1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef PRINTING_PRINT_DIALOG_GTK_INTERFACE_H_ 6 #define PRINTING_PRINT_DIALOG_GTK_INTERFACE_H_ 7 8 #include "base/strings/string16.h" 9 #include "printing/printing_context_linux.h" 10 #include "ui/gfx/native_widget_types.h" 11 12 namespace printing { 13 14 class MetafilePlayer; 15 class PrintSettings; 16 17 // An interface for GTK printing dialogs. Classes that live outside of 18 // printing/ can implement this interface and get threading requirements 19 // correct without exposing those requirements to printing/. 20 class PrintDialogGtkInterface { 21 public: 22 // Tell the dialog to use the default print setting. 23 virtual void UseDefaultSettings() = 0; 24 25 // Updates the dialog to use |settings|. Only used when printing without the 26 // system print dialog. E.g. for Print Preview. Returns false on error. 27 virtual bool UpdateSettings(PrintSettings* settings) = 0; 28 29 // Shows the dialog and handles the response with |callback|. Only used when 30 // printing with the native print dialog. 31 virtual void ShowDialog( 32 gfx::NativeView parent_view, 33 bool has_selection, 34 const PrintingContextLinux::PrintSettingsCallback& callback) = 0; 35 36 // Prints the document named |document_name| contained in |metafile|. 37 // Called from the print worker thread. Once called, the 38 // PrintDialogGtkInterface instance should not be reused. 39 virtual void PrintDocument(const MetafilePlayer& metafile, 40 const base::string16& document_name) = 0; 41 42 // Same as AddRef/Release, but with different names since 43 // PrintDialogGtkInterface does not inherit from RefCounted. 44 virtual void AddRefToDialog() = 0; 45 virtual void ReleaseDialog() = 0; 46 47 protected: 48 virtual ~PrintDialogGtkInterface() {} 49 }; 50 51 } // namespace printing 52 53 #endif // PRINTING_PRINT_DIALOG_GTK_INTERFACE_H_ 54
