[JS Changes] Support NumCopies print preset

chrome/browser/resources/print_preview/print_preview.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // TODO(rltoscano): Move data/* into print_preview.data namespace
 
 <include src="component.js">
 <include src="print_preview_focus_manager.js">
 
 cr.define('print_preview', function() {
@@ skipping 329 matching lines @@
       this.tracker.add(
           this.nativeLayer_,
           print_preview.NativeLayer.EventType.FILE_SELECTION_COMPLETE,
           this.onFileSelectionComplete_.bind(this));
       this.tracker.add(
           this.nativeLayer_,
           print_preview.NativeLayer.EventType.SETTINGS_INVALID,
           this.onSettingsInvalid_.bind(this));
       this.tracker.add(
           this.nativeLayer_,
-          print_preview.NativeLayer.EventType.DISABLE_SCALING,
-          this.onDisableScaling_.bind(this));
+          print_preview.NativeLayer.EventType.PRINT_PRESET_OPTIONS,
+          this.onPrintPresetOptionsFromDocument_.bind(this));
       this.tracker.add(
           this.nativeLayer_,
           print_preview.NativeLayer.EventType.PRIVET_PRINT_FAILED,
           this.onPrivetPrintFailed_.bind(this));
       this.tracker.add(
           this.nativeLayer_,
           print_preview.NativeLayer.EventType.MANIPULATE_SETTINGS_FOR_TEST,
           this.onManipulateSettingsForTest_.bind(this));
 
       if ($('system-dialog-link')) {
@@ skipping 610 matching lines @@
      * corresponding native layer event.
      * @param {boolean} addAccount Whether to open an 'add a new account' or
      *     default sign in page.
      * @private
      */
     onCloudPrintSignInActivated_: function(addAccount) {
       this.nativeLayer_.startCloudPrintSignIn(addAccount);
     },
 
     /**
-     * Called when the native layer dispatches a DISABLE_SCALING event. Resets
-     * fit-to-page selection and updates document info.
+     * Updates printing options according to source document presets.
+     * @param {Event} event Contains options from source document.
      * @private
      */
-    onDisableScaling_: function() {
-      this.printTicketStore_.fitToPage.updateValue(null);
-      this.documentInfo_.updateIsScalingDisabled(true);
+    onPrintPresetOptionsFromDocument_: function(event) {
+      if (event.optionsFromDocument.disableScaling) {
+        // Reset fit-to-page selection and update document info.

[Aleksey Shlyapnikov, 2014/11/24 19:47:58]

Remove this comment, it states the obvious now.

[Nikhil, 2014/11/25 06:36:13]

Done.

+        this.printTicketStore_.fitToPage.updateValue(null);
+        this.documentInfo_.updateIsScalingDisabled(true);
+      }
+
+      if (event.optionsFromDocument.copies > 0 &&
+          this.printTicketStore_.copies.isCapabilityAvailable()) {
+        this.printTicketStore_.copies.updateValue(
+            event.optionsFromDocument.copies);
+      }
     },
 
     /**
      * Called when privet printing fails.
      * @param {Event} event Event object representing the failure.
      * @private
      */
     onPrivetPrintFailed_: function(event) {
       console.error('Privet printing failed with error code ' +
                     event.httpError);
@@ skipping 300 matching lines @@
 <include src="search/cloud_destination_list.js">
 <include src="search/recent_destination_list.js">
 <include src="search/destination_list_item.js">
 <include src="search/destination_search.js">
 <include src="search/fedex_tos.js">
 
 window.addEventListener('DOMContentLoaded', function() {
   printPreview = new print_preview.PrintPreview();
   printPreview.initialize();
 });