[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 330 matching lines @@
           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));

[Aleksey Shlyapnikov, 2014/11/21 22:50:42]

Please remove _all_ obsolete code.

[Nikhil, 2014/11/24 12:57:30]

Done.

       this.tracker.add(
           this.nativeLayer_,
+          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')) {
         this.tracker.add(
             $('system-dialog-link'),
@@ skipping 615 matching lines @@
     },
 
     /**
      * Called when the native layer dispatches a DISABLE_SCALING event. Resets
      * fit-to-page selection and updates document info.
      * @private
      */
     onDisableScaling_: function() {
       this.printTicketStore_.fitToPage.updateValue(null);
       this.documentInfo_.updateIsScalingDisabled(true);
     },

[Aleksey Shlyapnikov, 2014/11/21 22:50:42]

Please remove _all_ obsolete code.

[Nikhil, 2014/11/24 12:57:30]

Done.

 
     /**
+     * Called when the native layer dispatches a PRINT_PRESET_OPTIONS event. It
+     * updates the print preset options from source document.

[Aleksey Shlyapnikov, 2014/11/21 22:50:42]

Just one sentence:

Updates printing options according to source document presets.

[Nikhil, 2014/11/24 12:57:30]

Done.

+     * @param {event} event Contains options from source document.

[Aleksey Shlyapnikov, 2014/11/21 22:50:42]

event -> Event

[Nikhil, 2014/11/24 12:57:30]

Done.

+     * @private
+     */
+    onPrintPresetOptionsFromDocument_: function(event) {
+      if (event.optionsFromDocument.disableScaling)
+        this.onDisableScaling_();
+
+      if (this.printTicketStore_.copies.isCapabilityAvailable() &&
+          event.optionsFromDocument.copies) {

[Aleksey Shlyapnikov, 2014/11/21 22:50:42]

Let's swap checks and add sanity check:

if (event.optionsFromDocument.copies > 0 &&
    this.printTicketStore_.copies.isCapabilityAvailable()) {

[Nikhil, 2014/11/24 12:57:30]

Done.

+        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);
       this.printHeader_.setErrorMessage(
           loadTimeData.getString('couldNotPrint'));
     },
@@ skipping 297 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();
 });