chrome/browser/resources/print_preview/data/ticket_items/copies.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    * Copies ticket item whose value is a {@code string} that indicates how many
  10    * copies of the document should be printed. The ticket item is backed by a
  11    * string since the user can textually input the copies value.
  12    * @param {!print_preview.DestinationStore} destinationStore Destination store
  13    *     used determine if a destination has the copies capability.
  14    * @constructor
  15    * @extends {print_preview.ticket_items.TicketItem}
  16    */
  17   function Copies(destinationStore) {
  18     print_preview.ticket_items.TicketItem.call(
  19         this, null /*appState*/, null /*field*/, destinationStore);
  20   };
  21
  22   Copies.prototype = {
  23     __proto__: print_preview.ticket_items.TicketItem.prototype,
  24
  25     /** @override */
  26     wouldValueBeValid: function(value) {
  27       if (/[^\d]+/.test(value)) {
  28         return false;
  29       }
  30       var copies = parseInt(value, 10);
  31       if (copies > 999 || copies < 1) {
  32         return false;
  33       }
  34       return true;
  35     },
  36
  37     /** @override */
  38     isCapabilityAvailable: function() {
  39       return !!this.getCopiesCapability_();
  40     },
  41
  42     /** @return {number} The number of copies indicated by the ticket item. */
  43     getValueAsNumber: function() {
  44       return parseInt(this.getValue(), 10);
  45     },
  46
  47     /** @override */
  48     getDefaultValueInternal: function() {
  49       var cap = this.getCopiesCapability_();
  50       return cap.hasOwnProperty('default') ? cap.default : '1';
  51     },
  52
  53     /** @override */
  54     getCapabilityNotAvailableValueInternal: function() {
  55       return '1';
  56     },
  57
  58     /**
  59      * @return {Object} Copies capability of the selected destination.
  60      * @private
  61      */
  62     getCopiesCapability_: function() {
  63       var dest = this.getSelectedDestInternal();
  64       return (dest &&
  65               dest.capabilities &&
  66               dest.capabilities.printer &&
  67               dest.capabilities.printer.copies) ||
  68              null;
  69     }
  70   };
  71
  72   // Export
  73   return {
  74     Copies: Copies
  75   };
  76 });