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// 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_PRINT_DIALOG_GTK_INTERFACE_H_
#define PRINTING_PRINT_DIALOG_GTK_INTERFACE_H_
#include "base/strings/string16.h"
#include "printing/printing_context_gtk.h"
#include "ui/gfx/native_widget_types.h"
namespace printing {
class Metafile;
class PrintSettings;
// An interface for GTK printing dialogs. Classes that live outside of
// printing/ can implement this interface and get threading requirements
// correct without exposing those requirements to printing/.
class PrintDialogGtkInterface {
public:
// Tell the dialog to use the default print setting.
virtual void UseDefaultSettings() = 0;
// Updates the dialog to use |settings|. Only used when printing without the
// system print dialog. E.g. for Print Preview. Returns false on error.
virtual bool UpdateSettings(PrintSettings* settings) = 0;
// Shows the dialog and handles the response with |callback|. Only used when
// printing with the native print dialog.
virtual void ShowDialog(
gfx::NativeView parent_view,
bool has_selection,
const PrintingContextGtk::PrintSettingsCallback& callback) = 0;
// Prints the document named |document_name| contained in |metafile|.
// Called from the print worker thread. Once called, the
// PrintDialogGtkInterface instance should not be reused.
virtual void PrintDocument(const Metafile* metafile,
const base::string16& document_name) = 0;
// Same as AddRef/Release, but with different names since
// PrintDialogGtkInterface does not inherit from RefCounted.
virtual void AddRefToDialog() = 0;
virtual void ReleaseDialog() = 0;
protected:
virtual ~PrintDialogGtkInterface() {}
};
} // namespace printing
#endif // PRINTING_PRINT_DIALOG_GTK_INTERFACE_H_
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