chrome/browser/resources/print_preview/data/ticket_items/duplex.js

   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 cr.define('print_preview.ticket_items', function() {
   6   'use strict';
   7
   8   /**
   9    * Duplex ticket item whose value is a {@code boolean} that indicates whether
  10    * the document should be duplex printed.
  11    * @param {!print_preview.AppState} appState App state used to persist collate
  12    *     selection.
  13    * @param {!print_preview.DestinationStore} destinationStore Destination store
  14    *     used determine if a destination has the collate capability.
  15    * @constructor
  16    * @extends {print_preview.ticket_items.TicketItem}
  17    */
  18   function Duplex(appState, destinationStore) {
  19     print_preview.ticket_items.TicketItem.call(
  20         this,
  21         appState,
  22         print_preview.AppState.Field.IS_DUPLEX_ENABLED,
  23         destinationStore);
  24   };
  25
  26   Duplex.prototype = {
  27     __proto__: print_preview.ticket_items.TicketItem.prototype,
  28
  29     /** @override */
  30     wouldValueBeValid: function(value) {
  31       return true;
  32     },
  33
  34     /** @override */
  35     isCapabilityAvailable: function() {
  36       var cap = this.getDuplexCapability_();
  37       if (!cap) {
  38         return false;
  39       }
  40       var hasLongEdgeOption = false;
  41       var hasSimplexOption = false;
  42       cap.option.forEach(function(option) {
  43         hasLongEdgeOption = hasLongEdgeOption || option.type == 'LONG_EDGE';
  44         hasSimplexOption = hasSimplexOption || option.type == 'NO_DUPLEX';
  45       });
  46       return hasLongEdgeOption && hasSimplexOption;
  47     },
  48
  49     /** @override */
  50     getDefaultValueInternal: function() {
  51       var cap = this.getDuplexCapability_();
  52       var defaultOptions = cap.option.filter(function(option) {
  53         return option.is_default;
  54       });
  55       return defaultOptions.length == 0 ? false :
  56                                           defaultOptions[0].type == 'LONG_EDGE';
  57     },
  58
  59     /** @override */
  60     getCapabilityNotAvailableValueInternal: function() {
  61       return false;
  62     },
  63
  64     /**
  65      * @return {Object} Duplex capability of the selected destination.
  66      * @private
  67      */
  68     getDuplexCapability_: function() {
  69       var dest = this.getSelectedDestInternal();
  70       return (dest &&
  71               dest.capabilities &&
  72               dest.capabilities.printer &&
  73               dest.capabilities.printer.duplex) ||
  74              null;
  75     }
  76   };
  77
  78   // Export
  79   return {
  80     Duplex: Duplex
  81   };
  82 });