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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://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.LGPL3 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-3.0.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 (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.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.Chromium file.
#ifndef PRINT_VIEW_MANAGER_BASE_QT_H
#define PRINT_VIEW_MANAGER_BASE_QT_H
#include "base/memory/ref_counted_memory.h"
#include "base/strings/string16.h"
#include "components/prefs/pref_member.h"
#include "components/printing/browser/print_manager.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
namespace base {
class RefCountedBytes;
}
namespace content {
class RenderFrameHost;
class RenderViewHost;
}
namespace printing {
class JobEventDetails;
class MetafilePlayer;
class PrintJob;
class PrintJobWorkerOwner;
class PrintQueriesQueue;
class PrintedDocument;
class PrinterQuery;
}
namespace QtWebEngineCore {
class PrintViewManagerBaseQt : public content::NotificationObserver
, public printing::PrintManager
{
public:
~PrintViewManagerBaseQt() override;
// Whether printing is enabled or not.
void UpdatePrintingEnabled();
virtual base::string16 RenderSourceName();
protected:
explicit PrintViewManagerBaseQt(content::WebContents*);
void SetPrintingRFH(content::RenderFrameHost* rfh);
// content::WebContentsObserver implementation.
// Cancels the print job.
void NavigationStopped() override;
// content::WebContentsObserver implementation.
void RenderFrameDeleted(content::RenderFrameHost* render_frame_host) override;
bool OnMessageReceived(const IPC::Message& message,
content::RenderFrameHost* render_frame_host) override;
// printing::PrintManager implementation:
void OnDidPrintDocument(content::RenderFrameHost *render_frame_host,
const printing::mojom::DidPrintDocumentParams ¶ms,
std::unique_ptr<DelayedFrameDispatchHelper> helper) override;
void OnGetDefaultPrintSettings(content::RenderFrameHost* render_frame_host,
IPC::Message* reply_msg) override;
void OnScriptedPrint(content::RenderFrameHost* render_frame_host,
const PrintHostMsg_ScriptedPrint_Params& params,
IPC::Message* reply_msg) override;
void OnShowInvalidPrinterSettingsError();
// Processes a NOTIFY_PRINT_JOB_EVENT notification.
void OnNotifyPrintJobEvent(const printing::JobEventDetails& event_details);
// 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();
// Checks that synchronization is correct and a print query exists for
// |cookie|. If so, returns the document associated with the cookie.
printing::PrintedDocument* GetDocument(int cookie);
// Starts printing a document with data given in |print_data|. |print_data|
// must successfully initialize a metafile. |document| is the printed
// document associated with the print job. Returns true if successful.
void PrintDocument(printing::PrintedDocument *document,
const scoped_refptr<base::RefCountedMemory> &print_data,
const gfx::Size &page_size,
const gfx::Rect &content_area,
const gfx::Point &offsets);
// 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 DidPrintDocument() 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 DisconnectFromCurrentPrintJob();
bool CreateNewPrintJob(std::unique_ptr<printing::PrinterQuery> query);
void ReleasePrintJob();
void ReleasePrinterQuery();
private:
// Helper method for UpdatePrintingEnabled().
void SendPrintingEnabled(bool enabled, content::RenderFrameHost* rfh);
// content::WebContentsObserver implementation.
void DidStartLoading() override;
private:
content::NotificationRegistrar m_registrar;
scoped_refptr<printing::PrintJob> m_printJob;
bool m_isInsideInnerMessageLoop;
bool m_didPrintingSucceed;
scoped_refptr<printing::PrintQueriesQueue> m_printerQueriesQueue;
// The current RFH that is printing with a system printing dialog.
content::RenderFrameHost *m_printingRFH;
DISALLOW_COPY_AND_ASSIGN(PrintViewManagerBaseQt);
};
} // namespace QtWebEngineCore
#endif // PRINT_VIEW_MANAGER_BASE_QT_H
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