components/pdf/renderer/ppb_pdf_impl.h

   1 // Copyright 2014 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 COMPONENT_PDF_RENDERER_PPB_PDF_IMPL_H_
   6 #define COMPONENT_PDF_RENDERER_PPB_PDF_IMPL_H_
   7
   8 #include "ppapi/c/pp_instance.h"
   9
  10 struct PPB_PDF;
  11
  12 namespace pdf {
  13
  14 class PPB_PDF_Impl {
  15  public:
  16   class PrintClient {
  17    public:
  18     virtual ~PrintClient() {}
  19
  20     // Returns whether printing is enabled for the plugin instance identified by
  21     // |instance_id|.
  22     virtual bool IsPrintingEnabled(PP_Instance instance_id) = 0;
  23
  24     // Invokes the "Print" command for the plugin instance identified by
  25     // |instance_id|. Returns whether the "Print" command was issued or not.
  26     virtual bool Print(PP_Instance instance_id) = 0;
  27   };
  28
  29   // Returns a pointer to the interface implementing PPB_PDF that is exposed
  30   // to the plugin.
  31   static const PPB_PDF* GetInterface();
  32
  33   // Invokes the "Print" command for the given instance as if the user right
  34   // clicked on it and selected "Print". Returns if the "Print" command was
  35   // issued or not.
  36   static bool InvokePrintingForInstance(PP_Instance instance);
  37
  38   // The caller retains the ownership of |print_client|. The client is
  39   // allowed to be set only once, and when set, the client must outlive the
  40   // PPB_PDF_Impl instance.
  41   static void SetPrintClient(PrintClient* print_client);
  42 };
  43
  44 }  // namespace pdf
  45
  46 #endif  // COMPONENT_PDF_RENDERER_PPB_PDF_IMPL_H_