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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 (c) 2012 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 PRINTING_PRINTING_MESSAGE_FILTER_QT_H_
#define PRINTING_PRINTING_MESSAGE_FILTER_QT_H_
#include <string>
#include "base/compiler_specific.h"
#include "base/prefs/pref_member.h"
#include "content/public/browser/browser_message_filter.h"
#if defined(OS_WIN)
#include "base/memory/shared_memory.h"
#endif
struct PrintHostMsg_ScriptedPrint_Params;
namespace base {
class DictionaryValue;
class FilePath;
}
namespace content {
class WebContents;
}
namespace printing {
class PrintJobManager;
class PrintQueriesQueue;
class PrinterQuery;
}
namespace QtWebEngineCore {
// This class filters out incoming printing related IPC messages for the
// renderer process on the IPC thread.
class PrintingMessageFilterQt : public content::BrowserMessageFilter {
public:
PrintingMessageFilterQt(int render_process_id);
// content::BrowserMessageFilter methods.
void OverrideThreadForMessage(const IPC::Message& message,
content::BrowserThread::ID* thread) override;
bool OnMessageReceived(const IPC::Message& message) override;
private:
~PrintingMessageFilterQt() override;
#if defined(OS_WIN)
// Used to pass resulting EMF from renderer to browser in printing.
void OnDuplicateSection(base::SharedMemoryHandle renderer_handle,
base::SharedMemoryHandle* browser_handle);
#endif
// GetPrintSettingsForRenderView must be called via PostTask and
// base::Bind. Collapse the settings-specific params into a
// struct to avoid running into issues with too many params
// to base::Bind.
struct GetPrintSettingsForRenderViewParams;
// Checks if printing is enabled.
void OnIsPrintingEnabled(bool* is_enabled);
// Get the default print setting.
void OnGetDefaultPrintSettings(IPC::Message* reply_msg);
void OnGetDefaultPrintSettingsReply(scoped_refptr<printing::PrinterQuery> printer_query,
IPC::Message* reply_msg);
// The renderer host have to show to the user the print dialog and returns
// the selected print settings. The task is handled by the print worker
// thread and the UI thread. The reply occurs on the IO thread.
void OnScriptedPrint(const PrintHostMsg_ScriptedPrint_Params& params,
IPC::Message* reply_msg);
void OnScriptedPrintReply(scoped_refptr<printing::PrinterQuery> printer_query,
IPC::Message* reply_msg);
// Modify the current print settings based on |job_settings|. The task is
// handled by the print worker thread and the UI thread. The reply occurs on
// the IO thread.
void OnUpdatePrintSettings(int document_cookie,
const base::DictionaryValue& job_settings,
IPC::Message* reply_msg);
void OnUpdatePrintSettingsReply(scoped_refptr<printing::PrinterQuery> printer_query,
IPC::Message* reply_msg);
// Check to see if print preview has been cancelled.
void OnCheckForCancel(int32_t preview_ui_id,
int preview_request_id,
bool* cancel);
const int render_process_id_;
scoped_refptr<printing::PrintQueriesQueue> queue_;
DISALLOW_COPY_AND_ASSIGN(PrintingMessageFilterQt);
};
} // namespace printing
#endif // PRINTING_PRINTING_MESSAGE_FILTER_QT_H_
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