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// Copyright (c) 2011 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.
#include "base/string16.h"
#include "printing/printing_context_cairo.h"
namespace printing {
class Metafile;
// 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 {
// Tell the dialog to use the default print setting.
virtual void UseDefaultSettings() = 0;
// Update the dialog to use |settings| and |ranges|, where |settings| is a
// dictionary of settings with possible keys from
// printing/print_job_constants.h. Only used when printing without the system
// print dialog. E.g. for Print Preview. Returns false on error.
virtual bool UpdateSettings(const base::DictionaryValue& settings,
const PageRanges& ranges) = 0;
// Shows the dialog and handles the response with |callback|. Only used when
// printing with the native print dialog.
virtual void ShowDialog(
PrintingContextCairo::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 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;
virtual ~PrintDialogGtkInterface() {}
} // namespace printing