ppapi/api/dev/ppp_printing_dev.idl

   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
   6 /**
   7  * Definition of the PPP_Printing interface.
   8  */
   9
  10 // Note: This version should always match the PPB_Printing_Dev interface.
  11 label Chrome {
  12   M21 = 0.6
  13 };
  14
  15 /**
  16  * Specifies a contiguous range of page numbers to be printed.
  17  * The page numbers use a zero-based index.
  18  */
  19 [assert_size(8)]
  20 struct PP_PrintPageNumberRange_Dev {
  21   uint32_t first_page_number;
  22   uint32_t last_page_number;
  23 };
  24
  25 interface PPP_Printing_Dev {
  26   /**
  27    *  Returns a bit field representing the supported print output formats.  For
  28    *  example, if only PDF and PostScript are supported,
  29    *  QuerySupportedFormats returns a value equivalent to:
  30    *  (PP_PRINTOUTPUTFORMAT_PDF | PP_PRINTOUTPUTFORMAT_POSTSCRIPT)
  31    */
  32   uint32_t QuerySupportedFormats([in] PP_Instance instance);
  33
  34   /**
  35    * Begins a print session with the given print settings. Calls to PrintPages
  36    * can only be made after a successful call to Begin. Returns the number of
  37    * pages required for the print output at the given page size (0 indicates
  38    * a failure).
  39    */
  40   int32_t Begin([in] PP_Instance instance,
  41                 [in] PP_PrintSettings_Dev print_settings);
  42
  43   /**
  44    * Prints the specified pages using the format specified in Begin.
  45    * Returns a PPB_Buffer resource that represents the printed output. Returns
  46    * 0 on failure.
  47    */
  48   PP_Resource PrintPages([in] PP_Instance instance,
  49                          [in] PP_PrintPageNumberRange_Dev page_ranges,
  50                          [in] uint32_t page_range_count);
  51
  52   /** Ends the print session. Further calls to PrintPages will fail. */
  53   void End([in] PP_Instance instance);
  54
  55   /**
  56    *  Returns true if the current content should be printed into the full page
  57    *  and not scaled down to fit within the printer's printable area.
  58    */
  59   PP_Bool IsScalingDisabled([in] PP_Instance instance);
  60 };