,
                                         nsIPrintSettings* printSettings)
{
  NS_ENSURE_ARG(webBrowserPrint);
  NS_ENSURE_ARG(printSettings);

  nsCOMPtr<nsIPrintDialogService> dlgPrint(
    do_GetService(NS_PRINTDIALOGSERVICE_CONTRACTID));
  if (dlgPrint)
    return dlgPrint->Show(
      nsPIDOMWindowOuter::From(parent), printSettings, webBrowserPrint);

  return NS_ERROR_FAILURE;
}

NS_IMETHODIMP
nsPrintingPromptService::ShowProgress(
  mozIDOMWindowProxy* parent,
  nsIWebBrowserPrint* webBrowserPrint, // ok to be null
  nsIPrintSettings* printSettings,     // ok to be null
  nsIObserver* openDialogObserver,     // ok to be null
  bool isForPrinting,
  nsIWebProgressListener** webProgressListener,
  nsIPrintProgressParams** printProgressParams,
  bool* notifyOnOpen)
{
#if !defined(XP_MACOSX)
  NS_ENSURE_ARG(webProgressListener);
  NS_ENSURE_ARG(printProgressParams);
  NS_ENSURE_ARG(notifyOnOpen);

  *notifyOnOpen = false;
  if (mPrintProgress) {
    *webProgressListener = nullptr;
    *printProgressParams = nullptr;
    return NS_ERROR_FAILURE;
  }

  nsPrintProgress* prtProgress = new nsPrintProgress(printSettings);
  mPrintProgress = prtProgress;
  mWebProgressListener = prtProgress;

  nsCOMPtr<nsIPrintProgressParams> prtProgressParams =
    new nsPrintProgressParams();

  nsCOMPtr<mozIDOMWindowProxy> parentWindow = parent;

  if (mWatcher && !parentWindow) {
    mWatcher->GetActiveWindow(getter_AddRefs(parentWindow));
  }

  if (parentWindow) {
    mPrintProgress->OpenProgressDialog(parentWindow,
                                       isForPrinting ? kPrintProgressDialogURL
                                                     : kPrtPrvProgressDialogURL,
                                       prtProgressParams,
                                       openDialogObserver,
                                       notifyOnOpen);
  }

  prtProgressParams.forget(printProgressParams);
  NS_ADDREF(*webProgressListener = this);

  return NS_OK;
#else
  return NS_ERROR_NOT_IMPLEMENTED;
#endif
}

NS_IMETHODIMP
nsPrintingPromptService::ShowPageSetup(mozIDOMWindowProxy* parent,
                                       nsIPrintSettings* printSettings,
                                       nsIObserver* aObs)
{
  NS_ENSURE_ARG(printSettings);

  nsCOMPtr<nsIPrintDialogService> dlgPrint(
    do_GetService(NS_PRINTDIALOGSERVICE_CONTRACTID));
  if (dlgPrint)
    return dlgPrint->ShowPageSetup(nsPIDOMWindowOuter::From(parent),
                                   printSettings);

  return NS_ERROR_FAILURE;
}

NS_IMETHODIMP
nsPrintingPromptService::OnStateChange(nsIWebProgress* aWebProgress,
                                       nsIRequest* aRequest,
                                       uint32_t aStateFlags,
                                       nsresult aStatus)
{
#if !defined(XP_MACOSX)
  if ((aStateFlags & STATE_STOP) && mWebProgressListener) {
    mWebProgressListener->OnStateChange(
      aWebProgress, aRequest, aStateFlags, aStatus);
    if (mPrintProgress) {
      mPrintProgress->CloseProgressDialog(true);
    }
    mPrintProgress = nullptr;
    mWebProgressListener = nullptr;
  }
#endif
  return NS_OK;
}

NS_IMETHODIMP
nsPrintingPromptService::OnProgressChange(nsIWebProgress* aWebProgress,
                                          nsIRequest* aRequest,
                                          int32_t aCurSelfProgress,
                                          int32_t aMaxSelfProgress,
                                          int32_t aCurTotalProgress,
                                          int32_t aMaxTotalProgress)
{
#if !defined(XP_MACOSX)
  if (mWebProgressListener) {
    return mWebProgressListener->OnProgressChange(aWebProgress,
                                                  aRequest,
                                                  aCurSelfProgress,
                                                  aMaxSelfProgress,
                                                  aCurTotalProgress,
                                                  aMaxTotalProgress);
  }
#endif
  return NS_OK;
}

NS_IMETHODIMP
nsPrintingPromptService::OnLocationChange(nsIWebProgress* aWebProgress,
                                          nsIRequest* aRequest,
                                          nsIURI* location,
                                          uint32_t aFlags)
{
#if !defined(XP_MACOSX)
  if (mWebProgressListener) {
    return mWebProgressListener->OnLocationChange(
      aWebProgress, aRequest, location, aFlags);
  }
#endif
  return NS_OK;
}

NS_IMETHODIMP
nsPrintingPromptService::OnStatusChange(nsIWebProgress* aWebProgress,
                                        nsIRequest* aRequest,
                                        nsresult aStatus,
                                        const char16_t* aMessage)
{
#if !defined(XP_MACOSX)
  if (mWebProgressListener) {
    return mWebProgressListener->OnStatusChange(
      aWebProgress, aRequest, aStatus, aMessage);
  }
#endif
  return NS_OK;
}

NS_IMETHODIMP
nsPrintingPromptService::OnSecurityChange(nsIWebProgress* aWebProgress,
                                          nsIRequest* aRequest,
                                          uint32_t state)
{
#if !defined(XP_MACOSX)
  if (mWebProgressListener) {
    return mWebProgressListener->OnSecurityChange(
      aWebProgress, aRequest, state);
  }
#endif
  return NS_OK;
}