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+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the QtWebEngine module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef PRINT_VIEW_MANAGER_BASE_QT_H
+#define PRINT_VIEW_MANAGER_BASE_QT_H
+
+#include "base/memory/ref_counted.h"
+#include "base/prefs/pref_member.h"
+#include "base/strings/string16.h"
+#include "components/printing/browser/print_manager.h"
+#include "content/public/browser/notification_observer.h"
+#include "content/public/browser/notification_registrar.h"
+#include "printing/printed_pages_source.h"
+
+struct PrintHostMsg_DidPrintPage_Params;
+
+namespace content {
+class RenderViewHost;
+}
+
+namespace printing {
+class JobEventDetails;
+class MetafilePlayer;
+class PrintJob;
+class PrintJobWorkerOwner;
+class PrintQueriesQueue;
+}
+
+namespace QtWebEngineCore {
+class PrintViewManagerBaseQt
+ : public content::NotificationObserver
+ , public printing::PrintManager
+ , public printing::PrintedPagesSource
+{
+public:
+ ~PrintViewManagerBaseQt() override;
+
+ // PrintedPagesSource implementation.
+ base::string16 RenderSourceName() override;
+
+protected:
+ explicit PrintViewManagerBaseQt(content::WebContents*);
+
+ // content::WebContentsObserver implementation.
+ // Cancels the print job.
+ void NavigationStopped() override;
+
+ // Terminates or cancels the print job if one was pending.
+ void RenderProcessGone(base::TerminationStatus status) override;
+
+ // content::WebContentsObserver implementation.
+ bool OnMessageReceived(const IPC::Message& message) override;
+
+ // IPC Message handlers.
+ void OnDidPrintPage(const PrintHostMsg_DidPrintPage_Params& params);
+ void OnShowInvalidPrinterSettingsError();
+
+ // Processes a NOTIFY_PRINT_JOB_EVENT notification.
+ void OnNotifyPrintJobEvent(const printing::JobEventDetails& event_details);
+
+ int number_pages_; // Number of pages to print in the print job.
+ int cookie_;
+ scoped_ptr<base::DictionaryValue> m_printSettings;
+
+ // content::NotificationObserver implementation.
+ void Observe(int,
+ const content::NotificationSource&,
+ const content::NotificationDetails&) override;
+ void StopWorker(int document_cookie);
+
+ // In the case of Scripted Printing, where the renderer is controlling the
+ // control flow, print_job_ is initialized whenever possible. No-op is
+ // print_job_ is initialized.
+ bool OpportunisticallyCreatePrintJob(int cookie);
+
+ // Requests the RenderView to render all the missing pages for the print job.
+ // No-op if no print job is pending. Returns true if at least one page has
+ // been requested to the renderer.
+ bool RenderAllMissingPagesNow();
+
+ // Quits the current message loop if these conditions hold true: a document is
+ // loaded and is complete and waiting_for_pages_to_be_rendered_ is true. This
+ // function is called in DidPrintPage() or on ALL_PAGES_REQUESTED
+ // notification. The inner message loop is created was created by
+ // RenderAllMissingPagesNow().
+ void ShouldQuitFromInnerMessageLoop();
+
+ bool RunInnerMessageLoop();
+
+ void TerminatePrintJob(bool cancel);
+ void PrintingDone(bool success);
+ void DisconnectFromCurrentPrintJob();
+
+ bool CreateNewPrintJob(printing::PrintJobWorkerOwner* job);
+ void ReleasePrintJob();
+ void ReleasePrinterQuery();
+
+private:
+ content::NotificationRegistrar m_registrar;
+ scoped_refptr<printing::PrintJob> m_printJob;
+
+ bool m_isInsideInnerMessageLoop;
+ bool m_isExpectingFirstPage;
+ bool m_didPrintingSucceed;
+ scoped_refptr<printing::PrintQueriesQueue> m_printerQueriesQueue;
+ // content::WebContentsObserver implementation.
+ void DidStartLoading() override;
+ DISALLOW_COPY_AND_ASSIGN(PrintViewManagerBaseQt);
+};
+
+} // namespace QtWebEngineCore
+#endif // PRINT_VIEW_MANAGER_BASE_QT_H
+